Warmer

Abstract

The warmer comprises a shell assembly and a heating assembly, the shell assembly comprises at least two installation shells which are sleeved with each other, at least two rolling wheels which are arranged at intervals in the circumferential direction are arranged between the two installation shells which are sleeved with each other, the two installation shells are in sliding fit through the rolling wheels, and a heat dissipation channel is formed in the shell assembly; the shell assembly is provided with a heat dissipation opening. The heating assembly is arranged in the heat dissipation channel. According to the technical scheme, mutual friction between the mounting shells in the stretching and retracting process of the warmer can be reduced or avoided, stretching and retracting of the warmer are smoother, and abrasion of the mounting shells is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of heaters, and in particular to a heater. Background Art

[0002] In the related art, some heaters are configured as retractable structures in order to adjust the size for easy storage. The heaters are provided with a housing assembly consisting of at least two mutually fitting mounting shells. The two mounting shells can slide relative to each other, so that one mounting shell can slide into and be stored in the other mounting shell to shrink the housing assembly and reduce the storage volume. When in use, the housing assembly only needs to be extended. However, during the process of the housing assembly being extended and retracted, there will be a problem of sliding friction between the two mutually fitting mounting shells, which affects the smoothness of the housing assembly extension and retraction process and easily causes the mounting shells to wear. Summary of the invention

[0003] The main purpose of the present invention is to provide a heater, aiming to reduce or avoid the mutual friction between the mounting shells during the extension and retraction process of the heater, so as to make the extension and retraction of the heater smoother and reduce the wear of the mounting shell.

[0004] To achieve the above object, the present invention provides a heater, comprising:

[0005] A shell assembly, the shell assembly comprising at least two mutually nested mounting shells, at least two rollers spaced circumferentially disposed between the two mutually nested mounting shells, and the shell assembly forms a heat dissipation channel through the sliding fit of the rollers, and the shell assembly is provided with a heat dissipation port; and

[0006] A heating component is arranged in the heat dissipation channel.

[0007] In one embodiment of the present application, at least two groups of first guide rails and first brackets are arranged circumferentially between the two mutually nested mounting shells, the first brackets are provided with sliding grooves, and the first guide rails are slidably connected to the sliding grooves;

[0008] The roller is arranged between the first guide rail and the groove wall of the sliding groove.

[0009] In one embodiment of the present application, the roller is rotatably disposed on the bottom wall of the sliding groove and is in rolling contact with the first guide rail.

[0010] In one embodiment of the present application, the sliding groove has two groove side walls arranged opposite to each other, and the rollers are disposed on both of the groove side walls.

[0011] In one embodiment of the present application, the two mutually nested installation shells are defined as an outer shell and an inner shell, and one end of the inner shell is inserted into the outer shell;

[0012] The first guide rail is arranged on the inner side wall of the outer shell, and the first bracket and the roller are both arranged on one end of the inner shell inserted into the outer shell.

[0013] In one embodiment of the present application, the shell assembly also includes an auxiliary pulley structure, which includes a second bracket and a pulley, the second bracket is fixedly connected to the first guide rail, and the pulley is rotatably disposed on the second bracket and rollingly abuts against the outer wall of the inner shell.

[0014] In one embodiment of the present application, an opening for passing the inner shell is formed at one end of the outer shell, and the auxiliary pulley structure is disposed at one end of the first guide rail close to the opening and is disposed opposite to the first bracket, and moves closer to or farther from each other when the two mounting shells slide relative to each other;

[0015] The first bracket and the auxiliary pulley structure can abut against each other, so that the two mounting shells are limited and locked in the extension direction and can rise synchronously.

[0016] In one embodiment of the present application, the second bracket has two side plates arranged opposite to each other and a top plate located between the two side plates, the pulley is rotatably arranged on the top plate, and the first guide rail is clamped between the two side plates and the top plate;

[0017] Alternatively, the first guide rail is provided with a recessed mounting groove, and the second bracket is arranged in the mounting groove.

[0018] In one embodiment of the present application, the housing assembly includes at least three mounting shells that are sequentially sleeved, and the three mounting shells are defined as an outer mounting shell, a middle mounting shell, and an inner mounting shell that are sequentially sleeved;

[0019] The first guide rail and the first bracket between the outer mounting shell and the middle mounting shell are the outer shell inner guide rail and the middle shell bracket, and the first guide rail and the first bracket between the middle mounting shell and the inner mounting shell are the middle shell inner guide rail and the inner shell bracket. One end of the middle shell inner guide rail protrudes from the middle mounting shell and fixes the middle shell bracket.

[0020] In one embodiment of the present application, a plug-in portion is protruded from one side of the middle bracket facing the inner guide rail of the middle shell, and the plug-in portion is plugged into the inner guide rail of the middle shell.

[0021] In one embodiment of the present application, the housing assembly further comprises an anti-rotation wheel structure, the anti-rotation wheel structure comprises a second guide rail, a third bracket and an anti-rotation wheel, the second guide rail and the third bracket are respectively arranged on two mutually sleeved side walls of the mounting shell;

[0022] The second guide rail is recessed with a limiting groove, the anti-rotation wheel is rotatably arranged on the third bracket, and is located in the limiting groove and rollably abuts against the groove side wall of the limiting groove.

[0023] In one embodiment of the present application, the heater further comprises a telescopic assembly, and the telescopic assembly is at least drivingly connected to the mounting shell located at the top to drive the shell assembly to telescope.

[0024] In one embodiment of the present application, the mounting shells of the housing assembly are sequentially mounted from bottom to top and from inside to outside;

[0025] Alternatively, the mounting shells of the housing assembly are mounted sequentially from bottom to top and from outside to inside.

[0026] The technical solution of the present invention is to arrange a roller assembly between two mutually fitting mounting shells of a shell assembly, so that the two mounting shells drive the roller to roll along the rolling direction between the two mounting shells during the relative sliding to extend and retract the shell assembly. During this process, the two mounting shells do not contact each other, so that the mounting shells do not rub against each other during the extension and retraction of the shell assembly, thereby reducing the friction force on the mounting shells. Compared with the sliding friction force generated when the two mounting shells are in direct contact, the friction force generated by the rolling friction between the roller and the mounting shell is smaller, thereby making the extension and retraction process of the shell assembly smoother. In addition, the roller assembly arranges at least two rollers along the circumferential array of the mounting shell. For example, when two rollers are arranged, the two rollers are arranged on two sides of the mounting shell that are relatively arranged. When rollers are arranged at three or more circumferential positions, different directions of the mounting shell are limited by the roller abutment, so that the inner mounting shell is relatively centered in the outer mounting shell, so as to avoid the inner mounting shell from being offset and causing friction with the outer mounting shell, thereby improving the structural stability and safety of the heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 A diagram showing a contracted state of an embodiment of a heater of the present invention;

[0029] Figure 2 A cross-sectional view of a heater with rollers arranged circumferentially in a first embodiment of the present invention in a retracted state;

[0030] Figure 3 for Figure 2 A cross-sectional view of the central heater in an extended state;

[0031] Figure 4 for Figure 2 Exploded view of the central heater;

[0032] Figure 5 for Figure 2 A cross-sectional view of the central heater at the roller position;

[0033] Figure 6 for Figure 5 The enlarged view of point A in the middle;

[0034] Figure 7 A cross-sectional view of a heater provided with an anti-rotation wheel according to a second embodiment of the present invention;

[0035] Figure 8 for Figure 7 The enlarged view of point B in the middle;

[0036] Fig. 9 for Figure 7 Enlarged view of point C in the middle;

[0037] Fig.10 This is an exploded view of the coordination of the first guide rail, the roller and the auxiliary pulley structure in the heater with the auxiliary pulley structure according to the third embodiment of the present invention;

[0038] Fig.11 for Fig.10 The structural diagram of the first bracket and the roller;

[0039] Fig.12 for Fig.10 Structural diagram of the auxiliary pulley structure;

[0040] Fig.13 It is an exploded view of the coordination of the first guide rail, the roller and another embodiment of the auxiliary pulley structure in the heater with the auxiliary pulley structure according to the fourth embodiment of the present invention;

[0041] Fig.14 for Fig.13 The structural diagram of the first bracket and the roller;

[0042] Fig.15 for Fig.13 Structural diagram of the auxiliary pulley structure;

[0043] Fig.16 It is a structural diagram of an embodiment of the anti-rotation wheel structure in a heater provided with an anti-rotation wheel according to the present invention;

[0044] Fig.17 is a cross-sectional view of a heater at a roller position according to a fifth embodiment of the present invention;

[0045] Fig.18 for Fig.17 The enlarged view of point D in the middle;

[0046] Fig.19 for Fig.17 An exploded view of the first guide rail, roller and auxiliary pulley structure in the heater;

[0047] Fig. 20 A cross-sectional view of an embodiment of a telescopic component in a heater of the present invention in an extended state;

[0048] Fig.21 for Fig. 20 A cross-sectional view of the telescopic assembly in a retracted state;

[0049] Fig. 22 for Fig. 20 Exploded view of the telescopic component in the figure;

[0050] Fig.23 An exploded view of an embodiment of a sliding member and a locking structure in a telescopic assembly;

[0051] Fig.24 An exploded view of another embodiment of a sliding member and a locking structure in a telescopic assembly;

[0052] Fig.25 for Fig.24 Enlarged view of point E in the middle;

[0053] Fig.26 It is a structural diagram of the sixth embodiment of the heater of the present invention in a retracted state;

[0054] Fig. 27 for Fig.26 The structural diagram of the central heater in the extended state;

[0055] Fig.28 for Fig.26 a cross-sectional view of the central heater in a retracted state with the roller removed;

[0056] Fig.29 for Fig.26 a cross-sectional view of the central heater in the extended position with the rollers removed;

[0057] Fig.30 It is a structural diagram of another embodiment of the telescopic component in the heater of the present invention in a retracted state;

[0058] Fig.31 for Fig.30 The enlarged view of F in the middle;

[0059] Fig.32 for Fig.30 Structural diagram of the telescopic component in the extended state;

[0060] Fig.33 for Fig.32 Enlarged view of G in the middle;

[0061] Fig.34 is a cross-sectional view of a seventh embodiment of the heater of the present invention in an extended state;

[0062] Fig.35 for Fig.34 a cross-sectional view of the heater in a retracted state;

[0063] Fig.36 for Fig.34 An exploded view of the telescopic and buffer components in the heater;

[0064] Fig.37 It is an exploded view of another embodiment of the telescopic component in the heater of the present invention;

[0065] Fig.38 It is a structural diagram of an embodiment of a buffer component in a heater of the present invention;

[0066] Fig.39 for Fig.38 A partial cross-sectional view of the middle buffer assembly in the intake state;

[0067] Fig.40 for Fig.38 A partial cross-sectional view of the middle buffer assembly in the exhaust state;

[0068] Fig.41 This is a diagram showing the coordination structure of an embodiment of a telescopic assembly and a rope buffer assembly in a heater of the present invention;

[0069] Fig.42 A cross-sectional view of the eighth embodiment of the heater of the present invention using an electric threaded telescopic assembly in an extended state with the roller removed;

[0070] Fig.43 for Fig.42 An exploded view of the telescopic assembly in the heater;

[0071] Fig.44 A cross-sectional view of a ninth embodiment of the heater of the present invention using a manual threaded retractable assembly in an extended state with the roller removed;

[0072] Fig.45 for Fig.44 Structural diagram of the telescopic assembly in the heater.

[0073] Description of Figure Numbers:

[0074]

[0075]

[0076] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0077] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0078] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0079] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0081] The present invention provides a heater 100 .

[0082] Please refer to Figures 1 to 4 In some embodiments of the heater 100 of the present application, the heater 100 includes:

[0083] The housing assembly 10 includes at least two mutually nested mounting shells 11, at least two rollers 16 are arranged circumferentially spaced between the two mutually nested mounting shells 11, and the housing assembly 10 forms a heat dissipation channel 113 through the sliding fit of the rollers 16, and the housing assembly 10 is provided with a heat dissipation port 1121; and

[0084] The heating component 20 is disposed in the heat dissipation channel 113 .

[0085] The heater 100 proposed in the present application includes a shell assembly 10 as an installation base and a heating assembly 20 arranged in the shell assembly 10. The heating assembly 20 can be an oil-filled heater or a resistive heater. The shell assembly 10 includes a plurality of mounting shells 11 that are fitted in sequence, so that the shell assembly 10 can be retracted. The shell assembly 10 can be retracted in the height direction or in the horizontal direction. When the heater 100 is used, the shell assembly 10 can be stretched to extend the length of the heat dissipation channel 113. When the shell assembly 10 is retractable in the horizontal direction and a heat dissipation port 1121 is provided on the top of each mounting shell 11, the heat dissipation area of ​​the heater 100 can be increased. When the shell assembly 10 is retracted in the height direction, a heat dissipation channel 113 similar to a chimney is formed inside the shell assembly 10. At this time, when the heating assembly 11 is When the heater 100 is in operation, the air in the heat dissipation channel 113 is heated and the gas expands, causing the density to decrease. The hot air rises upward and is discharged from the heat dissipation port 1121 at the top to dissipate heat outward. At the same time, due to the reduction of the internal air pressure of the heat dissipation channel 113, the external cold air will enter the heat dissipation channel 113 from the air inlet 1111 at the bottom, thereby realizing the gas exchange between the heat dissipation channel 113 and the external environment. In this process, the speed at which the hot air flows out of the heater 100 is controlled by the heat, so that the heater 100 can automatically adjust the speed of the heat dissipation and the air outlet according to the temperature of the internal gas, so that the heater 100 dissipates heat outward evenly. When the heater 100 is not in use, the shell assembly 10 can be shrunk to reduce the volume of the heater 100, reduce the space occupied by the heater 100, and improve the storage portability of the heater 100.

[0086] In this embodiment, the two mounting shells 11 that fit each other are slidably matched by rollers 16, so that the two mounting shells 11 slide relative to each other to drive the rollers 16 to roll along the rolling direction between the two mounting shells 11 during the process of the shell assembly 10 extending and retracting. During this process, the two mounting shells 11 do not contact each other, so that the mounting shells 11 do not rub against each other during the extension and retraction of the shell assembly 10, thereby reducing the friction force on the mounting shells 11. Compared with the sliding friction force generated when the two mounting shells 11 are in direct contact, the friction force generated by the rolling friction between the rollers 16 and the mounting shells 11 is smaller, thereby making the extension and retraction process of the shell assembly 10 smoother; and at least two rollers 16 are arranged along the circumference of the mounting shells 11. , which is intended to make the mounting shell 11 receive abutting forces in different directions, so as to avoid the inner mounting shell 11 being deviated due to external force or other factors, resulting in the side walls of the two mutually nested mounting shells 11 abutting against each other. At least two circumferential rollers 16 are arranged so that the inner mounting shell 11 remains roughly centered relative to the outer mounting shell 11; for example, when two rollers 16 are provided, the two rollers 16 are arranged on two opposite sides of the mounting shell 11; when three or more rollers 16 are provided, a plurality of rollers 16 are arranged in an array along the circumference of the mounting shell 11, so that the mounting shell 11 is subjected to uniform forces in different circumferential directions, so that the mounting shell 11 is centrally arranged, and the position and structure of the mounting shell 11 as well as the stability of the movement process are improved.

[0087] Therefore, it can be understood that the technical solution of the present application is to arrange a roller 16 assembly between the two mutually nested mounting shells 11 of the shell assembly 10, so that the two mounting shells 11 drive the roller 16 to roll along the rolling direction between the two mounting shells 11 during the relative sliding process of the shell assembly 10 to extend and retract the shell assembly 10. In this process, the two mounting shells 11 do not contact each other, so that the mounting shells 11 do not rub against each other during the extension and retraction process of the shell assembly 10, thereby reducing the friction force on the mounting shells 11. Compared with the sliding friction force generated when the two mounting shells 11 are in direct contact, the rolling friction between the roller 16 and the mounting shell 11 generates The friction force is smaller, so that the extension and retraction process of the shell assembly 10 is smoother; in addition, the roller 16 assembly sets at least two rollers 16 along the circumferential array of the mounting shell 11. For example, when two rollers 16 are set, the two rollers 16 are set on both sides of the mounting shell 11 that are relatively set. When the rollers 16 are set at three or more circumferential positions, different directions of the mounting shell 11 are limited by the abutment of the rollers 16, so that the inner mounting shell 11 is relatively centered in the outer mounting shell 11, avoiding the inner mounting shell 11 from being offset and causing friction with the outer mounting shell 11, thereby improving the structural stability and safety of the heater 100.

[0088] In addition, it is defined that the at least two mounting shells 11 of the housing assembly 10 include a lower shell 111 located at the bottom and at least one sliding shell 112 that can be lifted and lowered relative to the lower shell 111. The heat dissipation port 1121 of the housing assembly 10 can be opened on the top surface of the housing assembly 10. When the housing assembly 10 is extended in the horizontal direction, the heat dissipation port 1121 can be opened on the top surface of the lower shell 111 or any at least one sliding shell 112. When the housing assembly 10 is extended in the height direction, the sliding shell 112 that is extended to the highest position can be opened. A heat dissipation vent 1121 is provided on the top surface of the shell component 10. With such a configuration, when the hot air in the shell component 10 rises upward, it can be directly dissipated from the top without causing the hot air to collide with the top wall of the shell component 10. In some embodiments, the heat dissipation vent 1121 on the top surface of the shell component 10 is covered with an air outlet grille 115 to prevent foreign matter from falling into the heat dissipation channel 113 from the top heat dissipation vent 1121, and to prevent the user from accidentally putting his hand into the heat dissipation channel 113 and being burned by the heating component 20, thereby improving the safety of the heater 100.

[0089] In some embodiments, the heat dissipation port 1121 is opened on the side of the shell component 10 at a certain distance from the top surface. It can be opened on only one side, or multiple heat dissipation ports 1121 can be opened along the circumference. At this time, warm air can be emitted from the shell component 10 to the circumference, so that the temperature of the heater 100 rises evenly around the sides, thereby improving the user's comfort experience.

[0090] Of course, heat dissipation ports 1121 can be opened on the top and side surfaces of the shell assembly 10 to increase the opening size of the shell assembly 10 for dissipating heat to the outside, and to increase the heat dissipation range of the heater 100, so that the ambient temperature around the heater 100 can quickly reach a comfortable range, thereby improving the user experience.

[0091] Similarly, the air inlet 1111 can be opened on the bottom wall of the lower shell 111, or can be opened on the side wall at a distance from the bottom wall. When the air inlet 1111 is opened on the bottom wall, the shell assembly 10 also includes a foot pad 19, and the foot pad 19 is padded on the bottom of the shell assembly 10 so that the bottom of the shell assembly 10 is suspended to form an air inlet gap. In some embodiments, the air inlet 1111 is covered with an air inlet grille 114 to prevent foreign matter from entering the heat dissipation channel 113 with the air flow, thereby improving the safety of the heater 100.

[0092] Please refer to Figure 5 In some embodiments of the present application, at least two sets of first guide rails 12 and first brackets 13 are arranged circumferentially between the two mutually nested mounting shells 11, and the first bracket 13 is provided with a slide groove 131, and the first guide rail 12 is slidably connected to the slide groove 131;

[0093] The roller 16 is disposed between the first guide rail 12 and the wall of the sliding groove 131 .

[0094] In this embodiment, a pair of first guide rails 12 and first brackets 13 form a group of guide structures 31, and multiple groups of guide structures 31 are arranged between the mounting shell 11 and the mounting shell 11, and the multiple groups of guide structures 31 are arranged at intervals along the circumference of the mounting shell 11. In this way, the sliding of the mounting shell 11 can be limited and guided at multiple positions along the circumference of the mounting shell 11, so that the circumferential force of the mounting shell 11 is uniform, and the setting of multiple groups of guide structures 31 can limit the mounting shell 11 in both the circumferential and radial directions to prevent the mounting shell 11 from rotating or shaking, thereby improving the stability of the shell assembly 10 during the extension and retraction process.

[0095] Please refer to Figure 6 , Fig.13 and Fig.14 In some embodiments of the present application, the roller 16 is rotatably disposed on the bottom wall of the sliding groove 131 and is in rolling contact with the first guide rail 12 .

[0096] In this embodiment, the pulley 153 is fixed on the first bracket 13 to form the aforementioned pulley 153 structure, so that the roller 16 can roll on the guide rail surface of the first guide rail 12, and the first bracket 13 and the roller 16 can be fixedly connected first, and then the roller 16 assembly can be fixedly connected to the mounting shell 11, thereby improving the installation convenience of the roller 16 assembly.

[0097] Please refer to Figure 6 , Fig.10 and Fig.11 In some embodiments of the present application, the slide groove 131 has two groove side walls arranged opposite to each other, and both groove side walls are provided with rollers 16.

[0098] In this embodiment, the first guide rail 12 has a top surface and two side surfaces arranged on both sides of the top surface, and the corresponding slide groove 131 has a groove bottom wall and two groove side walls arranged oppositely. The cross-sections of the slide rail 3233 and the slide groove 131 can be rectangular, trapezoidal or other quadrilateral structures, which are not limited here. When the slide rail 3233 and the slide groove 131 are matched, the top surface of the slide rail 3233 is arranged opposite to the groove bottom wall of the slide groove 131, and each side surface of the slide rail 3233 is arranged opposite to a groove side wall of the slide groove 131. Rollers 16 are arranged on both groove side walls and the groove bottom wall, so that rollers 16 are provided on each surface of the first guide rail 12 and the first bracket 13 to reduce friction and improve the stability of the sliding match between the first bracket 13 and the first guide rail 12; in addition, the rollers 16 arranged on the two groove side walls can also cooperate with the first guide rail 12 to lock the two mounting shells 11 in the circumferential direction to prevent the two mounting shells 11 from rotating relative to each other, thereby improving the stability of the housing assembly 10 during the telescopic process.

[0099] Combined with reference Figure 3 and Figure 4In some embodiments of the present application, the two mutually nested mounting shells 11 are defined as an outer shell and an inner shell, and one end of the inner shell is inserted into the outer shell;

[0100] The first guide rail 12 is disposed on the inner side wall of the outer shell, and the first bracket 13 and the roller 16 are both disposed on one end of the inner shell inserted into the outer shell.

[0101] It can be understood that, in the two nested mounting shells 11, one mounting shell 11 is mounted on the outside of the other mounting shell 11, and the large shell can be mounted on the small shell from top to bottom, so that the large shell can be lifted and lowered relative to the small shell, or the small shell can be inserted into the large shell from top to bottom, so that the small shell can be lifted and lowered relative to the large shell, with the mounting shell 11 mounted on the outside being the outer shell and the mounting shell 11 located on the inside being the inner shell. In this embodiment, the first guide rail 12 is fixed to the inner wall of the outer shell, the first bracket 13 and the roller 16 are both arranged on the inner shell, and the first bracket 13 and the roller 16 are inserted into the outer shell along with the inner shell to cooperate with the first guide rail 12. In this way, when the outer shell and the inner shell slide and extend relative to each other, the first guide rail 12, the first bracket 13 and the roller 16 are always hidden on the inner side of the outer shell, avoiding the first guide rail 12, the first bracket 13 and the roller 16 from being exposed, thereby reducing the risk of damage to the first guide rail 12, the first bracket 13 and the roller 16, and also making the appearance of the heater 100 neat and integrated when extended.

[0102] The first bracket 13 and the roller 16 are arranged at one end of the inner shell which is inserted into the outer shell, so as to fully extend the sliding fitting distance between the outer shell and the inner shell, increase the stretching length of the outer shell and the inner shell, improve and lengthen the heat dissipation channel 113 of the heater 100, enhance the chimney effect, and improve the space heating effect.

[0103] Please refer to Figure 3 and Fig.10 In some embodiments of the present application, the housing assembly 10 includes at least three mounting shells 11 that are sequentially sleeved, and the three mounting shells 11 are defined as an outer mounting shell 11, a middle mounting shell 11, and an inner mounting shell 11 that are sequentially sleeved;

[0104] The first guide rail 12 and the first bracket 13 between the outer mounting shell 11 and the middle mounting shell 11 are the inner guide rail of the outer shell and the bracket of the middle shell, and the first guide rail 12 and the first bracket 13 between the middle mounting shell 11 and the inner mounting shell 11 are the inner guide rail of the middle shell and the bracket of the inner shell. One end of the inner guide rail of the middle shell protrudes from the middle mounting shell 11 and fixes the middle shell bracket.

[0105] In the technical scheme of the aforementioned embodiment, a first bracket 13 and a first guide rail 12 that cooperate with each other are arranged between any two adjacent mounting shells 11 in the shell assembly 10, a roller 16 is arranged in the slide groove 131 of the first bracket 13 to reduce friction, and the first bracket 13 is arranged at one end of the mounting shell 11 located on the inner side that is inserted into the outer mounting shell 11. In this embodiment, when the shell assembly 10 includes at least three mounting shells 11 that are sequentially sleeved, the three mounting shells 11 are defined as an outer mounting shell 11, a middle mounting shell 11 and an inner mounting shell 11 that are sequentially sleeved. It can be understood that the middle mounting shell 11 is the inner shell of the outer mounting shell 11, and the inner mounting shell 11 is the inner shell of the middle mounting shell 11. For the convenience of distinction, The first guide rail 12 provided on the inner wall of the outer mounting shell 11 is the inner guide rail of the outer shell, and the first bracket 13 provided at the end of the middle mounting shell 11 and slidingly matched with the inner guide rail of the outer shell is the middle shell bracket. The first guide rail 12 provided on the inner wall of the middle mounting shell 11 is the inner guide rail of the middle shell, and the first bracket 13 provided at the end of the inner mounting shell 11 and slidingly matched with the inner guide rail of the middle shell is the inner shell bracket; further, one end of the inner guide rail of the middle shell is protruding from the end of the middle shell to fix the middle shell bracket that slides with the inner guide rail of the outer shell, wherein the connection method between the middle shell bracket and the inner guide rail of the middle shell can be bolt connection, snap connection, bonding, magnetic connection, plug-in connection or a combination of any two or more connection methods, which is not limited here. Fixing the middle bracket by the middle inner guide rail in the middle mounting shell 11 can reduce the use of parts in the shell assembly 10 and improve the assembly convenience of the shell assembly 10.

[0106] It can be understood that for fixing the inner shell bracket to the inner mounting shell 11, the first guide rail 12 can be also set on the inner side wall of the inner mounting shell 11 as the inner guide rail of the inner shell, and the inner shell bracket can be fixed by using the inner guide rail of the inner shell. The inner shell bracket can also be directly connected to the inner mounting shell 11, or a fixing structure can be set on the inner mounting shell 11 to fix the inner shell bracket. This is not limited here.

[0107] In some embodiments of the present application, a plug-in portion 133 is protruded from one side of the middle bracket facing the inner guide rail of the middle shell, and the plug-in portion 133 is plugged into the inner guide rail of the middle shell.

[0108] In this embodiment, the middle bracket and the inner guide rail of the middle shell are plugged together. At this time, the cross section of the inner guide rail of the middle shell used for connecting with the middle bracket is roughly an open-loop structure with one side open. A plug-in space is formed in the inner guide rail of the middle shell. The middle bracket is provided with a plug-in portion 133 on one side facing the inner guide rail of the middle shell. The plug-in portion 133 is inserted into the plug-in space of the inner guide rail of the middle shell. Such a configuration can increase the connection area between the middle bracket and the inner guide rail of the middle shell, and improve the connection strength between the middle bracket and the inner guide rail of the middle shell. Of course, in addition to plug-in matching, the middle bracket and the inner guide rail bracket of the middle shell can also add other connection structures, such as further connecting the inner guide rail of the middle shell and the plug-in portion 133 through bolt connection, snap connection, bonding or magnetic connection, so as to improve the connection strength between the middle bracket and the inner guide rail of the middle shell.

[0109] Please refer to Figure 2 and Figure 3 In some embodiments of the present application, the shell assembly 10 also includes an auxiliary pulley structure 15, the auxiliary pulley structure 15 includes a second bracket 151 and a pulley 153, the second bracket 151 is fixedly connected to the first guide rail 12, and the pulley 153 is rotatably disposed on the second bracket 151 and rollingly abuts against the outer wall of the inner shell.

[0110] In this embodiment, an auxiliary pulley structure 15 is arranged between the surface of the first guide rail 12 and the outer wall surface of the inner shell, wherein the auxiliary pulley structure 15 includes a second bracket 151 and a pulley 153, the second bracket 151 is covered on the first guide rail 12, and the pulley 153 is rotatably arranged on the second bracket 151 and rolls against the outer wall surface of the inner shell. At this time, when the inner shell and the outer shell slide relative to each other, the pulley 153 rolls along the outer wall of the second mounting shell 11, so that the first guide rail 12 and the inner shell are provided with two support points of the roller 16 and the slide in the length direction of the first guide rail 12, so that the inner shell has stable support in the length direction of the first guide rail 12 and is stably limited in the outer shell, avoiding the inner shell from being deflected in the height direction when there is only one support point of the roller 16, thereby improving the stability of the lifting process of the heater 100.

[0111] Please refer to Figure 2 and Figure 3 , Fig.19 In some embodiments of the present application, an opening for passing the inner shell is provided at one end of the outer shell, and the auxiliary pulley structure 15 is provided at one end of the first guide rail 12 close to the opening, and is arranged opposite to the first bracket 13, and moves closer to or away from each other when the two mounting shells 11 slide relative to each other;

[0112] The first bracket 13 and the auxiliary pulley structure 15 can abut against each other, so that the two mounting shells 11 are limited and locked in the extension direction and can rise synchronously.

[0113] In this embodiment, the auxiliary pulley structure 15 is arranged on the surface of the first guide rail 12 and is located at one end of the first guide rail 12 close to the opening of the outer shell. At this time, in the length direction of the first guide rail 12, the auxiliary pulley structure 15 is arranged opposite to the first bracket 13, so that when the inner shell and the outer shell slide relative to each other, the auxiliary pulley structure 15 and the first bracket 13 are relatively close to or away from each other; wherein, when the shell assembly 10 is extended, the inner shell and the outer shell slide relative to each other so that the inner shell slides toward the outside of the outer shell. During this process, the auxiliary pulley structure 15 and the first bracket 13 are relatively close to each other until they abut against each other. At this time, the inner shell and the outer shell are relatively extended to the extreme position, and the inner shell and the outer shell no longer slide relative to each other in the extension direction. At this time, if one of the inner shell or the outer shell continues to be subjected to an upward external force, the inner shell and the outer shell will rise synchronously, that is, the two mounting shells 11 can be raised synchronously by pulling one of the mounting shells 11.

[0114] Based on the above embodiments, in some embodiments, when the shell assembly 10 includes at least three mutually nested mounting shells 11, an auxiliary pulley structure 15 and a first bracket 13 are provided between any two adjacent mounting shells 11; the mounting shell 11 located at the bottom is defined as the bottom shell, the mounting shell 11 that can be extended to the highest position is defined as the upper shell, and each mounting shell 11 sleeved between the bottom shell and the upper shell is defined as a middle shell. At this time, the upper shell can be pulled to make the upper shell rise relative to the bottom shell and the middle shell, and then when the auxiliary pulley structure 15 and the first bracket 13 between the upper shell and the adjacent middle shell abut against each other, continuing to pull the upper shell will carry the middle shell Continue to rise, and then continue to pull the upper shell to make each middle shell rise in turn, until the auxiliary pulley structure 15 and the first bracket 13 between the bottom shell and the middle shell adjacent to the bottom shell abut against each other. At this time, the shell assembly 10 and the heater 100 are fully extended into place; it can be understood that with such a configuration, the heater 100 only needs to set up a telescopic assembly 30 to be connected to the upper shell for driving the upper shell to rise and fall, and there is no need to set up other telescopic assemblies 30 or to make the same telescopic assembly 30 connected to each middle shell, which simplifies the structure of the heater 100, reduces the use of components in the heater 100, and improves the convenience of disassembly and maintenance of the heater 100.

[0115] Please refer to Fig.10 and Fig.12 In some embodiments of the present application, the second bracket 151 has two side plates arranged opposite to each other and a top plate located between the two side plates, the pulley 153 is rotatably disposed on the top plate, and the first guide rail 12 is clamped between the two side plates and the top plate.

[0116] In this embodiment, the first guide rail 12 has a top surface and two side surfaces arranged on both sides of the top surface. Correspondingly, the second bracket 151 includes a top plate and two side plates located on both sides of the top plate. The top plate is used to install the pulley 153. When the second bracket 151 is installed on the first guide rail 12, the top plate is arranged opposite to the top surface of the first guide rail 12, and each side plate is arranged opposite to a side surface of the first slide rail 3233, so that the first guide rail 12 is clamped in the second bracket 151. At the same time, the side plates of the second bracket 151 A clamping structure of a clamping portion 1511 and a clamping hole 121 is provided on the side surface of the first guide rail 12 to improve the connection strength between the second bracket 151 and the first guide rail 12, wherein the clamping portion 1511 can be provided on the side plate of the second bracket 151 to be clamped in the clamping hole 121 on the side surface of the first guide rail 12; the clamping portion 1511 can also be protruded on the side surface of the first guide rail 12 to be clamped and matched with the clamping hole 121 opened on the inner wall of the side plate of the second bracket 151, which is not limited here.

[0117] Please refer to Fig.13 and Fig.15 In some embodiments of the present application, the first guide rail 12 is recessed with a mounting groove 122 , and the second bracket 151 is disposed in the mounting groove 122 .

[0118] In this embodiment, a mounting groove 122 is recessed on the top surface of the first guide rail 12, so that part of the second bracket 151 is embedded in the mounting groove 122, and the pulley 153 is protruded from the first guide rail 12, so that the pulley 153 rolls and abuts against the inner side wall of the mounting shell 11; the provision of the mounting groove 122 is conducive to improving the connection strength between the second bracket 151 and the first guide rail 12; further, in some embodiments, the side surface of the second bracket 151 is provided with one of the clamping portion 1511 and the clamping hole 121, and the side wall of the mounting groove 122 is provided with the other of the clamping hole 121 and the clamping portion 1511. When the second bracket 151 is embedded in the mounting groove 122, the clamping portion 1511 is clamped in the clamping hole 121 to prevent the second bracket 151 from escaping from the mounting groove 122, thereby improving the connection strength between the second bracket 151 and the first guide rail 12.

[0119] Please refer to Fig. 9 and Fig.16 In some embodiments of the present application, the housing assembly 10 further includes an anti-rotation wheel structure 17, the anti-rotation wheel structure 17 includes a second guide rail 171, a third bracket 172 and an anti-rotation wheel 173, the second guide rail 171 and the third bracket 172 are respectively arranged on the side walls of the two mutually nested mounting shells 11;

[0120] The second guide rail 171 is recessed with a limiting groove 1711 . The anti-rotation wheel 173 is rotatably disposed on the third bracket 172 and is located in the limiting groove 1711 and rollably abuts against the groove side wall of the limiting groove 1711 .

[0121] In this embodiment, an anti-rotation wheel structure 17 is further provided between the two mutually nested mounting shells 11, and the anti-rotation wheel structure 17 includes a second guide rail 171, a third bracket 172 and an anti-rotation wheel 173. The second guide rail 171 is provided on the side wall of one of the mounting shells 11, and extends along the telescopic direction of the housing assembly 10, and is provided with a limiting groove 1711 toward the side wall of the other mounting shell 11, and the limiting groove 1711 has two groove side walls arranged oppositely, and the shape of the third bracket 172 is roughly the same as that of the limiting groove 1711. The third bracket 172 is adapted to be adapted, and is located in the limiting groove 1711 and spaced apart from the groove wall of the limiting groove 1711. A rotatable anti-rotation wheel 173 is provided on one side of the groove side wall of the third bracket 172 facing the limiting groove 1711, and the anti-rotation wheel 173 abuts against the groove side wall of the limiting groove 1711. Such an arrangement allows the two mutually nested mounting shells 11 to be circumferentially limited by the anti-rotation wheel structure 17, thereby avoiding relative rotation of the two mounting shells 11 and improving the stability of the shell assembly 10 during the telescopic process.

[0122] In some embodiments, of the two mutually fitting installation shells 11, the installation shell 11 sleeved on the outside is the outer shell, and the installation shell 11 located on the inside is the inner shell. The second guide rail 171 is fixed to the inner side wall of the outer shell, and the third bracket 172 and the anti-rotation wheel 173 are both arranged on the inner shell, and the third bracket 172 and the anti-rotation wheel 173 are inserted into the outer shell with the inner shell to cooperate with the second guide rail 171. In this way, when the outer shell and the inner shell slide and extend relative to each other, the second guide rail 171, the third bracket 172 and the anti-rotation wheel 173 are always hidden inside the outer shell, avoiding the exposure of the second guide rail 171, the third bracket 172 and the anti-rotation wheel 173, thereby reducing the risk of damage to the second guide rail 171, the third bracket 172 and the anti-rotation wheel 173, and also making the appearance of the heater 100 neat and integrated when extended.

[0123] Please refer to Figure 1 and Figure 2 In some embodiments of the present application, at least two mounting shells 11 of the shell assembly 10 include a lower shell 111 located at the bottom and at least one sliding shell 112 that can be lifted and lowered relative to the lower shell 111;

[0124] The heater 100 further includes a telescopic assembly 30 , which is transmission-connected to the sliding housing 112 . The telescopic assembly 30 supports the sliding housing 112 and drives the sliding housing 112 to rise and fall relative to the lower housing 111 .

[0125] In the present embodiment, the telescopic assembly 30 is utilized to drive the shell assembly 10 to telescope, and serves as a supporting structure for each sliding shell 112 when extended. There is no need for the mounting shell 11 located below to support the mounting shell 11 above, so that there is no need to set a connection relationship between adjacent mounting shells 11 and the contact can be reduced, thereby reducing the friction between the two adjacent mounting shells 11 during the telescopic process of the shell assembly 10, and making the telescopic movement of the shell assembly 10 smoother.

[0126] Among them, the telescopic assembly 30 can be a scissor-type telescopic structure, which is composed of at least one scissor-type unit. The scissor-type unit is composed of two mutually crossed and hinged rods. When the two rods rotate relative to each other, the height of the scissor-type unit can be adjusted; the bottom of the scissor-type telescopic structure can be connected to the lower shell 111, and the upper end can be connected to the telescopic shell; when the shell assembly 10 is provided with at least two sliding shells 112, the scissor-type telescopic structure can include at least two pairs of scissor-type units arranged along the telescopic direction, and the two rods of the adjacent two pairs of scissor-type units are respectively hinged, so that the adjacent two mounting shells 11 are connected by at least one pair of scissor-type units, so that the shell assembly 10 can be driven to telescope when the scissor-type telescopic structure is telescoped. The telescopic assembly 30 can also be a fixed member 311 and at least one sliding member 312 set as a sliding connection in the following embodiment. The fixed member 311 and the sliding member 312 can both be structures such as sliding sleeve rods and telescopic bars. The specific implementation method will not be repeated here.

[0127] It should also be noted that the telescopic assembly 30 can be electrically driven, pneumatically driven, hydraulically driven or manually operated to extend and retract. For example, the scissors-type telescopic structure can be electrically driven to rotate the two rods of the same scissors-type unit relative to each other or to slide the ends of the rods, or the scissors-type telescopic structure can be manually driven to extend and retract. When a sliding slider 312 is used, the slider 312 and its adjacent fixed member 311 or slider 312 can be threadedly connected or screw-connected. Alternatively, the cylinder body and the piston of the air cylinder or the hydraulic cylinder are respectively connected to the slider 312 and the fixed member 311 or slider 312 adjacent to the slider 312, and the piston is extended and retracted through pneumatic or hydraulic control so that the two sliders 312 slide relative to each other. Of course, the user can also directly pull the slider 312 to slide relative to each other to achieve the extension and retraction of the telescopic assembly 30, which is not limited here. It can be understood that when driven by a motor 371 or a cylinder, a liquid cylinder, etc., the driving component 37 such as the motor 371, the cylinder or the liquid cylinder itself has a mechanical self-locking form, which can keep the shell assembly 10 in the desired state when it is not needed. Of course, a locking structure 32 can be added as shown in the following embodiment to prevent the shell assembly 10 from automatically falling and retracting under the action of gravity when the user lets go.

[0128] Please refer to Figure 1 and Figure 2 In some embodiments of the present application, the telescopic component 30 is disposed in the heat dissipation channel 113 .

[0129] In this embodiment, the telescopic component 30 is arranged in the shell component 10. Such a configuration can make full use of the internal space of the shell component 10, avoid the telescopic component 30 being exposed on the outside of the shell component 10 and easily damaged, and cause the volume of the heater 100 to increase, affecting the convenience of storage and use of the heater 100.

[0130] Please refer to Fig. 20 and Fig.21 In some embodiments of the present application, the telescopic assembly 30 includes a fixed member 311 and at least one sliding member 312 , and the fixed member 311 and the sliding member 312 and two adjacent sliding members 312 are slidably connected along the telescopic direction.

[0131] In this embodiment, the telescopic structure includes a fixed member 311 and at least one sliding member 312. The sliding member 312 can be a sliding strip, a sliding sleeve rod or a sliding slat, etc., which are not limited here, so that the sliding member 312 is slidably connected with the adjacent fixed member 311 or sliding member 312, so that when the sliding member 312 of the telescopic assembly 30 slides relative to the fixed member 311, the housing assembly 10 is telescopic. In addition, the sliding member 312 and the adjacent fixed member 311 or sliding member 312 can be threaded or screwed; or the cylinder body and piston of the air cylinder or the hydraulic cylinder are respectively connected to the sliding member 312 and the fixed member 311 or sliding member 312 adjacent to the sliding member 312, and the piston is extended and retracted by pneumatic or hydraulic control so that the two sliding members 312 slide relative to each other; of course, the user can also directly pull the sliding member 312 to slide relative to each other to achieve the telescopic assembly 30, which is not limited here. It can be understood that when driven by a motor 371 or a cylinder, a liquid cylinder, etc., the driving component 37 such as the motor 371, the cylinder or the liquid cylinder itself has a mechanical self-locking form, which can keep the shell assembly 10 in the desired state when it is not needed. Of course, a locking structure 32 can be added as shown in the following embodiment to prevent the shell assembly 10 from automatically falling and retracting under the action of gravity when the user lets go.

[0132] Please refer to Fig.29 In some embodiments of the present application, the telescopic assembly 30 further includes a connecting member 34, which extends from the sliding member 312 to the inner wall of the sliding housing 112 and is respectively connected to the sliding member 312 and the sliding housing 112.

[0133] In this embodiment, the telescopic assembly 30 includes a connecting member 34 for connecting the sliding member 312 and the sliding shell 112. The connecting member 34 extends radially along the mounting shell 11. The two ends of the connecting member 34 are respectively connected to the inner wall of the mounting shell 11 and the sliding member 312, so that the sliding member 312 can drive the mounting shell 11 connected thereto to slide together.

[0134] Please refer to Fig.29 In some embodiments of the present application, a fixing portion 341 is provided at one end of the connecting member 34 close to the inner wall of the sliding housing 112 . The fixing portion 341 has a mounting surface, and the mounting surface is attached to the inner wall of the sliding housing 112 .

[0135] In this embodiment, the connecting member 34 is roughly a slat-shaped structure, and one end of the connecting member 34 facing the inner wall of the sliding shell 112 is bent to form a fixing portion 341 arranged opposite to the inner wall of the sliding shell 112, and the fixing portion 341 is attached to the inner wall of the sliding shell 112 so that the fixing portion 341 is connected to the inner wall of the sliding shell 112. Such a configuration increases the connection and contact area between the connecting member 34 and the sliding shell 112, improves the connection strength between the connecting member 34 and the sliding shell 112, avoids the connecting member 34 and the sliding shell 112 from falling off during the process of the connecting member 34 driving the sliding shell 112 to slide, and causes the sliding shell 112 to fall, thereby improving the overall structural stability and the safety of the telescopic process.

[0136] Please refer to Fig. 22 In some embodiments of the present application, the sliding member 312 is a sliding sleeve rod, and two adjacent sliding sleeve rods are fitted into each other.

[0137] In this embodiment, the sliding member 312 of the telescopic assembly 30 is configured as a hollow sliding sleeve rod, and when the sliding member 312 is assembled, two adjacent sliding sleeve rods are mutually fitted, so that the contact area between the two adjacent sliding members 312 is increased, thereby improving the structural strength and sliding process stability of the telescopic assembly 30. The sliding sleeve rod may be a polygon, a circle, or other morphological structures, which are not limited here.

[0138] Please refer to Fig. 20 and Fig.21 In some embodiments of the present application, the telescopic assembly 30 also includes a locking structure 32. The locking structure 32 is arranged between the fixed member 311 and the sliding member 312 or any two sliding members 312 that are fitted together. The locking structure 32 can lock the sliding member 312 when the sliding member 312 is in a retracted or extended state. At this time, the telescopic assembly 30 can also be used as a supporting assembly to support the shell assembly 10 so that the shell assembly 10 maintains the currently required structural form.

[0139] The locking structure 32 may be, but is not limited to, a magnetic structure, a snap-fit ​​structure, a threaded structure, or an elastic connector 321 structure in the following embodiments, which is not specifically limited here.

[0140] Please refer to Fig. 20 and Fig.21In some embodiments of the present application, the sliding structure in the telescopic assembly 30 and the adjacent fixing member 311 or sliding member are two sliding structures that can slide relative to each other, and the locking structure 32 includes a plug-in member 321 and an elastic member 322, and the plug-in member 321 and the elastic member 322 are arranged on one of the sliding structures, and the other sliding structure is provided with at least two limiting holes arranged at intervals along the length direction of the sliding structure;

[0141] The plug-in component 321 can be retracted. When the plug-in component 321 is arranged relative to any limiting hole, the elastic component 322 can drive the plug-in component 321 to be inserted into the limiting hole so that the two sliding sleeve rods are locked.

[0142] In this embodiment, the locking structure 32 includes a plug-in component 321 and an elastic component 322. The plug-in component 321 is telescopically arranged on one of the sliding structure walls, and a limiting hole is opened on the side wall of the other sliding structure. When the plug-in component 321 is not aligned with the limiting hole, the plug-in component 321 retracts under the support of the inner wall of the other sliding sleeve rod. When the plug-in component 321 is aligned with the limiting hole, the plug-in component 321 extends outward under the drive of the elastic component 322 and is inserted in the limiting hole, so that the two sliding structures are locked. Among them, at least two limiting holes are opened on the sliding structure along the length direction of the sliding structure. It can be that only two limiting holes are opened to correspond to the contraction state and the extension state of the two sliding structures respectively, or three or more limiting holes are opened to lock the two sliding structures when the two sliding structures are extended to different lengths. It is not limited here.

[0143] Please refer to Fig. 20 and Fig.21 In some embodiments of the present application, the locking structure 32 is disposed in the inner sliding sleeve rod, and the connector 321 is penetrated through the side wall of the sliding sleeve rod.

[0144] In this embodiment, the locking structure 32 is located in the inner sliding sleeve rod of the two sliding sleeve rods that are fitted together. This configuration utilizes the internal space of the inner sliding sleeve rod and avoids an excessively large gap between the two sliding sleeve rods to accommodate the locking structure 32. At the same time, the locking structure 32 is protected to avoid exposure of the locking structure 32, thereby reducing the risk of damage to the locking structure 32.

[0145] In addition, in this embodiment, a section of the surface of the connector 321 used for inserting into the limiting hole can be a spherical surface or an inclined surface 412, similar to the limiting structure of a telescopic umbrella. At this time, only a suitable external force needs to be applied to make the connector 321 withdraw from the limiting hole under the guidance of the spherical surface or the inclined surface 412, so that the two sliding sleeve rods that fit each other can be freely telescopic to adjust the length; the telescopic structure of the connector 321 can use a spring 383 as the elastic member 322, and the spring 383 is arranged on the back side of the connector 321; it can also be made into a bow structure similar to the button 327 in an umbrella, that is, using an elastic cantilever as an elastic member. Part 322, the elastic cantilever extends along the length direction of the sliding sleeve rod, and one end of the elastic cantilever is connected to the inner wall of the sliding sleeve rod, so that the plug-in component 321 is fixed on the elastic cantilever. In some embodiments, a button 327 is set at the other end of the elastic cantilever, and the button 327 protrudes from the side wall of the sliding sleeve rod. At this time, pressing the button 327 can make the elastic cantilever retreat and drive the plug-in component 321 to retract. When the button 327 is released, the elastic cantilever automatically rebounds and resets. The telescopic structure of the plug-in component 321 can also be a matching structure using a guide member 323 and a push member 324 in the following embodiments, which will not be repeated here.

[0146] Please refer to Fig. 20 and Fig.21 In some embodiments of the present application, the telescopic assembly 30 is provided with at least three sliding sleeve rods which fit into each other. When the telescopic assembly 30 is retracted, the plug-in piece 321 of the locking structure 32 in the innermost sliding sleeve rod is arranged relative to the limiting holes on the other sliding sleeve rods and is inserted into the limiting holes of the other sliding sleeve rods.

[0147] In this embodiment, the telescopic assembly 30 is defined to have at least three sliding sleeve rods, and a locking structure 32 is provided in the innermost sliding sleeve rod. When the telescopic assembly 30 is fully retracted, the other sliding sleeve rods have correspondingly arranged limiting holes. At this time, the connector 321 in the locking structure 32 of the innermost sliding sleeve rod is inserted into the limiting holes of the other sliding sleeve rods to lock the sliding sleeve rods of the telescopic assembly 30 with each other.

[0148] Please refer to Figure 20 to Figure 25 In some embodiments of the present application, the locking structure 32 further includes:

[0149] A guide member 323, which is disposed in the sliding sleeve and can translate along the telescopic direction of the plug-in member 321, the plug-in member 321 and the elastic member 322 are respectively disposed at two ends of the guide member 323, and the guide member 323 is provided with a guide inclined surface 3232; and

[0150] The push member 324 is movably disposed in the sliding sleeve rod and contacts the guide inclined surface 3232. When the push member 324 descends, it moves along the guide inclined surface 3232 so that the guide member 323 drives the connector 321 to retract.

[0151] In this embodiment, the locking structure 32 is further provided with a guide member 323 and a push member 324. The guide member 323 is arranged in the sliding sleeve rod in a translatable manner in the telescopic direction of the plug-in member 321, and the elastic member 322 and the plug-in member 321 are respectively arranged on both sides of the translation direction of the guide member 323. The plug-in member 321 can be arranged in an integral manner with the guide member 323, or can be only connected to the guide member 323, and it is only necessary to make the plug-in member 321 move with the guide member 323; at the same time, a guide inclined surface 3232 is arranged on the guide member 323, and the guide inclined surface 3232 extends from the guide column to the elastic member 322 side from bottom to top, and is arranged on the sliding sleeve rod. A pusher 324 that can be lifted and lowered is provided inside. The pusher 324 is provided above the guide member 323 and has a pusher portion 3241 corresponding to the guide slope 3232. The pusher portion 3241 contacts the guide slope 3232. When the pusher 324 is pressed down, the pusher portion 3241 pushes the guide slope 3232, so that the guide member 323 moves toward the elastic member 322, so that the plug-in member 321 retracts and the elastic member 322 contracts. When the pusher portion 3241 moves upward, the guide member 323 moves toward the plug-in member 321 under the elastic restoring force of the elastic member 322, so that the plug-in member 321 is ejected. The lifting and lowering of the pusher 324 can be driven by a drive member 37 such as a motor 371 using a transmission structure such as a screw drive or a gear rack drive, or can be pushed by a push rod 325 in the following embodiment by manpower, which is not limited here.

[0152] It should be noted that, in the present embodiment, the guide member 323 can be translationally arranged in the sliding sleeve rod, and a support plate 18 arranged in a transverse partition can be arranged in the sliding sleeve rod, for example, a bottom plate is arranged at the bottom end of the sliding sleeve rod as the support plate 18, so that the guide member 323 can be translationally arranged on the support plate 18; a slide rail 3233 or a guide groove 3291 extending along the translation direction can also be arranged on the inner side wall of the sliding sleeve rod, and correspondingly, a guide groove 3291 or a slide rail 3233 is arranged on the side wall of the guide member 323, so that the slide rail 3233 is inserted in the guide groove 3291, which is used to support the guide member 323 and guide the translation of the guide member 323; of course, the support plate 18 and the slide rail 3233 and guide groove 3291 structure can be arranged at the same time. In addition, when the support plate 18 is arranged, the slide rail 3233 and the guide groove 3291 can be correspondingly arranged on the support plate 18, which is not limited here.

[0153] Please refer to Figure 20 to Figure 25 In some embodiments of the present application, a guide portion 3231 is convexly provided on the side of the guide member 323 , and the guide portion 3231 is formed with a guide inclined surface 3232 .

[0154] In this embodiment, the guide member 323 is defined to have two ends facing the elastic member 322 and the connector 321 respectively, and two side surfaces disposed back to back between the two ends. A guide portion 3231 is disposed on at least one side surface to establish a guide slope 3232. Compared with disposing the guide slope 3232 at the top of the guide member 323, such a configuration can reduce the height of the guide member 323, thereby reducing the overall height of the telescopic assembly 30 and reducing the space occupied by the heater 100.

[0155] In some embodiments, two oppositely disposed side surfaces of the guide member 323 are provided with guide portions 3231 convexly, and each guide portion 3231 is formed with a guide inclined surface 3232;

[0156] The pushing member 324 has two pushing portions 3241 spaced apart from each other. Each pushing portion 3241 is disposed opposite to a guiding inclined surface 3232 .

[0157] Such an arrangement can increase the contact area between the pushing member 324 and the guiding member 323 , and make the guiding member 323 evenly stressed, thereby improving the stability of the guiding member 323 during the translation process of being pushed.

[0158] Please refer to Fig.24 and Fig.25 In some embodiments of the present application, the push member 324 is provided with one of the guide groove 36 and the track, and the inner wall of the sliding sleeve is provided with the other of the track and the guide groove 36. Both the track and the guide groove 36 extend along the length direction of the sliding sleeve, and the track is inserted into the guide groove 36.

[0159] In this way, the cooperation between the track and the guide groove 36 can be used to improve the stability of the pushing member 324 during the lifting process in the sliding sleeve rod, so that the pushing member 324 accurately abuts against the guide slope 3232 of the guide member 323. In some embodiments, the pushing member 324 has two pushing parts 3241 arranged at intervals. In this case, the guide groove 36 can be formed between the two pushing parts 3241, and the track is protruded inside the sliding sleeve rod.

[0160] Please refer to Figure 20 to Figure 23 In some embodiments of the present application, the locking structure 32 also includes a push rod 325, which can be raised and lowered and is inserted into the innermost sliding sleeve rod of the telescopic component 30, and is arranged opposite to the pushing member 324 in the sliding sleeve rod. The push rod 325 is arranged to protrude from the top of the shell component 10.

[0161] In this embodiment, of the two sliding sleeve rods that fit each other, the sliding sleeve rod located on the inner side is lifted and lowered from the top opening of the sliding sleeve rod on the outer side, and the locking structure 32 is arranged in the sliding sleeve rod located on the inner side. The locking structure 32 also includes a push rod 325 that is liftably arranged in the innermost sliding sleeve rod. The push rod 325 is used to push the pushing member 324. At this time, the push rod 325 can be connected to the pushing member 324 so that the pushing member 324 can be lifted and lowered with the push rod 325, or the push rod 325 and the pushing member 324 can be separately arranged to drive the pushing member 324 to be pressed down when the push rod 325 is pressed down. When the push rod 325 rises, the pushing member 324 is reset along with the elastic reset member 326 under the action of the elastic member 322.

[0162] In some embodiments, the telescopic assembly 30 includes at least three sliding sleeve rods that are sequentially fitted. At this time, among the three adjacent sliding sleeve rods, the push rod 325 is set in the innermost sliding sleeve rod, which is used to push the pushing member 324 in the innermost sliding sleeve rod to lock or unlock the innermost sliding sleeve rod with the middle sliding sleeve rod; at this time, the innermost sliding sleeve rod can serve as the push rod 325 on the inner side of the middle sliding sleeve rod to push the pushing member 324 in the middle sliding sleeve rod to lock or unlock the middle sliding sleeve rod with the outermost sliding sleeve rod. With such arrangement, when the heater 100 needs to be unfolded, the push rod 325 is pressed down to unlock the innermost sliding sleeve rod and the middle sliding sleeve rod, thereby causing the innermost sliding sleeve rod and the top mounting shell 11 to rise. When the innermost sliding sleeve rod rises to a position relative to the middle sliding sleeve rod, the push rod 325 is released to lock the innermost sliding sleeve rod with the middle sliding sleeve rod, and the innermost sliding sleeve rod is continuously pulled to drive the middle sliding sleeve rod to rise, and the pressing of the push piece 324 in the middle sliding sleeve rod is released until the middle sliding sleeve rod is relative to the outer sliding sleeve rod. When the sliding sleeve rises to its position, the connector 321 in the middle sliding sleeve is pushed out and locked by the elastic member 322 to lock the middle sliding sleeve and the outer sliding sleeve; when the heater 100 needs to be retracted, the push rod 325 is pressed down to unlock the innermost sliding sleeve and the middle sliding sleeve, and then the innermost sliding sleeve is lowered relative to the middle sliding sleeve until it presses against the pushing member 324 in the middle sliding sleeve, so that the middle sliding sleeve and the outer sliding sleeve are unlocked, and then the middle sliding sleeve is pressed down together until it drops to its position.

[0163] It can be understood that when the telescopic assembly 30 has four or more sliding sleeve rods, the operation method is similar and will not be described in detail here.

[0164] Please refer to Figure 20 to Figure 23 In some embodiments of the present application, the locking structure 32 further includes an elastic reset member 326, which is transmission-connected to the push rod 325 so that the push rod 325 has an upward tendency.

[0165] In this embodiment, the locking structure 32 also includes an elastic reset member 326 that is transmission-connected to the push rod 325. The elastic reset member 326 can be a magnetic member, so that when the pressure on the push rod 325 is released, the push rod 325 can be driven to rise and reset by magnetic force, thereby releasing the pressure on the push member 324; the elastic reset member 326 can also be a spring 383, etc. For example, a limiting portion 35 is provided on the outer wall of the part of the push rod 325 protruding from the top of the shell assembly 10, so that the spring 383 is clamped between the limiting portion 35 and the top surface of the shell assembly 10. When the pressure on the push rod 325 is released, the elastic force of the spring 383 is used to make the push rod 325 rise and reset; in some embodiments, the top of the push rod 325 A button is provided on the part, and the cross-section of the button is larger than the cross-section of the push rod 325. At this time, the button serves as a pressing part and a limiting part 35, so that the spring 383 is arranged between the button and the top of the shell assembly 10; of course, a capping piece 328 can also be provided on the top of the innermost sliding sleeve rod, and the capping piece 328 is connected to the shell assembly 10, which is convenient for fixing the telescopic assembly 30 and the shell assembly 10, improving the connection area and the connection strength, so that the push rod 325 is passed through the capping piece 328. At this time, the spring 383 can be arranged between the button and the capping piece 328, so that the push rod 325 and the spring 383 can be disassembled and assembled together when disassembling the locking structure 32 or the lifting group, thereby improving the convenience of disassembly and assembly.

[0166] In addition, the elastic reset member 326 can also be a combination of any two or more reset structures, which is not limited here; the setting of the elastic reset member 326 can eliminate the need for the user to automatically pull up the push rod 325 to release its pressure on the push member 324. When it is necessary to lock the lifting structure and the heater 100, it is only necessary to release the push rod 325, thereby improving the convenience of using the heater 100.

[0167] Please refer to Fig.24 and Fig.25 In some embodiments of the present application, a support surface is provided at the bottom of the inner sliding sleeve rod, and the guide member 323 is provided on the support surface in a translationally movable manner;

[0168] The support surface is provided with one of the guide groove 3291 and the slide rail 3233, and the bottom of the guide member 323 is provided with the other of the guide groove 3291 and the slide rail 3233. Both the guide groove 3291 and the slide rail 3233 extend along the translation direction of the guide member 323, and the slide rail 3233 is inserted into the guide groove 3291.

[0169] In this embodiment, a slide rail 3233 and a guide groove 3291 structure are provided between the guide member 323 and the supporting surface of the sliding sleeve rod, so as to guide and limit the translation direction of the guide member 323, so that the translation process of the guide member 323 is smoother.

[0170] Please refer to Fig.24 and Fig.25In some embodiments, a mounting seat 329 is provided at the bottom of the inner sliding sleeve rod, the mounting seat 329 is connected to the interior of the sliding sleeve rod, a support surface is formed inside the mounting seat 329, a side of the mounting seat 329 is provided with an escape opening, the connector 321, the guide member 323 and the elastic member 322 are all arranged in the mounting seat 329, and the connector 321 can be extended and retracted in and out of the escape opening.

[0171] In this embodiment, a mounting seat 329 for mounting the guide member 323, the plug-in member 321 and the elastic member 322 is provided at the bottom of the sliding sleeve rod, and a connecting portion is convexly provided on the top of the mounting seat 329, so that the connecting portion is inserted into the sliding sleeve rod, so that the mounting seat 329 is connected to the sliding sleeve rod and communicated with the sliding sleeve rod, and at this time, the inner bottom surface of the mounting seat 329 serves as a supporting surface of the guide member 323 for mounting the guide member 323. In this embodiment, the guide member 323 and the like are mounted on the mounting seat 329, and the guide member 323 and the like can be disassembled and assembled only by removing the mounting seat 329, which facilitates the disassembly and assembly of the guide member 323 and the like, and improves the convenience of disassembly and assembly.

[0172] In some embodiments, a guide structure of a guide groove 3291 and a slide rail 3233 is also provided between the inner top surface of the mounting seat 329 and the guide member 323 to further improve the connection strength between the guide member 323 and the mounting seat 329 and the translational stability of the guide member 323.

[0173] In some embodiments of the present application, part of the mounting seat 329 is inserted into the sliding sleeve rod, a mounting hole is provided on the side wall of the mounting seat 329, a connecting hole is provided on the side wall of the sliding sleeve rod and is arranged opposite to the mounting hole, and the telescopic assembly 30 also includes a locking member 33, the locking member 33 is inserted into the connecting hole and the mounting hole to connect the mounting seat 329 and the sliding sleeve rod to prevent the mounting seat 329 from falling out of the sliding sleeve rod.

[0174] Among them, the locking member 33 can be a bolt, a pin, etc., or it can be a clamping structure. The clamping structure has two clamping arms arranged opposite to each other, and the clamping arms are convexly provided with a locking portion. When the clamping structure is clamped on the sliding sleeve rod, the clamping portion is inserted into the connecting hole and the mounting hole. In this way, the clamping force of the clamping structure is used to prevent the clamping portion from escaping from the connecting hole and the mounting hole. The connection stability is high, the structure is simple, and it is easy to disassemble and assemble.

[0175] Please refer to Fig.26 and Fig. 27 In some embodiments of the present application, the top end of the telescopic assembly 30 passes through the top wall of the shell assembly 10 and protrudes from the shell assembly 10.

[0176] In this embodiment, one end of the telescopic component 30 protrudes from the top of the shell component 10, so that the user can grab the telescopic component 30 to extend and retract the telescopic component 30 and drive the shell component 10 to extend and retract, thereby improving the convenience of using the heater 100.

[0177] Furthermore, in some embodiments, one end of the telescopic component 30 protruding from the shell component 10 is connected to a handle 374 provided on the top sliding shell 112 of the shell component 10. With such a configuration, a user can hold the handle 374 to stretch or press the shell component 10 and the telescopic component 30 to extend or retract the shell component 10 and the telescopic component 30, thereby improving the ease of use of the heater 100.

[0178] In some embodiments, the telescopic assembly 30 is defined as a fixed member 311 located at the bottom and connected to the bottom mounting shell 11, so that the sliding member 312 is slidably connected to the fixed member 311. When two or more sliding members 312 are provided, the sliding members 312 can be slidably connected to each other, so that the telescopic assembly 30 can be telescopically arranged. At this time, the sliding member 312 that can be extended to the highest position in the telescopic assembly 30 is connected to any sliding shell 112 that can be raised and lowered in the shell assembly 10. When the telescopic assembly 30 is extended and retracted, the sliding shell 112 connected to the sliding member 312 is driven to rise relative to the lower shell 111. In addition, the sliding member 312 can rotate relative to the fixed member 311 and can be locked or unlocked with the fixed member 311 during the rotation process, wherein the matching structure between the sliding member 312 and the fixed member 311 can be a magnetic matching structure, that is, both the sliding member 312 and the fixed member 311 are provided with magnetic members, and when the sliding member 312 rotates, the two magnetic members approach or move away from each other, and when the two magnetic members approach each other, the magnetic force of attraction is maximum, and when the sliding member 312 rotates to increase the distance between the two magnetic members, the magnetic force gradually decreases, so that the sliding member 312 can slide relative to the fixed member 311. Of course, the matching structure between the sliding member 312 and the fixing member 311 may also be the matching structure of the limiting portion 35 and the guide groove 36 in the following embodiment, which is not limited here; with such an arrangement, when the shell assembly 10 is extended and retracted into place, the fixing member 311 and the sliding member 312 are rotated to lock the fixing member 311 and the sliding member 312 relative to each other. At this time, since the fixing member 311 and the sliding member 312 are respectively connected to the lower shell 111 of the shell assembly 10 and the sliding shell 112, the sliding shell 112 is limited and fixed, thereby locking and limiting the shell assembly 10, so that the shell assembly 10 maintains the desired extended state, thereby improving the structural stability of the shell assembly 10 during use and ensuring the stable performance of the heater 100.

[0179] Please refer to Fig.30 and Fig.31 In some embodiments of the present application, the sliding member 312 cooperates with the fixing member 311 through the limiting portion 35 and the guide groove 36. The guide groove 36 includes a guide section 361 extending along the telescopic direction and a limiting section 362 arranged at an angle to the guide section 361. The limiting portion 35 is slidably arranged in the guide groove 36.

[0180] The sliding member 312 slides relative to the fixing member 311 and drives the sliding housing 112 to rise and fall, and the limiting portion 35 slides along the guiding section 361. The sliding member 312 rotates relative to the fixing member 311 so that the limiting portion 35 enters the limiting section 362, so that the sliding member 312 and the fixing member 311 are locked in the telescopic direction.

[0181] In this embodiment, the shell assembly 10 is extended and retracted by the telescopic assembly 30 and the shell assembly 10 can be locked when the shell assembly 10 is extended; wherein the telescopic assembly 30 includes a slidably connected fixing member 311 and a sliding member 312, and a limiting portion 35 and a guide groove 36 are arranged between the fixing member 311 and the sliding member 312, wherein the limiting portion 35 can slide in the guide groove 36, and when the shell assembly 10 needs to be extended and retracted, the limiting portion 35 is located in the guide section 361 of the guide groove 36 so that the fixing member 311 and the sliding member 312 can slide relative to each other in the extension and retraction direction of the shell assembly 10, so that the shell assembly 10 can be normally extended and retracted, and when the shell assembly 10 is extended and retracted into place, the limiting portion 35 moves into the limiting section 362 of the guide groove 36, at this time, the fixing member 311 and the telescopic member are locked in the extension and retraction direction and cannot slide relative to each other, thereby locking and limiting the shell assembly 10, so that the shell assembly 10 maintains the required extended state, thereby improving the structural stability of the shell assembly 10 during use and ensuring the stable performance of the heater 100.

[0182] It should be noted that, in the present embodiment, a limiting portion 35 may be provided on the sliding member 312, and a guide groove 36 may be provided on the fixing member 311 accordingly, or a guide groove 36 may be provided on the sliding member 312, and a limiting portion 35 may be provided on the fixing member 311 accordingly, and no limitation is made herein; when the limiting portion 35 is provided on the sliding member 312, that is, when the guide groove 36 is provided on the fixing member 311, when the shell assembly 10 is extended, the sliding member 312 slides and rises relative to the fixing member 311. At this time, the limiting section 362 and the bottom end of the guide section 361 are spaced apart, and the distance between the limiting section 362 and the bottom end of the guide section 361 is the liftable distance of the sliding member 312 and the sliding shell 112. Of course, a plurality of limiting sections 362 may be spaced apart along the length direction of the guide section 361, so that the shell assembly 10 can be extended and fixed at any desired height position, thereby improving the flexibility of use of the heater 100. When the limiting portion 35 is arranged on the fixing member 311 and the guide groove 36 is arranged on the sliding member 312, the limiting section 362 is spaced apart from the top end of the guiding section 361, and the distance between the limiting section 362 and the top end of the guiding end is the lifting and lowering distance of the sliding member 312 and the sliding shell 112, which will not be elaborated here.

[0183] Please refer to Fig.30 In some embodiments of the present application, the guide groove 36 includes at least two limiting sections 362 spaced apart along the length direction of the guide section 361 .

[0184] In this embodiment, the guide groove 36 includes at least two limiting sections 362, and at least two limiting sections 362 are arranged at intervals along the length direction of the guide section 361. At this time, it can be the following embodiment, a limiting section 362 is respectively arranged at both ends of the guide section 361. In this way, when the shell assembly 10 is extended or retracted, the limiting portion 35 is respectively limited in the limiting sections 362 at both ends, so that the shell assembly 10 is locked and limited by the telescopic assembly 30 in the extended state or the retracted state, so that the heater 100 can maintain structural stability in both the retracted state and the extended state. Of course, it is also possible to set a plurality of limiting sections 362 at intervals along the length direction of the guide section 361, so that the shell assembly 10 can be extended and fixed at any desired height position, thereby improving the flexibility of use of the heater 100.

[0185] Please refer to Fig.30 In some embodiments of the present application, a limiting section 362 is respectively provided at both ends of the guide section 361.

[0186] In this embodiment, a limiting section 362 is respectively provided at both ends of the guide section 361 to correspond to the extension and contraction state between the two adjacent shells or the extension or telescopic state of the entire shell assembly 10. For example, when the sliding member 312 and the fixing member 311 are respectively fixed to the lower shell 111 and the sliding shell 112 adjacent to the lower shell 111, the locking and unlocking between the sliding member 312 and the fixing member 311 only corresponds to the extension and contraction state between the two adjacent shells. When the sliding member 312 is connected to the mounting shell 11 at the top of the shell assembly 10, the locking and unlocking between the sliding member 312 and the fixing member 311 only corresponds to the extension and contraction state of the entire shell assembly 10. When the two adjacent shells or shell assemblies 10 are extended or contracted into place, the limiting portion 35 is respectively limited in the limiting sections 362 at both ends, so that the limit is locked and limited by the telescopic assembly 30 in the extended state or the contracted state, so that the heater 100 can maintain structural stability in both the contracted state and the extended state.

[0187] Please refer to Fig.30 In some embodiments of the present application, the two limiting sections 362 at both ends of the guiding section 361 are respectively located on both sides of the guiding section 361 .

[0188] In this embodiment, two limit sections 362 are respectively provided at both ends of the guide section 361 to correspond to the extension and contraction state between the two adjacent shells or the extension or telescopic state of the entire shell assembly 10, and the two limit sections 362 are respectively located on both sides of the guide section 361, so that the sliding member 312 can be unlocked and locked at both ends by rotating in one direction. For example, when the heater 100 needs to be extended, the sliding member 312 rotates to move the limit portion 35 out of the limit section 362 at the lower end of the guide section 361. After extending into place, the sliding member 312 rotates in the same direction to allow the limit portion 35 to enter the upper end of the limit section 362; conversely, when the heater 100 needs to be contracted, the sliding member 312 rotates to move the limit portion 35 out of the limit section 362 at the upper end of the guide section 361. After contracting into place, the sliding member 312 rotates in the same direction to allow the limit portion 35 to enter the lower end of the limit section 362, thereby improving the operating convenience of the heater 100 and facilitating user operation.

[0189] Please refer to Fig.32 and Fig.33 In some embodiments of the present application, a groove 363 is recessed on the lower groove wall of the limiting section 362 , and the limiting portion 35 can enter and exit the groove 363 .

[0190] In this embodiment, a groove 363 is concavely formed on the lower groove wall of the limiting section 362. In this way, when the limiting portion 35 enters the limiting section 362, the limiting portion 35 sinks into the groove 363 to lock the limiting portion 35 through the groove 363, thereby preventing the limiting portion 35 from being accidentally rotated by the user or the housing assembly 10 being affected by other factors, causing the limiting portion 35 to escape from the limiting section 362 and enter the guide section 361, causing the sliding housing 112 to fall. The provision of the groove 363 improves the stability of the limiting portion 35 being limited in the limiting section 362, and improves the stability of the locked state of the telescopic assembly 30 and the housing assembly 10.

[0191] Please refer to Fig.30 In some embodiments of the present application, a connecting portion is protruding from the side wall of the sliding member 312. During the extension of the telescopic assembly 30, the connecting portion abuts against the top wall of the sliding shell 112 at the top and drives the sliding shell 112 to rise.

[0192] In this embodiment, the sliding member 312 is transmission-connected with the sliding housing 112 which can be extended to the top in the housing assembly 10, and a connecting portion is protruded on the side wall of the sliding member 312. When the sliding member 312 rises relative to the fixed member 311, the connecting portion can abut against the top wall of the sliding housing 112, thereby driving the sliding housing 112 to rise together; wherein, the sliding member 312 can be raised and lowered and rotatable relative to the sliding housing 112, or the connecting portion can be connected to the sliding housing 112. At this time, it is also necessary to enable the sliding housing 112 to rotate relative to the lower shell 111, so that the sliding housing 112 and the sliding member 312 can rotate synchronously during the process of the sliding member 312 rotating relative to the fixed member 311 to unlock or lock, so as to avoid the sliding housing 112 interfering with the rotation of the sliding member 312.

[0193] In some embodiments of the present application, an extension portion is provided on the top of the sliding member 312 , and the extension portion passes through the top wall of the sliding housing 112 .

[0194] In this embodiment, an extension portion is provided at one end of the sliding member 312 and protrudes from the top and the gripping portion of the shell assembly 10, so that the user can grasp the sliding member 312 to drive the sliding member 312 to rotate or rise and fall. In some embodiments, a handle 374 can be covered on the outside of the extension portion to facilitate the user's grip, thereby further improving the ease of use of the heater 100.

[0195] In some embodiments of the present application, the sliding housing 112 can rotate relative to the lower housing 111 and is fixedly connected to the sliding member 312 to move synchronously with the sliding member 312 .

[0196] In this embodiment, the sliding housing 112 is rotated relative to the lower housing 111, and the sliding member 312 is fixedly connected to the sliding housing 112. Such an arrangement allows the sliding housing 112 to move synchronously with the sliding member 312, that is, when the sliding member 312 rotates relative to the fixed member 311 to unlock or lock, the sliding housing 112 synchronously rotates relative to the lower housing 111, and when the sliding member 312 is raised or lowered, the sliding housing 112 is raised or lowered synchronously.

[0197] At this time, the handle 374 of the telescopic assembly 30 can be fixed to the extension portion of the sliding member 312 protruding from the sliding housing 112, or can be directly fixed to the sliding housing 112, so that the sliding housing 112 is driven to rotate or rise and fall through the handle 374 to cause the sliding member 312 to rotate or rise and fall.

[0198] Please refer to Fig.29 In some embodiments of the present application, the housing assembly 10 includes at least two sliding housings 112 , and one end of the sliding member 312 away from the fixing member 311 is connected to the sliding housing 112 located at the top.

[0199] In this embodiment, the shell assembly 10 includes at least two sliding shells 112. At this time, the sliding member 312 is connected to the sliding shell 112 that can be extended to the top to drive the top sliding shell 112 to rise and fall. For the middle sliding shell 112, as in the following embodiment, the top sliding shell 112 can drive the middle sliding shell 112 to rise through the connection between the top sliding shell 112 and the middle sliding shell 112. It is also possible to set a sliding member 312 corresponding to each sliding shell 112. When each sliding member 312 is raised or lowered, it can drive the sliding shell 112 connected thereto to rise or fall. It will not be repeated here.

[0200] In some embodiments of the present application, between the two fitted sliding housings 112, a traction portion is convexly provided on the inner wall of the lifting housing located on the outer side, and a stop portion is convexly provided on the outer wall of the lifting housing located on the inner side, and the stop portion is arranged opposite to the traction portion;

[0201] The telescopic assembly 30 pulls one of the sliding housings 112 to rise relative to the other sliding housing 112 until the stop portion abuts against the pulling portion, so that the two sliding housings 112 rise synchronously.

[0202] It can be understood that between the two sliding shells 112 that are fitted into each other, one end of the sliding shell 112 that is sleeved on the outside is provided with an opening for inserting the other sliding shell 112; in this embodiment, a traction portion is convexly provided on the inner wall of the outer sliding shell 112 adjacent to the opening, and a stop portion is convexly provided on the outer wall of the inner sliding shell 112 that is inserted into the outer sliding shell 112. When the two sliding shells 112 are in a retracted state, the stop portion and the traction portion are arranged opposite to each other and at intervals. When the telescopic component 30 drives one of the sliding shells 112 to extend relative to the other sliding shell 112, the stop portion abuts against the traction portion. At this time, the telescopic component 30 can drive the other sliding shells 112 to extend by pulling one of the sliding shells 112, and there is no need to set multiple sliding members 312 to be connected to each sliding shell 112, so that the structure of the heater 100 is simpler and the structure of the heater 100 is reduced.

[0203] Please refer to Figures 34 to 41In some embodiments, the telescopic component 30 is an elastic telescopic component 30, which at least includes an elastic support member 38 for elastically supporting the sliding shell 112. The elastic lifting structure can be but is not limited to a gas spring 383, an elastic airbag, a spring 383, etc., which is not limited here, so that the two ends of the elastic lifting structure are respectively abutted against the lower shell 111 of the shell component 10 and the sliding shell 112 that can be extended to the top, so that the elastic lifting structure can support the sliding shell 112. The heater 100 also includes a telescopic component 30 arranged in the shell component 10 and a lock-release component 40 for locking the shell component 10 when the shell component 10 is contracted. When the elastic lifting structure is in a normal extended state, the sliding shell 112 and the lower shell 111 remain in an extended state. When the sliding shell 112 slides down relative to the lower shell 111, the elastic lifting structure is compressed and produces An upward elastic force is generated and applied to the sliding shell 112. With this arrangement, the top sliding shell 112 can always be under a certain pressure, and the problem of the heater 100 becoming shorter during normal use will not occur. When the heater 100 is not in use, the sliding shell 112 is lowered and folded with the lower shell 111, and the locking assembly 40 is used to lock the sliding shell 112 and the lower shell 111, so that the heater 100 maintains structural stability in the contracted state, avoiding the problem of the sliding shell 112 popping out under the elastic force of the lifting structure. The locking assembly 40 can lock the sliding shell 112 and the lower shell 111 by magnetically connecting the sliding shell 112 and the lower shell 111, snap-fitting, threadedly connecting, bolting with connecting parts 34 such as bolts or latches, or fixing with binding parts such as cable ties, which is not limited here.

[0204] Please refer to Fig.34 and Fig.35 In some embodiments of the present application, the telescopic assembly 30 includes an elastic support member 38, one end of the elastic support member 38 abuts against the lower shell 111, and the other end of the elastic support member 38 abuts against the sliding shell 112 located at the top.

[0205] In this embodiment, the telescopic component 30 includes an elastic support member 38, which can be but is not limited to a gas spring 383, an elastic airbag, a spring 383, etc., and one end of the elastic support member 38 abuts against the lower shell 111, and the other end abuts against the sliding shell 112 that can be extended to the top. When the elastic support member 38 is in a normal extended state, the sliding shell 112 and the lower shell 111 remain in an extended state. When the sliding shell 112 slides down relative to the lower shell 111, the elastic support member 38 is compressed to generate an upward elastic force and apply it to the sliding shell 112. With this arrangement, the sliding shell 112 at the top can always be under a certain pressure, and the problem of the height of the heater 100 becoming shorter during normal use will not occur; when the shell assembly 10 is unlocked from the contracted state, the elastic support member 38 extends to support the sliding shell 112 to rise, so that the heater 100 automatically extends without the need for the user to lift and pull the heater 100, thereby improving the convenience of use of the heater 100.

[0206] In some embodiments of the present application, the elastic support member 38 maintains an elastically contracted state.

[0207] It is understandable that when the heater 100 is contracted, the elastic support member 38 is compressed and also remains in a contracted state, so that an elastic force can be provided to extend the heater 100 when the heater 100 is unlocked. In this embodiment, the elastic support member 38 is always kept in an elastic contracted state, that is, when the housing assembly 10 is in an extended state, the elastic support member 38 is also in a compressed state. In this way, the sliding housing 112 at the top can always be subjected to a certain pressure, and the problem of the height of the heater 100 becoming shorter during normal use will not occur, thereby improving the structural stability of the heater 100 in use.

[0208] Please refer to Fig.37 In some embodiments of the present application, the elastic support member 38 is a gas spring assembly 381, one end of the gas spring assembly 381 is fixed to the lower shell 111, and the other end is connected to the sliding shell 112 located at the top.

[0209] In this embodiment, the elastic support member 38 is a gas spring assembly 381, which generally includes a pressure cylinder, a piston rod, a piston, and a filler (an inert gas or an oil-gas mixture) filled in the pressure cylinder. The cross-sectional area of ​​the piston rod is smaller than that of the piston, thereby generating a pressure difference on both sides of the piston. When the gas spring 383 acts, the pressure difference on both sides of the piston is utilized to keep the piston rod in an ejected state to support the sliding housing 112. In some embodiments, mounting members 382 may be provided on both the lower housing 111 and the top sliding housing 112 to respectively connect the pressure rod and the piston rod of the gas spring assembly 381, so that the gas spring assembly 381 and the housing assembly 10 maintain a stable connection relationship, thereby preventing the gas spring assembly 381 from being skewed or misaligned.

[0210] Please refer to Fig.34 and Fig.35 In some embodiments of the present application, the elastic support member 38 is a spring 383, one end of the spring 383 is fixed to the lower shell 111, and the other end is connected to the sliding shell 112 located at the top.

[0211] In this embodiment, the elastic support member 38 is a spring 383, so that the two ends of the spring 383 are respectively abutted against the lower shell 111 of the shell assembly 10 and the top sliding shell 112, and the spring 383 is in a compressed state, which can provide an upward supporting force to the sliding shell 112, so that the sliding shell 112 has an upward drive, thereby maintaining the structural stability of the heater 100 in the extended state when the heater 100 is in use.

[0212] In some embodiments, the telescopic component 30 can be provided with a combination of at least two or at least one elastic support member 38, for example, using at least two gas springs 383, two springs 383, or a combination structure of at least one gas spring 383 and at least one spring 383, which is not limited here. This can increase the elastic supporting force on the sliding shell 112 and further improve the structural stability of the heater 100 in the extended state.

[0213] Please refer to Fig.34 and Fig.35 In some embodiments of the present application, the telescopic assembly 30 also includes a guide structure 31, which includes at least two telescopic parts that are slidably connected along the telescopic direction of the shell, one of which is connected to the lower shell 111, and the other telescopic part is connected to the sliding shell 112 located at the top.

[0214] In this embodiment, the telescopic assembly 30 includes a guide structure 31, which includes at least two telescopic parts that are slidably connected in sequence. The telescopic parts are mostly made of hard materials and can maintain a high degree of alignment in the telescopic direction of the shell assembly 10, wherein one of the telescopic parts of the guide structure 31 is connected to the lower shell 111 as a fixed part 311, and the other telescopic parts are sliding parts 312, and one of the sliding parts 312 is connected to the sliding shell 112 located at the top; the setting of the guide structure 31 can not only improve the supporting effect of the telescopic assembly 30 on the shell, but also guide the telescopic direction of the shell assembly 10 during the telescopic process of the elastic support member 38 and the shell assembly 10, so as to avoid the deflection of the sliding shell 112, which will increase the friction between the shell assembly 10 and affect the stability of the telescopic process. It should be noted that in this embodiment, the telescopic part can be a telescopic slat, a telescopic sleeve or other structure, which is not limited here.

[0215] Please refer to Fig.41In some embodiments of the present application, the telescopic member is a telescopic sleeve, each telescopic sleeve is fitted with each other and is interconnected internally to form an accommodating space, and the elastic support member 38 is disposed in the accommodating space.

[0216] In this embodiment, the telescopic member of the guide structure 31 is a telescopic sleeve, and each telescopic sleeve is fitted together, thereby increasing the contact area between two adjacent telescopic members, and allowing the telescopic members to limit each other in the horizontal direction to avoid misalignment or separation, thereby improving the structural strength and sliding stability of the telescopic assembly 30. Among them, the sliding sleeve rod can be polygonal, circular or other morphological structures, which are not limited here.

[0217] Furthermore, the internal spaces of the various telescopic sleeves are interconnected to form an accommodating space, and the elastic support member 38 is arranged in the accommodating space, which can not only protect the elastic support member 38, but also allow the guide structure 31 and the elastic support member 38 to be arranged at the same position, thereby reducing the space occupied by the telescopic assembly 30, and the accommodating space can be used to guide the telescopic process of the elastic support member 38, thereby avoiding the spring 383 from bending under force instead of being compressed when an elastic support member 38 such as a spring 383 is used, thereby affecting the performance stability.

[0218] Please refer to Fig.41 In some embodiments of the present application, both ends of the accommodating space are covered with blocking members 316 , and both ends of the elastic supporting member 38 are respectively abutted against the two blocking members 316 .

[0219] In this embodiment, sealing members 316 are provided at both ends of the guide structure 31, so that the elastic support member 38 and the guide structure 31 are configured as an integrated structure, which facilitates the disassembly and assembly between the telescopic component 30 and the shell component 10, thereby improving the convenience of disassembly and assembly of the heater 100.

[0220] Please refer to Fig.34 and Fig.35 In some embodiments of the present application, the heater 100 further includes a buffer assembly 50, which is transmission-connected to the sliding housing 112 to provide a buffer force in the opposite direction of the movement direction for the sliding housing 112 during at least one process of the sliding housing 112 rising and falling.

[0221] The present application utilizes an elastic telescopic component 30 to automatically push the sliding shell 112 upward when the heater 100 is unlocked to achieve automatic extension of the heater 100; it is understandable that the greater the degree of contraction of the elastic support member 38, the greater the elastic force generated, and the speed at which the sliding shell 112 is pushed upward is also greater. When the heater 100 is unlocked and the elastic support member 38 is released, the elastic force exerted on the sliding shell 112 is relatively large. At this time, the sliding shell 112 is prone to being ejected quickly, which may pose a safety hazard. If the heater 100 is pressed down and contracted with a large force, the sliding shell 112 is also prone to descending quickly, causing internal components to collide.

[0222] In this embodiment, a buffer assembly 50 is provided in the heater 100. The buffer assembly 50 can be used to provide a downward buffer force for the sliding shell 112 to limit the rising speed of the sliding shell 112 during the rising process of the sliding shell 112; the buffer assembly 50 can also be used to provide an upward buffer force for the sliding shell 112 to limit the descending speed of the sliding shell 112 during the descending process of the sliding shell 112; that is, the buffer assembly 50 can limit the moving speed of the sliding shell 112 during the rising or falling process of the sliding shell 112. For example, in the following embodiment, a traction rope 51 is provided to limit the rising speed of the sliding shell 112. Similarly, a traction structure can be provided to push or pull the sliding shell 112 upward to limit the descending speed of the sliding shell 112. It is also possible to provide a buffer assembly 50 to limit the moving speed of the sliding shell 112 during the rising and falling processes of the sliding shell 112 at the same time, or to provide two groups of buffer structures to limit the moving speed of the sliding shell 112 during the rising and falling processes of the sliding shell 112 respectively, which is not limited here. The buffer assembly 50 may be provided with a traction rope 51 , a pressure cylinder, etc., or may be provided with an elastic structure opposite to the elastic support member 38 .

[0223] Please refer to Fig.41 In some embodiments of the present application, the buffer assembly 50 includes:

[0224] A traction rope 51, one end of which is connected to the sliding housing 112 at the top, and the other end of which extends to the lower housing 111; and

[0225] A driving member is connected to the traction rope 51 to provide a downward pulling force to the traction rope 51 .

[0226] In this embodiment, the buffer assembly 50 is configured as a combination structure of a traction rope 51 and a driving member. One end of the traction rope 51 is connected to the sliding shell 112 at the top, so that the other end of the traction rope 51 naturally droops and is connected to the driving member, so that the driving member applies a downward pulling force to the traction rope 51, thereby pulling the top mounting shell 11 downward. At this time, the sliding shell 112 is simultaneously subjected to the elastic supporting force and the traction force of the elastic support member 38. The pulling force applied to the traction rope 51 by the driving member is controlled to adjust the external force finally received by the sliding shell 112, so as to control the rising speed of the sliding shell 112, avoid the sliding shell 112 rising too fast, and improve the safety of the extension process of the heater 100. In addition, when the heater 100 needs to be contracted, the traction rope 51 can also be pulled down to drive the sliding shell 112 to slide down. At this time, the sliding speed of the sliding shell 112 can be controlled by controlling the recovery speed of the traction rope 51. The driving member may be a motor or a cylinder or a liquid cylinder, etc., which drives a winding mechanism or other structures to recover or release the traction rope 51. Of course, the traction rope 51 may also be retracted and released manually. For example, a holding structure such as a handle 4 may be provided to manually rotate the winding mechanism to retract and release the traction rope 51. No limitation is made here. When the driving member is a driving motor, the rotation speed of the driving motor may be controlled to control the pulling force of the driving member on the traction rope 51, thereby controlling the extension and retraction speed of the heater 100.

[0227] Please refer to Fig.34 and Fig.35 In some embodiments of the present application, when the elastic support member 38 is a spring 383 , the traction rope 51 is passed through the inner side of the spring 383 .

[0228] In this embodiment, the elastic support member 38 is a spring 383, and the spring 383 is a spiral extension structure, so that the traction rope 51 is passed through the inside of the spring 383, so that the telescopic component 30 and the buffer component 50 can be set at the same position, reducing the space occupied by the telescopic component 30 and the buffer component 50 in the shell component 10, thereby reducing the volume of the shell component 10 and reducing the volume of the heater 100.

[0229] In some embodiments, the telescopic assembly 30 also includes a guide structure 31 formed by at least two telescopic sleeves. At this time, the traction rope 51 can be set in the guide structure 31 to protect the traction rope 51 and prevent the traction rope 51 from being continuously in a hot air environment and easily damaged. It can also limit the traction rope 51 and prevent the traction rope 51 from being scattered in the heat dissipation channel 113 and hooking or hanging on other structures such as the heating assembly 20, causing the movement of the traction rope 51 to be interfered with and easily cause damage to other component structures, thereby improving the stability of the heater 100.

[0230] Please refer to Fig.38In some embodiments of the present application, the buffer assembly 50 includes at least two sealing sleeves 52 which are sequentially fitted with each other, wherein one sealing sleeve 52 is connected to the lower shell 111, and the other sealing sleeve 52 is connected to the sliding shell 112 located at the top;

[0231] The interiors of the sealing sleeves 52 are interconnected to form an air cavity, wherein a vent hole 521 communicating with the air cavity is formed on the side wall of at least one sealing sleeve 52 . The sliding housing 112 is raised and lowered to cause the buffer assembly 50 to expand and contract so that the air cavity is inflated and deflated through the vent hole 521 .

[0232] In this embodiment, the buffer assembly 50 includes at least two sealing sleeves 52 which are slidably connected in sequence and fit together. The sealing sleeves 52 are interconnected to form an air cavity. When the air cavity is inflated, the air pressure inside the air cavity increases, which will cause the sealing sleeve 52 to slide relatively and stretch, thereby increasing the volume of the air cavity and reducing the air pressure; when the air cavity is exhausted, the air pressure inside the air cavity decreases, which will cause the sealing sleeve 52 to slide relatively and shrink, thereby reducing the volume of the air cavity and increasing the air pressure inside the air cavity to a balanced state. The buffer component 50 expands and contracts with the shell component 10. At this time, when the heater 100 does not need to expand or contract, the air pressure difference between the air cavity and the outside world will maintain the length of the buffer component 50 unchanged. When the buffer component 50 is extended along with the shell component 10, the air cavity volume of the buffer component 50 increases, causing the air pressure in the air cavity to decrease. At this time, the air pressure difference between the air cavity and the outside world will produce resistance that hinders the extension of the buffer component 50, thereby buffering the extension process of the shell component 10 and preventing the shell component 10 from extending too quickly. However, in this process, the air pressure difference between the air cavity and the outside world will also cause external gas to enter the air cavity from the vent 521, so as to increase the air pressure inside the air cavity and balance the air pressure inside and outside the air cavity, thereby avoiding the buffer component 50 from expanding too quickly. The impact assembly 50 always applies a retracting force to the shell assembly 10 to prevent the shell assembly 10 from shrinking due to the resistance of the buffer assembly 50 when the shell assembly 10 is in an extended state; when the buffer assembly 50 shrinks with the shell assembly 10, the air pressure in the air cavity increases. At this time, the air pressure difference between the air cavity and the outside world will produce resistance that hinders the shrinkage of the buffer assembly 50, thereby buffering the shrinkage process of the shell assembly 10 and preventing the shell assembly 10 from shrinking too quickly. However, in this process, the air pressure difference between the air cavity and the outside world will also cause the gas in the air cavity to be discharged outward from the vent 521 to reduce the air pressure inside the air cavity and balance the air pressure inside and outside the air cavity, thereby preventing the buffer assembly 50 from always applying a retracting force to the shell assembly 10.

[0233] Please refer to Fig.36In some embodiments, the telescopic assembly 30 is provided with a guide structure 31 formed by at least two telescopic sleeves fitting together. In this case, the guide structure 31 can be reused as a buffer assembly 50, that is, the two adjacent telescopic sleeves are kept sealed, so that the internal space of each telescopic sleeve forms an air cavity; for example, sealing oil or sealing grease can be added between the walls of the two adjacent and mutually fitting telescopic sleeves, which can not only play a sealing role, but also a lubricating role, so as to prevent the two telescopic sleeves from being easily worn and leaking during the telescopic process; of course, a seal 313 can be arranged around the sleeve position of the two adjacent telescopic sleeves, so that at least part of the seal 313 is sandwiched between the walls of the two telescopic sleeves, which is not limited here. With such an arrangement, the shell assembly 10 of the heater 100 can be guided and limited during the telescopic process, and the lifting process of the shell assembly 10 can also play a buffering and speed limiting role, thereby improving the stability and safety of the heater 100 during the telescopic process.

[0234] Please refer to Fig.39 and Fig.40 In some embodiments of the present application, the sealing sleeve 52 is provided with two vent holes 521, and the buffer assembly 50 further includes two one-way valves 53, one of the one-way valves 53 is provided at one of the vent holes 521, and one of the vent holes 521 is only used for air intake into the air cavity as an air intake hole, and the other vent hole 521 is used for air discharge from the air cavity as an exhaust hole.

[0235] In this embodiment, two vent holes 521 connected to the air cavity are provided on the sealing sleeve 52, at least one of the vent holes 521 is used as an air inlet to inflate the air cavity, and one of the vent holes 521 is used as an exhaust hole to allow the air cavity to be exhausted to the outside; at the same time, one-way valves 53 are respectively provided on the air inlet and the exhaust port to respectively control the opening and closing states of the air inlet and the exhaust port; when there is no need to extend or retract the heater 100, the two one-way valves 53 are closed, at which time the air cavity is completely sealed and air cannot be taken in or exhausted, and the sealing sleeves 52 of the buffer assembly 50 cannot slide relative to each other, so that the shell assembly 10 can maintain the structural stability of the current state; and when it is necessary to use When the heater 100 contracts, the one-way valve 53 on the exhaust port is opened so that the air cavity can be exhausted outward in one direction, so that the buffer component 50 can contract to avoid hindering the contraction of the heater 100. In addition to controlling the opening and closing of the exhaust port, the one-way valve 53 can also control the airflow direction of the exhaust port to prevent external gas from entering the air cavity from the exhaust port; when the shell component 10 needs to be extended, the one-way valve 53 at the air inlet position is opened so that the air cavity can be inflated so that the buffer component 50 can extend with the shell component 10 to avoid affecting the extension of the heater 100. Similarly, the one-way valve 53 at the air inlet can be used to control the opening and closing of the air inlet and the airflow direction.

[0236] In some embodiments of the present application, the elastic support member 38 is disposed through the air cavity, and two ends of the elastic support member 38 are respectively in contact with the cavity walls at both ends of the air cavity.

[0237] In this embodiment, the elastic support member 38 is arranged in the air cavity. In this way, the buffer assembly 50 can be used to protect the elastic support member 38, and the elastic support member 38 and the buffer assembly 50 can be arranged at the same position, reducing the space occupied by the telescopic assembly 30 and the buffer assembly 50 in the shell assembly 10, thereby reducing the volume of the shell assembly 10 and the volume of the heater 100. The telescopic assembly 30 and the buffer assembly 50 are arranged as an integrated structure, which is convenient for disassembly and assembly of the heater 100.

[0238] Please refer to Fig.34 and Fig.35 In some embodiments of the present application, the lock-release structure includes:

[0239] A first connecting portion 41, which is disposed on the lower shell 111; and

[0240] The second connection part 42 is disposed on the top of the sliding housing 112 . The sliding housing 112 is lowered or raised to connect or separate the second connection part 42 from the first connection part 41 .

[0241] In this embodiment, the lock-release structure includes a first connection part 41 and a second connection part 42 respectively arranged on the lower shell 111 and the sliding shell 112. When the sliding shell 112 slides relative to the lower shell 111, the second connection part 42 will be driven to approach or move away from the first connection part 41. When the heater 100 is contracted, that is, the sliding shell 112 is contracted to the lower shell 111, the first connection part 41 and the second connection part 42 are locked with each other, thereby maintaining the structural stability of the heater 100 in the contracted state and preventing the heater 100 from popping out under the action of the telescopic assembly 30. Among them, the first connection part 41 and the second connection part 42 can be set as magnetic suction parts, so that the first connection part 41 and the second connection part 42 are magnetically connected and locked with each other; the first connection part 41 and the second connection part 42 can also be respectively set as buckles and clamping parts 1511 for clamping fit; or the first connection part 41 and the second connection part 42 can also be set as bolted connection or other detachable connection matching structures or the hook 421 and lock buckle 411 structures in the following embodiments, which will not be repeated here.

[0242] Please refer to Fig.34 and Fig.35 In some embodiments of the present application, the second connecting portion 42 extends from the top wall of the sliding shell 112 to the lower shell 111 and is provided with a hook 421. The first connecting portion 41 is provided with a lock 411. The hook 421 is hooked on the lock 411 to connect the first connecting portion 41 and the second connecting portion 42.

[0243] In this embodiment, the first connecting portion 41 and the second connecting portion 42 are a matching structure of a hook 421 and a lock buckle 411, wherein the first connecting portion 41 extends downward from the top wall of the sliding shell 112, and a hook 421 structure is formed at the end of the first connecting portion 41, and the second connecting portion 42 is arranged on the lower shell 111 and forms a lock buckle 411, and the lock buckle 411 has a supporting portion and an abutting portion protruding from the side of the supporting portion, and a clamping space is formed below the abutting portion. When the second connecting portion 42 is pressed downward, the hook 421 is hooked in the clamping space and locked with the abutting portion, thereby The first connection part 41 and the second connection part 42 are connected; when the hook 421 and the lock buckle 411 need to be unlocked, the hook 421 can be disengaged from the locking space by applying a certain external force, or the first connection part 41 and the second connection part 42 can be configured to press the lock buckle 411 structure in the following embodiment, similar to the function of a rebounder. When the first connection part 41 and the second connection part 42 are in a locked state, pressing down the second connection part 42 can unlock the first connection part 41 and the second connection part 42, thereby improving ease of use and reducing the risk of damage.

[0244] In some embodiments of the present application, the lock-release structure is a structure for pressing the lock buckle 411 , and the first connection portion 41 is pressed downward relative to the second connection portion 42 to connect and separate the hook 421 from the lock buckle 411 .

[0245] In this embodiment, the lock-release structure is configured as a press lock buckle 411 structure, that is, when the second connection part 42 is pressed down along with the sliding shell 112, the hook 421 of the second connection part 42 can be connected to the lock buckle 411 of the first connection part 41; when the sliding shell 112 and the second connection part 42 are continued to be pressed down in the locked state, the hook 421 can be disengaged from the lock buckle 411 to achieve unlocking, thereby improving the convenience of locking and releasing the lock-release structure. Among them, the pressing lock buckle 411 structure can be such that a track structure similar to a "W" structure is provided on the lock buckle 411, and both ends of the W track structure are open. When the hook 421 of the second connecting portion 42 is pressed down with the sliding shell 112, the hook at one end slides into the track, releasing the pressure on the sliding shell 112. At this time, under the action of the telescopic component 30, the sliding shell 112 and the second connecting portion 42 will rebound upward. At this time, the hook 421 will enter the middle of the W track structure along the track and hook at this position, so that the first connecting portion 41 and the second connecting portion 42 are connected. When the sliding shell is pressed down again, When the sliding housing 112 and the second connecting part 42 are connected, the hook 421 slides down along the track to the bottom of the track. When the pressure on the sliding housing 112 is released, the sliding housing 112 and the second connecting part 42 will rebound upward under the action of the telescopic component 30. At this time, the hook 421 will be disengaged from the opening at one end of the W track structure, so that the first connecting part 41 and the second connecting part 42 are unlocked; in some embodiments, the lock release structure can be set to a rebounder or other push lock buckle 411 interface. Of course, the push lock buckle 411 structure can also be the structural form in the following embodiments, which will not be repeated here.

[0246] Please refer to Fig.34 and Fig.35 In some embodiments of the present application, the second connecting portion 42 further includes a pressing portion 422 disposed above the hook 421, and the top surface of the lock buckle 411 is an inclined surface 412 inclined from top to bottom toward the side away from the side opening;

[0247] When the first connection part 41 and the second connection part 42 are unlocked, the sliding shell 112 and the first connection part 41 slide down so that the pressing part 422 abuts against the inclined surface 412 and tilts along the inclined surface 412, and the hook 421 moves out of the opening of the locking space and disengages from the locking space, so that the first connection part 41 is separated from the second connection part 42.

[0248] In this embodiment, the second connecting portion 42 includes a hook 421 and a pressing portion 422 arranged above the hook 421, the pressing portion 422 extends to the side of the hook 421, and the top surface of the abutment portion on the top of the lock buckle 411 is set as a downwardly inclined inclined surface 412. When the hook 421 of the second connecting portion 42 is pressed down with the sliding shell 112, the hook 421 will be deformed to a certain extent or the first connecting portion 41 will be elastically bent as a whole to withdraw to the side away from the clamping space, so that the hook 421 can enter the clamping space to connect the first connecting portion 41 and the second connecting portion 42. At this time, the hook 421 is connected to the bottom wall of the clamping space. The second connection part 42 is arranged at intervals; when unlocking is required, the sliding shell 112 is pressed to press the second connection part 42 downward. At this time, the pressing part 422 of the second connection part 42 is pressed on the top inclined surface 412 of the first connection part 41, and tilts along the inclined surface 412 during the continuous downward pressing of the second connection part 42, so that the hook 421 rotates to the side away from the card connection space and withdraws from the card connection space, so that the first connection part 41 and the second connection part 42 are unlocked, and the pressure on the sliding shell 112 is released. At this time, under the action of the telescopic assembly 30, the sliding shell 112 and the second connection part 42 rise away from the lower shell 111 and the first connection part 41.

[0249] In some embodiments, the telescopic assembly 30 includes a slidably connected fixed member 311 and at least one sliding member 312. When at least two sliding members 312 are provided, one of the sliding members 312 is slidably connected to the fixed member 311, and the two ends of the other sliding members 312 are slidably connected to the adjacent sliding member 312 or the fixed member 311 respectively; the fixed member 311 is connected to the lower shell 111 in the shell assembly 10 to maintain a fixed position relative to the sliding member 312 and the sliding shell 112 in the telescopic direction of the shell assembly 10, so that the sliding member 312 and the sliding shell 112 can slide in the telescopic direction relative to the fixed member 311 and the lower shell 111. At this time, the sliding shell 112 can be driven to slide relative to the fixed member 311 to slide relative to the lower shell 111, and the sliding member 312 and the fixed member 311 and the adjacent sliding members 312 when more than two sliding members 312 are provided can be locked with each other, so that the telescopic assembly 30 and the shell assembly 10 maintain a fixed extension length and state. Among them, the fixed part 311 of the telescopic component 30 can be a turbine, and the sliding part 312 is a worm, so that the sliding part 312 and the fixed part 311 are meshed with each other. When the fixed part 311 rotates, the sliding part 312 can be telescopic relative to the fixed part 311, and when the fixed part 311 and the sliding part 312 stop sliding, the meshing relationship between the turbine and the worm will make the turbine and the worm in a self-locking state, so that the telescopic component 30 and the housing component 10 are locked; and when two or more sliding parts 312 are provided, the adjacent sliding parts 312 are connected by a turbine transmission, so that each sliding part 312 can slide relative to each other; in addition, the telescopic component 30 can also adopt a gear rack structure, one of the fixed part 311 and the sliding part 312 is set as a gear, and the other is set as a rack. When the gear rotates, the gear and the rack can also slide relative to each other, and can be locked at any position; of course, the telescopic component 30 can also adopt the form of threaded matching of the fixed part 311 and the sliding part 312 in the following embodiment, which is not repeated here.

[0250] In some embodiments of the present application, the fixing member 311 and the sliding member 312 are threadedly connected so that the fixing member 311 and the sliding member 312 can rotate relative to each other and slide relative to each other at the same time.

[0251] In this embodiment, the fixing member 311 and the sliding member 312 are threadedly connected. For example, the telescopic assembly 30 is set to be a screw transmission structure, and one of the fixing member 311 or the sliding member 312 is set to be a screw or a stud, and the other is set to be a screw nut or a nut threadedly connected to the stud or a sleeve structure with an internal thread, wherein the screw or the stud is the fixing member 311 and is rotatably connected to the lower shell 111, so that the sliding shell 112 and the sliding member 312 are transmission-connected, so that when the screw or the stud is rotated, the sliding member 312 will slide on the screw or the stud, thereby driving the sliding shell 112 relative to the lower shell. The shell 111 slides; of course, the screw rod or stud can be fixedly connected to the lower shell 111, and the sliding member 312 can be rotated relative to the screw rod or stud so that the sliding member 312 can be lifted and lowered relative to the screw rod or stud at the same time, thereby driving the sliding shell 112 to slide relative to the lower shell 111; it can be understood that the screw rod nut or the like can also be used as a fixing member 311 to be rotatably connected or fixedly connected to the lower shell 111, so that the screw rod or stud can be used as a sliding member 312 to be transmission-connected to the sliding shell 112, and the sliding shell 112 can also be made to slide relative to the lower shell 111 by making the sliding member 312 and the fixing member 311 rotate and slide relative to each other.

[0252] Please refer to Figure 42 to Figure 45 In some embodiments of the present application, at least one of the fixing member 311 and the sliding member 312 is provided with a sleeve, the inner wall of the sleeve is provided with an internal thread, and the fixing member 311 and the sliding member 312 are fitted with each other.

[0253] In this embodiment, at least one of the fixing member 311 and the sliding member 312 is a sleeve with an internal thread. The fixing member 311 can be a sleeve, and the sliding member 312 threadedly matched with the fixing member 311 can be a threaded rod. The sliding member 312 is inserted into the fixing member 311 and threadedly matched with the sliding member 312. At this time, the sliding member 312 can be made to slide relative to the fixing member 311 by rotating the fixing member 311 or rotating the sliding member 312. Of course, the fixing member 311 can also be set as a threaded rod, and the sliding member 312 matched with the fixing member 311 can be set as a sleeve, which will not be elaborated here. In addition, it should be noted that when the telescopic component 30 is provided with two or more sliding members 312, the sliding member 312 located between the two sliding members 312 or between the fixed member 311 and the sliding member 312 can be provided as a sleeve with threads both inside and outside, so as to be threadedly connected to the two sliding members 312 respectively or to the fixed member 311 and the other sliding member 312 respectively, or the sliding member 312 located in the middle can be provided as an internally threaded sleeve or stud, and the fixed member 311 and the other sliding member 312 can be provided as studs or sleeves, which are respectively inserted or sleeved on the middle sliding member 312 to cooperate with the threads of the sliding member 312.

[0254] Please refer to Figure 42 to Figure 45 In some embodiments of the present application, the telescopic assembly 30 includes at least two sliding members 312 that are sequentially fitted together, wherein one sliding member 312 is threadedly connected to the fixing member 311 , and two adjacent sliding members 312 are threadedly connected to each other.

[0255] The present application guides the shell assembly 10 to extend and retract through the telescopic assembly 30, and the shell assembly 10 needs to be able to extend to any height and be locked; when only one fixing member 311 and one sliding member 312 are provided in the telescopic assembly 30, the length of the sliding member 312 itself will also limit the retractable length of the shell assembly 10. In this embodiment, the telescopic assembly 30 includes at least two sliding members 312 that fit in sequence. With such a configuration, when the height to which the shell assembly 10 can be extended remains unchanged, the length of the fixing member 311 and the sliding member 312 can be shortened, thereby preventing the retracted length of the heater 100 from being limited by the length of the fixing member 311 and the sliding member 312. In addition, the two adjacent sliding members 312 are also connected by threads, so that the telescopic length of the two sliding members 312 is adjustable and can be locked in any length range. In addition, at this time, the sliding member 312 located between the two sliding members 312 or between the fixed member 311 and the sliding member 312 can be set as a sleeve with threads set inside and outside, so as to be threadedly connected to the two sliding members 312 respectively or to the fixed member 311 and the other sliding member 312 respectively, or the sliding member 312 located in the middle can be set as an internally threaded sleeve or stud, the fixed member 311 and the other sliding member 312 can be set as studs or sleeves, and the sliding member 312 located in the middle can be respectively inserted or sleeved to cooperate with the sliding member 312 threadedly.

[0256] Please refer to Figure 42 to Figure 45 In some embodiments of the present application, the telescopic assembly 30 further includes a driving member 37, which is transmission-connected to the sliding member 312 or the fixing member 311, and drives the sliding member 312 and the fixing member 311 to rotate relative to each other.

[0257] In this embodiment, a driving member 37 for driving the fixed member 311 and the sliding member 312 to rotate relative to each other is provided in the telescopic assembly 30. The driving member 37 can be a mechanical power structure such as a motor 371, a cylinder or a hydraulic cylinder, which can automatically provide a driving force to the fixed member 311 or the sliding member 312 to cause the fixed member 311 and the sliding member 312 to rotate relative to each other and slide relative to each other; the driving member 37 can also be an operating component such as a handle 374 that is configured to facilitate the user to operate the fixed member 311 and the sliding member 312, so that the user can drive the fixed member 311 and the sliding member 312 to rotate relative to each other through the handle 374, which is not limited here.

[0258] Please refer to Fig.44 and Fig.45In some embodiments of the present application, the driving member 37 is transmission-connected to the sliding member 312 , and drives the sliding member 312 to rotate relative to the fixing member 311 to slide up and down.

[0259] In this embodiment, the driving member 37 is connected to the sliding member 312 in a transmission manner so that the sliding member 312 can slide relative to the fixed member 311 by driving the sliding member 312 to rotate. With this arrangement, the fixed member 311 can be directly fixedly connected to the lower shell 111, and only one of the fixed member 311 and the sliding member 312 needs to be set as a movable structure, thereby simplifying the installation structure of the fixed member 311; of course, the fixed member 311 can also be rotatably arranged, so that a driving mode can be selected to rotate one of the fixed member 311 and the sliding member 312, or the fixed member 311 and the sliding member 312 can be rotated in opposite directions, thereby increasing the relative rotation speed of the fixed member 311 and the sliding member 312 and increasing the sliding speed of the sliding member 312.

[0260] It should also be noted that in this embodiment, the sliding member 312 can be rotated relative to the sliding shell 112, or the sliding member 312 can be fixedly connected to the sliding shell 112, and the sliding shell 112 can be rotated relative to the lower shell 111, so that when the sliding member 312 rotates, the sliding shell 112 is driven to rotate together, which is not limited here.

[0261] Please refer to Fig.42 In some embodiments of the present application, the fixing member 311 is rotatably disposed in the heat dissipation channel 113, and the driving member 37 is transmission-connected to the fixing member 311 to drive the fixing member 311 to rotate relative to the sliding member 312 so that the sliding member 312 slides up and down.

[0262] In this embodiment, the fixing member 311 is rotatably arranged in the heat dissipation channel 113, and a driving member 37 is arranged in transmission connection with the fixing member 311, so as to drive the fixing member 311 to rotate relative to the sliding member 312 and slide the sliding member 312. In this embodiment, the sliding member 312 can be directly fixed to the sliding housing 112 and kept fixed in a circumferential orientation relative to the lower housing 111, that is, the sliding member 312 can be slidably arranged only relative to the lower housing 111; or the sliding member 312 can be rotatably arranged relative to the lower housing 111. In this arrangement, when the driving member 37 drives the fixing member 311 to rotate, the sliding member 312 can be fixed so that the sliding member 312 does not rotate, or the sliding member 312 and the fixing member 311 can be rotated in opposite directions, thereby increasing the relative rotation speed of the fixing member 311 and the sliding member 312 and increasing the sliding speed of the sliding member 312.

[0263] Please refer to Fig.42 and Fig.43In some embodiments of the present application, the driving member 37 is a driving motor 371 , and the driving motor 371 is drivingly connected to the sliding member 312 or the fixing member 311 .

[0264] In this embodiment, the driving member 37 is a driving motor 371, which is in transmission connection with the sliding member 312 or the fixing member 311, and can automatically provide kinetic energy to make the sliding member 312 and the fixing member 311 rotate relative to each other, so that the sliding member 312 slides relative to the fixing member 311, thereby improving the automation degree of the heater 100 and improving the convenience of use of the heater 100. The transmission connection mode between the driving member 37 and the fixing member 311 or the sliding member 312 can be a belt transmission, a gear transmission, a chain transmission, a connecting rod transmission, or a combination transmission connection structure of at least two transmission structures, which is not limited here.

[0265] Please refer to Fig.42 and Fig.43 In some embodiments of the present application, the output shaft sleeve of the driving motor 371 is provided with a driving gear 372, the fixing member 311 or the sliding member 312 is connected to the driven gear 373, and the driving gear 372 and the driven gear 373 are in transmission meshing engagement.

[0266] In this embodiment, the driving motor 371 is connected to the fixed member 311 or the sliding member 312 through a gear transmission structure. The gear transmission structure at least includes a driving gear 372 sleeved on the output shaft of the driving motor 371 and a driven gear 373 sleeved on the fixed member 311 or the sliding member 312. The driving gear 372 and the driven gear 373 can be directly meshed or meshed through an intermediate transition gear transmission, which is not limited here. The gear transmission structure has a higher energy conversion characteristic on the one hand, and can accurately control the rotation distance or speed. At the same time, the meshing structure between the gears can play a locking role to avoid the motor 371 from having difficulty in controlling the load when the load inertia is higher than the inertia of the motor 371, which may lead to overshoot (exceeding the required rotation angle) or undershoot (insufficient rotation angle) problems, affecting the precise control of the extension and contraction amount of the sliding member 312 and the sliding housing 112.

[0267] Please refer to Fig.44 In some embodiments of the present application, the driving member 37 is a handle 374 , which is disposed on the top outer side of the housing assembly 10 and connected to the upper end of the sliding member 312 ;

[0268] And / or, the handle 374 is disposed on the outer side of the lower shell 111 , and the telescopic assembly 30 further includes a transmission structure, and the handle 374 is transmission-connected to the fixing member 311 via the transmission structure.

[0269] In this embodiment, the driving member 37 is a handle 374, and the handle 374 can be connected to the sliding member 312, or can be connected to the fixed member 311, or the handle 374 can be respectively connected to the sliding member 312 and the fixed member 311; the setting of the handle 374 can enable the user to independently operate the handle 374 to drive the fixed member 311 and the sliding member 312 to rotate relative to each other, thereby causing the sliding member 312 to slide; wherein, when the handle 374 is connected to the sliding member 312, the handle 374 can be rotatably arranged at the top of the housing assembly 10, and is connected to the sliding member 312 away from the fixed member. One end of the fixed member 311 is connected, and is used to rotate the handle 374 directly above the shell assembly 10 to rotate the sliding member 312 and slide up and down; when the handle 374 is connected to the fixed member 311 in transmission, since the fixed member 311 is arranged in the lower shell 111, the handle 374 needs to be located outside the shell assembly 10 for user operation. At this time, the handle 374 and the fixed member 311 can be connected through a transmission structure, wherein the transmission structure can be at least one of a bevel gear transmission, a belt transmission, a chain transmission or a connecting rod transmission, which is not limited here.

[0270] In some embodiments, a handle 374 is respectively provided to be transmission-connected with the sliding member 312 and the fixed member 311, so that a user can choose to drive either the sliding member 312 or the fixed member 311 to rotate, or can rotate the fixed member 311 and the sliding member 312 in opposite directions, thereby increasing the relative rotation speed of the fixed member 311 and the sliding member 312 and increasing the sliding speed of the sliding member 312.

[0271] Please refer to Fig.42 In some embodiments of the present application, the housing assembly 10 further includes a support plate 18, which is disposed in the lower shell 111 and divides the lower shell 111 into a heating space 181 and an air inlet space 182 arranged in an upper and lower manner. The support plate 18 is provided with a ventilating opening connecting the air inlet space 182 and the heating space 181;

[0272] The heating assembly 20 is disposed on the support plate 18 and is located in the heating space 181 . The fixing member 311 passes through the support plate 18 and is at least partially located in the air inlet space 182 .

[0273] In this embodiment, a support plate 18 is provided in the shell assembly 10 for fixing and supporting the heating assembly 20, and dividing the internal space of the bottom mounting shell 11 into an air inlet space 182 and a heating space 181 which are stacked from bottom to top. An air inlet 1111 connected to the air inlet space 182 is provided on the mounting shell 11. The air inlet 1111 can be provided on the side wall of the mounting shell 11, or can be provided on the bottom of the mounting shell 11. With such a configuration, after the airflow enters the shell assembly 10 from the air inlet 1111 under the action of the temperature difference between the inside and the outside and the air pressure, it will flow through the heating assembly 20 and be heated, and then continue to flow upward and be discharged outward from the top heat dissipation port 1121. An avoidance hole is provided on the support plate 18, so that one end of the telescopic assembly 30 can pass through the avoidance hole to enter the air inlet space 182 below the support plate 18, and the air inlet space 182 is used to accommodate part of the telescopic assembly 30 to avoid increasing the height of the shell assembly 10 when it is extended and stored. Please refer to Fig.42 In some embodiments of the present application, the shell assembly 10 further includes a support frame 183 , which is fixed to a side of the support plate 18 facing the air inlet space 182 and connected to the telescopic assembly 30 .

[0274] Please refer to Fig.42 In some embodiments of the present application, the air inlet space 182 is provided with a driving member 37 and is transmission-connected to the fixing member 311 to drive the fixing member 311 to rotate relative to the sliding member 312 to make the sliding member 312 rise and fall.

[0275] In this embodiment, the driving member 37 is arranged in the air inlet space 182 and is transmission-connected with the fixing member 311, so as to drive the fixing member 311 to rotate relative to the sliding member 312, so that the sliding member 312 slides up and down relative to the fixing member 311; it can be understood that when the heater 100 is in operation, the external cold air enters the air inlet space 182 from the air inlet 1111 on the side wall or bottom of the air inlet space 182, enters the heating space 181 through the vent on the support plate 18, and is heated by the heating component 20 to increase the temperature, and the heated air rises upward and is discharged outward from the heat dissipation port 1121 at the top of the heater 100; the driving member 37 is arranged in the air inlet space 182 with a lower temperature to prevent the driving member 37 from being continuously heated and easily damaged, and when the driving member 37 includes a power unit such as a motor 371, the continuously flowing cold air can be used to dissipate the heat of the motor 371, and the heat generated by the motor 371 can be used to heat the cold air, thereby improving energy utilization efficiency.

[0276] It should be noted that when the driving member 37 is configured as a combination of a handle 374 and a transmission unit, and the user operates the handle 374 to drive the fixing member 311 to rotate, the transmission unit can be simply disposed in the air inlet space 182 so that the handle 374 is exposed on the outside of the shell assembly 10 for easy user operation.

[0277] Please refer to Fig.43 In some embodiments of the present application, the telescopic assembly 30 further includes a connecting seat 314, which is disposed around at least part of the circumference of the sliding member 312 and connected to the sliding housing 112 located at the top.

[0278] It can be understood that the present application requires that the sliding of the sliding member 312 drives the sliding housing 112 to slide; in this embodiment, a connecting portion is convexly provided on the side wall of the sliding member 312, so that the connecting portion abuts or connects with the top inner wall of the sliding housing 112, so that when the sliding member 312 slides, the sliding housing 112 is supported by the connecting portion to make the sliding housing 112 slide up and down; when the connecting portion is fixedly connected to the sliding housing 112, if the sliding member 312 is rotatable, the sliding member 312 can drive the sliding housing 112 to rotate together, and drive the sliding housing 112 to slide up and down. The setting of the connecting seat 314 increases the contact and connection area between the sliding member 312 and the sliding housing 112, and improves the connection strength between the sliding member 312 and the sliding housing 112.

[0279] Combined with reference Fig.44 and Fig.45 In some embodiments of the present application, the telescopic assembly 30 further includes a fixing seat 315 , the fixing seat 315 is fixed to the lower shell 111 , and the fixing member 311 is disposed on the fixing seat 315 .

[0280] In this embodiment, the telescopic assembly 30 also includes a fixing seat 315 for installing the fixing member 311. The fixing seat 315 is fixedly connected to the lower shell 111 and is connected to one end of the fixing member 311. Such a configuration also increases the connection area between the fixing member 311 and the lower shell 111, improves the connection strength between the fixing member 311 and the lower shell 111, and improves the structural stability of the heater 100.

[0281] It should be noted that Fig.42 and Fig.44 The cross-sectional structure is used to illustrate the structural form of the internal telescopic component 30. Although the roller 16 is not shown, the arrangement of the roller 16 in the housing component 10 which is sequentially sleeved from bottom to top and from outside to inside can be referred to. Fig.42 and Fig.44 Rollers 16 are disposed between the mounting shells 10 in the illustrated embodiment, which will not be described in detail herein.

[0282] Please refer to Figure 26 to Figure 29 In some embodiments of the present application, the mounting shells 11 of the housing assembly 10 are sequentially mounted from bottom to top and from inside to outside.

[0283] In the present embodiment, at least two mounting shells 11 of the shell assembly 10 are sequentially arranged from the inside to the outside, so that among the two adjacent mounting shells 11, the mounting shell 11 located on the outside is covered on the top of the mounting shell 11 on the inside. With this arrangement, when looking down from above the heater 100, only the mounting shell 11 located at the top can be seen, and the fitting gap between the two adjacent mounting shells 11 cannot be seen, which makes the product more integrated and can also prevent foreign debris from falling into the heat dissipation channel 113 from the gap between the mounting shells 11, thereby improving the safety of the heater 100.

[0284] It should be noted that Fig.28 and Fig.29 The cross-sectional structure is used to illustrate the sleeve structure of the housing assembly 10. Although the roller 16 is not shown, the arrangement of the roller 16 in the housing assembly 10, which is sleeved from bottom to top and from outside to inside, can be referred to. Fig.28 and Fig.29 Rollers 16 are disposed between the mounting shells 10 in the illustrated embodiment, which will not be described in detail herein.

[0285] Please refer to Figure 1 In some embodiments of the present application, the mounting shells 11 of the housing assembly 10 are sequentially mounted from bottom to top and from outside to inside.

[0286] In the present embodiment, each mounting shell 11 is sequentially arranged from bottom to top and from outside to inside. With such arrangement, the mounting shell 11 at the bottom is larger in size and the center of gravity of the heater 100 is lower, thereby making it easier to place the heater 100 stably and reducing the risk of tipping over of the heater 100, thereby improving the safety of the use of the heater 100.

[0287] In addition, in some embodiments, the same type of telescopic assembly 30 may be used in the heater 100 to enable the housing assembly 10 to have different fitting modes, for example, Figures 1 to 3 The mounting shell 111 of the housing assembly 10 is installed from bottom to top and from outside to inside in sequence. Figure 26 to Figure 29 The mounting shells 111 of the middle housing assembly 10 are sequentially mounted from bottom to top and from inside to outside.

[0288] Please refer to Figure 1 In some embodiments of the present application, an operating member 60 is disposed on the outer wall of the housing assembly 10, and the operating member 60 is electrically connected to the heating assembly 20, so as to control the operating state of the heating assembly 20 through the operating member 60. The operating member 60 may be a control button, a knob, a touch screen control assembly, etc., which are not limited here, so that the user can control the heating assembly 20 by operating the operating member 60, for example, controlling the switch of the heating assembly 20 or the heating power of the heating assembly 20.

[0289] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A heater, characterized in that: include: A shell assembly, the shell assembly comprising at least two mutually nested mounting shells, at least two rollers spaced circumferentially disposed between the two mutually nested mounting shells, and the shell assembly forms a heat dissipation channel through the sliding fit of the rollers, and the shell assembly is provided with a heat dissipation port; and A heating component is arranged in the heat dissipation channel.

2. The heater according to claim 1, characterized in that At least two groups of first guide rails and first brackets are arranged at intervals along the circumferential direction between the two mutually nested mounting shells, the first brackets are provided with sliding grooves, and the first guide rails are slidably connected to the sliding grooves; The roller is arranged between the first guide rail and the groove wall of the first sliding groove.

3. The heater according to claim 2, characterized in that: The roller is rotatably arranged on the bottom wall of the slide groove and is in rolling contact with the first guide rail.

4. The heater according to claim 3, characterized in that: The slide groove has two groove side walls arranged opposite to each other, and the rollers are arranged on both groove side walls.

5. The heater according to claim 2, characterized in that: The two mutually nested installation shells are defined as an outer shell and an inner shell, and one end of the inner shell is inserted into the outer shell; The first guide rail is arranged on the inner side wall of the outer shell, and the first bracket and the roller are both arranged on one end of the inner shell inserted into the outer shell.

6. The heater according to claim 5, characterized in that: The housing assembly further comprises an auxiliary pulley structure, which comprises a second bracket and a pulley, wherein the second bracket is fixedly connected to the first guide rail, and the pulley is rotatably disposed on the second bracket and in rolling contact with the outer wall surface of the inner shell.

7. The heater according to claim 6, characterized in that: An opening is provided at one end of the outer shell for passing the inner shell, and the auxiliary pulley structure is provided at one end of the first guide rail close to the opening and is arranged opposite to the first bracket, and moves closer to or farther from each other when the two mounting shells slide relative to each other; The first bracket and the auxiliary pulley structure can abut against each other, so that the two mounting shells are limited and locked in the extension direction and can rise synchronously.

8. The heater according to claim 7, characterized in that The second bracket has two side plates arranged opposite to each other and a top plate located between the two side plates, the pulley is rotatably arranged on the top plate, and the first guide rail is clamped between the two side plates and the top plate; Alternatively, the first guide rail is provided with a recessed mounting groove, and the second bracket is arranged in the mounting groove.

9. The heater according to claim 5, characterized in that: The housing assembly comprises at least three mounting shells which are fitted in sequence, wherein the three mounting shells are defined as an outer mounting shell, a middle mounting shell and an inner mounting shell which are fitted in sequence; The first guide rail and the first bracket between the outer mounting shell and the middle mounting shell are the outer shell inner guide rail and the middle shell bracket, and the first guide rail and the first bracket between the middle mounting shell and the inner mounting shell are the middle shell inner guide rail and the inner shell bracket. One end of the middle shell inner guide rail protrudes from the middle mounting shell and fixes the middle shell bracket.

10. The heater according to claim 9, characterized in that A plug-in portion is protruded from one side of the middle bracket facing the inner guide rail of the middle shell, and the plug-in portion is plugged into the inner guide rail of the middle shell.

11. The heater according to any one of claims 1 to 10, characterized in that: The housing assembly further comprises an anti-rotation wheel structure, the anti-rotation wheel structure comprising a second guide rail, a third bracket and an anti-rotation wheel, the second guide rail and the third bracket are respectively arranged on two mutually sleeved side walls of the mounting housing; The second guide rail is recessed with a limiting groove, the anti-rotation wheel is rotatably arranged on the third bracket, and is located in the limiting groove and rollably abuts against the groove side wall of the limiting groove.

12. The heater according to any one of claims 1 to 10, characterized in that: The heater also includes a telescopic component, which is at least drivingly connected to the mounting shell located at the top to drive the shell component to telescope.

13. The heater according to any one of claims 1 to 10, characterized in that: The mounting shells of the housing assembly are sequentially mounted from bottom to top and from inside to outside; Alternatively, the mounting shells of the housing assembly are mounted sequentially from bottom to top and from outside to inside.

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