Novel gear damper

Abstract

The utility model relates to the technical field of damping devices, in particular to a novel gear damper. A novel gear damper comprises a shell and a rotating body, a cylinder is arranged in the center of the shell, the rotating body is clamped on the cylinder, a damping cavity is formed between the outer wall of the rotating body and the inner wall of the shell, damping liquid is injected into the damping cavity, a rotating shaft is arranged in the center of the top of the rotating body and penetrates through a cover plate, the cover plate is arranged on the shell in a sealed mode, and the rotating shaft is sleeved with a gear. The lower part of the rotating body is provided with a rotating body, the outer wall of the rotating body is sunken, the inner side between the rotating bodies is provided with a U-shaped groove, and the two sides of the rotating body are provided with inclined planes. The gear has the advantages that the barbs are arranged on the inner wall of the middle of the gear, the cross sections of the barbs are triangular, the barbs are clamped on the oil storage grooves and prevented from falling off, the outer wall of the rotating body is sunken, the U-shaped grooves are formed in the inner sides between the convex bodies, the two sides of the convex bodies are inclined faces, even resistance is obtained due to the fact that flowing of damping oil is blocked, the damping effect is lasting, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbing devices, in particular to a novel gear damper. Background Art

[0002] Gear dampers are widely used in various car glasses cases, ashtrays, double-opening armrests, hidden handles or boxes, roller blinds and other products. They have the functions of shockproof and slowing down the opening and closing speed. The damper usually includes a housing, a rotating shaft and a sealing component. The rotating shaft is rotatably installed in the housing. Since the gap between the rotating shaft and the accommodating cavity needs to be filled with silicone oil, when the rotating shaft rotates during operation, the rotating shaft and the cavity wall of the accommodating cavity are pressed and rubbed under the action of centrifugal force, so that the gap spacing gradually decreases with the rotation of the rotating shaft, causing the damping oil in the gap to be continuously squeezed out of the gap with the rotation of the rotating shaft, resulting in uneven distribution of the damping oil in the gap, affecting the stability of the rotating shaft, and thus affecting the overall shockproof and slowing down of the opening and closing speed of the gear damper. Summary of the invention

[0003] In order to solve the technical problem that the uneven distribution of damping oil affects the stability, the utility model provides a novel gear damper.

[0004] The technical solution of the utility model is as follows:

[0005] A novel gear damper comprises an outer shell and a rotating body, wherein a cylinder is provided at the center of the outer shell, a rotating body is clamped on the cylinder, a damping cavity is formed between the outer wall of the rotating body and the inner wall of the outer shell, a damping liquid is injected into the damping cavity, a rotating shaft is provided at the top center of the rotating body, the rotating shaft passes through a cover plate, the cover plate is sealed on the outer shell, a gear is sleeved on the rotating shaft, a braking body is provided on the upper part of the rotating shaft, a rotating body is provided on the lower part of the rotating body, a convex body is formed by a depression on the outer wall of the rotating body, a U-shaped groove is provided on the inner side between the convex bodies, five convex bodies are provided, and both sides of the convex bodies are inclined surfaces.

[0006] The inner wall of the shell protrudes upward to form a convex ring.

[0007] The inner wall of the outer side of the cover plate is recessed with a convex ring b for fixing the convex ring a, and the inner wall of the inner side of the cover plate is provided with a sealing step, and the sealing step is provided with a sealing ring, and the sealing ring is sleeved on the convex ring c of the rotating body.

[0008] The middle of the brake body is recessed to provide an oil storage groove.

[0009] The shell is provided with connecting plates at both sides, and the connecting plates are provided with shaft holes.

[0010] A circle of grooves is arranged at the bottom of the inner wall of the shell.

[0011] The technical solution of the utility model has a novel structure and an ingenious and simple design. A barb is provided on the middle inner wall of the gear. The cross section of the barb is triangular and is clamped on the oil storage groove to prevent falling off. The outer wall of the swivel is recessed, and the inner side between the swivels is a U-shaped groove and the two sides are inclined surfaces. The damping oil has storage space. Since the flow of the damping oil is blocked, uniform resistance is obtained, and the damping effect is lasting and the service life is long. The groove makes the central groove and cylinder of the swivel also produce a damping effect with the damping oil, further making the resistance more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 , 3 It is a structural schematic diagram of a cross-sectional view of the utility model;

[0014] Figure 4 It is a structural schematic diagram of the housing of the utility model;

[0015] Figure 5 It is a structural schematic diagram of the cover plate of the utility model;

[0016] Figure 6 It is a structural schematic diagram of the rotating body of the utility model;

[0017] Figure 7 It is a structural schematic diagram of the gear of the utility model. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Example

[0020] like Figure 1 , 2 A novel gear damper shown in Figures 3, 4, 5, 6 and 7 comprises a shell 1 and a rotating body 7, wherein a cylinder 2 is provided at the center of the shell 1, a rotating body 7 is clamped on the cylinder 2, a damping cavity is formed between the outer wall of the rotating body 7 and the inner wall of the shell 1, a damping liquid is injected into the damping cavity, a rotating shaft is provided at the top center of the rotating body 7, the rotating shaft passes through a cover plate 4, the cover plate 4 is sealed on the shell 1, a gear 5 is sleeved on the rotating shaft, a brake body 11 is provided on the upper part of the rotating shaft 9, the rotating body 7 is provided at the lower part of the rotating body 7, the outer wall of the rotating body 12 is recessed to form a convex body, a U-shaped groove 16 is provided on the inner side between the convex bodies, the number of the convex bodies is five, and there are inclined surfaces 15 on both sides of the convex bodies.

[0021] The inner wall of the housing 1 protrudes upward to form a protruding ring 14 .

[0022] The outer inner wall of the cover plate 4 is recessed with a convex ring b13 for fixing the convex ring a14 , and the inner inner wall of the cover plate 4 is provided with a sealing step 3 , and the sealing step 3 is provided with a sealing ring 8 , which is sleeved on the convex ring c18 of the rotating body 7 .

[0023] The brake body 11 is recessed in the middle to form an oil storage groove, and both sides of the brake body 11 are flat-cut.

[0024] The housing 1 is provided with connecting plates at both sides, and the connecting plates are provided with shaft holes 6.

[0025] A circle of grooves 10 is provided at the bottom of the inner wall of the housing 1 .

[0026] When in use, a barb 17 is provided on the middle inner wall of the gear, and the cross section of the barb is triangular. The cover plate 4 seals the damping oil in the damping chamber, and the rotating shaft 9 rotates to drive the gear 5 and the matching part to move. The shaft hole 6 fixes the damping on the matching part to ensure that it does not move. There is a groove 10 on the bottom surface of the shell 1, and a U-shaped groove 16 is provided on the inner side between the convex bodies, and there are inclined surfaces 15 on both sides, which not only reserve space for damping oil storage, but also obtain uniform resistance due to the obstruction of the flow of damping oil, and the damping effect is long-lasting and the service life is long; the groove 10 makes the central groove and cylinder of the swivel also produce a damping effect with the damping oil, further making the resistance more uniform.

[0027] It should be understood that the above description is only a preferred embodiment of the present invention and is not sufficient to limit the technical solution of the present invention. For ordinary technicians in this field, within the spirit and principles of the present invention, additions, substitutions, changes or improvements can be made according to the above description, and all these additions, substitutions, changes or improved technical solutions should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A novel gear damper, comprising a housing (1) and a rotating body (7), characterized in that: A cylinder (2) is provided at the center of the housing (1), a rotating body (7) is clamped on the cylinder (2), a damping cavity is formed between the outer wall of the rotating body (7) and the inner wall of the housing (1), and a damping liquid is injected into the damping cavity. A rotating shaft (9) is provided at the center of the top of the rotating body (7), the rotating shaft (9) passes through a cover plate (4), the cover plate (4) is sealed and arranged on the housing (1), a gear (5) is sleeved on the rotating shaft (9), a braking body (11) is provided on the upper part of the rotating shaft (9), a rotating body (12) is provided on the lower part of the rotating body (7), an outer wall of the rotating body (12) is recessed to form a convex body, and a U-shaped groove (16) is provided on the inner side between the convex bodies.

2. A novel gear damper according to claim 1, characterized in that: The inner wall of the housing (1) is raised upward to form a convex ring a (14); the outer inner wall of the cover plate (4) is recessed to form a convex ring b (13) for fixing the convex ring a (14); a sealing step (3) is provided on the inner wall of the inner side of the cover plate (4); a sealing ring (8) is provided on the sealing step (3); and the sealing ring (8) is sleeved on the convex ring c (18) of the rotating body (7).

3. A novel gear damper according to claim 1, characterized in that: The brake body (11) is recessed in the middle and provided with an oil storage groove.

4. A novel gear damper according to claim 1, characterized in that: The housing (1) is provided with connecting plates on both sides, and the connecting plates are provided with shaft holes (6).

5. A novel gear damper according to claim 1, characterized in that: A circle of grooves (10) is provided at the bottom of the inner wall of the housing (1).

6. A novel gear damper according to claim 1, characterized in that: The number of the convex bodies is five, and both sides of the convex bodies are inclined surfaces (15).

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