Seat assembly and sliding rail device

Abstract

A seat assembly and a slide rail device, the slide rail device comprising: a slide rail unit (1000) comprising an inner rail (1100) and an outer rail (1200); the shielding unit (2000) comprises a zipper head (2100) and two shielding strips (2200), the two shielding strips (2200) are both provided with zipper racks (2210), and the zipper head (2100) is connected with the two zipper racks (2210); the zipper head (2100) comprises two restraining plates and a connecting column (2130); the supporting unit (3000) is installed on the inner rail (1100), the supporting unit (3000) is connected with the zipper head (2100), and the supporting unit (3000) comprises a first supporting part (3100) and a second supporting part (3200); the first supporting part (3100) transversely supports the zipper rack (2210) in an unzipped state, and a transverse gap is formed between the zipper rack (2210) and the connecting column (2130); the second supporting part (3200) vertically supports the zipper rack (2210) in the unzipped state, and a vertical gap is formed between the zipper rack (2210) and at least one of the two restraining plates.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle seat, in particular to a seat assembly and a slide rail device. BACKGROUND

[0002] The seat assembly comprises a seat body and a slide rail device, the slide rail device comprises an inner rail and an outer rail, the inner rail is connected with the seat body, the outer rail is connected with a vehicle floor, the inner rail is inserted into the outer rail and can slide in the outer rail to adjust the position of the seat body in the vehicle.

[0003] The length of the outer rail is generally longer than that of the inner rail, so the inner rail cannot effectively shield the outer rail. In use, particles such as stones or sundries may fall into the outer rail, thereby affecting the smoothness of the sliding between the inner rail and the outer rail. To this end, a slide rail device provided with a shielding unit is provided in the related art, the shielding unit comprises two shielding strips arranged oppositely and a zipper head, the two shielding strips are both mounted on the outer rail and are both provided with zipper racks, the zipper head is mounted on the inner rail and is connected with the zipper racks. With the movement of the inner rail relative to the outer rail, the zipper head can open and close the zipper racks of the two shielding strips. In the closed state, the shielding unit can shield the outer rail, which can reduce the possibility of particles such as stones or sundries falling into the outer rail, and is conducive to ensuring the smoothness of the sliding of the inner rail relative to the outer rail. However, the zipper head is easy to cause noise during the opening and closing of the zipper racks, which will affect the user experience.

[0004] Therefore, how to provide a scheme to overcome or alleviate the above-mentioned defects is still a technical problem to be solved by those skilled in the art. SUMMARY

[0005] The purpose of the present application is to provide a seat assembly and a slide rail device, wherein the operation noise of the slide rail device is relatively small, and the user experience can be improved.

[0006] To solve the above technical problems, the application provides a slide rail device, which comprises a slide rail unit, a shielding unit, and a supporting unit.

[0007] In the above scheme, the slide rail device is provided with the supporting unit, the supporting unit comprises a first supporting part and a second supporting part, the first supporting part can support the zipper rack in the horizontal direction in the open state, so that the horizontal gap is formed between the zipper rack and the connecting column, and the second supporting part can support the zipper rack in the vertical direction in the open state, so that the vertical gap is formed between the zipper rack and at least one of the two constraint plates. In this way, during the displacement of the zipper head relative to the zipper rack, the zipper rack is less likely to collide with the connecting column in the horizontal direction, and the zipper rack is also less likely to collide with the constraint plate in the vertical direction, so that the collision between the zipper rack and the zipper head can be relatively reduced, thereby reducing the collision noise and improving the quality of the slide rail device provided by the application, so as to improve the user experience.

[0008] In some embodiments, the supporting unit comprises a first connecting part and a second connecting part arranged in the longitudinal direction, the first connecting part is connected with the inner rail, and the second connecting part is connected with the zipper head.

[0009] In some embodiments, the first connecting part comprises two first connecting plates arranged oppositely, the first connecting plates are provided with first clamping members, and the first connecting part is connected with the inner rail through the first clamping members.

[0010] In some embodiments, the zipper head further comprises a hook part connected with one of the constraint plates, the second connecting part comprises two second connecting plates arranged oppositely, the second connecting plates are provided with second clamping members, and the second connecting part is connected with the hook part through the second clamping members.

[0011] In some embodiments, the zipper head further comprises a hook part connected with one of the constraint plates, and the second connecting part is provided with a connecting hole, and the hook part is fixedly installed in the connecting hole.

[0012] In some embodiments, the second connecting portion comprises a metal base and a non-metal structure, the non-metal structure is arranged on at least a part of the metal base, the connecting hole is located in the non-metal structure, and the non-metal structure forms the first support portion and the second support portion.

[0013] In some embodiments, the metal base is provided with an overflow hole, and the non-metal structure is partially located in the overflow hole.

[0014] In some embodiments, the first support portion is a first support column, the number of the first support columns is two, and the two first support columns are arranged in a transverse direction; or, the first support portion is a support surface, the number of the support surfaces is two, and the two support surfaces are arranged in a transverse direction; and / or, the second support portion is a second support column, the number of the second support columns is two, and the two second support columns are arranged in a transverse direction.

[0015] In some embodiments, the first support portion and the second support portion are both made of a non-metal material.

[0016] Embodiments of the present application also provide a seat assembly comprising a seat body and a slide rail device, the slide rail device being the slide rail device described above, and the seat body being connected to the inner rail. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural diagram of a slide rail unit;

[0018] Figure 2 is a connection structure diagram of an outer rail and a shielding unit;

[0019] Figure 3 is a connection structure diagram of a zipper head and a zipper rack;

[0020] Figure 4 is a structural diagram of a support unit;

[0021] Figure 5 is Figure 4 is a vertical projection view;

[0022] Figure 6 is Figure 4 is an exploded view;

[0023] Figure 7 is Figure 4 is a connection structure diagram of a support unit, an inner rail, a zipper head, and a zipper rack;

[0024] Figure 8 is a structural diagram of another support unit;

[0025] Figure 9 For Figure 8 Structure diagram from another perspective;

[0026] Figure 10 For Figure 8 Connection structure diagram of the support unit, the inner rail and the zipper head.

[0027] The following is the description of the reference signs:

[0028] 1000 sliding rail unit; 1100 inner rail; 1200 outer rail;

[0029] 2000 shielding unit; 2100 zipper head; 2110 first constraint plate; 2120 second constraint plate; 2130 connecting column; 2140 hook part; 2200 shielding strip; 2210 zipper rack;

[0030] 3000 support unit; 3100 first support part; 3200 second support part; 3300 first connecting part; 3310 first connecting plate; 3311 first clamping piece; 3312 guide surface; 3400 second connecting part; 3410 second connecting plate; 3411 second clamping piece; 3420 metal base body; 3421 base top plate; 3422 base side plate; 3422A through hole; 3423 base end plate; 3423A avoiding hole; 3430 non-metal structure; 3431 outer packaging side plate; 3432 outer packaging end plate; 3432A connecting hole. DETAILED DESCRIPTION

[0031] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0032] In the description of the embodiments of the present application, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0033] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, "connection" can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through intermediate medium.

[0034] The positional terms mentioned in the embodiments of the present application, such as "inner", "outer", and the like, are merely reference directions of the drawings, and thus the positional terms are used for better and clearer illustration and understanding of the embodiments of the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be understood as a limitation on the embodiments of the present application.

[0035] In the description of the embodiments of the present application, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0036] Reference is made to Figures 1-3 , Figure 1 for a structural diagram of the slide rail unit; Figure 2 for a connection structural diagram of the outer rail and the shielding unit; Figure 3 for a connection structural diagram of the zipper head and the zipper rack.

[0037] As shown in Figure 1 and Figure 2 , the embodiments of the present application provide a slide rail device, which may, for example, be applied to a vehicle to adjust the position of a seat body inside the vehicle. The slide rail device includes a slide rail unit 1000 and a shielding unit 2000.

[0038] The slide rail unit 1000 includes an inner rail 1100 and an outer rail 1200, the inner rail 1100 is inserted into the outer rail 1200 and can slide relative to the outer rail 1200. Taking the application to a vehicle as an example, the inner rail 1100 can be connected to the seat body, and the outer rail 1200 can be connected to the floor of the vehicle. The specific structural form of the inner rail 1100 and the outer rail 1200 is not limited here, and in actual application, a person skilled in the art can design according to specific needs as long as it can meet the requirements of use.

[0039] For ease of description, the longitudinal direction, the transverse direction and the vertical direction can be defined. Among them, the longitudinal direction refers to the sliding direction of the inner rail 1100 relative to the outer rail 1200, and also refers to the extension direction or length direction of the inner rail 1100 and the outer rail 1200; the transverse direction refers to the width direction of the inner rail 1100 and the outer rail 1200; the vertical direction refers to the direction of the relative arrangement of the inner rail 1100 and the outer rail 1200. Generally, any two of the longitudinal direction, the transverse direction and the vertical direction can be perpendicular.

[0040] The shielding unit 2000 comprises a zipper head 2100 and two shielding strips 2200.

[0041] The two shielding strips 2200 are arranged opposite to each other in the transverse direction and are fixedly installed on the outer rail 1200. Adjacent ends of the two shielding strips 2200, i.e., the transverse inner ends of the two shielding strips 2200, are provided with zipper racks 2210. The zipper head 2100 is connected with the two zipper racks 2210, and the zipper head 2100 is connected with the inner rail 1100. In this way, when the inner rail 1100 slides relative to the outer rail 1200, the zipper head 2100 can synchronously displace with the inner rail 1100, so that the two zipper racks 2210 passed through by the inner rail 1100 during the movement of the inner rail 1100 can be synchronously opened and closed. In the opened state, a gap can be formed between the two shielding strips 2200 to avoid interference with the inner rail 1100 inserted into the outer rail 1200. In the closed state, the zipper head 2100 can connect the two shielding strips 2200, so that the gap between the two shielding strips 2200 can be eliminated. At this time, the shielding unit 2000 can better shield the gap above the outer rail 1200, which can reduce the possibility of particles such as stones or sundries falling into the outer rail 1200, and is beneficial to ensuring the smoothness of the sliding of the inner rail 1100 relative to the outer rail 1200. The structure of the shielding strip 2200 and the mounting structure of the shielding strip 2200 and the outer rail 1200 are not limited here, and in actual application, a person skilled in the art can design according to specific needs as long as the use requirements are met.

[0042] In combination Figure 3 , the zipper head 2100 comprises two constraint plates, a connecting column 2130 and a hook portion 2140. For ease of description, the two constraint plates can be named as a first constraint plate 2110 and a second constraint plate 2120, and the connecting column 2130 can connect the first constraint plate 2110 and the second constraint plate 2120. The hook portion 2140 can be connected with the first constraint plate 2110.

[0043] After the zipper head 2100 and the shielding strip 2200 are connected, the two zipper racks 2210 can be located between the first constraint plate 2110 and the second constraint plate 2120 in the vertical direction, and the connecting column 2130 can be located between the two zipper racks 2210 in the transverse direction. As Figure 3 shown, when the zipper head 2100 displaces relative to the zipper racks 2210 in the P direction, the two zipper racks 2210 can be engaged with each other to be in the closed state; when the zipper head 2100 displaces relative to the zipper racks 2210 in the opposite direction of the P direction, the two zipper racks 2210 in the closed state can be switched to the opened state under the action of the connecting column 2130.

[0044] In the process of the movement cooperation between the slider head and the slider rack, the slider rack inevitably collides with the connecting column, the first constraint plate, the second constraint plate and the like, thereby causing collision noise, especially in a relatively closed use scenario such as a vehicle, the above noise is particularly obvious, which seriously affects the user experience.

[0045] To this end, the slide rail assembly provided by the embodiment of the present application can further include a support unit capable of supporting the slider rack, thereby being capable of constraining the slider rack in movement, so that the slider rack can collide with the slider head relatively less, thereby being capable of reducing the collision noise and improving the user experience.

[0046] Specifically, refer to Figures 4-7 , Figure 4 for a structural schematic diagram of a support unit; Figure 5 for Figure 4 a vertical projection view; Figure 6 for Figure 4 an exploded view; Figure 7 for Figure 4 a connection structure diagram of the support unit, the inner rail, the slider head and the slider rack in the embodiment of the present application.

[0047] As shown in Figure 4 , Figure 5 and Figure 7 , the slide rail device provided by the embodiment of the present application further includes a support unit 3000.

[0048] The support unit 3000 is installed on the inner rail 1100, and the support unit 3000 is connected with the slider head 2100, that is, the slider head 2100 can be indirectly connected with the inner rail 1100 through the support unit 3000. The support unit 3000 includes a first support part 3100 and a second support part 3200. The first support part 3100 is used to laterally support the slider rack 2210 in the pulled-apart state, so that the slider rack 2210 and the connecting column 2130 have a lateral gap; the second support part 3200 vertically supports the slider rack 2210 in the pulled-apart state, so that the slider rack 2210 and at least one of the two constraint plates have a vertical gap.

[0049] In this way, in the process of the displacement of the slider head 2100 relative to the slider rack 2210, the slider rack 2210 is less likely to collide with the connecting column 2130 laterally, and the slider rack 2210 is also less likely to collide with the constraint plate vertically, which can relatively reduce the collision between the slider rack 2210 and the slider head 2100, thereby being capable of reducing the collision noise and improving the quality of the slide rail device provided by the embodiment of the present application, so as to improve the user experience.

[0050] In some implementations, the support unit 3000 can include a first connecting portion 3300 and a second connecting portion 3400 arranged along the longitudinal direction. The first connecting portion 3300 is configured to be connected to the inner rail 1100, and the second connecting portion 3400 is configured to be connected to the zipper head 2100.

[0051] As shown in Figures 4-6 , the first connecting portion 3300 can include two first connecting plates 3310 arranged opposite to each other along the transverse direction. Each of the two first connecting plates 3310 can be provided with a first clamping member 3311, and the inner rail 1100 can be provided with a first clamping matching portion (not shown in the figure). The first clamping member 3311 and the first clamping matching portion can be connected to each other to achieve clamping fixation between the first connecting portion 3300 and the inner rail 1100. It can be seen that the clamping fixation connection scheme does not need to additionally provide a connecting member in the form of a screw, a rivet, etc., and the connection structure is relatively simple. Moreover, the clamping fixation connection scheme only needs to control the plugging of the first connecting portion 3300 and the inner rail 1100 in specific implementation, and the operation is relatively simple, which can simplify the installation process of the support unit 3000 and the inner rail 1100 in the embodiments of the present application. In addition, the clamping fixation connection scheme is also a detachable connection scheme, that is, the first connecting portion 3300 and the inner rail 1100 can also be separated, and the maintenance and replacement of the support unit 3000 can be conveniently achieved.

[0052] Further, at least one of the two first connecting plates 3310 can be provided with a guide surface 3312, which can be an arc surface, a plane, or some special-shaped surface, etc. At least a partial region of the guide surface 3312 can be arranged at an angle with the longitudinal direction. When the first connecting portion 3300 and the inner rail 1100 are docked, the guide surface 3312 can guide the inner rail 1100, which can improve the smoothness of the docking assembly of the first connecting portion 3300 and the inner rail 1100.

[0053] Here, the embodiments of the present application do not limit the specific structural form of the above-mentioned first clamping member 3311 and the first clamping matching portion. In actual application, a person skilled in the art can set them according to specific needs as long as they can meet the requirements of use. For example, in combination with Figure 4 and Figure 5 , the first clamping member 3311 can be a clamping plate formed by cutting the first connecting plate 3310, and the first clamping matching portion can be a clamping groove or a clamping hole, etc.

[0054] In some implementations, as shown in Figure 4 and Figure 7 , the second connecting portion 3400 can be provided with a connecting hole 3432A.

[0055] The hook portion 2140 of the slider head 2100 can be fixedly installed in the connecting hole 3432A to achieve the connection and fixation of the slider head 2100 and the second connecting portion 3400. In detail, the fixed connection manner of the hook portion 2140 can be interference assembly, adhesion, clamping, etc., which is not limited here as long as the reliability of the connection can be ensured.

[0056] It can be known that the above-mentioned connection of the slider head 2100 and the second connecting portion 3400 through insertion is achieved by means of the existing structure of the slider head 2100, i.e., the hook portion 2140. Therefore, the above-mentioned implementation manner does not need special design for the slider head 2100, and the slider head 2100 only needs to adopt a conventional industry standard part, i.e., can meet the installation and use requirements, so that the slide rail device provided by the embodiment of the application is more conducive to implementation and popularization and application. Moreover, the connection operation of the hook portion 2140 and the connecting hole 3432A is relatively simple, and the assembly efficiency can be improved.

[0057] In combination with Figure 6 The second connecting portion 3400 can include a metal base 3420 and a non-metal structure 3430. The metal base 3420 can be made of metal material, such as steel, aluminum alloy, etc., to ensure the structural strength of the first connecting portion 3300. The non-metal structure 3430 can be formed in at least part of the metal base 3420 by a plastic packaging process, etc., and the connecting hole 3432A can be located in the non-metal structure 3430. In this way, the connection of the hook portion 2140 and the connecting hole 3432A can be more easily achieved, especially when interference assembly is used to connect and fix the hook portion 2140 and the connecting hole 3432A. The connecting hole 3432A arranged in the non-metal structure 3430 is more likely to be deformed, and the interference assembly connection of the hook portion 2140 and the connecting hole 3432A can be more reliably achieved.

[0058] The first support portion 3100 and the second support portion 3200 can be formed in the non-metal structure 3430. In this way, the formation of the first support portion 3100 and the second support portion 3200 can be conveniently achieved. Moreover, in this implementation manner, the first support portion 3100 and the second support portion 3200 are both made of non-metal material, and the slider rack 2210 is less likely to produce abnormal sound during displacement relative to the two. This has a relatively positive significance for reducing the noise of the slide rail device provided by the embodiment of the application during use.

[0059] In the present embodiment, the first support portion 3100 is a first support column, which can extend in the vertical direction. The number of the first support columns is two, and the two first support columns are spaced apart in the horizontal direction. The second support portion 3200 is a second support column, which can extend in the horizontal direction. The number of the second support columns is also two, and the two second support columns are spaced apart in the horizontal direction.

[0060] For further reference, please refer to Figure 6 In one specific embodiment, the metal base 3420 can include a base top plate 3421, two base side plates 3422, and a base end plate 3423. The non-metal structure 3430 can include two outer wrapping side plates 3431 and an outer wrapping end plate 3432. The metal base 3420 and the first connecting portion 3300 can be arranged in the longitudinal direction. The base top plate 3421 is used to form a top protection, which can reduce the possibility of particles such as stones or some debris entering the connection between the zipper head 2100 and the zipper rack 2210, and the inside of the outer rail 1200 from the second connecting portion 3400. The two base side plates 3422 can be spaced apart in the horizontal direction, and the base end plate 3423 and the first connecting portion 3300 are spaced apart in the longitudinal direction. The base end plate 3423 can be provided with a relief hole 3423A. The two outer wrapping side plates 3431 can be formed on the two base side plates 3422, respectively. The outer wrapping end plate 3432 can be formed on the base end plate 3423, and part of the outer wrapping end plate 3432 can be filled in the relief hole 3423A to improve the bonding strength between the non-metal structure 3430 and the metal base 3420. In addition, the non-metal structure 3430 can form the aforementioned connecting hole 3423A. The first support portion 3100 can be connected to the outer wrapping side plate 3431.

[0061] In the present embodiment, the first connecting portion 3300 can also be made of metal, and the first connecting portion 3300 and the metal base 3420 can be an integral structure. Alternatively, the first connecting portion 3300 and the metal base 3420 can be manufactured separately and then connected by welding, bonding, screw connection, or other connection methods, which is also feasible. It can be understood that the first connecting portion 3300 can also be made of non-metal material, which is not specifically limited herein.

[0062] The metal base 3420 can be provided with an overflow hole 3422A, in combination with Figure 6 The overflow hole 3422A can be provided on the base side plate 3422, for example. Part of the non-metal structure 3430 can be located in the overflow hole 3422A to improve the bonding strength between the non-metal structure 3430 and the metal base 3420.

[0063] It should be understood that the above description of the specific structure of the first connecting portion 3300 is only an exemplary description made by the embodiments of the present application in combination with the drawings, and cannot be regarded as a limitation on the implementation scope of the slide rail device provided by the embodiments of the present application. In some other implementations of the embodiments of the present application, the first connecting portion 3300 can also adopt other structure forms as long as the use requirements can be met. For example, the metal base body 3420 can also not include the base body end plate 3423. For another example, the metal base body 3420 can also not exist, and at this time, the second connecting portion 3400 can also only include the non-metal structure 3430; when the first connecting portion 3300 is of metal material, the non-metal structure 3430 can be formed by insert injection molding with the first connecting portion 3300 as an insert; when the first connecting portion 3300 is also of non-metal material, the non-metal structure 3430 and the first connecting portion 3300 can also be an integral structure formed integrally.

[0064] In combination with Figure 7 In the present implementation, the second support portion 3200 can be arranged on the lower side of the zipper rack 2210. The second support portion 3200 can provide bottom support for the zipper rack 2210, so that the zipper rack 2210 and the second constraint plate 2120 can have a vertical gap therebetween, thereby being capable of reducing the possibility of collision between the zipper rack 2210 and the second constraint plate 2120 under the action of gravity and other forces.

[0065] In addition, in some other implementations of the embodiments of the present application, the second support portion 3200 can also be arranged on the upper side of the zipper rack 2210, so that the zipper rack 2210 and the first constraint plate 2110 can have a vertical gap therebetween; or, the second support portion 3200 can also be arranged on both the upper side and the lower side of the zipper rack 2210, so that the zipper rack 2210 and the first constraint plate 2110 and the second constraint plate 2120 all have a vertical gap therebetween.

[0066] Please refer to Figures 8-10 , Figure 8 is a structural schematic view of another support unit; Figure 9 is Figure 8 is a structural schematic view from another perspective; Figure 10 is Figure 8 is a connection structure view of the support unit, the inner rail and the zipper head in the present application.

[0067] Figures 8-9 The support unit 3000 involved in the present application and the aforementioned Figures 4-7 The basic structure arrangement and effect realization of the support unit 3000 involved in the present application are similar to those of the aforementioned support unit 3000, and the embodiments of the present application mainly describe the differences between the two.

[0068] In some implementations, asFigures 8-10 As shown, the second connecting portion 3400 can include two second connecting plates 3410 oppositely arranged along the lateral direction, and each of the two second connecting plates 3410 can be provided with a second clamping piece 3411, which can be a clamping hook or the like.

[0069] In the specific assembly, the hook portion 2140 can be inserted between the two second connecting plates 3410 along the vertical direction and connected with the second clamping piece 3411. It can be seen that the clamping fixed connection scheme does not need to additionally provide connecting pieces in the form of screws, rivets or the like, and the connection structure is relatively simple. Moreover, the clamping fixed connection scheme only needs to control the second connecting portion 3400 and the zipper head 2100 to be plugged in during specific implementation, and the operation is relatively simple, which can simplify the installation process of the support unit 3000 and the zipper head 2100 in the embodiment of the application. In addition, the clamping fixed connection scheme is also a detachable connection scheme, that is, the second connecting portion 3400 and the zipper head 2100 can also be separated, which can facilitate the maintenance and repair of the support unit 3000 or the zipper head 2100.

[0070] The above-mentioned connection scheme of the zipper head 2100 and the second connecting portion 3400 by clamping is achieved by means of the existing structure of the zipper head 2100, that is, the hook portion 2140. Therefore, the above-mentioned implementation mode does not need to be specially designed for the zipper head 2100, but only needs to adopt a traditional industry standard part, that is, it can meet the requirements of installation and use, so that the sliding rail device provided by the embodiment of the application is more conducive to implementation and popularization and application. Moreover, the connection operation of the hook portion 2140 and the second clamping piece 3411 is relatively simple, and the assembly efficiency can also be improved.

[0071] In the present implementation mode, the first support portion 3100 can be a support surface, which can be located between the first connecting portion 3300 and the second connecting portion 3400. The number of support surfaces can be two, and the two support surfaces can be arranged at intervals along the lateral direction. The second support portion 3200 can still be a second support column, and the number of second support columns is also two, and the two second support columns are arranged at intervals along the lateral direction.

[0072] In the present implementation mode, the support unit 3000 can be entirely made of a non-metal material, such as plastic or the like, so as to reduce the weight of the support unit 3000 and reduce the abnormal noise between the zipper rack 2210 and the first support portion 3100 and the second support portion 3200.

[0073] The embodiment of the present application also provides a seat assembly, which can be applied in a vehicle and comprises a seat body and a slide rail device. The slide rail device is the slide rail device in the above-mentioned implementation manners. The seat body can be connected with the inner rail 1100 of the slide rail device and can slide relative to the outer rail 1200 of the slide rail device, so as to adjust the setting position of the seat body in the vehicle.

[0074] The above is only the preferred embodiment of the present application. It should be pointed out that, for those skilled in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A slide rail device, characterized by, The utility model relates to a slide rail unit (1000) comprising an inner rail (1100) and an outer rail (1200), the inner rail (1100) is inserted in the outer rail (1200); a shielding unit (2000) comprising a zipper head (2100) and two shielding strips (2200) oppositely arranged, two adjacent ends of the two shielding strips (2200) are provided with zipper racks (2210), the zipper head (2100) and two zipper racks (2210) are connected; the zipper head (2100) comprises two constraint plates oppositely arranged and a connecting column (2130) connecting the two constraint plates; a support unit (3000) is installed on the inner rail (1100), and the support unit (3000) and the zipper head (2100) are connected, the support unit (3000) comprises a first support part (3100) and a second support part (3200); the first support part (3100) supports the zipper rack (2210) in a pulled-apart state horizontally, so that the zipper rack (2210) and the connecting column (2130) have a horizontal gap; the second support part (3200) supports the zipper rack (2210) in a pulled-apart state vertically, so that the zipper rack (2210) and at least one of the two constraint plates have a vertical gap. The support unit (3000) comprises a first connecting part (3300) and a second connecting part (3400) arranged longitudinally, the first connecting part (3300) is connected to the inner rail (1100), and the second connecting part (3400) is connected to the zipper head (2100). The first connecting part (3300) comprises two first connecting plates (3310) oppositely arranged, both the first connecting plates (3310) are provided with first clamping pieces (3311), and the first connecting part (3300) is connected to the inner rail (1100) through the first clamping pieces (3311). The zipper head (2100) further comprises a hook part (2140) connected to one of the constraint plates, and the second connecting part (3400) comprises two second connecting plates (3410) oppositely arranged, both the second connecting plates (3410) are provided with second clamping pieces (3411), and the second connecting part (3400) is connected to the hook part (2140) through the second clamping pieces (3411).

2. The slide rail device according to claim 1, wherein The zipper head (2100) further comprises a hook part (2140) connected to one of the constraint plates, and the second connecting part (3400) is provided with a connecting hole (3432A), and the hook part (2140) is fixedly installed in the connecting hole (3432A).

3. The slide rail device according to claim 2, wherein ​ 4. The slide rail device according to claim 2, wherein ​ 5. The slide rail device according to claim 2, wherein ​ 6. The slide rail device according to claim 5, wherein The second connecting part (3400) comprises a metal base (3420) and a non-metal structure (3430), the non-metal structure (3430) is arranged on at least part of the metal base (3420), the connecting hole (3432A) is located in the non-metal structure (3430), and the non-metal structure (3430) forms the first supporting part (3100) and the second supporting part (3200).

7. The slide rail device according to claim 6, wherein The metal base (3420) is provided with an overflow hole (3422A), and part of the non-metal structure (3430) is located in the overflow hole (3422A).

8. The slide rail device according to any one of claims 1-7, wherein The first supporting part (3100) is a first supporting column, the number of the first supporting column is two, and the two first supporting columns are arranged in a transverse direction; or the first supporting part (3100) is a supporting surface, the number of the supporting surface is two, and the two supporting surfaces are arranged in a transverse direction. And / or, The second supporting part (3200) is a second supporting column, the number of the second supporting column is two, and the two second supporting columns are arranged in a transverse direction.

9. The slide rail device according to any one of claims 1-7, wherein The first supporting part (3100) and the second supporting part (3200) are both non-metal materials.

10. A seating assembly characterized by, The seat body and the inner rail (1100) are connected. The seat body and the inner rail (1100) are connected.

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