Novel rotary damper

Abstract

The utility model belongs to the technical field of automobile parts, and particularly relates to a novel rotary damper. A novel rotary damper comprises a shell and a rotor, the lower portion of the shell inwards forms an annular body, baffles are annularly arranged on the edge of the inner side of the annular body, the baffles are arranged in a trisection mode, gaps are formed between the baffles, a damping cavity is formed between the inner wall of the shell and the baffles, an end cover is arranged on the upper portion of the rotor, an annular rotary core is arranged on the outer ring of the bottom of the rotor, and an insertion column is arranged on the inner ring. 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, the rotating core is transversely provided with a damping hole communicated with the inserting column, the inserting column is inserted into the annular body, and a cover plate is arranged at the bottom of the shell. The rotating core has the advantages that the rotating core is practical and firm, damping holes are formed in the upper portion and the lower portion of the rotating core, the baffles are arranged on the inner side of the rotating core, gaps are formed between the baffles, and the gaps form channels, so that even resistance is obtained in the rotating process of the rotating core due to the fact that flowing of damping liquid is blocked.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts, and in particular to a novel rotary 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 is composed 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 dampers are not strong enough to rotate on the cavity, and the damping effect is very good 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 the corresponding damping is reduced 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 insufficient rotation strength and easy loss of damping function due to reduced damping, the utility model provides a novel rotary damper.

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

[0005] A novel rotary damper comprises a shell and a rotor, wherein the lower part of the shell forms an annular body inwardly, a baffle is arranged around the inner edge of the annular body, the baffle is arranged in three equal parts, there is a gap between the baffles, a damping cavity is arranged between the inner wall of the shell and the baffle, an end cover is arranged on the upper part of the rotor, the outer ring of the bottom of the rotor is a circular ring-shaped rotating core, the inner ring is a plug column, the rotating core is coaxially installed in the damping cavity, the gap between the damping cavity and the rotating core is filled with damping fluid, the rotating core is laterally provided with a damping hole connected to the plug column, the plug column is inserted into the annular body, and a cover plate is provided at the bottom of the shell.

[0006] A sealing step is provided at the opening of the shell, and the upper outer wall of the rotor is clamped with the sealing step.

[0007] The number of the damping holes in the axial direction is two, which are symmetrically arranged.

[0008] The outer wall of the upper part of the rotor is sleeved with a sealing ring a, which is sleeved on the concave ring of the rotating core.

[0009] The top of the baffle is smoothly arranged, and the inner side of the baffle is provided with plug posts.

[0010] The upper inner wall of the shell is provided with a circle of grooves a, the upper outer wall of the rotor is provided with a convex ring a, the convex ring a is clamped on the groove a, the bottom inner wall is provided with a circle of grooves b, the lower outer wall of the rotor is provided with a convex ring b, the convex ring b is clamped on the groove b.

[0011] A notch is provided on the top of the shell body, and the notch is divided into three equal parts.

[0012] The rotor is provided with a groove, the groove and the end cover are at a vertical angle, and the number of the groove and the end cover is two and they are symmetrically arranged.

[0013] The technical solution of the utility model has a novel structure and an ingenious and simple design. In addition to the outer ring, the rotating core rotates in the damping cavity, and the middle is a plug column inserted into the annular body and extended from the cover plate. The two parts have better strength, are practical and firm. Since damping holes are provided on the upper and lower parts of the rotating core, baffles are provided on the inner side, and there are gaps between the baffles, the gaps form channels, 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 lasting and the service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 , 2 It is a structural schematic diagram of the utility model;

[0015] Figure 3 It is a cross-sectional view of the utility model;

[0016] Figure 4 , 5 It is a structural schematic diagram of the housing of the utility model;

[0017] Figure 6 It is a structural schematic diagram of the cover plate of the utility model;

[0018] Figure 7 , 8 It is a structural schematic diagram of the rotor of the utility model. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments. Example

[0020] like Figure 1 , 2 A novel rotary damper shown in Figures 3, 4, 5, 6, 7 and 8 comprises a shell 6 and a rotor 1, wherein the lower part of the shell 6 forms an annular body 15 inwardly, a baffle 9 is arranged around the inner edge of the annular body 15, the baffle 9 is arranged in three equal parts, there is a gap between the baffles 9, a damping chamber 3 is arranged between the inner wall of the shell 6 and the baffle 9, an end cover 7 is arranged on the upper part of the rotor 1, the outer ring of the rotor bottom 1 is a circular ring-shaped rotating core 4, the inner ring is a plug post 11, the rotating core 4 is coaxially installed in the damping chamber 3, the gap between the damping chamber 3 and the rotating core 4 is filled with damping fluid, the rotating core 4 is laterally provided with a damping hole 10 connected with the plug post 11, the plug post 11 is inserted into the annular body 15, a cover plate 12 is provided at the bottom of the shell 6, a convex ring c is provided in the middle of the cover plate 12, and the convex ring c is in contact with the annular body 15.

[0021] A sealing step 2 is provided at the opening of the housing 6 , and the upper outer wall of the rotor 1 is engaged with the sealing step 2 .

[0022] The number of the damping holes 10 in the axial direction is two and they are symmetrically arranged.

[0023] The upper outer wall of the rotor 1 is sleeved with a sealing ring a8, which is sleeved on the concave ring of the rotating core 4.

[0024] The top of the baffle plate 9 is smoothly arranged, and the inner side of the baffle plate 9 is provided with a plug post 11 .

[0025] The upper inner wall of the shell 6 is provided with a circle of grooves a16, the upper outer wall of the rotor is provided with a convex ring a14, the convex ring a14 is clamped on the groove a16, the bottom inner wall is provided with a circle of grooves b17, the lower outer wall of the rotor is provided with a convex ring b18, the convex ring b18 is clamped on the groove b17.

[0026] The top of the shell 6 is provided with a notch, which is divided into three equal parts.

[0027] The rotor 1 is provided with a groove, and the groove and the end cover 7 are at a vertical angle. The number of the groove and the end cover 7 is two and they are symmetrically arranged.

[0028] When in use, the shell 6 is generally cylindrical, with an axial hole 13 extending vertically through the center thereof to accommodate the rotation of the external shaft. The damping chamber 3 is annular, and the damping chamber 3 is coaxially arranged with the axial hole 13. The bottom of the damping chamber 3 is sealed, and the upper end is open. A sealing step 2 coaxial with the axial 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. The shell 6 is stably fixed in the installation position. Since the rotating core 4 is provided with damping holes 10 on the upper and lower sides, a baffle 9 is arranged on the inner side, and there is a gap between the baffles 9, the gap forms a channel, 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 setting of the damping hole 10 makes the outer wall of the plug column 11 of the rotating core 4 also produce a damping effect with the damping oil, further making the resistance more uniform, and the plug column 11 also provides a more solid supporting force, and the middle cover plate 12 extends out in the middle.

Claims

1. A novel rotary damper, comprising a housing (6) and a rotor (1), characterized in that: The lower part of the shell (6) forms an annular body (15) inwardly, and a baffle (9) is arranged around the inner edge of the annular body (15). The baffle (9) is arranged in three equal parts, and there is a gap between the baffles (9). A damping chamber (3) is provided between the inner wall of the shell (6) and the baffle (9). An end cover (7) is provided on the upper part of the rotor (1). The outer ring of the bottom of the rotor (1) is a circular rotating core (4), and the inner ring is a plug post (11). The rotating core (4) is coaxially installed in the damping chamber (3). The gap between the damping chamber (3) and the rotating core (4) is filled with damping fluid. The rotating core (4) is transversely provided with a damping hole (10) connected to the plug post (11). The plug post (11) is inserted into the annular body (15). A cover plate (12) is provided at the bottom of the shell (6).

2. A novel rotary damper according to claim 1, characterized in that: A sealing step (2) is provided at the opening of the housing (6), and the upper outer wall of the rotor (1) is snap-fitted to the sealing step (2).

3. A novel rotary damper according to claim 1, characterized in that: The damping holes (10) are two in number in the axial direction and are symmetrically arranged.

4. A novel rotary damper according to claim 1, characterized in that: The upper outer wall of the rotor (1) is sleeved with a sealing ring a (8), which is sleeved on the recessed ring of the rotating core (4).

5. A novel rotary damper according to claim 1, characterized in that: The top of the baffle (9) is smoothly arranged, and the inner side of the baffle (9) is provided with a plug post (11).

6. A novel rotary damper according to claim 1, characterized in that: The upper inner wall of the housing (6) is provided with a circle of slots a (16), the upper outer wall of the rotor is provided with a convex ring a (14), the convex ring a (14) is clamped on the slot a (16), the bottom inner wall is provided with a circle of slots b (17), the lower outer wall of the rotor is provided with a convex ring b (18), the convex ring b (18) is clamped on the slot b (17).

7. A novel rotary damper according to claim 1, characterized in that: The top of the shell (6) is provided with a notch, which is divided into three equal parts.

8. A novel rotary damper according to claim 1, characterized in that: The rotor (1) is provided with a groove, the groove and the end cover (7) are at a vertical angle, and the number of the groove and the end cover (7) is two and they are symmetrically arranged.

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