An oil-nitrogen split shock absorber

Abstract

The present invention discloses an oil-nitrogen split shock absorber, comprising a punch head, a push rod fixedly connected to the top of the punch head, a sleeve slidably connected to the outer wall of the punch head, and a sludge cleaning mechanism provided inside the sleeve. The invention relates to the technical field of shock absorbers. By providing the sludge cleaning mechanism, when the spring A is stretched, the lead angle of the thread is large, so that when the pulled clamping block is pulled vertically downward, a component force is separated along the thread direction of the spring A, and the clamping block begins to be pulled and the thread rotates and descends rapidly. The outer wall of the spring A is fully scraped by the scraper on the inner wall of the clamping block, and a lot of dust generated by off-roading in the wild penetrates into the sleeve, while a large amount of soil, residue and dust adhering to the spring A are all scraped off, thereby ensuring the buffering stability of the spring A itself and reducing the problem of a series of chemical changes caused by the contact between the spring A and other substances, which leads to a decrease in the service life of the spring A.

Description

Technical Field

[0001] The present invention relates to the technical field of shock absorbers, in particular to an oil-nitrogen split shock absorber. Background Art

[0002] Nitrogen shock absorption means that the special inner wall bypass groove oil circuit automatically adapts to flat or bumpy roads. The softness and hardness of the shock absorber can be adjusted by adjusting the nitrogen pressure. The larger oil tank and better thermal attenuation performance increase the driver's driving comfort and enjoyment, while also taking into account the safety of high-speed bumpy driving.

[0003] Reference is made to a vehicle shock absorber described in patent application publication number CN107654558B, specifically a vehicle shock absorber comprising an oil reservoir, a working cylinder, a piston rod, and a buffer device, wherein the working cylinder is disposed within the oil reservoir, the upper portion of the working cylinder being connected to the upper portion of the oil reservoir via a connector, and a bottom valve being provided at the bottom of the working cylinder; the piston rod being movably disposed within the working cylinder, and a piston valve being provided at the bottom of the piston rod;

[0004] After a car has been driven for a long time in a high-temperature outdoor environment, impurities such as water and mud are easily adhered to the shock absorber cylinder and spring of the oil-nitrogen split shock absorber. These impurities are wrapped around the outside of the shock absorber cylinder and spring, reducing the heat dissipation capacity of the shock absorber cylinder and weakening the elastic effect of the spring. The impurities on the outside of the oil-nitrogen split shock absorber are generally washed away with a high-pressure water gun. During outdoor driving, it is difficult to clean manually and the cleaning process is complicated. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an oil-nitrogen split shock absorber, which achieves the purpose of solving the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an oil-nitrogen split shock absorber, comprising a punch head, a push rod fixedly connected to the top of the punch head, a sleeve slidably connected to the outer wall of the punch head, and a sludge cleaning mechanism provided inside the sleeve;

[0007] The sludge cleaning mechanism comprises:

[0008] Spring A, which is a spiral strip structure. One end of the spring A is fixedly connected to the bottom of the punch head. The bottom of the spring A is fixedly connected to a cylinder. The inner wall of the cylinder is provided with a connecting hole. The bottom of the punch head is fixedly connected to a telescopic rod. The spring A is used to buffer the rebound of the punch head.

[0009] The clamping block is a plate-shaped structure, the inner wall of the clamping block contacts the outer wall of the spring A, the bottom of the clamping block is fixedly connected to an elastic rope A, one end of the elastic rope A is fixedly connected to the top of the cylinder, and the clamping block is used to clamp the spring A and scrape it to clean it.

[0010] Preferably, a magnetic block is fixedly connected to the top of the clamp block, and there are two clamp blocks. The outer wall of the clamp block on the left is fixedly connected to a rotating sleeve B, and the outer wall of the clamp block on the right is fixedly connected to a rotating sleeve A, so that the clamp block can be rotated to open and close.

[0011] Preferably, the inner walls of the rotating sleeve A and the rotating sleeve B are rotatably connected with a round rod, the two ends of the round rod are fixedly connected with a baffle, the outer wall of the baffle is fixedly connected with a thin spring, one end of the thin spring is fixedly connected to the outer wall of the rotating sleeve B, and one end of the other thin spring is fixedly connected to the outer wall of the rotating sleeve A, so that they are connected to each other.

[0012] Preferably, the inner wall of the clamping block is slidably connected to a scraper, the outer wall of the scraper is fixedly connected to a spring B, one end of the spring B is fixedly connected to a connecting plate, the outer wall of the connecting plate is fixedly connected to a fixed block, the outer wall of the fixed block is fixedly connected to the outer wall of the clamping block, and the outer wall of the scraper is provided with a self-cleaning mechanism, so as to self-clean and prevent affecting the subsequent buffering and shock absorption effect.

[0013] Preferably, the self-cleaning mechanism includes a slider, the outer wall of the slider is fixedly connected to the outer wall of the scraper, the outer wall of the slider is slidably connected to the slider, the outer wall of the slider is fixedly connected to an elastic rope B, and one end of the elastic rope B is fixedly connected to the outer wall of the slider, so that the elastic rope B can be stretched to pull it.

[0014] Preferably, the outer wall of the slider is rotatably connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to a connecting sleeve, the outer wall of the connecting sleeve is fixedly connected to bristles, and the outer wall of the rotating rod is fixedly connected to a roller, so that cleaning work is performed by the bristles.

[0015] Preferably, the magnetic block itself is magnetic, the bottom of the punch head is magnetic, and the magnetism of the magnetic block and the side opposite to the bottom of the punch head is magnetism of opposite poles attracting each other, so that they are magnetically attracted to each other.

[0016] Preferably, the slider is in an arc shape, and the slider and the scraper have the same curvature and are concentric circles.

[0017] The present invention provides an oil-nitrogen split shock absorber, which has the following beneficial effects:

[0018] 1. The present invention sets a sludge cleaning mechanism. The elastic rope A pulls the clamping block out of the magnetic attraction between the magnetic block and the bottom of the punch head, and pulls it downward quickly. When the spring A is stretched, the rise angle of the thread is large. Therefore, when the pulled clamping block is pulled vertically downward, a component force is separated along the thread direction of the spring A, and it begins to be pulled by the clamping block and the thread rotates downward quickly. The outer wall of the spring A is fully scraped by the scraper on the inner wall of the clamping block, and a lot of dust caused by off-roading in the wild penetrates into the sleeve, while a large amount of soil, residue and dust adhering to the spring A are all scraped off, thereby ensuring the buffering stability of the spring A itself and reducing the problem of a series of chemical changes caused by the contact between the spring A and other substances, which leads to a decrease in the service life of the spring A.

[0019] 2. The present invention is provided with a sludge cleaning mechanism. After the clamping blocks have been used for a long time, the clamping blocks on both sides can be bent upwards, and the left and right clamping blocks can be raised and rotated by rotating the rotating sleeve B and the rotating sleeve A, and the two clamping blocks can be opened. After opening, the clamping blocks can naturally separate from the outer wall of the spring A, and can be disassembled, installed, repaired, and replaced and cleaned in time, ensuring the efficient and convenient automatic cleaning of the spring A and improving the cleaning stability of the spring A. The scraper on the inner wall of the clamping block is also pushed by the elastic force of the spring B to clamp the spring A. It is suitable for most springs A of different sizes and can achieve an efficient cleaning wiping effect.

[0020] 3. The present invention provides a self-cleaning mechanism. When the clamping block rotates rapidly and descends on the outer wall of the spring A, the slider on the outer wall of the slider on the scraper will be swung and start to slide along the arc of the slider. Due to the inertia of the swinging of the clamping block, the slider slides from the middle part of the slider to the ends of the slider, and the slider pulls the elastic rope B to deform, and drives the connecting sleeve and the bristles along the outer wall of the slider to sweep the outer wall of the scraper, so that all the dirt and dust adhered to the spring A due to the scraper scraping for a long time are scraped off, and the scraper scraping edge is brushed more carefully, which further reduces the friction of the scraper when sliding on the outer wall of the spring A due to the residue adhering to the outer wall, and also improves the cleaning effect of the scraper when scraping the outer wall of the spring A, avoiding the problem of secondary pollution.

[0021] 4. The present invention provides a self-cleaning mechanism. When the slider slides on the outer wall of the slider, the roller on the outer wall of the rotating rod will contact the outer wall of the scraper, and rotate and roll itself when the outer wall of the scraper moves, thereby realizing the synchronous rapid rotation of the rotating rod, and also driving the connecting sleeve to the bristles to perform rapid self-rotation while being driven by the slider to sweep and wipe the outer wall of the scraper horizontally, and the residue swept out by the bristles is thrown out by the inertia of self-rotation, thereby reducing the amount of residue in the bristles and improving the cleaning rate of the outer wall of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the punch head of the present invention;

[0024] Figure 3 The structure diagram of the sludge cleaning mechanism of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 4 Schematic diagram of the structure of the elastic rope A of the present invention;

[0026] Figure 5 For the present invention Figure 3 A magnified view of point A;

[0027] Figure 6 The structure diagram of the sludge cleaning mechanism of the present invention is shown in FIG. Figure 2 ;

[0028] Figure 7 Schematic diagram of the disassembled structure of the sludge cleaning mechanism of the present invention Figure 1 ;

[0029] Figure 8 Schematic diagram of the disassembled structure of the sludge cleaning mechanism of the present invention Figure 2 ;

[0030] Figure 9 The three-dimensional transformation of the sludge cleaning mechanism of the present invention Figure 1 ;

[0031] Figure 10 The three-dimensional transformation of the sludge cleaning mechanism of the present invention Figure 2 ;

[0032] Figure 11 The three-dimensional transformation of the sludge cleaning mechanism of the present invention Figure 3 ;

[0033] Figure 12 For the present invention Figure 6 Enlarged view of point B;

[0034] Figure 13 The structure of the self-cleaning mechanism of the present invention is shown in FIG. Figure 1 ;

[0035] Figure 14 The structure of the self-cleaning mechanism of the present invention is shown in FIG. Figure 2 ;

[0036] Figure 15 The structure of the self-cleaning mechanism of the present invention is shown in FIG. Figure 3 .

[0037] In the figure: 1 sleeve, 2 punch head, 3 sludge cleaning mechanism, 301 spring A, 302 telescopic rod, 303 clamping block, 304 elastic rope A, 305 magnetic block, 306 round rod, 307 rotating sleeve A, 308 rotating sleeve B, 309 baffle, 310 fine spring, 311 fixed block, 312 connecting plate, 314 scraper, 315 spring B, 4 self-cleaning mechanism, 401 connecting strip, 402 slider, 403 elastic rope B, 404 fixed ball, 405 rotating rod, 406 roller, 407 connecting sleeve, 408 bristles, 5 push rod, 6 cylinder, 7 connecting hole. DETAILED DESCRIPTION

[0038] For example 1, please refer to Figure 1-5 The present invention provides a technical solution: an oil-nitrogen split shock absorber, comprising a punch head 2, a push rod 5 fixedly connected to the top of the punch head 2, a sleeve 1 slidably connected to the outer wall of the punch head 2, and a sludge cleaning mechanism 3 provided inside the sleeve 1;

[0039] The sludge cleaning mechanism 3 includes:

[0040] Spring A301, spring A301 is a spiral strip structure, one end of spring A301 is fixedly connected to the bottom of the punch head 2, the bottom of spring A301 is fixedly connected to a cylinder 6, the inner wall of cylinder 6 is provided with a connecting hole 7, the bottom of the punch head 2 is fixedly connected to a telescopic rod 302, and spring A301 is used to play a buffering and rebounding role on the punch head 2;

[0041] Clamping block 303, which is a plate-like structure. The inner wall of clamping block 303 contacts the outer wall of spring A301. An elastic rope A304 is fixedly connected to the bottom of clamping block 303. One end of elastic rope A304 is fixedly connected to the top of 6. Clamping block 303 is used to clamp spring A301 and scrape it to clean it.

[0042] When an off-road vehicle is traveling on sandy and rocky land in the wild, during the bumpy process, the bumpy connection causes the punch head 2 connected to the vehicle to be pushed, and the inner wall of the sleeve 1 drops and squeezes the spring A301, causing the spring A301 to deform, thereby performing shock absorption and buffering on the vehicle. In the process of vehicle shock absorption and buffering, the deformation process of the spring A301 is first squeezed and shortened, and then it begins to rebound and stretch with its own elastic force. After stretching, it will stretch longer than before due to inertia. In this state, the punch head 2 first drops to squeeze and deform the spring A301 to shorten it, and then when the spring A301 rebounds and begins to stretch, the distance between the bottom of the punch head 2 and the magnetic block 305 begins to lengthen due to the stretching of the spring A301, and the magnetic attraction between the punch head 2 and the magnetic block 305 weakens, and the elastic rope A304 is also stretched accordingly, so that the elastic force of the elastic rope A304 is greater at this time, and the magnetic block 305 and the punch head 2 The magnetic attraction at the bottom is smaller than the elastic tension of the elastic rope A304 at this time, so the elastic rope A304 pulls the clamping block 303 out of the magnetic attraction between the magnetic block 305 and the bottom of the punching head 2, and pulls it downward quickly. When the spring A301 is stretched, the rise angle of the thread is large, so when the clamping block 303 is pulled vertically downward, a component force is generated along the thread direction of the spring A301, and it begins to be pulled by the clamping block 303 and the thread rotates and descends quickly. The scraper 314 on the inner wall of the clamping block 303 comprehensively scrapes the outer wall of the spring A301, and a lot of dust that appears during off-road driving in the wild penetrates into the sleeve 1, while a large amount of dirt, residue and dust adhering to the spring A301 are all scraped off, thereby ensuring the buffering stability of the spring A301 itself and reducing the problem of a series of chemical changes caused by the spring A301 contacting with other substances, which leads to a reduction in the service life of the spring A301.

[0043] For example 2, please refer to Figure 1-11 Based on the first embodiment, the present invention provides a technical solution: a magnetic block 305 is fixedly connected to the top of the clamping block 303, there are two clamping blocks 303, a rotating sleeve B308 is fixedly connected to the outer wall of the clamping block 303 on the left, and a rotating sleeve A307 is fixedly connected to the outer wall of the clamping block 303 on the right.

[0044] The inner walls of the rotating sleeve A307 and the rotating sleeve B308 are rotatably connected with a round rod 306, and baffles 309 are fixedly connected at both ends of the round rod 306. The outer wall of the baffle 309 is fixedly connected with a thin spring 310, and one end of the thin spring 310 is fixedly connected to the outer wall of the rotating sleeve B308, and the other end of the thin spring 310 is fixedly connected to the outer wall of the rotating sleeve A307.

[0045] The inner wall of the clamping block 303 is slidably connected to a scraper 314, the outer wall of the scraper 314 is fixedly connected to a spring B315, one end of the spring B315 is fixedly connected to a connecting plate 312, the outer wall of the connecting plate 312 is fixedly connected to a fixed block 311, the outer wall of the fixed block 311 is fixedly connected to the outer wall of the clamping block 303, and the outer wall of the scraper 314 is provided with a self-cleaning mechanism 4;

[0046] The magnetic block 305 itself is magnetic, and the bottom of the punch head 2 is magnetic. The magnetism of the magnetic block 305 and the bottom of the punch head 2 on the opposite side is magnetism of opposite poles attracting each other.

[0047] When the spring A301 rebounds after stretching, the spring A301 shortens, and the magnetic block 305 approaches the bottom of the punch head 2. The magnetic attraction distance is close, and the elastic force of the elastic rope A304 in the relaxed state is completely smaller than the magnetic attraction force between the magnetic block 305 and the punch head 2. As a result, the elastic rope A304 is magnetically attracted to the outer wall of the spring A301 and rotates upward to return to its original position.

[0048] After the clamping blocks 303 have been used for a long time, the left and right clamping blocks 303 can be bent upwards, and the left and right clamping blocks 303 can be lifted and rotated by rotating the rotating sleeve B308 and the rotating sleeve A307, and the two clamping blocks 303 can be opened. The opened clamping blocks 303 can be naturally separated from the outer wall of the spring A301, and can be disassembled, installed, repaired, and replaced and cleaned in time, ensuring the efficient and convenient automatic cleaning of the spring A301 and improving the cleaning stability of the spring A301. In addition, the scraper 314 on the inner wall of the clamping block 303 is also pushed by the elastic force of the spring B315 to clamp the spring A301, which is suitable for most springs A301 of different sizes and can achieve an efficient cleaning wiping effect.

[0049] For example three, please refer to Figure 1-15 On the basis of Example 1 and Example 2, the present invention provides a technical solution: the self-cleaning mechanism 4 includes a slider 401, the outer wall of the slider 401 is fixedly connected to the outer wall of the scraper 314, the outer wall of the slider 401 is slidably connected to the slider 402, the outer wall of the slider 402 is fixedly connected to the elastic rope B403, and one end of the elastic rope B403 is fixedly connected to the outer wall of the slider 401.

[0050] The outer wall of the slider 402 is rotatably connected to a rotating rod 405 , the outer wall of the rotating rod 405 is fixedly connected to a connecting sleeve 407 , the outer wall of the connecting sleeve 407 is fixedly connected to bristles 408 , and the outer wall of the rotating rod 405 is fixedly connected to a roller 406 .

[0051] The slider 401 is in an arc shape, and the slider 401 and the scraper 314 have the same arc and are concentric circles.

[0052] The sliding block 402 slides from the middle portion of the slider 401 to the ends of the slider 401 due to the inertia of the swinging of the clamping block 303, and the sliding block 402 pulls the elastic rope B403 to deform, and drives the connecting sleeve 407 and the bristles 408 along the outer wall of the slider 401 to sweep the outer wall of the scraper 314, so that all the dirt and dust adhered to the spring A301 by the scraper 314 for a long time are scraped off, and the scraper 314 is brushed more carefully at the scraping edge, thereby further reducing the friction force of the scraper 314 when sliding on the outer wall of the spring A301 due to the residue adhered to the outer wall of the scraper 314, and also improving the cleaning effect of the scraper 314 when scraping the outer wall of the spring A301, thereby avoiding the problem of secondary pollution.

[0053] When the slider 402 slides on the outer wall of the slider 401, the roller 406 on the outer wall of the rotating rod 405 contacts the outer wall of the scraper 314 and rotates and rolls when the outer wall of the scraper 314 moves, thereby driving the rotating rod 405 to rotate rapidly synchronously, and also driving the connecting sleeve 407 and the bristles 408 to rotate rapidly while being driven by the slider 402 to sweep and wipe the outer wall of the scraper 314 horizontally, and the residue swept out by the bristles 408 is thrown out by the inertia of the rotation, thereby reducing the amount of residue in the bristles 408 and improving the cleaning rate of the outer wall of the scraper 314.

[0054] The slider 402 on the scraper 314 in the other clamping block 303 starts from the two ends of the slider 401, slides toward the middle, and pulls another elastic rope B403 to deform, both of which keep the clamping block 303 in the centrifugal direction of the outer wall of the spring A301 rotating, swinging outward and sliding and scraping the outer wall of the slider 401.

[0055] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An oil-nitrogen split shock absorber, comprising a punch head (2), a push rod (5) fixedly connected to the top of the punch head (2), and a sleeve (1) slidably connected to the outer wall of the punch head (2), characterized in that: A sludge cleaning mechanism (3) is provided inside the sleeve (1); The sludge cleaning mechanism (3) comprises: Spring A (301), the spring A (301) is a spiral strip structure, one end of the spring A (301) is fixedly connected to the bottom of the punch head (2), the bottom of the spring A (301) is fixedly connected to a cylinder (6), the inner wall of the cylinder (6) is provided with a connecting hole (7), the bottom of the punch head (2) is fixedly connected to a telescopic rod (302), and the spring A (301) is used to play a buffering and rebounding role on the punch head (2); A clamping block (303), the clamping block (303) is a plate-shaped structure, the inner wall of the clamping block (303) contacts the outer wall of the spring A (301), the bottom of the clamping block (303) is fixedly connected to an elastic rope A (304), one end of the elastic rope A (304) is fixedly connected to the top of the cylinder (6), and the clamping block (303) is used to clamp the spring A (301) and scrape and clean it; The top of the clamping block (303) is fixedly connected to a magnetic block (305), the magnetic block (305) itself is magnetic, the bottom of the punching head (2) is magnetic, and the magnetism of the magnetic block (305) and the bottom of the punching head (2) on the opposite side is magnetism of opposite poles attracting each other.

2. The oil-nitrogen split shock absorber according to claim 1, characterized in that: There are two clamping blocks (303), the outer wall of the clamping block (303) on the left is fixedly connected to a rotating sleeve B (308), and the outer wall of the clamping block (303) on the right is fixedly connected to a rotating sleeve A (307).

3. The oil-nitrogen split shock absorber according to claim 2, characterized in that: The inner walls of the rotating sleeve A (307) and the rotating sleeve B (308) are rotatably connected to a round rod (306), both ends of the round rod (306) are fixedly connected to a baffle (309), the outer wall of the baffle (309) is fixedly connected to a thin spring (310), one end of the thin spring (310) is fixedly connected to the outer wall of the rotating sleeve B (308), and one end of the other thin spring (310) is fixedly connected to the outer wall of the rotating sleeve A (307).

4. The oil-nitrogen split shock absorber according to claim 3, characterized in that: The inner wall of the clamping block (303) is slidably connected to a scraper (314), the outer wall of the scraper (314) is fixedly connected to a spring B (315), one end of the spring B (315) is fixedly connected to a connecting plate (312), the outer wall of the connecting plate (312) is fixedly connected to a fixing block (311), the outer wall of the fixing block (311) is fixedly connected to the outer wall of the clamping block (303), and the outer wall of the scraper (314) is provided with a self-cleaning mechanism (4).

5. The oil-nitrogen split shock absorber according to claim 4, characterized in that: The self-cleaning mechanism (4) comprises a first slider (401), the outer wall of the first slider (401) being fixedly connected to the outer wall of the scraper (314), the outer wall of the first slider (401) being slidably connected to a second slider (402), the outer wall of the second slider (402) being fixedly connected to an elastic rope B (403), one end of the elastic rope B (403) being fixedly connected to the outer wall of the first slider (401).

6. The oil-nitrogen-gas split shock absorber according to claim 5, characterized in that: The outer wall of the second slider (402) is rotatably connected to a rotating rod (405), the outer wall of the rotating rod (405) is fixedly connected to a connecting sleeve (407), the outer wall of the connecting sleeve (407) is fixedly connected to bristles (408), and the outer wall of the rotating rod (405) is fixedly connected to a roller (406).

7. The oil-nitrogen split shock absorber according to claim 6, characterized in that: The first sliding block (401) is in an arc shape, and the arcs of the first sliding block (401) and the scraper (314) are equal and concentric.

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