Dustproof motorcycle shock absorber

Abstract

The utility model relates to the technical field of shock absorbers, and provides a dustproof motorcycle shock absorber which comprises a shock absorption oil cylinder, a piston rod and a dustproof mechanism. According to the dustproof motorcycle shock absorber, through arrangement of a connecting sleeve and a first fastening ring and a second fastening ring on a fixing ring, the two ends of a sleeve are fixed to the shock absorption oil cylinder and the piston rod in a sealed mode respectively; the sealing ring in the connecting sleeve corresponds to the sealing groove in the damping oil cylinder, sealing of the connecting position of the damping oil cylinder and the piston rod is enhanced, and the dust removal ring is arranged, so that when the piston rod stretches out and draws back in the damping oil cylinder, dust on the surface of the piston rod is scraped away through the dust removal ring; by means of the technical scheme, the problems that in the prior art, dust is inconvenient to discharge in time, and dust is likely to be brought into the cylinder body when the piston rod repeatedly enters and exits the cylinder body are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, and in particular to a dustproof motorcycle shock absorber. Background Art

[0002] Shock absorbers are used to cushion the impact of vehicles during driving to ensure that the vehicle can run smoothly and stably. Many vehicles in life are equipped with shock absorbers, and motorcycles are one of them. Motorcycle shock absorbers may have some problems in daily use. The most common one is oil leakage. When the shock absorber leaks oil, its function is usually greatly affected. There are many reasons for shock absorber oil leakage. One of them is that dust enters the shock absorber during use. After the dust enters the shock absorber, it will damage the oil seal of the shock absorber, which will cause the shock absorber to leak oil.

[0003] A patent with patent number CN219282310U discloses a dustproof motorcycle shock absorber, including a cylinder and a piston rod slidably connected in the cylinder, a dustproof part detachably connected to the cylinder and sleeved on the outside of the piston rod, and a dustproof gap is provided between the dustproof part and the piston rod for extending the path of impurities to the top end of the piston rod.

[0004] However, the dust-proof motorcycle shock absorber in the above patent still has certain problems during use. The method of only scraping off the dust on the surface of the piston rod by the first dust-proof ring block and the second dust-proof ring block is not convenient for timely discharge of dust. It is easy for the piston rod to bring dust into the cylinder when repeatedly entering and exiting the cylinder, which is not conducive to the use of the shock absorber. Therefore, a dust-proof motorcycle shock absorber is proposed. Utility Model Content

[0005] The utility model provides a dustproof motorcycle shock absorber, which solves the problem in the related art that dust is difficult to be discharged in time and dust is easily brought into the cylinder when the piston rod repeatedly enters and exits the cylinder, which is not conducive to the use of the shock absorber.

[0006] The technical solution of the utility model is as follows:

[0007] A dustproof motorcycle shock absorber comprises a shock absorbing oil cylinder and a piston rod, one end of the piston rod is arranged inside the shock absorbing oil cylinder and is slidably connected to the shock absorbing oil cylinder, and further comprises:

[0008] A dustproof mechanism, the dustproof mechanism includes a sleeve and a mounting assembly, the sleeve is sleeved on the outer side of the piston rod near the top end of the shock absorber oil cylinder, the sleeve is configured as a dustproof sleeve that is folded and telescopic in layers, the top end of the sleeve is detachably connected to the piston rod through a connecting assembly, the mounting assembly includes a connecting sleeve and a through hole, the connecting sleeve is sleeved on the top end of the shock absorber oil cylinder, the inner side of the bottom end of the connecting sleeve is fitted with the outer wall of the shock absorber oil cylinder, the top end of the connecting sleeve is fixedly connected to the bottom end of the sleeve, the connecting sleeve is connected to the inside of the sleeve through a through hole opened at the top, and the diameter of the through hole is larger than the diameter of the piston rod.

[0009] Preferably, the connecting assembly includes a fixing ring and a second fastening ring, the fixing ring is fixedly connected to the top of the sleeve, and the inner wall is in contact with the outer side of the piston rod, the second fastening ring is sleeved on the outer side of the fixing ring, the two ends of the opening of the second fastening ring are removably connected by bolts, and the top of the fixing ring is set as an annular slope surface.

[0010] Preferably, a dust removal ring is provided at the connection between the top of the connecting sleeve and the sleeve, the bottom of the dust removal ring is fixedly connected to the sleeve and the connecting sleeve, the dust removal ring is sleeved on the outside of the piston rod, the dust removal ring is arranged in a truncated cone shape, and the top diameter of the dust removal ring is consistent with the diameter of the piston rod.

[0011] Preferably, a sealing ring is fixedly connected to the inner side of the bottom of the connecting sleeve, and a sealing groove corresponding to the sealing ring is opened on the top of the shock-absorbing oil cylinder.

[0012] Preferably, a first fastening ring is sleeved on the outer ring of the bottom of the connecting sleeve, and the two ends of the opening of the first fastening ring are detachably connected by bolts.

[0013] Preferably, a layer of dustproof cloth is fixedly bonded to the outer side of the sleeve.

[0014] The working principle and beneficial effects of the utility model are:

[0015] 1. In the utility model, by arranging the first fastening ring and the second fastening ring on the connecting sleeve and the fixing ring, the two ends of the sleeve are respectively sealed and fixed with the shock absorber oil cylinder and the piston rod, and then the sealing ring inside the connecting sleeve corresponds to the sealing groove on the shock absorber oil cylinder, so as to strengthen the sealing of the connection between the shock absorber oil cylinder and the piston rod. Then, by arranging the dust removing ring, when the piston rod is extended and retracted inside the shock absorber oil cylinder, the dust removing ring first scrapes off a small amount of dust that enters the inside of the sleeve through the fixing ring and adheres to the surface of the piston rod, so as to prevent the dust from entering the shock absorber oil inside the shock absorber oil cylinder through the piston rod. The dust scraped off by the dust removing ring falls to the connection between the sleeve and the connecting sleeve through gravity and the slope of the dust removing ring surface, so as to avoid contacting the surface of the piston rod again. The purpose of comprehensively preventing dust from entering the inside of the shock absorber oil cylinder through the piston rod and the connection between the shock absorber oil cylinder and the piston rod is achieved by arranging the dust preventing mechanism, the dust removing ring, the sealing ring and the connecting assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is the front view of the utility model;

[0019] Figure 3 This is a schematic diagram of the partial split structure of the utility model;

[0020] Figure 4 It is a partial cross-sectional view of the utility model;

[0021] In the figure: 1. shock absorber oil cylinder; 2. piston rod; 3. dustproof mechanism; 4. sleeve; 5. connecting sleeve; 6. through hole; 7. first fastening ring; 8. dust removal ring; 9. sealing ring; 10. sealing groove; 11. fixing ring; 12. second fastening ring. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions 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 of 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.

[0023] Example 1

[0024] like Figure 1~Figure 4 As shown, this embodiment provides a dustproof motorcycle shock absorber, including a shock absorber oil cylinder 1 and a piston rod 2, one end of the piston rod 2 is arranged inside the shock absorber oil cylinder 1 and is slidably connected to the shock absorber oil cylinder 1, and also includes:

[0025] The dustproof mechanism 3 includes a sleeve 4 and an installation assembly. The sleeve 4 is sleeved on the outer side of the piston rod 2 near the top of the shock absorber oil cylinder 1. The sleeve 4 is configured as a dustproof sleeve that is folded and telescopic in layers. The top of the sleeve 4 is detachably connected to the piston rod 2 through a connecting assembly. The installation assembly includes a connecting sleeve 5 and a through hole 6. The connecting sleeve 5 is sleeved on the top of the shock absorber oil cylinder 1. The inner side of the bottom of the connecting sleeve 5 is in contact with the outer wall of the shock absorber oil cylinder 1. The top of the connecting sleeve 5 is fixedly connected to the bottom of the sleeve 4. The connecting sleeve 5 is connected to the inside of the sleeve 4 through the through hole 6 opened at the top. The diameter of the through hole 6 is larger than the diameter of the piston rod 2.

[0026] Preferably, the connection assembly includes a fixing ring 11 and a second fastening ring 12. The fixing ring 11 is fixedly connected to the top of the sleeve 4, and the inner wall is in contact with the outer side of the piston rod 2. The second fastening ring 12 is sleeved on the outer side of the fixing ring 11. The two ends of the opening of the second fastening ring 12 are detachably connected by bolts, and the top of the fixing ring 11 is set as an annular slope surface. The purpose of this setting is to achieve the purpose of fastening and sealing the fixing ring 11 and the piston rod 2 through the second fastening ring 12, and to reduce the dust accumulation at the fixing ring 11 through the setting of the slope surface at the top of the fixing ring 11.

[0027] Preferably, a dust removal ring 8 is provided at the connection between the top of the connecting sleeve 5 and the sleeve 4, the bottom of the dust removal ring 8 is fixedly connected to the sleeve 4 and the connecting sleeve 5, the dust removal ring 8 is sleeved on the outside of the piston rod 2, the dust removal ring 8 is arranged in a truncated cone shape, and the top diameter of the dust removal ring 8 is consistent with the diameter of the piston rod 2. The purpose of this arrangement is to achieve the purpose of scraping off the dust attached to the surface of the piston rod 2 through the arrangement of the dust removal ring 8.

[0028] Preferably, a sealing ring 9 is fixedly connected to the inner side of the bottom of the connecting sleeve 5, and a sealing groove 10 corresponding to the sealing ring 9 is opened on the top of the shock absorber oil cylinder 1. The purpose of this arrangement is to achieve the purpose of strengthening the sealing performance of the connecting sleeve 5 and the shock absorber oil cylinder 1 by making the sealing ring 9 correspond to the sealing groove 10.

[0029] Preferably, the bottom outer ring of the connecting sleeve 5 is sleeved with a first fastening ring 7, and the two ends of the opening of the first fastening ring 7 are detachably connected by bolts. The purpose of this arrangement is to achieve the purpose of strengthening the connection stability between the connecting sleeve 5 and the shock absorber oil cylinder 1 through the first fastening ring 7.

[0030] In this embodiment, by setting the first fastening ring 7 and the second fastening ring 12 on the connecting sleeve 5 and the fixing ring 11, the two ends of the sleeve 4 are sealed and fixed to the shock absorber oil cylinder 1 and the piston rod 2 respectively, and then the sealing ring 9 inside the connecting sleeve 5 corresponds to the sealing groove 10 on the shock absorber oil cylinder 1, so as to strengthen the sealing of the connection between the shock absorber oil cylinder 1 and the piston rod 2. Then, by setting the dust removal ring 8, when the piston rod 2 is extended and retracted inside the shock absorber oil cylinder 1, the dust removal ring 8 first passes a small amount of the fixed ring 11 into the sleeve 4, and then closes the piston rod 2. The dust attached to the surface of the piston rod 2 is scraped off to prevent the dust from entering the shock absorber oil inside the shock absorber oil cylinder 1 through the piston rod 2. The dust scraped off by the dust removal ring 8 falls to the connection between the sleeve 4 and the connecting sleeve 5 through gravity and the slope of the dust removal ring 8 to gather and avoid contact with the surface of the piston rod 2 again. The dust prevention mechanism 3, the dust removal ring 8, the sealing ring 9 and the connection assembly are set to achieve the purpose of comprehensively preventing dust from entering the shock absorber oil cylinder 1 through the piston rod 2 and the connection between the shock absorber oil cylinder 1 and the piston rod 2.

[0031] Example 2

[0032] like Figure 1~Figure 4 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a layer of dustproof cloth is fixedly bonded to the outer side of the sleeve 4.

[0033] In this embodiment, a layer of dustproof cloth is fixedly bonded to the outside of the sleeve 4, so as to increase the strength and wear resistance of the sleeve 4 and extend the service life of the sleeve 4.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dustproof motorcycle shock absorber, comprising a shock absorbing oil cylinder (1) and a piston rod (2), wherein one end of the piston rod (2) is arranged inside the shock absorbing oil cylinder (1) and is slidably connected to the shock absorbing oil cylinder (1), characterized in that: Also includes: A dustproof mechanism (3), the dustproof mechanism (3) comprising a sleeve (4) and a mounting assembly, the sleeve (4) being sleeved on the outer side of the piston rod (2) near the top end of the shock absorber oil cylinder (1), the sleeve (4) being configured as a dustproof sleeve that can be folded and retracted in layers, the top end of the sleeve (4) being detachably connected to the piston rod (2) via a connecting assembly, the mounting assembly comprising a connecting sleeve (5) and a through hole (6), the connecting sleeve (5) being sleeved on the top end of the shock absorber oil cylinder (1), the inner side of the bottom end of the connecting sleeve (5) being in contact with the outer wall of the shock absorber oil cylinder (1), the top end of the connecting sleeve (5) being fixedly connected to the bottom end of the sleeve (4), the connecting sleeve (5) being connected to the inside of the sleeve (4) via the through hole (6) opened at the top end, the diameter of the through hole (6) being larger than the diameter of the piston rod (2).

2. The dustproof motorcycle shock absorber according to claim 1, characterized in that: The connection assembly comprises a fixing ring (11) and a second fastening ring (12); the fixing ring (11) is fixedly connected to the top of the sleeve (4), and the inner wall thereof is in contact with the outer side of the piston rod (2); the second fastening ring (12) is sleeved on the outer side of the fixing ring (11); the two ends of the opening of the second fastening ring (12) are detachably connected by bolts; and the top of the fixing ring (11) is arranged as an annular slope surface.

3. The dustproof motorcycle shock absorber according to claim 1, characterized in that: A dust removal ring (8) is provided at the connection point between the top of the connecting sleeve (5) and the sleeve (4); the bottom of the dust removal ring (8) is fixedly connected to the sleeve (4) and the connecting sleeve (5); the dust removal ring (8) is sleeved on the outside of the piston rod (2); the dust removal ring (8) is arranged in a truncated cone shape, and the diameter of the top of the dust removal ring (8) is consistent with the diameter of the piston rod (2).

4. The dustproof motorcycle shock absorber according to claim 1, characterized in that: A sealing ring (9) is fixedly connected to the inner side of the bottom of the connecting sleeve (5), and a sealing groove (10) corresponding to the sealing ring (9) is formed on the top of the shock-absorbing oil cylinder (1).

5. The dustproof motorcycle shock absorber according to claim 1, characterized in that: A first fastening ring (7) is sleeved on the outer side of the bottom of the connecting sleeve (5), and the two ends of the opening of the first fastening ring (7) are detachably connected by bolts.

6. The dustproof motorcycle shock absorber according to claim 1, characterized in that: A layer of dustproof cloth is fixedly bonded to the outer side of the sleeve (4).

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