Guider for shock absorber

Abstract

The utility model discloses a guider for a shock absorber, which relates to the field of guiders and comprises a guider base, the top of the guider base is fixedly provided with a base outer ring, a groove is arranged between the top of the guider base and the inner wall of the base outer ring, and the top of the guider base is provided with a labyrinth groove; a labyrinth groove is formed in the base outer ring, a gasket is arranged on the upper surface of the labyrinth groove, an oil scraping ring sleeve is fixedly installed at the top of the gasket, an oil scraping ring seat is arranged in the base outer ring in a sleeved mode, and the oil scraping ring seat wraps the outer wall of the oil scraping ring sleeve; a piston rod penetrates through the interior of the oil scraper ring seat, and the tail end of the piston rod penetrates through the guider base. A first gap is formed between the bottom of the gasket and the top of the guider base; by arranging the oil scraping ring sleeve and the gasket, a large number of oil loops can be formed, the pressure relief function is achieved to a certain degree, meanwhile, lubrication is conducted, the labyrinth groove is formed, a small number of oil loops can be formed, and the shock absorber can work in a full-stroke mode and is not blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of a guide, in particular to a guide for a shock absorber. Background Technique

[0002] The guide is one of the important parts in the shock absorber. It mainly guides the piston rod slidingly installed in the working cylinder of the shock absorber to ensure the smoothness of the piston during operation, and conveys the excess shock absorber oil to the oil storage cylinder through the oil passage holes of a guide for a shock absorber during the piston movement, ensuring the connection between the working cylinder and the oil storage cylinder.

[0003] For example, the patent with the publication number CN206785915U discloses a guide for a shock absorber, which includes a guide seat. A central hole for the piston rod to pass through is provided on the guide seat. An annular shoulder is provided in the central hole. A sealing ring is provided on the annular shoulder. A main threaded hole aligned with the sealing ring is provided on the side wall of the guide seat. An adjusting bolt that abuts against the outer circumferential surface of the sealing ring is provided in the main threaded hole. A guide sleeve is inserted into the central hole. The guide sleeve presses against the end surface of the sealing ring. This guide for a shock absorber can make the sealing ring fit tightly with the piston rod and is not easily displaced or deformed. However, when this guide for a shock absorber is in use, there are still other deficiencies. When the guide encounters bumps, the shock absorber connected to the guide will be pressed to the bottom and jammed on the shock absorber. As a result, the shock absorber oil will be blocked by the oil scraping ring body and needs to wait for a long time to slowly fall back, with a slow falling speed. This easily causes insufficient oil supply speed in a short time, and thus the shock absorber will show a jamming phenomenon. Therefore, when using this device, there are still certain deficiencies. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a guide for a shock absorber to solve the problem that when a guide for a shock absorber on the current market is in use, when the guide encounters bumps, the shock absorber connected to the guide will be pressed to the bottom and jammed on the shock absorber. As a result, the shock absorber oil will be blocked by the oil scraping ring body and needs to wait for a long time to slowly fall back, with a slow falling speed. This easily causes insufficient oil supply speed in a short time, and thus the shock absorber will show a jamming phenomenon as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A guide for a shock absorber includes a guide base. A base outer ring is fixedly installed on the top of the guide base. A groove is formed between the top of the guide base and the inner wall of the base outer ring. A labyrinth groove is formed on the top of the guide base.

[0006] It further includes: a gasket is disposed on the upper surface of the labyrinth groove, an oil scraping ring sleeve is fixedly installed at the top of the gasket, an oil scraping ring seat is sleeved inside the outer ring of the base, and the oil scraping ring seat wraps the outer wall of the oil scraping ring sleeve;

[0007] A piston rod penetrates through the inside of the oil scraping ring seat, and the end of the piston rod passes through the guide base.

[0008] As a preferred technical solution of the present application, a first gap is provided between the bottom of the gasket and the top of the guide base, and a second gap is provided between the outer wall of the oil scraping ring seat and the inner wall of the outer ring of the base.

[0009] As a preferred technical solution of the present application, three first diversion grooves are provided on the inner wall of the guide base, a second diversion groove is provided on the inner wall on the right side of the guide base, an oil inlet groove is provided on the left side of the labyrinth groove, and an oil outlet groove is provided on the right side of the labyrinth groove, and the oil outlet groove is located above the second diversion groove.

[0010] As a preferred technical solution of the present application, the first gap is communicated with the labyrinth groove, and the labyrinth groove is arranged in an irregular structure.

[0011] As a preferred technical solution of the present application, the labyrinth groove is integrally provided with the oil inlet groove and the oil outlet groove, and the oil outlet groove is communicated with the second diversion groove.

[0012] As a preferred technical solution of the present application, the second gap is communicated with the groove and the second diversion groove, and the gasket is movably connected to the groove.

[0013] As a preferred technical solution of the present application, the oil scraping ring sleeve is closely attached to the gasket and the piston rod, and the oil scraping ring sleeve is movably connected to the outer ring of the base.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] For the guide of the shock absorber, by providing the oil scraping ring sleeve and the gasket, a large number of oil circuits can be formed, which can play a role in pressure relief to a certain extent while lubricating, and by providing the labyrinth groove, a small amount of oil circuit can be formed, enabling the shock absorber to work throughout the stroke without jamming. The specific content is as follows:

[0016] 1. By providing the oil scraping ring sleeve and the gasket, through the mutual cooperation of the piston rod, the oil scraping ring sleeve, the gasket, the outer ring of the base, the groove, the first gap and the first diversion groove, a large number of oil circuits are formed, which can play a role in pressure relief to a certain extent while lubricating;

[0017] Further, a first gap is provided. The oil film formed between the piston rod and the guide base by the oil can prevent oil leakage to a certain extent and maintain the internal pressure stability of the shock absorber.

[0018] 2. A labyrinth groove is provided. The oil flows through the inside of the labyrinth groove and then through the oil outlet groove and the second diversion groove to the space between the piston rod and the guide base, thus forming a small oil circuit, enabling the shock absorber to work throughout its stroke without jamming.

[0019] Further, a second gap is provided. When the gasket connected to the oil scraping ring sleeve driven by the piston rod moves downward and is pushed to the bottom inside the outer ring of the base, the oil scraping ring sleeve is separated from the outer ring of the base, and the shock absorber oil enters the labyrinth groove through the second gap and the oil inlet groove. Description of the Drawings

[0020] Figure 1 is the front view structural schematic diagram of the present utility model;

[0021] Figure 2 is the partial top view structural schematic diagram of the guide base of the present utility model;

[0022] Figure 3 is the partial bottom view structural schematic diagram of the guide base of the present utility model;

[0023] Figure 4 is the sectional structural schematic diagram of the separation of the outer ring of the base and the oil scraping ring sleeve of the present utility model;

[0024] Figure 5 is the sectional structural schematic diagram of the fitting of the outer ring of the base and the oil scraping ring sleeve of the present utility model;

[0025] Figure 6 is the partial structural schematic diagram of the oil scraping ring sleeve and the piston rod of the present utility model;

[0026] Figure 7 For the present utility model Figure 1 the enlarged structural schematic diagram at A in.

[0027] In the figure: 1. Guide base; 2. Outer ring of the base; 3. Groove; 4. Labyrinth groove; 5. Gasket; 6. First gap; 7. Oil scraping ring sleeve; 8. Oil scraping ring seat; 9. Second gap; 10. Piston rod; 11. Oil inlet groove; 12. Oil outlet groove; 13. First diversion groove; 14. Second diversion groove. Detailed Embodiment

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1 - 7 , the present utility model provides the following technical solutions:

[0030] Embodiment 1: In order to solve the problem that when a guide for a shock absorber in the market is in use, when the guide encounters bumps, the shock absorber connected to the guide will be pressed to the bottom and jammed on the shock absorber, so that the shock absorber oil will be blocked by the oil scraping ring body and needs to wait for a long time to slowly fall back, and the falling speed is slow, which is likely to cause insufficient oil supply speed in a short time, resulting in the problem of jamming of the shock absorber. Refer to the attached Figure 1 - attached Figure 7 , which includes a guide base 1. A base outer ring 2 is fixedly installed on the top of the guide base 1. A groove 3 is formed between the top of the guide base 1 and the inner wall of the base outer ring 2. A labyrinth groove 4 is formed on the top of the guide base 1; a gasket 5 is arranged on the upper surface of the labyrinth groove 4. An oil scraping ring sleeve 7 is fixedly installed on the top of the gasket 5. An oil scraping ring seat 8 is sleeved inside the base outer ring 2, and the oil scraping ring seat 8 wraps the outer wall of the oil scraping ring sleeve 7; a piston rod 10 penetrates through the inside of the oil scraping ring seat 8, and the end of the piston rod 10 passes through the guide base 1. A first gap 6 is provided between the bottom of the gasket 5 and the top of the guide base 1. Three first diversion grooves 13 are formed on the inner wall of the guide base 1. The second gap 9 is communicated with the groove 3 and the second diversion groove 14, and the gasket 5 is movably connected with the groove 3. The oil scraping ring sleeve 7 is closely attached to the gasket 5 and the piston rod 10, and the oil scraping ring sleeve 7 is movably connected with the base outer ring 2.

[0031] During the reciprocating upward movement of the piston rod 10 connected to the shock absorber in the guide base 1, the piston rod 10 drives the gasket 5 connected to the oil scraping ring sleeve 7 to move upward in the base outer ring 2, so that the oil scraping ring sleeve 7 fits on the inner top wall of the base outer ring 2, and the gasket 5 is separated from the groove 3 formed in the guide base 1. Thus, the shock absorber oil enters the groove 3 through the first gap 6 and flows to the space between the piston rod 10 and the guide base 1 through the corresponding first diversion grooves 13, thereby forming a large number of oil circuits, playing a role in pressure relief to a certain extent while lubricating, and the oil film formed between the piston rod 10 and the guide base 1 can prevent oil leakage to a certain extent and maintain the internal pressure stability of the shock absorber.

[0032] Embodiment 2: A small oil circuit can be formed, enabling the shock absorber to work throughout its entire stroke without jamming. Reference can be made to the appendix Figure 1 - appendix Figure 5 and appendix Figure 7 , a second gap 9 is provided between the outer wall of the oil scraping ring seat 8 and the inner wall of the outer ring of the base 2. A second diversion groove 14 is formed in the inner wall on the right side of the guide base 1. An oil inlet slot 11 is provided on the left side of the labyrinth groove 4, and an oil outlet slot 12 is provided on the right side of the labyrinth groove 4, and the oil outlet slot 12 is located above the second diversion groove 14. The labyrinth groove 4 is integrally provided with the oil inlet slot 11 and the oil outlet slot 12, and the oil outlet slot 12 is communicated with the second diversion groove 14. The first gap 6 is communicated with the labyrinth groove 4, and the labyrinth groove 4 is set to an irregular structure.

[0033] During the reciprocating downward movement of the piston rod 10 connected to the shock absorber within the guide base 1, when the piston rod 10 drives the gasket 5 connected to the oil scraping ring sleeve 7 to move downward within the outer ring of the base 2 and is pushed to the bottom, the oil scraping ring sleeve 7 is separated from the outer ring of the base 2, and the gasket 5 fits on the guide base 1. Thus, the shock absorber oil enters the labyrinth groove 4 through the second gap 9 via the oil inlet slot 11. The oil fluid flows through the interior of the labyrinth groove 4, passes through the oil outlet slot 12 and the second diversion groove 14, and reaches between the piston rod 10 and the guide base 1, thereby forming a small oil circuit, enabling the shock absorber to work throughout its entire stroke without jamming.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A guide for a vibration damper, comprising a guide base (1), a base outer ring (2) being fixedly mounted on the top of the guide base (1), a groove (3) being provided between the top of the guide base (1) and the inner wall of the base outer ring (2), and a labyrinth groove (4) being provided on the top of the guide base (1); It is characterized in that Also includes: A gasket (5) is provided on the upper surface of the labyrinth groove (4), an oil scraper ring sleeve (7) is fixedly installed on the top of the gasket (5), an oil scraper ring seat (8) is sleeved inside the outer ring (2) of the base, and the oil scraper ring seat (8) is wrapped around the outer wall of the oil scraper ring sleeve (7); A piston rod (10) passes through the interior of the oil scraper ring seat (8), and the end of the piston rod (10) passes through the guide base (1).

2. A guide for a vibration damper according to claim 1, characterized in that: A first gap (6) is provided between the bottom of the gasket (5) and the top of the guide base (1), and a second gap (9) is provided between the outer wall of the oil scraper ring seat (8) and the inner wall of the base outer ring (2).

3. The guide for a vibration damper according to claim 1, characterized in that: The inner wall of the guide base (1) is provided with three first guide grooves (13), the inner wall on the right side of the guide base (1) is provided with a second guide groove (14), the left side of the labyrinth groove (4) is provided with an oil inlet slot (11), the right side of the labyrinth groove (4) is provided with an oil outlet slot (12), and the oil outlet slot (12) is located above the second guide groove (14).

4. A guide for a vibration damper according to claim 2, characterized in that: The first gap (6) and the labyrinth groove (4) are arranged to communicate with each other, and the labyrinth groove (4) is arranged to have an irregular structure.

5. The guide for a vibration damper according to claim 3, characterized in that: The labyrinth groove (4) is integrated with the oil inlet groove (11) and the oil outlet groove (12), and the oil outlet groove (12) is communicated with the second guide groove (14).

6. A guide for a vibration absorber according to claim 2, characterized in that: The second gap (9) is communicated with the groove (3) and the second guide groove (14), and the gasket (5) and the groove (3) are movably connected.

7. The guide for a vibration absorber according to claim 1, characterized in that: The oil scraper ring sleeve (7) is tightly fitted with the gasket (5) and the piston rod (10), and the oil scraper ring sleeve (7) is movably connected to the outer ring of the base (2).

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