Anti-disassembly knob structure and water boiler

Abstract

The utility model provides an anti-disassembly knob structure and a water boiler, the anti-disassembly knob structure comprises a casing and a knob, the knob comprises a control panel, a control panel bracket and a rotary pressing assembly; the control panel bracket comprises a bracket body installed inside the casing and a bracket convex portion protruding from one side of the bracket body, the casing is provided with a mounting hole, the bracket convex portion is inserted in the mounting hole and abuts against the hole wall of the mounting hole, the control panel is arranged in the bracket body, the bracket convex portion is provided with a through hole connecting the mounting hole and the inside of the bracket body, and the rotary pressing assembly is clamped with the bracket convex portion through a snap structure. When the rotary pressing assembly is pulled by an external force, the rotary pressing assembly squeezes the bracket convex portion through the snap structure so that the bracket convex portion is subjected to an extrusion force from the inside to the outside, the hole wall of the mounting hole limits the deformation of the bracket convex portion, and can prevent the control panel bracket from being separated from the rotary pressing assembly, thereby preventing the rotary pressing assembly from being disassembled, and playing a role in preventing the knob from falling off or being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to an anti-disassembly knob structure and a water boiler. Background Art

[0002] The knob is a manual component that is turned by hand. It can be divided into continuous multiple rotations according to functional requirements. The rotation angle can reach 360°, and it can also be rotated in a fixed position. Chinese utility model patent CN218037802U discloses a waterproof knob screen, including a PCB board, a hollow encoder, a display device, a press bracket and a rotating outer ring. The hollow encoder is arranged on the PCB board, the rotating outer ring is mounted on the outside of the hollow encoder, and can drive the code disk of the hollow encoder to rotate. The press bracket passes through the rotating outer ring and is mounted on the hollow rotating shaft of the hollow encoder. The display device is arranged above the press bracket, and the rotating outer ring can rotate relative to the press bracket. However, during use, if the consumer uses external force or tools to pull the knob outward, it may cause the knob to fall off or even damage the knob. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an anti-disassembly knob structure and a water boiler. After the knob structure is installed, it can prevent the knob from falling off or being damaged due to consumers pulling it outwards.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A tamper-proof knob structure comprises a housing and a knob, wherein the knob comprises a control panel, a control panel bracket and a rotating and pressing assembly;

[0006] The control panel bracket includes a bracket body and a bracket protrusion protruding from one side of the bracket body. The casing is penetrated with a mounting hole, the bracket body is installed inside the casing, the bracket protrusion is inserted into the mounting hole and abuts against the hole wall of the mounting hole, the control panel is arranged in the bracket body, and the bracket protrusion is provided with a through hole, the through hole connects the mounting hole and the inside of the bracket body, one end of the rotating and pressing assembly is connected to the control panel, and the other end extends through the through hole to the outside of the casing, and the rotating and pressing assembly is clamped with the bracket protrusion through a snap structure.

[0007] Preferably, the buckle structure includes a first spring buckle and an annular groove. Among the bracket protrusion and the rotating pressing assembly, one is provided with the first spring buckle and the other is provided with the annular groove, and the first spring buckle is snapped into the annular groove.

[0008] Preferably, an annular retaining bar is provided on the inner side of the protruding portion of the bracket, the annular retaining bar encloses a through hole, and the buckle structure is located between the annular retaining bar and the protruding portion of the bracket.

[0009] Preferably, when the first spring buckle is arranged on the protruding portion of the bracket, the inner side of the first spring buckle has a first inclined surface and / or the lower side of the annular groove has a second inclined surface, and the first spring buckle slides into the annular groove through the guidance of the first inclined surface and / or the guidance of the second inclined surface so that the first spring buckle is engaged in the annular groove;

[0010] When the first spring buckle is arranged on the rotating pressing assembly, the outer side of the first spring buckle has a first inclined surface and / or the upper side of the annular groove has a second inclined surface. The first spring buckle slides into the annular groove through the guidance of the first inclined surface and / or the guidance of the second inclined surface so that the first spring buckle is engaged in the annular groove.

[0011] Preferably, an annular water retaining strip is provided at one end of the through hole close to the control panel.

[0012] Preferably, the rotary pressing assembly comprises a hollow encoder, a rotary bracket and a button bracket;

[0013] The hollow encoder is arranged on the control board;

[0014] One end of the rotating bracket is sleeved on the outer side of the rotating outer ring of the hollow encoder, the middle part of the rotating bracket is clamped with the bracket protrusion through a buckle structure, the other end of the rotating bracket extends to the outside of the housing through the through hole, and the outer diameter of one end of the rotating bracket away from the hollow encoder is smaller than the aperture of the mounting hole;

[0015] One end of the key bracket is clamped on the inner side of the fixed inner ring of the hollow encoder, and the other end of the key bracket extends to the outside of the housing through the through hole, and the key bracket is located on the inner side of the rotating bracket.

[0016] Preferably, a slot is provided on the inner wall of the housing, and a hook corresponding to the slot is provided on the bracket body, and the hook is engaged in the slot.

[0017] A water boiler comprises a water boiling assembly for heating a teapot and any of the above-mentioned anti-disassembly knob structures, wherein the water boiling assembly comprises a bottom cover arranged at the bottom of a casing, a winding cover is installed at the bottom of the bottom cover, and an annular winding space for winding a power cord is formed between the bottom cover and the winding cover.

[0018] Preferably, the bottom surface of the bottom cover is provided with a first ridge and a second ridge located inside the first ridge, a limiting groove is formed between the first ridge and the second ridge, and the top of the winding cover is provided with a third ridge matching the shape of the limiting groove, the third ridge is inserted into the limiting groove, and the power cord is wrapped around the outside of the first ridge.

[0019] Preferably, the annular winding space has a wire passing opening on one side facing the outside of the casing, and an elastic limiter is provided on the upper side and / or the lower side of the wire passing opening, and the elastic limiter is used to limit the power cord from escaping from the annular winding space through the wire passing opening.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The casing of the anti-dismantling knob structure is provided with a mounting hole, and the knob of the anti-dismantling knob structure includes a control panel, a control panel bracket and a rotary pressing assembly. The control panel bracket includes a bracket main body and a bracket protrusion protruding from one side of the bracket main body, the bracket protrusion is inserted into the mounting hole and abuts against the hole wall of the mounting hole, and the rotary pressing assembly is clamped with the bracket protrusion through a snap structure. When the rotary pressing assembly is pulled by external force, the rotary pressing assembly squeezes the bracket protrusion through the snap structure so that the bracket protrusion is subjected to an extrusion force from the inside to the outside. Since the bracket protrusion abuts against the hole wall of the mounting hole, the hole wall of the mounting hole limits the deformation of the bracket protrusion, which can prevent the control panel bracket from detaching from the rotary pressing assembly, thereby preventing the rotary pressing assembly from being removed, thereby preventing the knob from falling off or being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an exploded view of the anti-disassembly knob structure in the utility model;

[0023] Figure 2 It is a cross-sectional view of the anti-disassembly knob structure in the utility model;

[0024] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of the anti-disassembly knob structure in the utility model;

[0026] Figure 5 It is a three-dimensional structural schematic diagram of the control panel bracket in the utility model;

[0027] Figure 6 This is a front view of the rotating bracket in the utility model;

[0028] Figure 7 This is an exploded view of the water boiler in the utility model;

[0029] Figure 8 It is a half-section diagram of the water boiler in the utility model;

[0030] Fig. 9 It is a three-dimensional structural schematic diagram of the water boiling component in the utility model;

[0031] Fig.10 It is a three-dimensional structural schematic diagram of the winding cover in the utility model;

[0032] Fig.11 It is a half-section diagram of the water boiling component in the utility model;

[0033] Fig.12 It is a three-dimensional structural schematic diagram of the mounting bracket and the circuit board in the utility model.

[0034] Figure ID:

[0035] 1-housing; 11-mounting hole; 12-slot; 13-second screw column; 14-limiting block; 2-knob; 21-control board; 22-hollow encoder; 221-rotating outer ring; 222-fixed inner ring; 23-control board bracket; 231-bracket body; 2311-hook; 2312-butt surface; 232-bracket convex part; 2321-first spring buckle; 23211-first inclined surface; 233-through hole; 234-annular stop bar; 235-water stop bar; 24-rotating bracket; 241-annular groove; 242-second inclined surface; 25-button bracket; 26-display device; 261-display screen; 262 -lamp sheet; 263-lampshade; 27-spring; 28-sealing ring; 29-decorative cover; 3-water boiling assembly; 31-bottom cover; 311-first convex strip; 312-second convex strip; 313-limiting groove; 314-elastic limiting member; 315-first screw column; 316-clamping part; 32-connector; 33-mounting bracket; 331-claw; 3331-clamping hole; 332-extension part; 333-second spring buckle; 34-circuit board; 341-through hole; 4-winding cover; 41-third convex strip; 5-power cord; 6-first screw; 7-second screw; 8-third screw; 9-annular winding space; 91-wire passing port. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] See also Figures 1 to 4 The present application provides an anti-disassembly knob structure, including a housing 1 and a knob 2, the knob 2 including a control panel 21, a control panel bracket 23 and a rotary pressing assembly; the control panel bracket 23 includes a bracket body 231 and a bracket protrusion 232 protruding from one side of the bracket body 231, the housing 1 is provided with a mounting hole 11, the bracket body 231 is installed inside the housing 1, the bracket protrusion 232 is inserted into the mounting hole 11 and abuts against the hole wall of the mounting hole 11, the control panel 21 is arranged in the bracket body 231, the bracket protrusion 232 is provided with a through hole 233, the through hole 233 connects the mounting hole 11 and the inside of the bracket body 231, one end of the rotary pressing assembly is connected to the control panel 21, and the other end extends to the outside of the housing 1 through the through hole 233, and the rotary pressing assembly is clamped with the bracket protrusion 232 through a snap structure. When the rotary pressing assembly is pulled by external force, the rotary pressing assembly squeezes the bracket protrusion 232 through the snap-fit ​​structure so that the bracket protrusion 232 is subjected to a squeezing force from the inside to the outside. Since the bracket protrusion 232 abuts against the hole wall of the mounting hole 11, the hole wall of the mounting hole 11 limits the deformation of the bracket protrusion 232, which can prevent the control panel bracket 23 from detaching from the rotary pressing assembly, thereby preventing the rotary pressing assembly from being removed, thereby preventing the knob from falling off or being damaged.

[0039] Specifically, the buckle structure includes a first buckle and an annular groove. In the bracket protrusion 232 and the rotating pressing assembly, one is provided with a first buckle, and the other is provided with an annular groove, and the first buckle is engaged in the annular groove. Figures 2 to 6The bracket convex portion 232 is provided with a first spring buckle 2321, and the rotary pressing assembly is provided with an annular groove 241, and the first spring buckle 2321 is clamped in the annular groove 241. The bracket convex portion 232 of the control panel bracket 23 and the rotary pressing assembly are clamped in the annular groove 241 by the first spring buckle 2321, and the annular groove 241 of the rotary pressing assembly squeezes the first spring buckle 2321 of the bracket convex portion 232 so that the first spring buckle 2321 is subjected to an extrusion force from the inside to the outside. Since the bracket convex portion 232 where the first spring buckle 2321 is located abuts against the hole wall of the mounting hole 11, the hole wall of the mounting hole 11 limits the deformation of the first spring buckle 2321, which can prevent the bracket convex portion 232 of the control panel bracket 23 from being separated from the rotary pressing assembly, thereby preventing the rotary pressing assembly from being disassembled, and playing a role in preventing the knob from falling off or being damaged. In this embodiment, four first spring buckles 2321 are provided on the bracket protrusion 232, and the four first spring buckles 2321 are evenly distributed on the bracket protrusion 232. The bracket protrusion 232 is clamped with the rotating and pressing assembly through four clamping sites, which is helpful to prevent the rotating and pressing assembly from being disassembled. In fact, the number of the first spring buckles 2321 is not limited to four, and the number of the first spring buckles 2321 can be set to be more or less; when the number of the first spring buckles 2321 is three or four, it can be stably clamped on the annular groove 241 without affecting the rotation of the rotating and pressing assembly; when the number of the first spring buckles 2321 is one or two, it may affect the stability of the buckle structure; when the number of the first spring buckles 2321 is five or more, the rotation of the rotating and pressing assembly may be affected due to too many buckle sites.

[0040] When the rotary pressing assembly rotates, the control panel bracket 23 cannot rotate therewith. In order to ensure that the bracket protrusion 232 is always engaged with the rotary pressing assembly, the groove on the rotary pressing assembly that is engaged with the first spring buckle 2321 is an annular groove 241, which can prevent the control panel bracket 23 from rotating with the rotary pressing assembly.

[0041] In other embodiments, a first spring buckle is provided on the rotary pressing assembly, and an annular groove is provided on the bracket protrusion 232. The first spring buckle is snapped into the annular groove, and the rotary pressing assembly and the bracket protrusion 232 can also be snapped into place. The first spring buckle of the rotary pressing assembly squeezes the annular groove of the bracket protrusion 232 so that the annular groove is subjected to an extrusion force from the inside to the outside. Since the bracket protrusion 232 where the annular groove is located abuts against the hole wall of the mounting hole 11, the hole wall of the mounting hole 11 limits the deformation of the annular groove, which can prevent the bracket protrusion 232 of the control panel bracket 23 from being separated from the rotary pressing assembly, thereby preventing the rotary pressing assembly from being removed, thereby preventing the knob from falling off or being damaged.

[0042] Preferably, see Figures 2 to 6An annular stop bar 234 is provided on the inner side of the bracket protrusion 232, and the annular stop bar 234 encloses a through hole 233. The buckle structure is located between the annular stop bar 234 and the bracket protrusion 232. The setting of the annular stop bar 232 limits the activity space of the buckle structure and also facilitates the installation and alignment of the control panel bracket 23 and the rotating pressing assembly.

[0043] Preferably, see Figure 3 The first spring buckle 2321 has a first inclined surface 23211 on its inner side, and the first spring buckle 2321 slides into the annular groove 241 under the guidance of the first inclined surface 23211 so that the first spring buckle 2321 is engaged in the annular groove 241. The first inclined surface 23211 plays a role in guiding the first spring buckle 2321, making it easier for the first spring buckle 2321 to be engaged in the annular groove 241. Alternatively, the annular groove 241 has a second inclined surface 242 below, and the first spring buckle 2321 slides into the annular groove 241 under the guidance of the second inclined surface 242 so that the first spring buckle 2321 is engaged in the annular groove 241. More preferably, the inner side of the first spring buckle 2321 has a first inclined surface 23211, and the bottom of the annular groove 241 has a second inclined surface 242. The first spring buckle 2321 slides into the annular groove 241 through the contact guide of the first inclined surface 23211 and the second inclined surface 242 so that the first spring buckle 2321 is clamped in the annular groove 241.

[0044] When the first spring buckle is arranged on the rotating pressing assembly and the annular groove is arranged on the bracket protrusion 232, the outer side of the first spring buckle has a first inclined surface and / or the upper side of the annular groove has a second inclined surface, and the first spring buckle slides into the annular groove through the guidance of the first inclined surface and / or the guidance of the second inclined surface so that the first spring buckle is clamped in the annular groove.

[0045] The notch of the annular groove 241 of this embodiment faces the outside of the casing 1, so that the moisture flowing in from the gap between the mounting hole 11 and the rotating pressing assembly can gather on the annular groove 241, and slide to the bottom of the annular groove 241 under the action of gravity, and then flow out from the gap between the mounting hole 11 and the rotating pressing assembly, thereby preventing moisture from entering the control panel 21 and playing a waterproof role.

[0046] Preferably, see Figure 2 , Figure 3 and Figure 5 An annular water retaining strip 235 is provided at one end of the through hole 233 near the control board 21. When too much water enters the annular groove 241, the water will overflow the annular groove 241 and enter the control board 21 from the through hole 233. By providing the water retaining strip 235, the water overflowing from the annular groove 241 is prevented from entering the control board 21 from the through hole 233, further improving the waterproof effect of the anti-disassembly knob structure. In this embodiment, the water retaining strip 235 is formed by the inner side of the bracket protrusion 232 protruding toward the central axis direction of the through hole 233.

[0047] Specifically, the rotary pressing assembly includes a hollow encoder 22, a rotary bracket 24 and a button bracket 25. The hollow encoder 22 is arranged on the control board 21. The outer wall of the hollow encoder 22 has a rotary outer ring 221 that can rotate around the central axis of the hollow encoder 22. One end of the rotary bracket 24 is sleeved on the outer side of the rotary outer ring 221 of the hollow encoder 22. When the rotary bracket 24 rotates, the rotary outer ring 221 of the hollow encoder 22 can be driven to rotate. The middle part of the rotary bracket 24 is clamped with the bracket protrusion 232 through a buckle structure. The other end of the rotary bracket 24 It extends through the through hole 233 to the outside of the housing 1; the hollow encoder 22 has an inner cavity inside, and the inner cavity is for the button bracket 25 to be placed and installed. One end of the button bracket 25 is clamped on the inner side of the fixed inner ring 222 of the hollow encoder 22, and the other end of the button bracket 25 extends through the through hole 233 to the outside of the housing 1, and the button bracket 25 is located on the inner side of the rotating bracket 24. When the button bracket 25 is pressed, it cooperates with the hollow encoder 22 and the control board 21 to realize the control of the electrical appliance. The button bracket 25 in the knob is used to control the electrical appliance, which is a prior art and will not be repeated here.

[0048] The rotary pressing assembly also includes a display device 26, which is mounted on the end of the button bracket 25 away from the hollow encoder 22. When the display device 26 is pressed, the button bracket 25 is also pressed, and the button bracket 25 cooperates with the hollow encoder 22 and the control panel 21 to realize the control of the electrical appliance; in this embodiment, the display device 26 includes a display screen 261, a light sheet 262 and a lampshade 263, and the display screen 261 and the light sheet 262 are sequentially mounted on the end of the button bracket 25 away from the hollow encoder 22. A display screen mounting groove and a light sheet mounting groove can be respectively provided on the button bracket 25 for the display screen 261 and the light sheet 262 to be installed, and the lampshade 263 covers the end of the button bracket 25 away from the hollow encoder 22 to cover the display screen 261 and the light sheet 262; preferably, positioning points (not shown in the figure) are respectively provided in the display screen mounting groove and the light sheet mounting groove to facilitate the positioning and installation of the display screen 261 and the light sheet 262. The knob 2 also includes a spring 27, which is sleeved outside the key bracket 25, and the two ends of the spring 27 respectively abut against the bent portion in the middle of the key bracket 25 and the bent portion in the middle of the rotating bracket 24; the rotating pressing assembly also includes a sealing ring 28 and a decorative cover 29, the sealing ring 28 is sleeved outside the lampshade 263, and the sealing ring 28 contacts the inner wall of the end of the rotating bracket 24 away from the hollow encoder 22 to prevent external moisture from entering the knob from the gap between the lampshade 263 and the rotating bracket 24 and damaging the control board 21, and the decorative cover 29 is sleeved outside the end of the rotating bracket 24 away from the hollow encoder 22, and the outer diameter of the decorative cover 29 is larger than the aperture of the mounting hole 11. After the decorative cover 29 is installed, the rotating bracket 24 cannot fall out of the mounting hole 11. Furthermore, the outer wall of the decorative cover 29 is provided with a number of anti-slip grooves for increasing the friction between the decorative cover 29 and the human hand.

[0049] Preferably, the outer diameter of the end of the rotating bracket 24 away from the hollow encoder 22 is smaller than the aperture of the mounting hole 11, so that the end of the rotating bracket 24 away from the hollow encoder 22 can extend out of the mounting hole 11 from the inner side of the housing 1. During installation, the display device 26 is first mounted on the end of the key bracket 25 away from the hollow encoder 22, and then the sealing ring 28 is sleeved on the outer side of the lampshade 263 of the display device 26, and then the hollow encoder 22 is mounted on the control board 21, and the control board 21 is mounted in the bracket body 231 of the control board bracket 23, and then the rotating bracket 24 is sleeved on the outer side of the rotating outer ring 221 of the hollow encoder 22 and the bracket protrusion 232 of the control board bracket 23 is clamped with the rotating bracket 24, and then the spring 27 is sleeved outside the key bracket 25, and finally one end of the key bracket 25 is clamped on the inner side of the fixed inner ring 222 of the hollow encoder 22 and the spring 27 is abutted against the key bracket 25 and the rotating bracket 24, and the assembly of the rotary pressing component is completed.

[0050] Preferably, see Figure 4 and Figure 5, the inner wall of the housing 1 is provided with a slot 12, and the bracket body 231 is provided with a hook 233 corresponding to the slot 12, and the hook 233 is engaged in the slot 12, so that the control panel bracket 23 is installed in the housing 1. In this embodiment, three slots 12 are provided on the inner wall of the housing 1, and correspondingly, three hooks 233 are provided on the bracket body 231, and the control panel bracket 23 is firmly installed in the housing 1 through three engaging positions. The three engaging positions are distributed in a triangular shape, and less than three engaging positions may result in insufficient installation stability of the control panel bracket 23. Of course, the number of slots 12 and hooks 233 can be more, but too many will lead to inconvenience in disassembly and are not conducive to maintenance.

[0051] Preferably, see Figure 2 , Figure 4 and Figure 5 The inner wall of the housing 1 is provided with a limit block 14, and the bracket body 231 has a contact surface 2312. The limit block 14 abuts against the contact surface 234 to limit the distance that the bracket protrusion 232 extends into the mounting hole 11, thereby playing a role in installation positioning.

[0052] See also Figures 7 to 11 The present application also provides a water boiler, including a water boiling component 3 for heating a teapot and the above-mentioned anti-disassembly knob structure, the water boiling component 3 includes a bottom cover 31 fixed to the bottom of the housing 1, a winding cover 4 is installed at the bottom of the bottom cover 31, and an annular winding space 9 for winding a power cord 5 is formed between the bottom cover 31 and the winding cover 4. After the winding cover 4 is installed, the annular winding space 9 between the bottom cover 31 and the winding cover 4 can be used to wind the power cord 5, which is convenient for storing the power cord 5. The provision of the winding cover 4 can avoid the need to open a winding groove on the bottom cover 31, thereby reducing the manufacturing difficulty of the bottom cover 31.

[0053] Preferably, see Figures 8 to 10 In order to facilitate the installation and alignment of the bottom cover 31 and the winding cover 4, the bottom surface of the bottom cover 31 is provided with a first convex strip 311 and a second convex strip 312 located inside the first convex strip 311, and a limiting groove 313 is formed between the first convex strip 311 and the second convex strip 312. The top of the winding cover 4 is provided with a third convex strip 41 that matches the shape of the limiting groove 313. The third convex strip 41 is inserted into the limiting groove 313, and the power cord 5 is wound around the outside of the first convex strip 311. In this embodiment, the limiting groove 313 and the third convex strip 41 composed of the first convex strip 311 and the second convex strip 312 are both annular structures with a notch, one end of the power cord 5 is fixed inside the second convex strip 312, the middle part of the power cord 5 passes through the notch and is wound around the outside of the first convex strip 311, and the other end extends out of the annular winding space.

[0054] Preferably, see Figure 8 and Fig. 9The annular winding space 9 has a wire passing opening 91 on one side facing the outside of the housing 1, and an elastic limiting member 314 is provided on the upper side of the wire passing opening 91. The elastic limiting member 314 is used to limit the power cord 5 from escaping from the annular winding space 9 from the wire passing opening 91. In this embodiment, a plurality of elastic limiting members 314 are provided, and the plurality of elastic limiting members 314 are evenly distributed on the upper side of the wire passing opening 91. When the power cord 5 is wound in the annular winding space 9, the elastic limiting member 314 presses the surface of the power cord 5 to prevent the power cord 5 from escaping from the annular winding space 9 from the wire passing opening 91, thereby limiting the power cord 5. In other embodiments, the elastic limiting member 314 may be provided on the lower side of the wire passing opening 91, or the elastic limiting member 314 may be provided on both the upper side and the lower side of the wire passing opening 91, which can also limit the power cord 5.

[0055] Preferably, see Figures 8 to 12 The water boiler also includes a first screw 6 . A first screw column 315 is provided in the middle of the bottom surface of the bottom cover 31 . The first screw 6 passes through the winding cover 4 and is screwed into the first screw column 315 to install the winding cover 4 on the bottom of the bottom cover 31 .

[0056] The water boiling assembly 3 further includes a connector 32, a mounting bracket 33 and a circuit board 34. The connector 32 is mounted on the top of the mounting bracket 33 and partially extends out of the housing 1. The circuit board 34 is mounted on the inner side of the bottom of the mounting bracket 33. In this embodiment, a plurality of claws 331 extending downward are evenly distributed on the edge of the main body of the mounting bracket 33. The connector 32 is mounted on the main body of the mounting bracket 33 and partially extends out of the housing 1. The circuit board 34 is mounted in a space surrounded by the plurality of claws 331.

[0057] Among them, a locking hole 3311 is provided at the lower end of the claw portion 331, and a plurality of locking portions 316 are provided at the edge of the bottom cover 31. The locking portions 316 correspond to the locking holes 3311 of the claw portion 331 one by one, and the locking portions 316 are locked in the locking holes 3311 to install the bottom cover 31 on the mounting bracket 33; the middle part of the main body of the mounting bracket 33 extends downward to form an extension portion 332, and a through hole 341 is provided in the middle part of the circuit board 34, and a plurality of second spring buckles 333 are provided on the outer side of the extension portion 332, and the lower end of the extension portion 332 extends into the through hole 341, and the second spring buckles 333 are locked in the through hole 341 to firmly install the circuit board 34 on the inner side of the mounting bracket 33.

[0058] The water boiler also includes a second screw 7. The inner top surface of the housing 1 is provided with a second screw column 13. The second screw 7 passes through the bottom cover 31 and the claw 331 of the mounting bracket 33 in sequence and is screwed into the second screw column 13 to install the water boiling component in the housing 1. The water boiler also includes a third screw 8. The third screw 8 passes through the main body of the mounting bracket 33 and is screwed into the bottom of the connector 32 to achieve the fixation of the mounting bracket 33 and the connector 32. When assembling the water boiling component, the connector 32 is first installed on the main body of the mounting bracket 33 and fixed with the third screw 8, then the circuit board 34 is placed in the space surrounded by the claw 331 of the mounting bracket 33 and the second spring buckle 333 of the mounting bracket 33 is inserted into the clamping hole 3311 of the circuit board 34, and finally the multiple clamping parts 316 of the bottom cover 31 are aligned and inserted into the clamping hole 3311 of the claw 331 to complete the installation of the bottom cover 31 and the assembly of the water boiling component 3 is completed.

[0059] When assembling the water boiler, first insert the bracket protrusion 232 of the assembled rotating and pressing assembly into the mounting hole 11 and abut against the mounting hole 11, at this time, one end of the rotating bracket 24 and one end of the button bracket 25 both extend out of the mounting hole 11, and then the decorative cover 29 is sleeved on the outer side of the end of the rotating bracket 24 away from the hollow encoder 22; then, first put the assembled water boiling assembly 3 into the housing 1, and the connector 32 partially extends out of the housing 1, and then use the second screw 7 to pass through the bottom cover 31 and the claw 331 of the mounting bracket 33 in sequence and then screw it into the second screw column 13, so that the water boiling assembly 3 is installed in the housing 1; finally, align the third protrusion 41 of the winding cover 4 and insert it into the limiting groove 313 of the bottom cover 3, and then use the first screw 6 to pass through the winding cover 4 and screw it into the first screw column 315 to complete the installation of the winding cover 4.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tamper-proof knob structure, characterized in that: It comprises a housing (1) and a knob (2), wherein the knob (2) comprises a control panel (21), a control panel bracket (23) and a rotating and pressing assembly; The control panel bracket (23) comprises a bracket body (231) and a bracket protrusion (232) protruding from one side of the bracket body (231); the housing (1) is provided with a mounting hole (11) through which the bracket body (231) is installed inside the housing (1); the bracket protrusion (232) is inserted into the mounting hole (11) and abuts against the hole wall of the mounting hole (11); the control panel (21) is arranged in the bracket body (231); the bracket protrusion (232) is provided with a through hole (233); the through hole (233) communicates with the mounting hole (11) and the inside of the bracket body (231); one end of the rotary pressing component is connected to the control panel (21); the other end passes through the through hole (233) and extends to the outside of the housing (1); the rotary pressing component is clamped with the bracket protrusion (232) through a snap-fit ​​structure.

2. The anti-tampering knob structure according to claim 1, characterized in that: The buckle structure comprises a first spring buckle and an annular groove. One of the bracket protrusion (232) and the rotating pressing assembly is provided with the first spring buckle and the other is provided with the annular groove. The first spring buckle is snapped into the annular groove.

3. The anti-tampering knob structure according to claim 1, characterized in that: An annular stop bar (234) is provided on the inner side of the bracket protrusion (232), the annular stop bar (234) encloses the through hole (233), and the buckle structure is located between the annular stop bar (234) and the bracket protrusion (232).

4. The anti-tampering knob structure according to claim 2, characterized in that: When the first spring buckle is arranged on the bracket protrusion (232), the inner side of the first spring buckle has a first inclined surface and / or the lower side of the annular groove has a second inclined surface, and the first spring buckle slides into the annular groove under the guidance of the first inclined surface and / or the second inclined surface so that the first spring buckle is engaged in the annular groove; When the first spring buckle is arranged on the rotating pressing assembly, the outer side of the first spring buckle has a first inclined surface and / or the top of the annular groove has a second inclined surface. The first spring buckle slides into the annular groove through the guidance of the first inclined surface and / or the guidance of the second inclined surface so that the first spring buckle is clamped in the annular groove.

5. The anti-tampering knob structure according to claim 2, characterized in that: An annular water retaining strip (235) is provided at one end of the through hole (233) close to the control plate (21).

6. The anti-tampering knob structure according to claim 1, characterized in that: The rotary pressing assembly comprises a hollow encoder (22), a rotary bracket (24) and a button bracket (25); The hollow encoder (22) is arranged on the control board (21); One end of the rotating bracket (24) is sleeved on the outer side of the rotating outer ring (221) of the hollow encoder (22), the middle part of the rotating bracket (24) is snap-fitted with the bracket protrusion (232) through the snap-fit ​​structure, the other end of the rotating bracket (24) passes through the through hole (233) and extends to the outside of the housing (1), and the outer diameter of one end of the rotating bracket (24) away from the hollow encoder (22) is smaller than the aperture of the mounting hole (11); One end of the key bracket (25) is clamped on the inner side of the fixed inner ring (222) of the hollow encoder (22), and the other end of the key bracket (25) extends through the through hole (233) to the outside of the housing (1), and the key bracket (25) is located on the inner side of the rotating bracket (24).

7. The anti-tampering knob structure according to any one of claims 1 to 6, characterized in that: The inner wall of the housing (1) is provided with a card slot (12), and the bracket body (231) is provided with a card hook (2311) corresponding to the card slot (12), and the card hook (2311) is engaged in the card slot (12).

8. A water boiler, characterized in that: The invention comprises a water boiling component (3) for heating a teapot and an anti-disassembly knob structure according to any one of claims 1 to 7, wherein the water boiling component (3) comprises a bottom cover (31) arranged at the bottom of the casing (1), a wire winding cover (4) is installed at the bottom of the bottom cover (31), and an annular wire winding space (9) for winding a power cord (5) is formed between the bottom cover (31) and the wire winding cover (4).

9. The water boiler according to claim 8, characterized in that The bottom surface of the bottom cover (31) is provided with a first convex strip (311) and a second convex strip (312) located inside the first convex strip (311); a limiting groove (313) is formed between the first convex strip (311) and the second convex strip (312); the top of the winding cover (4) is provided with a third convex strip (41) whose shape matches the limiting groove (313); the third convex strip (41) is inserted into the limiting groove (313); and the power cord (5) is wound around the outside of the first convex strip (311).

10. The water boiler according to claim 8 or 9, characterized in that: The annular winding space (9) has a wire passage opening (91) on one side facing the outside of the housing (1), and an elastic limiting member (314) is provided on the upper side and / or the lower side of the wire passage opening (91), and the elastic limiting member (314) is used to limit the power cord (5) from escaping from the annular winding space (9) through the wire passage opening (91).

Images