Splicing mechanism for seat unit and seat unit

Abstract

The invention discloses a splicing mechanism for a seat unit and the seat unit. The splicing mechanism for the seat unit comprises a fixing frame, wherein the fixing frame comprises a first fixing frame and a second fixing frame which are adjacently arranged; the first splicing assembly comprises a first fat meat splicing piece and a second fat meat splicing piece which are arranged on the first fixing frame; the second splicing assembly comprises a first splicing groove and a second splicing groove which are formed in the second fixing frame, and the opening directions of the first splicing groove and the second splicing groove intersect. According to the splicing device, the opening direction of the first splicing groove intersects with the opening direction of the second splicing groove, so that during splicing, the first splicing piece can be aligned with the first splicing groove firstly, then the second fixing frame is rotated, the first splicing piece is driven to be matched with the first splicing groove, and the second splicing piece is driven to be matched with the second splicing groove; therefore, mutual connection of the first fixing frame and the second fixing frame is rapidly completed, alignment operation in the splicing process is optimized, the workload is effectively reduced, and splicing work between two seat frames by a single person is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of furniture, and in particular to a splicing mechanism for a seat unit and a seat unit. Background Art

[0002] As people's requirements for quality of life increase, the functions of seats are no longer limited to comfort, but also need to meet the application requirements of diverse scenarios. For this reason, seats that can be expanded according to actual scenarios have appeared on the market. However, the existing technology has obvious shortcomings in achieving seat expansion: the expansion operation usually requires at least two people to work together. The operator must lift the expansion component completely and accurately align the connectors in multiple different positions at the same time before it can be spliced ​​into the main seat. This process is not only labor-intensive and complex to operate, but also heavily dependent on the cooperation of multiple people, resulting in a single person being unable to complete the expansion task independently, greatly limiting the convenience and efficiency of use. Summary of the invention

[0003] In order to overcome at least one of the defects described in the above-mentioned prior art, the present application provides a splicing mechanism for a seat unit and a seat unit, which can optimize the alignment operation during the splicing process, effectively reduce the workload, and facilitate a single person to perform the splicing work between two seat frames.

[0004] According to an embodiment of the present application, a splicing mechanism for a seat unit includes: a fixed frame, including a first fixed frame and a second fixed frame, the first fixed frame is arranged adjacent to the second fixed frame; a first splicing assembly, including a first splicing piece and a second splicing piece, the first splicing piece and the second splicing piece are arranged on the first fixed frame; a second splicing assembly, including a first splicing groove and a second splicing groove arranged in the second fixed frame, the opening direction of the first splicing groove and the opening direction of the second splicing groove are arranged to intersect, and after the first splicing piece is aligned with the first splicing groove, the rotation of the second fixed frame will drive the first splicing piece to cooperate and connect with the first splicing groove and the second splicing piece to cooperate and connect with the second splicing groove.

[0005] In the splicing mechanism for the seat unit, the opening direction of the first splicing groove and the opening direction of the second splicing groove are arranged to intersect each other, so that when splicing the two seat frames, the first splicing piece can be first aligned with the first splicing groove, and then the second fixed frame can be rotated, thereby driving the first splicing piece to cooperate and connect with the first splicing groove and the second splicing piece to cooperate and connect with the second splicing groove, thereby quickly completing the connection between the first fixed frame and the second fixed frame, optimizing the alignment operation during the splicing process, effectively reducing the workload, and facilitating a single person to perform the splicing work between the two seat frames.

[0006] According to some embodiments of the present application, the first fixed frame includes a first longitudinal beam extending in the front-to-back direction and a first vertical beam extending in the height direction, the first vertical beam is arranged at the rear end of the first longitudinal beam, the first splicing piece is fixedly connected to the first vertical beam, and the second splicing piece is fixedly connected to the first longitudinal beam.

[0007] According to some embodiments of the present application, the second fixed frame includes a second longitudinal beam extending in the front-to-back direction and a second vertical beam extending in the height direction, the second vertical beam is arranged at the rear end of the second longitudinal beam, the first splicing groove is arranged on the second vertical beam, and the second splicing groove is arranged on the second longitudinal beam.

[0008] According to some embodiments of the present application, the second splicing assembly also includes a first connecting plate, which is fixedly connected to the second vertical beam, and a third snap-fit ​​portion is provided on a side of the first connecting plate close to the first splicing piece, and the third snap-fit ​​portion is provided with the first splicing groove, and the opening direction of the first splicing groove is parallel to the front-to-back direction.

[0009] According to some embodiments of the present application, the second splicing assembly also includes a second connecting plate, which is fixedly connected to the second longitudinal beam, and a fourth snap-fit ​​portion is provided on one side of the second connecting plate close to the second splicing piece, and the fourth snap-fit ​​portion is provided with the second splicing groove, and the opening direction of the second splicing groove is parallel to the height direction.

[0010] According to some embodiments of the present application, the first splicing piece includes a first connecting portion and a first snap-on portion; the first connecting portion is fixedly connected to the first fixing frame; the first snap-on portion extends along the front-to-back direction and is arranged on the front side of the first connecting portion for cooperating and connecting with the first splicing groove.

[0011] According to some embodiments of the present application, the second splicing piece includes a second connecting portion and a second snap-fit ​​portion; the second connecting portion is fixedly connected to the first fixing frame; the second snap-fit ​​portion extends along the height direction and is arranged on the upper side of the second connecting portion for cooperating and connecting with the second splicing groove.

[0012] According to some embodiments of the present application, a support member is further included, and the support member is arranged at the lower end of the first fixing frame and / or the second fixing frame.

[0013] Based on the same inventive concept, the present application also proposes a seat unit, comprising at least two seat frames and the splicing mechanism for the seat unit as described above, wherein the splicing mechanism is arranged between the two seat frames, wherein: the first fixed frame is fixedly connected to one of the seat frames on the side facing away from the second fixed frame; the second fixed frame is fixedly connected to the other seat frame on the side facing away from the first fixed frame.

[0014] According to some embodiments of the present application, at least one of the seat frames is provided with an extension mechanism, and the extension mechanism can be transformed between a sitting position and a lying position.

[0015] In summary, the splicing mechanism for the seat unit provided by the present application has the following technical effects:

[0016] The opening direction of the first splicing groove and the opening direction of the second splicing groove are arranged to intersect each other, so that when splicing the two sitting frames, the first splicing piece can be first aligned with the first splicing groove, and then the second fixed frame can be rotated, so as to drive the first splicing piece to cooperate and connect with the first splicing groove and the second splicing piece to cooperate and connect with the second splicing groove, thereby quickly completing the connection between the first fixed frame and the second fixed frame, optimizing the alignment operation during the splicing process, effectively reducing the workload, and facilitating a single person to perform the splicing work between the two sitting frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a seat unit according to an embodiment of the present application;

[0018] Figure 2 It is a structural schematic diagram of a splicing mechanism for a seat unit according to an embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the structure of the first fixing frame of an embodiment of the present application;

[0020] Figure 4 It is a schematic structural diagram of the second fixing frame of the embodiment of the present application.

[0021] The meanings of the reference numerals are as follows:

[0022] 1. Fixed frame; 11. First fixed frame; 111. First longitudinal beam; 112. First vertical beam; 12. Second fixed frame; 121. Second longitudinal beam; 122. Second vertical beam; 2. First splicing assembly; 21. First splicing piece; 211. First connecting part; 212. First buckle part; 22. Second splicing piece; 221. Second connecting part; 222. Second buckle part; 3. Second splicing assembly; 31. First splicing groove; 311. First connecting plate; 312. Third buckle part; 32. Second splicing groove; 321. Second connecting plate; 322. Fourth buckle part; 4. Support member; 5. Seat frame; 6. Extension mechanism. DETAILED DESCRIPTION

[0023] For better understanding and implementation, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0024] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] See also Figure 1 and Figure 2 The present application discloses a seat unit, in particular a seat unit with two or more seats. In the present application, the seat unit includes at least one splicing mechanism for the seat unit. Preferably, the splicing mechanism for the seat unit is arranged between two adjacent seats, and is used to drive the two adjacent seats to be connected in parallel with each other to achieve the expansion of the seat unit. Optionally, the splicing mechanism is connected to one or more of the seat frame 5, seat cushion, armrest and extension mechanism 6 of the seat. Preferably, the seat unit includes at least two seat frames 5, and the splicing mechanism is arranged between the two seat frames 5, so that the stability of the seat unit after expansion can be improved by fixed connection between the splicing mechanism and the seat frame 5; optionally, the splicing mechanism includes a first fixed frame 11 and a second fixed frame 12 arranged adjacent to each other, and preferably, the first fixed frame 11 of the splicing mechanism is fixedly connected to one of the seat frames 5 on a side facing away from the second fixed frame 12; the second fixed frame 12 of the splicing mechanism is fixedly connected to the other seat frame 5 on a side facing away from the first fixed frame 11, so that the splicing of two adjacent seat frames 5 can be achieved through the connection between the first fixed frame 11 and the second fixed frame 12.

[0027] Optionally, the left and right sides of the seat frame 5 are respectively provided with a first fixed frame 11 and a second fixed frame 12, so that the right side of the seat frame 5 can be spliced ​​with the first fixed frame 11 on the outside of the main seat through the second fixed frame 12 to achieve the expansion of the seat unit. When the seat unit is expanded again, the first fixed frame 11 on the left side of the seat frame 5 is spliced ​​with the second fixed frame 12 of the expansion component to achieve the expansion of the seat unit again. When the seat is further expanded, the above steps are repeated. In this way, the user can expand the seat unit by himself according to the needs of the actual scene. Optionally, the seat frame 5 includes an ordinary seat frame 5, that is, the seat frame 5 does not have the function of switching between the sitting position and the lying position; optionally, the seat frame 5 includes a deformable seat frame 5, that is, the seat frame 5 has the function of switching between the sitting position and the lying position. Preferably, the seat frame 5 is provided with an extension mechanism 6, and the extension mechanism 6 can switch between the sitting position and the lying position. Optionally, the extension mechanism 6 includes the extension mechanism 6 also including a linear electric actuator, a seat assembly, a backrest assembly and a leg assembly. The backrest assembly can be pivotally connected to the rear end of the seat assembly, and the leg assembly can be pivotally connected to the front end of the seat assembly. When switching between the sitting position and the lying position, the linear electric actuator can drive the leg assembly to extend forward, while driving the seat assembly to move forward and driving the backrest assembly to move. The innovation of the present application does not lie in the specific structure of the extension mechanism 6, which will not be listed here one by one. Optionally, the seat frame 5 includes a deformable seat frame 5 and an ordinary seat frame 5, see Figure 1 That is, at least one of the seat frames 5 is provided with an extension mechanism 6, and the extension mechanism 6 can be transformed between a sitting position and a lying position. In this way, the deformable seat frame 5 and the ordinary seat frame 5 are spliced ​​together through the splicing mechanism to achieve diversified expansion of the seat unit.

[0028] See also Figure 2, the present application also discloses a splicing mechanism for a seat unit. The splicing mechanism for a seat unit includes a fixing frame 1, a first splicing assembly 2 and a second splicing assembly 3. Preferably, the fixing frame 1 includes a first fixing frame 11 and a second fixing frame 12, the first fixing frame 11 and the second fixing frame 12 are arranged adjacent to each other, the first splicing assembly 2 includes a first splicing piece 21 and a second splicing piece 22, the first splicing piece 21 and the second splicing piece 22 are arranged on the first fixing frame 11; the second splicing assembly 3 includes a first splicing groove 31 and a second splicing groove 32 arranged on the second fixing frame 12, the opening direction of the first splicing groove 31 and the opening direction of the second splicing groove 32 are arranged to intersect; and after the first splicing piece 21 is aligned with the first splicing groove 31, the rotation of the second fixing frame 12 will drive the first splicing piece 21 to be matched and connected with the first splicing groove 31 and the second splicing piece 22 to be matched and connected with the second splicing groove 32. In this embodiment, the opening direction of the first splicing groove 31 and the opening direction of the second splicing groove 32 are arranged to intersect each other, so that when the user splices the two sitting frames 5, he can first align the first splicing piece 21 with the first splicing groove 31, and then rotate the second fixed frame 12 to drive the first splicing piece 21 to cooperate and connect with the first splicing groove 31 and the second splicing piece 22 to cooperate and connect with the second splicing groove 32, so as to quickly complete the connection between the first fixed frame 11 and the second fixed frame 12, thereby optimizing the alignment operation during the splicing process, effectively reducing the workload, and facilitating a single person to perform the splicing work between the two sitting frames 5.

[0029] See also Figure 2 and Figure 3In some embodiments, the first fixing frame 11 includes a first longitudinal beam 111 extending in the front-to-back direction and a first vertical beam 112 extending in the height direction, the first vertical beam 112 is arranged at the rear end of the first longitudinal beam 111, the first splicing piece 21 is fixedly connected to the first vertical beam 112, and the second splicing piece 22 is fixedly connected to the first longitudinal beam 111. Optionally, the first vertical beam 112 is fixedly connected to the rear end of the first longitudinal beam 111; optionally, the first longitudinal beam 111 and the first vertical beam 112 are integrally formed; in this embodiment, the fixed connection can be a connection method such as bolt connection, riveting or welding; preferably, the first vertical beam 112 extending along the height direction and the second fixed frame 12 are driven to lock with each other by the cooperation connection of the first splicing piece 21 and the first splicing groove 31, and the first vertical beam 112 extending along the front-back direction and the second fixed frame 12 are driven to lock with each other by the cooperation connection of the second splicing piece 22 and the second splicing groove 32, so that the first fixed frame 11 and the second fixed frame 12 are interlocked in multiple directions, thereby effectively improving the stability of the connection between the first fixed frame 11 and the second fixed frame 12, and then optimizing the stability of the two seat frames 5 after splicing, so that users can get a better use experience.

[0030] See also Figure 2 and Figure 4 In some embodiments, the second fixed frame 12 includes a second longitudinal beam 121 extending in the front-to-back direction and a second vertical beam 122 extending in the height direction, the second vertical beam 122 is arranged at the rear end of the second longitudinal beam 121, the first splicing groove 31 is arranged on the second vertical beam 122, and the second splicing groove 32 is arranged on the second longitudinal beam 121. Optionally, the rear end of the second longitudinal beam 121 is fixedly connected to the second vertical beam 122; optionally, the second longitudinal beam 121 and the second vertical beam 122 are integrally formed; preferably, the first splicing groove 31 on the second vertical beam 122 is matched with the first splicing piece 21 on the first vertical beam 112 to drive the first vertical beam 112 and the second vertical beam 122 extending in the front-to-back direction to be locked with each other, and the second splicing groove 32 of the second longitudinal beam 121 is matched with the second splicing piece 22 of the first longitudinal beam 111 to drive the first longitudinal beam 111 and the second longitudinal beam 121 extending in the height direction to be locked with each other, thereby achieving interlocking of the first fixing frame 11 and the second fixing frame 12 in multiple directions, effectively improving the stability of the connection between the first fixing frame 11 and the second fixing frame 12, and then optimizing the stability of the two seat frames 5 after splicing, so that users can get a better use experience.

[0031] See also Figure 2 , Figure 3 and Figure 4 In some embodiments, a support member 4 is further included, and the support member 4 is disposed at the lower end of the first fixed frame 11 and / or the second fixed frame 12. Optionally, the support member 4 is supported on the lower end of the first fixed frame 11 to improve the stability of the first fixed frame 11. Optionally, the support member 4 includes a plurality of pillars, and the plurality of pillars are arranged along the front-to-back direction, wherein the upper ends of the pillars are fixedly connected to the first longitudinal beam 111, and the lower ends of the pillars are in contact with the ground. In this way, the support member 4 can stably support the first longitudinal beam 111 on the ground through the plurality of pillars, so that the first longitudinal beam 111 has better stability, and is convenient for connection to the first longitudinal beam 111 and alignment of the first splicing piece 21 with the first splicing groove 31. Optionally, the support member 4 is supported on the lower end of the second fixed frame 12 to improve the stability of the second fixed frame 12. Optionally, the upper end of the support member 4 is fixedly connected to the second longitudinal beam 121, and the lower end of the support member 4 is abutted against the ground. In this way, the second support member 4 can stably support the second longitudinal beam 121 on the ground, so that the second longitudinal beam 121 has better stability and is convenient for connection to the second longitudinal beam 121 and alignment of the first splicing groove 31 with the first splicing member 21. Optionally, the support member 4 includes a plurality of first pillars and a plurality of second pillars, wherein the plurality of first pillars are distributed at the lower end of the first fixed frame 11 for supporting the first fixed frame 11, and the plurality of second pillars are distributed at the lower end of the second fixed frame 12 for supporting the second fixed frame 12, that is, the first fixed frame 11 and the second fixed frame 12 are both supported by corresponding pillars, which can effectively improve the overall stability of the splicing mechanism, and at the same time can react to the seat frame 5 to provide reliable support to the seat frame 5, and at the same time optimize the stability of multiple seat frames 5 after splicing, reduce the occurrence of shaking, and improve the stability of the seat unit after expansion.

[0032] See also Figure 2 and Figure 4In some embodiments, the second splicing assembly 3 further includes a first connecting plate 311, the first connecting plate 311 is fixedly connected to the second vertical beam 122, a third buckle portion 312 is provided on one side of the first connecting plate 311 close to the first splicing piece 21, the third buckle portion 312 is provided with the first splicing groove 31, and the opening direction of the first splicing groove 31 is parallel to the front-back direction. Optionally, the first connecting plate 311 is extended along the height direction to increase the connection area between the first connecting plate 311 and the second vertical beam 122, ensuring that the second splicing piece 22 and the second vertical beam 122 form a reliable connection; Optionally, the outer side of the first connecting plate 311 extends toward the direction of the first splicing piece 21 to form the third buckle portion 312 having the first splicing groove 31. Optionally, the first splicing groove 31 penetrates the third snap-on portion 312 along the front-to-back direction, so that the opening direction of the first splicing groove 31 is parallel to the front-to-back direction; Optionally, the first connecting plate 311 and the third snap-on portion 312 are integrally formed to improve the overall strength and reduce the number of parts and the workload of assembly. Preferably, the opening direction of the first splicing groove 31 and the opening direction of the second splicing groove 32 are intersecting, so that when the user splices the two seat frames 5, the first splicing groove 31 on the third snap-on portion 312 can be aligned with the first splicing piece 21, and then the second fixed frame 12 can be rotated to drive the first splicing piece 21 to be inserted into the first splicing groove 31 and the second splicing piece 22 to be connected with the second splicing groove 32, so as to realize the mutual connection between the first fixed frame 11 and the second fixed frame 12.

[0033] See also Figure 2 and Figure 4In some embodiments, the second splicing assembly 3 further includes a second connecting plate 321, the second connecting plate 321 is fixedly connected to the second longitudinal beam 121, a fourth buckle portion 322 is provided on a side of the second connecting plate 321 close to the second splicing piece 22, the fourth buckle portion 322 is provided with the second splicing groove 32, and the opening direction of the second splicing groove 32 is parallel to the height direction. Optionally, the second connecting plate 321 is extended along the front-to-back direction to increase the connection area between the second connecting plate 321 and the second longitudinal beam 121, ensuring that the second splicing piece 22 and the second longitudinal beam 121 form a reliable connection; Optionally, the outer side of the second connecting plate 321 extends toward the direction of the second splicing piece 22 to form the fourth buckle portion 322 having the second splicing groove 32. Optionally, the second splicing groove 32 penetrates the fourth snap portion 322 along the height direction, so that the opening direction of the second splicing groove 32 is parallel to the height direction; Optionally, the second connecting plate 321 and the fourth snap portion 322 are integrally formed to improve the overall strength and reduce the number of parts and the workload of assembly. Preferably, the opening direction of the first splicing groove 31 and the opening direction of the second splicing groove 32 are intersecting, so that when the user splices the two seat frames 5, the first splicing piece 21 can be aligned with the opening of the first splicing groove 31, and then the second fixed frame 12 can be rotated to drive the first splicing piece 21 to be inserted into the first splicing groove 31 and the second splicing piece 22 to be inserted into the second splicing groove 32, so as to realize the mutual connection between the first fixed frame 11 and the second fixed frame 12.

[0034] See also Figure 2 and Figure 3In some embodiments, the first splicing piece 21 includes a first connecting portion 211 and a first snap portion 212; the first connecting portion 211 is fixedly connected to the first fixing frame 11; the first snap portion 212 is extended along the front-to-back direction and arranged at the front side of the first connecting portion 211, and is used to cooperate with the first splicing groove 31. Optionally, the first connecting portion 211 is extended along the height direction to increase the connection area between the first connecting portion 211 and the first fixing frame 11, and ensure that the first splicing piece 21 and the first fixing frame 11 form a reliable connection; preferably, the first connecting portion 211 is fixedly connected to the first vertical beam 112; optionally, the first connecting portion 211 and the first snap portion 212 are integrally formed to improve the overall strength of the first splicing piece 21, while reducing the number of components and the workload of assembly. Preferably, the opening direction of the first splicing groove 31 and the opening direction of the second splicing groove 32 are arranged to intersect each other, so that when the user splices the two sitting frames 5, he can first align the first snap portion 212 with the first splicing groove 31, and then rotate the second fixed frame 12 to drive the first snap portion 212 to be inserted into the first splicing groove 31 and the second splicing piece 22 to be connected with the second splicing groove 32, thereby realizing the mutual connection between the first fixed frame 11 and the second fixed frame 12.

[0035] See also Figure 2 and Figure 3 In some embodiments, the second splicing piece 22 includes a second connecting portion 221 and a second snap-on portion 222; the second connecting portion 221 is fixedly connected to the first fixing frame 11; the second snap-on portion 222 is extended along the height direction and arranged on the upper side of the second connecting portion 221, and is used to cooperate with the second splicing groove 32 for connection. Optionally, the second connecting portion 221 is extended along the front-back direction to increase the connection area between the second connecting portion 221 and the first fixing frame 11, and ensure that the second splicing piece 22 forms a reliable connection with the first fixing frame 11; preferably, the second connecting portion 221 is fixedly connected to the first longitudinal beam 111; optionally, the second connecting portion 221 and the second snap-on portion 222 are integrally formed to improve the overall strength of the second splicing piece 22, while reducing the number of components and the workload of assembly. Preferably, the opening direction of the first splicing groove 31 and the opening direction of the second splicing groove 32 are arranged to intersect each other, so that when the user splices the two sitting frames 5, he can first align the first snap portion 212 with the first splicing groove 31, and then rotate the second fixed frame 12 to drive the first snap portion 212 to be inserted into the first splicing groove 31 and the second snap portion 222 to be inserted into the second splicing groove 32, thereby realizing the mutual connection between the first fixed frame 11 and the second fixed frame 12.

[0036] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments, when the seat unit is expanded, the seat frame 5 of the original seat is placed in a predetermined position, and then the side of the seat frame 5 of the expanded part having the second fixed frame 12 is opposite to the side of the seat frame 5 of the original seat having the first fixed frame 11, and the seat frame 5 of the expanded part drives the second fixed frame 12 to move synchronously, so as to align the first splicing groove 31 with the first buckle portion 212. Specifically, the seat frame 5 of the expanded part and the second fixed frame 12 are moved synchronously, and the front ends of the seat frame 5 of the expanded part and the second fixed frame 12 are rotated upward by a certain amplitude, so as to align the first splicing groove 31 with the first buckle portion 212. 12. Since the opening direction of the first splicing groove 31 and the opening direction of the second splicing groove 32 are arranged to intersect, the front ends of the seat frame 5 of the extended part and the second fixed frame 12 can be driven to rotate downward at this time, so that the first buckle portion 212 is inserted into the first splicing groove 31 and the second buckle portion 222 is inserted into the second splicing groove 32, thereby realizing the mutual connection between the first fixed frame 11 and the second fixed frame 12, that is, the seat frame 5A of the original seat and the seat frame 5 of the extended part are spliced ​​together, which optimizes the alignment operation during the splicing process, effectively reduces the workload, and facilitates a single person to perform the splicing work between the two seat frames 5.

[0037] The technical means disclosed in the present application are not limited to the technical means disclosed in the above-mentioned implementation methods, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also regarded as the protection scope of this application.

Claims

1. A splicing mechanism for a seat unit, characterized in that: include: A fixing frame (1) comprising a first fixing frame (11) and a second fixing frame (12), wherein the first fixing frame (11) and the second fixing frame (12) are arranged adjacent to each other; A first splicing assembly (2) comprises a first splicing piece (21) and a second splicing piece (22), wherein the first splicing piece (21) and the second splicing piece (22) are arranged on the first fixing frame (11); The second splicing assembly (3) comprises a first splicing groove (31) and a second splicing groove (32) arranged on the second fixing frame (12); the opening direction of the first splicing groove (31) and the opening direction of the second splicing groove (32) are arranged to intersect each other, and after the first splicing piece (21) is aligned with the first splicing groove (31), the rotation of the second fixing frame (12) drives the first splicing piece (21) to be matched and connected with the first splicing groove (31) and the second splicing piece (22) to be matched and connected with the second splicing groove (32).

2. The splicing mechanism for a seat unit according to claim 1, characterized in that: The first fixing frame (11) comprises a first longitudinal beam (111) extending in a front-to-rear direction and a first vertical beam (112) extending in a height direction, the first vertical beam (112) being arranged at a rear end of the first longitudinal beam (111), the first assembling piece (21) being fixedly connected to the first vertical beam (112), and the second assembling piece (22) being fixedly connected to the first longitudinal beam (111).

3. The splicing mechanism for a seat unit according to claim 2, characterized in that: The second fixing frame (12) comprises a second longitudinal beam (121) extending in the front-rear direction and a second vertical beam (122) extending in the height direction, the second vertical beam (122) being arranged at the rear end of the second longitudinal beam (121), the first splicing groove (31) being arranged on the second vertical beam (122), and the second splicing groove (32) being arranged on the second longitudinal beam (121).

4. The splicing mechanism for a seat unit according to claim 3, characterized in that: The second splicing assembly (3) further comprises a first connecting plate (311), the first connecting plate (311) being fixedly connected to the second vertical beam (122), a third buckle portion (312) being provided on a side of the first connecting plate (311) close to the first splicing piece (21), the third buckle portion (312) being provided with the first splicing groove (31), and an opening direction of the first splicing groove (31) being parallel to the front-rear direction.

5. The splicing mechanism for a seat unit according to claim 4, characterized in that: The second splicing assembly (3) further comprises a second connecting plate (321), the second connecting plate (321) being fixedly connected to the second longitudinal beam (121), a fourth buckle portion (322) being provided on a side of the second connecting plate (321) close to the second splicing piece (22), the fourth buckle portion (322) being provided with the second splicing groove (32), and the opening direction of the second splicing groove (32) being parallel to the height direction.

6. The splicing mechanism for a seat unit according to any one of claims 1 to 5, characterized in that: The first splicing piece (21) comprises a first connecting portion (211) and a first buckle portion (212); The first connecting portion (211) is fixedly connected to the first fixing frame (11); The first buckle portion (212) is extended along the front-to-back direction and is arranged on the front side of the first connecting portion (211), and is used for being matched and connected with the first splicing groove (31).

7. The splicing mechanism for a seat unit according to claim 6, characterized in that: The second assembling piece (22) comprises a second connecting portion (221) and a second buckling portion (222); The second connecting portion (221) is fixedly connected to the first fixing frame (11); The second buckle portion (222) is extended along the height direction and arranged on the upper side of the second connecting portion (221), and is used for being matched and connected with the second splicing groove (32).

8. The splicing mechanism for a seat unit according to claim 1, characterized in that: It also comprises a support member (4), wherein the support member (4) is arranged at the lower end of the first fixing frame (11) and / or the second fixing frame (12).

9. A seat unit, characterized in that: The invention comprises at least two seat frames (5) and a splicing mechanism for a seat unit according to any one of claims 1 to 8, wherein the splicing mechanism is arranged between the two seat frames (5), wherein: A side of the first fixing frame (11) facing away from the second fixing frame (12) is fixedly connected to one of the seat frames (5); The side of the second fixing frame (12) facing away from the first fixing frame (11) is fixedly connected to the other seat frame (5).

10. The seating unit according to claim 9, wherein: At least one of the seat frames (5) is provided with an extension mechanism (6), and the extension mechanism (6) can be switched between a sitting position and a lying position.

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