High-durability guider for automobile shock absorber

Abstract

The utility model relates to the technical field of automobile shock absorbers, in particular to a high-durability guider for an automobile shock absorber, which comprises a guider body, a through hole is arranged in the center of the lower portion of the guider body, the guider body is mounted on a piston rod through the through hole, and the guider body is integrally circular. A step end face is further arranged on the periphery of the guider body. A lining is arranged on the outer side of the through hole, and an oil scraping ring is arranged above the through hole. An oil seal groove is formed in the guider body, and an insertion ring is arranged between the oil seal groove and the oil scraper ring; the upper end and the lower end of the guider body are further provided with an oil return hole and a vibration reduction base respectively. The shock absorber is stable in internal structure and safe and reliable to use, reduces abrasion, improves the shock absorption effect, enables internal oil to be discharged in time, prolongs the service life, and has good practicability in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile shock absorbers, in particular to a guide for automobile shock absorbers with high durability. Background Art

[0002] As a damping element in automobile parts, automobile shock absorber is an important part of automobile suspension system, which plays a decisive role in the smoothness, comfort, safety, steering operability and passability of vehicle driving; guide is one of the important parts in automobile shock absorber, which guides the movement of piston rod in shock absorber to ensure the smoothness of movement; according to the search, the utility model patent with application date of 2014-07-03 and application number of CN201420363902.7 discloses a high-durability guide for automobile shock absorber, including a guide body, wherein the guide body is integrally formed with oil seal end face, A large diameter side wall, a small diameter side wall, a step end face, a side wall groove, and an oil groove. The large diameter side wall includes a straight wall section and an inclined wall section. The lower end of the side wall groove is located at the inclined wall section of the large diameter side wall, and the upper end is located at the straight wall section of the large diameter side wall. Although such a guide for a car shock absorber can realize the guiding effect on the piston rod in the shock absorber, there are still some shortcomings: an oil groove is provided on the guide body. After long-term use, some oil will remain on the surface of the piston rod, resulting in an increase in the oil seal pressure, and the oil seal in the guide is prone to bursting due to instantaneous pressure; at the same time, the direct contact between the piston rod and the guide body increases wear, thereby shortening the service life of the guide. Utility Model Content

[0003] In order to overcome the above-mentioned defects, the utility model provides a highly durable guide for an automobile shock absorber. The utility model has a stable internal structure, is safe and reliable to use, reduces wear, improves the vibration reduction effect, and the internal oil can be discharged in time, thereby extending the service life and having good practicality during use.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a highly durable guide for an automobile shock absorber, comprising a guide body, a through hole is arranged at the center of the lower part of the guide body, the guide body is installed on the piston rod through the through hole, the guide body is arranged in a circular shape as a whole, and a step end surface is also arranged on the outer periphery of the guide body; a bushing is arranged on the outer side of the through hole, and an oil scraper ring is arranged above the through hole; an oil seal groove is arranged in the guide body, and an insert ring is arranged between the oil seal groove and the oil scraper ring; the upper end and the lower end of the guide body are also respectively provided with an oil return hole and a vibration damping base.

[0005] When the utility model is working, the guide body is sleeved on the piston rod and meshes with the liner sleeve in the through hole to reduce friction with the piston rod; an inclined wall end face is provided at the lower end of the guide body, which is convenient for installation and clamping into the inner side of the cylinder sleeve; when the piston rod and the shock absorber reciprocate up and down, the scraper ring collects excess oil into the oil discharge device, and discharges it through the oil drain hole at the outer end of the oil discharge device, thereby increasing the service life; a vibration reduction base is provided at the lower end of the guide body, which can effectively reduce vibration and improve the comfort of movement; when mechanical parts need lubrication, oil can be injected through the oil return hole on the guide body, so that the equipment runs more smoothly; the oil seal groove in the guide body can be sealed with oil to avoid oil leakage at will; an installation groove is provided on the plug ring between the oil seal groove and the scraper ring, which can be fixed and clamped, thereby ensuring the stability of the internal structure of the guide.

[0006] The beneficial effects of the utility model are: a highly durable guide for automobile shock absorbers, the utility model has a stable internal structure, is safe and reliable to use, reduces wear, improves the vibration reduction effect, the internal oil can be discharged in time, the service life is extended, and it has good practicality during use.

[0007] As a further improvement of the utility model, in order to ensure that the internal oil can be discharged in time and extend the service life; an oil discharge device is provided on the outer side of the oil scraper ring, and an oil drain hole is also provided on the oil discharge device; the oil drain hole is inclined downward, and the inclination angle is 45° to 55°.

[0008] As a further improvement of the utility model, in order to avoid direct contact between the piston rod and the guide body, reduce wear and ensure sufficient oil scraping; the oil scraper ring is arranged above the through hole, and a bushing is arranged on the outside of the through hole; the diameter of the inner side of the oil scraper ring is consistent with the diameter of the inner side of the bushing.

[0009] As a further improvement of the present invention, in order to avoid the internal components of the guide from rotating due to the movement of the piston rod and to ensure the stability of the internal structure of the guide, the insert ring is also provided with a plurality of mounting grooves.

[0010] As a further improvement of the utility model, in order to adjust the flow of oil, maintain appropriate damping force, and reduce impact and vibration; the oil return holes at the upper end of the guide body are evenly arranged along the center of the guide body, and the oil return holes are arranged in a plurality.

[0011] As a further improvement of the present invention, in order to ensure the clamping connection between the lower end of the guide body and other components of the shock absorber, the lower end of the guide body is provided with an inclined wall end surface, which is inclined toward the inner side of the guide body.

[0012] As a further improvement of the utility model, in order to avoid deformation caused by pressing the bushing into the through hole, the lower end of the through hole is also provided with an arc end surface that smoothly transitions to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings:

[0014] Figure 1 It is a cross-sectional view of the utility model.

[0015] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle.

[0016] Figure 3 It is a three-dimensional diagram of the utility model.

[0017] Among them, 1 is the guide body, 2 is the oil return hole, 3 is the insert ring, 4 is the oil scraper ring, 5 is the mounting groove, 6 is the oil seal groove, 7 is the step end face, 8 is the bushing, 9 is the through hole, 10 is the vibration damping base, 11 is the oil discharge device, 12 is the inclined wall end face, 13 is the arc end face, and 14 is the oil drain hole. DETAILED DESCRIPTION

[0018] like Figure 1-3 As shown, in order to achieve the above-mentioned purpose, the utility model provides a high-durability guide for automobile shock absorber, including a guide body 1, a through hole 9 is provided at the center of the lower part of the guide body 1, and the guide body 1 is installed on the piston rod through the through hole 9. The guide body 1 is arranged in a circular shape as a whole, and a step end surface 7 is also provided on the outer periphery of the guide body 1; a bushing 8 is provided on the outer side of the through hole 9, and an oil scraper ring 4 is provided above the through hole 9; an oil seal groove 6 is provided in the guide body 1, and an insert ring 3 is provided between the oil seal groove 6 and the oil scraper ring 4; the upper and lower ends of the guide body 1 are also provided with an oil return hole 2 and a vibration damping base 10 respectively; the outer side of the oil scraper ring (4) is provided with an oil discharge device 11 The oil discharge device 11 is also provided with an oil drain hole 14; the oil drain hole 14 is inclined downward, and the inclination angle is 45° to 55°; the oil scraper ring 4 is arranged above the through hole 9, and a bushing 8 is arranged on the outside of the through hole 9; the inner diameter of the oil scraper ring 4 is consistent with the inner diameter of the bushing 8; the insert ring 3 is also provided with a mounting groove 5, and a plurality of mounting grooves 5 are provided; the oil return holes 2 at the upper end of the guide body 1 are evenly arranged along the center of the guide body 1, and a plurality of oil return holes 2 are provided; the lower end of the guide body 1 is provided with an inclined wall end face 12, and the inclined wall end face 12 is inclined toward the inner side of the guide body 1; the lower end of the through hole 9 is also provided with an arc end face 13 that smoothly transitions to the outside.

[0019] When the utility model is working, the guide body 1 is sleeved on the piston rod and meshes with the liner 8 in the through hole 9 to reduce friction with the piston rod; the lower end of the guide body 1 is provided with an inclined wall end face 12, which is convenient for installation and clamping into the inner side of the cylinder sleeve; when the piston rod and the shock absorber reciprocate up and down, the scraper ring 4 collects excess oil into the oil discharge device 11, and discharges it through the oil drain hole 14 at the outer end of the oil discharge device 11, thereby improving the service life; the lower end of the guide body 1 is provided with a vibration reduction base 10, which can effectively reduce vibration and improve the comfort of movement; when the mechanical parts need lubrication, oil can be injected through the oil return hole 2 on the guide body 1 to make the equipment run more smoothly; the oil seal groove 6 in the guide body 1 can be sealed with oil to prevent oil from leaking at will; the insert ring 3 between the oil seal groove 6 and the scraper ring 4 is provided with an installation groove 5, which can be fixed and clamped to ensure the stability of the internal structure of the guide.

[0020] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A highly durable guide for an automobile shock absorber, comprising a guide body (1), a through hole (9) being provided at the center of the lower portion of the guide body (1), the guide body (1) being mounted on a piston rod through the through hole (9), characterized in that: The guide body (1) is arranged in a circular shape as a whole, and a stepped end surface (7) is also arranged on the outer periphery of the guide body (1); a bushing (8) is arranged on the outer side of the through hole (9), and an oil scraper ring (4) is arranged above the through hole (9); an oil seal groove (6) is arranged in the guide body (1), and an insert ring (3) is arranged between the oil seal groove (6) and the oil scraper ring (4); and an oil return hole (2) and a vibration damping base (10) are also respectively arranged at the upper end and the lower end of the guide body (1).

2. The highly durable guide for automobile shock absorber according to claim 1, characterized in that: An oil drain device (11) is provided on the outer side of the oil scraper ring (4), and an oil drain hole (14) is also provided on the oil drain device (11); the oil drain hole (14) is inclined downward, and the inclination angle is 45° to 55°.

3. The highly durable guide for automobile shock absorber according to claim 1, characterized in that: The oil scraper ring (4) is arranged above the through hole (9), and a bushing (8) is arranged outside the through hole (9); the diameter of the inner side of the oil scraper ring (4) is consistent with the diameter of the inner side of the bushing (8).

4. The highly durable guide for automobile shock absorber according to claim 1, characterized in that: The insert ring (3) is also provided with a mounting groove (5), and a plurality of mounting grooves (5) are provided.

5. The highly durable guide for automobile shock absorber according to claim 1, characterized in that: The oil return holes (2) at the upper end of the guide body (1) are evenly arranged along the center of the guide body (1), and a plurality of the oil return holes (2) are arranged.

6. The highly durable guide for automobile shock absorber according to claim 1, characterized in that: The lower end of the guide body (1) is provided with an inclined wall end surface (12), and the inclined wall end surface (12) is inclined towards the inner side of the guide body (1).

7. The highly durable guide for automobile shock absorber according to claim 1, characterized in that: The lower end of the through hole (9) is also provided with an arc end surface (13) that smoothly transitions to the outside.

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