Damper

Abstract

The utility model discloses a damper, which belongs to the technical field of damping devices, and comprises a rotating part and a speed reducing part, the rotating part is provided with outer teeth and inner teeth, the outer teeth are arranged on the outer wall of the rotating part, the inner teeth are arranged on the inner wall of the rotating part, the speed reducing part is arranged in the rotating part, the speed reducing part is meshed with the inner teeth, and the inner teeth are arranged on the inner wall of the rotating part. The outer part is meshed with the outer teeth, when the outer part rotates, rotation of the rotating part is achieved, the inner teeth are meshed with the speed reducing part, the rotation speed of the rotating part is reduced through meshing, and therefore the speed reduction of the outer part is further controlled.

Description

Technical Field

[0001] The utility model belongs to the technical field of damping devices, in particular to a damper. Background Art

[0002] A damper is a device that provides resistance to movement and dissipates the energy of movement. When a damper is applied to products such as tape measures or retractable data cables, the damper can slow down the recovery speed of the stretched tape or the retractable data cable.

[0003] However, a patent entitled "A tape measure damper with adjustable winding damping force" with publication number CN114485310B discloses: the damping mechanism comprises a base, the base is fixedly connected to a tape measure housing, an arc-shaped guide groove is arranged inside the base, the arc-shaped guide groove is connected to groove one, a damping wheel is arranged inside the groove one, two ends of the damping wheel are symmetrically connected to two groups of shafts one, one group of shafts one is connected to a one-way shaft mechanism, the one-way shaft mechanism is connected to a supporting mechanism, the supporting mechanism is connected to a damping mechanism, the damping mechanism is connected to an adjusting mechanism, a bearing is arranged on the shaft one, the bearing is embedded in a support arranged on the base, and the arc-shaped guide groove is slidably connected to the tape measure; the damping mechanism comprises a turntable, the middle part of the turntable is connected to shaft two, one end of the shaft two is fixedly connected to a gear, two groups of pull rods are arranged on one side of the turntable, a sliding sleeve is arranged at one end of the pull rod, the sliding sleeve is slidably connected to the sliding rod, a spring is sleeved on the sliding rod, the spring is located in a rectangular sliding groove, and the rectangular sliding groove is located on the damping block. One side of the damping block is fixedly connected to the receiving sleeve; the adjusting mechanism includes a screw, one end of the screw is fixedly connected to the rectangular shaft, the rectangular shaft is slidably connected to the rotating wheel, the screw is screwed to the L-shaped rod, one end of the L-shaped rod is fixedly connected to the rack, and the rack meshes with the gear; the locking mechanism includes an arc block, one side of the arc block has an arc groove built-in, the arc groove is clamped to the rotating wheel, two groups of arc grooves are symmetrically built-in at both ends of the arc block, the arc block is fixedly connected to the brake rod, the arc block is located in the guide frame, the guide frame includes a frame body, the frame body is fixedly connected to the tape measure housing, the frame body has a built-in guide groove, the guide groove is slidably connected to the arc block, two groups of grooves 2 are symmetrically arranged on both sides of the guide groove, the groove 2 is fixedly connected to an elastic steel bar, the raised portion on the elastic steel bar is clamped to the arc groove, the screw is located in a rectangular hole arranged on the tape measure housing, two groups of bearings are arranged at both ends of the screw, the bearings are embedded in the inner wall of the rectangular hole, a rectangular guide hole is arranged in the middle of the rotating wheel, and the rectangular guide hole is slidably connected to the rectangular shaft.

[0004] The damping mechanism mentioned above has a complex structure. Designing it in a product will increase the volume of the product, resulting in a bulky product structure. Utility Model Content

[0005] In order to solve the problem that the existing damper has a relatively complex structure, the utility model provides a damper with a simple structure.

[0006] The technical solution of the utility model is:

[0007] The utility model discloses a damper, comprising a rotating member and a speed reducing member, wherein the rotating member is provided with external teeth and internal teeth, the external teeth are arranged on the outer wall of the rotating member, the internal teeth are arranged on the inner wall of the rotating member, the speed reducing member is arranged in the rotating member, and the speed reducing member is meshed with the internal teeth.

[0008] Furthermore, a convex shaft is provided in the rotating member, a groove is provided in the speed reducing member, and the groove is sleeved on the convex shaft.

[0009] Furthermore, the outer wall of the speed reducer is provided with protruding teeth.

[0010] Furthermore, a primary slot and a secondary slot are provided in the rotating member, the convex shaft is provided in the primary slot, the internal tooth is provided in the secondary slot, the reduction member is divided into an upper section and a lower section, the convex tooth is located between the upper section and the lower section, the lower section is located in the primary slot, and the convex tooth is located in the secondary slot.

[0011] Furthermore, it also includes a cover, the rotating member is provided with a three-level slot, the cover is sleeved on the upper section, and the cover and the upper section are located together in the three-level slot.

[0012] Furthermore, it also includes a rubber ring, which is arranged between the cover and the speed reducer.

[0013] Furthermore, the speed reducer is provided with a fixing hole and a fixing member, and the fixing member is inserted into the fixing hole.

[0014] The beneficial effects of the utility model are:

[0015] A damper with a simple structure is designed, which includes a rotating part and a deceleration part. The rotating part includes internal teeth and external teeth. The external part meshes with the external teeth. When the external part rotates, the rotating part rotates on its own, and the internal teeth mesh with the deceleration part. The meshing between the internal teeth slows down the rotation speed of the rotating part, thereby further controlling the deceleration of the external part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0017] Figure 2 The decomposition structure of the first embodiment of the present invention is shown in FIG. Figure 1 ;

[0018] Figure 3 The decomposition structure of the first embodiment of the present invention is shown in FIG. Figure 2 ;

[0019] Figure 4 This is a schematic cross-sectional structure diagram of Embodiment 1 of the present utility model;

[0020] Figure 5 This is a schematic diagram of the exploded structure of Example 2 of the utility model;

[0021] Figure 6 This is a schematic diagram of the exploded structure of Example 3 of the present utility model;

[0022] Figure 7 for Figure 6 A schematic cross-sectional structure diagram of ;

[0023] Figure numerals: 1. rotating part, 11. external teeth, 12. internal teeth, 13. convex shaft, 14. primary slot, 15. secondary slot, 16. tertiary slot, 2. reducer, 21. groove, 22. convex teeth, 23. upper section, 24. lower section, 25. fixing hole, 26. fixing part, 3. cover, 31. primary ring edge, 32. secondary ring edge, 4. rubber ring. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] It should be noted that when a component is referred to as being "installed on", "provided on", "covered on", "sleeved on", or "locked on" another component, it can be directly on the other component or indirectly on the other component.

[0026] It should be understood that, in the description of the present utility model, “several” means two or more than two, unless otherwise clearly and specifically defined.

[0027] In addition, the orientations or positional relationships indicated by terms such as "inside", "upper", "between", "both sides", "one side", "top", "bottom", and "side" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] It should be noted that the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of the features.

[0029] It should be noted that the "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. Among them, A and B can be singular or plural respectively.

[0030] Example 1

[0031] Please refer to Figure 1-Figure 4 The utility model provides a damper, including a rotating member 1 and a reduction member 2, the rotating member 1 is provided with external teeth 11 and internal teeth 12, the external teeth 11 are provided on the outer wall of the rotating member 1, the internal teeth 12 are provided on the inner wall of the rotating member 1, the reduction member 2 is provided in the rotating member 1, and the reduction member 2 is meshed with the internal teeth 12; the external part meshes with the external teeth 11, and when the external part rotates, the self-rotation of the rotating member 1 is realized, and the internal teeth 12 meshes with the reduction member 2, and the self-rotation speed of the rotating member 1 is slowed down by the meshing therebetween, thereby further controlling the deceleration of the external part.

[0032] Specifically, the rotating member 1 is provided with a primary slot 14, a secondary slot 15, a tertiary slot 16 and a cam 13, the cam 13 is arranged in the primary slot 14, and the inner tooth 12 is arranged in the secondary slot 15; preferably, the bottom of the cam 13 can be hollow, and when the damper is arranged on the side of the external part, the hollow structure at the bottom of the cam 13 can be used to be sleeved in a shaft column to realize the position setting of the damper.

[0033] The deceleration member 2 is provided with a groove 21, and the groove 21 is sleeved on the convex shaft 13; the outer wall of the deceleration member 2 is provided with a convex tooth 22, and the convex tooth 22 is meshed with the inner tooth 12. The deceleration member 2 is divided into an upper section 23 and a lower section 24, and the convex tooth 22 is located between the upper section 23 and the lower section 24. The lower section 24 is located in the primary groove 14, and the convex tooth 22 is located in the secondary groove 15. Figure 4 Part of the upper section 23 is located in the secondary slot 15 , and part of the upper section 23 is located in the tertiary slot 16 .

[0034] It is worth noting that the outer wall convex teeth 22 of the reducer are only one of the structures, and it can also be an outer convex ring structure, as long as it can achieve friction with the inner teeth 12 when the rotating member 1 rotates.

[0035] Furthermore, it also includes a cover 3, the cover 3 is sleeved with the upper section 23, and the cover 3 and part of the upper section 23 are located together in the third-level slot 16, referring to Figure 3Seen from the top, the cover 3 is in the shape of a ring, and the middle of the cover 3 is sleeved on the upper section 23 of the speed reducer 2. Seen from the bottom, the inside of the cover 3 is also designed in a graded manner, including a primary ring edge 31 and a secondary ring edge 32. The primary ring edge 31 is stuck in the tertiary groove 16, and the secondary ring edge 32 is located above the inner teeth 12 and the convex teeth 22.

[0036] Furthermore, it also includes a rubber ring 4, which is arranged between the cover 3 and the speed reducer 2.

[0037] Furthermore, the deceleration member 2 is provided with a fixing hole 25 and a fixing member 26, and the fixing member 26 is inserted into the fixing hole 25. By setting the fixing member 26, the deceleration member 2 can be controlled not to rotate on its own, so as to better engage or rub the rotating member 1 to decelerate when the rotating member 1 rotates.

[0038] Preferably, the speed reducer 2 is further provided with a connecting hole, which is located at the side of the fixing hole. The position of the damper can be fixed by aligning the connecting hole with the columnar structure.

[0039] Example 2

[0040] Please refer to Figure 5 The utility model provides a damper, including a rotating member 1 and a reduction member 2, the rotating member 1 is provided with external teeth 11 and internal teeth 12, the external teeth 11 are provided on the outer wall of the rotating member 1, the internal teeth 12 are provided on the inner wall of the rotating member 1, the reduction member 2 is provided in the rotating member 1, and the reduction member 2 is meshed with the internal teeth 12; the external part meshes with the external teeth 11, and when the external part rotates, the self-rotation of the rotating member 1 is realized, and the internal teeth 12 meshes with the reduction member 2, and the self-rotation speed of the rotating member 1 is slowed down by the meshing therebetween, thereby further controlling the deceleration of the external part.

[0041] The difference from Example 1 is that the reduction member 2 is T-shaped, including a head and a body, the diameter of the head is larger than the diameter of the body, and the convex teeth 22 are arranged on the body; there is only one slot in the rotating member 1, and it also includes a rubber ring 4, which is arranged between the rotating member 1 and the head of the reduction member 2, and the reduction member 2 is fixed in the rotating member 1 by using the rubber ring 4.

[0042] Example 3

[0043] Reference Figure 6 and Figure 7 The difference from Example 2 is that: the top of the slot of the rotating member 1 is provided with a thread, and the head of the speed reducer 2 is also provided with a corresponding thread. No rubber ring 4 is required. The speed reducer 2 and the rotating member 1 are threadedly matched to stabilize the speed reducer 2 inside the rotating member 1.

[0044] When the external part meshes with the transmission rotating part 1, the reduction member 2 meshes or rubs with the internal teeth 12 internally, so that the rotation speed of the rotating part 1 is slowed down, and the rotation speed of the external part is further controlled.

[0045] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A damper, characterized in that: The invention comprises a rotating member (1) and a speed reducing member (2), wherein the rotating member (1) is provided with external teeth (11) and internal teeth (12), wherein the external teeth (11) are provided on the outer wall of the rotating member (1), and the internal teeth (12) are provided on the inner wall of the rotating member (1), and the speed reducing member (2) is provided inside the rotating member (1), and the speed reducing member (2) is meshed with the internal teeth (12).

2. The damper according to claim 1, characterized in that The rotating member (1) is provided with a convex shaft (13), the speed reducing member (2) is provided with a groove (21), and the groove (21) is sleeved on the convex shaft (13).

3. The damper according to claim 2, characterized in that: The outer wall of the speed reducing member (2) is provided with protruding teeth (22).

4. The damper according to claim 3, characterized in that: The rotating member (1) is provided with a primary slot (14) and a secondary slot (15), the convex shaft (13) is arranged in the primary slot (14), the internal tooth (12) is arranged in the secondary slot (15), the reduction member (2) is divided into an upper section (23) and a lower section (24), the convex tooth (22) is located between the upper section (23) and the lower section (24), the lower section (24) is located in the primary slot (14), and the convex tooth (22) is located in the secondary slot (15).

5. The damper according to claim 4, characterized in that It also comprises a cover (3), a three-level slot (16) is provided in the rotating member (1), the cover (3) is sleeved on the upper section (23), and the cover (3) and the upper section (23) are located together in the three-level slot (16).

6. The damper according to claim 5, characterized in that It also includes a rubber ring (4), which is arranged between the cover (3) and the speed reducer (2).

7. The damper according to claim 1, characterized in that The speed reducer (2) is provided with a fixing hole (25) and a fixing member (26), and the fixing member (26) is inserted into the fixing hole (25).

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