Splicing mechanism for seat unit and seat unit

Abstract

The utility model 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, in particular to a splicing mechanism for a seat unit and the seat unit. BACKGROUND

[0002] With the improvement of people's requirements for the quality of life, the function of the seat is no longer limited to comfort, but also needs to meet the application requirements of diversified scenes. Therefore, there are seats on the market that can be expanded according to the actual scene. However, the existing technology has obvious deficiencies in realizing the expansion of the seat: the expansion operation usually needs at least two people to cooperate, the operator must completely lift the expansion component, and at the same time, accurately align the plug-in parts at multiple different positions, so as to splice it to the main seat. This process not only has heavy workload and complex operation, but also seriously depends on the cooperation of multiple people, which makes a single person unable to complete the expansion task independently, greatly limiting the convenience and efficiency of use. CONTENT OF THE UTILITY MODEL

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

[0004] According to the splicing mechanism for a seat unit of an embodiment of the present application, the splicing mechanism comprises: a fixed frame comprising a first fixed frame and a second fixed frame, the first fixed frame being arranged adjacent to the second fixed frame; a first splicing assembly comprising a first splicing part and a second splicing part, the first splicing part and the second splicing part being arranged on the first fixed frame; and a second splicing assembly comprising a first splicing slot and a second splicing slot arranged on the second fixed frame, the opening direction of the first splicing slot being arranged intersecting the opening direction of the second splicing slot, and after the first splicing part is aligned with the first splicing slot, the rotation of the second fixed frame will drive the first splicing part to be connected with the first splicing slot and the second splicing part to be connected with the second splicing slot.

[0005] In the splicing mechanism for a seat unit, by arranging the opening direction of the first splicing slot intersecting the opening direction of the second splicing slot, when splicing two seat frames, the first splicing part can be aligned with the first splicing slot first, and then the second fixed frame is rotated, thereby driving the first splicing part to be connected with the first splicing slot and the second splicing part to be connected with the second splicing slot, and then quickly completing the mutual connection of the first fixed frame and the second fixed frame, optimizing the alignment operation in the splicing process, effectively reducing the workload, and facilitating a single person to splice two seat frames.

[0006] According to some embodiments of the present application, the first fixed frame comprises a first longitudinal beam extending in the front-rear 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 comprises a second longitudinal beam extending in the front-rear 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 further comprises a first connecting plate fixedly connected to the second vertical beam, and a third buckle part is arranged on one side of the first connecting plate close to the first splicing piece, the third buckle part is provided with the first splicing groove, and the opening direction of the first splicing groove is parallel to the front-rear direction.

[0009] According to some embodiments of the present application, the second splicing assembly further comprises a second connecting plate fixedly connected to the second longitudinal beam, and a fourth buckle part is arranged on one side of the second connecting plate close to the second splicing piece, the fourth buckle part 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 comprises a first connecting part and a first buckle part, the first connecting part is fixedly connected to the first fixed frame, and the first buckle part is arranged on the front side of the first connecting part in the front-rear direction and is used for cooperating with the first splicing groove.

[0011] According to some embodiments of the present application, the second splicing piece comprises a second connecting part and a second buckle part, the second connecting part is fixedly connected to the first fixed frame, and the second buckle part is arranged on the upper side of the second connecting part in the height direction and is used for cooperating with the second splicing groove.

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

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

[0014] According to some embodiments of the present application, at least one of the seat frames is provided with an extension mechanism capable of being 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] By intersecting the opening direction of the first splicing groove with the opening direction of the second splicing groove, the first splicing groove can be aligned with the first splicing piece first when splicing two seat frames, and then the second fixed frame is rotated to drive the first splicing piece and the first splicing groove to be connected and the second splicing piece and the second splicing groove to be connected, thereby quickly completing the mutual connection of the first fixed frame and the second fixed frame, optimizing the alignment operation in the splicing process, effectively reducing the workload, and facilitating single-person splicing work between two seat frames. BRIEF DESCRIPTION OF DRAWINGS

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

[0018] Figure 2 FIG. 1 is a structural schematic diagram of a seat unit according to an embodiment of the present application;

[0019] Figure 3 FIG. 1 is a structural schematic diagram of a seat unit according to an embodiment of the present application;

[0020] Figure 4 FIG. 1 is a structural schematic diagram of a seat unit according to an embodiment of the present application;

[0021] Wherein, the meaning of the reference signs is 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, supporting piece; 5, seat frame; 6, extension mechanism. DETAILED DESCRIPTION

[0023] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application.

[0024] In the description of the present application, it needs to be explained that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0026] Referring to Figure 1 and Figure 2 , the present application discloses a seat unit, especially a seat unit with double or multiple seats. In the present application, the seat unit comprises at least one splicing mechanism for the seat unit. Preferably, the splicing mechanism for the seat unit is arranged between two adjacent seats, for driving the two adjacent seats to be connected side by side, so as to realize the expansion of the seat unit. Optionally, the splicing mechanism is connected with one or more of the seat frame 5, the seat cushion, the armrest and the extension mechanism 6 of the seat. Preferably, the seat unit comprises at least two seat frames 5, and the splicing mechanism is arranged between the two seat frames 5, so that the splicing mechanism is fixedly connected with the seat frames 5, so as to improve the stability of the expanded seat unit. Optionally, the splicing mechanism comprises a first fixed frame 11 and a second fixed frame 12 arranged adjacent to each other, and preferably, one side of the first fixed frame 11 of the splicing mechanism away from the second fixed frame 12 is fixedly connected with one of the seat frames 5, and one side of the second fixed frame 12 of the splicing mechanism away from the first fixed frame 11 is fixedly connected with the other seat frame 5, so that the splicing of the two adjacent seat frames 5 can be realized 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 outside the main seat through the second fixed frame 12 to expand the seat unit, and 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 realize the expansion of the seat unit again, and when the seat is continuously expanded, the above steps are repeated, so that the user can expand the seat unit according to the actual scene requirements. Optionally, the seat frame 5 includes a common seat frame 5, that is, the seat frame 5 does not have the function of transforming 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 transforming between the sitting position and the lying position, preferably, the seat frame 5 is provided with an extension mechanism 6, the extension mechanism 6 can transform between the sitting position and the lying position, and the extension mechanism 6 includes a linear electric actuator, a seat assembly, a backrest assembly and a leg assembly. The backrest assembly is pivotally connected to the rear end of the seat assembly, and the leg assembly is pivotally connected to the front end of the seat assembly. When transforming between the sitting position and the lying position, the linear electric actuator can drive the leg assembly to extend forward, and at the same time drive the seat assembly to move forward and drive the backrest assembly to move. The innovation of the present application is not in the specific structure of the extension mechanism 6, which will not be listed one by one here. Optionally, the seat frame 5 includes a deformable seat frame 5 and a common seat frame 5, refer to Figure 1 , that is, at least one of the seat frames 5 is provided with an extension mechanism 6, the extension mechanism 6 can transform between the sitting position and the lying position, so that the deformable seat frame 5 and the common seat frame 5 are spliced through the splicing mechanism to realize the diversified expansion of the seat unit.

[0028] Refer to Figure 2In the present application, a splicing mechanism for a seat unit is also disclosed. The splicing mechanism for a seat unit comprises a fixing frame 1, a first splicing assembly 2 and a second splicing assembly 3. Preferably, the fixing frame 1 comprises a first fixing frame 11 and a second fixing frame 12, the first fixing frame 11 is arranged adjacent to the second fixing frame 12. The first splicing assembly 2 comprises 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 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 is arranged intersecting with the opening direction of the second splicing groove 32. 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 connected with the first splicing groove 31 and the second splicing piece 22 to be connected with the second splicing groove 32. In the present embodiment, by arranging the opening direction of the first splicing groove 31 intersecting with the opening direction of the second splicing groove 32, the user can first align the first splicing piece 21 with the first splicing groove 31, and then rotate the second fixing frame 12 to drive the first splicing piece 21 to be connected with the first splicing groove 31 and the second splicing piece 22 to be connected with the second splicing groove 32 when splicing two seat frames 5, so as to quickly complete the mutual connection of the first fixing frame 11 and the second fixing frame 12, thereby optimizing the alignment operation in the splicing process, effectively reducing the workload, and facilitating the splicing work between two seat frames 5 by a single person.

[0029] Referring to Figure 2 and Figure 3In some embodiments, the first fixed frame 11 comprises a first longitudinal beam 111 extending in the front-rear 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 mode such as bolt connection, riveting or welding; preferably, the first splicing piece 21 and the first splicing groove 31 are connected in cooperation to drive the first vertical beam 112 extending in the height direction and the second fixed frame 12 to be locked with each other, and the second splicing piece 22 and the second splicing groove 32 are connected in cooperation to drive the first vertical beam 112 extending and arranged in the front-rear direction and the second fixed frame 12 to be locked with each other, so as to realize mutual locking of the first fixed frame 11 and the second fixed frame 12 in multiple directions, effectively improve the stability of the connection between the first fixed frame 11 and the second fixed frame 12, and further optimize the stability after splicing of the two seat frames 5, so that the user can obtain better use experience.

[0030] Referring to Figure 2 and Figure 4 In some embodiments, the second fixed 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 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 with 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 and the first splicing piece 21 on the first vertical beam 112 are connected in cooperation to drive the first vertical beam 112 and the second vertical beam 122 extending and arranged in the front-rear direction to be locked with each other, and the second splicing groove 32 of the second longitudinal beam 121 and the second splicing piece 22 of the first longitudinal beam 111 are connected in cooperation to drive the first longitudinal beam 111 and the second longitudinal beam 121 extending and arranged in the height direction to be locked with each other, so as to realize mutual locking of the first fixed frame 11 and the second fixed frame 12 in multiple directions, effectively improve the stability of the connection between the first fixed frame 11 and the second fixed frame 12, and further optimize the stability after splicing of the two seat frames 5, so that the user can obtain better use experience.

[0031] Referring to Figure 2 , Figure 3 andFigure 4 In some embodiments, the support 4 is further included, which is arranged at the lower end of the first fixed frame 11 and / or the second fixed frame 12. Optionally, the support 4 is arranged at the lower end of the first fixed frame 11 to improve the stability of the first fixed frame 11. Optionally, the support 4 includes a plurality of first supports, which are arranged in the front-rear direction, wherein the upper end of each first support is fixedly connected with the first longitudinal beam 111, and the lower end of each first support abuts against the ground. In this way, the support 4 can stably support the first longitudinal beam 111 on the ground through the plurality of first supports, so that the first longitudinal beam 111 has better stability, and the first longitudinal beam 111 is convenient to connect with the first splicing member 21 and the first splicing groove 31. Optionally, the support 4 is arranged at 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 4 is fixedly connected with the second longitudinal beam 121, and the lower end of the support 4 abuts against the ground. In this way, the second support 4 can stably support the second longitudinal beam 121 on the ground, so that the second longitudinal beam 121 has better stability, and the second longitudinal beam 121 is convenient to connect with the first splicing groove 31 and the first splicing member 21. Optionally, the support 4 includes a plurality of first supports and a plurality of second supports, the plurality of first supports are arranged at the lower end of the first fixed frame 11 to support the first fixed frame 11, and the plurality of second supports are arranged at the lower end of the second fixed frame 12 to support the second fixed frame 12. That is, the first fixed frame 11 and the second fixed frame 12 are both supported by corresponding supports, which can effectively improve the stability of the splicing mechanism as a whole, and can also react on the seat frame 5 to provide reliable support for the seat frame 5, while optimizing the stability of the plurality of seat frames 5 after splicing, reducing the occurrence of shaking, and improving the stability of the seat unit after expansion.

[0032] Referring to Figure 2 and Figure 4In some embodiments, the second splicing component 3 further comprises a first connecting plate 311 fixedly connected to the second vertical beam 122, and the first connecting plate 311 is provided with a third buckle part 312 near one side of the first splicing piece 21, and the third buckle part 312 is provided with the first splicing slot 31, and the opening direction of the first splicing slot 31 is parallel to the front-back direction. Optionally, the first connecting plate 311 is provided in the height direction to increase the connecting area of the first connecting plate 311 and the second vertical beam 122, so as to ensure that the second splicing piece 22 and the second vertical beam 122 are reliably connected; optionally, the outer side of the first connecting plate 311 extends to the direction of the first splicing piece 21 to form the third buckle part 312 with the first splicing slot 31. Optionally, the first splicing slot 31 penetrates the third buckle part 312 in the front-back direction, so that the opening direction of the first splicing slot 31 is parallel to the front-back direction; optionally, the first connecting plate 311 and the third buckle part 312 are integrally formed to improve the overall strength, and at the same time, the number of parts and the assembly workload are reduced. Preferably, the opening direction of the first splicing slot 31 and the opening direction of the second splicing slot 32 are intersected, so that when splicing two seat frames 5, the user can first align the first splicing slot 31 on the third buckle part 312 with the first splicing piece 21, and then rotate the second fixed frame 12 to drive the first splicing piece 21 to be inserted into the first splicing slot 31 and the second splicing piece 22 to be connected with the second splicing slot 32, so as to realize the mutual connection of the first fixed frame 11 and the second fixed frame 12.

[0033] Referring to Figure 2 and Figure 4In some embodiments, the second splicing assembly 3 further comprises a second connecting plate 321 fixedly connected to the second longitudinal beam 121, and the second connecting plate 321 is provided with a fourth buckle part 322 near one side of the second splicing piece 22, and the fourth buckle part 322 is provided with the second splicing slot 32, and the opening direction of the second splicing slot 32 is parallel to the height direction. Optionally, the second connecting plate 321 is provided in the front-rear direction to increase the connecting area of the second connecting plate 321 and the second longitudinal beam 121, so as to ensure that the second splicing piece 22 and the second longitudinal beam 121 are reliably connected; optionally, the outer side of the second connecting plate 321 extends to the direction of the second splicing piece 22 to form the fourth buckle part 322 with the second splicing slot 32. Optionally, the second splicing slot 32 penetrates the fourth buckle part 322 in the height direction, so that the opening direction of the second splicing slot 32 is parallel to the height direction; optionally, the second connecting plate 321 and the fourth buckle part 322 are integrally formed to improve the overall strength, while reducing the number of parts and the assembly workload. Preferably, the opening direction of the first splicing slot 31 and the opening direction of the second splicing slot 32 are intersected to enable the user to first align the first splicing piece 21 and the opening of the first splicing slot 31 when splicing two seat frames 5, and then rotate the second fixed frame 12 to enable the first splicing piece 21 to be inserted into the first splicing slot 31 and the second splicing piece 22 to be inserted into the second splicing slot 32, so as to realize the mutual connection of the first fixed frame 11 and the second fixed frame 12.

[0034] Referring to Figure 2 and Figure 3In some embodiments, the first splicing piece 21 comprises a first connecting part 211 and a first buckling part 212; the first connecting part 211 is fixedly connected to the first fixed frame 11; the first buckling part 212 is arranged on the front side of the first connecting part 211 in the front-rear direction and is used for cooperating with the first splicing groove 31. Optionally, the first connecting part 211 is arranged in the height direction to increase the connecting area of the first connecting part 211 and the first fixed frame 11, so as to ensure that the first splicing piece 21 and the first fixed frame 11 form a reliable connection; preferably, the first connecting part 211 is fixedly connected to the first vertical beam 112; optionally, the first connecting part 211 and the first buckling part 212 are integrally formed to improve the strength of the first splicing piece 21 as a whole, while reducing the number of parts and the assembly workload. Preferably, the opening direction of the first splicing groove 31 and the opening direction of the second splicing groove 32 are arranged to intersect, so that when splicing two seat frames 5, the user can first align the first buckling part 212 with the first splicing groove 31, and then rotate the second fixed frame 12 to drive the first buckling part 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, so as to realize the mutual connection of the first fixed frame 11 and the second fixed frame 12.

[0035] Referring to Figure 2 and Figure 3 In some embodiments, the second splicing piece 22 comprises a second connecting part 221 and a second buckling part 222; the second connecting part 221 is fixedly connected to the first fixed frame 11; the second buckling part 222 is arranged on the upper side of the second connecting part 221 in the height direction and is used for cooperating with the second splicing groove 32. Optionally, the second connecting part 221 is arranged in the front-rear direction to increase the connecting area of the second connecting part 221 and the first fixed frame 11, so as to ensure that the second splicing piece 22 and the first fixed frame 11 form a reliable connection; preferably, the second connecting part 221 is fixedly connected to the first vertical beam 112; optionally, the second connecting part 221 and the second buckling part 222 are integrally formed to improve the strength of the second splicing piece 22 as a whole, while reducing the number of parts and the assembly workload. Preferably, the opening direction of the first splicing groove 31 and the opening direction of the second splicing groove 32 are arranged to intersect, so that when splicing two seat frames 5, the user can first align the first buckling part 212 with the first splicing groove 31, and then rotate the second fixed frame 12 to drive the first buckling part 212 to be inserted into the first splicing groove 31 and the second buckling part 222 to be inserted into the second splicing groove 32, so as to realize the mutual connection of the first fixed frame 11 and the second fixed frame 12.

[0036] Referring to 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 expansion 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. The second fixed frame 12 is moved synchronously by the seat frame 5 of the expansion part to drive the first splicing groove 31 and the first buckle part 212 to be aligned. Specifically, the seat frame 5 of the expansion part and the second fixed frame 12 are moved synchronously, and the front ends of the seat frame 5 of the expansion part and the second fixed frame 12 are turned upward by a certain amplitude to align the first splicing groove 31 with the first buckle part 212. Since the opening direction of the first splicing groove 31 is intersected with the opening direction of the second splicing groove 32, the front ends of the seat frame 5 of the expansion part and the second fixed frame 12 can be turned downward to insert the first buckle part 212 into the first splicing groove 31 and the second buckle part 222 into the second splicing groove 32, so as to realize the mutual connection of the first fixed frame 11 and the second fixed frame 12, that is, the splicing of the seat frame 5A of the original seat and the seat frame 5 of the expansion part. The alignment operation in the splicing process is optimized, the workload is effectively reduced, and the splicing work between the two seat frames 5 is facilitated by a single person.

[0037] The technical means disclosed in the application scheme is not limited to the technical means disclosed in the above embodiments, but also includes technical solutions composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the application, some improvements and refinements can be made, which are also considered within the protection scope of the application.

Claims

1. A splicing mechanism for a seat unit, characterized by, include: The fixing frame (1) includes 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; The first splicing component (2) includes a first splicing piece (21) and a second splicing piece (22), wherein the first splicing piece (21) and the second splicing piece (22) are disposed on the first fixed frame (11); The second splicing component (3) includes a first splicing groove (31) and a second splicing groove (32) disposed on the second fixed frame (12). The opening direction of the first splicing groove (31) intersects with the opening direction of the second splicing groove (32). After the first splicing component (21) is aligned with the first splicing groove (31), the rotation of the second fixed frame (12) will drive the first splicing component (21) to engage with the first splicing groove (31) and the second splicing component (22) to engage with the second splicing groove (32).

2. The splicing mechanism for a seat unit according to claim 1, characterized in that: The first fixed frame (11) includes a first longitudinal beam (111) extending in the front-back direction and a first vertical beam (112) extending in the height direction. The first vertical beam (112) is disposed 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).

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

4. The splicing mechanism for a seat unit according to claim 3, characterized in that: The second splicing component (3) also includes a first connecting plate (311), which is fixedly connected to the second vertical beam (122). The first connecting plate (311) has a third buckle (312) on the side near the first splicing component (21). The third buckle (312) has a first splicing groove (31), and the opening direction of the first splicing groove (31) is parallel to the front and back direction.

5. The splicing mechanism for a seat unit according to claim 4, characterized in that: The second splicing component (3) also includes a second connecting plate (321), which is fixedly connected to the second longitudinal beam (121). The second connecting plate (321) has a fourth buckle (322) on the side near the second splicing component (22). The fourth buckle (322) has a second splicing groove (32), and the opening direction of the second splicing groove (32) is parallel to the height direction.

6. The splicing mechanism for a seat unit according to any one of claims 1-5, characterized in that: The first splicing component (21) includes a first connecting part (211) and a first snap-fit ​​part (212); The first connecting part (211) is fixedly connected to the first fixing frame (11); The first buckle part (212) is arranged on the front side of the first connecting part (211) in the front-rear direction and is used for matched connection with the first splicing groove (31).

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

8. The splicing mechanism for a seat unit according to claim 1, characterized in that: A support (4) is further included, which is arranged at the lower end of the first fixed frame (11) and / or the second fixed frame (12).

9. A seating unit characterized by, At least two seat frames (5) and the splicing mechanism for a seat unit according to any one of claims 1-8 are included, and the splicing mechanism is arranged between the two seat frames (5), wherein: The side of the first fixed frame (11) away from the second fixed frame (12) is fixedly connected to one of the seat frames (5); The side of the second fixed frame (12) away from the first fixed frame (11) is fixedly connected to the other seat frame (5).

10. The seating unit of claim 9, wherein, At least one of the seat frames (5) is provided with an extension mechanism (6) capable of being transformed between a sitting position and a lying position.

Images