Shock-absorbing connection structure and unmanned vehicle

Abstract

The present application relates to the technical field of unmanned vehicles, and specifically to a shock-absorbing connection structure and an unmanned vehicle, which solves the problem that the vibration of the unmanned vehicle affects the control module, operation module, power module and other modules installed on the unmanned vehicle. The shock-absorbing connection structure includes a connecting frame and a support frame, and a shock-absorbing assembly connecting the connecting frame and the support frame. The shock-absorbing assembly includes an elastic unit and a rigid unit. The rigid unit is located in the first axial hole of the connecting frame and the second axial hole of the support frame, so that the connecting frame and the support frame can rotate relative to each other, realizing a rigid connection between the connecting frame and the support frame, and ensuring the rigidity of the shock-absorbing connection structure. The elastic unit connects the connecting frame and the support frame, so that an elastic connection is formed between the connecting frame and the support frame, thereby reducing the impact of the vibration of the unmanned vehicle on the control module, operation module, power module and other modules installed on the unmanned vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of unmanned vehicles, and in particular to a shock-absorbing connection structure and an unmanned vehicle. Background Art

[0002] With the development of unmanned vehicle technologies such as artificial intelligence, visual computing, and global positioning systems, their applications are becoming increasingly widespread. Unmanned vehicles can be applied in various scenarios, including agriculture and industry. For example, in the field of crop protection, unmanned vehicles can be equipped with various operation modules to spray pesticides, seeds, powders, and more. Compared to traditional manual operations, this significantly reduces labor intensity and improves efficiency. However, the operation of the unmanned vehicle's engine and the vehicle's own bumps can cause vibrations, which can affect modules such as the control module, operation module, and power module installed on the vehicle. Summary of the Invention

[0003] In view of this, an embodiment of the present application provides a shock-absorbing connection structure and an unmanned vehicle, which solves the problem that the vibration of the unmanned vehicle affects the control module, operation module, power module and other modules installed on the unmanned vehicle.

[0004] In the first aspect, an embodiment of the present application provides a shock-absorbing connection structure, including: a connecting frame, connected to the loading unit, the connecting frame including a first axial hole; a supporting frame, connected to the supporting unit, the supporting frame including a second axial hole; a shock-absorbing assembly, connecting the connecting frame and the supporting frame; wherein the shock-absorbing assembly includes: an elastic unit, connecting the connecting frame and the supporting frame to form an elastic connection between the connecting frame and the supporting frame; a rigid unit, located in the first axial hole and the second axial hole, and rotatably connected to the connecting frame and / or the supporting frame, so that the connecting frame and the supporting frame can rotate relative to each other.

[0005] In combination with the first aspect, in certain implementations of the first aspect, the rigid unit includes a central shaft, the connecting frame includes a bearing, the inner ring of the bearing forms a first axial hole, and the first axial hole is transitionally matched with the central shaft to enable the central shaft and the connecting frame to rotate relative to each other.

[0006] In combination with the first aspect, in certain implementations of the first aspect, the rigid unit further includes a nut, an end of the central shaft away from the bearing includes a threaded shaft segment, and the nut is threadedly connected to the threaded shaft segment of the central shaft.

[0007] In combination with the first aspect, in certain implementations of the first aspect, the second axial hole includes a spline groove arranged axially along the second axial hole, and the central shaft includes a spline shaft portion arranged axially along the central shaft; wherein the spline shaft portion is plug-fitted with the spline groove.

[0008] In combination with the first aspect, in certain implementations of the first aspect, the connecting frame includes a pivot portion and a first lug and a second lug symmetrically arranged with the pivot portion as the center, the supporting frame includes a receiving portion and a third lug and a fourth lug symmetrically arranged with the receiving portion as the center, and the elastic unit includes a first elastic unit and a second elastic unit; wherein the first elastic unit connects the first lug and the third lug, and the second elastic unit connects the second lug and the fourth lug.

[0009] In combination with the first aspect, in certain implementations of the first aspect, one end of the pivotal portion includes a pivotal surface, one end of the supporting portion includes a supporting surface, and the pivotal surface is in contact with the supporting surface.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the other end of the pivotal portion includes two connecting beams, which are connected to the loading unit, and the other end of the supporting portion includes two supporting arms, which are connected to the supporting unit.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the connecting beam includes a connecting hole, the loading unit includes a connecting rod, and the connecting rod is plugged into the connecting hole; the supporting arm includes a supporting hole, the supporting unit includes a supporting rod, and the support rod is plugged into the supporting hole.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the elastic unit includes a rubber body or a spring.

[0013] In a second aspect, an unmanned vehicle provided by an embodiment of the present application includes: the shock-absorbing connection structure mentioned in the first aspect; a control module connected to the shock-absorbing connection structure; and a wheeled support module connected to the shock-absorbing connection structure.

[0014] The shock-absorbing connection structure provided in the embodiment of the present application includes a connecting frame and a support frame, and a shock-absorbing assembly connecting the connecting frame and the support frame. The shock-absorbing assembly includes an elastic unit and a rigid unit. The rigid unit is located in the first axial hole of the connecting frame and the second axial hole of the support frame, so that the connecting frame and the support frame can rotate relative to each other, realizing a rigid connection between the connecting frame and the support frame, and ensuring the rigidity of the shock-absorbing connection structure. The elastic unit connects the connecting frame and the support frame, so that an elastic connection is formed between the connecting frame and the support frame, thereby reducing the impact of the vibration of the unmanned vehicle on the control module, operation module, power module and other modules installed on the unmanned vehicle. That is, the shock-absorbing connection structure of the present application can not only ensure the rigidity of the shock-absorbing connection structure, but also reduce the impact of the vibration of the unmanned vehicle on various modules installed on the unmanned vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other purposes, features, and advantages of the present application will become more apparent through a more detailed description of the embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the drawings, the same reference numerals generally represent the same structure or step.

[0016] Figure 1 Shown is a structural schematic diagram of a shock-absorbing connection structure provided in one embodiment of the present application.

[0017] Figure 2 Shown Figure 1 A cross-sectional view of the shock-absorbing connection structure shown.

[0018] Figure 3 Shown is a structural schematic diagram of a connecting frame provided in one embodiment of the present application.

[0019] Figure 4 Shown is a schematic structural diagram of a support frame provided in one embodiment of the present application.

[0020] Figure 5 Shown is a schematic structural diagram of an unmanned vehicle provided in one embodiment of the present application. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0022] Figure 1 Shown is a structural schematic diagram of a shock-absorbing connection structure provided in one embodiment of the present application. Figure 2 Shown Figure 1 A cross-sectional view of the shock-absorbing connection structure shown. Figure 3 Shown is a structural schematic diagram of a connecting frame provided in one embodiment of the present application. Figure 4 The figure shows a schematic diagram of the structure of the support frame provided by an embodiment of the present application. Figures 1 to 4 As shown, the shock-absorbing connection structure 10 includes a connecting frame 100, a supporting frame 200 and a shock-absorbing assembly.

[0023] Specifically, the connecting frame 100 is connected to the carrier unit. The connection method of the connecting frame 100 and the carrier unit can be welding, screwing, snapping, plugging, etc., which is not specifically limited in this application. The carrier unit is used to carry modules such as control modules and operation modules, which is not specifically limited in this application. The support frame 200 is connected to the support unit. The connection method of the support frame 200 and the support unit can be welding, screwing, snapping, plugging, etc., which is not specifically limited in this application. The support unit can be a wheeled support unit, a crawler support unit, etc., which is not specifically limited in this application. The support frame 200 includes a second axial hole 210. The connecting frame 100 includes a first axial hole 110. The shock absorbing assembly connects the connecting frame 100 and the support frame 200.

[0024] Exemplarily, the shock absorbing assembly includes an elastic unit 310 and a rigid unit 320 .

[0025] Specifically, the elastic unit 310 connects the connecting frame 100 and the supporting frame 200, forming an elastic connection between the connecting frame 100 and the supporting frame 200. The connection method of the elastic unit 310 to the connecting frame 100 and the supporting frame 200 can be adhesive, screw connection, etc., and this application does not specifically limit it. In one embodiment of the present application, the elastic unit 310 can be a rubber body or a spring. Designers can choose according to actual needs. As long as it is an elastic unit, this application does not specifically limit the structure of the elastic unit 310.

[0026] In one embodiment of the present application, the elastic unit 310 can be a cylinder made of rubber, and the cylinder can have a first through hole along the axial direction. The connecting frame 100 can include a protrusion having a second through hole, and the support frame 200 can also include a protrusion having a third through hole. The shock-absorbing connection structure 10 can also include a connecting bolt, which passes through the second through hole, the first through hole, and the third through hole in sequence, thereby connecting the connecting frame 100, the elastic unit 310, and the support frame 200 together, and the elastic unit 310 is located between the connecting frame 100 and the support frame 200, so that the connecting frame 100 and the support frame 200 form an elastic connection.

[0027] Specifically, the rigid unit 320 is located in the first axial hole 110 and the second axial hole 210. The rigid unit 320 can be a rotating shaft rotatably connected to the first axial hole 110 and the second axial hole 210, thereby being rotatably connected to the connecting frame 100 or the support frame 200, or being rotatably connected to both the connecting frame 100 and the support frame 200, thereby achieving relative rotation between the connecting frame 100 and the support frame 200, ensuring a rigid connection between the connecting frame and the support frame, and improving the rigidity of the shock-absorbing connection structure.

[0028] The shock-absorbing connection structure 10 provided in an embodiment of the present application includes a connecting frame 100 and a support frame 200, as well as a shock-absorbing assembly connecting the connecting frame 100 and the support frame 200. The shock-absorbing assembly includes an elastic unit 310 and a rigid unit 320. The rigid unit 320 is located in the first axial hole 110 of the connecting frame 100 and the second axial hole 210 of the support frame 200, thereby allowing the connecting frame 100 and the support frame 200 to rotate relative to each other, achieving a rigid connection between the connecting frame 100 and the support frame 200, and ensuring the rigidity of the shock-absorbing connection structure 10. The elastic unit 310 connects the connecting frame 100 and the support frame 200, forming an elastic connection between the connecting frame 100 and the support frame 200, thereby reducing the impact of the vibration of the unmanned vehicle on the control module, operation module, power module and other modules installed on the unmanned vehicle. In other words, the shock-absorbing connection structure 10 of the present application can not only ensure the rigidity of the shock-absorbing connection structure 10, but also reduce the impact of the vibration of the unmanned vehicle on the various modules installed on the unmanned vehicle.

[0029] In one embodiment of the present application, the rigid unit 320 includes a central shaft 321, and the adapter 100 includes a bearing 120. The inner ring of the bearing 120 forms a first axial hole 110. The first axial hole 110 and the central shaft 321 form a transition fit, allowing the central shaft 321 and the adapter 100 to rotate relative to each other. A transition fit refers to a situation where the hole and the shaft may have a clearance fit or an interference fit during assembly, with the tolerance zone of the hole and the tolerance zone of the shaft overlapping. The characteristic of a transition fit is that it may have a clearance or an interference fit, but the clearance and interference are relatively small. It is mainly used for relatively static connections that require precise positioning and disassembly, such as the connection between the inner ring of a bearing and a shaft.

[0030] Specifically, the bearing 120 may be a deep groove ball bearing, a self-aligning ball bearing, a thrust ball bearing, a thrust roller bearing, a needle roller bearing, etc. This application does not specifically limit the type of the bearing 120 .

[0031] By forming a first axial hole 110 on the inner ring of the bearing 120 and transitionally fitting with the central shaft 321, the central shaft 321 and the connecting frame 100 can rotate relative to each other, reducing the friction between the first axial hole 110 and the central shaft 321, making the rotation between the central shaft 321 and the connecting frame 100 smoother.

[0032] In one embodiment of the present application, bearing 120 may be a single-row tapered roller bearing. Both the inner and outer rings of a tapered roller bearing have tapered raceways, within which the tapered rollers are mounted. Tapered roller bearings can withstand radial loads and unidirectional axial loads. Therefore, choosing a single-row tapered roller bearing can withstand axial forces generated by vibration, further improving shock absorption.

[0033] In one embodiment of the present application, the rigid unit 320 further includes a nut 322. The end of the central shaft 321 away from the bearing 120 includes a threaded shaft section, and the nut 322 is threadedly engaged with the threaded shaft section of the central shaft 321. Specifically, after the central shaft 321 passes through the second axial hole 210, it is threadedly engaged with the nut 322, thereby limiting the axial movement of the central shaft 321 and preventing the central shaft 321 from falling out of the second axial hole 210.

[0034] In one embodiment of the present application, the second shaft hole 210 includes a spline groove arranged along the axial direction of the second shaft hole 210, and the central shaft 321 includes a spline shaft portion arranged along the axial direction of the central shaft. The spline shaft portion is plug-fitted with the spline groove.

[0035] By inserting and mating the spline grooves with the spline shafts, the central shaft 321 and the support frame 200 are prevented from rotating relative to each other. That is, only relative rotation between the connecting frame 100 and the rigid unit 320 is retained, while the rigid unit 320 and the support frame 200 are fixedly connected by the spline shafts and spline grooves, thereby improving the rigidity between the connecting frame 100 and the support frame 200.

[0036] In one embodiment of the present application, the connecting frame 100 includes a pivot portion 130 and a first lug 140 and a second lug 150 symmetrically disposed about the pivot portion 130. The supporting frame 200 includes a receiving portion 220 and a third lug 230 and a fourth lug 240 symmetrically disposed about the receiving portion 220. The elastic unit 310 includes a first elastic unit 311 and a second elastic unit 312.

[0037] Specifically, the first and second lugs 140, 150 can be integrally formed with the pivotal portion 130. The first and second lugs 140, 150 can also be fixed to the pivotal portion 130 by welding, bonding, or other methods. The first and second lugs 140, 150 can also be detachably connected to the pivotal portion 130 by screwing, plugging, or other methods. This application does not specifically limit the method for connecting the first and second lugs 140, 150 to the pivotal portion 130. The third and fourth lugs 230, 240 can be integrally formed with the receiving portion 220. The third and fourth lugs 230, 240 can also be fixed to the receiving portion 220 by welding, bonding, or other methods. The third and fourth lugs 230, 240 can also be detachably connected to the receiving portion 220 by screwing, plugging, or other methods. This application does not specifically limit the method for connecting the third and fourth lugs 230, 240 to the receiving portion 220.

[0038] Specifically, the first elastic unit 311 connects the first lug 140 and the third lug 230, and the second elastic unit 312 connects the second lug 150 and the fourth lug 240. The first elastic unit 311 can be connected to the first lug 140 and the third lug 230 by bonding, screwing, or snapping. The second elastic unit 312 can be connected to the second lug 150 and the fourth lug 240 by bonding, screwing, or snapping. This application does not specifically limit the connection method between the first elastic unit 311 and the first lug 140 and the third lug 230, or the connection method between the second elastic unit 312 and the second lug 150 and the fourth lug 240.

[0039] In one embodiment of the present application, the first lug 140 may include a fourth through hole 141. The second lug 150 may include a fifth through hole 151. The third lug 230 may include a sixth through hole 231. The fourth lug 240 may include a seventh through hole 241. The first elastic unit 311 may include an eighth through hole (not shown in the drawings). The second elastic unit 312 may include a ninth through hole (not shown in the drawings). The shock-absorbing connection structure 10 may further include a first lug connecting bolt 101 and a second lug connecting bolt 102. The first lug connecting bolt 101 passes through the fourth through hole 141, the eighth through hole, and the sixth through hole 231 in sequence, thereby connecting the connecting frame 100, the first elastic unit 310, and the support frame 200 together, and the first elastic unit 311 is located between the connecting frame 100 and the support frame 200, so that the connecting frame 100 and the support frame 200 form an elastic connection. The second lug connecting bolt 102 passes through the fifth through hole 151, the ninth through hole and the seventh through hole 241 in sequence, thereby connecting the connecting frame 100, the second elastic unit 312 and the support frame 200 together, and the second elastic unit 312 is located between the connecting frame 100 and the support frame 200, so that the connecting frame 100 and the support frame 200 form an elastic connection.

[0040] By providing the first lug 140 and the second lug 150 symmetrically arranged around the pivot portion 130 and the third lug 230 and the fourth lug 240 symmetrically arranged around the receiving portion 220, the first elastic unit 311 connects the first lug 140 and the third lug 230, and the second elastic unit 312 connects the second lug 150 and the fourth lug 240, thereby limiting the relative rotation angle between the connecting frame 100 and the supporting frame 200. Figure 1 As shown, if the support frame 200 rotates clockwise relative to the connecting frame 100 ( Figure 1In the direction indicated by the arrow A in the middle), the first elastic unit 311 is stretched and the second elastic unit 312 is compressed. Since the first elastic unit 311 and the second elastic unit 312 both have preset stretching and compression ranges, the relative rotation angle between the support frame 200 and the connecting frame 100 can be limited. By setting the preset stretching and compression ranges of the first elastic unit 311 and the second elastic unit 312, the relative rotation angle between the support frame 200 and the connecting frame 100 can be set. By limiting the relative rotation angle between the connecting frame 100 and the support frame 200, the stability of the shock-absorbing connection structure 10 caused by the excessive rotation angle between the connecting frame 100 and the support frame 200 can be prevented from decreasing. That is, by limiting the relative rotation angle between the connecting frame 100 and the support frame 200, both the shock-absorbing effect and the stability of the shock-absorbing connection structure 10 can be achieved.

[0041] In one embodiment of the present application, one end of the pivoting portion 130 includes a pivoting surface 131, and one end of the receiving portion 220 includes a receiving surface 221. The pivoting surface 131 is in contact with the receiving surface 221. Specifically, the pivoting portion 130 can be a cylinder with an axial through hole, and the pivoting surface 131 is formed by changing the radius of part of the cylinder. Figure 3 As shown, the radius of the pivoting surface 131 is smaller than the radius of other positions of the pivoting portion 130. The receiving portion 220 can also be a cylinder with an axial through hole. Figure 3 As shown, the receiving surface 221 can be a semicircular curved surface located at one end of the receiving portion 220. The radius of the curved surface of the receiving surface 221 can be equal to the radius of the pivoting surface 131, so that the receiving surface 221 and the pivoting surface 131 form a surface contact. The pivoting portion 130 and the receiving portion 220 can also have other shapes, which can be selected by the designer according to actual needs and are not specifically limited in this application.

[0042] By providing the pivotal surface 131 and the receiving surface 221, and by making the pivotal surface 131 and the receiving surface 221 fit together, a surface contact is achieved between the connecting frame 100 and the support frame 200, thereby increasing the contact area between the connecting frame 100 and the support frame 200 and improving the connection rigidity between the connecting frame 100 and the support frame 200. In addition, by providing the pivotal surface 131 and the receiving surface 221, only the pivotal surface 131 and the receiving surface 221 need to be fine-machined, ensuring the roundness and coaxiality of the pivotal surface 131 and the receiving surface 221, thereby reducing processing costs.

[0043] In one embodiment of the present application, one end of the pivot portion 130 includes a first lug 140 and a second lug 150 symmetrically arranged around the pivot portion 130. The other end of the pivot portion 130 includes two connecting beams, namely a first connecting beam 160 and a second connecting beam 170. The number of connecting beams can be selected according to actual needs and is not specifically limited in this application. The first connecting beam 160 and the second connecting beam 170 can be symmetrically arranged around the pivot portion 130. The first connecting beam 160 and the second connecting beam 170 are connected to the carrier unit, thereby providing two support points for the carrier unit and improving the stability of the carrier unit.

[0044] The first connecting beam 160 and the second connecting beam 170 can be integrally formed with the pivotal portion 130. The first connecting beam 160 and the second connecting beam 170 can also be fixed to the pivotal portion 130 by welding, bonding, or other methods. The first connecting beam 160 and the second connecting beam 170 can also be detachably connected to the pivotal portion 130 by screwing, plugging, or other methods. This application does not specifically limit the method of connecting the first connecting beam 160 and the second connecting beam 170 to the pivotal portion 130.

[0045] One end of the receiving portion 220 includes a third lug 230 and a fourth lug 240 symmetrically arranged about the receiving portion 220, and the other end includes two support arms, namely a first support arm 250 and a second support arm 260. The number of support arms can be selected based on actual needs and is not specifically limited in this application. The first support arm 250 and the second support arm 260 can be symmetrically arranged about the receiving portion 220. The first support arm 250 and the second support arm 260 are connected to the support unit, thereby providing two support points for the support unit and improving the stability of the support unit.

[0046] The first support arm 250 and the second support arm 260 can be integrally formed with the receiving portion 220. The first support arm 250 and the second support arm 260 can also be fixed to the receiving portion 220 by welding, bonding, or other methods. The first support arm 250 and the second support arm 260 can also be detachably connected to the receiving portion 220 by screwing, plugging, or other methods. This application does not specifically limit the connection method between the first support arm 250 and the second support arm 260 and the receiving portion 220.

[0047] In one embodiment of the present application, the connecting beam includes an connecting hole, the loading unit includes an connecting rod, and the connecting rod plugs into the connecting hole. The support arm includes a support hole, and the support unit includes a support rod, and the support rod plugs into the support hole. The plug-in connection facilitates the connection between the connecting frame 100 and the loading unit, facilitating installation and removal of the connecting frame 100 and the loading unit, thereby improving the user experience. The plug-in connection facilitates the connection between the support frame 200 and the support unit, facilitating installation and removal of the support frame 200 and the support unit, thereby improving the user experience.

[0048] Figure 5 The figure shows a schematic diagram of the structure of an unmanned vehicle provided by an embodiment of the present application. Figure 5 As shown, the unmanned vehicle includes the shock-absorbing connection structure 20, the control module 30, and the wheeled support module 40 mentioned in any of the above embodiments.

[0049] Specifically, the shock-absorbing connection structure 20 connects the control module 30 and the wheeled support module 40. The shock-absorbing connection structure 20 can be connected to the control module 30 directly or through the cargo carrier 50. For example, the shock-absorbing connection structure 20 can be directly welded to the control module 30. In another example, the shock-absorbing connection structure 20 can be connected to the cargo carrier 50 through welding, screwing, snapping, plugging, etc., and then the control module 30 is fixed to the cargo carrier 50, facilitating installation and removal of the control module 30.

[0050] In one embodiment of the present application, the unmanned vehicle includes two shock-absorbing connection structures 20. The two shock-absorbing connection structures 20 are symmetrically arranged around the cargo unit 50, thereby improving the stability of the cargo unit 50 and thus improving the stability of the control module 30 fixed to the cargo unit 50, further reducing the impact of vibration on the control module 30.

[0051] In one embodiment of the present application, the unmanned vehicle includes four wheeled support modules 40. The four wheeled support modules 40 are arranged in a matrix with a cargo unit 50 as the center, thereby improving the stability of the cargo unit 50, thereby improving the stability of the control module 30 fixed to the cargo unit 50, and further reducing the impact of vibration on the control module 30.

[0052] In one embodiment of the present application, the unmanned vehicle may further include a power module 41. The power module 41 may be a motor that drives wheels 42 in the wheeled support module 40. The unmanned vehicle may further include an operation module (not shown in the accompanying drawings). The operation module may be a module for spraying pesticides, seeds, powders, etc. This application does not specifically limit the type of operation module.

[0053] By making the unmanned vehicle include the shock-absorbing connection structure 20, the shock-absorbing effect of the unmanned vehicle is improved, and the impact of the vibration of the unmanned vehicle on the control module 30, the power module 41, the operation module and other modules installed on the unmanned vehicle is reduced.

[0054] In the description of the present application, 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, and are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0055] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0056] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0057] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0059] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A shock-absorbing connection structure, characterized in that: include: A connecting frame connected to the loading unit, the connecting frame comprising a first shaft hole; A support frame connected to the support unit, wherein the support frame includes a second axial hole; A shock absorbing assembly, connecting the connecting frame and the supporting frame; Wherein, the shock absorbing assembly comprises: an elastic unit, connecting the connecting frame and the supporting frame to form an elastic connection between the connecting frame and the supporting frame; a rigid unit, located in the first axial hole and the second axial hole, and rotatably connected to the connecting frame and / or the supporting frame, so that the connecting frame and the supporting frame can rotate relative to each other; The connecting frame includes a pivot portion and a first lug and a second lug symmetrically arranged around the pivot portion; the supporting frame includes a receiving portion and a third lug and a fourth lug symmetrically arranged around the receiving portion; and the elastic unit includes a first elastic unit and a second elastic unit. The first elastic unit connects the first lug and the third lug, and the second elastic unit connects the second lug and the fourth lug.

2. The shock-absorbing connection structure according to claim 1, characterized in that: The rigid unit includes a central shaft, the connecting frame includes a bearing, the inner ring of the bearing forms the first shaft hole, and the first shaft hole is transitionally matched with the central shaft to enable the central shaft and the connecting frame to rotate relative to each other.

3. The shock-absorbing connection structure according to claim 2, characterized in that: The rigid unit further comprises a nut, and an end of the central shaft away from the bearing comprises a threaded shaft section, and the nut is threadedly connected to the threaded shaft section of the central shaft.

4. The shock-absorbing connection structure according to claim 2, characterized in that: The second shaft hole includes a spline groove arranged along the axial direction of the second shaft hole, and the central shaft includes a spline shaft portion arranged along the axial direction of the central shaft; Wherein, the spline shaft portion is plug-fitted with the spline groove.

5. The shock-absorbing connection structure according to claim 1, characterized in that: One end of the pivotal portion includes a pivotal surface, one end of the supporting portion includes a supporting surface, and the pivotal surface is in contact with the supporting surface.

6. The shock-absorbing connection structure according to claim 5, characterized in that: The other end of the pivoting portion includes two connecting beams, and the connecting beams are connected to the loading unit. The other end of the receiving portion includes two supporting arms, and the supporting arms are connected to the supporting unit.

7. The shock-absorbing connection structure according to claim 6, characterized in that: The connecting beam includes a connecting hole, the loading unit includes a connecting rod, and the connecting rod is plugged into and matched with the connecting hole; the supporting arm includes a supporting hole, the supporting unit includes a supporting rod, and the supporting rod is plugged into and matched with the supporting hole.

8. The shock-absorbing connection structure according to any one of claims 1 to 7, characterized in that: The elastic unit includes a rubber body or a spring.

9. An unmanned vehicle, characterized in that: include: The shock-absorbing connection structure according to any one of claims 1 to 8; a control module connected to the shock-absorbing connection structure; as well as A wheeled support module is connected to the shock absorbing connection structure.

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