Cylindrical automobile shock absorber

Abstract

The utility model provides a cylinder type automobile shock absorber, which relates to the technical field of automobile shock absorbers, and comprises a shock absorption cylinder barrel, an upper dust cover and an outer bristle ring, the upper dust cover is arranged at the upper part of the shock absorption cylinder barrel, the outer bristle ring is rotatably arranged at the lower part of the upper dust cover, the top of the upper dust cover is communicated with an upper air inlet, and a lower limiting grid is arranged at the bottom of the upper air inlet; a one-way air inlet valve plate axially slides on the inner side of the lower limiting grid, a lower connecting frame is fixed to the inner side of the lower portion of the upper dustproof cover, and a connecting sliding column penetrates through the lower connecting frame in a sliding mode. Inner bristles of the outer bristle ring rub dust outside the damping cylinder barrel, the number of the dust outside the damping cylinder barrel entering the upper dustproof cover is reduced, abrasion of the dust to a damping connecting rod is reduced, and the problems that dust enters the dustproof cover, dust attachment accelerates abrasion of the connecting rod, dust outside the connecting rod accelerates abrasion of an oil seal, and the service life of the oil seal is prolonged are solved. And the service life of the shock absorber is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile shock absorbers, in particular to a cylinder type automobile shock absorber. Background Art

[0002] The cylinder-type automobile shock absorber is a component of the vehicle's suspension. The cylinder-type automobile shock absorber can suppress the vibration when the suspension spring rebounds after absorbing shock. The suspension reduces small vibrations through the shock absorber, and the cylinder-type automobile shock absorber achieves the effect of improving the stability of the suspension.

[0003] The shock absorber is installed on the lower chassis of the vehicle along with the suspension. Dust will stick to the outside of the shock absorber when the vehicle is running. The connecting rod of the shock absorber will be equipped with a dust cover, but a thick layer of dust will adhere to the outside of the shock absorber cylinder. When the shock absorber is compressed, the connecting rod and the dust cover move down synchronously, and the dust cover will directly rub against the thick dust accumulated on the outside of the cylinder. The dust cover directly grinds the dust, causing the dust to enter the inside of the dust cover. The adhesion of dust will accelerate the wear of the connecting rod. The dust on the outside of the connecting rod accelerates the wear of the oil seal and reduces the life of the shock absorber. Summary of the invention

[0004] The disclosed embodiment relates to a cylinder-type automobile shock absorber, wherein an outer brush ring moves vertically with an upper dust cover, and inner bristles of the outer brush ring rub against dust on the outside of the shock absorber cylinder, thereby reducing the amount of dust from the outside of the shock absorber cylinder that enters the upper dust cover and reducing the wear of the shock absorber connecting rod by dust. While the outer brush ring moves vertically, it rotates circumferentially along an outer spiral groove, and the rotation of the outer brush ring increases the direction of dust cleaning, thereby improving the cleaning effect of dust on the outside of the shock absorber cylinder.

[0005] In a first aspect of the present disclosure, a cylinder-type automobile shock absorber is provided, which specifically includes: a shock-absorbing cylinder, an upper dust cover and an outer bristle ring, wherein an upper dust cover is arranged on the upper part of the shock-absorbing cylinder, an outer bristle ring is rotatably arranged on the lower part of the upper dust cover, a shock-absorbing connecting rod is slidably arranged on the upper part of the shock-absorbing cylinder, a piston is arranged at the tail end of the shock-absorbing connecting rod and is slidably connected to the inner side of the shock-absorbing cylinder, the interior of the shock-absorbing cylinder is filled with hydraulic oil and a liquid storage cylinder is also arranged on the outer layer, an outer spiral slide groove is arranged on the outer side of the shock-absorbing cylinder, and connecting rings are fixed to the bottom of the shock-absorbing cylinder and the head end of the shock-absorbing connecting rod, and the connecting rings are connected to the vehicle.

[0006] In at least some embodiments, the top of the upper dust cover is connected to an upper air inlet, a filter is provided at the top of the upper air inlet, a lower limit grid is provided at the bottom of the upper air inlet, a one-way air inlet valve plate is axially slidable on the inner side of the lower limit grid, a lower connecting frame is fixed to the inner side of the lower part of the upper dust cover, the lower connecting frame is an annular grid structure, a connecting sliding column slides through the lower connecting frame, and the lower end of the connecting sliding column is fixedly connected to the one-way air outlet valve plate.

[0007] In at least some embodiments, upper connecting springs are fixed to the top ends of the connecting slide posts on both sides of the one-way air outlet valve plate, and the lower ends of the upper connecting springs are fixedly connected to the lower connecting frame.

[0008] In at least some embodiments, the upper connecting spring supports the connecting slide column and the one-way air outlet valve plate to move upward, and when the one-way air outlet valve plate takes in air, the one-way air outlet valve plate moves upward to fit the bottom of the lower connecting frame for sealing.

[0009] In at least some embodiments, the upper dust cover is fixedly connected to the shock absorbing connecting rod, the shock absorbing connecting rod is located on the inner side of the upper dust cover, and the one-way air outlet valve sheet surrounds the outer side of the shock absorbing connecting rod, and the one-way air outlet valve sheet performs a one-way air outlet operation.

[0010] In at least some embodiments, the inner circular array of the outer bristle ring has inner bristles, and an inner sliding ball is fixed on the inner side of the outer bristle ring. The inner bristles slide and rub against the outer side of the shock absorbing cylinder, and the inner bristles brush off the dust on the outside of the shock absorbing cylinder, reducing the amount of dust on the outside of the shock absorbing cylinder that enters the upper dust cover.

[0011] In at least some embodiments, the outer bristle ring is located below the one-way air outlet valve plate, and the inner sliding ball and the outer spiral sliding groove are slidably connected. When the upper dust cover and the outer bristle ring move vertically axially, the outer bristle ring rotates circumferentially at the same time. The circumferential rotation of the outer bristle ring increases the direction of dust cleaning, and the outer bristle ring vertically cooperates with the horizontal circumferential multi-directional operation to brush dust.

[0012] The utility model provides a cylinder-type automobile shock absorber, which has the following beneficial effects:

[0013] The outer brush ring moves vertically with the upper dust cover, and the inner bristles of the outer brush ring rub the dust on the outside of the shock-absorbing cylinder, reducing the amount of dust outside the shock-absorbing cylinder entering the upper dust cover and reducing the wear of the shock-absorbing connecting rod by dust.

[0014] The outer brush ring moves vertically and rotates circumferentially along the outer spiral groove at the same time. The rotation of the outer brush ring increases the direction of dust cleaning and improves the cleaning effect of dust on the outside of the shock-absorbing cylinder.

[0015] When the upper dust cover moves downward and the internal space is squeezed and reduced, the one-way air inlet valve moves downward synchronously, and the upper dust cover exhausts air toward the outer brush ring from the bottom, blowing the dust cleaned by the outer brush ring to the surroundings. After cleaning, the dust enters the upper dust cover, and at the same time, the dust mixed in the inner brush can be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture:

[0019] Figure 1 A schematic diagram showing the overall structure of the present application;

[0020] Figure 2 A schematic diagram of a half-section structure of the upper dust cover of the present application is shown;

[0021] Figure 3 A schematic diagram showing the lower connecting frame structure of the present application is shown;

[0022] Figure 4 A schematic diagram showing the lower outer bristle ring structure of the present application is shown;

[0023] Figure 5 A schematic diagram showing the structure of the split state of the present application;

[0024] Figure 6 A schematic diagram of a half-section structure of an upper dust cover and an upper air inlet of the present application is shown;

[0025] Figure 7 This application shows Figure 6 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 8 This application shows Figure 6 Schematic diagram of the enlarged structure of B.

[0027] Reference numerals list

[0028] 1. shock-absorbing cylinder; 101. shock-absorbing connecting rod; 102. outer spiral slide; 103. connecting lifting ring;

[0029] 2. Upper dust cover; 201. Upper air inlet; 202. Lower limit grid; 203. One-way air inlet valve plate; 204. Lower connecting frame; 205. Upper connecting spring; 206. Connecting slide column; 207. One-way air outlet valve plate;

[0030] 3. Outer brush ring; 301. Inner brush; 302. Inner sliding ball. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment 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.

[0032] Example 1: Please refer to Figures 1 to 8 :

[0033] The utility model proposes a cylinder-type automobile shock absorber, comprising: a shock-absorbing cylinder 1, an upper dust cover 2 and an outer bristle ring 3, a shock-absorbing connecting rod 101 is slidably arranged on the upper part of the shock-absorbing cylinder 1, a piston is arranged at the tail end of the shock-absorbing connecting rod 101 and is slidably connected to the inner side of the shock-absorbing cylinder 1, the shock-absorbing cylinder 1 is filled with hydraulic oil and a liquid storage cylinder is arranged on the outer layer, an outer spiral slide groove 102 is arranged on the outer side of the shock-absorbing cylinder 1, and the bottom of the shock-absorbing cylinder 1 and the shock-absorbing connecting rod 101 are connected to each other. A connecting ring 103 is fixed at the head end, and the connecting ring 103 is connected to the vehicle. An upper dust cover 2 is arranged on the upper part of the shock absorber cylinder 1. The top of the upper dust cover 2 is connected with an upper air inlet 201. A filter is arranged on the top of the upper air inlet 201. A lower limit grid 202 is arranged at the bottom of the upper air inlet 201. A one-way air inlet valve plate 203 is axially slidably arranged on the inner side of the lower limit grid 202. A lower connecting frame 204 is fixed to the inner side of the lower part of the upper dust cover 2. The lower connecting frame 204 is an annular grid structure. The lower connecting frame 204 limits the downward movement range of the lower limit grid 202. A connecting slide column 206 is slidably passed through the lower connecting frame 204. The lower end of the connecting slide column 206 is fixedly connected to the one-way air outlet valve plate 207. Upper connecting springs 205 are fixed to the tops of the connecting slide columns 206 on both sides of the one-way air outlet valve plate 207. The lower ends of the upper connecting springs 205 are fixedly connected to the lower connecting frame 204. The spring 205 supports the connecting slide column 206 and the one-way air outlet valve plate 207 to move upward. When the one-way air outlet valve plate 207 takes in air, the one-way air outlet valve plate 207 moves upward to fit the bottom of the lower connecting frame 204 for sealing. The upper dust cover 2 and the shock absorber connecting rod 101 are fixedly connected. The shock absorber connecting rod 101 is located on the inner side of the upper dust cover 2. The one-way air outlet valve plate 207 surrounds the outer side of the shock absorber connecting rod 101, and the one-way air outlet valve plate 207 performs a one-way air outlet operation.

[0034] An outer bristle ring 3 is rotated at the lower part of the upper dust cover 2, and an inner ring array of inner bristles 301 is arranged inside the outer bristle ring 3. An inner sliding ball 302 is fixed on the inner side of the outer bristle ring 3. The inner bristles 301 slide and rub against the outer side of the shock-absorbing cylinder 1. The inner bristles 301 brush off the dust on the outside of the shock-absorbing cylinder 1, thereby reducing the amount of dust on the outside of the shock-absorbing cylinder 1 that enters the upper dust cover 2, reducing the wear of the shock-absorbing connecting rod 101 by dust, and preventing the adhesion of dust to the shock-absorbing connecting rod 101 from accelerating the wear of the oil seal.

[0035] In the disclosed embodiment, the outer brush ring 3 is located below the one-way air outlet valve plate 207, and the inner sliding ball 302 is slidably connected to the outer spiral sliding groove 102. When the upper dust cover 2 and the outer brush ring 3 move vertically axially, the outer brush ring 3 rotates circumferentially at the same time. The circumferential rotation of the outer brush ring 3 increases the direction of dust cleaning. The outer brush ring 3 vertically cooperates with the horizontal circumferential direction to perform dust brushing operations in multiple directions, which has a better effect on cleaning stubborn dust on the outside of the shock-absorbing cylinder 1, and further improves the cleaning effect of the dust on the outside of the shock-absorbing cylinder 1.

[0036] Embodiment 2, on the basis of embodiment 1, the outer spiral groove 102 of the shock absorbing cylinder 1 is omitted. The omission of the outer spiral groove 102 reduces the processing steps of the shock absorbing cylinder 1, improves the processing efficiency of the shock absorbing cylinder 1, and reduces the manufacturing cost of the shock absorbing cylinder 1. The upper dust cover 2 and the outer brush ring 3 are fixedly connected. The outer brush ring 3 brushes the dust on the outside of the shock absorbing cylinder 1 while the upper dust cover 2 vents air, and the cleaning operation can still be completed well.

[0037] The working principle of this embodiment is as follows: the connecting ring 103 is connected to the vehicle suspension, the shock absorbing connecting rod 101 and the shock absorbing cylinder 1 slide to extend and compress to complete the shock absorbing effect, the shock absorbing connecting rod 101 and the shock absorbing cylinder 1 slide to squeeze the internal hydraulic oil and nitrogen to achieve a buffering effect, the upper dust cover 2 moves up and down in the vertical axis with the buffering of the shock absorbing connecting rod 101, the outer brush ring 3 moves vertically with the upper dust cover 2, the inner bristles 301 of the outer brush ring 3 rub the dust on the outside of the shock absorbing cylinder 1, and the inner bristles 301 brush the dust on the outside of the shock absorbing cylinder 1 to reduce the shock absorption. The amount of dust outside the cylinder 1 entering the upper dust cover 2 is reduced, which reduces the wear of the shock-absorbing connecting rod 101 by dust, and also prevents the dust from adhering to the shock-absorbing connecting rod 101 to accelerate the wear of the oil seal, thereby extending the service life; while the outer brush ring 3 moves vertically, the inner sliding ball 302 rotates circumferentially along the spiral outer spiral groove 102, and the circumferential rotation of the outer brush ring 3 increases the direction of dust cleaning. The outer brush ring 3 vertically cooperates with the horizontal circumferential direction to perform dust brushing operations in multiple directions, further improving the cleaning effect of the dust outside the shock-absorbing cylinder 1, and the cleaning effect is better for stubborn dust;

[0038] The upper dust cover 2 moves downward and approaches the shock-absorbing cylinder 1. The upper dust cover 2 moves downward and squeezes and shrinks the internal space. When the upper dust cover 2 moves downward, the internal pressure blows the one-way air intake valve piece 203 upward to fit and seal the lower end of the upper air intake port 201, and the upper air intake port 201 will not exhaust air. The pressure of the upper dust cover 2 is greater than the supporting force of the upper connecting spring 205. The internal pressure of the upper dust cover 2 will squeeze the one-way air intake valve piece 203 to move downward. The one-way air intake valve piece 203 moves downward synchronously, and there is space for air exhaust between the one-way air intake valve piece 203 and the lower connecting frame 204. The upper dust cover 2 exhausts air toward the outer brush ring 3 below, and the dust cleaned by the outer brush ring 3 is blown around to be cleaned. The dust after cleaning The upper dust cover 2 can enter the interior of the upper dust cover 2, and at the same time, the dust mixed with the inner bristles 301 can be cleaned to ensure the cleanliness of the inner bristles 301. When the upper dust cover 2 moves up and away from the shock absorber cylinder 1, the internal space of the upper dust cover 2 expands for air suction operation, and the one-way air intake valve plate 203 is sucked down by the suction force of the upper dust cover 2. The upper air inlet 201 and the interior of the upper dust cover 2 are connected for air intake operation. The upper connecting spring 205 and the suction force of the upper dust cover 2 drive the one-way air outlet valve plate 207 to move up and fit the lower connecting frame 204 for sealing. No air will enter from the bottom of the upper dust cover 2 to avoid the suction of dust from below. The inner bristles 301 of the outer brush ring 3 can also filter and block dust.

[0039] In this article, there are a few points to note:

[0040] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0041] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0042] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A cylinder-type automobile shock absorber, comprising: A shock-absorbing cylinder (1), an upper dust cover (2) and an outer bristle ring (3); characterized in that an upper dust cover (2) is arranged on the upper part of the shock-absorbing cylinder (1), an outer bristle ring (3) is rotatably arranged on the lower part of the upper dust cover (2), an upper air inlet (201) is connected to the top of the upper dust cover (2), a lower limit grid (202) is arranged at the bottom of the upper air inlet (201), a one-way air inlet valve plate (203) is axially slidable on the inner side of the lower limit grid (202), a lower connecting frame (204) is fixed on the inner side of the lower part of the upper dust cover (2), a connecting slide column (206) is slidably passed through the lower connecting frame (204), and the lower end of the connecting slide column (206) is fixedly connected to the one-way air outlet valve plate (207).

2. A cylinder type automobile shock absorber according to claim 1, characterized in that: A shock absorbing connecting rod (101) is slidably mounted on the upper portion of the shock absorbing cylinder (1), an outer spiral slide groove (102) is arranged on the outer side of the shock absorbing cylinder (1), and a connecting ring (103) is fixed to the bottom of the shock absorbing cylinder (1) and the head end of the shock absorbing connecting rod (101).

3. A cylinder type automobile shock absorber according to claim 1, characterized in that: An upper connecting spring (205) is fixed to the top of the connecting sliding column (206) on both sides of the one-way air outlet valve plate (207), and the lower end of the upper connecting spring (205) is fixedly connected to the lower connecting frame (204).

4. A cylinder type automobile shock absorber according to claim 3, characterized in that: The upper connecting spring (205) supports the connecting sliding column (206) to move upward, and the one-way air outlet valve plate (207) moves upward to fit the bottom of the lower connecting frame (204).

5. A cylinder type automobile shock absorber according to claim 2, characterized in that: The upper dust cover (2) and the shock absorbing connecting rod (101) are fixedly connected, the shock absorbing connecting rod (101) is located on the inner side of the upper dust cover (2), and the one-way air outlet valve plate (207) surrounds the outer side of the shock absorbing connecting rod (101).

6. A cylinder type automobile shock absorber according to claim 5, characterized in that: The inner ring array of the outer bristle ring (3) has inner bristles (301), the inner side of the outer bristle ring (3) has an inner sliding ball (302) fixed thereto, and the inner bristles (301) and the outer side of the damping cylinder (1) are in sliding friction with each other.

7. A cylinder type automobile shock absorber according to claim 6, characterized in that: The outer bristle ring (3) is located below the one-way air outlet valve plate (207), and the inner sliding ball (302) and the outer spiral sliding groove (102) are slidably connected. When the upper dust cover (2) and the outer bristle ring (3) move vertically axially, the outer bristle ring (3) simultaneously rotates in a circular direction.

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