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, damping liquid is injected into a gap between the damping cavity and the rotating core, and the upper portion of the rotating core is sleeved with a ring sleeve. The ring is in contact with the outer wall of the upper portion of the shell, and a damping notch communicated with the inner cavity is formed in the bottom end of the rotating core. The damper has the advantages that the damper is novel in structure, ingenious and simple in design and low in cost, the ring sleeve is convenient to replace when damaged, even resistance is obtained due to the fact that flowing of damping liquid is blocked by the four damping notches and the damping faces a, the damping effect is lasting, and the service life is long; and the damping surface b enables the inner cavity of the rotating core and the damping oil to generate a damping effect, so that the resistance is 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 damper used for the roof handle of the car or the like is 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. There are various rotor structures of this type of damper. Some rotors are more easily damaged than the shell, and the damping effect is very good at the beginning of use. However, 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 the damping decreases when the rotor rotates relative to the shell. After a period of use, the damper loses its damping function. Summary of the invention

[0003] In order to solve the above technical problems of poor damping effect on the upper part of the rotor and after long-term use, the utility model provides a novel 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 collar is arranged on the upper part of the rotating core, and the collar contacts the upper outer wall of the shell, and a damping notch communicating with the inner cavity is arranged at the bottom end of the rotating core.

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

[0007] The end cap has a diameter smaller than the rotating core diameter.

[0008] The number of the damping notches is four, which are evenly distributed.

[0009] A damping surface a is provided on the damping notch, which is recessed inwards.

[0010] The outer wall at the top of the retaining ring is provided with a step, a sealing ring b is provided at the step, and a damping surface b is provided in a depression on the outer wall below the step. The number of damping surfaces b is three and they are evenly distributed.

[0011] The technical solution of the utility model has a novel structure, an ingenious and simple design, is easy to replace if the snare is damaged, and has low cost. The four damping notches and the damping surface a obtain uniform resistance due to the obstruction of the flow of the damping liquid, and the damping effect is lasting and the service life is long; the damping surface b enables the inner cavity of the rotating core to also produce a damping effect with the damping oil, further making the resistance more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 , 2 5 is a schematic diagram of the structure of the utility model;

[0013] Figure 3 It is a cross-sectional view of the utility model;

[0014] Figure 4 It is a schematic diagram of the structure of the rotor and the ring of the utility model;

[0015] Figure 5 It is a structural schematic diagram of the utility model in an explosion state. DETAILED DESCRIPTION

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

[0017] like Figure 1 , 2 The novel damper shown in , 3, 4, and 5 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 snare 9 is provided on the upper part of the rotating core 4, and the snare 9 contacts the upper outer wall of the shell 6, and a damping notch 10 communicating with the inner chamber is provided at the bottom end of the rotating core 4.

[0018] The inner wall of the trap 9 is provided with a sealing step 2, the lower outer wall of the end cover 7 is clamped with the sealing step 2, and the sealing step 2 is provided with a sealing ring a8. The end cover 7 and the rotating core 4 are both annular bodies, which are small at the top and large at the bottom, so that the trap 9 is easy to fit and the trap 9 is easy to replace if it is damaged.

[0019] The diameter of the end cover 7 is smaller than the diameter of the rotating core 4 .

[0020] The number of the damping notches 10 is four and they are evenly distributed.

[0021] The damping notch 10 is provided with a damping surface a12 which is recessed inwardly.

[0022] The outer wall at the top of the retaining ring 15 is provided with a step, and a sealing ring b is provided at the step. The outer wall below the step is recessed with a damping surface b11. The number of damping surfaces b11 is three and they are evenly distributed.

[0023] When in use, the shell 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 snare 9 coaxial with the shaft hole 13 is arranged at the top of the damping chamber 3 on the shell 6. Some damper rotors are of integrated design, and the upper part is completely replaced if it is lost. The present structure is of split design, and the inner wall of the snare 9 has a sealing step 2, which is used to clamp the sealing ring a8 to prevent To prevent the damping oil from leaking out, the shell 6 is not provided with a circle of inner grooves like some dampers, so that the overall processing is more convenient. A convex positioning block 5 is axially provided on the outer wall of the shell 6 to prevent the shell 6 from rotating. There are four damping notches 10 and a damping surface a12, which makes the rotating core 4 obtain 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 surface b11 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 top of the rotor (1), a ring-shaped rotating core (4) is provided at the bottom 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 collar (9) is provided on the top of the rotating core (4), the collar (9) is in contact with the upper outer wall of the shell (6), and a damping notch (10) communicating with the inner chamber is provided at the bottom end of the rotating core (4).

2. The novel damper according to claim 1 is characterized in that: The inner wall of the ring (9) is provided with a sealing step (2), the lower outer wall of the end cover (7) is snap-fitted with the sealing step (2), and the sealing step (2) is provided with a sealing ring a (8).

3. The novel damper according to claim 1 is characterized in that: The diameter of the end cover (7) is smaller than the diameter of the rotating core (4).

4. The novel damper according to claim 1 is characterized in that: The number of the damping notches (10) is four, which are evenly distributed.

5. The novel damper according to claim 1 is characterized in that: A damping surface a (12) is provided inwardly recessed on the upper side of the damping notch (10).

6. The novel damper according to claim 1 is characterized in that: The outer wall at the top of the retaining ring (15) is provided with a step, a sealing ring b is provided at the step, and a damping surface b (11) is provided in a recessed manner on the outer wall below the step. The number of damping surfaces b (11) is three and they are evenly distributed.

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