Novel damper

Abstract

The utility model relates to the technical field of automobile parts, in particular to a novel damper. A novel damper comprises a shell and a rotor, a check ring is inwards formed at the bottom of the shell, a damping cavity is formed between the inner wall of the shell and the check ring, an end cover is arranged on the upper portion of the rotor, an annular rotating core is arranged on the lower portion of the rotor, the rotating core is coaxially installed in the damping cavity, and damping liquid is injected into a gap between the damping cavity and the rotating core. The outer wall of the upper portion of the rotating core is transversely recessed to form a recessed groove, and the bottom end of the rotating core is provided with a damping notch communicated with the inner cavity. The rotating core has the advantages that the structure is novel, the design is ingenious and simple, the concave groove is formed in the upper portion of the rotating core, and the damping notch is formed in the lower portion of the rotating core, so that even resistance is obtained in the rotating process of the rotating core 4 due to the fact that flowing of damping liquid is blocked, the damping effect is lasting, and the service life is long; the damping gap enables the inner cavity of the rotating core 4 and the damping oil to generate a damping effect, so that the resistance is further more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, and in particular to a novel damper. Background Art

[0002] The existing rotary dampers used for car roof handles or similar locations are generally installed on the rotating shaft of the handle. The general structure of this type of damper consists of a shell with a cavity and a rotor arranged in the shell cavity, and the cavity is filled with damping fluid. For example, a rotor with multiple axial teeth on the outer wall has a good damping effect at the beginning of use, but after repeated use, gaps gradually appear between the axial teeth on the rotor and the damping fluid, resulting in a weakening of the tension of the damping fluid near the axial teeth of the rotor, and correspondingly, the damping decreases when the rotor rotates relative to the shell. After a period of use, the damper loses its damping function and can only be used as an ordinary connecting hinge, which results in a very unsatisfactory use effect. Summary of the invention

[0003] In order to solve the above technical problem that the damping is reduced and the damping function is lost after repeated use, the utility model provides a new type of damper.

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

[0005] A novel damper comprises a shell and a rotor, wherein a retaining ring is formed inwardly at the bottom of the shell, a damping cavity is arranged between the inner wall of the shell and the retaining ring, an end cover is arranged at the upper part of the rotor, and a ring-shaped rotating core is arranged at the lower part of the rotor. The rotating core is coaxially installed in the damping cavity, and a damping fluid is injected into the gap between the damping cavity and the rotating core. A recessed groove is arranged in a transverse recessed manner on the upper outer wall of the rotating core, and a damping notch communicating with the inner cavity is arranged at the bottom end of the rotating core.

[0006] The lower outer wall of the end cover is provided with a sealing step, and the sealing step is provided with a sealing ring a.

[0007] The number of the damping notches is four, and the damping notches are in an inverted U shape.

[0008] The outer wall of the top of the retaining ring is provided with a step, and a sealing ring b is provided at the step.

[0009] The upper inner wall of the shell is provided with a circle of clamping grooves, and the upper outer wall of the rotor is provided with a convex ring, which is clamped on the clamping grooves.

[0010] The technical solution of the utility model has a novel structure and an ingenious and simple design. There is a concave groove on the upper part of the rotating core and a damping notch on the lower part. This makes the rotating core 4 obtain uniform resistance due to the obstruction of the flow of the damping fluid during rotation, and the damping effect is long and the service life is long; the damping notch makes the inner cavity of the rotating core 4 also produce a damping effect with the damping oil, further making the resistance more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 , 2 It is a structural schematic diagram of the utility model;

[0012] Figure 3 It is a cross-sectional view of the utility model;

[0013] Figure 4 , 5 7 is a schematic diagram of the structure of the rotor of the utility model;

[0014] Figure 6 It is a structural schematic diagram of the shell of the utility model. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments. Example

[0016] like Figure 1 , 2 A novel damper shown in Figures 3, 4, 5, 6 and 7 comprises a shell 6 and a rotor 1, wherein a retaining ring 15 is formed inwardly at the bottom of the shell 6, a damping chamber 3 is provided between the inner wall of the shell 6 and the retaining ring 15, an end cover 7 is provided at the upper part of the rotor 1, and a ring-shaped rotating core 4 is provided at the lower part of the rotor 1. The rotating core 4 is coaxially installed in the damping chamber 3, and a damping fluid is injected into the gap between the damping chamber 3 and the rotating core 4. A recessed groove 9 is provided in the upper outer wall of the rotating core 4 laterally, and a damping notch 10 communicating with the inner chamber is provided at the bottom end of the rotating core 4.

[0017] The lower outer wall of the end cover 7 is provided with a sealing step 2, and the sealing step 2 is provided with a sealing ring a8.

[0018] The number of the damping notches 10 is four, and the damping notches 10 are in an inverted U shape.

[0019] The outer wall of the top of the retaining ring 15 is provided with a step, and a sealing ring b is provided at the step.

[0020] The upper inner wall of the housing 6 is provided with a circle of grooves 16, and the upper outer wall of the rotor is provided with a convex ring 14, which is clamped on the grooves 16 to improve the sealing effect and prevent the damping fluid from leaking out, which accelerates the damping failure.

[0021] When in use, the housing 6 is cylindrical, and a shaft hole 13 is opened in the center thereof, which is through from top to bottom, to accommodate the rotation of the external shaft. The damping chamber 3 is annular, and the damping chamber 3 is coaxially arranged with the shaft hole 13. The bottom of the damping chamber 3 is sealed, and the upper end is open. A sealing step 2 coaxial with the shaft hole 13 is provided at the top of the housing 6. The sealing step 2 is used to clamp the sealing ring a8 to prevent the damping oil from leaking out. The housing 6 is not provided with a circle of inner grooves like some dampers, so that the overall processing is more convenient. The upper edge of the outer wall of the housing 6 A convex positioning block 5 is axially arranged to prevent the shell 6 from rotating, and there are four damping notches 10 and four recessed grooves 9. The four damping notches 10 are unevenly distributed, and the four recessed grooves 9 are evenly distributed. The rotating core 4 has recessed grooves 9 on the upper part and damping notches 10 on the lower part. This ensures that the rotating core 4 obtains uniform resistance due to the obstruction of the flow of damping fluid during rotation, and the damping effect is long-lasting and the service life is long. The damping notch 10 makes the inner cavity of the rotating core 4 also produce a damping effect with the damping oil, further making the resistance more uniform.

Claims

1. A novel damper, comprising a housing (6) and a rotor (1), characterized in that: A retaining ring (15) is formed inwardly at the bottom of the shell (6), a damping chamber (3) is provided between the inner wall of the shell (6) and the retaining ring (15), an end cover (7) is provided at the upper part of the rotor (1), a ring-shaped rotating core (4) is provided at the lower part of the rotor (1), the rotating core (4) is coaxially mounted in the damping chamber (3), a damping fluid is injected into the gap between the damping chamber (3) and the rotating core (4), a recessed groove (9) is provided in a transverse recessed manner on the upper outer wall of the rotating core (4), and a damping notch (10) communicating with the inner chamber is provided at the bottom end of the rotating core (4).

2. A novel damper according to claim 1, characterized in that: The lower outer wall of the end cover (7) is provided with a sealing step (2), and the sealing step (2) is provided with a sealing ring a (8).

3. A novel damper according to claim 1, characterized in that: The number of the damping notches (10) is four, and the damping notches (10) are in an inverted U shape.

4. A novel damper according to claim 1, characterized in that: The outer wall of the top of the retaining ring (15) is provided with a step, and a sealing ring b is provided at the step.

5. A novel damper according to claim 1, characterized in that: The upper inner wall of the housing (6) is provided with a circle of clamping grooves (16), and the upper outer wall of the rotor is provided with a convex ring (14), and the convex ring (14) is clamped on the clamping grooves (16).

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