Shock absorber convenient to clean

Abstract

The utility model discloses a shock absorber convenient to clean, which belongs to the field of shock absorbers and comprises a lower support and an upper support arranged above the lower support, a piston rod is fixed on the top surface of the lower support, and the shock absorber further comprises a double-layer protection mechanism arranged between the lower support and the upper support. The double-layer protection mechanism comprises a lower mounting seat which is in a cap shape and fixedly arranged on the periphery of the top face of the lower support in a sleeving mode, a protection type telescopic cylinder arranged between the upper support and the lower mounting seat, and a rubber dustproof piece arranged outside the protection type telescopic cylinder. The spring, the piston rod and the oil seal are wrapped in the double-layer protection mechanism and are isolated from external impurities, the problem that abrasion is caused due to the fact that the impurities are accumulated and are not easy to clean in the using process of an existing shock absorber is solved, and cleaning can be completed only by flushing the outer surfaces of the double-layer protection device and the shock absorber when a vehicle is cleaned at present.

Description

Technical Field

[0001] The utility model belongs to the technical field of shock absorbers, and in particular relates to a shock absorber which is easy to clean. Background Art

[0002] The shock absorber is mainly used to suppress the vibration caused by the spring rebounding after shock absorption and the impact from the road surface. When passing through uneven roads, although the shock-absorbing spring can filter the vibration of the road surface, the spring itself will still have reciprocating motion, and the shock absorber is used to suppress this spring jump. Its working principle is that when the equipment vibrates and relative motion occurs, the piston in the shock absorber moves up and down, and the oil in the shock absorber cavity repeatedly flows from one cavity through different pores into another cavity.

[0003] However, when most shock absorbers are used in equipment, the surface of the shock absorber is easily contaminated with more impurities, which will cause the impurities to accumulate at the top of the hydraulic cylinder during the reciprocating motion of the shock absorber, making it difficult to clean. It will also increase the friction of the hydraulic cylinder and damage the oil seal connected to the surface of the hydraulic cylinder, thereby reducing the sealing inside the shock absorber, causing external air and impurities to easily enter the shock absorber, polluting the hydraulic oil and reducing the shock absorbing effect of the shock absorber. Utility Model Content

[0004] The purpose of the utility model is to provide a shock absorber which is easy to clean, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: comprising a lower support and an upper support arranged above the lower support, a piston rod is fixed to the top surface of the lower support, a cylinder is fixed to the bottom surface of the upper support, the end of the piston rod penetrates into the cylinder and is connected to a piston, a spring is sleeved on the rod body of the piston rod, and an oil seal is arranged on the inner side of the spring, the oil seal is sleeved on the rod body of the piston rod and is fixedly connected to the bottom surface of the cylinder, and also includes a double-layer protection mechanism arranged between the lower support and the upper support;

[0006] The double-layer protection mechanism includes a lower mounting seat fixedly sleeved on the outer periphery of the top surface of the lower support in a hat shape, a protective telescopic cylinder arranged between the upper support and the lower mounting seat, and a rubber dustproof piece arranged outside the protective telescopic cylinder.

[0007] It should be noted in the scheme that the protective telescopic cylinder includes an outer protective shell that is sleeved on the outside of the cylinder and fixed to the outer periphery of the bottom surface of the upper support, an inner protective shell is fixed to the outer periphery of the top surface of the lower mounting seat, the spring is located on the inner side of the inner protective shell, and the top end of the inner protective shell slides into the outer protective shell.

[0008] It should be noted in the scheme that the rubber dustproof part includes a dust cover which is corrugatedly sleeved on the outer wall of the inner protective shell, and rubber concave parts are provided at both ends of the dust cover. An annular mounting groove matching the rubber concave part is opened on the outer walls of the inner protective shell and the outer protective shell, and a locking hoop is fixed in the groove of the rubber concave part.

[0009] Compared with the prior art, the utility model provides a shock absorber that is easy to clean, which has at least the following beneficial effects:

[0010] (1) By setting up a double-layer protection mechanism, the spring, piston rod and oil seal are wrapped inside the double-layer protection mechanism to isolate them from external impurities, thereby solving the problem of wear caused by impurities accumulation and difficulty in cleaning during use of the existing shock absorber. Now, when washing the vehicle, it is only necessary to rinse the outer surface of the double-layer protection device and the shock absorber to complete the cleaning.

[0011] (2) Through the provision of the rubber dustproof parts, during actual use, the dust cover is sleeved on the outer wall of the inner protective shell, and the portion of the dust cover extending beyond the inner protective shell is sleeved on the outer wall of the outer protective shell, and then the rubber concave parts at both ends of the dust cover are respectively installed in the annular mounting grooves of the inner protective shell and the outer protective shell. When the locking hoop is used to fix the rubber concave parts in the annular mounting groove, the isolation effect of the spring, the piston rod and the oil seal can be further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the front cross-sectional structure of the utility model product;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the utility model product;

[0014] Figure 3 It is a schematic diagram of the front cross-sectional structure of the utility model product;

[0015] Figure 4 It is an enlarged structural diagram of point A of the utility model product;

[0016] Figure 5 It is an enlarged structural schematic diagram of position B of the utility model product.

[0017] In the figure: 1. lower support; 2. lower mounting seat; 3. upper support; 4. dust cover; 5. locking hoop; 6. rubber concave part; 7. spring; 8. piston rod; 9. oil seal; 10. cylinder barrel; 11. inner protective shell; 12. outer protective shell. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in 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 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.

[0019] See also Figure 1-5 , a shock absorber that is easy to clean, comprising a lower support 1 and an upper support 3 arranged above the lower support 1, a piston rod 8 is fixed to the top surface of the lower support 1, a cylinder 10 is fixed to the bottom surface of the upper support 3, the end of the piston rod 8 penetrates into the cylinder 10 and is connected with a piston, the rod body of the piston rod 8 is sleeved with a spring 7, and an oil seal 9 is arranged on the inner side of the spring 7, the oil seal 9 is sleeved on the rod body of the piston rod 8 and is fixedly connected to the bottom surface of the cylinder 10, and also includes a double-layer protection mechanism arranged between the lower support 1 and the upper support 3;

[0020] The double-layer protection mechanism includes a lower mounting seat 2 fixedly sleeved on the outer periphery of the top surface of the lower support 1 in a hat shape, a protective telescopic cylinder arranged between the upper support 3 and the lower mounting seat 2, and a rubber dustproof member arranged outside the protective telescopic cylinder;

[0021] By setting up the double-layer protection mechanism, the spring 7, the piston rod 8 and the oil seal 9 are wrapped inside the double-layer protection mechanism to isolate them from external impurities, thereby solving the problem of wear caused by impurities accumulation and difficulty in cleaning during use of the existing shock absorber. Now, when washing the vehicle, it is only necessary to rinse the outer surface of the double-layer protection device and the shock absorber to complete the cleaning.

[0022] Further, refer to Figure 1-3 As shown, it is worth noting that the protective telescopic cylinder includes an outer protective shell 12 which is sleeved on the outside of the cylinder 10 and fixed on the outer periphery of the bottom surface of the upper support 3, and an inner protective shell 11 is fixed on the outer periphery of the top surface of the lower mounting seat 2, the spring 7 is located inside the inner protective shell 11, and the top end of the inner protective shell 11 slides into the outer protective shell 12;

[0023] Through the setting of the slide groove protection type telescopic cylinder, during actual use, the inner protective shell 11 is fixed to the lower mounting seat 2, and the outer protective shell 12 is fixed to the upper support 3. The inner protective shell 11 is inserted into the outer protective shell 12, and finally the lower support 1 is fixedly connected to the piston rod 8, so as to achieve the effect of isolating the spring 7, the piston rod 8 and the oil seal 9.

[0024] Further, refer to Figure 1-3As shown, it is worth noting that the rubber dustproof part includes a dust cover 4 which is corrugatedly sleeved on the outer wall of the inner protective shell 11, and both ends of the dust cover 4 are provided with rubber concave parts 6, and the outer walls of the inner protective shell 11 and the outer protective shell 12 are provided with an annular mounting groove matching the rubber concave part 6, and a locking hoop 5 is fixed in the groove of the rubber concave part 6;

[0025] Through the provision of the rubber dustproof parts, during actual use, the dust cover 4 is sleeved on the outer wall of the inner protective shell 11, and the part of the dust cover 4 that exceeds the inner protective shell 11 is sleeved on the outer wall of the outer protective shell 12, and then the rubber concave parts 6 at both ends of the dust cover 4 are respectively installed in the annular mounting grooves of the inner protective shell 11 and the outer protective shell 12, and the rubber concave parts 6 are fixed in the annular mounting grooves by using the locking hoop 5, which can further enhance the isolation effect of the spring 7, the piston rod 8 and the oil seal 9. When cleaning, you only need to rinse the outer surface of the utility model to clean the utility model.

[0026] The above is an introduction to a shock absorber that is easy to clean provided by the utility model. In the introduction, specific preferred embodiments are used to illustrate the principles and implementation methods of the utility model. These embodiments are only used to help understand the principles and core ideas of the utility model. It should be pointed out that for ordinary technicians in this field, without departing from the design ideas of the utility model, the implementation plans in the above embodiments can be further combined or replaced, and the utility model can be improved and modified in a number of ways. These improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A shock absorber that is easy to clean, comprising a lower support (1) and an upper support (3) arranged above the lower support (1), a piston rod (8) being fixed to the top surface of the lower support (1), a cylinder (10) being fixed to the bottom surface of the upper support (3), the end of the piston rod (8) being inserted into the cylinder (10) and connected to a piston, the rod body of the piston rod (8) being sleeved with a spring (7), and an oil seal (9) being arranged on the inner side of the spring (7), the oil seal (9) being sleeved on the rod body of the piston rod (8) and being fixedly connected to the bottom surface of the cylinder (10), characterized in that: It also includes a double-layer protection mechanism arranged between the lower support (1) and the upper support (3); The double-layer protection mechanism comprises a lower mounting seat (2) which is fixedly mounted on the outer periphery of the top surface of the lower support (1) in a hat-like shape, a protective telescopic cylinder arranged between the upper support (3) and the lower mounting seat (2), and a rubber dustproof part arranged outside the protective telescopic cylinder.

2. The shock absorber that is easy to clean according to claim 1, characterized in that: The protective telescopic cylinder comprises an outer protective shell (12) which is sleeved on the outside of the cylinder (10) and fixed on the outer periphery of the bottom surface of the upper support (3); an inner protective shell (11) is fixed on the outer periphery of the top surface of the lower mounting seat (2); the spring (7) is located inside the inner protective shell (11), and the top end of the inner protective shell (11) slides into the outer protective shell (12).

3. The shock absorber that is easy to clean according to claim 2, characterized in that: The rubber dustproof part comprises a dust cover (4) which is corrugatedly sleeved on the outer wall of the inner protective shell (11), and rubber concave parts (6) are provided at both ends of the dust cover (4). The outer walls of the inner protective shell (11) and the outer protective shell (12) are provided with an annular mounting groove matching the rubber concave part (6), and a locking hoop (5) is fixed in the groove of the rubber concave part (6).

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