Double-seal guide structure

Abstract

The utility model provides a double-seal guide structure, which belongs to the technical field of shock absorbers and comprises a guider, a guide sleeve, a guide sleeve and a guide sleeve. The sliding bearing is fixed at the bottom of the inner wall of the guider; the sealing mechanism is arranged on the guider and used for achieving the purpose that no leakage occurs when the guider operates, specifically, the sealing mechanism comprises an oil seal, a sealing ring and an O-shaped ring, the oil seal is fixed to the position, close to the top, of the inner wall of the guider, the sealing ring is fixed to the position, close to the center, of the inner wall of the guider, and the O-shaped ring is fixed to the position, close to the bottom, of the outer wall of the guider. The utility model solves the problems that the guider assembly and the piston rod in the magneto-rheological shock absorber are sealed by a single sealing ring, the sealing ring in the guider is easy to scratch due to the fact that magnetic current liquid in the shock absorber contains about 80% of iron powder, oil leakage of the shock absorber is caused, and the overall dustproof performance of the guider is poorer as the guider assembly and the piston rod in the magneto-rheological shock absorber are sealed by the single sealing ring.

Description

Technical Field

[0001] The utility model belongs to the technical field of shock absorbers, and in particular relates to a double-sealed guide structure. Background Art

[0002] Magnetorheological shock absorbers use electromagnetic reactions to respond to road conditions and driving environments in real time based on input information from sensors that monitor vehicle body and wheel motion. Magnetorheological fluid is a magnetic soft particle suspension. When the fluid is injected into the electromagnetic coil in the shock absorber piston, the magnetic field of the coil will change its rheological properties (or generate fluid resistance), thereby generating a damping force that is fast-responding and highly controllable without an electromechanical control valve and with a simple mechanical device. Magnetorheological shock absorbers have the characteristics of high adjustable damping force, easy computer variable damping real-time control, compact structure, and low external input energy, and are increasingly being highly valued by the engineering community. A single sealing ring is used to seal the guide assembly and the piston rod in the magnetorheological shock absorber. Since the magnetorheological fluid in the shock absorber contains about 80% iron powder, the sealing ring in the guide is easily scratched, causing the shock absorber to leak oil.

[0003] Application number "CN202022988479.8" records "a dual-guide contactless magnetorheological damper, comprising a cylinder, a piston rod is arranged in the cylinder, one end of the cylinder is open, one end of the piston rod extends out of the open end of the cylinder, an upper guide is fixedly arranged at the end of the open end of the cylinder, a lower guide is fixedly arranged inside the cylinder, a magnetorheological liquid area is between the lower guide and the upper guide, a magnetorheological liquid is arranged in the area, an electromagnetic coil is arranged at a section of the piston rod located in the magnetorheological liquid area, and the piston rod is slidably connected to the upper guide and the lower guide respectively."

[0004] The above patent is based on a dual-guided contactless magnetorheological shock absorber, which can effectively overcome the friction generated by the lateral force, thereby solving the problem of the shock absorber running smoothly and having a short service life due to excessive lateral force.

[0005] The above patent can effectively overcome the friction generated by the lateral force, thereby solving the problem of uneven operation and short service life of the shock absorber caused by excessive lateral force. However, a single sealing ring is used to seal the guide assembly and the piston rod in the magnetorheological shock absorber of the device. Since the magnetorheological fluid in the shock absorber contains about 80% iron powder, the sealing ring in the guide is easily scratched, resulting in oil leakage from the shock absorber, and the overall dustproof performance of the guide is poor. Utility Model Content

[0006] The purpose of the utility model is to provide a double-sealed guide structure, aiming to solve the problem that a single sealing ring is used to seal between the guide assembly and the piston rod in the magnetorheological shock absorber in the prior art, and since the magnetorheological fluid in the shock absorber contains about 80% iron powder, the sealing ring in the guide is easily scratched, resulting in oil leakage in the shock absorber, and the dustproof performance of the guide as a whole is poor.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A double-sealed guide structure, comprising:

[0009] Director;

[0010] It is characterized by further comprising:

[0011] A sliding bearing, fixed to the bottom of the inner wall of the guide;

[0012] A sealing mechanism, which is arranged on the guide and is used to ensure that the guide does not leak during operation;

[0013] The auxiliary mechanism is arranged on the guide and is used to assist in lifting the guide and effectively prevent dust from entering the interior of the guide when the guide is stored.

[0014] As a preferred solution of the utility model, the sealing mechanism includes an oil seal, a sealing ring and an O-ring, the oil seal is fixed to the top of the inner wall of the guide, the sealing ring is fixed to the center of the inner wall of the guide, and the O-ring is fixed to the bottom of the outer wall of the guide.

[0015] As a preferred solution of the utility model, the auxiliary mechanism includes a first dustproof pad and a second dustproof pad, the first dustproof pad is threadedly arranged on the top of the guide, and the second dustproof pad is threadedly arranged on the bottom of the guide.

[0016] As a preferred solution of the utility model, the bottom of the sliding bearing is evenly provided with 16 rivets in a circular array to prevent the sliding bearing from falling off.

[0017] As a preferred solution of the utility model, the installation sequence of the guide and the oil seal, the sealing ring and the sliding bearing is that the sealing ring and the oil seal are installed first and the O-ring is installed last.

[0018] As a preferred solution of the utility model, the sealing ring and the oil seal ensure that there is no leakage between the guide and the piston rod, and the O-ring ensures that there is no leakage between the guide and the oil storage cylinder.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. By fixing the oil seal at the top of the inner wall of the guide, the sealing ring at the center of the inner wall of the guide, and the O-ring at the bottom of the outer wall of the guide, the installation order of the guide, oil seal, sealing ring and sliding bearing is first the sealing ring and oil seal and finally the O-ring, which effectively improves the sealing performance of the guide, and the setting of the oil seal and sealing ring makes the guide double-sealed, thereby improving the subsequent work efficiency.

[0021] 2. By setting the first dustproof pad thread at the top of the guide and the second dustproof pad thread at the bottom of the guide, dust can be effectively prevented from entering the guide from both ends during the storage and placement of the guide, thereby improving the subsequent use effect of the guide. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a first-view stereoscopic diagram of a double-sealed guide structure of the utility model;

[0024] Figure 2 This is a first-angle perspective sectional view of a double-sealed guide structure of the utility model;

[0025] Figure 3 This is a first-person perspective exploded view of a double-sealed guide structure of the utility model;

[0026] Figure 4 This is a second perspective stereogram of a double-sealed guide structure of the utility model;

[0027] Figure 5 This is a second-angle three-dimensional exploded view of a double-sealed guide structure of the utility model.

[0028] In the figure: 1. Guide; 2. Oil seal; 3. Sealing ring; 4. Sliding bearing; 5. O-ring; 6. Riveting point; 7. First dustproof pad; 8. Second dustproof pad. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example

[0031] See also Figure 1-5 , the utility model provides the following technical solutions:

[0032] A double-sealed guide structure, which is composed of a guide 1, a sliding bearing 4, a sealing mechanism and an auxiliary mechanism, is specifically described as follows:

[0033] See also Figure 1 , guide 1;

[0034] See also Figure 2 , the sliding bearing 4 is fixed to the bottom of the inner wall of the guide 1;

[0035] See also Figure 3 The sealing mechanism is arranged on the guide 1, and is used to ensure that the guide 1 does not leak during operation. Specifically, the sealing mechanism includes an oil seal 2, a sealing ring 3 and an O-ring 5. The oil seal 2 is fixed to the top of the inner wall of the guide 1, the sealing ring 3 is fixed to the center of the inner wall of the guide 1, and the O-ring 5 is fixed to the bottom of the outer wall of the guide 1.

[0036] See also Figure 4 The auxiliary mechanism is arranged on the guide 1, which is used to assist in lifting the guide 1 and effectively prevent dust from entering the guide 1 when it is stored. Specifically, the auxiliary mechanism includes a first dustproof pad 7 and a second dustproof pad 8. The first dustproof pad 7 is threadedly arranged on the top of the guide 1, and the second dustproof pad 8 is threadedly arranged on the bottom of the guide 1;

[0037] See also Figure 5 , the bottom of the sliding bearing 4 is evenly provided with 16 rivets in a circumferential array, which is used to prevent the sliding bearing 4 from falling off;

[0038] See also Figure 3 , the installation order of the guide 1, the oil seal 2, the sealing ring 3 and the sliding bearing 4 is that the sealing ring 3 and the oil seal 2 are installed first and the O-ring 5 is installed last;

[0039] See also Figure 5 The sealing ring 3 and the oil seal 2 ensure that there is no leakage between the guide 1 and the piston rod, and the O-ring 5 ensures that there is no leakage between the guide 1 and the oil storage cylinder.

[0040] In this embodiment: by fixing the oil seal 2 to the top of the inner wall of the guide 1, fixing the sealing ring 3 to the center of the inner wall of the guide 1, and fixing the O-ring 5 to the bottom of the outer wall of the guide 1, the installation order of the guide 1, the oil seal 2, the sealing ring 3 and the sliding bearing 4 is first the sealing ring 3 and the oil seal 2 and finally the O-ring 5, which effectively improves the sealing performance of the guide 1, and the setting of the oil seal 2 and the sealing ring 3 makes the guide 1 double-sealed, thereby improving the subsequent work efficiency.

[0041] By threading the first dustproof pad 7 at the top of the guide 1 and the second dustproof pad 8 at the bottom of the guide 1, dust can be effectively prevented from entering the guide 1 from both ends during the storage and placement of the guide 1, thereby improving the subsequent use effect of the guide 1.

[0042] The working principle and use process of the utility model: the double-sealed guide structure is composed of a guide 1, an oil seal 2, a sealing ring 3, a sliding bearing 4, and an O-ring 5. After the sliding bearing 4 is pressed, 16 rivet points 6 are evenly arranged at the port of the sliding bearing 4 to prevent the sliding bearing 4 from falling off, and the installation steps are to install the sealing ring 3, the oil seal 2 and the O-ring 5 in sequence. The sealing ring 3 and the oil seal 2 ensure that there is no leakage between the guide 1 and the piston rod, and the O-ring 5 ensures that there is no leakage between the guide 1 and the oil storage cylinder. The arrangement of the first dustproof pad 7 and the second dustproof pad 8 can effectively perform dustproof operations when the guide 1 is stored and placed, thereby improving the subsequent use effect of the guide 1.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A double-sealed guide structure, comprising: Guide (1); It is characterized by further comprising: A sliding bearing (4) fixed to the bottom of the inner wall of the guide (1); A sealing mechanism, which is arranged on the guide (1) and is used to ensure that the guide (1) does not leak during operation; An auxiliary mechanism is arranged on the guide (1) and is used to assist in lifting the guide (1) and effectively prevent dust from entering the interior of the guide (1) when the guide (1) is stored.

2. A double-sealed guide structure according to claim 1, characterized in that: The sealing mechanism comprises an oil seal (2), a sealing ring (3) and an O-ring (5); the oil seal (2) is fixed to a position near the top of the inner wall of the guide (1); the sealing ring (3) is fixed to a position near the center of the inner wall of the guide (1); and the O-ring (5) is fixed to a position near the bottom of the outer wall of the guide (1).

3. A double-sealed guide structure according to claim 2, characterized in that: The auxiliary mechanism comprises a first dustproof pad (7) and a second dustproof pad (8), wherein the first dustproof pad (7) is threadedly arranged on the top of the guide (1), and the second dustproof pad (8) is threadedly arranged on the bottom of the guide (1).

4. A double-sealed guide structure according to claim 3, characterized in that: The bottom of the sliding bearing (4) is evenly provided with 16 rivet points in a circular array, which are used to prevent the sliding bearing (4) from falling off.

5. A double-sealed guide structure according to claim 4, characterized in that: The guide (1), the oil seal (2), the sealing ring (3) and the sliding bearing (4) are installed in the order of first installing the sealing ring (3) and the oil seal (2) and finally installing the O-ring (5).

6. A double-sealed guide structure according to claim 5, characterized in that: The sealing ring (3) and the oil seal (2) ensure that there is no leakage between the guide (1) and the piston rod, and the O-ring (5) ensures that there is no leakage between the guide (1) and the oil storage cylinder.

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