Seat assembly and vehicle

Abstract

The embodiment of the present application provides a seat assembly and a car, the seat assembly includes: a seat, including a shell, the shell is provided with an armrest fixing hole; an armrest, including an armrest body and an armrest shaft connected to the armrest body, the armrest shaft including a first shaft end connected to the armrest fixing hole and a second shaft end fixed to the armrest body; a connector, connecting the first shaft end with the armrest fixing hole; the connector includes a cylindrical connector body, the connector body is clamped in the armrest fixing hole, and the first shaft end is inserted in the connector body; the connector includes an undercut, the undercut includes an undercut extension portion extending from the side wall of the connector body and an undercut limit portion located at the free end of the undercut extension portion; when the first shaft end is inserted in the connector body, the undercut limit portion radially protrudes outside the connector body and is clamped on a side of the armrest fixing hole away from the armrest. The armrest of the seat assembly of the present application is easy to disassemble and assemble.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of transportation, and in particular to a seat assembly and a car. Background Art

[0002] With the development of society, cars have become an indispensable means of transportation for daily travel, and the comfort requirements are getting higher and higher. Armrests are an important part of comfort configuration, and their assembly requirements and reliability and durability requirements are constantly improving.

[0003] Some armrests and seats are often connected by bolts + sleeves. Generally, the bolts are installed on the outside. When installing, the inner side of the armrest shaft is inserted into the sleeve, and the outer side is aligned with the mounting hole of the armrest bracket. Bolts are used to tighten from the outside to the inside, and then the shielding parts are covered. When disassembling, the shielding parts need to be removed, and the disassembly process of unscrewing the bolts is complicated and costly. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a seat assembly and a car, wherein the armrest of the seat assembly is easy to disassemble and assemble.

[0005] One aspect of an embodiment of the present application provides a seat assembly, comprising:

[0006] The seat comprises a shell, wherein the shell is provided with an armrest fixing hole;

[0007] An armrest, comprising an armrest body and an armrest shaft connected to the armrest body, wherein the armrest shaft comprises a first shaft end connected to the armrest fixing hole and a second shaft end fixed to the armrest body;

[0008] A connecting member, connecting the first end of the rotating shaft and the armrest fixing hole;

[0009] The connecting member comprises a connecting member body in a cylindrical shape, the connecting member body is clamped in the armrest fixing hole, and the first end of the rotating shaft is inserted in the connecting member body;

[0010] The connecting member includes an undercut, and the undercut includes an undercut extension portion extending from the side wall of the connecting member body and an undercut limiting portion located at the free end of the undercut extension portion; when the first end of the rotating shaft is inserted into the connecting member body, the undercut limiting portion radially protrudes outside the connecting member body and is snapped onto a side of the armrest fixing hole facing away from the armrest.

[0011] Optionally, when the first end of the rotating shaft is not inserted into the connecting member body, the free end of the undercut extension portion is bent and extended into the connecting member body relative to the other end of the undercut extension portion, and a part of the undercut limiting portion is radially located in the connecting member body; and / or

[0012] When the first end of the rotating shaft is not inserted into the connecting member body, the undercut limit portion radially protrudes outside the connecting member body and is snapped onto a side of the armrest fixing hole facing away from the armrest; when the first end of the rotating shaft is inserted into the connecting member body, the first end of the rotating shaft radially pushes the undercut limit portion outward.

[0013] Optionally, the connecting member also includes a limiting protrusion which is movably arranged on the side wall of the connecting member body in the radial direction, and the limiting protrusion at least partially protrudes into the connecting member body. The first end of the rotating shaft is provided with a limiting groove which is radially recessed inward, and the limiting groove includes a first groove wall and a second groove wall which are opposite to each other in the length direction of the armrest rotating shaft. When the first end of the rotating shaft is inserted into the connecting member body, the limiting protrusion is clamped in the limiting groove and clamped between the first groove wall and the second groove wall.

[0014] Optionally, the connector body includes an undercut groove extending from one end of the connector body away from the armrest body to the other end, the undercut extension portion extends from the bottom of the undercut groove close to the armrest body, the undercut length is less than or equal to the axial depth of the undercut groove of the connector body, and the undercut limit portion is close to the end of the connector body away from the armrest body relative to the limit protrusion.

[0015] Optionally, the first end of the rotating shaft also includes a self-locking portion, which is farther away from the second end of the rotating shaft relative to the limiting groove, and which protrudes radially outward relative to the limiting groove. The maximum diameter of the self-locking portion is larger than the minimum radial dimension of the undercut when the first end of the rotating shaft is not inserted into the first end of the rotating shaft, and when the first end of the rotating shaft is inserted into the main body of the connecting member, the self-locking portion pushes the undercut radially outward.

[0016] Optionally, the limiting protrusion includes a disassembly ear protruding from the connector body, and the disassembly ear is provided with a tool matching hole for matching with a disassembly tool.

[0017] Optionally, the connecting member also includes a rotation limit member extending outward from the side wall of the connecting member body, and the outer shell also includes a rotation limit hole located outside the armrest fixing hole, and the rotation limit member is inserted into the rotation limit hole. The connecting member is fixed circumferentially relative to the seat, and the armrest shaft can rotate circumferentially relative to the connecting member.

[0018] Optionally, the connecting member also includes a limiting protrusion which is movably provided on the side wall of the connecting member body in the radial direction, and when the first end of the rotating shaft is inserted into the connecting member body, the limiting protrusion radially limits the first end of the rotating shaft, and the undercut, the limiting protrusion and the rotation limiting member are staggered in the circumferential direction of the connecting member body.

[0019] Optionally, the connecting member also includes a first axial limit member arranged at one end of the connecting member body close to the armrest body, the first axial limit member protrudes radially outward relative to the connecting member body, and the armrest shaft also includes a second axial limit member protruding outward from the outer wall of the armrest shaft, and the first axial limit member is clamped between the second axial limit member and the armrest fixing hole.

[0020] Another aspect of the present application provides a vehicle, which includes a plurality of the above-mentioned seat assemblies.

[0021] The seat assembly of the present application uses an undercut limiter to axially limit the outer shell and the connecting piece. When disassembly is required, the connecting piece is separated from the armrest fixing hole; when installation is required, the connecting piece only needs to be inserted into the armrest fixing hole. In this way, the seat assembly of the present application realizes the function of easy disassembly and assembly of the seat and the armrest, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional schematic diagram of a seat assembly according to an embodiment of the present application;

[0023] Figure 2 for Figure 1 A perspective schematic diagram of the connector of the seat assembly shown;

[0024] Figure 3 for Figure 1 A cross-sectional view of the connector of the seat assembly shown along section AA;

[0025] Figure 4 for Figure 1 A cross-sectional view of a connection member of a seat assembly along section BB is shown.

[0026] Among them, the shell 1, the armrest shaft 2, the armrest fixing hole 11, the first end of the shaft 21, the second end of the shaft 22, the connecting member 3, the connecting member body 31, the undercut 32, the undercut extension portion 321, the undercut limiting portion 322, the undercut groove 324, the self-locking portion 211, the limiting protrusion 33, the limiting groove 23, the limiting protrusion guide surface 231, the limiting protrusion matching guide surface 331, the undercut guide surface 323, the disassembly ear 332, the tool matching hole 3321, the rotation limiting member 34, the rotation limiting hole 12, the first axial limiting member 35, and the second axial limiting member 36. DETAILED DESCRIPTION

[0027] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0028] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be of the ordinary meaning understood by those of ordinary skill in the art to which the present application pertains. The terms "first", "second" and similar words used in the specification and claims of the present application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. "Plurality" or "several" means two or more. Unless otherwise indicated, words such as "front", "rear", "lower" and / or "upper" are for convenience of description only and are not limited to one position or a spatial orientation. The words "comprising" or "including" and similar words mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. The words "connected" or "coupled" and similar words are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms "a", "the" and "said" used in the specification and appended claims of the present application are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0029] For the seat assembly of an automobile, the armrest often needs to rotate relative to the seat to facilitate the passenger's entry and exit. Therefore, the armrest is provided with an armrest rotating shaft 2. Some armrest rotating shafts 2 are connected to the seat through bolts and bushings, but the damage rate of the seat armrest is relatively high, and the disassembly and assembly are complicated with such a setting. Figure 1 A perspective view of the seat assembly according to an embodiment of the present application. Please refer to Figure 1The present application provides a seat assembly, including a seat (not shown), an armrest and a connector 3, wherein the seat includes a shell 1 and a seat body (not shown) covered by the shell 1, the shell 1 is provided with an armrest fixing hole 11, and the armrest fixing hole 11 is used to fix the armrest to the seat through the connector 3. The armrest includes an armrest body (not shown) and an armrest shaft 2 connected to the armrest body (not shown), and the armrest shaft 2 includes a shaft first end 21 connected to the armrest fixing hole 11 and a shaft second end 22 fixed to the armrest body. In some embodiments, the armrest body is perpendicular to the armrest shaft 2 and fixed to the armrest shaft 2, and rotates with the armrest shaft 2. In some embodiments, the armrest is fixed to one or both sides of the seat. In the first position, the armrest is perpendicular to the seat back to improve the passenger's riding experience. In the second position, the armrest is stored parallel to the seat back to facilitate the passenger's entry and exit. The connector 3 connects the first end 21 of the shaft with the armrest fixing hole 11. The connector 3 between the armrest and the seat of the seat assembly of the present application includes a cylindrical connector body 31, which is clamped in the armrest fixing hole 11, and the first end 21 of the shaft is inserted into the connector body 31. In some embodiments, the armrest is fixed to the shell 1 of the seat only on one side through the first end 21 of the armrest shaft 2, which saves materials, is easy to disassemble and assemble, and has a beautiful appearance. Please refer to Figure 1 In some embodiments, the connecting member 3 is cylindrical, the inner ring is connected to the armrest shaft 2, and the outer ring is connected to the shell 1 of the seat, so that the armrest shaft 2 is connected to the seat and can rotate relative to the seat.

[0030] Figure 2 for Figure 1 A three-dimensional schematic diagram of the connector 3 of the seat assembly shown; Figure 3 for Figure 1 A sectional view of the connector 3 of the seat assembly shown along section AA; Figure 4 for Figure 1 The sectional view of the connector 3 of the seat assembly along the BB section is shown. Figures 2 - 4 The seat assembly of the present application, its connector 3 includes an undercut 32, and the undercut 32 includes an undercut extension 321 extending from the side wall of the connector body 31 and an undercut limiter 322 located at the free end of the undercut extension 321; when the first end 21 of the rotating shaft is inserted into the connector body 31, the undercut limiter 322 radially protrudes outside the connector body 31 and snaps into the side of the armrest fixing hole 11 away from the armrest. In this way, the undercut limiter 322 axially limits the housing 1 and the connector 3, and when disassembly is required, the first end 21 of the rotating shaft is moved out of the connector body 31 to separate the connector 3 from the armrest fixing hole 11; when installation is required, the connector 3 only needs to be inserted into the armrest fixing hole 11. In this way, the seat assembly of the present application is realized, and the seat and armrest are easy to disassemble and assemble.

[0031] In the illustrated embodiment, the connector body 31 includes a reverse buckle groove 324 extending from one end of the connector body 31 away from the armrest body to the other end, and the reverse buckle extension 321 extends from the bottom of the reverse buckle groove 324 close to the armrest body. Thus, the reverse buckle 32 extends from the bottom of the connector body 31 close to the armrest body, the reverse buckle extension 321 extends within the reverse buckle groove 324, and the reverse buckle limiting portion 322 does not exceed the length of the connector body 31 in the axial direction. Therefore, the connector 3 of the present application is structurally compact, reasonably designed, and material-saving.

[0032] In the illustrated embodiment, when the first end 21 of the rotating shaft is not inserted into the connector body 31, the reverse buckle limiting portion 322 radially protrudes outside the connector body 31 and is buckled to the side of the armrest fixing hole 11 away from the armrest. When the connector 3 is not inserted into the armrest fixing hole 11, the radial dimension of the reverse buckle 32 thereof is also larger than the dimension of the armrest fixing hole 11. Thus, when the connector 3 needs to be inserted into the armrest fixing hole 11 of the seat, the reverse buckle 32 needs to be closed inward first, then the connector 3 is inserted into the armrest fixing hole 11, and finally the position of the reverse buckle 32 is restored, so that the reverse buckle limiting portion 322 of the reverse buckle 32 radially protrudes outside the connector body 31 and is buckled to the side of the armrest fixing hole 11 away from the armrest. In this way, the connector 3 can be pre-fixed to the armrest fixing hole 11 of the seat first.

[0033] In this embodiment, a reverse buckle guiding surface 323 is provided at the top end of the reverse buckle 32 of the connector 3. During the insertion of the connector 3, the armrest fixing hole 11 can cause the reverse buckle 32 to close inward, facilitating the direct insertion of the reverse buckle 32 into the armrest fixing hole 11 of the seat.

[0034] In other embodiments, when the first end 21 of the rotating shaft is not inserted into the connector body 31, the free end of the reverse buckle extension 321 bends and extends into the connector body 31 relative to the other end of the reverse buckle extension 321, and a part of the reverse buckle limiting portion 322 is radially located within the connector body 31. This facilitates the entry and exit of the connector 3 in the armrest fixing hole 11, realizing the easy disassembly and assembly function of the seat and the armrest of the seat assembly of the present application.

[0035] In the illustrated embodiment, the reverse buckle 32 is rigidly connected to the connector body 31, and when an external force is applied, the reverse buckle extension 321 bends inward through the elasticity of the material. Thus, the connector 3 can be integrally manufactured, the manufacturing process is simple, and the connection between the connector 3 and the armrest fixing hole 11 is closer. In other embodiments, the bottom of the reverse buckle 32 is rotatably connected to the connector body 31. For example, the bottom of the reverse buckle 32 and the connector body 31 are connected by a rotating shaft, and the reverse buckle limiting portion 322 can rotate relative to the connector body 31, improving the service life of the connector 3.

[0036] In some embodiments, the connecting member 3 is fixedly connected to the armrest shaft 2 so that when the first end 21 of the shaft is inserted into the connecting member body 31, the undercut 32 cannot fall out of the armrest fixing hole 11. There is no limitation on the specific axial fixing method of the connecting member 3 and the armrest shaft 2.

[0037] In the illustrated embodiment, the connector 3 further includes a limiting protrusion 33 movably disposed on the side wall of the connector body 31 in the radial direction, the limiting protrusion 33 at least partially protrudes from the connector body 31, the first end 21 of the rotating shaft is provided with a limiting groove 23 recessed radially inward, the limiting groove 23 includes a first groove wall and a second groove wall opposite to each other in the length direction of the armrest rotating shaft 2, when the first end 21 of the rotating shaft is inserted into the connector body 31, the limiting protrusion 33 is clamped in the limiting groove 23, and clamped between the first groove wall and the second groove wall. In this way, the armrest rotating shaft 2 and the connector 3 are connected and fixed in the axial direction. There is no restriction on the shape of the limiting protrusion 33 as long as it can abut against the side wall of the limiting groove 23. In some embodiments, the limiting groove 23 is a groove surrounding the first end 21 of the rotating shaft. In this way, no matter how the armrest rotating shaft 2 is rotated relative to the seat at different angles, the limiting protrusion 33 can ensure the axial limitation of the limiting groove 23, so that the armrest and the connecting member 3 remain fixedly connected during the rotation of the armrest.

[0038] Please refer to Figure 1 In the illustrated embodiment, when the first end 21 of the rotating shaft is inserted into the connecting member body 31, the first end 21 of the rotating shaft pushes the undercut limit portion 322 radially outward. In some embodiments, the first end 21 of the rotating shaft further includes a self-locking portion 211, the self-locking portion 211 is away from the second end 22 of the rotating shaft relative to the limit groove 23, the self-locking portion 211 protrudes radially outward relative to the limit groove 23, and the maximum diameter of the self-locking portion 211 is greater than the minimum radial dimension of the undercut 32 when the first end 21 of the rotating shaft is not inserted into the connecting member body 31, and when the first end 21 of the rotating shaft is inserted into the connecting member body 31, the self-locking portion 211 pushes the undercut 32 radially outward. The self-locking portion 211 of the first end 21 of the rotating shaft abuts against the inner wall of the undercut 32, so that the undercut 32 cannot be closed inward, so that the first end 21 of the rotating shaft can ensure that the undercut limit portion 322 does not fall out of the armrest fixing hole 11 after the rotating shaft is inserted into the connecting member body 31, thereby realizing the self-locking connection between the seat and the armrest of the present application. In this embodiment, the seat and the armrest are self-lockingly connected, and the first end 21 of the shaft is finally inserted into the connector body 31 during installation, and the first end 21 of the shaft is first pulled out of the connector body 31 during disassembly, thereby realizing the easy disassembly and assembly function of the seat assembly and the armrest of the present application.

[0039] In the illustrated embodiment, the length of the reverse buckle 32 is less than or equal to the depth of the reverse buckle groove 324 in the axial direction of the connector body 31, and the reverse buckle limiting portion 322 is closer to the end of the connector body 31 away from the armrest body relative to the limiting protrusion 33. On the armrest rotating shaft 2, the self-locking portion 211 of the first end 21 of the rotating shaft is closer to the end point of the first end of the armrest relative to the limiting groove 23. In this way, the connector 3 has a compact structure and a reasonable design.

[0040] In the illustrated embodiment, a limiting protrusion guiding surface 231 is provided at the top end of the armrest rotating shaft 2. The limiting protrusion includes a limiting protrusion mating guiding surface 331. The limiting protrusion guiding surface 231 and the limiting protrusion guiding surface 231 can abut against each other when the armrest rotating shaft 2 is inserted into the connector body 31, causing the limiting protrusion 33 to displace outward from the connector body 31 so as to be caught in the limiting groove 23. In this way, it is convenient to directly insert the armrest rotating shaft 2 into the connector body 31.

[0041] In some embodiments, the limiting protrusion 33 includes a disassembly ear 332 protruding outside the connector body 31, and the disassembly ear 332 is provided with a tool mating hole 3321 for mating with a disassembly tool. In the illustrated embodiment, the tool mating hole 3321 is a through hole on the disassembly ear 332 protruding outside the connector body 31. In other embodiments, it is a blind hole. In this way, a disassembly tool, such as a pair of needle-nose pliers, is inserted into the through hole or blind hole of the disassembly ear 332, and an external force is applied to make the limiting protrusion 33 move out of the limiting groove 23, so that the disassembly of the armrest rotating shaft 2 and the connector 3 can be realized. In this way, the easy disassembly function of the armrest of the seat assembly of the present application and the seat is realized.

[0042] The installation process of the seat and the armrest of the present application in the illustrated embodiment is as follows: First, insert the connector 3 into the armrest fixing hole 11 of the seat shell 1 until the reverse buckle limiting portion 322 is caught on the side of the shell 1 away from the armrest. Then, insert the first end 21 of the rotating shaft of the armrest into the connector body 31 until the limiting protrusion 33 is caught in the limiting groove 23. At this time, the self-locking portion 211 located at the front end of the limiting groove 23 abuts against the reverse buckle limiting portion 322 so that the reverse buckle limiting portion 322 cannot be disengaged from the armrest fixing hole 11, and finally the fixed connection between the armrest and the seat is realized.

[0043] The installation process of the seat and the armrest of the present application in the illustrated embodiment is as follows: First, use a disassembly tool to pull the disassembly ear 332 outwards so that the limiting protrusion 33 moves out of the limiting groove 23. Then, pull out the armrest rotating shaft 2 from the connector body 31. At this time, the reverse buckle 32 loses the abutment of the self-locking portion 211. Then, use a disassembly tool to bend the reverse buckle 32 inwards, and the connector 3 can be pulled out of the armrest fixing hole 11. In this way, the disassembly of the armrest and the seat is realized.

[0044] In summary, the seat assembly of the present application not only realizes reliable and simple self-locking in the axial direction, but also is convenient for disassembly and assembly.

[0045] In order to realize the rotation function of the armrest relative to the seat, in the illustrated embodiment, the armrest shaft 2 can rotate in the connecting member body 31, and the connecting member body 31 is fixed circumferentially relative to the seat. In the illustrated embodiment, the connecting member 3 also includes a rotation limit member 34 extending outward from the side wall of the connecting member body 31, and the outer shell 1 also includes a rotation limit hole 12 located outside the armrest fixing hole 11, and the rotation limit member 34 is inserted in the rotation limit hole 12. The connecting member 3 is fixed circumferentially relative to the seat, and the armrest shaft 2 can rotate circumferentially relative to the connecting member 3.

[0046] In other embodiments, the armrest shaft 2 is fixed in the circumferential direction relative to the connecting member body 31, and the connecting member body 31 is rotatable relative to the seat. The armrest shaft 2 includes a shaft rotation limiter 34 located on the outer wall of the armrest shaft 2, and the connecting member 3 also includes a shaft rotation limiter mating member extending outward from the side wall of the connecting member body 31, so that the armrest can also be rotated relative to the seat. Correspondingly, if the armrest needs to be fixed and cannot rotate, the above two limiters can be set at the same time, and the armrest shaft 2 is fixed in the circumferential direction relative to the connecting member body 31 and the connecting member 3 is fixed in the circumferential direction relative to the seat.

[0047] In some embodiments, the connector 3 further includes a limiting protrusion 33 movably disposed on the side wall of the connector body 31 in the radial direction. When the first end 21 of the rotating shaft is inserted into the connector body 31, the limiting protrusion 33 radially limits the first end 21 of the rotating shaft, and the undercut 32, the limiting protrusion 33 and the rotation limiting member 34 are staggered in the circumferential direction of the connector body 31. In this way, the undercut 32, the limiting protrusion 33 and the rotation limiting member 34 are reasonably arranged, and the mutual staggering allows the three to be arranged in a close position in the axial direction, making the connector 3 compact. In some embodiments, the undercut 32, the limiting protrusion 33 and the rotation limiting member 34 may be arranged relative to each other or not.

[0048] Please continue to refer to Figure 1 In some embodiments, the connector 3 further includes a first axial stopper 35 disposed at one end of the connector body 31 close to the armrest body, the first axial stopper 35 protrudes radially outward relative to the connector body 31, the armrest shaft 2 further includes a second axial stopper 36 protruding outward from the outer wall of the armrest shaft 2, and the first axial stopper 35 is clamped between the second axial stopper 36 and the armrest fixing hole 11. In this way, the connector 3 is limited by the undercut stopper 322 in the first direction along the axial direction of the connector 3 relative to the seat shell 1, and by the first axial stopper 35 in the second direction; the armrest shaft 2 is limited by the stopper protrusion 33 in the first direction along the axial direction of the armrest shaft 2 relative to the connector 3, and by the second axial stopper 36 in the second direction. In this way, when the armrest is connected to the seat, the armrest shaft 2 is axially fixed relative to the connector 3 and the connector 3 is axially fixed relative to the seat shell 1, and the seat and the armrest of the seat assembly of the present application are firmly connected.

[0049] On the other hand, the present application also provides an automobile (not shown), which includes the aforementioned seat assembly. Since the seat assembly of the present application is used in the automobile of the present application, the riding experience of passengers is good, and when the armrest of any seat assembly is damaged, since the armrest of the seat assembly is easily detachable, it can be replaced in time.

[0050] The seat assembly and the automobile provided by the embodiments of the present application have been introduced in detail above. Specific examples are used in this article to elaborate on the seat assembly and the automobile of the embodiments of the present application. The description of the above embodiments is only used to help understand the core idea of the present application, and is not intended to limit the present application. It should be noted that for those of ordinary skill in the art, without departing from the spirit and principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications should also fall within the protection scope of the appended claims of the present application.

Claims

1. A seat assembly, characterized in that, The seat assembly comprises: The seat comprises a shell, wherein the shell is provided with an armrest fixing hole; An armrest, comprising an armrest body and an armrest shaft connected to the armrest body, wherein the armrest shaft comprises a first shaft end connected to the armrest fixing hole and a second shaft end fixed to the armrest body; A connecting member, connecting the first end of the rotating shaft and the armrest fixing hole; The connecting member comprises a connecting member body in a cylindrical shape, the connecting member body is clamped in the armrest fixing hole, and the first end of the rotating shaft is inserted in the connecting member body; The connecting member includes an undercut, and the undercut includes an undercut extension portion extending from a side wall of the connecting member body and an undercut stop portion located at a free end of the undercut extension portion; when the first end of the rotating shaft is inserted into the connecting member body, the undercut stop portion radially protrudes outside the connecting member body, is snapped on a side of the handrail fixing hole away from the handrail, and the first end of the rotating shaft radially pushes the undercut stop portion outward; Wherein, the connecting member further comprises a limiting protrusion movably arranged on the side wall of the connecting member body in the radial direction, the limiting protrusion at least partially protrudes inside the connecting member body, the first end of the rotating shaft is provided with a limiting groove recessed radially inward, the limiting groove comprises a first groove wall and a second groove wall opposite to each other in the length direction of the armrest rotating shaft, when the first end of the rotating shaft is inserted into the connecting member body, the limiting protrusion is clamped in the limiting groove and clamped between the first groove wall and the second groove wall; The connector body includes an undercut groove extending from one end of the connector body away from the armrest body to the other end, the undercut extension portion extends from the bottom of the undercut groove close to the armrest body, the undercut length is less than or equal to the axial depth of the undercut groove of the connector body, and the undercut limit portion is close to the end of the connector body away from the armrest body relative to the limit protrusion.

2. The seat assembly according to claim 1, characterized in that, When the first end of the rotating shaft is not inserted into the connecting member body, the free end of the undercut extension portion is bent and extended into the connecting member body relative to the other end of the undercut extension portion, and a part of the undercut limiting portion is radially located in the connecting member body; and / or When the first end of the rotating shaft is not inserted into the connecting member body, the undercut limiting portion radially protrudes out of the connecting member body and is snapped onto a side of the armrest fixing hole away from the armrest.

3. The seat assembly according to claim 1, characterized in that, The first end of the rotating shaft also includes a self-locking portion, which is away from the second end of the rotating shaft relative to the limiting groove. The self-locking portion protrudes radially outward relative to the limiting groove, and the maximum diameter of the self-locking portion is larger than the minimum radial dimension of the undercut when the first end of the rotating shaft is not inserted into the first end of the rotating shaft. When the first end of the rotating shaft is inserted into the main body of the connecting member, the self-locking portion pushes the undercut radially outward.

4. The seat assembly according to claim 1, characterized in that, The limiting protrusion comprises a disassembly ear protruding from the connector body, and the disassembly ear is provided with a tool matching hole for matching with a disassembly tool.

5. The seat assembly according to claim 1, wherein The connecting member also includes a rotation limit member extending outward from the side wall of the connecting member body, and the outer shell also includes a rotation limit hole located outside the armrest fixing hole, and the rotation limit member is inserted into the rotation limit hole. The connecting member is fixed circumferentially relative to the seat, and the armrest shaft can rotate circumferentially relative to the connecting member.

6. The seat assembly according to claim 5, wherein The connecting member also includes a limiting protrusion which is movably arranged on the side wall of the connecting member body in the radial direction. When the first end of the rotating shaft is inserted into the connecting member body, the limiting protrusion radially limits the first end of the rotating shaft. The undercut, the limiting protrusion and the rotation limiting member are staggered in the circumferential direction of the connecting member body.

7. The seat assembly according to claim 1, wherein The connecting member also includes a first axial limit member arranged at one end of the connecting member body close to the armrest body, and the first axial limit member protrudes radially outward relative to the connecting member body. The armrest rotating shaft also includes a second axial limit member protruding outward from the outer wall of the armrest rotating shaft, and the first axial limit member is clamped between the second axial limit member and the armrest fixing hole.

8. A vehicle, characterized in that, The invention comprises a plurality of seat assemblies according to any one of claims 1 to 7.

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