Damper

Abstract

The utility model relates to the technical field of automobile parts, in particular to a damper. The 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. A damping face is arranged on the outer wall of the rotating core in the axial direction, a damping hole communicated with an inner cavity of the rotating core is formed in the damping face, the inner wall of the shell is a non-standard wall body, the non-standard wall body is different in diameter, the inner wall of the shell is a non-standard wall body, the non-standard wall body is different in diameter, an annular face is arranged in the middle of the inner wall of the end cover, and a clamping ring is arranged at the top end of the check ring and clamped into the annular face. The utility model has the beneficial effects that the diameter of the non-standard wall body is increased from small to large, the special use is convenient, the applicability is more, and when the damping strength is high, the convex ring is in contact with the ring surface to borrow force, and the boss is in contact with the arc-shaped outer wall at the top of the check ring.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a 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. There are various rotor structures of this type of damper, such as a rotor with multiple axial teeth on the outer wall. Usually, the inner diameter of the damper shell is consistent with the rotor gap, and the damping requirements do not change much. However, in some scenarios, the damping is increased. When the damping strength is large, the rotor needs more favorable support, otherwise it is easy to be damaged, affecting the use of the product. Summary of the invention

[0003] In order to solve the above technical problem that the rotor needs more support when the damping changes, the utility model provides a damper.

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

[0005] The 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 circular 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 filled in the gap between the damping cavity and the rotating core. A damping surface is axially provided on the outer wall of the rotating core, and a damping hole connected with the inner cavity of the rotating core is provided on the damping surface. The inner wall of the shell is a non-standard wall body with different diameters, the inner wall of the shell is a non-standard wall body with different diameters, an annular surface is arranged in the middle of the inner wall of the end cover, and a clamping ring is arranged at the top of the retaining ring, and the clamping ring is clamped into the annular surface.

[0006] A sealing step is provided at the opening of the shell, and a circle of depression is provided at the lower end of the shell.

[0007] The outer wall of the rotating core has smooth cutouts on both sides, and two damping surfaces parallel to each other are arranged.

[0008] The damping surface is perpendicular to the diameter of the rotating core.

[0009] A sealing ring a is sleeved on the bottom of the end cover, and the sealing ring a is sleeved on the rotating core.

[0010] 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.

[0011] There are two non-standard wall bodies, which are connected by arc surfaces, and the diameters of the non-standard wall bodies increase from small to large.

[0012] The outer wall of the shell is provided with two convex surfaces, which are connected to the outer wall of the shell by an arc surface. The outer wall of the shell is provided with two outwardly protruding positioning blocks which are arranged in parallel.

[0013] 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.

[0014] A boss is arranged on the inner wall of the lower part of the annular surface, a slope is arranged on the bottom end of the boss, and an arc-shaped outer wall is arranged on the outer wall of the top of the retaining ring.

[0015] The technical solution of the utility model has a novel structure, ingenious and simple design, and the diameter of the non-standard wall body increases from small to large, so the damping strength also varies, which is convenient for special use and has more applicability. When the damping strength is large, the convex ring contacts the annular surface for force, and the boss contacts the arc-shaped outer wall at the top of the retaining ring, providing more supporting force to ensure the normal use of the product. The damping hole connects the damping surface and the damping groove, which makes the rotating core obtain uniform resistance due to the obstruction of the flow of the damping fluid during the rotation process, and the damping effect is long-lasting and the service life is long; the setting of the damping groove makes the inner cavity of the rotating core also produce a damping effect with the damping oil, further making the resistance more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 , 2 It is a structural schematic diagram of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the housing of the utility model;

[0018] Figure 4 , 5 8 is a schematic diagram of the structure of the housing of the utility model;

[0019] Figure 6 It is a structural schematic diagram of part of the utility model;

[0020] Figure 7 It is a structural schematic diagram of the rotor of the utility model;

[0021] Fig. 9 It is a structural schematic diagram of the cross section of the utility model. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments. Example

[0023] like Figure 1 , 2The damper shown in , 3, 4, 5, 6, 7, 8, and 9 comprises a shell 6 and a rotor 1, a retaining ring 15 is formed inwardly at the bottom of the shell 6, a damping chamber 3 is arranged between the inner wall of the shell 6 and the retaining ring 15, an end cover 7 is arranged on the upper part of the rotor 1, two protrusions are arranged on the top of the end cover 7, a circular ring-shaped rotating core 4 is arranged at the lower part of the rotor 1, the rotating core 4 is coaxially installed in the damping chamber 3, a damping fluid is injected into the gap between the damping chamber 3 and the rotating core 4, a damping surface 9 is axially provided on the outer wall of the rotating core 4, a damping hole 10 connected with the inner chamber of the rotating core 4 is provided on the damping surface 9, the inner wall of the shell 6 is a non-standard wall body with different diameters, an annular surface 11 is arranged in the middle of the inner wall of the end cover 7, a retaining ring 17 is arranged on the top of the retaining ring 15, the retaining ring 17 is inserted into the annular surface 11, and is also supported in the middle.

[0024] A sealing step 2 is provided at the opening of the shell 6, and a circle of depression is provided at the lower end of the shell 6.

[0025] The outer wall of the rotating core 4 has smooth cutouts on both sides, and is provided with two damping surfaces 9 parallel to each other.

[0026] The damping surface 9 is perpendicular to the diameter of the rotating core 4 .

[0027] A sealing ring a8 is sleeved on the bottom of the end cover 7 , and the sealing ring a8 is sleeved on the rotating core 4 .

[0028] 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.

[0029] There are two non-standard wall bodies, which are connected by arc surfaces, and the diameters of the non-standard wall bodies increase from small to large.

[0030] The outer wall of the shell 6 is provided with two convex surfaces, which are connected to the outer wall of the shell 6 by an arc surface. The outer wall of the shell 6 is provided with two convex positioning blocks 5 which are arranged in parallel.

[0031] 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 , which is clamped on the clamping grooves 16 .

[0032] A boss 18 is provided on the inner wall of the lower part of the annular surface 11 , and a slope is provided on the bottom end of the boss 18 . An arc-shaped outer wall is provided on the top outer wall of the retaining ring 15 , and the boss 18 contacts the arc-shaped outer wall on the top of the retaining ring 15 .

[0033] When in use, the shell 6 is generally 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 damping chamber 3 on the shell 6. The sealing step 2 is used to clamp the sealing ring a8 to prevent the damping oil from leaking out. A convex positioning block 5 is provided on the outer wall of the shell 6 along the axial direction to prevent the shell 6 from rotating and can stably fix the shell 6 in the installation position. Since a damping surface 9 with a damping hole 10 is provided on the outer wall of the rotating core 4, the rotating core 4 Two damping surfaces 9 are provided on the outer wall thereof opposite to each other, a damping groove 12 is provided on the inner wall of the rotating core 4 at a position corresponding to the damping surface 9, the bottom plane of the damping groove 12 is parallel to the damping surface 9, and two damping holes 10 are provided on each damping surface 9, and the damping holes 10 connect the damping surface 9 and the damping groove 12, so that the rotating core 4 obtains uniform resistance due to the obstruction of the flow of the damping fluid during the rotation process, and the damping effect is long-lasting and the service life is long; the setting of the damping groove 12 makes the inner cavity of the rotating core 4 also produce a damping effect with the damping oil, further making the resistance more uniform.

[0034] 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 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 damping surface (9) is provided on the outer wall of the rotating core (4) along the axial direction, a damping hole (10) is provided on the damping surface (9) and is connected to the inner chamber of the rotating core (4), the inner wall of the shell (6) is a non-standard wall body, and the diameter of the non-standard wall body is different, an annular surface (11) is provided in the middle of the inner wall of the end cover (7), a clamping ring (17) is provided at the top end of the retaining ring (15), and the clamping ring (17) is clamped into the annular surface (11).

2. The damper according to claim 1, characterized in that: A sealing step (2) is provided at the opening of the shell (6), and a circle of depression is provided at the lower end of the shell (6).

3. The damper according to claim 1, characterized in that: The outer wall of the rotating core (4) has smooth cutouts on both sides, and is provided with two mutually parallel damping surfaces (9).

4. The damper according to claim 1, characterized in that: The damping surface (9) is perpendicular to the diameter of the rotating core (4).

5. The damper according to claim 1, characterized in that: A sealing ring a (8) is sleeved on the bottom of the end cover (7), and the sealing ring a (8) is sleeved on the rotating core (4).

6. The 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.

7. The damper according to claim 1, characterized in that: There are two non-standard wall bodies, which are connected by arc surfaces, and the diameters of the non-standard wall bodies increase from small to large.

8. The damper according to claim 1, characterized in that: The outer wall of the shell (6) is provided with a convex surface, there are two convex surfaces, the convex surfaces are connected to the outer wall of the shell (6) by an arc surface, and the outer wall of the shell (6) is provided with an outwardly protruding positioning block (5), the number of the positioning blocks (5) is two, and they are arranged in parallel.

9. The 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).

10. The damper according to claim 1, characterized in that: The lower inner wall of the annular surface (11) is provided with a boss (18), the bottom end of the boss (18) is provided with an inclined surface, and the top outer wall of the retaining ring (15) is provided with an arc-shaped outer wall.

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