A silent switch for coat hooks

Abstract

A silent switch applied to a coat hook relates to the technical field of automobile accessories, and comprises an outer shell, an inner claw, a cam structure and a spring. A hook for hanging with an external lock tongue is formed on the inner claw, and the hook can perform an opening / closing reciprocating motion relative to the inner claw, and the inner claw can slide relatively reciprocatingly in the outer shell; a spring positioning boss is formed on the inner claw, and a spring limiting column is formed on the outer shell, one end of the spring is sleeved on the spring positioning boss, and the other end of the spring is sleeved on the spring limiting column; a cam mounting hole is formed on the inner claw, and the cam structure is mounted in the cam mounting hole, and the cam structure can perform free rotation relative to the inner claw, a pushing wedge block is provided at the bottom of the outer shell, and a pushing inclined surface is formed on the pushing wedge block, and a locking convex block is provided on the side wall of the outer shell. The silent switch of the present invention has a small overall volume, occupies a small space, works in accordance with different working states of the coat hook, and improves flexibility.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, and in particular to a silent switch applied to a coat hook. Background Art

[0002] With the continuous development of the automobile industry, the design of automobile interiors has become more and more humanized, and many cars are equipped with coat hooks. Existing coat hooks are basically divided into two categories: one is an integrated coat hook, which constitutes a component with the supporting structure on the car body and is integrally injection molded; the other is a split coat hook, which is an independent component and is installed at a preset position on the car body by screwing or welding. The above two coat hook structures, whether used or not, are exposed in the car, and occupy a certain space in the relatively narrow space in the car, which not only seriously affects the beauty of the interior, but also causes secondary injuries to passengers when the vehicle collides, and there are certain safety hazards. In addition, the above two coat hooks are generally in a fixed state when in use. In order to reduce the space occupied by the coat hook, a movable coat hook is proposed in the prior art. When not in use, the coat hook is hidden. A lock tongue is provided on the coat hook for hiding the coat hook. Therefore, there is room for improvement. The present invention proposes a silent switch for the coat hook. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a silent switch for coat hooks, and the specific scheme is as follows:

[0004] A silent switch for a coat hook comprises a housing, an inner claw, a cam structure and a spring, wherein a hook is formed on the inner claw for hooking with an external lock tongue, the hook can perform an opening / closing reciprocating motion relative to the inner claw, and the inner claw can slide reciprocatingly in the housing;

[0005] A spring positioning boss is formed on the inner claw, a spring limiting column is formed on the outer shell and is coaxially arranged with the spring positioning boss, the expansion and contraction direction of the spring is the same as the sliding direction of the inner claw, one end of the spring is sleeved on the spring positioning boss, and the other end of the spring is sleeved on the spring limiting column;

[0006] A cam mounting hole is formed on the inner claw, and the cam structure is installed in the cam mounting hole. The cam structure can freely rotate relative to the inner claw. A pushing wedge block is provided at the bottom of the outer shell, and the pushing wedge block is formed with a pushing inclined surface. The pushing inclined surface is used to provide rotational power to the cam structure. A locking protrusion is provided on the side wall of the outer shell, and the locking protrusion is used to clamp with the cam structure or provide rotational power to the cam structure.

[0007] Furthermore, the cam structure includes a coaxially arranged limit block and a guide slider, and the limit block is arranged close to the inner claw;

[0008] The limit block is X-shaped as a whole, and has V-shaped grooves formed at both ends along the length direction, and the V-shaped grooves are used to cooperate with the locking protrusions;

[0009] The guide sliding block is provided with guide arc strips which are arranged in a mirror-symmetrical manner, and the two guide arc strips are respectively aligned with the two end portions which are arranged diagonally on the limit block.

[0010] Furthermore, a movable groove is formed on one side of the outer shell located on the pushing wedge block, and the movable groove provides space for the end of the limiting block.

[0011] Furthermore, a front guide structure is provided between the inner claw and the outer shell, and the front guide structure includes a front guide column provided on the inner claw and a front guide straight groove opened on the outer shell, and the front guide column can slide back and forth relative to the front guide straight groove to assist the inner claw to open.

[0012] Furthermore, a front side mounting inclined surface is formed on the housing at the top end of the front guide straight groove.

[0013] Furthermore, a rear guide structure is provided between the inner claw and the outer shell, and the rear guide structure includes a rear guide column provided on the hook and a rear guide arc groove opened on the outer shell, and the rear guide column can slide back and forth relative to the rear guide arc groove.

[0014] Furthermore, a rear side mounting inclined surface is formed on the housing at the top end of the rear guide arc groove.

[0015] Furthermore, a limited height platform is formed on the inner claw, and a limited height boss is formed on the upper end of the locking protrusion, and the limited height platform can be arranged to abut against the limited height boss.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the lock is in the closed position, the lock tongue is in the closed position, and ... When the inner claw is again pressed down by the lock tongue, since the cam structure is still in an inclined state, the surface of the limit card block continues to rotate counterclockwise under the push of the pushing inclined surface, and the entire cam structure is under the locking protrusion. After the downward pressure disappears, the inner claw rises relative to the outer shell under the push of the spring, and the cam structure also rises accordingly. At this time, the sharp corner of the locking protrusion pushes the limit card block to make the cam structure continue to rotate counterclockwise. During the upward movement of the inner claw, when the cam structure is separated from the contact of the sharp corner, under the action of the side plane of the locking protrusion, the cam structure returns to its initial vertical state to complete the unlocking. At the same time, the hook is relatively opened to facilitate the disengagement of the lock tongue, so that the switch can be returned to the open state, which is convenient for people to use the coat hook;

[0018] (2) In summary, the silent switch of the present invention has a small overall volume, which reduces the occupied space. At the same time, the silent switch works with the coat hook. When the coat hook is not in use, the coat hook can be hidden. When the coat hook needs to be used, the silent switch is turned on to release the lock tongue, so that the coat hook can be used normally.

[0019] (3) By providing a front guide structure and a rear guide structure, when the inner claw slides back and forth relative to the outer shell, the front guide column moves in the front guide straight groove at the same time. In addition, when the hook is opened or closed, the rear guide column moves in the rear guide arc groove, thereby improving the stability of the overall inner claw during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an overall schematic diagram of an embodiment of the present invention;

[0021] Figure 2 It is an explosion schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the explosion between the outer shell and the inner claw;

[0023] Figure 4 a bottom view showing the location of the spring locating boss for the inner claw;

[0024] Figure 5 A top view showing the location of the spring stop post for the housing;

[0025] Figure 6 A schematic diagram showing the position of the locking protrusion and the pushing wedge block for the housing;

[0026] Figure 7 It is the overall schematic diagram of the cam structure;

[0027] Figure 8 It is a cross-sectional view showing the cooperation between the cam structure and the pushing wedge block of the present invention (when the inner claw moves downward for the first time);

[0028] Fig. 9 This is a cross-sectional view showing the cooperation between the cam structure and the pushing wedge block of the present invention (when the inner claw moves downward for the second time).

[0029] : 1. outer shell; 2. inner claw; 21. hook; 22. spring positioning boss; 23. height-limiting platform; 24. cam mounting hole; 3. movable groove; 4. spring; 5. front guide structure; 51. front guide column; 52. front guide straight groove; 6. rear guide structure; 61. rear guide column; 62. rear guide arc groove; 7. cam structure; 71. limit block; 711. snap-fit ​​V-shaped groove; 72. guide slider; 721. guide arc strip; 8. push wedge block; 81. push inclined plane; 9. locking protrusion; 10. front side mounting inclined plane; 11. rear side mounting inclined plane; 12. height-limiting boss; 13. spring limit column; 14. observation hole. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0031] Combination Figure 1 and Figure 2 A silent switch applied to a coat hook comprises a shell 1, an inner claw 2, a cam structure 7 and a spring 4. Through the above-mentioned multiple structures, the silent switch can be used in conjunction with the coat hook. When the silent switch is turned off, the coat hook is in a fixed state and hidden on the vehicle body. When the silent switch is turned on, the coat hook is in an active state, which is convenient for people to hang items.

[0032] The inner claw 2 is used to be hooked with the lock tongue on the clothes hook, and one end of the inner claw 2 is integrally formed with two symmetrically arranged hooks 21. Since the material making the inner claw 2 has the ability to deform, the hook 21 can perform reciprocating movement of opening / closing relative to the inner claw 2. When hooked with the lock tongue, the two hooks 21 are closed and work together to hook the lock tongue. After the two hooks 21 are opened, the lock tongue is released, which facilitates the movement of the clothes hook.

[0033] Combination Figures 4 to 5 The inner claw 2 can slide back and forth in the outer shell 1. When the inner claw 2 moves downward relative to the outer shell 1, the two hooks 21 are squeezed by the outer shell 1 and relatively closed. When the inner claw 2 rises relative to the outer shell 1, the two hooks 21 lose the support of the outer shell 1 and can be relatively opened under the action of inertia. In order to improve the stability of the inner claw 2 during movement, a front guide structure 5 and a rear guide structure 6 are provided between the inner claw 2 and the outer shell 1. The front guide structure 5 and the rear guide structure 6 are respectively located at the front side and the rear side of the silent switch. When the inner claw 2 moves, the two play a role of limiting guide.

[0034] The front guide structure 5 includes a front guide column 51 integrally provided on the inner claw 2 and a front guide straight groove 52 provided on the outer shell 1, and the front guide column 51 can slide back and forth relative to the front guide straight groove 52. A rear guide structure 6 is provided between the inner claw 2 and the outer shell 1, and the rear guide structure 6 includes a rear guide column 61 provided on the hook 21 and a rear guide arc groove 62 provided on the outer shell 1. Since there are two hooks 21, there are two rear guide columns 61 correspondingly, and the hook 21 will deform when closing or opening. The rear guide arc groove 62 is correspondingly provided in a curved arc shape according to the movement trajectory of the hook 21 in the vertical and horizontal directions. The rear guide column 61 can slide back and forth relative to the rear guide arc groove 62 to assist the inner claw 2 in opening.

[0035] A front side mounting bevel 10 is formed at the top of the front guide straight groove 52 on the housing 1, and a rear side mounting bevel 11 is formed at the top of the rear guide arc groove 62 on the housing 1. When the inner claw 2 is assembled in the housing 1, the front guide column 51 enters the front guide straight groove 52 under the guidance of the front side mounting bevel 10, and the rear guide column 61 enters the rear guide arc groove 62 under the guidance of the rear side mounting bevel 11. Optimally, an observation hole 14 is opened on the side wall of the housing 1 for personnel to observe the internal situation. The observation hole 14 is set on the same side as the front guide straight groove 52 and close to the bottom of the housing 1.

[0036] Combination Figure 2 , Figure 4 as well as Figure 5After the inner claw 2 moves downward, it is driven by the spring 4 to reset. Specifically, the expansion and contraction direction of the spring 4 is the same as the sliding direction of the inner claw 2. When the inner claw 2 moves downward, the spring 4 is compressed to store elastic potential energy, and the elastic force generated can push the inner claw 2 to move upward. In this embodiment, a spring positioning boss 22 is formed on the inner claw 2, and a spring limiting column 13 coaxially arranged with the spring positioning boss 22 is formed on the outer shell 1. The outer diameters of the spring positioning boss 22 and the spring limiting column 13 are both adapted to the inner diameter of the spring 4. One end of the spring 4 is sleeved on the spring positioning boss 22, and the other end of the spring 4 is sleeved on the spring limiting column 13. Under the joint action of the spring positioning boss 22 and the spring limiting column 13, the compression direction of the spring 4 is prevented from being offset, thereby ensuring that the spring 4 stably provides the required thrust for resetting the inner claw 2.

[0037] Combination Figure 3 and Figure 6 , optimized, a limited height platform 23 is formed on the inner claw 2, and the limited height platform 23 is arranged on the same side as the front guide column 51, and its height is higher than the height of the front guide column 51. A limited height boss 12 is formed on the upper end of the locking protrusion 9 to cooperate with the limited height platform 23, and the limited height platform 23 can be arranged to abut against the limited height boss 12. When the inner claw 2 moves down a certain distance relative to the outer shell 1, the limited height platform 23 abuts against the limited height boss 12 to prevent the inner claw 2 from moving down further, thereby positioning the inner claw 2.

[0038] The above-mentioned inner claw 2 can only simply move up and down in the outer shell 1 under the action of the front guide structure 5, the rear guide structure 6 and the spring 4. In order to cooperate with the inner claw 2 and the lock tongue to work, a cam mounting hole 24 is formed on the inner claw 2, and the cam structure 7 is installed in the cam mounting hole 24. The cam structure 7 can make free rotation movement relative to the inner claw 2, that is, it can make clockwise and counterclockwise rotation movement. A pushing wedge block 8 is provided at the bottom of the outer shell 1. The pushing wedge block 8 is formed with a pushing inclined surface 81. The pushing inclined surface 81 is used to provide rotational power to the cam structure 7. When the cam structure 7 moves to contact with the pushing inclined surface 81, the cam structure 7 will gradually rotate under the action of the pushing inclined surface 81 as it gradually moves downward. A square locking protrusion 9 is provided on the side wall of the housing 1, and a corner of the lower end of the locking protrusion 9 is set as a sharp corner. The locking protrusion 9 is used to clamp with the cam structure 7 or provide rotational power to the cam structure 7. The cam structure 7 cooperates with the sharp corner to achieve clamping when it gradually moves upward, or the cam structure 7 gradually rotates under the top pressure of the sharp corner when it gradually moves upward.

[0039] When the inner claw 2 slides back and forth, the cam structure 7 moves with the inner claw 2, and the cam structure 7 can clamp with the locking protrusion 9 to put the switch in a locked state, hooking the lock tongue, or the cam structure 7 rotates to change its position relative to the inner claw 2 and no longer clamps with the locking protrusion 9, so that the switch is in an open state and the lock tongue is released. See the following for details.

[0040] Combination Figures 7 to 9 The cam structure 7 includes a coaxially arranged limit block 71 and a guide slider 72. The limit block 71 is arranged near the inner claw 2. The limit block 71 is X-shaped as a whole, and a clamping V-shaped groove 711 is formed at both ends along the length direction. The clamping V-shaped groove 711 is used to cooperate with the locking protrusion 9, and the outer edges of the limit block 71 are connected by an arc transition. The guide slider 72 is similar to an N-shape as a whole, and its outer edges are connected by an arc transition. The central structure is an annular structure, and the outer wall of the annular structure is integrally formed with a guide arc strip 721 arranged in a mirror-symmetrical manner. The two guide arc strips 721 are respectively aligned with the two ends of the limit block 71 that are diagonally arranged.

[0041] The housing 1 is provided with a movable groove 3 (such as Figure 6 ), the movable groove 3 provides space for the end of the limiting block 71.

[0042] In this embodiment, for the convenience of description, the initial state of the silent switch of the present invention is set to the open state, which is separated from the lock tongue, and the coat hook is in an active state and can be used. At this time, the length direction of the cam structure 7 is vertically arranged. After the coat hook is used, the lock tongue extends between the hooks 21 of the inner claw 2. The inner claw 2 is subjected to the downward pressing force transmitted by the lock tongue and moves downward relative to the outer shell 1. At the same time, the spring 4 is compressed, and the hook 21 gradually closes until the cam structure 7 contacts the pushing wedge block 8. Specifically, one end of the limit block 71 is in the active groove 3, and the guide slide The guide arc 721 of block 72 contacts with the pushing wedge block 8, and the surface of the guide arc 721 rotates counterclockwise under the push of the pushing inclined surface 81. At this time, the cam structure 7 is inclined. After the downward pressure disappears, the inner claw 2 rises relative to the outer shell 1 under the push of the spring 4, and the cam structure 7 also rises accordingly. At this time, the engaging V-shaped groove 711 at one end of the limiting block 71 is engaged with the sharp corner of the locking protrusion 9, the cam structure 7 is fixed, and the inner claw 2 also stops moving, so that the silent switch is in a locked state, and the hook 21 remains closed to hook the lock tongue, thereby fixing the clothes hook.

[0043] When the inner claw 2 is again subjected to the downward pressure of the lock tongue, since the cam structure 7 is still in an inclined state, the surface of the limit card block 71 continues to rotate counterclockwise under the push of the pushing inclined surface 81, and the entire cam structure 7 is under the locking protrusion 9. After the downward pressure disappears, the inner claw 2 rises relative to the outer shell 1 under the push of the spring 4, and the cam structure 7 also rises accordingly. At this time, the sharp corner of the locking protrusion 9 pushes the limit card block 71 to make the cam structure 7 continue to rotate counterclockwise. During the upward movement of the inner claw 2, when the cam structure 7 is separated from the contact of the sharp corner, under the action of the side plane of the locking protrusion 9, the cam structure 7 returns to its initial vertical state, completing the unlocking. At the same time, the hook 21 is relatively opened, which is convenient for the lock tongue to disengage, so that the switch can be returned to the open state, making it convenient for people to use the coat hook.

[0044] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A silent switch for a coat hook, characterized in that: It comprises an outer shell (1), an inner claw (2), a cam structure (7) and a spring (4); the inner claw (2) is formed with a hook (21) for hooking with an external locking tongue; the hook (21) can perform an opening / closing reciprocating motion relative to the inner claw (2); and the inner claw (2) can slide reciprocatingly in the outer shell (1); A spring positioning boss (22) is formed on the inner claw (2), and a spring limiting column (13) is formed on the outer shell (1) and is coaxially arranged with the spring positioning boss (22). The extension and contraction direction of the spring (4) is the same as the sliding direction of the inner claw (2). One end of the spring (4) is sleeved on the spring positioning boss (22), and the other end of the spring (4) is sleeved on the spring limiting column (13). A cam mounting hole (24) is formed on the inner claw (2), the cam structure (7) is mounted in the cam mounting hole (24), the cam structure (7) can freely rotate relative to the inner claw (2), a pushing wedge block (8) is provided at the bottom of the outer shell (1), the pushing wedge block (8) is formed with a pushing inclined surface (81), the pushing inclined surface (81) is used to provide rotational power to the cam structure (7), and a locking protrusion (9) is provided on the side wall of the outer shell (1), the locking protrusion (9) is used to clamp with the cam structure (7) or provide rotational power to the cam structure (7); The cam structure (7) comprises a coaxially arranged limit block (71) and a guide slide block (72), wherein the limit block (71) is arranged close to the inner claw (2); The limit block (71) is X-shaped as a whole, and is respectively provided with a V-shaped clamping groove (711) at both ends along the length direction, and the V-shaped clamping groove (711) is used to cooperate with the locking protrusion (9); The guide slider (72) is formed with guide arc strips (721) arranged in a centrally symmetrical manner, and the two guide arc strips (721) are respectively aligned with two ends of the limit block (71) which are arranged diagonally opposite to each other; A limited height platform (23) is formed on the inner claw (2), a limited height boss (12) is formed on the upper end of the locking protrusion (9), and the limited height platform (23) is arranged in abutment with the limited height boss (12).

2. The silent switch for coat hook according to claim 1, characterized in that: The housing (1) is formed with a movable groove (3) on one side of the pushing wedge block (8), and the movable groove (3) provides space for the end of the limiting clamping block (71).

3. The silent switch for coat hook according to claim 1, characterized in that: A front guide structure (5) is provided between the inner claw (2) and the outer shell (1), the front guide structure (5) comprising a front guide column (51) provided on the inner claw (2) and a front guide straight groove (52) provided on the outer shell (1), the front guide column (51) being capable of reciprocating sliding relative to the front guide straight groove (52).

4. The silent switch for coat hook according to claim 3, characterized in that: A front side mounting inclined surface (10) is formed on the housing (1) at the top end of the front straight guide groove (52).

5. The silent switch for coat hook according to claim 3, characterized in that: A rear guide structure (6) is provided between the inner claw (2) and the outer shell (1), the rear guide structure (6) comprising a rear guide column (61) provided on the hook (21) and a rear guide arc groove (62) provided on the outer shell (1), the rear guide column (61) being capable of reciprocatingly sliding relative to the rear guide arc groove (62) to assist the inner claw (2) in opening.

6. The silent switch for coat hook according to claim 5, characterized in that A rear side mounting inclined surface (11) is formed on the housing (1) at the top end of the rear guide arc groove (62).

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