Mute angle regulator

Abstract

The utility model provides a mute angle regulator, including support member and gear member, the gear member is installed on the support member and rotates in the support member, the support member is provided with a wedge-shaped space on the gear member side, the wedge-shaped space is internally provided with a gear block, and the gear block is connected with the gear member through the wedge-shaped space. A tooth part on the gear block is matched with the gear component, a linkage swing arm is arranged on the gear component, the linkage swing arm is in friction connection with the gear component and moves in the rotation direction along with rotation of the gear component, and the linkage swing arm is connected with the gear block and drives the gear block to be close to or away from the gear component. According to the utility model, the linkage swing arm can swing along with the rotation of the gear component, so that the linkage swing arm can drive the gear block to move when the angle is adjusted, and no noise is generated between the gear block and the gear component when the angle is adjusted.

Description

Technical Field

[0001] The utility model relates to the field of angle adjustment, in particular to a silent angle adjuster. Background Art

[0002] The existing angle adjustment devices, such as an angle adjustment device disclosed in the utility model patent with the publication number of CN205578494U, include a first support structure, a second support structure, and a gear member disposed between the two. The gear member can rotate within the first support structure and the second support structure. A wedge-shaped space is formed on one side of the first support structure and the second support structure. A gear block is disposed within the wedge-shaped space. The gear on the gear block cooperates with the gear member. A first fixed shaft penetrating the gear block is disposed on the gear block. Two ends of the first fixed shaft respectively extend into a first long strip-shaped blind hole and a second long strip-shaped blind hole. An elastic member for pushing the gear block towards the direction where the gear member is located is further disposed within the wedge-shaped space. Since two ends of the first fixed shaft are respectively located in the first long strip-shaped blind hole and the second long strip-shaped blind hole, this kind of angle adjustment device prevents foreign matters from entering the first fixed shaft, thereby avoiding unstable and unsmooth operation of the angle adjustment device. However, this device will generate noise during operation.

[0003] Therefore, the existing technology still needs to be improved. Summary of the Utility Model

[0004] In view of the deficiencies of the above-mentioned existing technology, the purpose of the present utility model is to provide a silent angle adjuster.

[0005] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0006] The present utility model provides a silent angle adjuster, including a support member and a gear member. The gear member is installed on the support member and rotates within the support member. A wedge-shaped space is disposed on one side of the gear member on the support member. A gear block is disposed within the wedge-shaped space. The tooth portion on the gear block cooperates with the gear member. A linkage swing arm is disposed on the gear member. The linkage swing arm is frictionally connected to the gear member and moves along the rotation direction as the gear member rotates. The linkage swing arm is connected to the gear block and drives the gear block to approach or move away from the gear member.

[0007] In a preferred embodiment, the silent angle adjuster further includes a positioning member for keeping the gear block in a disengaged state. The positioning member is installed on the support member.

[0008] In a preferred embodiment, for the silent angle adjuster, the positioning member is an elastic buckle. When the gear block moves to the positioning position, the positioning member restricts the movement of the gear block, and the gear block remains in the disengaged state.

[0009] In a preferred embodiment, for the silent angle adjuster, a limit stop is provided at each end of the gear section of the gear member.

[0010] In a preferred embodiment, for the silent angle adjuster, a connecting post is provided on the gear block, and the linkage swing arm is connected to the connecting post.

[0011] In a preferred embodiment, for the silent angle adjuster, the positioning member is in snap-fit with the connecting post.

[0012] In a preferred embodiment, for the silent angle adjuster, support strengthening members are provided on both the upper and lower sides of the support member. The support strengthening members are provided with limit strip holes. The connecting post is located in the limit strip holes and is movable in the limit strip holes. The limit strip holes limit the movement range of the connecting post. One end of the connecting post passes through the limit strip holes and cooperates with the linkage swing arm and the positioning member. A fork is provided at the swinging end of the linkage swing arm. The connecting post is inserted into the fork. The limit strip holes have positioning convex parts. A clamping convex part is also provided at the swinging end of the linkage swing arm. The clamping convex part cooperates with the positioning convex part. The positioning convex part is arranged on the movement path of the clamping convex part. On the movement path of the clamping convex part, the clamping convex part is snapped from one side of the positioning convex part to the other side of the positioning convex part, and the clamping convex part is stuck. The gear block enters the positioning position. A limit post is also provided on the gear block. The limit post is located in the limit strip holes and is movable in the limit strip holes.

[0013] In a preferred embodiment, for the silent angle adjuster, the linkage swing arm includes a pan head and an arm tail provided on one side of the pan head. The arm tail is connected to the gear block, and the pan head is in frictional connection with the gear member.

[0014] In a preferred embodiment, for the silent angle adjuster, a protective cover is installed on the support member. The protective cover covers the linkage swing arm inside. The protective cover has a sealing groove that limits the movement range of the linkage swing arm. A friction bearing is provided between the pan head and the protective cover. The frictional force between the gear member and the pan head is greater than the frictional force between the pan head and the friction bearing.

[0015] In a preferred embodiment, the silent angle adjuster further includes a fixed shaft which is installed at the centers of the gear member, the disc head, and the friction bearing. A spring is provided between the shaft head of the fixed shaft and the friction bearing, and the shaft head of the fixed shaft presses the spring against the friction bearing. A friction member is provided on the gear member, and the friction member is in frictional connection with the disc head.

[0016] Compared with the prior art, a silent angle adjuster provided by the present utility model includes a support member and a gear member. The gear member is installed on the support member and rotates within the support member. A wedge-shaped space is provided on the support member on one side of the gear member, and a gear block is provided within the wedge-shaped space. The teeth on the gear block cooperate with the gear member. A linkage swing arm is provided on the gear member. The linkage swing arm is in frictional connection with the gear member and moves along the rotation direction as the gear member rotates. The linkage swing arm is connected to the gear block and drives the gear block to approach or move away from the gear member. The present utility model can utilize the swing of the linkage swing arm as the gear member rotates, so that when the angle is adjusted, the linkage swing arm will drive the gear block to move, and no noise will be generated between the gear block and the gear member during the angle adjustment. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the silent angle adjuster provided by the present utility model.

[0018] Figure 2 It is an exploded structural schematic diagram of the silent angle adjuster provided by the present utility model Figure 1 。

[0019] Figure 3 It is an exploded structural schematic diagram of the silent angle adjuster provided by the present utility model Figure 2 。

[0020] Figure 4 It is a schematic structural diagram of the linkage swing arm of the silent angle adjuster provided by the present utility model.

[0021] Figure 5 It is a schematic structural diagram of the protective cover of the silent angle adjuster provided by the present utility model.

[0022] Explanation of the Reference Numerals in the Drawings:

[0023] Support member 101

[0024] Gear member 102

[0025] Wedge-shaped space 103

[0026] Gear block 104

[0027] Linkage swing arm 105

[0028] Positioning member 106

[0029] Limit stop 107

[0030] Connecting column 108

[0031] Support and reinforcement member 109

[0032] Limit strip hole 110

[0033] Fork opening 111

[0034] Positioning convex part 112

[0035] Clamping convex part 113

[0036] Pan head 114

[0037] Arm tail 115

[0038] Protective cover 117

[0039] Sealing groove 118

[0040] Friction bearing 119

[0041] Fixed shaft 120

[0042] Friction part 121

[0043] Friction convex ring 122

[0044] Spring 123

[0045] Limit post 125 Specific embodiments

[0046] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the following further describes the present utility model in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0047] It should be noted that when a component is referred to as being "mounted on", "fixed to" or "disposed on" another component, it can be directly on the other component or there may be an intermediate component at the same time. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0048] It should also be noted that the terms of orientation such as left, right, up, and down in the embodiments of the present utility model are only relative concepts to each other or are referenced based on the normal use state of the product, and should not be considered restrictive.

[0049] Such as Figures 1-5As shown, the utility model provides a silent angle adjuster, including a supporting member 101 and a gear member 102, wherein the gear member 102 is mounted on the supporting member 101 and rotates in the supporting member 101, a wedge-shaped space 103 is provided on the supporting member 101 at one side of the gear member 102, a gear block 104 is provided in the wedge-shaped space 103, and the teeth on the gear block 104 cooperate with the gear member 102, and a linkage swing arm 105 is provided on the gear member 102, wherein the linkage swing arm 105 is frictionally connected with the gear member 102 and moves along the rotation direction as the gear member 102 rotates, and the linkage swing arm 105 is connected with the gear block 104 and drives the gear block 104 to approach or move away from the gear member 102. The utility model can utilize the linkage swing arm 105 to swing along with the rotation of the gear member 102, so that when the angle is adjusted, the linkage swing arm 105 will drive the gear block 104 to move, and when the angle is adjusted, no noise will be generated between the gear block 104 and the gear member 102. The wedge-shaped space 103 has a narrow side and a wide side. In the wedge-shaped space 103, the gear block 104 moves toward the narrow side to approach the gear member 102 and mesh with it, and the gear block 104 moves toward the wide side to move away from the gear member 102. That is to say, the rotation of the gear member 102 will drive the gear block 104 to gradually approach or move away from the gear member 102, thereby avoiding the generation of noise.

[0050] Preferably, the silent angle adjuster provided by the utility model further comprises a positioning member 106 for keeping the gear block 104 in a disengaged state, and the positioning member 106 is mounted on the support member 101. The disengaged state means that the gear block 104 is away from the gear member 102, and the operation of the gear member 102 will not come into contact with the gear block 104. Preferably, in the silent angle adjuster provided by the utility model, the positioning member 106 is an elastic buckle, the gear block 104 moves to the positioning position, the positioning member 106 limits the movement of the gear block 104, and the gear block 104 remains in the disengaged state. The positioning member 106 is used to limit the movement of the gear member 102, and the elastic buckle is used in this embodiment, which is an automatic positioning method. Of course, in other embodiments, a manual method can also be adopted, such as setting a movable pin, and the movable pin can be manually operated to block the gear block 104 from the positioning position.

[0051] Preferably, in the silent angle adjuster provided by the utility model, a limit stopper 107 is provided at each end of the gear segment of the gear member 102. The two limit stops 107 are used to limit the maximum adjustable angle, and at the same time, they can cooperate with the gear block 104 to forcefully move the gear block 104 to the wide side or narrow side of the wedge-shaped space 103, and can push the gear block 104 into the locking position from one direction, or forcefully push the gear block 104 out of the locking position from another direction.

[0052] Preferably, for the silent angle adjuster provided by the present utility model, a connecting post 108 is provided on the gear block 104, and the linkage swing arm 105 is connected to the connecting post 108. Preferably, for the silent angle adjuster provided by the present utility model, the clamping member 106 is in snap-fit with the connecting post 108. Specifically, for the silent angle adjuster provided by the present utility model, a support reinforcement 109 is provided on each of the upper and lower sides of the support member 101, a limiting strip hole 110 is provided on the support reinforcement 109, the connecting post 108 is located in the limiting strip hole 110 and is movable in the limiting strip hole 110, the limiting strip hole 110 limits the movement range of the connecting post 108, one end of the connecting post 108 passes through the limiting strip hole 110 and cooperates with the linkage swing arm 105 and the clamping member 106, a fork 111 is provided at the swinging end of the linkage swing arm 105, the connecting post 108 is inserted into the fork 111, the limiting strip hole 110 has a clamping convex portion 112, a clamping convex portion 113 is further provided at the swinging end of the linkage swing arm 105, the clamping convex portion 113 cooperates with the clamping convex portion 112, the clamping convex portion 112 is provided on the movement path of the clamping convex portion 113, on the movement path of the clamping convex portion 113, the clamping convex portion 113 is snapped from one side of the clamping convex portion 112 to the other side of the clamping convex portion 112, the clamping convex portion 113 is stuck, the gear block 104 enters the clamping position, and a limiting post 125 is further provided on the gear block 104, the limiting post 125 is located in the limiting strip hole 110 and is movable in the limiting strip hole 110.

[0053] Preferably, for the silent angle adjuster provided by the present utility model, the linkage swing arm 105 includes a pan head 114 and an arm tail 115 provided on one side of the pan head 114, the arm tail 115 is connected to the gear block 104, and the pan head 114 is in frictional connection with the gear member 102. Further, for the silent angle adjuster provided by the present utility model, a protective cover 117 is installed on the support member 101, the protective cover 117 covers the linkage swing arm 105 therein, the protective cover 117 has a sealing groove 118 that limits the movement range of the linkage swing arm 105, a friction bearing 119 is provided between the pan head 114 and the protective cover 117, and the frictional force between the gear member 102 and the pan head 114 is greater than the frictional force between the pan head 114 and the friction bearing 119. Specifically, for the silent angle adjuster provided by the present utility model, it further includes a fixed shaft 120, such as Figure 1As shown, the fixed shaft 120 is installed at the centers of the gear member 102, the socket head 114, and the friction bearing 119. A spring 123 is provided between the shaft head of the fixed shaft 120 and the friction bearing 119. The shaft head of the fixed shaft 120 presses the spring 123 against the friction bearing 119. A friction member 121 is provided on the gear member 102. The friction member 121 is in frictional connection with the socket head 114 directly or indirectly. A plurality of friction convex rings 122 are provided on the friction member 121, and the socket head 114 is also provided with corresponding plurality of friction convex rings 122. When the two are assembled, the friction convex rings 122 of the friction member 121 are inserted between two adjacent friction convex rings 122 of the socket head 114 or on one side of a friction convex ring 122, which can increase the contact area and ensure the frictional force and sufficient service life. The frictional force between the friction member 121 and the socket head 114 is greater than the frictional force between the socket head 114 and the friction bearing 119. The positioning member 106 of this embodiment is fixed in the protective cover 117.

[0054] In summary, the utility model can utilize the linkage swing arm to swing with the rotation of the gear member. Thus, when the angle is adjusted, the linkage swing arm will drive the gear block to move. When the angle is adjusted, no noise will be generated between the gear block and the gear member. The wedge-shaped space has a narrow side and a wide side. In the wedge-shaped space, when the gear block moves towards the narrow side, it approaches the gear member and meshes with it. When the gear block moves towards the wide side, it moves away from the gear member. That is to say, the rotation of the gear member will drive the gear block to gradually approach or move away from the gear member, thereby avoiding the generation of noise.

[0055] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution of the utility model and its inventive concept, and all such changes or substitutions should fall within the protection scope of the claims appended to the utility model.

Claims

1. A silent angle adjuster, characterized in that: The invention comprises a support member (101) and a gear member (102), wherein the gear member (102) is mounted on the support member (101) and rotates in the support member (101), a wedge-shaped space (103) is provided on the support member (101) at one side of the gear member (102), a gear block (104) is provided in the wedge-shaped space (103), a tooth portion on the gear block (104) cooperates with the gear member (102), a linkage swing arm (105) is provided on the gear member (102), the linkage swing arm (105) is frictionally connected to the gear member (102), and moves along a rotation direction as the gear member (102) rotates, and the linkage swing arm (105) is connected to the gear block (104) and drives the gear block (104) to approach or move away from the gear member (102).

2. The silent angle adjuster according to claim 1, characterized in that: It also includes a locking component (106) for keeping the gear block (104) in a disengaged state, and the locking component (106) is mounted on the supporting component (101).

3. The silent angle adjuster according to claim 2, characterized in that: The locking component (106) is an elastic buckle, and when the gear block (104) moves to the locking position, the locking component (106) limits the movement of the gear block (104), and the gear block (104) remains in a disengaged state.

4. The silent angle adjuster according to claim 3, characterized in that: A limit stopper (107) is provided at each end of the gear segment of the gear component (102).

5. The silent angle adjuster according to claim 4, characterized in that: A connecting column (108) is provided on the gear block (104), and the linkage swing arm (105) is connected to the connecting column (108).

6. The silent angle adjuster according to claim 5, characterized in that: The locking member (106) is snap-fitted with the connecting column (108).

7. The silent angle adjuster according to claim 6, characterized in that: A support reinforcement member (109) is provided on each of the upper and lower sides of the support member (101); a limit strip hole (110) is provided on the support reinforcement member (109); the connection column (108) is located in the limit strip hole (110) and moves in the limit strip hole (110); the limit strip hole (110) limits the range of movement of the connection column (108); one end of the connection column (108) passes through the limit strip hole (110) and cooperates with the linkage swing arm (105) and the locking member (106); a fork (111) is provided at the swing end of the linkage swing arm (105); the connection column (108) is inserted into the fork (111); the limit strip hole (110) has a locking convex portion (112), a locking convex portion (113) is further provided at the swing end of the linkage swing arm (105), the locking convex portion (113) cooperates with the locking convex portion (112), the locking convex portion (112) is provided on the moving path of the locking convex portion (113), and on the moving path of the locking convex portion (113), the locking convex portion (113) is locked from one side of the locking convex portion (112) to the other side of the locking convex portion (112), the locking convex portion (113) is locked, and the gear block (104) enters the locking position, and a limiting column (125) is further provided on the gear block (104), and the limiting column (125) is located in the limiting bar hole (110) and moves in the limiting bar hole (110).

8. The silent angle adjuster according to any one of claims 1 to 7, characterized in that: The linkage swing arm (105) comprises a pan head (114) and an arm tail (115) arranged on one side of the pan head (114); the arm tail (115) is connected to the gear block (104); and the pan head (114) is frictionally connected to the gear member (102).

9. The silent angle adjuster according to claim 8, characterized in that: The support member (101) is provided with a protective cover (117), the protective cover (117) covers the linkage swing arm (105) therein, the protective cover (117) has a sealing groove (118) for limiting the range of movement of the linkage swing arm (105), a friction bearing (119) is provided between the pan head (114) and the protective cover (117), and the friction force between the gear member (102) and the pan head (114) is greater than the friction force between the pan head (114) and the friction bearing (119).

10. The silent angle adjuster according to claim 9, characterized in that: The invention also comprises a fixed shaft (120), wherein the fixed shaft (120) is installed at the center of the gear component (102), the disk head (114), and the friction bearing (119); a spring (123) is arranged between the shaft head of the fixed shaft (120) and the friction bearing (119); the shaft head of the fixed shaft (120) presses the spring (123) onto the friction bearing (119); a friction member (121) is arranged on the gear component (102); the friction member (121) is frictionally connected to the disk head (114); and a plurality of friction convex rings (122) are arranged on the friction member (121).

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