Chassis and vehicle having the same

Abstract

The utility model discloses a kind of chassis and vehicle with it.Belongs to vehicle technical field, the chassis includes vehicle body, guide arm, lifting elastic member and height detection device, one end of guide arm is rotatably connected with vehicle body, the other end of guide arm is connected with vehicle body by lifting elastic member, height detection device includes sensor, connecting arm and connecting rod, sensor is fixedly connected with vehicle body, the rotating shaft of connecting arm is fixedly connected with sensor, connecting rod is rotatably connected with guide arm and connecting arm respectively, wherein, in the length direction of connecting arm, connecting rod is selectively rotatably connected at any position of connecting arm, the connecting position of connecting rod and connecting arm can be adjusted to meet assembly requirement, without customizing design connecting rod according to specific vehicle model, it is favorable to improve the versatility of height detection device.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and more specifically, to a chassis and a vehicle having the same chassis. Background Technology

[0002] In related technologies, height sensors in the vehicle chassis are used to detect the height of the vehicle body. The height sensor is usually connected between the chassis body and the guide arm. Since the position of the guide arm connecting the height sensor is different for different vehicle models, the height sensor needs to be customized according to the specific vehicle model, making it difficult to achieve universal adaptation across vehicle models. Utility Model Content

[0003] This invention aims to at least partially solve one of the aforementioned technical problems in the prior art. To this end, this invention proposes a chassis that improves the versatility of its height detection device.

[0004] This utility model also proposes a vehicle having the above-mentioned chassis.

[0005] The chassis according to an embodiment of the present invention includes: a body, a guide arm, a lifting elastic element, and a height detection device. One end of the guide arm is rotatably connected to the body; the other end of the guide arm is connected to the body through the lifting elastic element. The height detection device includes a sensor, a connecting arm, and a connecting rod. The sensor is fixedly connected to the body, the connecting arm is fixedly connected to the rotating shaft of the sensor, and the connecting rod is rotatably connected to both the guide arm and the connecting arm. In the length direction of the connecting arm, the connecting rod is selectively rotatably connected to any position on the connecting arm.

[0006] According to the chassis of this utility model embodiment, its height detection device includes a sensor, a connecting arm, and a connecting rod. In the length direction of the connecting arm, the connecting rod is selectively rotatably connected to any position of the connecting arm. The assembly requirements can be met by adjusting the connection position between the connecting rod and the connecting arm. There is no need to customize the connecting rod according to the specific vehicle model, which helps to improve the versatility of the height detection device.

[0007] According to some embodiments of the present invention, the connecting arm has a plurality of adjustment holes arranged at intervals along its length, and one of the adjustment holes is rotatably connected to the connecting rod.

[0008] According to some embodiments of the present invention, among the plurality of adjustment holes, the adjustment hole that is furthest from the sensor is rotatably connected to the connecting rod.

[0009] According to some embodiments of the present invention, the connecting arm has a guide groove extending along its length direction; the height detection device further includes: a slider and a locking device, the connecting rod is rotatably connected to the slider, the locking device is fixedly connected to the slider, the slider slides in cooperation with the guide groove along the length direction of the connecting arm, and the locking device selectively locks in cooperation with the connecting arm.

[0010] According to some embodiments of this utility model, the length of the connecting arm is greater than or equal to 500mm.

[0011] According to some embodiments of this utility model, the connecting arm is made of stainless steel or aluminum alloy.

[0012] According to some embodiments of the present invention, the chassis further includes a sensor bracket, the sensor bracket being fixedly connected to the vehicle body via a first fastener, and the sensor being fixedly mounted on the sensor bracket.

[0013] According to some embodiments of the present invention, the chassis further includes: a connecting rod bracket, the connecting rod bracket being fixedly connected to the guide arm via a second fastener, and the connecting rod being rotatably connected to the connecting rod bracket.

[0014] According to some embodiments of this utility model, the lifting elastic element is constructed as an air spring.

[0015] The vehicle according to another embodiment of the present invention includes the chassis of the above embodiment.

[0016] According to an embodiment of the present invention, the vehicle chassis height detection device includes a sensor, a connecting arm, and a connecting rod. In the length direction of the connecting arm, the connecting rod is selectively rotatably connected to any position of the connecting arm. The assembly requirements can be met by adjusting the connection position between the connecting rod and the connecting arm. There is no need to customize the connecting rod according to a specific vehicle model, which helps to improve the versatility of the height detection device.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a front view of the chassis according to an embodiment of the present utility model; Figure 2 yes Figure 1 Enlarged view at point A; Figure 3 This is a top view of the chassis according to an embodiment of the present utility model; Figure 4 yes Figure 3 Enlarged view at point B; Figure 5 This is a bottom view of the chassis according to an embodiment of the present utility model; Figure 6 yes Figure 5 Enlarged view at point C.

[0019] Figure label: 1. Body; 2. Guide arm; 21. Connecting seat; 3. Lifting elastic component; 4. Height detection device; 41. Sensor; 42. Connecting arm; 421. Adjustment hole; 43. Connecting rod; 43. First connecting end; 431. Second connecting end; 432. Sensor bracket; 5. Linkage bracket; 6. Chassis 10. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the terms "length", "upper", "lower", "left", "right", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The following is combined Figures 1-6A detailed description is given of the chassis 10 and the vehicle having the chassis according to an embodiment of the present invention.

[0025] Reference Figure 1 and Figure 2 As shown, the chassis 10 according to an embodiment of the present utility model includes: a body 1, a guide arm 2, a lifting elastic element 3, and a height detection device 4. One end of the guide arm 2 is rotatably connected to the body 1, and the other end of the guide arm 2 is connected to the body 1 through the lifting elastic element 3. The height detection device 4 includes a sensor 41, a connecting arm 42, and a connecting rod 43. The sensor 41 is fixedly connected to the body 1, the connecting arm 42 is fixedly connected to the rotating shaft of the sensor 41, and the connecting rod 43 is rotatably connected to the guide arm 2 and the connecting arm 42 respectively. In the length direction of the connecting arm 42, the connecting rod 43 is selectively rotatably connected to any position of the connecting arm 42.

[0026] It should be noted that the front end of the guide arm 2 is rotatably connected to the vehicle body 1, and the rear end of the guide arm 2 is connected to the vehicle body 1 through the lifting elastic element 3. The guide arm 2 can be an inclined straight arm or a bent arm with a bend in the middle. The guide arm 2 can be set with a bend shape according to the shape of its surrounding components to avoid interference between the guide arm 2 and other components when it moves.

[0027] Sensor 41 can be an angle sensor. The lifting elastic element 3 can be used to drive the body 1 to rise and fall. Specifically, when the lifting elastic element 3 extends to drive the body 1 to rise, the angle between the body 1 and the guide arm 2 increases. The body 1 can drive the sensor 41 to rise synchronously. The guide arm 2 can pull the connecting arm 42 through the connecting rod 43 so that the connecting arm 42 rotates clockwise around the axis of the sensor 41. Figure 2 When the lifting elastic element 3 rotates in the direction of (a), and the body 1 descends by shortening the driving force 3, the angle between the body 1 and the guide arm 2 decreases. The body 1 can drive the sensor 41 to descend synchronously. The guide arm 2 can push the connecting arm 42 through the connecting rod 43, so that the connecting arm 42 rotates counterclockwise around the axis of the sensor 41. Figure 2 During the lifting and lowering process of the vehicle body 1 (in the direction of b), the sensor 41 can detect the angle change of the connecting arm 42 and obtain the lifting and lowering height of the vehicle body 1 based on the angle change value, so that the vehicle body 1 can be lifted and lowered to the preset height. In other words, the height detection device 4 can measure the lifting and lowering height of the vehicle body 1 in real time to avoid the lifting and lowering height of the vehicle body 1 being inaccurate. At the same time, the lifting and lowering height of the vehicle body 1 directly reflects the extension and retraction length of the lifting elastic element 3, and the extension and retraction length of the lifting elastic element 3 can also be obtained through the height detection device 4.

[0028] It should be noted that the correspondence between the angle change of the connecting arm 42, the lifting height of the vehicle body 1, and the extension length of the lifting elastic element 3 can be obtained through experimental calibration to obtain a correspondence table. Each angle change of the connecting arm 42 corresponds to a lifting height of the vehicle body 1 and an extension length of the lifting elastic element 3. For example, when the connecting arm 42 rotates 0.1° clockwise around the axis of the sensor 41, the vehicle body 1 rises by 1mm, and the lifting elastic element 3 extends by 1mm. As another example, when the connecting arm 42 rotates 0.1° counterclockwise around the axis of the sensor 41, the vehicle body 1 falls by 1mm, and the lifting elastic element 3 shortens by 1mm.

[0029] It is understood that the connecting rod 43 may have a first connecting end 431 and a second connecting end 432. The first connecting end 431 is rotatably connected to the connecting arm 42, and the second connecting end 432 is rotatably connected to the guide arm 2. In the length direction of the connecting arm 42, the first connecting end 431 is selectively rotatably connected to any position on the connecting arm 42. That is, in... Figure 1 and Figure 2 In the left and right direction, the first connecting end 431 can be selectively connected to different positions of the connecting arm 42. Since the length of the connecting rod 43 is fixed, for different vehicle models, when the chassis 10 is assembled, after the second connecting end 432 of the connecting rod 43 is connected to the guide arm 2, the connection position of the first connecting end 431 and the connecting arm 42 can be adjusted so that the connecting arm 42 is parallel to the horizontal plane, that is, the swing angle of the connecting arm 42 is 0. Since the horizontal position of the connecting arm 42 is easy to identify and inspect, the relative position of the connecting arm 42 and the sensor 41 can be ensured to be consistent during calibration and assembly, so that the sensor 41 can accurately detect the lifting height of the vehicle body 1 when the vehicle body 1 is lifted. There is no need to customize the connecting rod 43 according to the specific vehicle model, which is conducive to improving the versatility of the height detection device 4 and saving design costs.

[0030] In addition, during chassis 10 assembly, connecting arm 42 can also be assembled in a manner that is nearly parallel to the horizontal plane or has a large angle with the horizontal plane. In different vehicle models, the connection position of the second connecting end 432 of connecting rod 43 and the vehicle body 1 in the front-rear direction may differ. By adjusting the connection position of the first connecting end 431 and connecting arm 42, connecting rod 43 can be connected to the vehicle body 1 and connecting arm 42 respectively without changing its length specifications. This is beneficial to improving the versatility of height detection device 4 and making height detection device 4 adaptable to different vehicle models.

[0031] According to the embodiment of the present utility model, the chassis 10 has a height detection device 4 including a sensor 41, a connecting arm 42 and a connecting rod 43. In the length direction of the connecting arm 42, the connecting rod 43 is selectively rotatably connected to different positions of the connecting arm 42. The assembly requirements can be met by adjusting the connection position between the connecting rod 43 and the connecting arm 42. There is no need to customize the design of the connecting rod 43 according to the specific vehicle model, which is beneficial to improving the versatility of the height detection device 4.

[0032] In some embodiments of this utility model, reference is made to Figure 2 As shown, the connecting arm 42 has multiple adjustment holes 421 arranged at intervals along its length. One of the adjustment holes 421 is rotatably connected to the connecting rod 43. That is, the first connecting end 431 of the connecting rod 43 can be selectively rotatably connected to any one of the adjustment holes 421. By connecting the first connecting end 431 of the connecting rod 43 to different adjustment holes 421 respectively, the position of the first connecting end 431 can be flexibly adjusted, thereby realizing the selective connection of the connecting rod 43 to the connecting arm 42 with adjustable position.

[0033] The first connecting end 431 of the connecting rod 43 is constructed as a ball seat. The ball head can be used to rotatably connect the first connecting end 431 with the connecting arm 42. Specifically, the ball head includes a connected head and a rod. The head is inserted into the ball seat and rotatably connected with the ball seat. The end of the rod away from the head has an adjustment hole 421 and has an external thread. A nut can be screwed onto the rod. Tightening the nut can fix the rod to the connecting arm 42, thereby realizing the rotatable connection between the first connecting end 431 and the connecting arm 42.

[0034] In some embodiments of this utility model, reference is made to Figure 2 As shown, among the multiple adjustment holes 421, the adjustment hole 421 with the furthest distance from the sensor 41 is rotatably connected to the connecting rod 43. That is, the first connecting end 431 of the connecting rod 43 is connected to the adjustment hole 421 with the furthest distance from the sensor 41 in the connecting arm 42. When the vehicle body 1 is raised or lowered, the rotation radius of the connecting arm 42 around the rotation axis of the sensor 41 can be increased, thereby reducing the swing angle of the connecting arm 42, increasing the measurement stroke of the connecting arm 42 on the lifting height of the vehicle body 1 and the extension length of the lifting elastic element 3, reducing the risk of the connecting arm 42 breaking at the connection point with the sensor 41, and facilitating the sensor 41 to stably and reliably detect the lifting height of the vehicle body 1.

[0035] For example, when the lifting elastic element 3 is constructed as an air spring (airbag), if the air spring leaks and fails, the length of the lifting elastic element 3 and the height of the vehicle body 1 will decrease rapidly and by a large amount. At this time, the guide arm 2 pushes the connecting arm 42 through the connecting rod 43, so that the connecting arm 42 rotates counterclockwise around the axis of the sensor 41. Since the first connecting end 431 of the connecting rod 43 is connected to the adjustment hole 421, which is farthest from the sensor 41 in the connecting arm 42, the rotation radius of the connecting arm 42 around the axis of the sensor 41 is large, and the swing angle and speed of the connecting arm 42 are small, so as to reduce the stress change at the connection between the connecting arm 42 and the sensor 41 and prevent the rotation angle of the sensor 41 axis from being too large and exceeding its range.

[0036] In some other embodiments of this utility model not shown in the figures, the connecting arm 42 has a guide groove extending along its length direction, and the height detection device 4 further includes: a slider and a locking device. The connecting rod 43 is rotatably connected to the slider, and the locking device is fixedly connected to the slider. In the length direction of the connecting arm 42, the slider slides in cooperation with the guide groove, and the locking device selectively locks in cooperation with the connecting arm 42.

[0037] Understandably, when the lock is unlocked, the slider can slide at any position in the guide groove, which can realize the stepless adjustment of the connection position between the first connecting end 431 of the connecting rod 43 and the connecting arm 42, so that the second connecting end 432 can be adapted to the connection position on the guide arm 2 of different models, which can effectively improve the versatility of the height detection device 4.

[0038] When the locking device engages with the connecting arm 42, it prevents the slider from sliding, thereby fixing the connection position of the connecting rod 43 and the connecting arm 42 after assembly, preventing the position of the connecting rod 43 from drifting, and preventing the height detection device 4 from becoming inaccurate.

[0039] The locking device can be a screw, with the shank of the screw passing through the connecting arm 42 and threadedly engaging with the slider. When the screw is tightened, the head of the screw abuts against the connecting arm 42, thereby locking the slider and preventing it from sliding. When the screw is loosened, the head of the screw separates from the connecting arm 42, thereby unlocking the slider, which can then slide at any position within the guide groove.

[0040] In some embodiments of this utility model, the length of the connecting arm 42 is greater than or equal to 500mm. For example, the length of the connecting arm 42 can be 500mm, 600mm, 700mm, etc. The longer length of the connecting arm 42 increases the rotation radius of the connecting arm 42 around the rotation axis of the sensor 41 when the vehicle body 1 is raised or lowered, thereby reducing the swing angle of the connecting arm 42 and reducing the risk of breakage at the connection between the connecting arm 42 and the sensor 41. In addition, the longer length of the connecting arm 42 provides sufficient space in the length direction of the connecting arm 42 to increase the adjustment holes 421 at different positions, which is beneficial to further improve the versatility of the height detection device 4.

[0041] In some embodiments of this utility model, the connecting arm 42 is made of stainless steel or aluminum alloy, so that the connecting arm 42 is constructed as a metal connecting arm 42, which is beneficial to improve the structural strength of the connecting arm 42, can improve the load-bearing capacity of the connecting arm 42, can effectively reduce the risk of the connecting arm 42 breaking at extreme angles (e.g., ±45°), and is beneficial to improve the durability and reliability of the height detection device 4.

[0042] In some embodiments of this utility model, reference is made to Figures 3-6 As shown, the chassis 10 also includes a sensor bracket 5, which is fixedly connected to the vehicle body 1 by a first fastener. The sensor 41 is fixed to the sensor bracket 5. The installation position of the sensor 41 can be adjusted by changing the model of the sensor bracket 5 so that the height detection device 4 can be installed on different vehicle models.

[0043] Specifically, the first fastener can be a bolt and a nut. Both the sensor bracket 5 and the vehicle body 1 can have through holes. When installing the sensor bracket 5, the bolt can first pass through the through holes of the sensor bracket 5 and the vehicle body 1, and then the nut can be screwed onto the bolt and tightened to fix the sensor bracket 5 to the vehicle body 1. The sensor bracket 5 can be removed from the vehicle body 1 by unscrewing the nut from the bolt, so as to facilitate the replacement of the sensor bracket 5.

[0044] The first fastener can also be a screw. The sensor bracket 5 can have a through hole, and the vehicle body 1 can have a threaded hole. When installing the sensor bracket 5, the screw can pass through the through hole of the sensor bracket 5 and engage with the threaded hole of the vehicle body 1. Tightening the screw can fix the sensor bracket 5 to the vehicle body 1. Unscrewing the screw from the vehicle body 1 can remove the sensor bracket 5 from the vehicle body 1 for easy replacement of the sensor bracket 5.

[0045] In some embodiments of this utility model, reference is made to Figure 2 and Figure 4As shown, the chassis 10 also includes a connecting rod bracket 6, which is fixedly connected to the guide arm 2 by a second fastener. The second connecting end 432 of the connecting rod 43 is rotatably connected to the connecting rod bracket 6. The connection position of the second connecting end 432 can be adjusted by changing the model of the connecting rod bracket 6 so that the height detection device 4 can be installed on different vehicle models.

[0046] Specifically, the second fastener can be a bolt and a nut. Both the connecting rod bracket 6 and the guide arm 2 can have through holes. When installing the connecting rod bracket 6, the bolt can first pass through the through holes of the connecting rod bracket 6 and the guide arm 2, and then the nut can be screwed onto the bolt and tightened to fix the connecting rod bracket 6 to the guide arm 2. The connecting rod bracket 6 can be removed from the guide arm 2 by unscrewing the nut from the bolt, so as to facilitate the replacement of the connecting rod bracket 6.

[0047] The second fastener can also be a screw. The connecting rod bracket 6 can have a through hole, and the guide arm 2 can have a threaded hole. When installing the connecting rod bracket 6, the screw can pass through the through hole of the connecting rod bracket 6 and be threaded into the threaded hole of the guide arm 2. Tightening the screw can fix the connecting rod bracket 6 to the guide arm 2. Unscrewing the screw from the guide arm 2 can remove the connecting rod bracket 6 from the guide arm 2 for easy replacement of the connecting rod bracket 6.

[0048] Reference Figure 5 and 6 As shown, a connecting seat 21 may be provided on the guide arm 2. The connecting seat 21 has an upwardly protruding vertical plate, and the vertical plate of the connecting seat 21 may have a through hole. The connecting rod bracket 6 can be fixedly connected to the through hole of the connecting seat 21 through a second fastener. The vertical plate has a large assembly space on both sides. The setting of the connecting seat 21 facilitates the connection and assembly of the connecting rod bracket 6 and the guide arm 2. In some embodiments of this utility model, refer to Figure 1 As shown, the lifting elastic element 3 is constructed as an air spring (i.e., an airbag), which enables the chassis 10 to be constructed as an air suspension. The air inside the air spring is compressible, allowing the air spring to flexibly and adaptively absorb road impacts, reducing the impact transmitted to the vehicle body 1 and improving the vehicle's ride comfort. The travel of the air spring can be ±300mm.

[0049] The air spring can also precisely adjust the height of the vehicle body 1. Specifically, inflating the air spring will cause it to expand, and the air spring will push the vehicle body 1 vertically upward to make the vehicle body 1 rise. Releasing the air spring will cause it to contract, and the vehicle body 1 will descend under the action of gravity, thereby realizing the adjustment of the height of the vehicle body 1.

[0050] In some other embodiments of this utility model, the lifting elastic element 3 may include a hydraulic cylinder and a compression spring. The hydraulic cylinder may include a cylinder body and a piston rod. The cylinder body is connected to the guide arm 2. One end of the piston rod is movably connected to the cylinder body. The other end of the piston rod is connected to the vehicle body 1 through the compression spring. When hydraulic oil is injected into the cylinder body, the hydraulic oil can push the piston rod to extend outward. The piston rod can push the vehicle body 1 to rise through the compression spring. Discharging the hydraulic oil from the cylinder body can cause the piston rod to retract under the action of gravity. The vehicle body 1 can descend under the action of gravity, thereby realizing the adjustment of the height of the vehicle body 1.

[0051] According to the chassis 10 of this utility model embodiment, the problem of the connecting arm 42 breaking at the connection point of the sensor 41 due to the large swing angle of the connecting arm 42 under extreme working conditions (such as when the lifting elastic element 3 fails) can be effectively solved. This can improve the durability and reliability of the height detection device 4, reduce chassis 10 failures caused by the breakage of the connecting arm 42 and sensor 41 at the connection point, avoid causing trouble for users, and improve the versatility of the height detection device 4.

[0052] The vehicle according to another embodiment of the present invention includes the chassis 10 of the above embodiment.

[0053] According to the vehicle of the present invention, the height detection device 4 of the chassis 10 includes a sensor 41, a connecting arm 42 and a connecting rod 43. In the length direction of the connecting arm 42, the connecting rod 43 is selectively rotatably connected to different positions of the connecting arm 42. The assembly requirements can be met by adjusting the connection position between the connecting rod 43 and the connecting arm 42. There is no need to customize the design of the connecting rod 43 according to the specific vehicle model, which is beneficial to improving the versatility of the height detection device 4.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions 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 one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A chassis, characterized in that, include: The vehicle body (1) and the guide arm (2), one end of the guide arm (2) being rotatably connected to the vehicle body (1); The other end of the guide arm (2) is connected to the vehicle body (1) via the lifting elastic element (3); The height detection device (4) includes a sensor (41), a connecting arm (42) and a connecting rod (43). The sensor (41) is fixedly connected to the vehicle body (1). The connecting arm (42) is fixedly connected to the rotating shaft of the sensor (41). The connecting rod (43) is rotatably connected to the guide arm (2) and the connecting arm (42) respectively. In the longitudinal direction of the connecting arm (42), the connecting rod (43) is selectively rotatably connected to any position of the connecting arm (42).

2. The chassis according to claim 1, characterized in that, The connecting arm (42) has a plurality of adjustment holes (421) spaced apart along its length, and one of the adjustment holes (421) is rotatably connected to the connecting rod (43).

3. The chassis according to claim 2, characterized in that, Among the plurality of adjustment holes (421), the adjustment hole (421) that is furthest from the sensor (41) is rotatably connected to the connecting rod (43).

4. The chassis according to claim 1, characterized in that, The connecting arm (42) has a guide groove extending along its length; The height detection device (4) further includes a slider and a locking device. The connecting rod (43) is rotatably connected to the slider, and the locking device is fixedly connected to the slider. In the length direction of the connecting arm (42), the slider slides in cooperation with the guide groove, and the locking device selectively locks in cooperation with the connecting arm (42).

5. The chassis according to claim 1, characterized in that, The length of the connecting arm (42) is greater than or equal to 500 mm.

6. The chassis according to any one of claims 1-5, characterized in that, The connecting arm (42) is made of stainless steel or aluminum alloy.

7. The chassis according to claim 1, characterized in that, The chassis also includes a sensor bracket (5), which is fixedly connected to the vehicle body (1) by a first fastener, and the sensor (41) is fixedly mounted on the sensor bracket (5).

8. The chassis according to claim 1, characterized in that, The chassis also includes a connecting rod bracket (6), which is fixedly connected to the guide arm (2) by a second fastener, and the connecting rod (43) is rotatably connected to the connecting rod bracket (6).

9. The chassis according to claim 1, characterized in that, The lifting elastic element (3) is constructed as an air spring.

10. A vehicle, characterized in that, Includes the chassis according to any one of claims 1-9.

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