Straight pipe shock absorber structure

Abstract

The utility model discloses a straight pipe shock absorber structure, which belongs to the technical field of shock absorbers, and comprises a shock absorber shell, a shock absorber structure is arranged at the center inside the shock absorber shell, the shock absorber structure comprises a piston block, and the piston block is arranged at the upper part of the center inside the shock absorber shell. A lower pressing block is arranged in the center of the lower end face of the piston block, a hydraulic oil separation frame is arranged on the lower portion of the outer side of the lower pressing block, a bottom block is arranged in the center of the lower end face of the shock absorber shell, a piston rod is arranged in the center of the lower end face of the piston block, and a shock absorber adjusting structure is arranged on the outer side wall of the shock absorber shell. In addition, the shock absorber can assist in adjusting air pressure balance and optimizing shock absorption damping in real time according to changes of internal pressure, meanwhile, a user can manually adjust shock absorption hardness according to actual road conditions and requirements, self-adaptive adjustment of performance can be achieved, and the shock absorber is simple in structure, convenient to use and high in practicability. The damping effect and the vehicle stability are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to shock absorber technical field, concretely is a straight pipe shock absorber structure. BACKGROUND

[0002] Straight pipe shock absorber is a kind of common shock device, is widely used in car, motorcycle and other mechanical equipment, to reduce the influence of vibration and impact on structure, the main function of shock absorber is to reduce the influence of structure vibration and impact by consuming vibration energy, and its basic principle is to utilize damping force to inhibit the repeated rebound of spring, and effectively dissipate the energy of spring deformation, and the upper end fixed head is connected on the frame of vehicle or other equipment, and the lower end fixed head is connected on the wheel or other moving parts, and the two fixed heads are used to fix shock absorber, and ensure that it remains stable during working process.

[0003] The existing straight pipe shock absorber structure mainly has the following shortcomings:

[0004] The existing straight pipe shock absorber structure has weak adaptability to complex and changeable vibration environment, and when vibration frequency and amplitude change, shock-absorbing performance is greatly reduced, for example, rubber shock pad has good high-frequency vibration damping effect, but has limited low-frequency vibration suppression capacity, and most traditional shock absorbers cannot adjust shock-absorbing performance in real time according to different road conditions, such as maintaining fixed shock-absorbing characteristics on bumpy and smooth road surfaces, which is difficult to meet diversified needs, and as use time is prolonged, aging and fatigue phenomenon occurs, such as rubber material gradually loses elasticity, spring may appear metal fatigue, and elasticity is weakened, so it needs to be replaced regularly, which increases maintenance cost and workload. UTILITY MODEL CONTENTS

[0005] In order to overcome the above defects, the utility model provides a straight pipe shock absorber structure, which solves the problems in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a straight pipe shock absorber structure, comprising: a shock absorber shell, wherein a shock absorber structure is arranged at the inner center of the shock absorber shell;

[0007] The shock absorber structure comprises a piston block, the piston block is arranged at the inner center of the shock absorber shell, a lower pressing block is arranged at the center of the lower end surface of the piston block, a hydraulic oil separation frame is arranged at the lower side of the lower pressing block, and a bottom block is arranged at the center of the lower end surface of the shock absorber shell;

[0008] The center of the lower end surface of the piston block is provided with a piston rod, the outer side wall of the shock absorber shell is provided with a shock absorber adjusting structure, and the center of the upper end surface of the shock absorber shell is provided with a gas shock absorbing structure.

[0009] As a further scheme of the utility model: the shock absorber adjusting structure includes a threaded adjusting groove, the threaded adjusting groove is wound on the upper center of the outer lateral wall of the shock absorber shell, the outer lateral wall of the threaded adjusting groove is provided with an adjusting plate, the lower end surface center of the piston rod is provided with a stable block, and the outer lateral wall of the upper end surface of the stable block is provided with a fixed plate.

[0010] As a further scheme of the utility model: the gas shock absorbing structure includes a connecting pipe, the connecting pipe is arranged at the upper end surface center of the shock absorber shell, the inner center of the connecting pipe is provided with a gas conveying pipe, the gas port is provided with a filter screen, and the lower end surface center of the gas port is provided with a blockage.

[0011] As a further scheme of the utility model: the inner lateral wall of the shock absorber shell is provided with a corrosion-resistant coating, and the outer lateral wall of the piston rod is provided with a wear-resistant coating.

[0012] As a further scheme of the utility model: the material of the shock absorber shell is aluminum alloy.

[0013] As a further scheme of the utility model: the outer lateral wall of the shock absorber shell of the upper end surface of the fixed plate is provided with a compression spring, the lower end surface center of the bottom block is provided with a telescopic pipe, and the telescopic pipe is multi-stage telescopic.

[0014] As a further scheme of the utility model: the inner lateral wall of the shock absorber shell of the hydraulic oil separation frame is provided with a hydraulic oil flow cavity, and the lower center of the two side walls of the hydraulic oil separation frame is provided with a through hole.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The utility model, through the gas conveying pipe, can assist in adjusting the air pressure balance in real time according to the internal pressure change, optimize the shock damping, at the same time, the shock absorber adjusting structure can manually adjust the shock hardness according to the actual road condition and demand, the shock absorber adjusting structure is made soft through adjustment, the gas shock absorbing structure maintains a lower air pressure to provide a comfortable driving experience, when the shock absorber is used in a bumpy rural road or is subjected to impact, the adjusting structure is made hard, the gas shock absorbing structure assists in increasing the air pressure and damping, realizes the performance self-adaptive adjustment, and improves the shock effect and vehicle stability.

[0017] 2. The utility model, through the multi-stage telescopic pipe, can provide different degrees of stretching and compression under different vibration amplitudes, plays a good continuous buffering vibration energy role, protects the overall structure of the shock absorber, avoids component damage, at the same time, the wear-resistant coating material can resist external object collision, prolongs the service life of the shock absorber, and improves the practicality and reliability of the shock absorber. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of a three-dimensional structure of the utility model;

[0019] Figure 2 is a schematic diagram of a three-dimensional structure of the utility model;

[0020] Figure 3 is a schematic diagram of a three-dimensional structure of the utility model;

[0021] Figure 4 is Figure 2 is an enlarged schematic diagram of the middle A.

[0022] In the figure: 1, shock absorber shell; 2, shock absorber adjusting structure; 201, threaded adjusting groove; 202, adjusting plate; 203, stabilizing block; 204, fixed plate; 205, compression spring; 206, telescopic tube; 3, piston rod; 4, gas shock absorbing structure; 401, connecting pipe; 402, gas conveying pipe; 403, filter screen; 404, plug; 5, shock absorber structure; 501, piston block; 502, lower pressing block; 503, hydraulic oil separation frame; 504, hydraulic oil flow cavity; 505, bottom block; 506, through hole; 6, corrosion-resistant coating; 7, wear-resistant coating. DETAILED DESCRIPTION

[0023] The technical scheme of the patent will be further described in detail in combination with specific embodiments.

[0024] As Figures 1-4 shown, the utility model provides a technical scheme:

[0025] A straight pipe shock absorber structure, comprising:

[0026] The shock absorber shell 1 is made of aluminum alloy, the inner side wall of the shock absorber shell 1 is sleeved with a corrosion-resistant coating 6, the inner center of the shock absorber shell 1 is provided with a shock absorber structure 5, the shock absorber structure 5 includes a piston block 501, the piston block 501 is arranged at the inner center of the shock absorber shell 1, the lower end surface of the piston block 501 is provided with a lower pressing block 502, the outer side of the lower pressing block 502 is provided with a hydraulic oil separation frame 503, the lower end surface of the shock absorber shell 1 is provided with a bottom block 505, the outer side wall of the hydraulic oil separation frame 503 is provided with a hydraulic oil flow cavity 504 in the shock absorber shell 1, the two side walls of the hydraulic oil separation frame 503 are provided with through holes 506 at the lower center, the lower end surface of the piston block 501 is provided with a piston rod 3, the outer side wall of the piston rod 3 is sleeved with a wear-resistant coating 7, when the vehicle encounters road undulation during driving, the vibration is first transmitted to the shock absorber, the piston block 501 moves up and down in the shock absorber shell 1, when the piston block 501 is pressed down, the piston block 501 drives the lower pressing block 502 to press down at the same time, at this time, the hydraulic oil in the hydraulic oil flow cavity 504 in the shock absorber shell 1 is extruded, because the two side walls of the hydraulic oil separation frame 503 are provided with through holes 506 at the lower center, part of the hydraulic oil flows and buffers through the through holes 506, the flow of the hydraulic oil and the movement of the piston block 501 preliminarily complete the absorption and preliminary transmission and conversion of the vibration energy.

[0027] The outer side wall of the shock absorber shell 1 is provided with a shock absorber adjusting structure 2, the shock absorber adjusting structure 2 comprises a threaded adjusting groove 201, the threaded adjusting groove 201 is wound at the center of the outer side wall of the shock absorber shell 1, a adjusting plate 202 is sleeved on the outer side wall of the threaded adjusting groove 201, a stable block 203 is arranged at the center of the lower end surface of the piston rod 3, a fixing plate 204 is arranged on the outer side wall of the piston rod 3 at the upper end surface of the stable block 203, a compression spring 205 is sleeved on the outer side wall of the shock absorber shell 1 at the upper end surface of the fixing plate 204, an extension tube 206 is arranged at the center of the lower end surface of the bottom block 505, the extension tube 206 is multi-stage telescopic, the user or the maintenance personnel can change the position of the adjusting plate 202 in the threaded adjusting groove 201 by rotating the adjusting plate 202, so as to adjust the pressure and pre-tightening force of the fixing plate 204 and the compression spring 205 on the piston rod 3, when the adjusting plate 202 is rotated downward, the compression spring 205 is compressed, the pressure on the piston rod 3 and the piston block 501 is increased, at this time, the shock absorbing effect of the whole shock absorber will be hard, on the contrary, the adjusting plate 202 is rotated upward, the compression degree of the compression spring 205 is smaller, the pressure on the piston rod 3 and the piston block 501 is reduced, the shock absorbing effect of the whole shock absorber will be soft, so that the softness and hardness of the shock absorption can be adjusted according to the actual driving conditions of the vehicle and the use demand, and through the multi-stage telescopic extension tube 206, the shock absorber can be adjusted in multiple stages according to the amplitude and frequency of the vibration during the up and down vibration of the vehicle, when the vibration amplitude is large, the extension tube 206 is stretched or compressed by one or two or more stages, so as to play a larger buffering role and avoid damage to the whole shock absorber due to excessive vibration.

[0028] When the vibration amplitude is small, the extension tube 206 is telescopic to a small extent, so as to maintain the stable state of the vehicle.

[0029] The upper end surface of the shock absorber shell 1 is provided with a gas shock absorbing structure 4, the gas shock absorbing structure 4 comprises a connecting pipe 401, the connecting pipe 401 is arranged at the center of the upper end surface of the shock absorber shell 1, a gas conveying pipe 402 is arranged at the center of the inside of the connecting pipe 401, a gas port is arranged at the center of the lower end surface of the connecting pipe 401, a filter screen 403 is arranged at the center of the inside of the gas port, and a plug 404 is arranged at the center of the lower end surface of the gas port, when the internal pressure of the shock absorber changes during the energy absorption or energy release process, the gas conveying pipe 402 at the center of the inside of the connecting pipe 401 can convey gas to adjust the internal gas pressure of the shock absorber, when the shock absorber is compressed and the internal pressure increases sharply, the gas enters the corresponding area through the gas conveying pipe 402 to relieve the excessive pressure, the filter screen 403 at the center of the inside of the gas port at the lower end surface of the connecting pipe 401 can prevent foreign matters such as dust from the outside from entering the inside of the gas shock absorbing structure 4 to interfere with the work, and the plug 404 can control the gas flow and the gas pressure balance to a certain extent, so as to ensure the stability and continuity of the work of the gas shock absorbing structure 4, and the gas shock absorbing structure 4 works cooperatively with the whole straight pipe shock absorber structure 5.

[0030] The working principle of the utility model is:

[0031] When the vehicle encounters road undulation and generates vibration during driving, the vibration is firstly transmitted to the shock absorber, and the piston block 501 moves up and down inside the shock absorber shell 1, when the piston block 501 is pressed down, the piston block 501 drives the lower pressing block 502 to press down simultaneously, at this time, the hydraulic oil on the outer side wall of the hydraulic oil partition frame 503 is extruded by the hydraulic oil in the hydraulic oil flow cavity 504 inside the shock absorber shell 1, since the through hole 506 is arranged at the lower center of the two side walls of the hydraulic oil partition frame 503, part of the hydraulic oil flows and buffers through the through hole 506, the flow of the hydraulic oil and the movement of the piston block 501 preliminarily complete the absorption and preliminary transmission and conversion of the vibration energy, the user or the maintenance personnel can change the position of the adjusting plate 202 on the threaded adjusting groove 201 by rotating the adjusting plate 202, and then adjust the pressure and pre-tightening force of the compression spring 205 on the piston rod 3.

[0032] When the adjusting plate 202 is rotated downward, the compression spring 205 is compressed, the pressure on the piston rod 3 and the piston block 501 is increased, at this time, the shock absorbing effect of the whole shock absorber becomes hard, on the contrary, when the adjusting plate 202 is rotated upward, the compression degree of the compression spring 205 is reduced, the pressure on the piston rod 3 and the piston block 501 is reduced, and the shock absorbing effect of the whole shock absorber becomes soft, so that the hardness of the shock absorption can be adjusted according to the actual driving road condition of the vehicle and the use demand, and through the multi-stage telescopic telescopic pipe 206, the multi-stage telescopic adjustment can be carried out according to the amplitude and frequency of the vibration during the up and down vibration of the vehicle, when the vibration amplitude is large, the telescopic pipe 206 is stretched or compressed by one or two or more stages, so that the buffering effect is larger, and the whole shock absorber is prevented from being damaged due to excessive vibration.

[0033] In addition, when the internal pressure of the shock absorber changes during the energy absorption or energy release process, the gas conveying pipe 402 at the center of the connecting pipe 401 conveys gas to adjust the internal gas pressure of the shock absorber, when the shock absorber is compressed and the internal pressure increases sharply, the gas enters the corresponding area through the gas conveying pipe 402 to relieve the excessive pressure, the filter screen 403 in the gas port at the center of the lower end face of the connecting pipe 401 can prevent the foreign matters such as dust from the outside from entering the gas shock absorbing structure 4 to interfere with the work, and the plug 404 can control the gas flow and the gas pressure balance to a certain extent, so as to ensure the stability and continuity of the work of the gas shock absorbing structure 4, and the whole straight pipe shock absorber structure 5 works cooperatively.

[0034] The preferred embodiments of the utility model are described in detail above, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A straight-tube shock absorber structure, characterized in that, include: A shock absorber housing (1) is provided with a shock absorber structure (5) at the center of the interior of the shock absorber housing (1); The shock absorber structure (5) includes a piston block (501), which is located at the upper center of the inside of the shock absorber housing (1). A pressing block (502) is provided at the center of the lower end face of the piston block (501). A hydraulic oil separator (503) is provided at the lower outer side of the pressing block (502). A bottom block (505) is provided at the center of the lower end face of the shock absorber housing (1). The piston block (501) has a piston rod (3) at the center of its lower end face, the shock absorber housing (1) has a shock absorber adjustment structure (2) on its outer side wall, and the shock absorber housing (1) has an air damping structure (4) at the center of its upper end face on one side.

2. The straight tube shock absorber structure according to claim 1, characterized in that: The shock absorber adjustment structure (2) includes a threaded adjustment groove (201), which is wound around the upper center of the outer wall of the shock absorber housing (1). An adjustment plate (202) is sleeved on the outer wall of the threaded adjustment groove (201). A stabilizing block (203) is provided at the center of the lower end face of the piston rod (3). A fixing plate (204) is provided on the outer wall of the piston rod (3) on the upper end face of the stabilizing block (203).

3. The straight tube shock absorber structure according to claim 1, characterized in that: The air damping structure (4) includes a connecting pipe (401), which is located at the center of the upper end face of the shock absorber housing (1). A gas delivery pipe (402) is provided at the center of the inside of the connecting pipe (401). An air port is provided at one side of the center of the lower end face of the connecting pipe (401). A filter screen (403) is provided at the center of the inside of the air port. A plug (404) is provided at the center of the lower end face of the air port.

4. The straight tube shock absorber structure according to claim 1, characterized in that: The inner wall of the shock absorber housing (1) is covered with a corrosion-resistant coating (6), and the outer wall of the piston rod (3) is covered with a wear-resistant coating (7).

5. The straight tube shock absorber structure according to claim 1, characterized in that: The shock absorber housing (1) is made of aluminum alloy.

6. The straight tube shock absorber structure according to claim 2, characterized in that: A compression spring (205) is fitted on the outer wall of the shock absorber housing (1) on the upper end face of the fixed plate (204), and a telescopic tube (206) is provided at the center of the lower end face of the bottom block (505). The telescopic tube (206) is multi-stage telescopic.

7. The straight tube shock absorber structure according to claim 1, characterized in that: The hydraulic oil separator (503) has a hydraulic oil flow chamber (504) inside the shock absorber housing (1) on the outer side wall, and through holes (506) are provided at the lower center of both sides of the hydraulic oil separator (503).

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