All-terrain vehicle

Abstract

An all-terrain vehicle comprises a vehicle frame, a vehicle body covering part, a walking system, a power system and a transmission system. The frame comprises a node connecting structure, the node connecting structure comprises a plurality of joints, bushings and connecting pieces, and the plurality of joints are arranged in the mounting direction; a mounting hole is jointly formed in the plurality of joints, and the aperture of the mounting hole is gradually reduced; the two connectors located at the two ends of the installation direction are defined as a first connector and a second connector respectively, the part, located in the first connector, of the installation hole and the part, located in the second connector, of the installation hole are defined as a first hole section and a second hole section respectively, and the hole diameter of the first hole section is smaller than that of the second hole section; the bushing is embedded in the mounting hole, the outer diameter of the bushing is gradually reduced, and the outer peripheral wall of the bushing at least abuts against the second hole section; the connecting piece comprises a first pressing part and a second pressing part, the first pressing part abuts against one side of the first connector, and the second pressing part enables the bush to be pressed on the second hole section. In the application, the structures such as the bushing can improve the connection strength between the joints.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to an all-terrain vehicle. Background Technology

[0002] In some types of all-terrain vehicles, the support columns of the frame and the top rods, as well as the top rods and other top rods, are often connected by cast or forged joints. The joints are tightened with bolts and nuts. Due to the effects of assembly and gravity, impact and vibration during vehicle operation, the bolts will be subjected to lateral shear force, and the bolts are prone to deformation and failure, resulting in insufficient overall connection strength of the frame. Utility Model Content

[0003] In view of this, this application provides an all-terrain vehicle with high frame connection strength.

[0004] Embodiments of this application provide an all-terrain vehicle, including a frame, body panels, a running gear system, a power system, and a transmission system. The body panels at least partially cover the frame, the running gear system is connected to the frame and at least partially located below the frame, the power system is supported by the frame and provides power to the running gear system, and the transmission system drivesly connects the power system and the running gear system. The frame includes a node connection structure, which includes joints, bushings, and connectors. Multiple joints are provided, each defining an installation direction. These joints are arranged along the installation direction, with adjacent joints fitting together. Multiple joints collectively form an installation hole, the centerline of which is parallel to the installation direction. The diameter of the installation hole gradually decreases along the installation direction. Two joints located at opposite ends of the installation direction are defined as a first joint and a second joint, respectively. The portion of the installation hole within the first joint is defined as a first hole segment, and the portion within the second joint is defined as a second hole segment. The diameter of the first hole segment is smaller than that of the second hole segment. A bushing is fitted into the installation hole, its outer diameter gradually decreasing along the installation direction, and its outer peripheral wall at least partially abuts against the second hole segment. The connector includes a first clamping part, a connecting part, and a second clamping part connected sequentially. The first clamping part abuts against the side of the first joint away from the second joint, and the second clamping part presses the outer peripheral wall of the bushing against the second hole segment.

[0005] Optionally, the bushing has a first end and a second end at its two ends along the installation direction, with the outer diameter of the first end being smaller than that of the second end; the first end is located inside the first hole section, and the second end is located outside the mounting hole; the first end and the opening of the first hole section have a gap along the center line of the mounting hole.

[0006] Optionally, the side of the first connector away from the second connector is defined as the first outer sidewall, and the side of the second connector away from the first connector is defined as the second outer sidewall; the bushing is provided with a through hole, and the center line of the through hole is parallel to the installation direction; the connecting part is provided in the through hole, and one end of the connecting part passes through the through hole and is connected to the first clamping part.

[0007] Optionally, an extension is connected to the second end, the extension is located outside the second hole section, and the outer diameter of the extension is larger than the outer diameter of the second end; the second pressing part presses against the side of the extension away from the first pressing part.

[0008] Optionally, a receiving groove is provided on the first outer side wall, and the first pressing part is located in the receiving groove.

[0009] Optionally, along the installation direction, in two adjacent joints, one joint has a first contact plane and the other joint has a second contact plane, with the first contact plane and the second contact plane fitting together.

[0010] Optionally, the first contact surface is provided with a positioning groove, and the second contact surface is provided with a positioning boss, with the positioning boss at least partially located within the positioning groove.

[0011] Optionally, the bushing is provided with a deformation joint that connects the inside and outside of the bushing and extends through the bushing along the installation direction.

[0012] Optionally, the outer peripheral wall of the portion of the bushing located inside the mounting hole fits against the wall of the mounting hole; the angle between the outer peripheral wall of the bushing and the centerline of the mounting hole ranges from 0.3° to 3°.

[0013] Optionally, there are two mounting holes, each fitted with a bushing and a connector; the two mounting holes narrow in the same or opposite directions.

[0014] The tapered peripheral wall mates with the mounting hole, and each hole section abuts against the outer wall of the bushing. The connector presses the tapered peripheral wall tightly against the hole wall of the mounting hole, so that while the vehicle is in motion, the bushing protects the connector and improves the connection strength between multiple pipes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an all-terrain vehicle in one embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the fitting structure of the pipe fitting and node connection structure in one embodiment of this application;

[0017] Figure 3 This is a partial cross-sectional view of the node connection structure in one embodiment of this application;

[0018] Figure 4This is an exploded view of the node connection structure in one embodiment of this application;

[0019] Figure 5 This is an exploded view of the node connection structure from another perspective in one embodiment of this application;

[0020] Figure 6 This is a schematic diagram of the overall structure of the bushing in one embodiment of this application;

[0021] Figure 7 This is an exploded view of the node connection structure in another embodiment of this application;

[0022] Figure 8 This is a cross-sectional view of the node connection structure in another embodiment of this application. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this application to achieve the intended purpose, the following description, in conjunction with the accompanying drawings and embodiments, is provided. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0025] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the embodiments and features described below can be combined with each other.

[0026] Please see Figure 1 and Figure 2 An all-terrain vehicle 100 includes a frame 11, a body panel 12, a running system 13, a power system 14, and a transmission system 15.

[0027] To clearly illustrate the technical solution of this application, the following are also defined: Figure 1 The directions shown are front, rear, left, right, up, and down. In this application, the length direction of the frame 11 of the all-terrain vehicle 100 refers to... Figure 1 In the longitudinal direction, the width direction of the frame 11 of the all-terrain vehicle 100 refers to... Figure 1 In the left-right direction, the height direction of the frame 11 of the all-terrain vehicle 100 refers to... Figure 1 The diagram shows the up and down directions. The front, back, left, right, up, and down directions are based on the all-terrain vehicle 100 driving on a level road, not on a sloping road.

[0028] Body panel 12 at least partially covers frame 11. Running gear 13 is connected to frame 11 along the height of frame 11 and is at least partially located below frame 11. Power system 14 is supported by frame 11, and drivetrain 15 drivesly connects power system 14 and running gear 13, thereby providing power to running gear 13.

[0029] The walking system 13 includes two front wheels 131 located in front of the all-terrain vehicle 100 and two rear wheels 132 located behind the all-terrain vehicle 100, and the front wheels 131 and the rear wheels 132 are respectively rotatably connected to the frame 11.

[0030] Please see Figure 2 In some embodiments, the frame 11 includes tubes 111 and node connection structures 112. Multiple tubes 111 are provided and connected by node connection structures 112.

[0031] In some embodiments, two pipe fittings 111 are provided, with the central axes of the two pipe fittings 111 being parallel and connected in a straight line by a node connection structure 112.

[0032] In other embodiments, the central axes of the two pipe fittings 111 are perpendicular and they are joined together in a “∟” shape by a node connection structure 112.

[0033] In other embodiments, the central axes of the two pipe fittings 111 are set at an acute angle and are connected in a “∠” shape through the node connection structure 112.

[0034] In other embodiments, the central axes of the two pipe fittings 111 are set at an obtuse angle and are connected in a " / " shape through the node connection structure 112.

[0035] In other embodiments, the node connection structure 112 is generally arc-shaped, thereby smoothly connecting the two pipe fittings 111.

[0036] In some embodiments, multiple pipe fittings 111 are provided, and the connection methods of the multiple pipe fittings 111 include, but are not limited to, the connection methods described above.

[0037] Please see Figure 2 and Figure 3In some embodiments, the node connection structure 112 includes at least two connectors 1121, defining an installation direction Z. Multiple connectors 1121 are arranged along the installation direction Z, with adjacent connectors 1121 fitting together. A mounting hole 1122 is formed within each of the multiple connectors 1121. The centerline of the mounting hole 1122 is parallel to the installation direction Z, and the diameter of the mounting hole 1122 gradually decreases along the installation direction Z. The mounting hole 1122 includes multiple hole segments 1122a arranged sequentially along the installation direction Z. Each hole segment 1122a corresponds to one connector 1121 and is located within the corresponding connector 1121. Each hole segment 1122a penetrates the corresponding connector 1121. That is, each connector 1121 contains a hole segment 1122a penetrating along the installation direction Z. When all connectors 1121 are stacked together, all hole segments 1122a can form a complete mounting hole 1122.

[0038] The two connectors 1121 located at both ends of the installation direction Z are defined as the first connector 1121k and the second connector 1121n, respectively. The hole segment 1122a of the mounting hole 1122 located in the first connector 1121k is defined as the first hole segment 1122b, and the hole segment 1122a of the mounting hole 1122 located in the second connector 1121n is defined as the second hole segment 1122c. The diameter of the first hole segment 1122b is smaller than the diameter of the second hole segment 1122c.

[0039] In some embodiments, a plurality of mounting holes 1122 are provided, and the plurality of mounting holes 1122 are spaced apart along a direction perpendicular to the mounting direction Z.

[0040] In some specific embodiments, there are two mounting holes 1122, and the two mounting holes 1122 narrow in the same direction.

[0041] In some other specific embodiments, there are two mounting holes 1122, and the two mounting holes 1122 narrow in opposite directions.

[0042] The following explanation uses one of the mounting holes, 1122, as an example.

[0043] In some embodiments, the node connection structure 112 further includes a bushing 1123, one end of which extends into the mounting hole 1122, and the other end of which is located outside the mounting hole 1122. The bushing 1123 has a tapered peripheral wall 1123a, that is, the outer diameter of the bushing 1123 gradually decreases along the mounting direction Z, and the tapered peripheral wall 1123a gradually narrows in the same direction as the mounting hole 1122, so that the outer peripheral wall of the bushing 1123 can at least partially fit with the second hole segment 1122c.

[0044] It should be noted that the installation direction Z includes both the forward and backward directions parallel to the centerline of the mounting hole 1122. That is, the installation direction Z is not limited to any particular orientation while being parallel to the centerline of the mounting hole 1122. In this application, the diameter of the mounting hole 1122 gradually decreases along the installation direction Z. This can be understood as the diameter of the mounting hole 1122 gradually decreasing in the forward direction of the installation direction Z, or it can be understood as the diameter of the mounting hole 1122 gradually decreasing in the backward direction of the installation direction Z. Similarly, the outer diameter of the bushing 1123 gradually decreases along the installation direction Z. This can be understood as the outer diameter of the bushing 1123 gradually decreasing in the forward direction of the installation direction Z, or it can be understood as the outer diameter of the bushing 1123 gradually decreasing in the backward direction of the installation direction Z.

[0045] The tapered peripheral wall 1123a mates with the mounting hole 1122, and each hole segment 1122a abuts against the outer wall of the bushing 1123, thereby limiting the joint 1121 corresponding to each hole segment 1122a.

[0046] The node connection structure 112 also includes a connector 1124, which includes a first clamping part 1124c, a connecting part 1124b, and a second clamping part 1124a connected in sequence. The first clamping part 1124c abuts against the side of the first connector 1121k away from the second connector 1121n. The second clamping part 1124a is used to press the outer peripheral wall of the bushing 1123 against the second hole section 1122c, so that during vehicle operation, the bushing 1123 protects the connector 1124 while improving the connection strength between multiple pipe fittings 111. The first clamping part 1124c can be a nut, the connecting part 1124b can be a bolt body, and the second clamping part 1124a can be the head of a bolt.

[0047] In some embodiments, the two ends of the bushing 1123 along the mounting direction Z are the first end 1123b and the second end 1123c, respectively.

[0048] The second end 1123c is located outside the mounting hole 1122, and the first end 1123b is located inside the mounting hole 1122 and inside the first hole segment 1122b. It has a gap with the outer opening of the first hole segment 1122b along the installation direction Z, which is beneficial to leave room for the bushing 1123 to move, so that the tapered peripheral wall 1123a of the bushing 1123 can always be pressed against each hole segment 1122a of the mounting hole 1122.

[0049] In some embodiments, the side of the first connector 1121k away from the second connector 1121n is defined as the first outer sidewall 1125, and the side of the second connector 1121n away from the first connector 1121k is defined as the second outer sidewall 1126.

[0050] The bushing 1123 has a through hole 1123d along the installation direction Z, and the connecting part 1124b passes through the through hole 1123d.

[0051] The second clamping part 1124a and the first clamping part 1124c are located on both sides of the node connection structure 112 along the installation direction Z, respectively, and the first clamping part 1124c is clamped to the first outer wall 1125.

[0052] In some embodiments, an extension 1123e is connected to the second end portion 1123c, and the second pressing portion 1124a presses against the extension 1123e. The outer diameter of the extension 1123e is larger than the outer diameter of the second end portion 1123c, and the end face area of ​​the extension 1123e is larger. By providing the extension 1123e, the contact area between the second pressing portion 1124a and the bushing 1123 can be increased. On the one hand, the extension 1123e can separate the conical peripheral wall 1123a from the second pressing portion 1124a, improving the problem of the conical peripheral wall 1123a being squeezed and deformed; on the other hand, the extension 1123e can increase the friction with the second pressing portion 1124a, thereby playing a role in preventing loosening.

[0053] In some embodiments, the outer peripheral wall of the portion of the bushing 1123 located within the mounting hole 1122 conforms to the wall of the mounting hole 1122. The angle α between the outer peripheral wall of the bushing 1123 and the centerline of the mounting hole 1122 ranges from 0.3° to 3°. In some specific embodiments, the angle α ranges from 0.6° to 2.5°. In some specific embodiments, the angle α ranges from 1.2° to 2.1°.

[0054] It is worth noting that with the included angle α set in this way, the force applied by the connector 1124 to the bushing 1123 along the installation direction Z can, when transmitted to the bushing 1123 and the conical peripheral wall 1123a, form a component force acting on the conical peripheral wall 1123a along the installation direction Z. This component force helps to press the bushing 1123 and the conical peripheral wall 1123a tightly together, thus preventing the bushing 1123 from coming out of the mounting hole 1122. Furthermore, when this component force is transmitted between two adjacent joints 1121, it can further divide into a component force parallel to the installation direction Z, which helps the two adjacent joints 1121 to abut against each other. Therefore, relying on the simple structure of the bushing 1123, connector 1124, and included angle α, the connector 1124 of this application has strong shear resistance, while each joint 1121 can maintain a tight abutment, thereby making the entire node connection structure have strong structural stability and structural strength.

[0055] Furthermore, the included angle α should not be too large. Specifically, the included angle α should not exceed 3°. Otherwise, with the outer diameter of the connecting part 1124b remaining unchanged, the outer diameter of the bushing 1123 at its largest end will be too large, occupying too much installation area and affecting installation. In other words, an included angle α exceeding 3° will require the joint 1121 to be enlarged to provide sufficient area for installing the connector 1124, which is not conducive to controlling the outer diameter of the joint 1121 and the pipe 111 connected to the joint 1121, and is not conducive to cost control. The included angle α should also not be too small. Specifically, the included angle α should not be less than 0.3°. Otherwise, during normal vehicle use, if the mounting hole 1122 and / or the bushing 1123 deform to a certain extent, the bushing 1123 may slip out of the mounting hole 1122. That is, the inclined structure formed by the included angle α cannot help the bushing 1123 to abut against the mounting hole 1122, nor can it help the two adjacent joints 1121 to abut against each other. In other words, an included angle α less than 0.3° may lead to a decrease in the stability of the entire node connection structure and insufficient fault tolerance.

[0056] Please see Figure 4 and Figure 5 In some embodiments, along the installation direction Z, among two adjacent connectors 1121, one connector 1121 has a first contact plane 1121a, and the other connector 1121 has a second contact plane 1121b, with the first contact plane 1121a and the second contact plane 1121b in contact. The two adjacent connectors 1121 are in planar contact, thereby improving the connection stability of the two connectors 1121.

[0057] In some embodiments, the first contact plane 1121a is provided with a positioning groove 1121c, and the second contact plane 1121b is provided with a positioning boss 1121d, with the positioning boss 1121d at least partially located within the positioning groove 1121c. The cooperation between the positioning groove 1121c and the positioning boss 1121d facilitates the connection between two adjacent connectors 1121.

[0058] In some embodiments, a receiving groove 1121e is provided on the first outer side wall 1125, and the first pressing part 1124c is located in the receiving groove 1121e, thereby reducing the space occupied by the first pressing part 1124c and improving the flatness of the node connection structure 112.

[0059] Please see Figure 6In some embodiments, a deformation slot 1121a1 is provided on the conical peripheral wall 1123a. The deformation slot 1121a1 can connect the inside and outside of the bushing 1123. The deformation slot 1121a1 penetrates the bushing 1123 along the installation direction Z, so that the bushing 1123 can shrink and deform when it is impacted, thereby protecting the conical peripheral wall 1123a and the mounting hole 1122 and improving the problem of the conical peripheral wall 1123a and the mounting hole 1122 being squeezed and deformed.

[0060] Please see Figure 3 In some embodiments, the connector 1121 where the first outer side wall 1125 is located includes a first connecting end 1121f, and the connector 1121 where the second outer side wall 1126 is located includes a second connecting end 1121g. The first connecting end 1121f and the second connecting end 1121g are connected to different pipe fittings 111. The first connecting end 1121f is located on the side of the mounting hole 1122 away from the second connecting end 1121g, so that the pipe fittings 111 connected to the first connecting end 1121f and the second connecting end 1121g are connected in a straight line through the node connection structure 112.

[0061] Please see Figure 7 In some embodiments, the connector 1121 where the first outer side wall 1125 is located includes a first connecting end 1121f, and the connector 1121 where the second outer side wall 1126 is located includes a second connecting end 1121g. The first connecting end 1121f and the second connecting end 1121g connect different pipe fittings 111. The node connection structure 112 is generally arc-shaped, and the end face of the first connecting end 1121f and the end face of the second connecting end 1121g form a bend, thereby smoothly connecting the two pipe fittings 111 with an included angle.

[0062] Please see Figure 8 In some embodiments, the node connection structure 112 has a first outer side wall 1125 and a second outer side wall 1126 arranged along the installation direction Z. The node connection structure 112 also includes a third outer side wall 1127, which is located on the same side as the second outer side wall 1126. The first outer side wall 1125, the second outer side wall 1126, and the third outer side wall 1127 are located on different connectors 1121.

[0063] The joint 1121 where the first outer side wall 1125 is located includes a first connecting end 1121f, the joint 1121 where the second outer side wall 1126 is located includes a second connecting end 1121g, and the joint 1121 where the third outer side wall 1127 is located includes a third connecting end 1121h. The first connecting end 1121f and the second connecting end 1121g are arranged opposite to each other, and the third connecting end 1121h is arranged on one side of the first connecting end 1121f and the second connecting end 1121g, thereby forming a T-shaped docking form of multiple pipe fittings 111.

[0064] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.

Claims

1. An all-terrain vehicle, comprising: Frame; A body panel that at least partially covers the vehicle frame; A walking system, the walking system being connected to the frame and at least partially located under the frame; A power system, which is supported by the vehicle frame and provides power to the running gear; A transmission system that drivesly connects the power system and the walking system; The vehicle frame is characterized by comprising a node connection structure, the node connection structure including: The system includes multiple connectors, each defined with an installation direction. These connectors are arranged along the installation direction, with adjacent connectors fitting together. Each connector contains a common mounting hole, the centerline of which is parallel to the installation direction. The diameter of the mounting hole gradually decreases along the installation direction. Two connectors located at opposite ends of the installation direction are defined as a first connector and a second connector, respectively. The portion of the mounting hole within the first connector is defined as a first hole segment, and the portion within the second connector is defined as a second hole segment. The diameter of the first hole segment is smaller than the diameter of the second hole segment. A bushing, wherein the bushing is partially fitted into the mounting hole, the outer diameter of the bushing gradually decreases along the mounting direction, and the outer peripheral wall of the bushing at least partially abuts against the second hole segment; The connector includes a first pressing part, a connecting part, and a second pressing part connected in sequence. The first pressing part abuts against the side of the first connector away from the second connector, and the second pressing part is used to press the outer peripheral wall of the bushing against the second hole segment.

2. The all-terrain vehicle as described in claim 1, characterized in that, The bushing has a first end and a second end at its two ends along the installation direction, the outer diameter of the first end being smaller than the outer diameter of the second end; the first end is located inside the first hole section, and the second end is located outside the mounting hole; the first end and the opening of the first hole section have a gap along the center line direction of the mounting hole.

3. The all-terrain vehicle as described in claim 2, characterized in that, The side of the first connector away from the second connector is defined as the first outer wall, and the side of the second connector away from the first connector is defined as the second outer wall; the bushing is provided with a through hole, and the center line of the through hole is parallel to the installation direction; the connecting part is provided in the through hole, and one end of the connecting part passes through the through hole and is connected to the first pressing part.

4. The all-terrain vehicle as described in claim 3, characterized in that, An extension is connected to the second end, the extension is located outside the second hole section, and the outer diameter of the extension is larger than the outer diameter of the second end; the second pressing part presses against the extension on the side away from the first pressing part.

5. The all-terrain vehicle as described in claim 3, characterized in that, The first outer side wall is provided with a receiving groove, and the first pressing part is located in the receiving groove.

6. The all-terrain vehicle as described in claim 1, characterized in that, Along the installation direction, of two adjacent connectors, one connector has a first contact plane and the other connector has a second contact plane, the first contact plane and the second contact plane being in contact.

7. The all-terrain vehicle as described in claim 6, characterized in that, The first contact surface is provided with a positioning groove, and the second contact surface is provided with a positioning boss, wherein the positioning boss is at least partially located within the positioning groove.

8. The all-terrain vehicle as described in claim 1, characterized in that, The bushing is provided with a deformation joint, which connects the inside and outside of the bushing and also penetrates the bushing along the installation direction.

9. The all-terrain vehicle as described in claim 1, characterized in that, The outer peripheral wall of the portion of the bushing located within the mounting hole fits against the wall of the mounting hole; the angle between the outer peripheral wall of the bushing and the center line of the mounting hole ranges from 0.3° to 3°.

10. The all-terrain vehicle as described in claim 1, characterized in that, The mounting hole is provided in two parts, and each mounting hole is fitted with the bushing and the connector; the two mounting holes narrow in the same or opposite directions.

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