Warm air blower

Abstract

The invention relates to the technical field of household appliances, and discloses a fan heater which comprises a machine head, a base and a supporting frame, a containing groove is formed in the base, and the machine head is arranged in the containing groove and fixedly connected with the base; the support frame is detachably connected with the machine head, and the warm air blower has a ground use state and a table top use state: when the warm air blower is in the ground use state, the support frame is connected with the machine head, so that the machine head and the base are supported at a set height position above the ground; when the warm air blower is in the table top use state, the supporting frame is separated from the machine head, so that the machine head can be directly arranged on the table top through the base. By means of the design, when the use scene of the fan heater is replaced, only the supporting frame and the machine head need to be disassembled, the supporting frame and the base do not need to be disassembled, or the base and the machine head do not need to be installed, the disassembling and assembling steps are simplified, use is more convenient and faster, and the user experience is better.

Description

Technical Field

[0001] This invention relates to the field of home appliance technology, specifically to a space heater. Background Technology

[0002] Currently, in order to expand the usage scenarios of the heater and achieve both floor and tabletop use, technicians in this field usually install a detachable support rod between the base and the unit. When you want to place it on the ground, you install the support rod between the unit and the base. When you want to place it on a table, you remove the support rod and then connect the base and the unit to place it on the table. The entire disassembly and assembly process is cumbersome and affects the user experience. Summary of the Invention

[0003] In view of this, the present invention provides a space heater to solve the problem that the existing space heaters that can be used on both floors and tables have cumbersome disassembly and assembly steps when switching usage scenarios, which affects the user experience.

[0004] This invention provides a heater, comprising: Machine head; The base has a receiving groove that fits the bottom of the machine head. The bottom of the machine head is placed in the receiving groove and connected and fixed to the base. The support frame is detachably connected to the unit head, and the heater can be used on the floor or on a countertop. When the heater is in use on the ground, the support frame is connected to the unit head to support the unit head and base at a set height above the ground; When the heater is in use on the countertop, the support frame is separated from the unit head so that the unit head can be placed directly on the countertop via the base.

[0005] Beneficial Effects: The base provides support for the unit head after the support frame is removed, allowing it to be placed directly on a table. The base features a matching groove for the unit head's bottom, accommodating various unit head shapes, increasing the versatility of the heater's design. It also ensures the unit head fits perfectly into the base, improving stability and tightness. Furthermore, by fixing the unit head and base as a single unit and allowing for detachable connection between the support frame and connector, the heater can be placed on the floor by simply connecting the support frame to the unit head. Conversely, when using the heater on a table, the support frame is removed, and the unit head and base are placed directly on the table. This design simplifies the process by requiring only the support frame and unit head to be disassembled when changing the heater's usage scenario, eliminating the need to disassemble the support frame and base or install the base and unit head separately. This streamlined process makes the heater more convenient and faster to use, improving the user experience and resolving the issue of cumbersome disassembly and assembly procedures in existing floor-standing / tabletop heaters that negatively impacted user experience when switching usage scenarios.

[0006] In one alternative implementation, the support frame is threadedly connected to the machine head. Beneficial effects: The threaded connection between the support frame and the machine head is not only reliable and stable, but also eliminates the need for additional connecting parts, reducing the number of parts and preventing parts loss. Furthermore, the support frame and machine head can be disassembled and assembled without the aid of external tools, improving the convenience of installation and maintenance.

[0007] In one alternative embodiment, the support frame includes: Multiple support columns are fixedly installed on the machine head, and multiple adapter pipes are threadedly connected to the multiple support columns and multiple adapter pipes in a one-to-one correspondence. At least one of the multiple adapter pipes is interference-fitted into the base.

[0008] Beneficial effects: The combination of multiple support columns and multiple adapter pipes makes the connection between the unit head and the support frame more secure and stable, further improving the balance and stability of the heater when placed on the ground. Furthermore, by interfering-fitting at least one of the multiple adapter pipes into the base, the adapter pipe can not only be connected and fixed to the support frame but also to the base, achieving multiple uses and further simplifying the structure.

[0009] In one alternative embodiment, the base is provided with a through channel for inserting the adapter pipe, and the through channel is provided with multiple ribs spaced apart circumferentially.

[0010] Beneficial effects: By incorporating multiple ribs along the inner circumference of the through-channel, the ribs make line or small-area contact with the outer wall of the adapter tube, compared to direct surface contact with the inner wall of the through-channel. Under the same clamping force, line contact generates greater pressure than surface contact, thus significantly increasing static friction. This ensures the adapter tube is firmly fixed to the base, resisting vibration and a certain axial tensile force, preventing accidental loosening. Furthermore, because the through-channel is a complete, smooth cylindrical hole, achieving an interference fit (i.e., the outer diameter of the adapter tube is slightly larger than the inner diameter of the through-channel) would be very difficult during adapter tube insertion, requiring significant force and potentially causing the base or adapter tube to crack due to insufficient clearance between materials. The ribs provide elastic deformation space for the interference fit. When a slightly larger adapter tube is inserted, it compresses these ribs, allowing the ribs themselves and their root material to undergo slight elastic deformation, absorbing the interference and making the insertion process feasible and smooth.

[0011] In one alternative embodiment, the support column has three columns, and three adapter pipes are fixedly installed on the machine head, the three adapter pipes being distributed in an isosceles triangle. The base has a through channel corresponding to the middle adapter pipe, and the two adapter pipes on both sides have clearance sections.

[0012] Beneficial effects: The three connecting pipes arranged in an isosceles triangle on the machine head form a stable support system. The central connecting pipe, through the elastic interference fit between the ribs and the through channel, precisely determines the center position of the machine head on the base plane and bears the main torque. When the machine head is subjected to torsional force, this main support point is responsible for transmitting most of the torque. The clearances provided on the corresponding connecting pipes on both sides restrict the rotational freedom of the machine head around the axis of the central connecting pipe, ensuring that the angular direction of the machine head is uniquely determined. Furthermore, if all three adapters use an interference fit, the positional accuracy requirements for the three through channels will be extremely high. Any slight machining error will cause the three adapters to fail to align with the three through channels simultaneously. By changing the two sides to open space, the two adapters are allowed a small amount of movement within the open space, thus perfectly absorbing manufacturing tolerances and ensuring the feasibility and smoothness of assembly. During assembly, it is only necessary to accurately insert the middle adapter into the through channel of the base. After hearing a "click" or feeling the interference fit in place, the position of the entire machine head is basically determined. The adapters on both sides naturally fall into the open space, without the need for further fine adjustments, which greatly improves assembly efficiency and convenience.

[0013] In one alternative embodiment, the machine head is disc-shaped and includes an annular outer shell and a rear shell fixedly disposed at one end of the annular outer shell. The base includes: The base plate has an arc-shaped groove on its top surface that matches the shape of the annular outer shell. The side panel is fixedly installed on one side of the base plate, and the side panel is blocked and limited on the outside of the rear shell.

[0014] Beneficial effects: The disc-shaped unit head is more novel in appearance compared to conventional square or tower-style heaters on the market. Its large circular outer surface area allows for a wide, circular airflow around the front casing, while the central circular area displays a charcoal flame effect. The overall design is novel, with good airflow and heating performance, and a realistic charcoal flame visual effect, simultaneously meeting the needs of a large airflow area and a large charcoal flame display. The base uses a base plate and side plates. The base plate positions and cooperates with the annular outer shell of the unit head to support the entire connector, while the side plates restrain and limit the unit head from tilting backward, thus providing multi-directional limiting support and further improving the stability of the base and unit head assembly. In one alternative embodiment, an air inlet is provided on the rear shell, and a clearance portion is provided on the side plate to avoid the air inlet.

[0015] Beneficial effects: By setting the clearance part on the side plate, the support and limiting effect of the base on the head can be ensured, while the side plate can be effectively prevented from blocking the air intake.

[0016] In one alternative embodiment, the rear shell has an arcuate structure, and the inner wall of the side plate is constructed as a concave arcuate surface that matches the shape of the rear shell. The arcuate groove and the concave arcuate surface together form an accommodating groove.

[0017] Beneficial effects: By constructing the inner wall of the side plate as a concave arc surface that matches the shape of the rear shell, a qualitative change is achieved between the side plate and the rear shell, from "line contact" or "point contact" to "surface contact," increasing the contact area and improving the stability of the fit. Furthermore, the concave arc surface design also serves as a positioning guide, improving the assembly efficiency of the machine head and the base.

[0018] In one optional embodiment, the base is provided with a wiring structure for constraining the routing of the power cord of the heater, the wiring structure including: Cable routing holes are provided on the base plate. The cable routing channel is formed on the bottom surface of the base plate, and extends from the cable routing hole to the side plate on the back of the base. Beneficial effect: A cable routing hole is made at the position of the base where the power cord of the heater comes out, which leads to the bottom, so that the plug of the power cord can be extended. A cable routing hole extends from the bottom wall of the base to the back of the base, so that the cord can be routed out when the base is placed directly on the table without pressing on the power cord.

[0019] In one alternative embodiment, a winding structure is provided on the side plate, and the power cord is wound on the winding structure.

[0020] Beneficial effects: By creating a semi-circular cross-section groove at the bottom of the base, the protruding power cord is guided to the back of the base and can be wound around the cord winding structure on the back of the base, achieving the effect of storing the power cord. When the heater is not in use, the power cord can be wound around the winding structure, preventing the power cord from falling to the ground, saving space, avoiding wear and tear or tripping hazards caused by the power cord hanging to the ground, and making the wiring neat and orderly, as well as more refreshing and beautiful.

[0021] In one alternative embodiment, the winding structure includes two winding ribs spaced apart on the side plate; The power cord is wound between two winding ribs and pressed and confined to the side plate by the winding ribs.

[0022] Beneficial effects: By using two winding ribs spaced apart on the side plate, the power cord is wound between the two ribs. Compared to being wound on a single rib, the power cord can form a large arc curve between the two ribs, with very gentle bending. This can protect the internal conductors, greatly extend the life of the wire, reduce damage to the inside of the wire, and the outer sheath is not easily bent or damaged, reducing the risk of leakage. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the heater in its ground-level use state according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the heater in use on a countertop according to an embodiment of the present invention; Figure 3 This is an exploded view of the heater in an embodiment of the present invention; Figure 4 This is a structural schematic diagram of the base from the bottom view in an embodiment of the present invention; Figure 5 This is an isometric view of the base in an embodiment of the present invention; Figure 6 for Figure 5 Enlarged view of the structure at the central through-passage.

[0025] Explanation of reference numerals in the attached figures: 1. Head unit; 11. Adapter pipe; 12. Annular outer casing; 13. Rear casing; 130. Air inlet; 2. Base; 201. Receiving groove; 202. Through channel; 203. Rib; 2031. Guide surface; 21. Base plate; 22. Side plate; 221. Clearance section; 23. Clearance section; 24. Cable routing hole; 25. Cable routing groove; 26. Cable winding rib; 3. Support frame; 4. Power cord. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Currently, there are many heaters with simulated flame effects on the market, and the market is good. However, they are all square or tower-shaped heaters, which lack novelty in appearance. In order to increase the function of heaters that can be used on the countertop, realize the dual use of countertop and floor, and increase the usage scenarios and atmosphere effects, the traditional heaters are placed on the countertop high, the support frame takes up a lot of space, and cannot be placed stably after the support is removed.

[0031] The technicians installed a detachable support rod between the base and the unit. To place it on the ground, the support rod is installed between the unit and the base; to place it on a table, the support rod is removed, and then the base and unit are reconnected. This cumbersome assembly and disassembly process negatively impacts the user experience. Furthermore, because the power cord of the heater is typically quite long and has nowhere to be placed, it often falls to the ground. This poses several safety hazards: users may step on the cord, causing the plug to come loose or causing a trip; and the cord also looks messy and unsightly.

[0032] The following is combined Figures 1 to 6 The following describes embodiments of the present invention.

[0033] According to an embodiment of the present invention, in one aspect, the present invention provides a heater, including a head unit 1, a base 2, and a support frame 3. The base 2 has a receiving groove 201 adapted to the bottom of the head unit 1. The bottom of the head unit 1 is placed in the receiving groove 201 and is connected and fixed to the base 2. The support frame 3 is detachably connected to the head unit 1. The heater has a ground use state and a countertop use state: when the heater is in the ground use state, the support frame 3 is connected to the head unit 1 to support the head unit 1 and the base 2 at a set height above the ground; when the heater is in the countertop use state, the support frame 3 is separated from the head unit 1 so that the head unit 1 can be placed directly on the countertop via the base 2.

[0034] In the above embodiment, the base 2 can support the head unit 1 after the support frame 3 is removed, and it can be placed directly on the table. The receiving groove 201 on the base 2 that is compatible with the bottom of the head unit 1 can not only accommodate and install head units 1 of various shapes, improving the diversity of the heater's appearance, but also make the head unit 1 perfectly embedded in the base 2, improving the stability and compactness of the fit between the head unit 1 and the base 2. Furthermore, by fixing the unit head 1 and base 2 as a single unit and making the support frame 3 detachably connected to the connector, when the heater is to be used on the ground, simply connect the support frame 3 to the unit head 1. When the heater is to be used on a tabletop, simply remove the support frame 3 and place the unit head 1 and base 2 on the tabletop. Through the above design, when changing the usage scenario of the heater, only the support frame 3 and unit head 1 need to be disassembled and assembled, without having to disassemble the support frame 3 and base 2 or install the base 2 and unit head 1. This simplifies the disassembly and assembly steps, making it more convenient and faster to use, and improving the user experience. It solves the problem of cumbersome disassembly and assembly steps when switching usage scenarios in existing tabletop and floor-mounted heaters, which affects the user experience.

[0035] Based on the above embodiments, as a further defined embodiment, the bottom surface of the base 2 is flat, so that it can be placed stably on a table. The head unit 1 and the base 2 are detachably connected and fixed for easy packaging and transportation. Optionally, the head unit 1 and the base 2 are fixed together by means of threads, screws, interference fits, snap-fits, etc. In this embodiment, the base 2 can support the head unit 1 of the heater after the support frame 3 is removed, and can be placed stably on a horizontal surface. It can also cooperate with the support frame 3 without affecting the use on the ground.

[0036] Based on the above embodiments, as a further defined embodiment, the machine head 1 and the support frame 3 are fixed by means of threads, screws, interference fits, snap-fits, etc.

[0037] Based on the above implementation method, as a further defined implementation method, the support frame 3 passes through the base 2 and is connected to the machine head 1. In one alternative implementation, the support frame 3 is threadedly connected to the head 1. In the above embodiments, the threaded connection between the support frame 3 and the machine head 1 is not only reliable and stable, but also eliminates the need for additional connecting parts, reducing the number of parts and avoiding the problem of parts loss. Furthermore, the support frame 3 and the machine head 1 can be disassembled and assembled without the aid of external tools, improving the convenience of installation and maintenance.

[0038] Based on the above embodiments, as a further defined embodiment, the support frame 3 includes a support column, and an adapter pipe 11 is fixedly installed on the machine head 1. The outer periphery of the end of the support column is provided with an external thread, and the inner periphery of the adapter pipe 11 is provided with an internal thread. The support column and the adapter pipe 11 are threadedly connected through the internal and external threads.

[0039] In one optional embodiment, the support frame 3 includes multiple support columns, and multiple adapter pipes 11 are fixedly installed on the machine head 1. The multiple support columns and the multiple adapter pipes 11 are threadedly connected in a one-to-one correspondence, and at least one of the multiple adapter pipes 11 is interference-fitted into the base 2.

[0040] In the above embodiment, the cooperation of multiple support columns and multiple adapter pipes 11 makes the connection between the unit head 1 and the support frame 3 more secure and stable, further improving the balance and stability of the heater when placed on the ground. Furthermore, by interfering-fitting at least one of the multiple adapter pipes 11 into the base 2, the adapter pipe 11 can not only be fixed to the support frame 3 but also to the base 2, achieving multiple uses and further simplifying the structure.

[0041] Based on the above embodiments, as a further defined embodiment, the base 2 is provided with a through channel 202, which passes through the base 2. At least one of the plurality of adapter pipes 11 is interference-fitted into the through channel 202, and the support column can extend into the through channel 202 and be threadedly connected to the adapter pipe 11 inside it. The base 2 and the adapter pipe 11 are integrally injection molded.

[0042] In one optional embodiment, the base 2 is provided with a through channel 202 for the adapter pipe 11 to be inserted; the through channel 202 is provided with a plurality of ribs 203 at intervals along the circumference.

[0043] In the above embodiment, by providing multiple ribs 203 on the inner circumference of the through channel 202, the ribs 203 make line contact or small-area contact with the outer wall of the adapter pipe 11, rather than direct surface contact with the inner circumferential wall of the through channel 202. Under the same clamping force, line contact generates greater pressure than surface contact, thereby significantly increasing static friction. This ensures that the adapter pipe 11 is firmly fixed to the base 2, resisting vibration and a certain axial tensile force, and preventing accidental loosening. Furthermore, since the through channel 202 is a complete and smooth cylindrical hole, achieving an "interference fit" (i.e., the outer diameter of the adapter 11 is slightly larger than the inner diameter of the through channel 202) would be very difficult when inserting the adapter 11, requiring a lot of force, and the base 2 or the adapter 11 might be cracked due to the lack of clearance between the materials. The ribs 203 provide elastic deformation space for the interference fit. When a slightly larger adapter 11 is inserted, it will compress these ribs 203. The ribs 203 themselves and the material at their roots can undergo slight elastic deformation, thereby absorbing the interference and making the insertion process feasible and smooth.

[0044] Based on the above embodiments, as a further defined embodiment, a plurality of ribs 203 are evenly spaced along the circumference of the through channel 202, and the ribs 203 are located at one end of the through channel 202 near the machine head 1.

[0045] Based on the above embodiments, as a further defined embodiment, the end of the rib 203 near the machine head 1 is provided with an inclined guide surface 2031. The guide surface 2031 can play a guiding role, so that the adapter pipe 11 can be inserted into the through channel 202 more easily and smoothly.

[0046] In one optional embodiment, the support column has three columns, and three adapter pipes 11 are fixedly installed on the machine head 1. The three adapter pipes 11 are distributed in an isosceles triangle. The base 2 has a through channel 202 corresponding to the middle adapter pipe 11, and a clearance part 23 is provided for the two adapter pipes 11 on both sides.

[0047] In the above embodiment, three connecting pipes 11 arranged in an isosceles triangle on the machine head 1 form a stable support system. The middle connecting pipe 11, through the elastic interference fit between the rib 203 and the through channel 202, precisely determines the center position of the machine head 1 on the plane of the base 2 and bears the main torque. When the machine head 1 is subjected to torsional force, this main support point is responsible for transmitting most of the torque. The clearance parts 23 provided on the corresponding connecting pipes 11 on both sides restrict the rotational freedom of the machine head 1 around the axis of the middle connecting pipe 11, ensuring that the angular direction of the machine head 1 is uniquely determined. Furthermore, if all three adapter pipes 11 adopt an interference fit, the positional accuracy requirements of the three through channels 202 will be extremely high. Any slight machining error will cause the three adapter pipes 11 to fail to align with the three through channels 202 simultaneously. However, by changing the two sides to open space, the two adapter pipes 11 are allowed to have a slight range of movement within the open space, thus perfectly absorbing the manufacturing tolerance and ensuring the feasibility and smoothness of assembly. During assembly, it is only necessary to accurately insert the middle adapter pipe 11 into the through channel 202 of the base 2. After hearing a "click" or feeling the interference fit in place, the position of the entire machine head 1 is basically determined. The adapter pipes 11 on both sides naturally fall into the open space 23 without the need for further fine adjustment, which greatly improves the assembly efficiency and convenience.

[0048] In one optional embodiment, the machine head 1 is disc-shaped and includes an annular outer shell 12 and a rear shell 13 fixedly disposed at one end of the annular outer shell 12; the base 2 includes a base plate 21 and a side plate 22, the top surface of the base plate 21 is constructed with an arc-shaped groove side plate 22 that matches the shape of the annular outer shell 12, and is fixedly disposed on one side of the base plate 21, the side plate 22 being abutted and limited on the outside of the rear shell 13.

[0049] In the above embodiment, the head unit 1 is disc-shaped, which is more novel in appearance compared to conventional square or tower-shaped heaters on the market. Its large circular outer surface area allows for a large-area airflow around the front casing, while the central circular area displays a charcoal flame. The overall design is novel, with good airflow and heating effect, and a realistic simulated charcoal flame visual effect, simultaneously meeting the requirements of a large airflow area and a large charcoal flame display. The base 2 employs a base plate 21 and side plates 22. The base plate 21 is positioned and engaged with the annular outer shell 12 of the head unit 1 to support the entire connector, while the side plates 22 are positioned and limited on the outside of the rear shell 13 to prevent the head unit 1 from tilting backward. This provides multi-directional limiting support for the head unit 1, further improving the stability of the base 2 and the head unit 1.

[0050] Based on the above embodiments, as a further defined embodiment, the base plate 21 and the side plate 22 are integrally formed and vertically arranged. The base plate 21 and the side plate 22 are L-shaped from a frontal view and T-shaped from a top view. The head unit 1 also includes a mesh cover assembly and a charcoal fire assembly disposed at the other end of the annular outer shell 12. The mesh cover assembly is annular and includes an annular air outlet grille and an annular frame for mounting the air outlet grille. The air outlet grille is mounted on the annular outer shell 12 via the annular frame, and the grille gaps form the air outlet of the heater. The charcoal fire assembly is installed in the middle area of ​​the mesh cover assembly, which can create a visual effect of simulated flames. The side of the entire heater with the rear shell 13 is the back, and the side with the air outlet grille is the front.

[0051] In one alternative embodiment, an air inlet 130 is provided on the rear shell 13, and a clearance portion 221 for avoiding the air inlet 130 is provided on the side plate 22.

[0052] In the above embodiment, by providing the avoidance part 221 on the side plate 22, the support and limiting effect of the base 2 on the head 1 can be ensured, and the side plate 22 can be effectively prevented from blocking the air intake.

[0053] Based on the above embodiments, as a further defined embodiment, the rear shell 13 has a circular air intake area in the middle, and the air intake area has a plurality of air holes to form an air intake 130. The top edge of the side plate 22 has a corresponding D-shaped notch to form a clearance portion 221.

[0054] In one alternative embodiment, the rear shell 13 has an arcuate structure, and the inner wall of the side plate 22 is constructed as a concave arcuate surface that matches the shape of the rear shell 13. The arcuate groove and the concave arcuate surface together form an accommodating groove 201.

[0055] In the above embodiment, by constructing the inner wall of the side plate 22 as a concave arc surface that matches the shape of the rear shell 13, a qualitative change is achieved between the side plate 22 and the rear shell 13, from "line contact" or "point contact" to "surface contact," increasing the contact area and improving the stability of the fit. Furthermore, the design of the concave arc surface can also serve as a positioning guide, improving the assembly efficiency of the machine head 1 and the base 2.

[0056] Based on the above embodiments, as a further defined embodiment, the base plate 21 and the side plate 22 of the base 2 are both plate-shaped structures with a certain thickness, which can also be understood as block structures, making it convenient to process arc-shaped grooves and concave arc surfaces.

[0057] In one alternative embodiment, the base 2 is provided with a wiring structure for constraining the direction of the power cord 4 of the heater. The wiring structure includes a wiring hole 24 and a wiring groove 25. The wiring hole 24 is formed on the bottom plate 21 of the base 2. The wiring groove 25 is formed on the bottom surface of the bottom plate 21 and extends from the wiring hole 24 to the side plate 22 on the back of the base 2. In the above embodiment, a cable routing hole 24 is opened at the position of the base 2 corresponding to the outlet of the power cord 4 of the heater, extending to the bottom, so that the plug of the power cord 4 can be extended out. A cable routing hole 24 extends from the bottom wall of the base 2 to the back of the base 2, so that the cable can be routed out when the base 2 is placed directly on the table for use, without pressing the power cord 4.

[0058] Based on the above embodiments, as a further defined embodiment, the diameter of the wiring hole 24 is slightly larger than the diameter of the plug of the power cord 4 to ensure that the plug can pass through smoothly. The wiring groove 25 is a groove structure formed on the bottom wall of the base plate 21, specifically a groove with a semi-circular cross-section.

[0059] In one alternative embodiment, a winding structure is provided on the side plate 22, and the power line 4 is wound on the winding structure.

[0060] In the above embodiment, the power cord 4 is led to the back of the base 2 by a semi-circular cross-section groove opened at the bottom of the base 2, and can be wound around the winding structure on the back of the base 2 to achieve the effect of storing the power cord 4. When the heater is not in use, the power cord 4 can be wound around the winding structure so that the power cord 4 will not fall to the ground randomly, saving space and avoiding the power cord 4 from falling to the ground and causing wear or tripping hazards. It also makes the wiring neat and orderly, and the visual appearance is more refreshing and beautiful.

[0061] Based on the above embodiments, as a further defined embodiment, the winding structure is T-shaped. The T-shaped winding structure includes a pressing section and a winding section fixedly disposed in the middle of the pressing section. One end of the winding section is fixedly disposed in the middle of the pressing section, and the other end is fixedly disposed on the outer wall of the side plate 22. The above-mentioned winding end facilitates the winding of the power cord 4, and the pressing section can press the wound power cord 4 onto the side plate 22 to prevent the wound power cord 4 from unraveling and falling off.

[0062] As an alternative implementation, the winding structure can be a cylindrical structure, i.e., a winding post.

[0063] It should be explained that in this embodiment, "the inner wall of the side plate 22" refers to the side wall closer to the bottom plate 21, and "the outer wall of the side plate 22" refers to the side wall farther away from the bottom plate 21.

[0064] In one alternative embodiment, the winding structure includes two winding ribs 26 spaced apart on the side plate 22; the power cord 4 is wound between the two winding ribs 26 and pressed and limited on the side plate 22 by the winding ribs 26.

[0065] In the above embodiment, the power cord 4 is wound between two winding ribs 26 spaced apart on the side plate 22. Compared with being wound on a single winding rib 26, the power cord 4 can form a large arc curve between the two winding ribs 26, and the bending is very gentle. This can protect the internal conductors, greatly extend the life of the wire, reduce damage to the inside of the wire, and the outer sheath is not easily bent or damaged, thus reducing the risk of leakage.

[0066] Based on the above embodiments, as a further defined embodiment, the winding rib 26 is T-shaped or L-shaped. Preferably, the winding rib 26 is T-shaped.

[0067] In one alternative implementation, four small rubber feet are provided at the four corners of the bottom wall of the base 2, adopting a four-point contact design. This effectively suppresses the shaking of the whole machine by evenly distributing the pressure, thus ensuring its stability.

[0068] The main inventive features of the space heater provided in this embodiment are as follows: 1. Design of base 2: The base 2 is designed to resemble the head 1 of the heater. To facilitate assembly, the positions of the two side support columns are avoided, and the position of the middle support column is opened to avoid gaps, i.e., through channel 202. Ribs 203 are designed at the entrance of through channel 202 to be assembled with the adapter pipe 11 on the head 1 by interference fit.

[0069] 2. Design of wiring and winding structure for base 2: A large through hole (i.e., cable routing hole 24) is made at the position of the power cord 4 outlet of the heater corresponding to the base 2, leading to the bottom. A semi-circular cable groove is made on the bottom wall of the base 2 to run to the back of the base 2. Two T-shaped cable winding structures are designed on the back of the base 2.

[0070] In this embodiment, the base 2 is designed to mimic the shape of the head unit 1, perfectly fitting the annular outer shell 12 and rear shell 13 of the heater and supporting the entire unit. The base 2 is assembled with the adapter pipe 11 of the head unit 1, and the way the support frame 3 is not exposed allows the base 2 to be adapted to both the support frame 3 and the absence of the support frame 3, significantly improving the product's versatility and enhancing the ambiance of the flame heater when used on a tabletop.

[0071] To address the pain point of power cord management, this application incorporates a cable routing and winding structure at the cable exit point of the base 2 corresponding to the head 1 and on the back. Specifically, a large through hole (slightly larger than the plug diameter) is made to the bottom of the base 2 at the location where the power cord 4 exits, allowing the plug of the power cord 4 to extend. A semi-circular cable groove extends from the bottom to the back of the base 2, ensuring that the cord can exit when the base 2 is placed directly on the countertop without being pressed down. A T-shaped winding structure is provided on the back of the base 2, allowing users to wind the power cord 4 around the back of the base 2 when the heater is not in use, preventing the cord from dangling to the ground and causing wear or tripping hazards.

[0072] The most obvious effects of the heater provided in this embodiment are: first, the base 2 can be assembled with the head 1 in two states, with or without a stand, and can be placed stably on a horizontal surface, making the whole unit usable on both a platform and the ground; second, the addition of a wiring structure and a winding structure solves the problem of where to place the power cord 4.

[0073] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the protection scope of the embodiments of this application.

Claims

1. A space heater, characterized in that, include: Machine head (1); The base (2) has a receiving groove (201) that is adapted to the bottom of the machine head (1). The bottom of the machine head (1) is placed in the receiving groove (201) and is connected and fixed to the base (2). The support frame (3) is detachably connected to the head unit (1), and the heater has a ground use state and a countertop use state: When the heater is in use on the ground, the support frame (3) is connected to the head (1) to support the head (1) and the base (2) at a set height above the ground; When the heater is in use on the table, the support frame (3) is separated from the head (1) so that the head (1) can be placed directly on the table via the base (2).

2. The heater according to claim 1, characterized in that, The support frame (3) is threadedly connected to the machine head (1).

3. The heater according to claim 1, characterized in that, The support frame (3) includes: Multiple support columns are fixedly provided on the machine head (1). The multiple support columns and multiple adapter pipes (11) are threadedly connected one-to-one, and at least one of the multiple adapter pipes (11) is interference-fitted into the base (2).

4. The heater according to claim 3, characterized in that, The base (2) is provided with a through channel (202) for the adapter pipe (11) to be inserted, and the through channel (202) is provided with a plurality of ribs (203) spaced apart in the circumferential direction.

5. The heater according to claim 3, characterized in that, The support column has three columns, and three adapter pipes (11) are fixedly installed on the machine head (1). The three adapter pipes (11) are distributed in an isosceles triangle. The base (2) has a through channel (202) for interference fitting of the middle adapter pipe (11), and the two adapter pipes (11) on both sides are provided with clearance parts (23).

6. The heater according to any one of claims 1 to 5, characterized in that, The machine head (1) is disc-shaped and includes an annular outer shell (12) and a rear shell (13) fixedly disposed at one end of the annular outer shell (12). The base (2) includes: The bottom plate (21) has an arc-shaped groove on its top surface that is adapted to the shape of the annular outer shell (12); Side plate (22) is fixedly disposed on one side of the bottom plate (21), and the side plate (22) abuts and limits the outer side of the rear shell (13).

7. The warm air blower according to claim 6, characterized in that, An air inlet (130) is provided on the rear shell (13), and a clearance part (221) is provided on the side plate (22) to avoid the air inlet (130). And / or, the rear shell (13) is an arc-shaped structure, and the inner wall of the side plate (22) is constructed as a concave arc surface that matches the shape of the rear shell (13), and the arc groove and the concave arc surface enclose the receiving groove (201).

8. The warm air blower according to claim 6, characterized in that, The base (2) is provided with a wiring structure for constraining the routing of the power cord (4) of the heater, the wiring structure including: Wiring holes (24) are provided on the base plate (21); A wiring groove (25) is formed on the bottom surface of the base plate (21), and the wiring groove (25) extends from the wiring hole (24) to the side plate (22).

9. The warm air blower according to claim 8, characterized in that, The side plate (22) is provided with a winding structure, and the power line (4) is wound on the winding structure.

10. The heater according to claim 9, characterized in that, The winding structure includes two winding ribs (26) spaced apart on the side plate (22). The power cord (4) is wound between two winding ribs (26) and pressed and limited by the winding ribs (26) onto the side plate (22).

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