Slide rail device and all-terrain vehicle

Abstract

The application discloses a slide rail device and an all-terrain vehicle. The slide rail device comprises a guide rail, a first pulley and a second pulley. The guide rail is arranged between the first pulley and the second pulley, and the guide rail is configured to move relative to the first pulley and the second pulley. The first pulley and the second pulley partially overlap in the horizontal direction. The slide rail device has the advantages of small size, small space occupation, flexible arrangement and the ability to reduce the height of the seat.

Description

Technical Field

[0001] This invention relates to the field of all-terrain vehicle technology, specifically to a sliding rail device and an all-terrain vehicle. Background Technology

[0002] Most all-terrain vehicles in related technologies use the seat rail system of conventional automobiles. However, since the seats of all-terrain vehicles are exposed to the air, mud and sand can easily enter and accumulate in the seat rails during off-road driving, leading to problems such as rail blockage and inability to adjust the seat. Although some all-terrain vehicles use a rail system composed of round tube rails and double concave pulleys, this type of rail system has the problem of being large in size and difficult to arrange in space. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of the present invention provide a slide rail device that has the advantages of small size, small space occupation, flexible arrangement, and the ability to reduce the height of the seat.

[0005] Embodiments of the present invention also propose an all-terrain vehicle.

[0006] According to an embodiment of the present invention, the slide rail device includes a guide rail, a first pulley, and a second pulley. The guide rail is disposed between the first pulley and the second pulley, and the guide rail is configured to move relative to the first pulley and the second pulley. The first pulley and the second pulley overlap in their horizontal projection portions.

[0007] According to the slide rail device of the present invention, a guide rail is disposed between a first pulley and a second pulley. Under the support and limiting of the first pulley and the second pulley, the movement of the guide rail relative to the first pulley and the second pulley is stable and reliable. At the same time, the first pulley and the second pulley are arranged to overlap at least in one horizontal direction, so that the first pulley and the second pulley occupy less space in the height direction, making the slide rail device more compact, smaller in size, and more flexible in arrangement.

[0008] In some embodiments, the guide rail has at least one first protrusion toward the first pulley, the first protrusion extending along the length direction of the guide rail;

[0009] And / or, the guide rail has at least one second protrusion toward the second pulley, the second protrusion extending along the length direction of the guide rail.

[0010] In some embodiments, at least one of the first pulley and the second pulley is a cam or at least one is a concave pulley.

[0011] In some embodiments, the slide rail device further includes a fixed bracket, wherein the first pulley and the second pulley are rotatably mounted on the fixed bracket, and the first pulley and the second pulley are respectively disposed above and below the guide rail.

[0012] In some embodiments, the top surface of the guide rail is a convex curved surface, the first pulley is a concave pulley, and the first pulley rolls in contact with the top surface of the guide rail.

[0013] In some embodiments, the guide rail has a downward-facing guide groove that extends along the length of the guide rail, and the second pulley is a cam that rolls into contact with the inner surface of the guide groove.

[0014] In some embodiments, the bottom surface of the guide groove is a concave curved surface, and the outer contour of the cross-section of the outer peripheral surface of the second pulley matches the outer contour of the cross-section of the bottom surface of the guide groove.

[0015] In some embodiments, the guide groove extends through the guide rail along its length, and the wall thickness of the guide rail is equal at all positions.

[0016] In some embodiments, the fixed bracket includes an upper bracket and a lower bracket, the upper bracket and the lower bracket being detachably connected, a first pulley being rotatably mounted on the upper bracket, and a second pulley being rotatably mounted on the lower bracket.

[0017] In some embodiments, the guide rail is provided with a plurality of positioning holes, which are spaced apart along the length of the guide rail. The slide rail device further includes an adjusting rod, a locking rod, and an elastic element. The adjusting rod is connected to the fixed bracket and is pivotable between a locked position and an unlocked position. The locking rod is connected to the adjusting rod. When the adjusting rod is in the locked position, the locking rod engages with any one of the positioning holes. When the adjusting rod is in the unlocked position, the locking rod disengages from any one of the positioning holes. The elastic element connects the adjusting rod and the fixed bracket, and the elastic element presses the adjusting rod toward the locked position.

[0018] In some embodiments, the adjusting rod is pivotally connected to the fixed bracket via a pivot, and the elastic element includes a torsion spring sleeved on the pivot, with its two ends connected to the adjusting rod and the fixed bracket, respectively.

[0019] The all-terrain vehicle according to an embodiment of the present invention includes a vehicle body, a base, a seat, and at least two guide rail devices as described in any of the above embodiments. The at least two guide rails extend along a first direction and are spaced apart along a second direction, the first direction being orthogonal to the second direction. The base is connected to the seat, and one of the vehicle body and the base is connected to the guide rail. The first pulley and the second pulley are rotatably mounted on the other of the vehicle body and the base.

[0020] The technical advantages of the all-terrain vehicle according to the embodiments of the present invention are the same as the technical advantages of the slide rail device in the above embodiments, and will not be repeated here.

[0021] In some embodiments, there are two slide rail devices, the two guide rails are connected to the vehicle body, the base includes a first bracket and a second bracket, the first pulley and the second pulley are rotatably mounted on the first bracket, and the seat is detachably connected to the second bracket.

[0022] In some embodiments, the second support includes a first link and a second link, both extending along the second direction and spaced apart along the first direction; the seat includes:

[0023] A seat frame, the bottom of which is provided with a first slot and a second slot, the first slot being fitted onto a first connecting rod, the seat frame being pivotable relative to the first connecting rod and having a first position and a second position; when the seat frame is in the first position, the second connecting rod is engaged in the second slot; when the seat frame is in the second position, the second connecting rod is disengaged from the second slot; and

[0024] A locking hook is pivotally connected to the seat frame, and when the seat frame is in the first position, the locking hook engages with the second link.

[0025] In some embodiments, the first link is higher than the second link, the depth direction of the second slot is orthogonal to the first direction and the second direction, and the depth direction of the first slot is at an angle to the depth direction of the second slot. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an all-terrain vehicle according to an embodiment of the present invention.

[0027] Figure 2 This is another schematic diagram of an all-terrain vehicle according to an embodiment of the present invention, wherein the seat is located in a first position.

[0028] Figure 3 This is another schematic diagram of an all-terrain vehicle according to an embodiment of the present invention, wherein the seat is located in a second position.

[0029] Figure 4 This is a schematic diagram of the vehicle body and sliding rail device in an all-terrain vehicle according to an embodiment of the present invention.

[0030] Figure 5 This is a cross-sectional view of two slide rail devices in an all-terrain vehicle according to an embodiment of the present invention.

[0031] Figure 6 This is an exploded view of two slide rail devices, a first link, and a second link in an all-terrain vehicle according to an embodiment of the present invention.

[0032] Figure label:

[0033] 10. Base; 11. First bracket; 12. Second bracket; 121. First connecting rod; 122. Second connecting rod; 13. Adjusting rod; 14. Locking rod; 15. Torsion spring; 20. Slide rail device; 21. Guide rail; 211. Positioning hole; 22. First pulley; 23. Second pulley; 24. Fixed bracket; 241. Upper bracket; 242. Lower bracket; 30. Seat; 301. First slot; 302. Second slot; 40. Body; 50. Locking hook. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0035] The following is combined Figures 1-6 The slide rail device 20 and the all-terrain vehicle according to embodiments of the present invention are described.

[0036] According to an embodiment of the present invention, the slide rail device 20 includes a guide rail 21, a first pulley 22 and a second pulley 23. The guide rail 21 is disposed between the first pulley 22 and the second pulley 23, and the guide rail 21 is configured to move relative to the first pulley 22 and the second pulley 23. The first pulley 22 and the second pulley 23 overlap in the horizontal projection portion.

[0037] According to the slide rail device 20 of the present invention, a guide rail 21 is disposed between a first pulley 22 and a second pulley 23. Under the support and limitation of the first pulley 22 and the second pulley 23, the movement of the guide rail 21 relative to the first pulley 22 and the second pulley 23 is stable and reliable. At the same time, the first pulley 22 and the second pulley 23 are arranged to overlap at least in one horizontal direction, so that the first pulley 22 and the second pulley 23 occupy less space in the height direction, making the slide rail device 20 more compact, smaller in size, and more flexible in arrangement.

[0038] It should be noted that the highest point of the first pulley 22 is higher than the highest point of the second pulley 23, while the lowest point of the first pulley 22 is lower than the highest point of the second pulley 23 but higher than the lowest point of the second pulley 23.

[0039] In some embodiments, the guide rail 21 has at least one first protrusion toward the first pulley 22, the first protrusion extending along the length direction of the guide rail 21. And / or, the guide rail 21 has at least one second protrusion toward the second pulley 23, the second protrusion extending along the length direction of the guide rail 21.

[0040] Both the first protrusion and the second protrusion can respectively limit the movement of the first pulley 22 and the second pulley 23 along the axial direction of the first pulley 22, and the guide rail 21 has higher motion stability and reliability relative to the first pulley 22 and the second pulley 23.

[0041] For example, when there is one first protrusion, the first pulley 22 corresponds to a concave pulley, which rolls onto the outer surface of the first protrusion. When there are two first protrusions, a groove extending along the length of the guide rail 21 is defined between the two first protrusions, and the first pulley 22 corresponds to a cam, which rolls onto the inner surface of the groove. Similarly, when there is one or two second protrusions, the second pulley 23 corresponds to either a concave pulley or a cam.

[0042] In some embodiments, at least one of the first pulley 22 and the second pulley 23 is a cam or at least one is a concave wheel.

[0043] Therefore, when the first pulley 22 and the second pulley 23 roll in cooperation with the guide rail 21, each of the first pulley 22 and the second pulley 23 can achieve relative fixation with the guide rail 21 in the axial direction of the first pulley 22, and the seat 30 where the first pulley 22 and the second pulley 23 are located moves stably and reliably relative to the guide rail 21.

[0044] For example, such as Figure 5 As shown, the first pulley 22 is a concave pulley, and the second pulley 23 is a cam.

[0045] In some embodiments, the slide rail device 20 further includes a fixed bracket 24, on which the first pulley 22 and the second pulley 23 are rotatably mounted. The first pulley 22 and the second pulley 23 are respectively disposed above and below the guide rail 21.

[0046] The fixed bracket 24 ensures that the axis of the first pulley 22 and the axis of the second pulley 23 are relatively fixed, and the rolling cooperation between each of the first pulley 22 and the second pulley 23 and the guide rail 21 is stable and reliable.

[0047] For example, such as Figure 6As shown, a first pulley 22 and a second pulley 23 are rotatably mounted on each fixed bracket 24, and two fixed brackets 24 are arranged on each guide rail 21, that is, the two first pulleys 22 and the two second pulleys 23 roll in cooperation on the guide rail 21.

[0048] In some embodiments, the top surface of the guide rail 21 is a convex curved surface, and the first pulley 22 is a concave pulley, with the first pulley 22 rollingly engaging with the top surface of the guide rail 21.

[0049] When the first pulley 22 rolls on the top surface of the guide rail 21, the top wall of the top surface of the guide rail 21 fits into the annular groove formed by the first pulley 22, thereby achieving relative fixation of the first pulley 22 and the guide rail 21 in the axial direction of the first pulley 22, ensuring stable sliding fit between the fixed bracket 24 and the guide rail 21 in the length direction of the guide rail 21.

[0050] For example, the outer peripheral surface of the first pulley 22 forms an annular groove, and the outer profile of the cross-section of the inner surface of the annular groove matches the outer profile of the cross-section of the top surface of the guide rail 21.

[0051] In some embodiments, the guide rail 21 has a downward-facing guide groove that extends along the length of the guide rail 21, and the second pulley 23 is a cam that rolls with the inner surface of the guide groove.

[0052] The downward-facing opening of the guide groove on the guide rail 21 prevents the accumulation of mud and sand, reduces the likelihood of the seat 30 getting stuck, and ensures high reliability in adjusting the position of the seat 30 relative to the vehicle body 40. Furthermore, at least a portion of the second pulley 23 is located within the guide groove; that is, on the projection plane perpendicular to the axis of the second pulley 23, the projection of the second pulley 23 partially overlaps with the projection of the guide rail 21. This better achieves partial overlap between the projection of the second pulley 23 and the projection of the first pulley 22, resulting in a smaller, more compact vertical dimension of the slide rail device 20, thus meeting the usage requirements of all-terrain vehicles.

[0053] For example, since the distance between the first pulley 22 and the second pulley 23, which are rotatably mounted on the fixed bracket 24, is fixed, the rolling engagement between the second pulley 23 and the bottom surface of the guide groove effectively prevents the first pulley 22 from detaching from the guide rail 21. In other words, the first pulley 22 serves to support the pulley and limit its axial movement, while the second pulley 23 serves to limit its vertical movement, thereby ensuring a stable sliding engagement between the fixed bracket 24 and the guide rail 21 along the length of the guide rail 21.

[0054] In some embodiments, such as Figure 5 and Figure 6 As shown, the bottom surface of the guide groove is a concave curved surface, and the outer contour of the cross-section of the outer peripheral surface of the second pulley 23 matches the outer contour of the cross-section of the bottom surface of the guide groove.

[0055] When the second pulley 23 is fitted in the guide groove, the outer peripheral surface of the second pulley 23 is in contact with the bottom surface of the guide groove. That is, the rolling fit between the second pulley 23 and the bottom surface of the guide groove also achieves the relative fixation of the two in the axial direction of the second pulley 23. As a result, the sliding stability of the fixed bracket 24 on the guide rail 21 is higher, and the sliding of the fixed bracket 24 along the length direction of the guide rail 21 is more effortless.

[0056] It should be noted that the fixed bracket 24 is spaced apart from the guide rail 21, that is, the fixed bracket 24 only slides with the guide rail 21 through the first pulley 22 and the second pulley 23. Only rolling friction is generated between the fixed bracket 24 and the guide rail 21, so the sliding of the fixed bracket 24 is more stable and less effort.

[0057] In some embodiments, such as Figure 5 and Figure 6 As shown, the guide groove runs through the guide rail 21 along its length, and the wall thickness of the guide rail 21 is equal at all positions.

[0058] That is, the guide rail 21 is formed by bending or stamping a flat plate of uniform thickness in one piece, thus the forming of the guide rail 21 is simple and convenient and has high strength.

[0059] In some embodiments, the fixed bracket 24 includes an upper bracket 241 and a lower bracket 242, the upper bracket 241 and the lower bracket 242 are detachably connected, a first pulley 22 is rotatably mounted on the upper bracket 241, and a second pulley 23 is rotatably mounted on the lower bracket 242.

[0060] At this point, the upper bracket 241 and the lower bracket 242 can be arranged above and below the guide rail 21 respectively, and the first pulley 22 and the second pulley 23 can be rolled and engaged with the guide rail 21. Then, the upper bracket 241 and the lower bracket 242 are connected after docking to complete the assembly of the slide rail device 20. The slide rail device 20 is easy to assemble and disassemble.

[0061] For example, such as Figure 5 and Figure 6 As shown, the upper bracket 241 has a U-shaped groove with its opening facing downwards, and the first pulley 22 is rotatably installed in the U-shaped groove of the upper bracket 241 by bolts and nuts. The lower bracket 242 has a U-shaped groove with its opening facing upwards, and the second pulley 23 is rotatably installed in the U-shaped groove of the lower bracket 242 by bolts. The upper bracket 241 and the lower bracket 242 are connected by bolts and nuts. The assembled fixed bracket 24, the first slide rail and the second slide rail can also be fitted onto the guide rail 21 by the end of the guide rail 21, so as to realize the sliding fit of the fixed bracket 24 on the guide rail 21.

[0062] In some embodiments, such as Figure 4 and Figure 5As shown, the guide rail 21 has multiple positioning holes 211, which are spaced apart along the length of the guide rail 21. The slide rail device 20 also includes an adjusting rod 13, a locking rod 14, and an elastic element. The adjusting rod 13 is connected to the fixed bracket 24 and can pivot between the locked and unlocked positions. The locking rod 14 is connected to the adjusting rod 13. When the adjusting rod 13 is in the locked position, the locking rod 14 engages with any one of the positioning holes 211. When the adjusting rod 13 is in the unlocked position, the locking rod 14 disengages from any one of the positioning holes 211. The elastic element connects the adjusting rod 13 and the fixed bracket 24, and the elastic element presses the adjusting rod 13 towards the locked position.

[0063] When the locking rod 14 is engaged in any of the positioning holes 211, the fixed bracket 24 and the guide rail 21 are relatively fixed along the length of the guide rail 21, thus ensuring the seat 30 is locked and fixed on the vehicle body 40 and preventing the seat 30 from accidentally sliding and affecting the safe driving of the all-terrain vehicle. At the same time, by driving the adjusting rod 13 to rotate relative to the support plate, the locking rod 14 can be pulled out of the positioning hole 211, thereby enabling the slider assembly to slide relative to the guide rail 21 and realizing the position adjustment function of the seat 30.

[0064] Specifically, the adjusting rod 13 extends generally along the length of the vehicle body 40, its rear end is connected to the locking rod 14, and its position near the rear end is pivotally connected to the support plate. The pivot axis of the adjusting rod 13 extends along the height of the vehicle body 40, and its front end is adjacent to the front end of the seat 30. At this time, as... Figure 4 As shown, by turning the front end of the adjusting rod 13 to the left, the locking rod 14 can be pulled out of the positioning hole 211 to adjust the position of the seat 30 in the length direction of the vehicle body 40. After the seat 30 is adjusted to the appropriate position, the adjusting rod 13 is released. Under the pressure of the elastic element, the adjusting rod 13 returns to its original position, and the locking rod 14 automatically engages with the adjacent positioning hole 211 to lock the seat 30.

[0065] In some embodiments, such as Figure 5 As shown, the adjusting rod 13 is pivotally connected to the fixed bracket 24 via a pivot. The elastic element includes a torsion spring 15, which is sleeved on the pivot. The two ends of the torsion spring 15 are connected to the adjusting rod 13 and the fixed bracket 24, respectively.

[0066] The torsion spring 15 is easy and convenient to assemble on the slide rail device 20. The slide rail device 20 has a compact structure and occupies little space.

[0067] Specifically, such as Figure 5 As shown, the pivot is a bolt that connects the upper bracket 241 and the lower bracket 242.

[0068] The all-terrain vehicle according to an embodiment of the present invention includes a body 40, a base 10, a seat 30, and at least two slide rail devices 20 as described in any of the above embodiments. At least two guide rails 21 extend along a first direction and are spaced apart along a second direction. The first direction is orthogonal to the second direction. The base 10 is connected to the seat 30. One of the body 40 and the base 10 is connected to the guide rail 21. A first pulley 22 and a second pulley 23 are rotatably mounted on the other of the body 40 and the base 10.

[0069] The technical advantages of the all-terrain vehicle according to the embodiments of the present invention are the same as those of the slide rail device 20 in the above embodiments, and will not be repeated here.

[0070] It should be noted that the installation of at least two sliding rail devices 20 makes the sliding of the seat 30 relative to the vehicle body 40 in the length direction more stable and smooth. The first direction is the length direction of the all-terrain vehicle, and the second direction is the width direction of the all-terrain vehicle.

[0071] In some embodiments, such as Figures 2-4 As shown, there are two slide rail devices 20, with two guide rails 21 connected to the vehicle body 40. The base 10 includes a first bracket 11 and a second bracket 12. The first pulley 22 and the second pulley 23 are rotatably mounted on the first bracket 11. The seat 30 is detachably connected to the second bracket 12.

[0072] The first pulley 22 and the second pulley 23 are lighter than the guide rail 21. By fixing the guide rail 21 to the vehicle body 40, the sliding of the fixed bracket 24 containing the first pulley 22 and the second pulley 23 relative to the guide roller is more effortless. Furthermore, by splitting the base 10 into a first bracket 11 for mounting the first pulley 22 and the second pulley 23 and a second bracket 12 for mounting the seat 30, the probability of interference between the seat 30 and the slide rail device 20 is reduced.

[0073] For example, the first pulley 22 and the second pulley 23 are rotatably mounted on the fixed bracket 24, and the fixed bracket 24 is fixedly mounted on the first bracket 11. The first bracket 11 is a U-shaped plate with its opening facing downward and extending along the length direction of the all-terrain vehicle. Each base 10 corresponds to two first brackets 11, and the two first brackets 11 are arranged at intervals along the width direction of the all-terrain vehicle.

[0074] In some embodiments, such as Figure 2 and Figure 3As shown, the second bracket 12 includes a first connecting rod 121 and a second connecting rod 122. Both the first connecting rod 121 and the second connecting rod 122 extend along a second direction and are arranged at intervals along a first direction. The seat 30 includes a seat 30 frame and a locking hook 50. The bottom of the seat 30 frame is provided with a first slot 301 and a second slot 302. The first slot 301 is fitted onto the first connecting rod 121. The seat 30 frame is pivotable relative to the first connecting rod 121 and has a first position and a second position. When the seat 30 frame is in the first position, the second connecting rod 122 is engaged in the second slot 302. When the seat 30 frame is in the second position, the second connecting rod 122 is disengaged from the second slot 302. The locking hook 50 is pivotally connected to the seat 30 frame. When the seat 30 frame is in the first position, the locking hook 50 is engaged with the second connecting rod 122.

[0075] Therefore, the connection between the seat 30 and the second bracket 12 is convenient and has high strength. At the same time, the seat 30 can be disassembled simply by releasing the locking hook 50 from the second connecting rod 122, making the disassembly of the seat 30 simple and convenient.

[0076] Specifically, such as Figure 2 As shown, the two ends of the first connecting rod 121 are respectively connected to the rear ends of the two first supports 11, and the two ends of the second connecting rod 122 are respectively connected to the front ends of the two second supports 12. The locking hook 50 is rotatably mounted on the bottom of the seat 30 frame near the front end. The locking hook 50 has a C-shaped groove for engaging with the second connecting rod 122. When the seat 30 frame is in the first position, the C-shaped groove of the locking hook 50 is fitted onto the second connecting rod 122, thereby achieving relative fixation of the second connecting rod 122 and the seat 30 frame in the height direction.

[0077] In some embodiments, the first link 121 is higher than the second link 122, the depth direction of the second slot 302 is orthogonal to the first direction and the second direction, and the depth direction of the first slot 301 is at an angle to the depth direction of the second slot 302.

[0078] Specifically, the depth direction of the second slot 302 is aligned with the height direction of the vehicle body 40, while the depth direction of the first slot 301 is tilted backward, meaning the opening of the first slot 301 is downward and rearward. When it is necessary to remove the seat 30, such as... Figure 2 As shown, first, pry the locking hook 50 forward to disengage it from the second link 122. Then, drive the seat 30 frame to pivot upward relative to the first link 121 so that the second slot 302 moves away from the second link 122. Finally, move the seat 30 in the opposite direction to the opening of the first slot 301, so that the first slot 301 moves away from the first link 121, thus completing the removal of the seat 30. When it is necessary to install the seat 30, as follows... Figure 3As shown, the seat 30 is moved along the opening direction of the first slot 301 so that the first slot 301 is fitted onto the first connecting rod 121. Then, the front end of the seat 30 frame is pressed down so that the second slot 302 is fitted onto the second connecting rod 122. Then, the locking hook 50 is rotated so that the locking hook 50 engages with the second connecting rod 122, thereby completing the installation of the seat 30.

[0079] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0080] 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 at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0081] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0082] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0083] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0084] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A slide rail device, characterized in that, include: The guide rail (21), the first pulley (22) and the second pulley (23) are provided. The guide rail (21) is disposed between the first pulley (22) and the second pulley (23) and is configured to move relative to the first pulley (22) and the second pulley (23). The first pulley (22) and the second pulley (23) overlap in the horizontal projection portion.

2. The slide rail device according to claim 1, characterized in that, The guide rail (21) has at least one first protrusion facing the first pulley (22), the first protrusion extending along the length direction of the guide rail (21); And / or, the guide rail (21) has at least one second protrusion toward the second pulley (23), the second protrusion extending along the length direction of the guide rail (21).

3. The slide rail device according to claim 1, characterized in that, At least one of the first pulley (22) and the second pulley (23) is a cam or at least one is a concave wheel.

4. The slide rail device according to claim 1, characterized in that, The slide rail device also includes a fixed bracket (24), on which the first pulley (22) and the second pulley (23) are rotatably mounted. The first pulley (22) and the second pulley (23) are respectively disposed above and below the guide rail (21).

5. The slide rail device according to claim 4, characterized in that, The top surface of the guide rail (21) is a convex curved surface, and the first pulley (22) is a concave pulley. The first pulley (22) rolls with the top surface of the guide rail (21).

6. The slide rail device according to claim 4, characterized in that, The guide rail (21) has a downward-facing guide groove that extends along the length of the guide rail (21). The second pulley (23) is a cam that rolls with the inner surface of the guide groove.

7. The slide rail device according to claim 6, characterized in that, The bottom surface of the guide groove is a concave curved surface, and the outer contour of the cross-section of the outer peripheral surface of the second pulley (23) matches the outer contour of the cross-section of the bottom surface of the guide groove.

8. The slide rail device according to claim 6, characterized in that, The guide groove extends through the guide rail (21) along its length, and the wall thickness of the guide rail (21) is equal at all positions.

9. The slide rail device according to claim 4, characterized in that, The fixed bracket (24) includes an upper bracket (241) and a lower bracket (242). The upper bracket (241) and the lower bracket (242) are detachably connected. A first pulley (22) is rotatably mounted on the upper bracket (241), and a second pulley (23) is rotatably mounted on the lower bracket (242).

10. The slide rail device according to claim 4, characterized in that, The guide rail (21) is provided with a plurality of positioning holes (211), which are spaced apart along the length of the guide rail (21). The slide rail device further includes: Adjusting rod (13), which is connected to the fixed bracket (24) and is pivotable between a locked position and an unlocked position; Locking rod (14), the locking rod (14) is connected to the adjusting rod (13). When the adjusting rod (13) is in the locked position, the locking rod (14) is engaged in any one of the positioning holes (211). When the adjusting rod (13) is in the unlocked position, the locking rod (14) is disengaged from any one of the positioning holes (211). An elastic element connects the adjusting rod (13) and the fixed bracket (24), and the elastic element presses the adjusting rod (13) toward the locking position.

11. The slide rail device according to claim 10, characterized in that, The adjusting rod (13) is pivotally connected to the fixed bracket (24) via a pivot. The elastic element includes a torsion spring (15), which is sleeved on the pivot. The two ends of the torsion spring (15) are respectively connected to the adjusting rod (13) and the fixed bracket (24).

12. An all-terrain vehicle, characterized in that, The device includes a vehicle body (40), a base (10), a seat (30), and at least two slide rail devices as described in any one of claims 1-11, wherein at least two of the guide rails (21) extend along a first direction and are spaced apart along a second direction, the first direction being orthogonal to the second direction, the base (10) being connected to the seat (30), one of the vehicle body (40) and the base (10) being connected to the guide rail (21), and the first pulley (22) and the second pulley (23) being rotatably mounted on the other of the vehicle body (40) and the base (10).

13. The all-terrain vehicle according to claim 12, characterized in that, There are two slide rail devices, and the two guide rails (21) are connected to the vehicle body (40). The base (10) includes a first bracket (11) and a second bracket (12). The first pulley (22) and the second pulley (23) are rotatably mounted on the first bracket (11). The seat (30) is detachably connected to the second bracket (12).

14. The all-terrain vehicle according to claim 13, characterized in that, The second support (12) includes a first link (121) and a second link (122), both extending along the second direction and spaced apart along the first direction. The seat (30) includes: A seat (30) frame, the bottom of which is provided with a first slot (301) and a second slot (302), the first slot (301) being fitted onto the first connecting rod (121), the seat (30) frame being pivotable relative to the first connecting rod (121) and having a first position and a second position, the seat (30) frame being in the first position, the second connecting rod (122) being engaged in the second slot (302), the seat (30) frame being in the second position, the second connecting rod (122) being disengaged from the second slot (302); and A locking hook (50) is pivotally connected to the seat (30) frame. When the seat (30) frame is in the first position, the locking hook (50) engages with the second link (122).

15. The all-terrain vehicle according to claim 14, characterized in that, The first link (121) is higher than the second link (122), the depth direction of the second slot (302) is orthogonal to the first direction and the second direction, and the depth direction of the first slot (301) is at an angle to the depth direction of the second slot (302).

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