Shock absorber and vehicle

Abstract

The invention discloses a shock absorber and a vehicle, and the shock absorber comprises a bag skin, the top of the bag skin is suitable for being connected with a vehicle body end; the bottom of the bag skin is connected to the fixing body, and the fixing body is suitable for being connected with a wheel end; the piston is installed outside the fixing body, the bag skin is suitable for being supported on the fixing body through the piston, and the position, in the transverse direction, of the piston relative to the fixing body is adjustable. According to the shock absorber, the position of the piston of the shock absorber is adjustable, the abutting contact position of the bag skin and the piston can be adjusted, then the lateral force of the shock absorber can be flexibly adjusted, and therefore when the lateral force is large, the position of the piston can be adjusted to reduce the lateral force of the shock absorber; therefore, abrasion to the piston rod in the damping process of the damper is reduced, and the structural reliability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a shock absorber and a vehicle having the shock absorber. Background Art

[0002] In related technologies, the traditional McPherson suspension is subjected to force from the road surface, and the external force is shared by the coil spring and shock absorber respectively. However, the air spring cannot withstand lateral force, and all lateral force can only be borne by the shock absorber. As a result, the piston rod of the McPherson air spring strut shock absorber assembly at this stage is worn, causing the shock absorber to malfunction and have quality problems, resulting in the loss of shock absorber function and easily causing safety accidents. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a shock absorber that can flexibly adjust the position of a piston to reduce the lateral force received by the shock absorber, thereby improving the structural safety of the shock absorber.

[0004] According to an embodiment of the present invention, the shock absorber includes: a bladder skin, the top of which is suitable for being connected to the vehicle body end; a fixed body, the bottom of the bladder skin is connected to the fixed body, and the fixed body is suitable for being connected to the wheel end; a piston, the piston is installed outside the fixed body, the bladder skin is suitable for being supported on the fixed body through the piston, and the piston is adjustable in the lateral direction relative to the fixed body.

[0005] According to the shock absorber of the embodiment of the present invention, the position of the shock absorber's piston is adjustable, so that the position of the bladder skin and the piston in contact can be adjusted, and the lateral force of the shock absorber can be flexibly adjusted. Therefore, when the lateral force is large, the piston position can be adjusted to reduce the lateral force of the shock absorber, thereby reducing the wear on the piston rod during the shock absorber's vibration reduction process and improving the structural reliability.

[0006] According to the shock absorber of some embodiments of the present invention, a pushing member is provided between the piston and the fixed body, and the pushing member is used to drive the piston to move relative to the fixed body.

[0007] According to some embodiments of the shock absorber of the present invention, the pushing member is configured as an airbag, the airbag is connected to an air supply source, the air supply source is used to selectively supply air to the airbag, and the airbag is pressed between the piston and the fixed body.

[0008] According to some embodiments of the shock absorber of the present invention, there are multiple airbags, and the multiple airbags are connected to the air supply source through an air pipe, and a gas distribution valve is provided in the air pipe.

[0009] According to some embodiments of the present invention, the shock absorber further includes a force detection member and a control member, wherein the control member is electrically connected to the force detection member, the force detection member is used to detect the lateral force of the shock absorber, and the control member is used to control the pushing member to drive the piston according to the lateral force.

[0010] According to the shock absorber of some embodiments of the present invention, the piston is constructed as an annular member and is sleeved outside the fixed body. A group of pushing members is respectively provided between the lateral sides of the fixed body and the piston, and the control member is used to control the two groups of pushing members respectively.

[0011] The shock absorber according to some embodiments of the present invention further includes a piston guide rod, wherein the piston guide rod is provided through the fixed body;

[0012] Among them, a connector is provided on the top of the bladder skin, which is used to be connected to the end of the vehicle body. The end of the piston guide rod is passed through the connector. A group of force detection parts is respectively provided between the lateral sides of the piston guide rod and the connector. The two groups of force detection parts are arranged in one-to-one correspondence with the two groups of pushing parts.

[0013] According to the shock absorber of some embodiments of the present invention, the connecting body is formed with a receiving groove, which is used to receive the end of the piston guide rod, and the two groups of force detection components are respectively provided on two oppositely distributed inner walls of the receiving groove in a one-to-one correspondence.

[0014] According to the shock absorber of some embodiments of the present invention, the force detection member is constructed as a stress detection plate, which is fitted in the accommodating groove and is used for pressing contact with the end of the piston guide rod.

[0015] According to the shock absorber of some embodiments of the present invention, a plurality of the pushing members are provided in each group, and the plurality of pushing members are distributed in sequence in the axial direction of the piston.

[0016] According to some embodiments of the present invention, the vibration absorber comprises a fixing portion, a main body portion, and a base portion, wherein the fixing portion and the base portion are respectively connected to two ends of the main body portion, and the base portion is configured to protrude radially outward relative to the main body portion.

[0017] The bottom of the bag skin is connected to the outside of the fixing part, the pushing member is provided between the piston and the main body, and the piston is supported on the side of the base part facing the fixing part.

[0018] According to some embodiments of the present invention, the shock absorber further includes an elastic shock absorber, which is sleeved outside the bladder skin and the piston, and one end of the elastic shock absorber is connected to the top of the bladder skin and the other end is connected to the fixed body.

[0019] The present invention also provides a vehicle.

[0020] A vehicle according to an embodiment of the present invention includes the shock absorber described in any one of the above embodiments.

[0021] The advantages of the vehicle and the shock absorber described above over the prior art are the same and will not be described in detail here.

[0022] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0024] Figure 1 1 is a schematic structural diagram of a shock absorber according to an embodiment of the present invention;

[0025] Figure 2 2 is a schematic diagram of the operation of the shock absorber according to an embodiment of the present invention.

[0026] Reference numerals:

[0027] Shock absorber 100,

[0028] The airbag skin 1, the piston 2, the connecting body 3, the accommodating groove 31, the fixing part 41, the main body 42, the base part 43, the airbag 5, the piston guide rod 6, the stress detection piece 7, the elastic vibration damping part 8, the gas distribution valve 91, and the air pipe 92. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] Unless otherwise specified, the front-to-back direction in this application is the longitudinal direction of the vehicle, that is, the X direction; the left-right direction is the lateral direction of the vehicle, that is, the Y direction; and the up-down direction is the vertical direction of the vehicle, that is, the Z direction.

[0033] Reference below Figure 1 A shock absorber 100 according to an embodiment of the present invention is described. The position of the piston 2 of the shock absorber 100 is adjustable so that the supporting position of the bladder skin 1 on the piston 2 is adjustable, which can be used to adjust the lateral force so that the piston 2 is adjusted in the direction of smaller lateral force, thereby reducing the lateral force of the shock absorber 100, reducing the wear of the piston rod of the shock absorber 100, and improving the structural safety of the shock absorber 100.

[0034] It should be noted that during actual installation, the shock absorber 100 is mounted on the inner side of the wheel and is tilted relative to the vertical. The upper end of the shock absorber 100 is fixed relative to the vehicle body, while the lower end of the shock absorber 100 is fixed relative to the wheel. Furthermore, the shock absorber 100 is tilted downward and outward from top to bottom. Consequently, when the weight of the vehicle body is supported on the wheel via the shock absorber 100, a certain lateral force is exerted. The shock absorber 100 of the present invention can adjust this lateral force to reduce the actual lateral force and minimize structural wear.

[0035] like Figure 1As shown, a shock absorber 100 according to one embodiment of the present invention includes a bladder 1, a fixed body, and a piston 2. The top of the bladder 1 is adapted to be connected to the vehicle body. The top of the bladder 1 can be connected to the vehicle body directly or through other intermediate structures to ensure that the top of the bladder 1 is relatively fixed to the vehicle body.

[0036] The bottom of bladder skin 1 is connected to a fixed body, which is adapted to be connected to the wheel end, thereby securing the bottom of bladder skin 1 relative to the wheel end. This allows bladder skin 1 to absorb wheel end vibrations when deforming vertically, thereby reducing vibrations transmitted to the vehicle body, lowering the vibration amplitude of the vehicle body and improving vehicle passenger comfort. It should be noted that a piston rod is connected to the top of bladder skin 1, which passes through the fixed body, allowing piston 2 and the fixed body to slide along the piston rod when the wheel end vibrates.

[0037] The piston 2 is mounted outside the fixed body, and the bladder 1 is adapted to be supported on the fixed body via the piston 2. It should be noted that when the weight of the vehicle body acts on the bladder 1, the bladder 1 tilts downward and supports the outside of the piston 2. For example, the middle portion of the bladder 1 tilts outward and downward and deforms to the outside of the piston 2, sliding up and down on the outside of the piston 2 in response to wheel vibrations, thereby achieving a vibration-damping effect. In other words, during the vibration reduction process of the shock absorber 100, the middle portion of the bladder 1 tilts outward and supports the outside of the piston 2, exerting a supporting force on the outside of the piston 2.

[0038] The lateral position of the piston 2 relative to the fixed body is adjustable, that is, the installation position of the piston 2 can be flexibly adjusted. Therefore, when the bladder skin 1 is turned outward and supported on the outside of the piston 2, as the position of the piston 2 is adjusted, the point where the bladder skin 1 contacts the piston 2 also gradually moves with the position of the piston 2. In this way, the angle between the vertical direction and the line connecting the position point of the upper end of the bladder skin 1 and the position point where the bladder skin 1 contacts the piston 2 can be flexibly adjusted. The angle determines the lateral force applied to the shock absorber 100. For example, the smaller the angle between the line and the vertical direction, the smaller the lateral force applied to the shock absorber 100, and the larger the angle between the line and the vertical direction, the greater the lateral force applied to the shock absorber 100.

[0039] Therefore, when the lateral force of the shock absorber 100 is large, the piston 2 can be adjusted to move in the lateral direction so that the piston 2 can adjust the support position of the bladder skin 1, so that the angle between the position point of the upper end of the bladder skin 1 and the line between the position point supported by the bladder skin 1 and the piston 2 and the vertical direction is reduced, thereby reducing the lateral force, thereby reducing the friction force on the piston rod, reducing the structural wear of the piston rod, and improving the structural reliability of the shock absorber 100.

[0040] According to the shock absorber 100 of the embodiment of the present invention, by setting the position of the piston 2 of the shock absorber 100 to be adjustable, the position of the pressing contact between the bladder skin 1 and the piston 2 can be adjusted, and the lateral force of the shock absorber 100 can be flexibly adjusted. Therefore, when the lateral force is large, the position of the piston 2 can be adjusted to reduce the lateral force of the shock absorber 100, thereby reducing the wear of the piston rod during the vibration reduction process of the shock absorber 100 and improving the structural reliability.

[0041] In some embodiments, a pusher is provided between the piston 2 and the fixed body. The pusher is used to drive the piston 2 to move relative to the fixed body. That is, the pusher pushes the piston 2 to adjust its position, thereby adjusting the lateral force. The pusher can be manually driven, mechanically driven, or fluid-driven. In other words, the configuration of the pusher is flexible and can be flexibly configured according to actual requirements.

[0042] Therefore, by setting a pushing member, the position of the piston 2 can be actively adjusted to feedback-adjust the lateral force according to the actual size of the lateral force. That is, when the actual lateral force of the shock absorber 100 is large, the lateral force can be actively reduced through the pushing member to achieve on-demand adjustment of the lateral force, meet the activeness of the lateral force adjustment, and enhance the user experience.

[0043] In some embodiments, the pushing member is constructed as an airbag 5, and the position of the piston 2 can be adjusted by inflating and deflating the airbag 5. For example, when the airbag 5 is inflated, the outer wall of the airbag 5 can squeeze and push the piston 2 to move, so that the piston 2 moves and realizes lateral force adjustment.

[0044] The airbag 5 is connected to an air supply source, which selectively supplies air to the airbag 5. Specifically, when the airbag 5 is required to propel the piston 2, air can be inflated into the airbag 5 through the air supply source, enabling the airbag 5 to propel the piston 2 and thereby adjust the position of the piston 2. Thus, by actively controlling the connection between the airbag 5 and the air supply source, the position of the piston 2 can be actively adjusted. This structure is simple, and the adjustment method is easy to implement.

[0045] In addition, the airbag 5 is pressed between the piston 2 and the fixed body, that is, during actual installation, the airbag 5 can be installed between the piston 2 and the fixed body, wherein the fixed body is fixed relative to the wheel end. When the airbag 5 is inflated, the outer peripheral wall of the airbag 5 is pressed between the inner wall of the piston 2 and the outer side surface of the fixed body. As the volume of the airbag 5 changes, the airbag 5 can push the piston 2 to move relative to the fixed body, thereby realizing the adjustment of the lateral force.

[0046] In some embodiments, there are multiple airbags 5, and each of the multiple airbags 5 is connected to the air supply source through the air tube 92. In other words, the position of the piston 2 can be adjusted by the multiple airbags 5. The number of airbags 5 can be one, two, three, or more.

[0047] Therefore, multiple airbags 5 can adjust the piston 2 from different positions respectively to make the piston 2 move in different directions, such as at least one airbag 5 is used to push the piston 2 to move inward in the lateral direction of the vehicle, and at least one airbag 5 is used to push the piston 2 to move outward in the lateral direction of the vehicle. In this way, two-way adjustment of the airbag 5 in the lateral direction of the vehicle can be achieved, which is conducive to adjusting the piston 2 to different positions in the lateral direction, and thus realizing active adjustment of the lateral force.

[0048] Of course, in actual settings, two or more airbags 5 can be set to adjust the piston 2 outward, or two or more airbags 5 can be set to adjust the piston 2 inward. In this way, the pushing force on the piston 2 can be increased, and at least two airbags 5 on the same side can serve as backup for each other to avoid one of the airbags 5 being damaged and unable to effectively adjust the piston 2, thereby improving the reliability of the adjustment of the piston 2.

[0049] A gas distribution valve 91 is provided in the gas pipe 92. This means that the gas distribution valve 91 can distribute the gas in the gas pipe 92 to flow toward different airbags 5. In other words, when adjusting the position of the piston 2, the gas distribution valve 91 can be actively adjusted to achieve gas distribution, thereby controlling the different airbags 5 to push the piston 2. For example, when adjusting the piston 2 to move inward, the gas distribution valve 91 can be used to inflate the gas toward the inner airbag 5, causing the inner airbag 5 to push the piston 2 inward. When adjusting the piston 2 to move outward, the gas distribution valve 91 can be used to inflate the gas toward the outer airbag 5, causing the outer airbag 5 to push the piston 2 outward.

[0050] In actual design, the gas distribution valve 91 can be constructed as a two-position, three-way valve to flexibly switch the gas flow to inflate the inner or outer airbag 5. This provides a simple structure and easy control. Of course, the gas distribution valve 91 can also be constructed in other types to achieve different inflation control methods for the airbag 5. Specifically, the gas distribution valve 91 can be a solenoid valve for easy electronic control, which increases the response speed of the gas distribution valve 91 and facilitates the inflation speed of the airbag 5.

[0051] In some embodiments, the shock absorber 100 also includes a force detection component and a control component. The control component is electrically connected to the force detection component. The force detection component is used to detect the lateral force of the shock absorber 100. The control component is used to control the pushing component to drive the piston 2 according to the lateral force, so as to automatically adjust the position of the piston 2 and realize automatic adjustment of the lateral force.

[0052] In other words, when the vehicle is running, the lateral force applied to the shock absorber 100 can be actively detected by the force detection component, and the force detection component transmits the detected actual lateral force to the control component, which can analyze the actual lateral force. For example, if a set lateral force is preset in the control component, the control component can compare the actual lateral force with the set lateral force. When the actual lateral force exceeds the set lateral force, the actual lateral force is too large. At this time, the lateral force needs to be adjusted, and the control component can actively control the pushing component so that the pushing component pushes the piston 2 to move in the direction of reducing the lateral force, thereby realizing automatic adjustment of the lateral force.

[0053] In other words, the force detection member, the control member, and the push member cooperate to detect the lateral force of the shock absorber 100 in real time and form active feedback adjustment. In this way, when adjusting the lateral force, no user operation is required. The force detection member and the control member cooperate to achieve automatic adjustment, reducing the inconvenience of user operation and improving the user experience.

[0054] In some embodiments, the piston 2 is constructed as an annular member and is sleeved outside the fixed body. A clearance exists between the piston 2 and the fixed body in the lateral direction, allowing the piston 2 to move inward or outward relative to the fixed body as a whole. A set of pushers is provided between the lateral sides of the fixed body and the piston 2. Specifically, a set of pushers is provided between the lateral inner side of the fixed body and the outer portion of the piston 2 to push the piston 2 outward, while a set of pushers is provided between the lateral inner side of the fixed body and the inner portion of the piston 2 to push the piston 2 inward.

[0055] Among them, the control member is used to control the two groups of pushers respectively, that is, when the shock absorber 100 is subjected to an inward lateral force and the lateral force is large, the control member can control a group of pushers located on the outside of the fixed body to push the piston 2 to move outward to reduce the inward lateral force. Similarly, when the shock absorber 100 is subjected to an outward lateral force and the lateral force is large, the control member can control a group of pushers located on the inside of the fixed body to push the piston 2 to move inward. In this way, automatic adjustment of the lateral force can be achieved, and the piston 2 can be actively controlled both inward and outward by the control member, and the control method is simple and easy to implement.

[0056] like Figure 1As shown, both groups of pushing members can be constructed as airbags 5, with each group comprising two airbags 5. Specifically, the two airbags 5 located inside the fixed body, when inflated by the control member, can push the piston 2 inward, while the two airbags 5 located outside the fixed body, when inflated by the control member, can push the piston 2 outward. This provides a simple structure and convenient control. It should be noted that while controlling the inflation of the inner airbag 5, the outer airbag 5 can also be controlled to be deflated, and vice versa, while controlling the inflation of the outer airbag 5, the inner airbag 5 can also be controlled to be deflated, thereby increasing the efficiency of adjusting the position of the piston 2.

[0057] In some embodiments, the shock absorber 100 further includes a piston guide rod 6, which is inserted into a fixed body. A connector 3 is provided at the top of the bladder skin 1, which is used to connect to the vehicle body end, and the end of the piston guide rod 6 is inserted into the connector 3. That is, the bladder skin 1 is connected between the connector 3 and the fixed body, and when the bladder skin 1 is everted, it is supported outside the piston 2. At the same time, the upper end of the piston guide rod 6 is connected to the connector 3, and when the wheel end moves relative to the vehicle body end, the piston 2 and the fixed body move along the piston guide rod 6, causing a portion of the bladder skin 1 to deform and slide along the piston 2. Thus, by providing the piston guide rod 6, the piston 2 and the fixed body can stably reciprocate relative to the vehicle body end.

[0058] The connector 3 can be connected to the vehicle body end via connecting bolts or other structural members, so that the connector 3 and the vehicle body end can be connected as a whole and can be flexibly disassembled and assembled. A plurality of connecting bolts can be provided to ensure a stable connection state.

[0059] Therefore, by providing the piston guide rod 6, it can be ensured that the bladder skin 1 of the shock absorber 100 can stably reciprocate and turn outward, thereby forming a continuous vibration reduction and buffering effect and improving the reliability of the vibration reduction function.

[0060] Furthermore, a set of force detection members is provided between the two lateral sides of the piston guide rod 6 and the connector 3, and the two sets of force detection members are provided in a one-to-one correspondence with the two sets of pushers. That is, a set of force detection members is provided between the lateral inner side of the piston guide rod 6 and the connector 3, while a set of force detection members is provided between the lateral outer side of the piston guide rod 6 and the connector 3. It should be noted that when the shock absorber 100 is subjected to a lateral force, the lateral force is transmitted between the piston guide rod 6 and the connector 3. Thus, the lateral force of the shock absorber 100 can be detected by the force detection members on both sides of the piston guide rod 6, and the inward lateral force and the outward lateral force can be detected by different force detection members, respectively, which helps to improve the accuracy of lateral force detection.

[0061] In some embodiments, the connector 3 is formed with a receiving groove 31, which is used to receive the end of the piston guide rod 6. The two sets of force detection components are respectively provided on the two inner walls of the receiving groove 31 that are opposite to each other. Figure 1As shown, a receiving groove 31 is provided at the upper end of the connecting body 3, the piston guide rod 6 is passed through the connecting body 3, and extends from the bottom wall of the receiving groove 31 into the receiving groove 31, and an elastic body can be arranged between the connecting body 3 and the piston guide rod 6 for force transmission and buffering.

[0062] At the same time, if Figure 1 As shown, force detection components are provided between the left side wall of the accommodating groove 31 and the end of the piston guide rod 6, and between the right side wall of the accommodating groove 31 and the end of the piston guide rod 6. In this way, when the piston guide rod 6 tilts relative to the connecting body 3, the force detection component will be squeezed, so that the force detection component can detect the tilting force applied to the piston guide rod 6, and feedback the lateral force applied to the shock absorber 100, thereby ensuring the accuracy of the lateral force detection, and making it easier for the control component to adjust the lateral force.

[0063] In some embodiments, the force detection member is constructed as a stress detection sheet 7, and the stress detection sheet 7 is fitted into the receiving groove 31, such as Figure 1 As shown, stress detection plates 7 are provided on both the left and right sides of the receiving groove 31, and are used to press against the end of the piston guide rod 6. When the piston guide rod 6 tilts relative to the connector 3 or the vehicle body, one of the stress detection plates 7 on either side is compressed, outputting a lateral force signal for the corresponding side, thereby enabling lateral force detection. This simple structure and easy-to-implement detection method are thus implemented.

[0064] Among them, the stress detection piece 7 has a small structural size and can be directly installed between the inner wall of the accommodating groove 31 and the piston guide rod 6. The required installation space is small, and there is no need to make large adjustments to the connector 3 or the piston guide rod 6, making installation more convenient.

[0065] In some embodiments, multiple pushing members are provided in each group, and the multiple pushing members are distributed in sequence in the axial direction of the piston 2, so that the multiple pushing members can push at multiple positions in the axial direction of the same side of the piston 2, that is, the pushing members on the same side of the fixed body can be provided in multiple positions, so that the multiple pushing members can push the piston 2 at the same time, so as to increase the pushing force and enhance the pushing effect.

[0066] Thus, the number of pushers in each group can be set to two, three or more, such as Figure 1 As shown, the pushing member is constructed as an airbag 5, and there are two airbags 5 on the same side. The two airbags 5 are distributed in sequence in the axial direction of the piston 2, so that the two airbags 5 push the piston 2 together to reliably adjust the position of the piston 2.

[0067] In some embodiments, the fixed body includes a fixing portion 41, a main body 42, and a base 43. The fixing portion 41 and the base 43 are respectively connected to the ends of the main body 42. The fixing portion 41, the main body 42, and the base 43 are relatively fixed, that is, the fixing portion 41, the main body 42, and the base 43 can move axially along the piston guide rod 6 as a whole. In actual connection, the base 43 can be connected to the wheel end, so that when the wheel end moves relative to the vehicle body end, it can drive the base 43 and the entire fixed body to move.

[0068] Among them, the base portion 43 is constructed to protrude radially outward relative to the main body portion 42, the bottom of the bladder skin 1 is connected to the outside of the fixed portion 41, and a pushing member is provided between the piston 2 and the main body portion 42. The piston 2 is supported on the side of the base portion 43 facing the fixed portion 41. In this way, the piston 2 is installed on the fixed portion 41 and the base portion 43, and moves along the piston guide rod 6 together with the fixed body.

[0069] Specifically, if Figure 1 As shown, the fixing portion 41 is connected to the upper end of the main body 42 and radially protrudes outward from the outer side of the upper end of the main body 42. The bottom of the bladder skin 1 can be fixedly mounted outside the fixing portion 41 so that the fixing portion 41 can drive the bottom of the bladder skin 1 to move up and down. At the same time, the base portion 43 is connected to the lower end of the main body 42 and radially protrudes outward from the outer side of the lower end of the main body 42. In this way, the fixing portion 41 and the base portion 43 can axially limit the piston 2, preventing the piston 2 from axially dislodging relative to the fixed body. At the same time, the side of the base portion 43 facing the fixing portion 41 is configured as a support surface, and the piston 2 is supported on the support surface. The piston 2 can move radially along the support surface, thereby accurately adjusting the lateral force.

[0070] In some embodiments, the shock absorber 100 also includes an elastic shock absorber 8, which is mounted outside the bladder skin 1 and the piston 2. One end of the elastic shock absorber 8 is connected to the top of the bladder skin 1 and the other end is connected to the fixed body. In this way, while performing air pressure buffering through the bladder skin 1, the elastic shock absorber 8 can also use its own elastic force to perform vibration reduction and buffering, thereby enhancing the buffering effect of the shock absorber 100.

[0071] Specific as Figure 1 As shown, the elastic vibration damping member 8 is constructed as a vibration damping spring, and the vibration damping spring is arranged outside the bladder skin 1. Therefore, the bladder skin 1 and the vibration damping spring are jointly distributed between the vehicle body end and the wheel end, thereby greatly enhancing the vibration damping force and further improving the driving stability of the vehicle.

[0072] The working principle of the shock absorber 100 of the present invention in practical application is described below with reference to some specific embodiments. Figure 2As shown, during the driving process of the vehicle, the shock absorber 100 reduces vibration through reciprocating action, and the stress detection piece 7 detects the lateral force of the shock absorber 100 in real time, wherein, when the lateral force of the shock absorber 100 is greater than the set value, such as when the lateral force is greater than 150N, the stress detection piece 7 detects a pressure signal and outputs the signal to the control component, and the control component controls the gas distribution valve 91 according to the pressure signal, so that the gas distribution valve 91 selectively connects the air pipe 92 with the air supply source, that is, the air supply source outputs gas to the airbag 5 on the corresponding side through the air pipe 92, so that the airbag 5 drives and adjusts the position of the piston 2, thereby realizing the adjustment of the lateral force. After the lateral force is adjusted, the stress detection piece 7 detects that the lateral force is less than the set value. At this time, the gas distribution valve 91 can be controlled to close, ending the lateral force adjustment.

[0073] The present invention also proposes a vehicle comprising a shock absorber 100 according to any of the above-described embodiments. By providing an adjustable position for the piston 2 of the shock absorber 100, the position of the contact between the bladder skin 1 and the piston 2 can be adjusted, thereby flexibly adjusting the lateral force of the shock absorber 100. Thus, when the lateral force is large, the position of the piston 2 can be adjusted to reduce the lateral force of the shock absorber 100, thereby reducing wear on the piston rod during the shock absorption process of the shock absorber 100 and improving structural reliability. In this way, while the vehicle is driving, a high-speed, low-drag attitude can be achieved, thereby improving vehicle endurance. Furthermore, for low-speed, high-attitude attitudes, the vehicle's passability is improved, and the height adjustment range of the McPherson suspension is increased.

[0074] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0075] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A shock absorber, characterized in that: include: A bladder skin (1), the top of which is adapted to be connected to an end of a vehicle body; A fixed body, to which the bottom of the bladder skin (1) is connected, and the fixed body is suitable for being connected to the wheel end; A piston (2) is installed outside the fixed body, the bladder skin (1) is suitable for being supported on the fixed body through the piston (2), and the position of the piston (2) relative to the fixed body in the lateral direction is adjustable.

2. The shock absorber according to claim 1, characterized in that A pushing member is provided between the piston (2) and the fixed body, and the pushing member is used to drive the piston (2) to move relative to the fixed body.

3. The shock absorber according to claim 2, characterized in that The pushing member is constructed as an airbag (5), which is connected to an air supply source. The air supply source is used to selectively supply air to the airbag (5), and the airbag (5) is pressed between the piston (2) and the fixed body.

4. The shock absorber according to claim 3, characterized in that There are multiple air bags (5), and all of the multiple air bags (5) are connected to the gas supply source through an air pipe (92). A gas distribution valve (91) is provided in the air pipe (92).

5. The shock absorber according to claim 2, characterized in that It also includes a force detection member and a control member, wherein the control member is electrically connected to the force detection member, the force detection member is used to detect the lateral force of the shock absorber, and the control member is used to control the push member to drive the piston (2) according to the lateral force.

6. The shock absorber according to claim 5, characterized in that The piston (2) is constructed as an annular member, and the piston (2) is sleeved outside the fixed body. A group of pushing members is respectively provided between the two lateral sides of the fixed body and the piston (2), and the control member is used to respectively control the two groups of pushing members.

7. The shock absorber according to claim 6, characterized in that It also includes a piston guide rod (6), and the piston guide rod (6) is inserted into the fixed body; Wherein, a connector (3) is provided on the top of the bladder skin (1), and the connector (3) is used to be connected to the end of the vehicle body. The end of the piston guide rod (6) is passed through the connector (3), and a group of force detection members are respectively provided between the lateral sides of the piston guide rod (6) and the connector (3), and the two groups of force detection members are arranged in a one-to-one correspondence with the two groups of pushing members.

8. The shock absorber according to claim 7, characterized in that The connecting body (3) is formed with a receiving groove (31), and the receiving groove (31) is used to receive the end of the piston guide rod (6). The two groups of force detection components are respectively arranged on two oppositely distributed inner walls of the receiving groove (31) in a one-to-one correspondence.

9. The shock absorber according to claim 8, characterized in that The force detection member is constructed as a stress detection piece (7), which is fitted into the accommodating groove (31) and is used for pressing and contacting the end of the piston guide rod (6).

10. The shock absorber according to claim 6, characterized in that A plurality of the pushing members are provided in each group, and the plurality of pushing members are distributed in sequence in the axial direction of the piston (2).

11. The shock absorber according to claim 2, characterized in that The fixing body comprises a fixing portion (41), a main body portion (42) and a base portion (43), wherein the fixing portion (41) and the base portion (43) are respectively connected to two ends of the main body portion (42), and the base portion (43) is configured to protrude radially outward relative to the main body portion (42); The bottom of the bag skin (1) is connected to the outside of the fixed part (41), the pushing member is provided between the piston (2) and the main body (42), and the piston (2) is supported on the side of the base part (43) facing the fixed part (41).

12. The shock absorber according to claim 1, characterized in that It also includes an elastic vibration damper (8), which is sleeved outside the bladder skin (1) and the piston (2), one end of the elastic vibration damper (8) is connected to the top of the bladder skin (1) and the other end is connected to the fixed body.

13. A vehicle, characterized in that: The invention comprises the vibration absorber according to any one of claims 1 to 12.

Images