Slide rail assembly and vehicle

Abstract

The utility model discloses a slide rail assembly and a vehicle, the extension direction of the slide rail assembly is a first direction, the slide rail assembly comprises an upper rail part, a lower rail part and a rolling supporting part, the upper rail part comprises an upper rail top plate, two upper rail side plates and two upper rail outer flanges, and the lower rail part comprises a lower rail bottom plate and two lower rail side parts; the two upper rail outer flanges are respectively inserted into the two lower rail side parts; the rolling supporting component is arranged between the upper rail outer flange and the lower rail side portion and comprises a supporting base body, at least two balls spaced in the first direction are arranged at the upper end of the supporting base body in a rolling mode, and at least two pin rollers spaced in the first direction are arranged at the lower end of the supporting base body in a rolling mode. The balls and the pin rollers abut against the upper rail outer turnups and the lower rail side portions, the lower rail side portions and the upper rail outer turnups are tangent to the outer wall faces of the pin rollers through planes, the lower rail side portions are tangent to the outer wall faces of the balls through planes, and the upper rail outer turnups are tangent to the outer wall faces of the balls through arc faces. The sliding rail assembly has good supporting performance.

Description

A slide rail assembly and a vehicle Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a slide rail assembly and a vehicle. The slide rail assembly can be applied to electric slide rail scenarios or manual slide rail scenarios. Background Technology

[0002] The slide rail assembly includes an upper rail component and a lower rail component. The upper rail component connects to the seat body, while the lower rail component connects to the vehicle floor to mount the seat body onto the vehicle floor. Simultaneously, the upper rail component can slide relative to the lower rail component, allowing adjustment of the seat body's installation position within the vehicle. With technological advancements and societal progress, seat bodies are incorporating increasingly more functions, resulting in greater weight. This necessitates slide rail assemblies with superior support performance.

[0003] Therefore, how to provide a solution to overcome or alleviate the above-mentioned defects remains a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a slide rail assembly and a vehicle, wherein the slide rail assembly can have relatively better support performance.

[0005] To solve the above-mentioned technical problems, this utility model provides a slide rail assembly. The slide rail assembly extends in a first direction and includes an upper rail component, a lower rail component, and a rolling support component. The upper rail component includes an upper rail top plate, two upper rail side plates, and two upper rail outward flanges. The lower rail component includes a lower rail bottom plate and two lower rail side portions. The two upper rail outward flanges are respectively inserted into the two lower rail side portions. The rolling support component is disposed between the upper rail outward flanges and the lower rail side portions, and the rolling support component includes a support... The support base has at least two balls spaced apart along the first direction rolled at its upper end, and at least two rollers spaced apart along the first direction rolled at its lower end. The balls and rollers abut against the outer flange of the upper rail and the side of the lower rail. The side of the lower rail and the outer flange of the upper rail are tangent to the outer wall of the rollers through a plane. The side of the lower rail is tangent to the outer wall of the balls through a plane. The outer flange of the upper rail is tangent to the outer wall of the balls through an arc surface.

[0006] In the above-described scheme, the slide rail assembly is equipped with a rolling support component, which includes balls, rollers, and a support base. The rollers have a cylindrical structure and are located at the lower end of the support base. The lower rail side and the upper rail outer flange are tangent to the outer wall of the roller through a plane, allowing for line contact between the rollers and the lower rail side, as well as the upper rail outer flange. This facilitates reliable support for the upper rail component, thereby improving the support performance of the slide rail assembly. The lower rail side is tangent to the outer wall of the ball through a plane to improve the smoothness of ball rolling, while the upper rail outer flange is tangent to the outer wall of the ball through a curved surface for better ball installation and positioning, improving ball installation reliability and better utilizing the ball's backlash elimination function.

[0007] Optionally, in the same rolling support component, the balls and the rollers are staggered along the first direction.

[0008] Optionally, in the same rolling support component, the distance between two adjacent balls along the first direction is less than the distance between two adjacent rollers along the first direction.

[0009] Optionally, the number of rolling support components between the upper rail outer flange and the lower rail side on the same side is at least two, and each rolling support component is spaced apart along the first direction.

[0010] Optionally, the upper rail outer flange includes a flange body and two flange stops, the two flange stops being located on both sides of the flange body along the first direction; the rolling support component is located between the two flange stops, and both flange stops can stop the rolling support component along the first direction.

[0011] Optionally, the lower rail side includes a lower rail side plate, a lower rail top plate, and a lower rail inner flange. The lower rail top plate and the lower rail side plate are arranged at an angle, and the lower rail inner flange and the lower rail top plate are arranged at an angle. The extension direction of the end of the flange body can point to the lower rail top plate, or the extension direction of the end of the flange body can point to the connection between the lower rail top plate and the lower rail inner flange.

[0012] Optionally, both the flanged body and the lower rail side plate are bent plate structures.

[0013] Optionally, the lower rail side plate includes a first lower rail plate body, a second lower rail plate body, and a third lower rail plate body connected to each other. The first lower rail plate body is connected to the lower rail bottom plate, and the third lower rail plate body is connected to the lower rail top plate.

[0014] Optionally, the flanged body includes a first upper rail plate, a second upper rail plate, and a third upper rail plate connected in sequence, wherein the first upper rail plate is connected to the upper rail side plate.

[0015] This utility model also provides a vehicle, including a vehicle body, a seat body, and a slide rail assembly. The slide rail assembly is the slide rail assembly described above. The upper rail component is connected to the seat body, and the lower rail component is connected to the vehicle body.

[0016] Since the aforementioned slide rail assembly already possesses the above-mentioned technical effects, vehicles equipped with this slide rail assembly should also possess similar technical effects, so they will not be described in detail here. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the slide rail assembly;

[0018] Figure 2 is a structural schematic diagram of one implementation of the slide rail assembly provided by this utility model;

[0019] Figure 3 shows the split structure diagram of the slide rail assembly;

[0020] Figure 4 is a partial structural diagram of Figure 3;

[0021] Figure 5 is a front view of Figure 3;

[0022] Figure 6 is a schematic diagram of the rolling support component in Figure 5;

[0023] Figure 7 shows the connection structure between the upper rail component and the lower rail component at the flanged body.

[0024] Figure 8 is a simplified diagram of the force analysis of the slide rail assembly in Figure 7 when it peels off under stress;

[0025] Figure 9 is a simplified force analysis diagram of a slide rail assembly in the prior art when it peels off under force.

[0026] Figure 10 is a simulation experiment diagram of the anti-diagonal tensile strength of the slide rail assembly provided by this utility model;

[0027] Figure 11 shows the variation curve of the anti-diagonal tensile strength during the simulation experiment shown in Figure 10.

[0028] Figure label:

[0029] 1000 - Slide rail assembly; 1100 - Upper rail component; 1110 - Upper rail top plate; 1120 - Upper rail side plate; 1130 - Upper rail outer flange; 1131 - Flanged body; 1131A - First upper rail plate; 1131B - Second upper rail plate; 1131C - Third upper rail plate; 1132 - Flanged stop; 1140 - Connecting column; 1200 - Lower rail component; 1210 - Lower rail base plate; 1220 - Lower rail side; 1221 - Lower rail side plate; 1221A - First lower rail plate; 1221B - Second lower rail plate; 1221C - Third lower rail plate; 1222 - Lower rail top plate; 1223 - Lower rail inner flange; 1300 - Rolling support component; 1310 - Ball bearing; 1320 - Roller; 1330 - Support base;

[0030] 2000 - Drive assembly; 2100 - Drive bracket; 2200 - Drive motor; 2300 - Gearbox. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] In the description of the embodiments of this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," and "third" may explicitly or implicitly include one or more of that feature.

[0033] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, "linking" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0034] The directional terms mentioned in the embodiments of this utility model, such as "inner" and "outer", are only for reference to the direction of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, 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 the embodiments of this utility model.

[0035] In the description of embodiments of this utility model, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0036] Please refer to Figure 1, which is a schematic diagram of the slide rail assembly.

[0037] As shown in Figure 1, this embodiment of the present invention provides a slide rail assembly, including a slide rail assembly 1000. The slide rail assembly 1000 includes an upper rail component 1100 and a lower rail component 1200. The upper rail component 1100 can be inserted into the lower rail component 1200 and can slide along the lower rail component 1200.

[0038] In this embodiment of the invention, a first direction X, a second direction Y, and a third direction Z can be defined. The first direction X can specifically be the extension direction of the slide rail assembly 1000; in some implementations, the first direction X is also referred to as the length direction of the slide rail assembly 1000. In the mounting surface of the slide rail assembly 1000, the direction forming an angle with the first direction X is the second direction Y, such as 90 degrees; in some implementations, the second direction Y is also referred to as the width direction of the slide rail assembly 1000. The direction perpendicular to the mounting surface of the slide rail assembly 1000 is the third direction Z; in some implementations, the third direction Z is also referred to as the vertical direction, or the height direction of the slide rail assembly 1000, etc.

[0039] In practical applications, the slide rail assemblies 1000 are usually present in pairs, that is, the slide rail assembly may include two slide rail assemblies 1000, and the two slide rail assemblies 1000 can be arranged at intervals along the second direction Y, as shown in Figure 1. It should be noted that the embodiments of this utility model do not exclude the use of the slide rail assemblies 1000 individually, or the use of three, four, or even more together.

[0040] Taking a slide rail assembly comprising two slide rail components 1000 as an example, referring to Figure 1, when the slide rail assembly is an electric slide rail assembly, it may further include a drive component 2000. The drive component 2000 may specifically include a drive bracket 2100, a drive motor 2200, and a gearbox 2300. The drive motor 2200 can be mounted on the drive bracket 2100 and connected to the gearbox 2300 via a flexible shaft or the like. The gearbox 2300 can be at least partially inserted into the upper rail component 1100 and can be connected to a lead screw component mounted on the lower rail component 1200, so that under the drive of the drive motor 2200, the upper rail component 1100 is driven to move relative to the lower rail component 1200 along a first direction X.

[0041] In addition, the slide rail assembly described above can also be a manual slide rail assembly. In this case, the drive component 2000 shown in Figure 1 can be omitted and replaced with a manual unlocking lever to achieve movement unlocking between the upper rail component 1100 and the lower rail component 1200.

[0042] In other words, the slide rail assembly 1000 provided in this embodiment of the present invention can be applied to both electric slide rail assemblies and manual slide rail assemblies.

[0043] As described in the background section, with the increasing number of functions configured in the seat body, the weight of the seat body is correspondingly increasing, which requires the slide rail assembly to have better support performance. To address this, this embodiment of the invention improves the support performance of the slide rail assembly by adjusting its structural form, thus adapting to support a heavier seat body.

[0044] Please refer to Figures 2-6. Figure 2 is a structural schematic diagram of one implementation of the slide rail assembly provided by this utility model; Figure 3 is a split structural diagram of the slide rail assembly; Figure 4 is a partial structural diagram of Figure 3; Figure 5 is a front view of Figure 3; and Figure 6 is a partial structural diagram of Figure 5.

[0045] As shown in Figures 2-4, the upper rail component 1100 includes an upper rail top plate 1110, two upper rail side plates 1120, and two upper rail outward flanges 1130. The lower rail component 1200 includes a lower rail bottom plate 1210 and two lower rail side portions 1220. The two upper rail outward flanges 1130 can be inserted into the two lower rail side portions 1220 along the first direction X.

[0046] In this embodiment of the utility model, the slide rail assembly 1000 further includes a rolling support component 1300, which is disposed between the upper rail outer flange 1130 and the lower rail side 1220, and is used to guide and support the relative sliding of the upper rail component 1100 and the lower rail component 1200.

[0047] The rolling support component 1300 includes a support base 1330. At least two balls 1310 spaced apart along a first direction are rolledly disposed at the upper end of the support base 1330, and at least two rollers 1320 spaced apart along the first direction are rolledly disposed at the lower end of the support base 1330. The support base 1330 can be integrated to assemble the balls 1310 and rollers 1320, facilitating the installation of the rolling support component 1300 between the upper rail component 1100 and the lower rail component 1200.

[0048] It can be seen that both the upper and lower ends of the rolling support component 1300 can be provided with mounting holes. The balls 1310 and rollers 1320 can be disposed in the mounting holes. The opening of the mounting hole can be appropriately smaller than the balls 1310 and rollers 1320, so that the balls 1310 and rollers 1320 need a certain pressure to be pressed into the mounting hole, but are also restricted by the opening to prevent them from falling out of the support base 1330. Simultaneously, the balls 1310 and rollers 1320 can roll freely relative to the support base 1330 within the mounting hole.

[0049] Both the ball bearing 1310 and the roller bearing 1320 abut against the outer flange of the upper rail 1130 and the side portion of the lower rail 1220. That is, the ball bearing 1310 and the roller bearing 1320 are assembled with the outer flange of the upper rail 1130 and the side portion of the lower rail 1220 using an interference fit, ensuring relatively tight contact between them. Specifically, the side portion of the lower rail 1220 and the outer flange of the upper rail 1130 are tangent to the outer wall surface of the roller bearing 1320 through a flat surface, the side portion of the lower rail 1220 is tangent to the outer wall surface of the ball bearing 1310 through a flat surface, and the outer flange of the upper rail 1130 is tangent to the outer wall surface of the ball bearing 1310 through a curved surface.

[0050] In the above-described scheme, the slide rail assembly 1000 is equipped with a rolling support component 1300, which includes a ball bearing 1310, a roller bearing 1320, and a support base 1330. The roller bearing 1320 has a cylindrical structure and is located at the lower end of the support base 1330. The lower rail side 1220 and the upper rail outer flange 1130 are both tangent to the outer wall surface of the roller bearing 1320 through a plane, so that the roller bearing 1320, the lower rail side 1220, and the upper rail outer flange 1130 can all make support contact through line contact, which is beneficial for providing reliable support for the upper rail component 1100, thereby improving the support performance of the slide rail assembly 1000. The lower rail side 1220 can be tangent to the outer wall of the ball 1310 through a flat surface to improve the smoothness of the ball 1310 rolling, while the upper rail outer flange 1130 can be tangent to the outer wall of the ball 1310 through an arc surface to better limit the installation of the ball 1310, thereby improving the installation reliability of the ball 1310 and better utilizing the backlash elimination function of the ball 1310 in the second direction Y and the third direction Z.

[0051] It can be seen that among the ball bearing 1310 and the roller bearing 1320, the ball bearing 1310 mainly plays the role of eliminating gaps and simultaneously achieving the support function, while the roller bearing 1320 mainly plays the support function to ensure the uniqueness of the relative posture of the upper rail component 1100 and the lower rail component 1200.

[0052] The number of balls 1310 and rollers 1320 in the same rolling support component 1300 is not limited here, and can be adjusted as needed. For example, referring to Figures 3 and 4, the same rolling support component 1300 can be configured with 3 balls 1310 and 3 rollers 1320.

[0053] In some alternative implementations, as shown in Figures 3 and 4, the upper rail outer flange 1130 may include a flange body 1311 and two flange stops 1132.

[0054] The two flange stops 1132 can be located on both sides of the flange body 1311 along the first direction X. The rolling support member 1300 can be located between the two flange stops 1132. Both flange stops 1132 can stop the rolling support member 1300 along the first direction X to reduce the possibility of the rolling support member 1300 slipping off the upper rail member 1100.

[0055] In some alternative implementations, as shown in Figures 5 and 6, in the same rolling support component 1300, the ball 1310 and the roller 1320 can be staggered along the first direction X. That is, a section perpendicular to the first direction X and passing through the center of the ball 1310 and a section perpendicular to the first direction X and passing through the central axis of the roller 1320 are staggered along the first direction X, and these two sections have a distance D along the first direction X.

[0056] In this way, without increasing the number of balls 1310 and rollers 1320, the rolling support component 1300 can provide a greater number of support points spaced along the first direction X, thus better fulfilling its supporting role within the slide rail assembly 1000 and improving the support performance of the slide rail assembly 1000. Simultaneously, setting the balls 1310 and rollers 1320 to be staggered along the first direction X can also reduce the interference fit between the rolling support component 1300 and the upper rail component 1100 and the lower rail component 1200 during assembly, making the assembly process relatively easier.

[0057] It should be understood that in some other implementations of this utility model, the ball 1310 and roller 1320 may not be offset along the first direction X, which is also feasible.

[0058] In some optional implementations, as shown in Figures 5 and 6, in the same rolling support component 1300, the distance L1 between two adjacent balls 1310 along the first direction X can be smaller than the distance L2 between two adjacent rollers 1320 along the first direction X. This effectively increases the support length of the rolling support component 1300, allowing it to better fulfill its supporting function and thus improving the support performance of the slide rail assembly 1000.

[0059] It should be understood that in some other implementations of this utility model, there may be other relationships between the distance L1 between two adjacent balls 1310 along the first direction X and the distance L2 between two adjacent rollers 1320 along the first direction X, which are not limited here.

[0060] Here, the number of rolling support members 1300 located on the same side along the second direction Y between the upper rail outer flange 1130 and the lower rail side portion 1220 is not limited. In the implementations of Figures 3 and 5, the number of rolling support members 1300 is two. In some other implementations of the present invention, the number of rolling support members 1300 may also be three, four, or more, and the rolling support members 1300 may be spaced apart along the first direction X.

[0061] One crucial function of sliding rail assemblies is protecting the safety of vehicle occupants. A key parameter is their tensile strength. Tensile strength specifically refers to the strength of the sliding rail assembly before failure under impact loading, and it's a critical indicator for evaluating the performance of the sliding rail assembly in a vehicle collision. In existing technologies, the tensile strength of sliding rail assemblies is generally only around 20 kN, which is often insufficient for use in middle or rear row seats.

[0062] To address this, a common solution in existing technologies is to add a clamping structure to improve the strength of the slide rail assembly. However, adding a clamping structure results in a relatively large number of components in the slide rail assembly, a more complex structure, and a relatively higher weight, which is not conducive to the current market requirements for lightweight vehicles.

[0063] Based on the aforementioned technological status, the applicant, through extensive research, has adjusted the structural form of at least the upper rail component 1100 in the slide rail assembly. This adjustment significantly increases the anti-diagonal tensile strength of the slide rail assembly 1000 without adding any additional components, thereby improving its safety performance. Furthermore, it effectively avoids increasing the structural complexity of the slide rail assembly 1000, reducing its weight and facilitating lightweight vehicle design.

[0064] Specifically, please refer to Figures 7-11. Figure 7 is a structural diagram showing the connection between the upper rail component and the lower rail component at the flanged body; Figure 8 is a simplified diagram of the force analysis of the slide rail assembly in Figure 7 when it peels off under stress; Figure 9 is a simplified diagram of the force analysis of a slide rail assembly in the prior art when it peels off under stress; Figure 10 is a simulation experiment diagram of the anti-diagonal tensile strength of the slide rail assembly provided by this utility model; Figure 11 is a curve showing the change of anti-diagonal tensile strength during the simulation experiment in Figure 10.

[0065] As shown in Figure 7, in this embodiment of the present invention, the lower rail side portion 1220 may include a lower rail side plate 1221, a lower rail top plate 1222, and a lower rail inner flange 1223. The lower rail top plate 1222 and the lower rail side plate 1221 are arranged at an angle, meaning there may be a bend between the lower rail top plate 1222 and the lower rail side plate 1221. The lower rail inner flange 1223 and the lower rail top plate 1222 are also arranged at an angle, meaning there may also be a bend between the lower rail inner flange 1223 and the lower rail top plate 1222.

[0066] In the upper rail outer flange 1130, the extension direction of the end of the flange body 1131 (the direction of the hollow arrow in Figure 7) can point to the lower rail top plate 1222, or the extension direction of the end of the flange body 1131 can point to the connection between the lower rail top plate 1222 and the lower rail inner flange 1223. It should be understood that the end of the flange body 1131 specifically refers to the end of the flange body 1131 away from its connection with the upper rail side plate 1120; this end can be a flat plate structure, in which case the extension direction of the end is also the extension direction of the flat plate structure, or the end can also be a curved panel structure, in which case the extension direction of the end is also the tangential direction of the curved panel structure.

[0067] Referring to Figure 8, for the slide rail assembly 1000 provided in this embodiment of the present invention, when a vehicle collision causes the upper rail component 1100 and the lower rail component 1200 to separate, the end of the flange body 1131 can directly act on the lower rail top plate 1222, or the connection between the lower rail top plate 1222 and the lower rail inner flange 1223. At this time, if the upper rail component 1100 and the lower rail component 1200 are to separate, the upper rail component 1100 needs to drive the lower rail top plate 1222 to flip relative to the lower rail side plate 1221, and also needs to drive the lower rail inner flange 1223 to flip relative to the lower rail top plate 1222, that is, it needs to overcome two bends in the lower rail component 1200. The flange body 1131 as a whole is subjected to a first deformation force F1 downward along the third direction Z of the lower rail component 1200, and the moment of the first deformation force F1 is L1.

[0068] Referring to Figure 9, the existing slide rail assembly will be analyzed together. As shown in Figure 9, in the existing slide rail assembly, the extension direction of the end of the upper rail outer flange 1130′ points to the lower rail inner flange 1223′. When a vehicle collision occurs, causing the upper rail component 1100′ and the lower rail component 1200′ to separate, the end of the upper rail outer flange 1130′ can directly act on the lower rail inner flange 1223′. At this time, if the upper rail component 1100′ and the lower rail component 1200′ are to separate, the upper rail component 1100′ needs to drive the lower rail inner flange 1223′ to flip relative to the lower rail top plate 1222′, that is, it needs to overcome a bend in the lower rail component 1200′. The upper rail outer flange 1130′ is then subjected to a second deformation force F2 along the Y direction of the lower rail component 1200′. The moment of the second deformation force F2 is L2, which is significantly greater than L1.

[0069] Comparative analysis shows that, by adjusting the structural shape of the upper rail component 1100 in this embodiment of the invention, the separation of the upper rail component 1100 and the lower rail component 1200 during a collision requires overcoming a greater number of bends in the lower rail component 1200, making deformation of the lower rail component 1200 relatively more difficult. Furthermore, the moment L1 of the first deformation force F1 experienced by the flanged body 1131 is relatively small, further increasing the difficulty of deformation of the upper rail outer flange 1130. Thus, the overall difficulty of separation between the upper rail component 1100 and the lower rail component 1200 in this embodiment of the invention is higher, thereby improving the anti-diagonal tensile strength of the slide rail assembly 1000.

[0070] In some alternative implementations, as shown in Figure 7, both the flanged body 1131 and the lower rail side plate 1221 can be bent plate structures to further enhance the structural strength of the upper rail component 1100 and the lower rail component 1200.

[0071] The lower rail side plate 1221 may include a first lower rail plate 1221A, a second lower rail plate 1221B, and a third lower rail plate 1221C connected to each other. The first lower rail plate 1221A is connected to the lower rail base plate 1210. The second lower rail plate 1221B and the first lower rail plate 1221A may be arranged at an angle, that is, there may be a bend between the second lower rail plate 1221B and the first lower rail plate 1221A. The third lower rail plate 1221C and the second lower rail plate 1221B may be arranged at an angle, that is, there may be a bend between the third lower rail plate 1221C and the second lower rail plate 1221B. The third lower rail plate 1221C may be connected to the lower rail top plate 1222.

[0072] The first lower rail plate 1221A can be a flat plate structure and can be set at an angle to the second direction Y to provide oblique support for the roller 1320. The second lower rail plate 1221B can be a flat plate structure or a curved plate structure. The third lower rail plate 1221C can be a flat plate structure so that it is tangent to the outer wall surface of the ball 1310 through a plane.

[0073] The flanged body 1131 may include a first upper rail plate 1131A, a second upper rail plate 1131B, and a third upper rail plate 1131C. The first upper rail plate 1131A is connected to the upper rail side plate 1120, and the second upper rail plate 1131B connects the first upper rail plate 1131A and the third upper rail plate 1131C. The first upper rail plate 1131A, the second upper rail plate 1131B, and the third upper rail plate 1131C may also be arranged at an angle between each other, that is, there may be a bend between each pair.

[0074] The first upper rail plate 1131A can be a flat plate structure and can be set at an angle to the second direction Y to provide oblique support for the roller 1320. The second upper rail plate 1131B can be a flat plate structure or a curved plate structure. The third upper rail plate 1131C can be a curved plate structure so that it is tangent to the outer wall surface of the ball 1310 through the arc surface.

[0075] It should be understood that the above description of the specific structural forms of the upper rail outer flange 1130 and the lower rail side plate 1221 is merely an exemplary illustration of the present utility model embodiment in conjunction with FIG. 7, and should not be construed as limiting the scope of implementation of the slide rail assembly 1000 provided by the present utility model embodiment. Under the condition of satisfying the function, the upper rail outer flange 1130 and the lower rail side plate 1221 may also adopt other structural forms. For example, at least one of the upper rail outer flange 1130 and the lower rail side plate 1221 may consist of only two plates, or at least one of the upper rail outer flange 1130 and the lower rail side plate 1221 may consist of at least four plates.

[0076] Regarding the slide rail assembly 1000 provided in this embodiment of the present invention, the applicant also conducted a simulation test on its anti-diagonal tensile strength. Referring to Figures 10 and 11, the slide rail assembly 1000 in this embodiment of the present invention can achieve an anti-diagonal tensile strength of 50KN, far exceeding the 20KN of the prior art. When used inside a vehicle, it can better protect the occupants and improve safety performance.

[0077] In some alternative implementations, the top surface of the upper rail top plate 1110 can be flat. This allows for a simpler structure of the upper rail top plate 1110, simplifying the structure of the upper rail component 1100 and reducing costs. It also makes it easier for the upper rail top plate 1110 to be connected to the seat body through different installation methods.

[0078] For example, as shown in Figure 1 above, a connecting post 1140 can be provided on the top surface of the upper rail top plate 1110. Specifically, the connecting post 1140 can be a rivet post, etc.

[0079] This utility model embodiment also provides a vehicle, including a vehicle body, a seat body, and a slide rail assembly 1000. The slide rail assembly 1000 can be any of the slide rail assemblies 1000 involved in the foregoing implementations. In the slide rail assembly 1000, the upper rail component 1100 is connected to the seat body, and the lower rail component 1200 is connected to the vehicle body.

[0080] Since the aforementioned slide rail assembly 1000 already possesses the above-mentioned technical effects, vehicles equipped with the slide rail assembly 1000 should also possess similar technical effects, so they will not be described in detail here.

[0081] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A slide rail assembly, characterized in that, The slide rail assembly (1000) extends in a first direction. The slide rail assembly (1000) includes an upper rail component (1100), a lower rail component (1200), and a rolling support component (1300). The upper rail component (1100) includes an upper rail top plate (1110), two upper rail side plates (1120), and two upper rail outward flanges (1130). The lower rail component (1200) includes a lower rail bottom plate (1210) and two lower rail side portions (1220). The two upper rail outward flanges (1130) are respectively inserted into the two lower rail side portions (1220). The rolling support component (1300) is disposed between the upper rail outward flanges (1130) and the lower rail side portions (1220). The rolling support component (1300) includes a support base (13... 30), the upper end of the support base (1330) is provided with at least two balls (1310) spaced apart along the first direction, and the lower end of the support base (1330) is provided with at least two rollers (1320) spaced apart along the first direction. The balls (1310) and the rollers (1320) abut against the upper rail outer flange (1130) and the lower rail side (1220). The lower rail side (1220) and the upper rail outer flange (1130) are tangent to the outer wall surface of the roller (1320) through a plane. The lower rail side (1220) is tangent to the outer wall surface of the ball (1310) through a plane. The upper rail outer flange (1130) is tangent to the outer wall surface of the ball (1310) through an arc surface.

2. The slide rail assembly according to claim 1, characterized in that, In the same rolling support component (1300), the ball (1310) and the roller (1320) are offset along the first direction.

3. The slide rail assembly according to claim 1, characterized in that, In the same rolling support component (1300), the distance between two adjacent balls (1310) along the first direction is less than the distance between two adjacent rollers (1320) along the first direction.

4. The slide rail assembly according to claim 1, characterized in that, The number of rolling support members (1300) between the upper rail outer flange (1130) and the lower rail side (1220) on the same side is at least two, and each of the rolling support members (1300) is spaced apart along the first direction.

5. The slide rail assembly according to any one of claims 1-4, characterized in that, The upper rail outer flange (1130) includes a flange body (1131) and two flange stops (1132), the two flange stops (1132) are respectively located on both sides of the flange body (1131) along the first direction; the rolling support member (1300) is located between the two flange stops (1132), and both flange stops (1132) can stop the rolling support member (1300) along the first direction.

6. The slide rail assembly according to claim 5, characterized in that, The lower rail side (1220) includes a lower rail side plate (1221), a lower rail top plate (1222), and a lower rail inner flange (1223). The lower rail top plate (1222) and the lower rail side plate (1221) are arranged at an angle, and the lower rail inner flange (1223) and the lower rail top plate (1222) are arranged at an angle. The extension direction of the end of the flange body (1131) can point to the lower rail top plate (1222), or the extension direction of the end of the flange body (1131) can point to the connection between the lower rail top plate (1222) and the lower rail inner flange (1223).

7. The slide rail assembly according to claim 6, characterized in that, Both the flanged body (1131) and the lower rail side plate (1221) are bent plate structures.

8. The slide rail assembly according to claim 7, characterized in that, The lower rail side plate (1221) includes a first lower rail plate body (1221A), a second lower rail plate body (1221B), and a third lower rail plate body (1221C) connected to each other. The first lower rail plate body (1221A) is connected to the lower rail bottom plate (1210), and the third lower rail plate body (1221C) is connected to the lower rail top plate (1222).

9. The slide rail assembly according to claim 7, characterized in that, The flanged body (1131) includes a first upper rail plate (1131A), a second upper rail plate (1131B) and a third upper rail plate (1131C) connected in sequence. The first upper rail plate (1131A) is connected to the upper rail side plate (1120).

10. A vehicle, characterized in that, The vehicle includes a vehicle body, a seat body, and a slide rail assembly (1000), wherein the slide rail assembly (1000) is the slide rail assembly described in any one of claims 1-9, the upper rail component (1100) is connected to the seat body, and the lower rail component (1200) is connected to the vehicle body.

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