Sliding door assembly for a vehicle and vehicle

Abstract

This invention provides a sliding door assembly for a vehicle and a vehicle. The sliding door assembly includes: a door body configured to slide relative to the vehicle body, with a swing arm rail provided on one side of the door body; a swing arm, a first end of which is rotatably connected to the vehicle body, and a second end of which is slidably connected to the swing arm rail. The second end of the swing arm can rotate under its own weight along the swing arm rail from top to bottom around the first end of the swing arm, thereby pushing the door body to slide from front to back to open the door body. Furthermore, when pushing the door body to slide from back to front, it can drive the second end of the swing arm to rotate along the swing arm rail from bottom to top around the first end of the swing arm to close the door body. According to the sliding door assembly of this invention, after unlocking, the horizontal opening movement of the door body can be automatically completed using the gravity of the swing arm, thus making it more convenient and effortless to open the door body.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more particularly to a sliding door assembly for a vehicle and the vehicle itself. Background Technology

[0002] In the existing technology, there are two main types of vehicle doors: hinged rotating doors and track sliding doors.

[0003] Hinged rotating doors open outwards, requiring a certain amount of space to open. For certain delivery industries, vehicles are small and often park in very confined spaces, making hinged rotating doors inconvenient and reducing work efficiency for delivery personnel who frequently get in and out of the vehicle.

[0004] Sliding doors can solve the problem of door opening space, but the traditional sliding door opening method is not convenient or labor-saving. Summary of the Invention

[0005] One object of the present invention is to provide a sliding door assembly and a vehicle that enables the opening of the door body more conveniently and effortlessly.

[0006] According to one aspect of the present invention, a sliding door assembly for a vehicle is provided, the sliding door assembly comprising: a door body configured to slide relative to the vehicle body, a swing arm rail provided on one side of the door body; a swing arm, a first end of the swing arm being rotatably connected to the vehicle body, and a second end of the swing arm being slidably connected to the swing arm rail, wherein the second end of the swing arm is capable of rotating under its own weight along the swing arm rail from top to bottom around the first end of the swing arm, thereby pushing the door body to slide from front to back to open the door body, and when pushing the door body to slide from back to front, it is capable of driving the second end of the swing arm to rotate along the swing arm rail from bottom to top around the first end of the swing arm to close the door body.

[0007] Optionally, the swing arm slide rail extends in a vertical direction.

[0008] Optionally, the sliding door assembly further includes a lock body and a latch capable of locking onto the lock body, the latch being disposed on the swing arm, and the lock body being for mounting on the vehicle.

[0009] Optionally, the sliding door assembly further includes an upper slide rail, a lower slide rail, a first pulley group, and a second pulley group. The upper slide rail and the lower slide rail are arranged along the length direction of the vehicle and fixed to the vehicle. The first pulley group and the second pulley group are respectively arranged at the upper end and the lower end of the door body and are slidably connected to the upper slide rail and the lower slide rail, respectively.

[0010] Optionally, the first pulley assembly includes a first pulley bracket and a first pulley, with the first pulley bracket fixed to the upper end of the door body and the first pulley fixed to the first pulley bracket. The second pulley assembly includes a second pulley bracket and a second pulley, with the second pulley bracket fixed to the lower end of the door body and the second pulley fixed to the second pulley bracket.

[0011] Optionally, the first pulley includes a load-bearing wheel and a guide wheel, the upper slide rail includes a support frame and an upper guide groove, the load-bearing wheel is supported by the support frame, and the guide wheel is slidably disposed within the upper guide groove. The lower slide rail includes a lower guide groove, and the second pulley is slidably disposed within the lower guide groove.

[0012] Optionally, the first pulley group is configured as two groups, with the two groups of first pulley groups being arranged separately on both sides of the door body. The second pulley group is configured as two groups, with the two groups of second pulley groups being arranged separately on both sides of the door body.

[0013] Optionally, the second end of the swing arm is provided with a swing arm pulley, and the swing arm pulley is slidably connected to the swing arm slide rail.

[0014] According to another aspect of the invention, a vehicle is provided, the vehicle including the sliding door assembly of the vehicle as described above.

[0015] Optionally, the swing arm slide rail is configured to be close to the first column of the vehicle, and the first end of the swing arm is rotatably connected to the second column of the vehicle.

[0016] According to the sliding door assembly of the present invention, after unlocking, the horizontal opening movement of the door body can be automatically completed by the gravity of the swing arm, thus making it more convenient and less labor-intensive to open the door body.

[0017] The sliding door assembly according to the present invention can save opening space compared with the hinged rotating door of the prior art, and can save the number of guide rails compared with the traditional three-rail sliding door guide rail. Attached Figure Description

[0018] The above and other objects, features and advantages of the present invention will become clearer from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0019] Figure 1 This is a schematic diagram of a sliding door assembly according to an embodiment of the present invention;

[0020] Figure 2 yes Figure 1 A schematic diagram of the sliding door assembly after removing the upper and lower tracks;

[0021] Figure 3 This is an exploded perspective view of a sliding door assembly according to an embodiment of the present invention;

[0022] Figures 4 to 7 These are schematic diagrams of the closed state, half-open state, and open state of the sliding door assembly according to an embodiment of the present invention, wherein the first pillar and the second pillar of the vehicle are shown.

[0023] Figure 8 It is along Figure 1 A cross-sectional view taken from the GG line;

[0024] Figure 9 It is along Figure 1 A cross-sectional view taken from the HH line;

[0025] Figure 10 It is along Figure 2 A cross-sectional view taken from line II;

[0026] Figure 11 This is a schematic diagram of a swing arm according to an embodiment of the present invention;

[0027] Figure 12 This is an exploded perspective view of the door body, the first pulley group, and the second pulley group according to an embodiment of the present invention.

[0028] Explanation of symbols in the attached drawings: 100-Sliding door assembly, 110-Door body, 110-Closing door body, 110a-Main door panel, 110b-Glass door panel, 111-Swing arm rail, 112-Extension bracket, 113-Connecting bracket, 120-Swing arm, 121-Swing arm mounting bracket, 122-Swing arm pivot, 123-Swing arm pulley bracket, 124-Swing arm pulley, 130-Upper rail, 131-Support bracket, 132-Upper... Guide groove, 140-lower slide rail, 141-lower guide groove, 150-first pulley group, 151-first pulley bracket, 151a-load-bearing wheel bracket, 151b-guide wheel bracket, 152-first pulley, 152a-load-bearing wheel, 152b-guide wheel, 160-second pulley group, 161-second pulley bracket, 162-second pulley, 170-lock body, 180-lock buckle, 210-first column, 220-second column. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] 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. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0031] The following will refer to Figures 1 to 12 A sliding door assembly according to an embodiment of the present invention and a vehicle including the sliding door assembly are described in detail.

[0032] Figure 1 This is a schematic diagram of a sliding door assembly according to an embodiment of the present invention. Figure 2 yes Figure 1 A schematic diagram of a sliding door assembly after removing the upper and lower tracks. Figure 3 This is an exploded perspective view of a sliding door assembly according to an embodiment of the present invention. Figures 4 to 7 These are schematic diagrams of the sliding door assembly in the closed to open states according to embodiments of the present invention, showing the first and second pillars of the vehicle. Figure 8 It is along Figure 1 A cross-sectional view taken from the GG line. Figure 9 It is along Figure 1 A cross-sectional view taken from the HH line. Figure 10 It is along Figure 2 A cross-sectional view taken from line II. Figure 11 This is a schematic diagram of a swing arm according to an embodiment of the present invention. Figure 12 This is an exploded perspective view of the door body, the first pulley group, and the second pulley group according to an embodiment of the present invention.

[0033] like Figures 1 to 7 As shown, the sliding door assembly 100 according to an embodiment of the present invention may include: a door body 110, configured to slide relative to the vehicle body, and a swing arm rail 111 provided on one side of the door body 110; a swing arm 120, the first end of the swing arm 120 being rotatably connected to the vehicle body, and the second end of the swing arm 120 being slidably connected to the swing arm rail 111, the second end of the swing arm 120 being able to rotate from top to bottom around the first end of the swing arm 120 under its own weight along the swing arm rail 111, thereby pushing the door body 110 to slide from front to back to open the door body 110, and when pushing the door body 110 to slide from back to front, being able to push the second end of the swing arm 120 to rotate from bottom to top around the first end of the swing arm 120 along the swing arm rail 111 to close the door body 110.

[0034] like Figure 1 and Figure 2As shown, a sliding door assembly 100 according to an embodiment of the present invention may include a door body 110. The door body 110 may be configured to slide relative to the vehicle body. For example, the door body 110 may be mounted to the vehicle body via pulleys and rails, the structure of which will be described later.

[0035] like Figure 1 As shown, a swing arm rail 111 may be provided on one side of the door body 110, and the sliding door assembly 100 may also include a swing arm 120 that cooperates with the swing arm rail 111. Figure 1 As shown, the first end (i.e., the left end) of the swing arm 120 is rotatably connected to the vehicle body (e.g., the second pillar 220, which will be described later). That is, the first end (left end) of the swing arm 120 is not connected to the door body 110. The second end (right end) of the swing arm 120 is slidably connected to the swing arm rail 111.

[0036] To secure the second end of the swing arm 120 to a predetermined position (e.g., the uppermost section of the swing arm rail 111), the sliding door assembly according to an embodiment of the invention may further include a door lock, thereby locking the swing arm 120 to the vehicle body (e.g., the first pillar 210, described later) and keeping the door body 110 closed. According to an embodiment of the invention, the door lock can be opened or closed electrically or manually, both inside and outside the vehicle.

[0037] Specifically, such as Figure 3 and Figure 10 As shown, the sliding door assembly 100 may include a lock body 170 and a latch 180 cooperating with the lock body 170. The latch 180 is disposed on a swing arm 120, and the lock body 170 is for mounting on a vehicle (e.g., a first pillar 210, which will be described later). As an example, the latch 180 is disposed at a second end of the swing arm 120.

[0038] According to an embodiment of the present invention, when the latch 180 is locked onto the lock body 170, the second end of the swing arm 120 is locked onto the vehicle, keeping the door body 110 closed, i.e., the vehicle door is closed. When the latch 180 is released from the locking state of the lock body 170, since the first end (left end) of the swing arm 120 is rotatably connected to the vehicle body, the second end (right end) of the swing arm 120, which is released from constraint, rotates around the first end (left end) of the swing arm 120 under its own weight. Since the second end (right end) of the swing arm 120 is slidably connected to the swing arm slide rail 111 from top to bottom, the second end (right end) of the swing arm 120 slides from top to bottom along the swing arm slide rail 111, that is, the downward sliding of the second end (right end) of the swing arm 120... The movement and rotation of the swing arm 120 around the first end (left end) of the swing arm 120 are carried out simultaneously. Since the swing arm 120 is a rigid structure, when the swing arm 120 rotates around the first end (left end) fixed to the vehicle body under its own weight, the length of the swing arm 120 remains unchanged. The movement trajectory of the second end (right end) of the swing arm 120 is constrained in the swing arm slide rail 111 from top to bottom. Therefore, it will pull the door body 110 to move backward, thereby realizing the sliding movement of the door body 110 from the front of the vehicle to the rear of the vehicle to open the door body 110.

[0039] When the door body 110 is pushed to slide from the rear of the vehicle toward the front of the vehicle, the second end of the swing arm 120 can be driven to rotate along the swing arm slide rail 111 from bottom to top around the first end of the swing arm 120 to close the door body 110.

[0040] In other words, the sliding door assembly 100 according to an embodiment of the present invention can automatically complete the horizontal opening movement of the door body 110 by utilizing the gravity of the swing arm 120 after unlocking, thus making it more convenient and effortless to open the door body 110. Furthermore, compared to the hinged rotating door of the prior art, it saves opening space. And compared to the traditional three-rail sliding door guide rails, it saves the number of guide rails.

[0041] According to an embodiment of the present invention, in order to make it easier for the second end of the swing arm 120 to slide down under its own weight, the swing arm slide rail 111 may extend in a vertical direction. Additionally, as an example, the swing arm slide rail 111 may be disposed near the lower part of the door body 110, that is, the swing arm slide rail 111 may be disposed in the lower half of the door body 110, thereby making it easier to open or close the door lock.

[0042] The following description will use the door body 110 as an example of a logistics vehicle door. However, it should be understood that, where installation conditions permit, the sliding door assembly according to the present invention can also be used as a door for other types of vehicles.

[0043] like Figure 3 As shown, the vehicle may include a first pillar 210 and a second pillar 220, wherein the first pillar 210 is the A-pillar of the vehicle and the second pillar 220 is the B-pillar of the vehicle.

[0044] According to an embodiment of the present invention, the first end of the swing arm 120 can be rotatably connected to the second pillar 220 of the vehicle, and the lock body 170 can be fixed to the first pillar 210 of the vehicle. Specifically, as Figure 3 and Figure 11 As shown, a swing arm mounting bracket 121 may be provided at the first end of the swing arm 120, and the swing arm mounting bracket 121 is fixed to the second column 220. The first end of the swing arm 120 can be accommodated in the swing arm mounting bracket 121 and can be rotatably connected to the swing arm mounting bracket 121 through the swing arm pivot 122. Thus, the swing arm 120 can rotate about the first end of the swing arm 120 relative to the swing arm mounting bracket 121.

[0045] like Figure 3 , Figure 10 and Figure 11 As shown, a swing arm 120 has a swing arm pulley bracket 123 at its second end, and a swing arm pulley 124 is mounted on the swing arm pulley bracket 123. The swing arm pulley 124 is slidably connected to the swing arm slide rail 111. Thus, the second end of the swing arm 120 can slide along the swing arm slide rail 111 via the swing arm pulley 124.

[0046] The above shows the specific configuration of the first and second ends of the swing arm 120. However, the present invention is not limited to this. As long as the first end of the swing arm 120 can be rotatably connected to the second column 220 and the second end of the swing arm 120 can be slidably connected to the swing arm slide rail 111, it is acceptable.

[0047] Furthermore, according to embodiments of the present invention, the specific shape of the swing arm 120 is not limited, and it can be reasonably designed according to its installation position, etc.

[0048] According to embodiments of the present invention, such as Figure 1 , Figures 3 to 7 As shown, the sliding door assembly may also include an upper slide rail 130, a lower slide rail 140, a first pulley group 150, and a second pulley group 160, for realizing the sliding of the door body 110 relative to the vehicle body.

[0049] The upper slide rail 130 and the lower slide rail 140 can be arranged along the length direction of the vehicle and fixed to the vehicle body. For example, the upper slide rail 130 and the lower slide rail 140 can be separated along the height direction and fixed to the upper crossbeam and the lower crossbeam of the vehicle, respectively. However, the fixing positions of the upper slide rail 130 and the lower slide rail 140 are not limited to this.

[0050] Furthermore, the lengths of the upper slide rail 130 and the lower slide rail 140 are not limited. Although the accompanying drawings show that the length of the upper slide rail 130 is set to be longer than that of the lower slide rail 140, the present invention is not limited thereto, and the lengths of the upper slide rail 130 and the lower slide rail 140 can be reasonably set according to the sliding distance of the door body 110.

[0051] According to an embodiment of the present invention, the first pulley group 150 and the second pulley group 160 may be respectively disposed at the upper end and the lower end of the door body 110 and are slidably connected to the upper slide rail 130 and the lower slide rail 140 respectively.

[0052] According to embodiments of the present invention, such as Figure 3 As shown, the first pulley group 150 can be configured as two groups, with the two groups of first pulley groups 150 being separately arranged on both sides of the door body 110. Similarly, the second pulley group 160 can also be configured as two groups, with the two groups of second pulley groups 160 being separately arranged on both sides of the door body 110. By providing two groups of first pulley groups 150 and second pulley groups 160 on both sides of the door body 110, the stability of the door body 110 in terms of support and sliding can be ensured.

[0053] According to embodiments of the present invention, the specific structures of the upper slide rail 130, the lower slide rail 140, the first pulley group 150, and the second pulley group 160 are not limited, as long as the first pulley group 150 and the second pulley group 160 can be slidably connected to the upper slide rail 130 and the lower slide rail 140 respectively.

[0054] As a specific example, such as Figure 8 As shown, the upper slide rail 130 may include a support frame 131 and an upper guide groove 132. The first pulley assembly 150 may include a first pulley bracket 151 and a first pulley 152. The first pulley bracket 151 is fixed to the upper end of the door body 110, and the first pulley 152 is fixed to the first pulley bracket 151. The first pulley 152 may include a load-bearing wheel 152a and a guide wheel 152b. Correspondingly, the first pulley bracket 151 may include a load-bearing wheel bracket 151a and a guide wheel bracket 151b that respectively support the load-bearing wheel 152a and the guide wheel 152b.

[0055] According to an embodiment of the present invention, the load-bearing wheel 152a is supported on the support frame 131, thereby supporting the weight of the door body 110 through the support frame 131 and the load-bearing wheel 152a. In addition, the guide wheel 152b is slidably disposed in the upper guide groove 132, which serves as a guide, thereby limiting the sliding direction of the guide wheel 152b.

[0056] In order to fix the first pulley bracket 151 to the upper end of the door body 110, an extension bracket 112 and a connecting bracket 113 connected to each other can also be provided at the upper end of the door body 110. The extension bracket 112 can be connected to the upper end of the door body 110 and can extend toward the upper slide rail 130. The connecting bracket 113 can further extend toward the upper slide rail 130 and can be configured to support the first pulley bracket 151.

[0057] According to embodiments of the present invention, such as Figure 9 As shown, the second pulley assembly 160 may include a second pulley bracket 161 and a second pulley 162. The second pulley bracket 161 is fixed to the lower end of the door body 110, and the second pulley 162 is fixed to the second pulley bracket 161. The lower slide rail 140 may include a lower guide groove 141, and the second pulley 162 is slidably disposed within the lower guide groove 141. The lower guide groove 141 serves a guiding function, thereby limiting the sliding direction of the second pulley 162. The second pulley assembly 160 may not have a load-bearing wheel, but only a second pulley 162 for guiding and sliding.

[0058] According to embodiments of the present invention, such as Figure 3 and Figure 12 As shown, the door body 110 may include a main door panel 110a and a glass door panel 110b. The glass door panel 110b may be made of polyethylene (PE). However, the door body 110 according to embodiments of the present invention is not limited to this, but may adopt any form of door body structure.

[0059] When the door body 110 includes a main door panel 110a and a PE glass door panel 110b, the first pulley assembly 150 and the second pulley assembly 160, as described above, can be respectively installed on the main door panel 110a.

[0060] Furthermore, according to embodiments of the present invention, such as Figure 3 and Figure 12 As shown, the swing arm slide rail 111 can be mounted on the main door panel 110a, and the swing arm slide rail 111 can be an additional slide rail fixed to the main door panel 110a. However, the present invention is not limited to this, and the swing arm slide rail 111 can also be a slide rail formed by opening a groove in the main door panel 110a.

[0061] The following will refer to Figures 4 to 7 To describe the opening and closing operations of the sliding door assembly 100 according to an embodiment of the present invention. Figure 4 The fully closed state of the sliding door assembly is shown. Figure 5 and Figure 6 This shows the state of the sliding door assembly in the half-open position. Figure 7 The sliding door assembly is shown in its fully open state.

[0062] According to the present invention, the first end (left end) of the swing arm 120 is rotatably connected to the vehicle body, the second end (right end) of the swing arm 120 is slidably connected to the swing arm slide rail 111, and the upper and lower ends of the door body 110 are slidably connected to the upper slide rail 130 and the lower slide rail 140. When the driver unlocks the door manually or electrically, the locking state of the latch 180 and the lock body 170 is released, and the second end of the swing arm 120 is driven by its own weight and has a tendency to rotate around the first end of the swing arm 120. When the self-weight driving force of the swing arm 120 is greater than the resistance of the door body 110 sliding backward, the second end of the swing arm 120 can rotate along the swing arm slide rail 111 from top to bottom (the movement trajectory of the second end of the swing arm 120 within the swing arm slide rail 111 is S2) around the swing arm pivot 122 along an arc S1 (with the center of the swing arm pivot 122 as the center and the length from the center of the swing arm pivot 122 to the center of the swing arm pulley 124 as the radius), thereby pushing the door body 110 to slide from the front of the vehicle toward the rear of the vehicle (from right to left) to open the door body 110. Figure 4 The positions shown pass through in sequence Figure 5 and Figure 6 The position shown eventually slides to Figure 7 The location shown.

[0063] If the driver wants to lock the door from the outside of the vehicle, they can push the door body 110 to slide from back to front (from left to right), thereby causing the second end of the swing arm 120 to rotate from bottom to top around the first end of the swing arm 120 along the swing arm slide rail 111 to close the door body 110. During this process, the door body 110 moves from... Figure 7 The positions shown pass through in sequence Figure 6 and Figure 5 The position shown eventually slides to Figure 4 The location is shown. Then, the door lock can be activated manually or electrically (i.e., locking the door body 110) to prevent the door body 110 from sliding further. It should be understood that for logistics vehicles, the driver may choose not to close the door body 110 after getting out of the vehicle, but instead close it after getting back in. In this case, the driver can push the door body 110 from inside the vehicle to close and lock the door body 110.

[0064] The above describes examples of sliding door assemblies according to embodiments of the present invention. According to another embodiment of the present invention, a vehicle including the sliding door assembly described above may also be provided. As described above, the vehicle may include a first pillar 210 and a second pillar 220, the first pillar 210 being the A-pillar of the vehicle and the second pillar 220 being the B-pillar of the vehicle. It should be understood that the above-described sliding door assembly may be installed on both sides or one side of the vehicle, without specific limitation.

[0065] In addition, as mentioned above, the type of vehicle can be a logistics vehicle. However, if the installation conditions permit, the above-mentioned sliding door assembly can also be installed on other types of vehicles. The present invention does not impose specific restrictions on the type of vehicle.

[0066] The installation or connection relationship between the sliding door assembly and the first column 210 and the second column 220 has been explained above, and will not be described redundantly here.

[0067] As described above, the sliding door assembly according to the present invention can automatically complete the horizontal opening movement of the door body by utilizing the gravity of the swing arm after unlocking, thus making it more convenient and effortless to open the door body; and the rigid structure of the swing arm also protects the occupants, increasing the safety of the door.

[0068] Furthermore, the sliding door assembly according to the present invention can save opening space compared with the hinged rotating door of the prior art, and can save the number of guide rails compared with the traditional three-rail sliding door guide rail.

[0069] Although exemplary embodiments of the invention have been specifically described with reference to exemplary embodiments thereof, those skilled in the art should understand that various changes in form and detail may be made thereto without departing from the spirit and scope of the invention as defined by the claims.

Claims

1. A sliding door assembly for a vehicle, characterized by The sliding door assembly (100) includes: The door body (110) is configured to slide relative to the vehicle body, and a swing arm slide rail (111) is provided on one side of the door body (110); A swing arm (120), the first end of which is rotatably connected to the vehicle body, and the second end of which is slidably connected to the swing arm slide rail (111). The second end of the swing arm (120) can rotate around the first end of the swing arm (120) from top to bottom along the swing arm slide rail (111) under its own weight, thereby pushing the door body (110) to slide from front to back to open the door body (110). When pushing the door body (110) to slide from back to front, it can drive the second end of the swing arm (120) to rotate around the first end of the swing arm (120) from bottom to top along the swing arm slide rail (111) to close the door body (110).

2. The sliding door assembly of claim 1, wherein, The swing arm slide rail (111) extends in the vertical direction.

3. The sliding door assembly of claim 1, wherein, The sliding door assembly (100) also includes a lock body (170) and a latch (180) capable of locking onto the lock body (170), the latch (180) being disposed on the swing arm (120), and the lock body (170) being for mounting on the vehicle.

4. The sliding door assembly of claim 1, wherein, The sliding door assembly further includes an upper slide rail (130), a lower slide rail (140), a first pulley group (150), and a second pulley group (160). The upper slide rail (130) and the lower slide rail (140) are arranged along the length direction of the vehicle and fixed to the vehicle. The first pulley group (150) and the second pulley group (160) are respectively arranged at the upper end and the lower end of the door body (110) and are slidably connected to the upper slide rail (130) and the lower slide rail (140).

5. The sliding door assembly of claim 4, wherein, The first pulley assembly (150) includes a first pulley bracket (151) and a first pulley (152). The first pulley bracket (151) is fixed to the upper end of the door body (110), and the first pulley (152) is fixed to the first pulley bracket (151). The second pulley assembly (160) includes a second pulley bracket (161) and a second pulley (162). The second pulley bracket (161) is fixed to the lower end of the door body (110), and the second pulley (162) is fixed to the second pulley bracket (161).

6. The sliding door assembly of claim 5, wherein, The first pulley (152) includes a load-bearing wheel (152a) and a guide wheel (152b). The upper slide rail (130) includes a support frame (131) and an upper guide groove (132). The load-bearing wheel (152a) is supported by the support frame (131), and the guide wheel (152b) is slidably disposed in the upper guide groove (132). The lower slide rail (140) includes a lower guide groove (141), and the second pulley (162) is slidably disposed in the lower guide groove (141).

7. The sliding door assembly for a vehicle according to claim 4, characterized in that, The first pulley assembly (150) is configured as two sets, with the two sets of the first pulley assembly (150) arranged separately on both sides of the door body (110). The second pulley assembly (160) is configured as two sets, with the two sets of the second pulley assembly (160) being arranged separately on both sides of the door body (110).

8. The sliding door assembly of claim 1, wherein, The second end of the swing arm (120) is provided with a swing arm pulley (124), and the swing arm pulley (124) is slidably connected to the swing arm slide rail (111).

9. A vehicle, characterized in that, The vehicle includes a sliding door assembly (100) of the vehicle according to any one of claims 1 to 8.

10. The vehicle according to claim 9, characterized in that, The swing arm slide rail (111) is positioned close to the first column (210) of the vehicle, and the first end of the swing arm (120) is rotatably connected to the second column (220) of the vehicle.

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