Shock absorber with novel protective cover

Abstract

The utility model discloses a shock absorber with a novel protective cover, which relates to the technical field of shock absorbers and comprises a piston cylinder, an upper end plate is arranged above the piston cylinder, a piston rod is slidably connected to the top of the piston cylinder, a rubber sleeve is sleeved on the outer wall of the piston rod, and the bottom of the piston rod is fixed with the bottom of the upper end plate. An upper end plate is arranged at the top of the piston cylinder, a lower end plate is arranged at the top of the piston cylinder, the top and the bottom of the rubber sleeve are detachably connected with the lower end plate and the upper end plate through installation pieces correspondingly, and the outer wall of the rubber sleeve is sleeved with an outer filter screen. The rubber sleeve is a traditional protective cover, the outer filter screen is additionally arranged between the outer wall of the rubber sleeve and the inner wall of the spring, when broken stones splash to the position of the rubber sleeve, the outer filter screen can block most of the broken stones, and therefore the rubber sleeve is further protected, and the service life of the rubber sleeve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a shock absorber with a novel protective cover. Background Art

[0002] Shock absorbers are essential components of vehicles, and the protective cover of the shock absorber can effectively prevent the shock absorber from being damaged by external substances, such as dust, gravel, etc. These substances may adhere to the shock absorber, affecting its normal operation or even causing damage. By preventing these substances from entering the shock absorber, the protective cover can keep the shock absorber clean and intact, extending its service life.

[0003] In the process of implementing the solution, the inventors found that the following problems existed in the prior art and have not been well solved: although the protective cover can isolate debris such as gravel from the shock absorber during the driving of the vehicle, it itself will be impacted by the gravel. As the vehicle drives and weathers, the protective cover will be damaged or broken. However, after the protective cover is damaged, it is difficult for most drivers to discover it at the first time. Over time, the gravel will cause damage to the piston of the shock absorber. Therefore, the service life of the conventional protective cover is relatively short. Once the protective cover is damaged, there will be a problem of lack of sealing. Utility Model Content

[0004] The main purpose of the utility model is to provide a shock absorber with a novel protective cover, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A shock absorber with a novel protective cover comprises a piston cylinder, an upper end plate is arranged above the piston cylinder, a piston rod is slidably connected to the top of the piston cylinder, a rubber sleeve is sleeved on the outer wall of the piston rod, the bottom of the piston rod is fixed to the bottom of the upper end plate, a lower end plate is arranged on the top of the piston cylinder, the top and bottom of the rubber sleeve are detachably connected to the lower end plate and the upper end plate respectively through mounting parts, an outer filter screen is sleeved on the outer wall of the rubber sleeve, a spring is sleeved on the outer wall of the outer filter screen, and the top and bottom of the spring are in contact with one end close to the lower end plate and the upper end plate respectively;

[0007] The lower end plate and the upper end plate are close to each other and are welded with fixing rings at the position of the outer filter screen, and a plurality of screws are provided at one end of the fixing rings close to each other, and nuts are threadedly connected to the outer walls of the screws, and pressure rings are sleeved at the top and bottom ends of the outer wall of the outer filter screen, and the pressure rings are drilled with three perforations at the position of the screw, and sheet-shaped rubber rings are bonded to one end of the pressure ring and the fixing ring, and the sheet-shaped rubber rings are drilled with two perforations at the position of the screw, and cloth pieces are provided at the top and bottom of the outer filter screen, and the cloth pieces are respectively located between the two sheet-shaped rubber rings at the top and bottom, and the cloth pieces are drilled with one perforation at the position of the screw, and a metal ring is installed at the position of the one perforation.

[0008] Preferably, the screw rod is respectively connected with the second through hole, the first through hole and the third through hole on the sheet-shaped rubber ring, and the nut is respectively located at one end of the pressure ring away from the sheet-shaped rubber ring.

[0009] Preferably, the inner diameter of the third perforation matches the outer diameter of the screw.

[0010] Preferably, the inner diameter of the second through hole is larger than the outer diameter of the screw, the inner diameter of the second through hole matches the inner diameter of the first through hole, and the top and bottom of the metal ring are respectively inserted into the second through hole of the sheet-shaped rubber ring.

[0011] Preferably, the sides of the two pressure ring sheets at the top and bottom ends that are close to each other are in contact with the top and bottom of the cloth sheet respectively.

[0012] Preferably, the outer filter screen and the cloth sheet are both made of nylon.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The piston cylinder, piston rod, lower end plate, upper end plate, spring and rubber sleeve of the present application form a complete shock absorber, and the rubber sleeve is a traditional protective cover. By adding an outer filter between the outer wall of the rubber sleeve and the inner wall of the spring, when gravel splashes to the position of the rubber sleeve, the outer filter can block most of the gravel, thereby further protecting the rubber sleeve and increasing its service life.

[0015] 2. The outer filter is clamped by the sheet-shaped rubber ring close to the fixed ring and the pressure ring, and then the screw penetrates the second perforation, the metal ring, the third perforation and the threaded connection with the nut, so that the outer filter can be easily disassembled and assembled. In the event that the outer filter is damaged or the rubber sleeve is naturally aged and cracked, the outer filter and the rubber sleeve can be easily replaced after being disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the structure of the utility model with a novel protective cover shock absorber;

[0017] Figure 2 This is a schematic diagram of the position structure of the piston rod and rubber sleeve of the utility model with a novel protective cover shock absorber;

[0018] Figure 3 This is a schematic diagram of the disassembled structure of the bottom end component of the outer filter screen of the shock absorber with a new protective cover of the utility model;

[0019] Figure 4 It is a schematic diagram of the metal ring separation structure at the bottom of the outer filter screen with a novel protective cover shock absorber of the utility model;

[0020] Figure 5 It is a schematic diagram of the enlarged structure of point A of the utility model with a novel protective cover shock absorber.

[0021] In the figure: 1. piston cylinder; 2. piston rod; 3. lower end plate; 4. upper end plate; 5. outer filter; 51. cloth piece; 52. perforation one; 53. metal ring; 6. rubber sleeve; 7. fixing ring piece; 8. pressure ring piece; 9. sheet-shaped rubber ring; 10. perforation two; 11. nut; 12. perforation three; 13. screw rod; 14. spring. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-5 As shown, the shock absorber with a novel protective cover comprises a piston cylinder 1, an upper end plate 4 is provided above the piston cylinder 1, a piston rod 2 is slidably connected to the top of the piston cylinder 1, a rubber sleeve 6 is sleeved on the outer wall of the piston rod 2, the bottom of the piston rod 2 is fixed to the bottom of the upper end plate 4, a lower end plate 3 is provided on the top of the piston cylinder 1, the top and bottom of the rubber sleeve 6 are detachably connected to the lower end plate 3 and the upper end plate 4 through mounting parts, an outer filter screen 5 is sleeved on the outer wall of the rubber sleeve 6, a spring 14 is sleeved on the outer wall of the outer filter screen 5, and the top and bottom of the spring 14 are in contact with one end close to the lower end plate 3 and the upper end plate 4 respectively;

[0024] The lower end plate 3 and the upper end plate 4 are close to each other and are welded with a fixing ring piece 7 at the position of the outer filter screen 5. A plurality of screws 13 are provided at one end of the fixing ring piece 7 close to each other. The outer wall of the screw 13 is threadedly connected with a nut 11. The top and bottom ends of the outer wall of the outer filter screen 5 are sleeved with a pressure ring piece 8. The pressure ring piece 8 is located at the position of the screw 13 and has a perforation three 12. The pressure ring piece 8 and the fixing ring piece 7 are bonded with a sheet-shaped rubber ring 9 at one end close to each other. The sheet-shaped rubber ring 9 is located at the position of the screw 13 and has a perforation two 10. Cloth pieces 51 are provided at the top and bottom of the outer filter screen 5. The cloth pieces 51 are respectively located between the two sheet-shaped rubber rings 9 at the top and bottom. The cloth pieces 51 are located at the position of the screw 13 and have a perforation one 52. Metal rings 53 are installed at the position of the perforation one 52.

[0025] Specifically, the screw 13 is respectively connected to the second perforation 10, the first perforation 52 and the third perforation 12 on the sheet-shaped rubber ring 9, and the nut 11 is respectively located at the end of the pressure ring 8 away from the sheet-shaped rubber ring 9, so that the outer filter 5 can be installed by the cloth piece 51 at the end for limiting.

[0026] Specifically, the inner diameter of the through hole 12 matches the outer diameter of the screw 13 to avoid shaking due to size difference.

[0027] Specifically, the inner diameter of the second perforation 10 is larger than the outer diameter of the screw 13, and the inner diameter of the second perforation 10 matches the inner diameter of the first perforation 52, and the top and bottom of the metal ring 53 are respectively inserted into the inside of the second perforation 10 of the sheet-shaped rubber ring 9, and the sides of the two pressure ring pieces 8 at the top and bottom ends that are close to each other are respectively in contact with the top and bottom of the cloth piece 51, so as to maintain the limiting effect on the cloth piece 51.

[0028] Specifically, the outer filter screen 5 and the cloth sheet 51 are both made of nylon, which has good impact resistance, wear resistance and softness, and can better protect the rubber sleeve 6. At the same time, when the piston rod 2 is telescopically deformed, it can cooperate with its deformation through its own flexibility.

[0029] Working principle: the piston cylinder 1, piston rod 2, lower end plate 3, upper end plate 4, spring 14 and rubber sleeve 6 of the present application form a complete shock absorber, and the rubber sleeve 6 is a traditional protective cover. By adding an outer filter screen 5 between the outer wall of the rubber sleeve 6 and the inner wall of the spring 14, when gravel splashes to the position of the rubber sleeve 6, the outer filter screen 5 can block most of the gravel, thereby further protecting the rubber sleeve 6 and increasing its service life. The outer filter screen 5 is clamped by the sheet-shaped rubber ring 9 close to the fixed ring plate 7 and the pressure ring plate 8, and then the screw 13 penetrates the second hole 10, the metal ring 53, and the third hole 12 and is threadedly connected with the nut 11, so that the outer filter screen 5 has the effect of convenient disassembly and assembly, so that when the outer filter screen 5 is damaged or the rubber sleeve 6 is naturally aged and cracked, the outer filter screen 5 can be conveniently disassembled and the outer filter screen 5 and the rubber sleeve 6 can be replaced.

[0030] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel shock absorber with a protective cover, comprising a piston cylinder (1), characterized in that: An upper end plate (4) is provided above the piston cylinder (1), a piston rod (2) is slidably connected to the top of the piston cylinder (1), a rubber sleeve (6) is sleeved on the outer wall of the piston rod (2), the bottom of the piston rod (2) is fixed to the bottom of the upper end plate (4), a lower end plate (3) is provided on the top of the piston cylinder (1), the top and bottom of the rubber sleeve (6) are detachably connected to the lower end plate (3) and the upper end plate (4) via mounting parts, the outer wall of the rubber sleeve (6) is sleeved with an outer filter screen (5), the outer wall of the outer filter screen (5) is sleeved with a spring (14), the top and bottom of the spring (14) are in contact with one end close to the lower end plate (3) and the upper end plate (4), respectively; The lower end plate (3) and the upper end plate (4) are close to each other and are welded with a fixing ring sheet (7) at the position of the outer filter screen (5). The ends of the fixing ring sheets (7) close to each other are provided with a plurality of screw rods (13). The outer walls of the screw rods (13) are threadedly connected with nuts (11). The top and bottom ends of the outer wall of the outer filter screen (5) are sleeved with a pressure ring sheet (8). The pressure ring sheet (8) is drilled with a through hole (12) at the position of the screw rod (13). The pressure ring sheet (8) and the fixing ring sheet (7) are connected to each other. The ends of the sheets (7) close to each other are bonded with sheet-shaped rubber rings (9), and the sheet-shaped rubber rings (9) are provided with second perforations (10) at the positions of the screw rod (13). The top and bottom of the outer filter (5) are provided with cloth sheets (51), and the cloth sheets (51) are respectively located between the two sheet-shaped rubber rings (9) at the top and bottom ends. The cloth sheets (51) are provided with first perforations (52) at the positions of the screw rod (13), and metal rings (53) are installed at the positions of the first perforations (52).

2. The shock absorber with a new protective cover according to claim 1 is characterized in that: The screw rod (13) is respectively connected to the second through hole (10), the first through hole (52) and the third through hole (12) on the sheet-shaped rubber ring (9), and the nut (11) is respectively located at one end of the pressure ring (8) away from the sheet-shaped rubber ring (9).

3. The shock absorber with a new protective cover according to claim 1 is characterized in that: The inner diameter of the third through hole (12) matches the outer diameter of the screw (13).

4. The shock absorber with a new protective cover according to claim 1 is characterized in that: The inner diameter of the second through hole (10) is respectively larger than the outer diameter of the screw (13), the inner diameter of the second through hole (10) matches the inner diameter of the first through hole (52), and the top and bottom of the metal ring (53) are respectively inserted into the inside of the second through hole (10) of the sheet-shaped rubber ring (9).

5. The shock absorber with a new protective cover according to claim 1 is characterized in that: The sides of the two pressure ring pieces (8) at the top and bottom ends that are close to each other are in contact with the top and bottom of the cloth piece (51) respectively.

6. The shock absorber with a novel protective cover according to claim 1 is characterized in that: The outer filter screen (5) and the cloth sheet (51) are both made of nylon.

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