Gear damper

Abstract

The utility model relates to the technical field of damping devices, in particular to a gear damper. A 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 upper part of the rotating shaft is a brake body, and the lower part of the rotating body is a rotating body which is cross-shaped. The utility model has the beneficial effects that the structure is novel, the design is ingenious and simple, the outer wall of the rotating body is concavely provided with the step, damping oil has more space, the outer wall of the step is arc-shaped, the rotation is more resistance-free, the convex ring at the bottom end of the rotating body ensures that the bottom surface of the rotating body is not in complete contact with the bottom surface of the shell, and the damping oil easily enters the central groove of the rotating body; and the cylinder is more uniform and smoother, the stability is better, and the use is more durable.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbing devices, in particular to a 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 damping oil, after long-term use, the damping oil in the gap is unevenly distributed, affecting the stability of the rotating shaft, thereby affecting the overall shockproof and opening and closing speed slowing effect of the gear damper. Summary of the invention

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

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

[0005] A gear damper comprises an outer shell and a rotating body, wherein a cylinder is provided at the center of the outer shell, the rotating body is clamped on the cylinder, a damping chamber is formed between the outer wall of the rotating body and the inner wall of the outer shell, the damping chamber is injected with damping fluid, 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, the upper part of the rotating shaft is a brake body, the lower part of the rotating body is a rotating body, and the rotating body is in a cross shape.

[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 concavely provided with a clamping groove for fixing the convex ring, the inner wall of the inner side of the cover plate is provided with a sealing step, the sealing step is provided with a sealing ring, and the sealing ring is sleeved on the rotating body.

[0008] The lower part of the brake body is provided with an oil storage notch, the outer wall of the rotating body is recessed with a step, the outer wall of the step is arc-shaped, and the bottom end of the rotating body is provided with a ring body.

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

[0010] The technical solution of the utility model has a novel structure and an ingenious and simple design. The outer wall of the swivel is recessed with steps, which provide more space for the damping oil. The outer wall of the step is arc-shaped, and the rotation is more resistance-free. The convex ring at the bottom end of the swivel prevents the bottom surface of the swivel from completely contacting the bottom surface of the shell body, and the damping oil can easily enter the central groove of the swivel, which is more evenly and smoothly with the cylinder, has better stability, and is more durable in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1It is a structural schematic diagram of the utility model;

[0012] Figure 2 , 3 It is a structural schematic diagram of a cross-sectional view of the utility model;

[0013] Figure 4 It is a structural schematic diagram of the housing of the utility model;

[0014] Figure 5 , 6 It is a structural schematic diagram of the cover plate of the utility model;

[0015] Figure 7 , 8 It is a structural schematic diagram of the rotating body of the utility model. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments. Example

[0017] like Figure 1 , 2 A gear damper shown in Figures 3, 4, 5, 6, 7 and 8 comprises a shell 1 and a rotating body 7. A cylinder 2 is provided at the center of the shell 1, and the rotating body 7 is clamped on the cylinder 2. A damping chamber is formed between the outer wall of the rotating body 7 and the inner wall of the shell 1. The damping chamber is injected with damping oil. A rotating shaft 9 is provided at the top center of the rotating body 7. The rotating shaft 9 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 9. The upper part of the rotating shaft 9 is a brake body 10, and the lower part of the rotating body 7 is a rotating body 11. The rotating body 11 is cross-shaped to leave more oil storage space.

[0018] The inner wall of the housing 1 protrudes upward to form a protruding ring 14 .

[0019] The outer inner wall of the cover plate 4 is recessed with a groove 13 for fixing the convex ring 14 , and the inner inner wall of the cover plate 4 is provided with a sealing step 3 , and the sealing step is provided with a sealing ring 8 , which is sleeved on the rotating body 7 .

[0020] The brake body 10 has an oil storage gap at the bottom, and both sides of the brake body 10 are flat-cut. The outer wall of the rotating body 11 is concave and has steps, and the outer wall of the steps is arc-shaped. A ring body 12 is provided at the bottom of the rotating body 7.

[0021] The housing 1 is provided with connecting plates at both sides, and the connecting plates are provided with shaft holes 6.

[0022] When in use, the surface of the gear 5 is smooth and easy to process. The cover plate 4 seals the damping oil in the damping chamber through a welding process. 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. The ring body 12 at the bottom end of the rotating body 7 makes the bottom surface of the rotating body 11 not completely contact with the bottom surface of the shell 1, which not only leaves a certain amount of oil storage space, but also allows the damping oil to easily enter the central groove of the rotating body 11, making it more evenly and smoothly connected with the cylinder 2, with better stability and longer lasting use.

[0023] 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 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 chamber 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 chamber. 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, a brake body (10) is provided on the upper part of the rotating shaft (9), and a rotating body (11) is provided on the lower part of the rotating body (7), and the rotating body (11) is in a cross shape.

2. A gear damper according to claim 1, characterized in that: The inner wall of the housing (1) protrudes upwards to form a protruding ring (14).

3. A gear damper according to claim 1, characterized in that: The outer inner wall of the cover plate (4) is recessed with a clamping groove (13) for fixing the convex ring (14), the inner inner wall of the cover plate (4) is provided with a sealing step (3), the sealing step (3) is provided with a sealing ring (8), and the sealing ring (8) is sleeved on the rotating body (7).

4. A gear damper according to claim 1, characterized in that: The brake body (10) has an oil storage notch at its lower portion, the outer wall of the rotating body (11) is recessed and provided with a step, the outer wall of the step is arc-shaped, and a ring body (12) is provided at the bottom end of the rotating body (7).

5. The 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).

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