Shock absorber with cooling function

Abstract

The utility model discloses a shock absorber with a cooling function, which relates to the technical field of shock absorbers, aims to solve the problem that the temperature in a piston cylinder is higher when the shock absorber works, and comprises a piston rod and the piston cylinder which are matched with each other, a piston valve is mounted at one end, arranged in the piston cylinder, of the piston rod; a piston rod is arranged in the piston cylinder, a bottom valve is installed at the bottom in the piston cylinder, a compression cavity is further formed in the side wall of the piston cylinder, a blocking plug is further installed on the piston rod, a partition plate is arranged between the blocking plug and the piston valve, the partition plate is fixedly connected to the inner wall of the piston cylinder, and a transition cavity is formed above the partition plate; a transition cavity is formed in the piston cylinder, a spiral pipe is communicated with an inlet of the transition cavity and arranged on the outer side of the piston cylinder in a sleeving mode, an output pipe is communicated with an outlet of the transition cavity, and the spiral pipe and the output pipe are both used for being filled with cooling media.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, and particularly relates to a shock absorber with a temperature reduction function. Background Art

[0002] A shock absorber is a device used to suppress the oscillation when the spring rebounds after absorbing shock and the impact from the road surface. The inside of the shock absorber is filled with oil. There is one or more drill holes on the piston head of the shock absorber. When the shock absorber moves up and down, the oil in the cavity flows back and forth between the upper end cavity and the lower end cavity through the small holes on the piston head. Because the oil is viscous, a large amount of heat will also be released, which is equivalent to converting the kinetic energy generated by the vehicle's bumpiness into heat energy. Shock absorbers are widely used in automobiles to accelerate the attenuation of the vibration of the vehicle frame and the body, so as to achieve the purpose of improving the ride comfort of the vehicle.

[0003] When the shock absorber is in use, the piston rod needs to move repeatedly relative to the piston cylinder, which will cause continuous friction between the piston rod and the piston cylinder. Long-term friction will also generate a large amount of heat, which will lead to the problem of heat accumulation in the piston cylinder due to heat. At the same time, the temperature of the oil in the piston cylinder will also increase when it is squeezed. Therefore, under the influence of various factors, the temperature inside the piston cylinder of the shock absorber will be relatively high during operation. The high-temperature environment is likely to cause problems such as oxidation, fatigue or creep damage in the piston cylinder, greatly reducing the service life of the shock absorber. In addition, the high-temperature environment will also reduce the viscosity of the oil, thereby affecting the shock absorption effect. Summary of the Utility Model

[0004] To solve the above problems, that is, the problem of the high temperature inside the piston cylinder when the shock absorber is working, the utility model provides a shock absorber with a temperature reduction function, which includes a piston rod and a piston cylinder that cooperate with each other. A spring is sleeved on the piston rod, and a piston valve is installed at one end of the piston rod arranged inside the piston cylinder. A bottom valve is installed at the bottom inside the piston cylinder, and a compression cavity is also formed on the side wall of the piston cylinder. A barrier plug is also installed on the piston rod. A partition is arranged between the barrier plug and the piston valve, and the partition is fixedly connected to the inner wall of the piston cylinder. The upper part of the partition is set as a transition cavity. A spiral tube is communicated with the inlet of the transition cavity, and the spiral tube is sleeved on the outside of the piston cylinder. An output tube is communicated with the outlet of the transition cavity, and both the spiral tube and the output tube are used for filling a cooling medium.

[0005] The further setting of the utility model is that one-way input valve one and one-way output valve one are respectively installed at the ends of the spiral tube and the output tube away from the piston cylinder.

[0006] The utility model is further configured as follows: an outward-turned mounting plate is provided on the top end of the piston cylinder, an adjustment plate is threadedly connected to the piston rod, one end of the spring is against the adjustment plate, and the other end of the spring is against the mounting plate.

[0007] The utility model is further configured as follows: a fixing plate is integrally provided at one end of the piston rod facing away from the piston cylinder, the fixing plate is arranged above the adjusting plate, a dust cover is also provided on the spring, and inner flanges are provided at both ends of the dust cover, and the two inner flanges are respectively clamped with the fixing plate and the mounting plate; the inner flanges are made of elastic rubber material.

[0008] The present invention is further configured as follows: a limit block is provided at the top end of the piston cylinder, and a bottom end of the limit block is not higher than the inlet and the outlet.

[0009] The present utility model also proposes a shock absorber with a cooling function, which includes a piston rod and a piston cylinder that cooperate with each other, the piston rod is sleeved with a spring, and a piston valve is installed at one end of the piston rod arranged in the piston cylinder; a bottom valve is installed at the bottom of the piston cylinder, and a compression chamber is also provided on the side wall of the piston cylinder, characterized in that: a blocking plug is also installed on the piston rod, a partition is provided between the blocking plug and the piston valve, the partition is fixedly connected to the inner wall of the piston cylinder, and a transition chamber is provided above the partition; a cooling chamber is sleeved on the outer side of the piston cylinder, the cooling chamber is connected with the connecting port of the transition chamber, an input port is provided at the bottom end of the cooling chamber, and an output port is provided at the top end of the cooling chamber for circulating cooling medium.

[0010] The present invention is further configured as follows: the input port and the output port are respectively equipped with an input one-way valve 2 and an output one-way valve 2.

[0011] The beneficial effects of the utility model are:

[0012] 1. Through the cooperation of the barrier plug and the transition chamber, the cooling medium can be absorbed and circulated in the spiral tube and the output pipe, thereby achieving the effect of cooling the piston cylinder. That is, the cooling medium and the piston chamber exchange heat, and the heat generated in the piston cylinder is replaced by the cooling medium and taken away by the cooling medium, thereby avoiding the ambient temperature in the piston cylinder from being too high, prolonging the service life of the shock absorber, and ensuring the viscosity of the oil in the piston cylinder to ensure the shock absorption effect.

[0013] 2. By arranging a cooling cavity on the outside of the piston cylinder, the cooling effect can be improved, and the piston cylinder can be further cooled more effectively to avoid the ambient temperature inside the piston cylinder being too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The structural schematic diagram of the present utility model is shown.

[0015] Figure 2 The structural schematic diagram after removing the dust cover is shown.

[0016] Figure 3 shown Figure 1 The sectional view in the A-A direction.

[0017] Figure 4 The structural schematic diagram of the dust cover is shown.

[0018] Figure 5 The structural schematic diagram of the piston rod is shown.

[0019] Figure 6 The structural schematic diagram of Embodiment 2 is shown.

[0020] Reference numerals: 1, piston rod; 11, piston valve; 12, barrier plug; 13, adjusting plate; 14, fixing plate; 2, piston cylinder; 21, bottom valve; 22, compression chamber; 23, transition chamber; 24, working chamber; 25, oil chamber; 26, mounting plate; 27, limiting block; 28, cooling chamber; 29, partition plate; 3, spring; 4, spiral tube; 41, input check valve I; 5, output pipe; output check valve I; 6, input check valve II; 7, dust cover; 71, inward flanging; 8, output check valve II. Specific embodiments

[0021] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.

[0022] Embodiment 1

[0023] Referring to Figure 1 , Figure 2 , this embodiment proposes a shock absorber with a temperature reduction function, including a piston rod 1 and a piston cylinder 2. The piston rod 1 and the piston cylinder 2 cooperate with each other, that is, one end of the piston rod 1 extends into the piston cylinder 2. A spring 3 is coaxially sleeved on the piston rod 1, and the spring 3 is arranged outside the piston cylinder 2. A piston valve 11 is installed at one end of the piston rod 1 arranged in the piston cylinder 2. The piston valve 11 is a combined valve capable of generating damping force, which is composed of a damping valve and a check valve. Since the piston valve 11 is an externally purchased part in this application and its structure is prior art, it will not be elaborated here.

[0024] Inside the piston cylinder 2, a bottom valve 21 is also provided. The bottom valve 21 is installed at the bottom of the piston cylinder 2. The bottom valve 21 is also a combined valve capable of generating a damping force, which is composed of a damping valve and a check valve. Since the bottom valve 21 is also an off-the-shelf component in this application and its structure is all prior art, it will not be elaborated here.

[0025] Reference Figure 3 、 Figure 5 , a compression chamber 22 is also formed on the side wall of the piston cylinder 2. A barrier plug 12 is also installed on the piston rod 1. The barrier plug 12 is arranged inside the piston cylinder 2. The barrier plug 12 is arranged at an appropriate distance from the piston valve 11. The specific distance is adjusted appropriately according to the shock absorber model. A partition plate 29 is arranged between the barrier plug 12 and the piston valve 11. The partition plate 29 is welded to the inner wall of the piston cylinder 2. The piston cylinder 2 above the partition plate 29 is set as a transition chamber 23. The barrier plug 12 is arranged in the transition chamber 23. The piston cylinder 2 below the partition plate 29 is separated into a working chamber 24 and an oil chamber 25 by the piston valve 11. The working chamber 24 is arranged above the oil chamber 25.

[0026] The working chamber 24 and the oil chamber 25 are communicated through the piston valve 11. When the piston rod 1 is pressed down, the oil in the oil chamber 25 will flow through the piston valve 11 into the working chamber 24. On the contrary, the oil in the working chamber 24 will flow reversely into the oil chamber 25. The bottom end of the oil chamber 25 is communicated with the compression chamber 22 through the bottom valve 21. When the piston rod 1 is pressed down, the oil in the oil chamber 25 will also flow through the bottom valve 21 into the compression chamber 22. On the contrary, the oil in the compression chamber 22 will flow reversely into the oil chamber 25.

[0027] An inlet and an outlet are formed on the transition chamber 23. A spiral tube 4 is communicated with the inlet. The spiral tube 4 is sleeved on the outside of the piston cylinder 2. An output tube 5 is communicated with the outlet. The ends of the spiral tube 4 and the output tube 5 away from the piston cylinder 2 are communicated to a cooling device for filling a cooling medium into the spiral tube 4 and recovering the cooling medium flowing out of the output tube 5. Input check valve one 41 and output check valve one 51 are respectively installed at the ends of the spiral tube 4 and the output tube 5 away from the piston cylinder 2. The input check valve one 41 installed on the spiral tube 4 is used for filling the cooling medium into the transition chamber 23, and the output check valve one 51 installed on the output tube 5 is used for outputting the cooling medium in the transition chamber 23.

[0028] When the piston rod 1 presses downwards, the piston rod 1 will drive the barrier plug 12 to move accordingly, and then the volume of the transition chamber 23 will increase, thereby achieving the purpose of pumping the cooling medium into the transition chamber 23 through the spiral tube 4. When the cooling medium passes through the spiral tube 4, it can exchange heat with the piston cylinder 2, and transfer the heat generated in the piston cylinder 2 into the cooling medium. When the piston rod 1 rebounds upwards, the volume of the transition chamber 23 will decrease. Then, under the extrusion of the barrier plug 12, the cooling medium in the transition chamber 23 will be extruded from the output pipe 5, thereby discharging the cooling medium after heat exchange is completed, and completing the cooling process of the piston cylinder 2.

[0029] It should be noted that a limit block 27 is fixedly connected to the top end inside the piston cylinder 2. The piston rod 1 is arranged through the limit block 27, and the bottom end of the limit block 27 is not higher than the inlet and outlet. This can prevent the piston rod 1 from blocking the inlet and outlet when it rebounds upwards, and also prevent the barrier plug 12 from contacting the top end of the piston cylinder 2, resulting in the problem that the transition chamber 23 cannot be formed.

[0030] An outwardly turned mounting plate 26 is provided at the top end of the piston cylinder 2. An adjusting plate 13 is threadedly connected to the piston rod 1. An adjusting cap is integrally provided on the surface of the adjusting plate 13 facing away from the piston cylinder 2. The adjusting plate 13 is threadedly connected to the piston rod 1, that is, rotating the adjusting plate 13 can make the adjusting plate 13 move along the direction of the piston rod 1. One end of the spring 3 abuts against the adjusting plate 13, and the other end of the spring 3 abuts against the mounting plate 26. Thus, by adjusting the mounting plate 26, the damping effect of the spring 3 itself can be realized. That is, adjusting the adjusting plate 13 upwards can make the spring 3 stretch, and the initial elastic force of the spring 3 decreases. While adjusting the adjusting plate 13 downwards can make the spring 3 compressed, and the initial elastic force of the spring 3 increases.

[0031] Reference Figure 3 、 Figure 4 At the end of the piston rod 1 away from the piston cylinder 2, a fixing plate 14 is integrally welded. The fixing plate 14, the adjusting plate 13, and the mounting plate 26 are set to have the same diameter. The fixing plate 14 is arranged above the adjusting plate 13, thereby realizing the limiting effect on the adjusting plate 13. A dust-proof cover 7 is coaxially sleeved on the spring 3. Both ends of the dust-proof cover 7 are integrally provided with inwardly turned edges 71. The inwardly turned edges 71 are made of elastic rubber material. The two inwardly turned edges 71 are respectively clamped with the fixing plate 14 and the mounting plate 26 to cover the dust-proof cover 7 outside the spring 3, thereby protecting the spring 3 and the piston rod 1, and preventing dust, sand, or other sundries from splashing into the spring 3, which may affect the operation of the spring 3 or the piston rod 1. The dust-proof cover 7 is a telescopic corrugated dust-proof cover 7. Thus, when the shock absorber works, the dust-proof cover 7 can stretch or compress accordingly to meet the attitude requirements during the operation of the shock absorber.

[0032] It should be noted that since the inward flanging 71 is made of elastic rubber material, when a certain force is applied to the dust cover 7, the inward flanging 71 can be deformed, and then the inward flanging 71 can be removed downward from the fixing plate 14, so that the adjusting plate 13 is exposed for adjusting the initial elastic force of the spring 3.

[0033] In summary, through the cooperation of the blocking plug 12 and the transition cavity 23 in this embodiment, the suction of the cooling medium can be realized to flow in the spiral tube 4 and the output tube 5, and then the effect of cooling the piston cylinder 2 can be achieved, that is, the cooling medium exchanges heat with the piston cavity, and the heat generated in the piston cylinder 2 is replaced into the cooling medium and taken away by the cooling medium, avoiding the too high ambient temperature in the piston cylinder 2, improving the service life of the shock absorber, and ensuring the viscosity of the oil in the piston cylinder 2 to ensure the shock absorption effect.

[0034] Embodiment 2

[0035] Reference Figure 6 , this embodiment proposes a shock absorber with a cooling function, including a piston rod 1 and a piston cylinder 2. The piston rod 1 and the piston cylinder 2 cooperate with each other, that is, one end of the piston rod 1 extends into the piston cylinder 2. A spring 3 is coaxially sleeved on the piston rod 1. The spring 3 is arranged outside the piston cylinder 2. One end of the piston rod 1 arranged in the piston cylinder 2 is equipped with a piston valve 11. The piston valve 11 is a combined valve capable of generating damping force, which is composed of a damping valve and a one-way valve. Since the piston valve 11 is an externally purchased part in this application and the structure is all prior art, it will not be elaborated here.

[0036] A bottom valve 21 is further arranged inside the piston cylinder 2. The bottom valve 21 is installed at the bottom of the piston cylinder 2. The bottom valve 21 is also a combined valve capable of generating damping force, which is composed of a damping valve and a one-way valve. Since the bottom valve 21 is also an externally purchased part in this application and the structure is also all prior art, it will not be elaborated here.

[0037] A compression cavity 22 is further opened on the side wall of the piston cylinder 2. A blocking plug 12 is also installed on the piston rod 1. The blocking plug 12 is arranged inside the piston cylinder 2. The blocking plug 12 is equidistant from the piston valve 11. A partition plate 29 is arranged between the blocking plug 12 and the piston valve 11. The partition plate 29 is welded to the inner wall of the piston cylinder 2. The piston cylinder 2 above the partition plate 29 is set as a transition cavity 23. The blocking plug 12 is arranged in the transition cavity 23. The piston cylinder 2 below the partition plate 29 is separated into a working cavity 24 and an oil cavity 25 by the piston valve 11. The working cavity 24 is arranged above the oil cavity 25.

[0038] The working chamber 24 and the oil chamber 25 are connected through the piston valve 11. When the piston rod 1 is pressed down, the oil in the oil chamber 25 will flow through the piston valve 11 into the working chamber 24, and vice versa, the oil in the working chamber 24 will flow reversely into the oil chamber 25. The bottom end of the oil chamber 25 is connected to the compression chamber 22 through the bottom valve 21. When the piston rod 1 is pressed down, the oil in the oil chamber 25 will also flow through the bottom valve 21 into the compression chamber 22, and vice versa, the oil in the compression chamber 22 will flow reversely into the oil chamber 25.

[0039] Two communication ports are provided on the transition chamber 23. A cooling chamber 28 is coaxially sleeved outside the piston cylinder 2, and the cooling chamber 28 is communicated with the communication ports, that is, the cooling chamber 28 is communicated with the transition chamber 23 through the communication ports. An input port is provided at the bottom end of the cooling chamber 28 for filling a cooling medium into the cooling chamber 28, and an output port is provided at the top end of the cooling chamber 28 for outputting the cooling medium in the cooling chamber 28, so that the cooling medium can circulate in the cooling chamber 28 to achieve the purpose of cooling and temperature reduction of the piston cylinder 2.

[0040] An input check valve II 6 and an output check valve II 8 are respectively installed on the input port and the output port. The input check valve II 6 installed on the input port is used for filling the cooling medium into the cooling chamber 28, and the output check valve II 8 installed on the output port is used for outputting the cooling medium in the cooling chamber 28.

[0041] When the piston rod 1 is pressed down, the piston rod 1 will drive the barrier plug 12 to move accordingly, and then the volume of the transition chamber 23 will increase. Then, the cooling medium in the cooling chamber 28 will be drawn into the transition chamber 23 through the communication port. At this time, new cooling medium will also be drawn into the cooling chamber 28 through the input port. The cooling medium in the cooling chamber 28 can exchange heat with the piston cylinder 2, and transfer the heat generated in the piston cylinder 2 to the cooling medium. When the piston rod 1 rebounds upward, the volume of the transition chamber 23 will decrease. Then, the cooling medium in the transition chamber 23 will be extruded from the transition chamber 23 through the communication hole. At this time, the cooling medium in the cooling chamber 28 will also be extruded from the output port, so as to discharge the cooling medium after heat exchange is completed and complete the temperature reduction process of the piston cylinder 2.

[0042] It should be noted that a limit block 27 is fixedly connected to the top end inside the piston cylinder 2. The piston rod 1 passes through the limit block 27, and the bottom end of the limit block 27 is not higher than the communication port. This can prevent the piston rod 1 from blocking the communication port when it rebounds upward, and also prevent the barrier plug 12 from contacting the top end of the piston cylinder 2, resulting in the problem that the transition chamber 23 cannot be formed.

[0043] At the top of the piston cylinder 2, there is an outward-turned mounting plate 26. A regulating plate 13 is threadedly connected to the piston rod 1. An adjusting cap is integrally provided on the surface of the regulating plate 13 facing away from the piston cylinder 2. The regulating plate 13 is threadedly connected to the piston rod 1, that is, rotating the regulating plate 13 can make the regulating plate 13 move along the direction of the piston rod 1. One end of the spring 3 abuts against the regulating plate 13, and the other end of the spring 3 abuts against the mounting plate 26. Thus, by adjusting the mounting plate 26, the damping effect of the spring 3 itself can be realized. That is, by adjusting the regulating plate 13 upward, the spring 3 can be stretched, and the initial elastic force of the spring 3 decreases. While adjusting the regulating plate 13 downward, the spring 3 can be compressed, and the initial elastic force of the spring 3 increases.

[0044] At the end of the piston rod 1 facing away from the piston cylinder 2, a fixing plate 14 is integrally welded. The fixing plate 14, the regulating plate 13, and the mounting plate 26 are set to have the same diameter. The fixing plate 14 is arranged above the regulating plate 13, so as to realize the limiting effect on the regulating plate 13. A dust-proof cover 7 is coaxially sleeved on the spring 3. At both ends of the dust-proof cover 7, there are integrally provided inward-turned edges 71. The inward-turned edges 71 are made of elastic rubber material. The two inward-turned edges 71 are respectively clamped with the fixing plate 14 and the mounting plate 26 to cover the dust-proof cover 7 outside the spring 3, so as to realize the protection of the spring 3 and the piston rod 1, and prevent dust, sand and other sundries from splashing into the spring 3, thus affecting the operation of the spring 3 or the piston rod 1. The dust-proof cover 7 is a telescopic corrugated dust-proof cover 7. Thus, when the shock absorber works, the dust-proof cover 7 can be elongated or compressed accordingly to meet the attitude requirements during the operation of the shock absorber.

[0045] It should be noted that since the inward-turned edge 71 is made of elastic rubber material, applying a certain force to the dust-proof cover 7 can cause the inward-turned edge 71 to deform, and then the inward-turned edge 71 can be removed downward from the fixing plate 14, so that the regulating plate 13 is exposed for adjusting the initial elastic force of the spring 3.

[0046] In summary, in this embodiment, by sleeving a cooling cavity 28 outside the piston cylinder 2, the cooling effect can be better, and further, a more effective temperature reduction effect on the piston cylinder 2 can be realized, and the environmental temperature inside the piston cylinder 2 can be prevented from being too high.

[0047] Although the present invention has been described with reference to the preferred embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

[0048] In the description of the present utility model, terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0049] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0050] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article, or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent in these processes, articles, or devices / equipment.

[0051] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A shock absorber with a temperature reduction function, comprising a piston rod (1) and a piston cylinder (2) that cooperate with each other. A spring (3) is sleeved on the piston rod (1). One end of the piston rod (1) disposed inside the piston cylinder (2) is provided with a piston valve (11). A bottom valve (21) is installed at the bottom inside the piston cylinder (2). A compression chamber (22) is further formed on the side wall of the piston cylinder (2). It is characterized in that: A barrier plug (12) is further installed on the piston rod (1). A partition plate (29) is arranged between the barrier plug (12) and the piston valve (11). The partition plate (29) is fixedly connected to the inner wall of the piston cylinder (2). The upper part of the partition plate (29) is set as a transition chamber (23); a spiral pipe (4) is communicated with the inlet of the transition chamber (23). The spiral pipe (4) is sleeved outside the piston cylinder (2). The outlet of the transition chamber (23) is communicated with an output pipe (5). Both the spiral pipe (4) and the output pipe (5) are used for filling a cooling medium; an input one-way valve (41) and an output one-way valve (51) are respectively installed at the ends of the spiral pipe (4) and the output pipe (5) away from the piston cylinder (2).

2. The shock absorber with a cooling function according to claim 1, wherein: An outward-turned mounting plate (26) is arranged at the top end of the piston cylinder (2). An adjusting plate (13) is threadedly connected to the piston rod (1). One end of the spring (3) abuts against the adjusting plate (13), and the other end of the spring (3) abuts against the mounting plate (26).

3. The shock absorber with a cooling function according to claim 2, characterized in that: One end of the piston rod (1) away from the piston cylinder (2) is integrally provided with a fixing plate (14). The fixing plate (14) is arranged above the adjusting plate (13). A dust-proof cover (7) is further sleeved on the spring (3). Both ends of the dust-proof cover (7) are provided with inward-turned edges (71). The two inward-turned edges (71) are respectively clamped with the fixing plate (14) and the mounting plate (26); the inward-turned edges (71) are made of an elastic rubber material.

4. The shock absorber with a temperature reduction function according to claim 1, characterized in that: A limiting block (27) is arranged at the top end inside the piston cylinder (2). The bottom end of the limiting block (27) is not higher than the inlet and the outlet.

5. A shock absorber with a temperature reduction function, comprising a piston rod (1) and a piston cylinder (2) that cooperate with each other. A spring (3) is sleeved on the piston rod (1), and a piston valve (11) is installed at one end of the piston rod (1) disposed inside the piston cylinder (2). A bottom valve (21) is installed at the bottom inside the piston cylinder (2), and a compression chamber (22) is further formed on the side wall of the piston cylinder (2), characterized in that: A barrier plug (12) is further installed on the piston rod (1). A partition plate (29) is arranged between the barrier plug (12) and the piston valve (11). The partition plate (29) is fixedly connected to the inner wall of the piston cylinder (2). The upper part of the partition plate (29) is set as a transition chamber (23); a cooling chamber (28) is sleeved outside the piston cylinder (2). The communication port of the cooling chamber (28) is communicated with the transition chamber (23). An input port is opened at the bottom end of the cooling chamber (28), and an output port is opened at the top end of the cooling chamber (28) for circulating the cooling medium; an input one-way valve (6) and an output one-way valve (8) are respectively installed at the input port and the output port.

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