Waist rest assembly and seat

Abstract

The embodiment of the utility model provides a waist rest assembly and a seat, and relates to the technical field of seats. The waist rest assembly comprises a waist rest structure; the waist rest structure comprises a waist rest fixing seat, a waist rest rotating shaft and a waist rest main body; one of the waist rest fixing seat and the waist rest main body is rotatably connected with the waist rest rotating shaft, and the other one of the waist rest fixing seat and the waist rest main body is provided with a sliding space for the waist rest rotating shaft to penetrate through and is in sliding fit with the waist rest rotating shaft through the sliding space. According to the waist rest assembly, the direction and angle of the waist rest body can be adjusted at the same time according to the requirements of a user, and therefore the use comfort of the user is improved.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and more specifically, to a lumbar support component and a seat. Background Technology

[0002] A lumbar support is a type of chair accessory, also known as a backrest, cushion, or lumbar support. Its main function is to provide lumbar support to relieve fatigue and protect lumbar health.

[0003] In existing technical solutions, lumbar supports are typically fixed to the seat body using screws or bolts. However, this fixed installation method limits the adjustability of the lumbar support position, preventing users from adjusting its position according to individual needs and thus reducing comfort. Utility Model Content

[0004] The purpose of this utility model is to provide a lumbar support component and a seat, which can adjust the direction and angle of the lumbar support body according to the user's needs, thereby improving the user's comfort.

[0005] The embodiments of this utility model are implemented as follows:

[0006] In a first aspect, this utility model provides a lumbar support assembly, including a lumbar support structure, wherein the lumbar support structure includes a lumbar support fixing seat, a lumbar support rotating shaft, and a lumbar support body;

[0007] One of the lumbar support fixing seat and the lumbar support body is rotatably connected to the lumbar support pivot. The other of the lumbar support fixing seat and the lumbar support body has a sliding space for the lumbar support pivot to pass through, and slides with the lumbar support pivot through the sliding space.

[0008] In an optional embodiment, the lumbar support assembly further includes a seat fixing rod and a locking member, wherein the seat fixing rod has a first sliding groove and is used to be mounted on the seat body;

[0009] The locking member is disposed on the lumbar support fixing seat and is used to lock and fix the lumbar support fixing seat to the seat fixing rod.

[0010] In an optional embodiment, the lumbar support body includes a lumbar back panel and a lumbar cover panel, the lumbar back panel is connected to the lumbar cover panel, and there is a sliding space between the lumbar back panel and the lumbar cover panel;

[0011] The lumbar support pivot is parallel to the extension direction of the first sliding groove, and perpendicular to the extension direction of the sliding space. The lumbar support pivot passes through the sliding space and simultaneously slides with the lumbar back panel and the lumbar cover.

[0012] In an optional embodiment, the lumbar support pivot is provided with a mounting groove, and the lumbar support structure further includes an elastic element and a snap-fit ​​element. The elastic element is disposed in the mounting groove, and a portion of the snap-fit ​​element is disposed in the mounting groove and abuts against the elastic element. The lumbar support back panel or the lumbar support cover is provided with a plurality of snap-fit ​​slots on the side facing the lumbar support pivot, and another portion of the snap-fit ​​element is used to engage with at least one of the plurality of snap-fit ​​slots.

[0013] In an optional embodiment, a second sliding groove is provided on the side of the lumbar support cover plate near the sliding space, and one side of the lumbar support pivot is slidably disposed in the second sliding groove.

[0014] In an optional embodiment, the lumbar support pivot includes a first limiting part, a second sliding part, and a second limiting part connected in sequence. The first limiting part and the second limiting part are rotatably connected to the lumbar support fixing seat. The second sliding part passes through the sliding space and simultaneously slides with the lumbar support back panel and the lumbar support cover plate. The lumbar support back panel and the lumbar support cover plate are both located between the first limiting part and the second limiting part.

[0015] In an optional embodiment, the lumbar support fixing seat includes a first sliding part, a first fixing part, and a second fixing part. The first sliding part is slidably disposed in the first sliding groove, and the locking member is disposed in the first sliding part and is used to lock and fix the first sliding part to the seat fixing rod.

[0016] The first fixing part and the second fixing part are spaced apart from the first sliding part, and the two ends of the waist rest pivot are rotatably connected to the first fixing part and the second fixing part, respectively.

[0017] In an optional embodiment, the two opposite side walls of the first chute are respectively provided with a first limiting protrusion and a second limiting protrusion, and the first limiting protrusion and the second limiting protrusion are spaced apart from the bottom wall of the first chute.

[0018] The first sliding part has a first sliding protrusion and a second sliding protrusion on opposite sides. The first sliding protrusion is disposed between the first limiting protrusion and the bottom wall of the first sliding groove, and the second sliding protrusion is disposed between the first limiting protrusion and the bottom wall of the first sliding groove.

[0019] In an optional embodiment, a third sliding protrusion and a fourth sliding protrusion are respectively provided on opposite sides of the first sliding portion. The third sliding protrusion is spaced apart from the first sliding protrusion and is located on the side of the first limiting protrusion away from the first sliding protrusion. The fourth sliding protrusion is spaced apart from the second sliding protrusion and is located on the side of the second limiting protrusion away from the second sliding protrusion.

[0020] In an optional embodiment, the lumbar support fixing seat has a first threaded hole, the locking member is threadedly engaged with the first threaded hole, and the locking member is used to extend from the first threaded hole and abut against the bottom wall of the first sliding groove; or,

[0021] The bottom wall of the first slide groove has at least one second threaded hole, and the locking member is used to pass through the waist support fixing seat and is threadedly engaged with the at least one second threaded hole; or,

[0022] The bottom wall of the first slide groove has at least one pin hole, and the locking member is used to pass through the waist support fixing seat and extend into the at least one pin hole.

[0023] In an optional embodiment, the first groove is open at at least one end of the seat fixing rod, and the lumbar support fixing seat can be slidably removed or installed through the opening.

[0024] Secondly, the present invention provides a seat, including the lumbar support component described in any of the foregoing embodiments.

[0025] The beneficial effects of this utility model embodiment include:

[0026] The lumbar support assembly includes a lumbar support structure, which includes a lumbar support fixing seat, a lumbar support pivot, and a lumbar support body. One of the lumbar support fixing seat and the lumbar support body is rotatably connected to the lumbar support pivot, and the other of the lumbar support fixing seat and the lumbar support body has a sliding space for the lumbar support pivot to pass through, and slides with the lumbar support pivot through the sliding space.

[0027] In other words, the lumbar support body can rotate relative to the lumbar support base or the lumbar support pivot, thereby achieving adjustment at different angles. Simultaneously, the lumbar support body can also slide within a sliding space by cooperating with the lumbar support pivot, achieving adjustment in different directions. Thus, in actual use, the lumbar support assembly can adjust the direction and angle of the lumbar support body simultaneously according to the user's needs, thereby improving user comfort.

[0028] The seat includes a lumbar support assembly, which has all the beneficial effects of the lumbar support assembly. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the lumbar support assembly provided in an embodiment of the present utility model;

[0031] Figure 2 This is a schematic diagram of the first adjustment of the lumbar support assembly provided in an embodiment of the present utility model;

[0032] Figure 3 This is a second adjustment schematic diagram of the lumbar support assembly provided in an embodiment of the present utility model;

[0033] Figure 4 A schematic diagram illustrating the third adjustment of the lumbar support assembly provided in this embodiment of the utility model;

[0034] Figure 5 A cross-sectional view of the lumbar support assembly provided in an embodiment of this utility model;

[0035] Figure 6 for Figure 5 A magnified view of a section at point D;

[0036] Figure 7 for Figure 5 A magnified view of a section at point E in the middle.

[0037] Icons: 100-Lumbar support assembly; 10-Seating fixing rod; 11-First sliding groove; 12-First limiting protrusion; 13-Second limiting protrusion; 20-Lumbar support structure; 21-Lumbar support fixing seat; 211-First sliding part; 2111-First sliding protrusion; 2112-Second sliding protrusion; 2113-Third sliding protrusion; 2114-Fourth sliding protrusion; 212-First fixing part; 213-Second fixing part; 214-First threaded hole; 22-Lumbar support pivot; 221-Mounting groove; 222-First limiting part; 223-Second sliding part; 224-Second limiting part; 23-Lumbar support body; 231-Lumbar support back panel; 2311-Slot; 232-Lumbar support cover plate; 2321-Second sliding groove; 233-Sliding space; 24-Elastic element; 25-Snap-fit ​​element; 30-Locking element. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] As described in the background section, in existing technical solutions, lumbar supports are typically fixed to the seat body using connectors such as screws or bolts. However, this fixed installation method limits the adjustability of the lumbar support position, preventing users from adjusting its position according to individual needs and thus reducing comfort.

[0045] Based on this, please refer to Figures 1-7 This utility model provides a lumbar support component 100 and a seat, which can effectively improve the aforementioned technical problems. Specifically, it allows the lumbar support body 23 to be adjusted according to the user's needs, thus improving user comfort. The lumbar support component 100 and the seat will be described in detail below.

[0046] This embodiment provides a seat (not shown in the figure), which includes a lumbar support assembly 100 and a seat body. The lumbar support assembly 100 is disposed on the seat body and can be easily adjusted by the user to different positions relative to the seat body to meet the user's comfort requirements.

[0047] For details, please refer to Figure 1 , Figure 1 This is a structural schematic diagram of the lumbar support assembly 100 provided in this embodiment, combined with... Figure 1 The lumbar support assembly 100 includes a lumbar support structure 20, which includes a lumbar support fixing seat 21, a lumbar support rotating shaft 22, and a lumbar support body 23. One of the lumbar support fixing seat 21 and the lumbar support body 23 is rotatably connected to the lumbar support rotating shaft 22, and the other of the lumbar support fixing seat 21 and the lumbar support body 23 has a sliding space 233 through which the lumbar support rotating shaft 22 passes, and slides with the lumbar support rotating shaft 22 via the sliding space 233.

[0048] In other words, the lumbar support body 23 can rotate relative to the lumbar support fixing seat 21 or the lumbar support pivot 22, thereby achieving adjustment functions at different angles. Simultaneously, the lumbar support body 23 can also slide within the sliding space 233 by cooperating with the lumbar support pivot 22, thereby achieving adjustment functions in different directions. Thus, in actual use, the lumbar support assembly 100 can simultaneously adjust the direction and angle of the lumbar support body 23 according to the user's needs, thereby improving user comfort.

[0049] like Figure 1 As shown, it should be noted that the lumbar support body 23 slides within the sliding space 233 in cooperation with the lumbar support pivot 22, which can be understood as adjusting the lumbar support body 23 in the vertical direction. Furthermore, in order to achieve more directional adjustment of the lumbar support body 23, the lumbar support assembly 100 also includes a seat fixing rod 10 and a locking member 30.

[0050] Specifically, the seat fixing rod 10 has a first sliding groove 11 and is used to be mounted on the seat body; the locking member 30 is mounted on the lumbar support fixing seat 21 and is used to lock and fix the lumbar support fixing seat 21 to the seat fixing rod 10.

[0051] As is easily understood, by sliding the lumbar support fixing seat 21 back and forth in the first slide groove 11, the lumbar support assembly 100 can be moved as a whole. This movement direction can be understood as adjusting the position of the lumbar support body 23 in the left and right directions, thereby coordinating with the adjustment in the up and down directions and the adjustment of the rotation angle to realize the position adjustment of the lumbar support body 23 in multiple directions and angles, thereby further meeting the different usage needs of users.

[0052] Additionally, it should be noted that after the lumbar support fixing seat 21 slides to the appropriate position, the locking component 30 can also lock and fix the lumbar support fixing seat 21 to the seat fixing rod 10, thereby improving the stability of the lumbar support assembly 100 installed on the chair body, making operation convenient, and ensuring user comfort and convenience. Furthermore, during logistics and transportation, the lumbar support structure 20 and the seat fixing rod 10 can be slid relative to each other to adapt to different packaging spaces; or they can be directly disassembled, reducing the packaging volume and thus lowering costs.

[0053] Please refer to Figures 2-4 , Figure 2 This is a schematic diagram of the first adjustment of the lumbar support assembly 100 provided in this embodiment. Figure 3 This is a schematic diagram of a second adjustment of the lumbar support assembly 100 provided in this embodiment. Figure 4 This is a schematic diagram of the third adjustment of the lumbar support assembly 100 provided in this embodiment.

[0054] like Figure 2 As shown, specifically, the lumbar support structure 20 can slide relative to the seat fixing rod 10 in the A1 or A2 direction; of course, it can also be understood as adjustment in the left and right direction. Figure 3 As shown, the lumbar support body 23 can slide relative to the lumbar support pivot 22 along the B1 or B2 direction; of course, it can also be understood as an adjustment in the vertical direction. Figure 4 As shown, the lumbar support pivot 22 can also rotate relative to the lumbar support mounting base 21, thereby driving the lumbar support body 23 to rotate. Of course, in actual use, the user can operate the lumbar support body 23 to rotate around the axis of the lumbar support pivot 22, such as... Figure 4 The directions C1 and C2 shown are clockwise and counterclockwise, respectively.

[0055] Understandably, with the above settings, the lumbar support body 23 can be adjusted in multiple directions to adapt to different needs, better support the waist, and improve comfort and user experience.

[0056] To improve the locking stability between the lumbar support fixing seat 21 and the seat fixing rod 10, the number of locking members 30 can be set to multiple, with the multiple locking members 30 spaced apart. For example, in this embodiment, the number of locking members 30 is two. Of course, in other embodiments, the number of locking members 30 can also be one, three, or four, etc.

[0057] Please continue to combine Figure 1 The lumbar support fixing seat 21 includes a first sliding part 211, a first fixing part 212, and a second fixing part 213. The first sliding part 211 is slidably disposed in the first sliding groove 11. The locking member 30 is disposed in the first sliding part 211 and is used to lock the first sliding part 211 to the seat fixing rod 10. The first fixing part 212 and the second fixing part 213 are spaced apart from each other in the first sliding part 211. The two ends of the lumbar support pivot 22 are rotatably connected to the first fixing part 212 and the second fixing part 213, respectively.

[0058] Further, please refer to Figure 5 and Figure 6 , Figure 5 This is a cross-sectional view of the lumbar support assembly 100 provided in this embodiment. Figure 6 for Figure 5 A magnified view of a section at point D, combined with... Figure 5 and Figure 6 The first sliding groove 11 has a first limiting protrusion 12 and a second limiting protrusion 13 on its opposite side walls, and both the first limiting protrusion 12 and the second limiting protrusion 13 are spaced apart from the bottom wall of the first sliding groove 11. The first sliding part 211 has a first sliding protrusion 2111 and a second sliding protrusion 2112 on its opposite side, the first sliding protrusion 2111 is disposed between the first limiting protrusion 12 and the bottom wall of the first sliding groove 11, and the second sliding protrusion 2112 is disposed between the first limiting protrusion 12 and the bottom wall of the first sliding groove 11.

[0059] By cooperating with the first limiting protrusion 12 and the first sliding protrusion 2111, and with the second limiting protrusion 13 and the second sliding protrusion 2112, the lumbar support fixing seat 21 can be limited when sliding with the seat fixing rod 10, thereby improving the sliding stability of the lumbar support fixing seat 21.

[0060] To further improve the sliding stability and smoothness of the lumbar support fixing seat 21, a third sliding protrusion 2113 and a fourth sliding protrusion 2114 are respectively provided on opposite sides of the first sliding part 211. The third sliding protrusion 2113 is spaced apart from the first sliding protrusion 2111 and is located on the side of the first limiting protrusion 12 away from the first sliding protrusion 2111. The fourth sliding protrusion 2114 is spaced apart from the second sliding protrusion 2112 and is located on the side of the second limiting protrusion 13 away from the second sliding protrusion 2112.

[0061] It is easy to understand that the third sliding protrusion 2113 and the fourth sliding protrusion 2114 can cooperate with the first sliding part 211 and the second sliding part 223 respectively, which can reduce the problem of the waist support fixing seat 21 moving up and down during the sliding process.

[0062] Please continue to combine Figure 5 and Figure 6 Specifically, in this embodiment, the lumbar support fixing seat 21 has a first threaded hole 214, and the locking member 30 is threadedly engaged with the first threaded hole 214. The locking member 30 extends out of the first threaded hole 214 and abuts against the bottom wall of the first slide groove 11. That is, in actual operation, the locking member 30 can be rotated to extend out of the first threaded hole 214 and then abut against the bottom wall of the first slide groove 11, thereby locking the lumbar support fixing seat 21 with the seat fixing rod 10. When it is necessary to adjust the position of the lumbar support fixing seat 21, simply loosen the locking member 30 to separate it from the bottom wall of the first slide groove 11, which is convenient to operate.

[0063] It should be noted that in other embodiments, other locking methods can also be used to lock the lumbar support fixing seat 21 and the seat fixing rod 10. For example, the bottom wall of the first slide groove 11 has at least one second threaded hole, and the locking member 30 is used to pass through the lumbar support fixing seat 21 and threadedly engage with at least one second threaded hole. This method can provide a locking effect. Of course, locking can also be achieved by a pin. For example, the bottom wall of the first slide groove 11 has at least one pin hole, and the locking member 30 is used to pass through the lumbar support fixing seat 21 and extend into at least one pin hole. It is easy to understand that this operation method is more convenient.

[0064] Combination Figure 1 and Figure 5The lumbar support body 23 includes a lumbar support back panel 231 and a lumbar support cover panel 232. The lumbar support back panel 231 and the lumbar support cover panel 232 are connected, and there is a sliding space 233 between the lumbar support back panel 231 and the lumbar support cover panel 232. The lumbar support pivot 22 is parallel to the extension direction of the first sliding groove 11 and perpendicular to the extension direction of the sliding space 233. The lumbar support pivot 22 passes through the sliding space 233 and simultaneously slides with the lumbar support back panel 231 and the lumbar support cover panel 232. That is, by operating the lumbar support back panel 231 and the lumbar support cover panel 232, the lumbar support pivot 22 can move within the sliding space 233, thereby realizing the vertical adjustment of the lumbar support body 23.

[0065] In order to facilitate the sliding fit between the lumbar support pivot 22 and the lumbar support cover plate 232, in this embodiment, a second slide groove 2321 is provided on the side of the lumbar support cover plate 232 near the sliding space 233, and the side of the lumbar support pivot 22 is slidably disposed in the second slide groove 2321.

[0066] Further, please refer to Figure 7 , Figure 7 for Figure 5 A magnified view of a section at point E in the middle, combined with... Figure 5 and Figure 7 The lumbar support pivot 22 has a mounting groove 221. The lumbar support structure 20 also includes an elastic element 24 and a snap-fit ​​element 25. The elastic element 24 is disposed in the mounting groove 221, and a part of the snap-fit ​​element 25 is disposed in the mounting groove 221 and abuts against the elastic element 24. The lumbar support back plate 231 or the lumbar support cover plate 232 has multiple snap-fit ​​slots 2311 on the side facing the lumbar support pivot 22. The other part of the snap-fit ​​element 25 is used to snap-fit ​​with at least one of the multiple snap-fit ​​slots 2311.

[0067] It should be noted that, specifically in this embodiment, the lumbar support pivot 22 has a mounting groove 221 on the side near the lumbar support back panel 231, and the lumbar support back panel 231 has multiple slots 2311 on the side near the lumbar support pivot 22. Of course, in other embodiments, the mounting groove 221 can also be located on the side of the lumbar support pivot 22 near the lumbar support cover 232, and the multiple slots 2311 can also be located on the side of the lumbar support cover 232 near the lumbar support pivot 22.

[0068] When the user leans against the lumbar support body 23, the user's leaning force causes the snap fastener 25 and at least one slot 2311 to fit tightly together, making it difficult for the snap fastener 25 to come out of the slot 2311, which helps to avoid relative sliding.

[0069] Understandably, when adjusting the lumbar support body 23 up and down, the lumbar support body 23 can be directly operated to slide relative to the lumbar support pivot 22. During this process, the side wall of the lumbar support back panel 231 applies force to the snap-fit ​​member 25, causing the snap-fit ​​member 25 to first retract into the mounting groove 221. When the snap-fit ​​member 25 is located in another slot 2311, the elastic member 24 can apply elastic force to the snap-fit ​​member 25, causing the snap-fit ​​member 25 to extend and snap into the slot 2311, thereby realizing the adjustment and fixation of the up and down position.

[0070] It should be noted that in this embodiment, the snap-fit ​​component 25 is a cylindrical structure, and the corresponding slot 2311 is an arc groove. The cooperation between the two has a guiding effect, which can improve the smoothness of sliding and snap-fit. In addition, in this embodiment, the elastic component 24 is specifically a spring. Of course, in other embodiments, the elastic component 24 can also be a sheet or a rubber sleeve or other elastic structures.

[0071] Please continue to combine Figure 1 and Figure 5 The lumbar support pivot 22 includes a first limiting part 222, a second sliding part 223, and a second limiting part 224 connected in sequence. The first limiting part 222 and the second limiting part 224 are rotatably connected to the lumbar support fixing seat 21. The second sliding part 223 passes through the sliding space 233 and simultaneously slides with the lumbar support back panel 231 and the lumbar support cover plate 232. The lumbar support back panel 231 and the lumbar support cover plate 232 are both located between the first limiting part 222 and the second limiting part 224.

[0072] By setting the first limiting part 222 and the second limiting part 224, the swaying of the lumbar support body 23 can be reduced. When the lumbar support body 23 rotates, the rotational stability can be improved under the limiting action of the first limiting part 222 and the second limiting part 224, thereby ensuring the stability of subsequent support for the waist.

[0073] In addition, in order to facilitate the installation or removal of the lumbar support structure 20 and the seat fixing rod 10, the first slide groove 11 is open at at least one end of the seat fixing rod 10, and the lumbar support fixing seat 21 can be slidably removed or installed through the opening, thereby improving the efficiency of installation and removal and further facilitating user use.

[0074] In summary, the embodiments of this utility model provide a lumbar support assembly 100 and a seat. The lumbar support assembly 100 includes a lumbar support structure 20, which includes a lumbar support fixing seat 21, a lumbar support pivot 22, and a lumbar support body 23. One of the lumbar support fixing seat 21 and the lumbar support body 23 is rotatably connected to the lumbar support pivot 22, and the other of the lumbar support fixing seat 21 and the lumbar support body 23 has a sliding space 233 through which the lumbar support pivot 22 passes, and slides with the lumbar support pivot 22 via the sliding space 233. That is, the lumbar support body 23 can rotate relative to the lumbar support fixing seat 21 or the lumbar support pivot 22, thereby realizing the adjustment function of different angles. At the same time, the lumbar support body 23 can also slide within the sliding space 233 by cooperating with the lumbar support pivot 22, thereby realizing the adjustment function of different directions. Thus, in actual use, the lumbar support assembly 100 can adjust the direction and angle of the lumbar support body 23 according to the user's needs, thereby improving the user's comfort.

[0075] The seat includes a lumbar support assembly 100, which has all the functions and benefits of the lumbar support assembly 100.

[0076] The above description is merely a specific embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lumbar support assembly, characterized in that, It includes a lumbar support structure (20), which includes a lumbar support fixing seat (21), a lumbar support pivot (22), and a lumbar support body (23); One of the lumbar support fixing seat (21) and the lumbar support body (23) is rotatably connected to the lumbar support pivot (22), and the other of the lumbar support fixing seat (21) and the lumbar support body (23) has a sliding space (233) through which the lumbar support pivot (22) passes, and slides with the lumbar support pivot (22) via the sliding space (233).

2. The lumbar support assembly according to claim 1, characterized in that, The lumbar support assembly (100) also includes a seat fixing rod (10) and a locking member (30). The seat fixing rod (10) has a first sliding groove (11) and is used to be mounted on the seat body. The locking member (30) is disposed on the lumbar support fixing seat (21) and is used to lock and fix the lumbar support fixing seat (21) and the seat fixing rod (10).

3. The lumbar support assembly according to claim 2, characterized in that, The lumbar support body (23) includes a lumbar support back panel (231) and a lumbar support cover panel (232). The lumbar support back panel (231) is connected to the lumbar support cover panel (232), and there is a sliding space (233) between the lumbar support back panel (231) and the lumbar support cover panel (232). The lumbar support pivot (22) is parallel to the extension direction of the first slide groove (11), and the lumbar support pivot (22) is perpendicular to the extension direction of the sliding space (233). The lumbar support pivot (22) passes through the sliding space (233) and simultaneously slides with the lumbar support back panel (231) and the lumbar support cover plate (232).

4. The lumbar support assembly according to claim 3, characterized in that, The lumbar support pivot (22) has an installation groove (221). The lumbar support structure (20) also includes an elastic element (24) and a snap-fit ​​element (25). The elastic element (24) is disposed in the installation groove (221). A part of the snap-fit ​​element (25) is disposed in the installation groove (221) and abuts against the elastic element (24). The lumbar support back panel (231) or the lumbar support cover (232) has multiple slots (2311) on the side facing the lumbar support pivot (22). Another part of the snap-fit ​​element (25) is used to snap-fit ​​with at least one of the multiple slots (2311).

5. The lumbar support assembly according to claim 3, characterized in that, The lumbar support cover plate (232) has a second slide groove (2321) on the side near the sliding space (233), and one side of the lumbar support pivot (22) is slidably disposed in the second slide groove (2321).

6. The lumbar support assembly according to claim 3, characterized in that, The lumbar support pivot (22) includes a first limiting part (222), a second sliding part (223), and a second limiting part (224) connected in sequence. The first limiting part (222) and the second limiting part (224) are rotatably connected to the lumbar support fixing seat (21). The second sliding part (223) passes through the sliding space (233) and simultaneously slides with the lumbar support back panel (231) and the lumbar support cover plate (232). The lumbar support back panel (231) and the lumbar support cover plate (232) are both located between the first limiting part (222) and the second limiting part (224).

7. The lumbar support assembly according to claim 2, characterized in that, The lumbar support fixing seat (21) includes a first sliding part (211), a first fixing part (212) and a second fixing part (213). The first sliding part (211) is slidably disposed in the first sliding groove (11). The locking member (30) is disposed in the first sliding part (211) and is used to lock and fix the first sliding part (211) to the seat fixing rod (10). The first fixing part (212) and the second fixing part (213) are spaced apart from the first sliding part (211), and the two ends of the waist rest pivot (22) are rotatably connected to the first fixing part (212) and the second fixing part (213), respectively.

8. The lumbar support assembly according to claim 7, characterized in that, The first sliding groove (11) has a first limiting protrusion (12) and a second limiting protrusion (13) on its opposite side walls. The first limiting protrusion (12) and the second limiting protrusion (13) are spaced apart from the bottom wall of the first sliding groove (11). The first sliding part (211) has a first sliding protrusion (2111) and a second sliding protrusion (2112) on opposite sides. The first sliding protrusion (2111) is disposed between the first limiting protrusion (12) and the bottom wall of the first sliding groove (11), and the second sliding protrusion (2112) is disposed between the first limiting protrusion (12) and the bottom wall of the first sliding groove (11).

9. The lumbar support assembly according to claim 8, characterized in that, The first sliding part (211) is provided with a third sliding protrusion (2113) and a fourth sliding protrusion (2114) on opposite sides. The third sliding protrusion (2113) is spaced apart from the first sliding protrusion (2111) and is located on the side of the first limiting protrusion (12) away from the first sliding protrusion (2111). The fourth sliding protrusion (2114) is spaced apart from the second sliding protrusion (2112) and is located on the side of the second limiting protrusion (13) away from the second sliding protrusion (2112).

10. The lumbar support assembly according to claim 2, characterized in that, The lumbar support fixing seat (21) has a first threaded hole (214), the locking member (30) is threadedly engaged with the first threaded hole (214), and the locking member (30) is used to extend out from the first threaded hole (214) and abut against the bottom wall of the first slide groove (11); or, The bottom wall of the first slide groove (11) is provided with at least one second threaded hole, and the locking member (30) is used to pass through the waist support fixing seat (21) and is threadedly engaged with the at least one second threaded hole; or, The bottom wall of the first slide groove (11) is provided with at least one pin hole, and the locking member (30) is used to pass through the waist support fixing seat (21) and extend into the at least one pin hole.

11. The lumbar support assembly according to claim 2, characterized in that, The first groove (11) is open at at least one end of the seat fixing rod (10), and the lumbar support fixing seat (21) can be slidably removed or installed through the opening.

12. A type of seat, characterized in that, Includes the lumbar support assembly (100) as described in any one of claims 1-11.

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