Backrest mounting structure

Abstract

The utility model relates to the technical field of chairs, and discloses a backrest mounting structure which comprises a swing frame capable of swinging back and forth, a backup plate arranged behind the swing frame, and a plug-in module arranged on the front end face of the backup plate, the swing frame is H-shaped and comprises two vertical rods and a transverse connecting rod, the number of the inserting holes is the same as that of the vertical rods, the inserting holes are in one-to-one correspondence with the vertical rods, the inserting holes extend in the vertical direction, and the vertical rods are inserted into the corresponding inserting holes from bottom to top. According to the backrest installation structure, after the inserting modules and the backrest are connected through the screws, the inserting holes of the inserting modules are aligned with the vertical rods, the vertical rods are inserted into the inserting holes, and therefore the inserting modules and the inserting rods are rapidly combined, when the inserting modules abut against the transverse connecting rods, inserting installation is in place, and backrest installation can be rapidly completed without auxiliary installation of tools; and the assembling efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of chairs, in particular to a backrest installation structure. Background Art

[0002] In order to improve people's riding experience and comfort, chairs with backrests that can rock back and forth are widely used in places such as theaters and cinemas.

[0003] In order to optimize and improve the backrest swing structure, the backrest needs to be installed on a swing frame that can swing forward and backward, and the swing frame limits its swing amplitude through an elastic reset mechanism. In order to save transportation space, the backrest and the swing frame need to be disassembled into independent parts and cannot be pre-assembled in the factory. Moreover, during on-site installation, chairs are often assembled in large quantities, so it is urgent to develop a backrest installation structure that can improve the efficiency of backrest installation.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a backrest installation structure with high assembly efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A backrest mounting structure includes a swing frame that can swing forward and backward, a backrest plate arranged at the rear of the swing frame, and a plug-in module arranged on the front end surface of the backrest plate. The swing frame is H-shaped and includes two vertical rods and a horizontal connecting rod. The plug-in module is provided with sockets that are the same in number as the vertical rods and correspond one to one. The sockets extend vertically, and the vertical rods are inserted into the corresponding sockets from bottom to top.

[0008] As a further improvement of the above technical solution, the swing frame is rotatably connected to the support, a clamping block is provided at the bottom of the plug-in module, and the swing frame also includes a push plate arranged on the back of the vertical rod and the horizontal connecting rod, and a buckle interface is provided on the push plate to be buckled with the clamping block.

[0009] As a further improvement of the above technical solution, the plug-in module includes a square frame, a plug-in tube arranged in the square frame, and a rib plate for connecting the square frame and the plug-in tube, and the plug-in hole is arranged in the plug-in tube.

[0010] As a further improvement of the above technical solution, the plug-in module also includes positioning blocks arranged at the corners and center of the square frame, the positioning blocks are fixed by rib plates, the positioning blocks are provided with sinking holes, and the support plate is provided with threaded holes corresponding to the sinking holes.

[0011] As a further improvement of the above technical solution, the vertical rod is a square tube, and the insertion hole of the insertion tube is a square hole.

[0012] As a further improvement of the above technical solution, a soft backrest bag that wraps the backrest and the plug-in module is provided on the backrest.

[0013] Beneficial effects of the present invention: After the backrest installation structure provided by the present invention connects the plug-in module and the backrest with screws, the plug-in hole of the plug-in module is aligned with the vertical rod, and the vertical rod is inserted into the hole, so that the plug-in module and the plug-in rod are quickly combined. When the plug-in module is pressed against the horizontal connecting rod, it indicates that the plug-in is in place, and the backrest installation can be quickly completed without the need for tool-assisted installation, and the assembly efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an assembly diagram of the backrest mounting structure provided by the utility model.

[0015] Figure 2 This is a schematic diagram of the backrest installation structure provided by the utility model before the plug-in module is plugged into the swing frame.

[0016] Figure 3 Schematic diagram of a seat formed by installing a backrest soft cover on a backrest and a plug-in module.

[0017] Description of the main component symbols: 1-back plate, 2-swing frame, 21-vertical rod, 22-horizontal connecting rod, 23-push plate, 24-buckle interface, 3-plug-in module, 31-jack, 32-block, 33-frame, 34-insertion tube, 35-rib plate, 36-positioning block, 37-sinking hole, 4-support, 5-backrest soft bag, 6-elastic reset mechanism. DETAILED DESCRIPTION

[0018] The utility model provides a backrest mounting structure. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0019] When the seat is currently installed, the support 4 is first installed on the top of the base frame, and then the swing frame 2 is swung and connected to the support 4, and then the elastic reset mechanism 6 is installed to limit the swing amplitude of the swing frame 2, and then the backrest installation process is carried out.

[0020] See also Figure 1 and Figure 2The utility model provides a backrest installation structure, including a swing frame 2 that can swing forward and backward, a backrest board 1 arranged at the rear of the swing frame 2, and a plug-in module 3 arranged on the front end surface of the backrest board 1. The swing frame 2 is H-shaped and includes two vertical rods 21 and a horizontal connecting rod 22. The plug-in module 3 is provided with plug holes 31 that are the same in number and one-to-one corresponding to the vertical rods 21. The plug holes 31 extend vertically, and the vertical rods 21 are inserted into the corresponding plug holes 31 from bottom to top.

[0021] When installing the backrest, the staff first takes out the backboard 1 and the plug-in module 3 from the packaging bag, and then fixes the plug-in module 3 on the backboard 1 by screws to form a whole. At this time, under the action of the elastic reset mechanism, the vertical rod 21 of the swing frame 2 is vertically upward, and then the plug-in hole 31 of the plug-in module 3 is aligned with the vertical rod 21, and the vertical rod 21 is inserted into the plug-in hole 31, so that the plug-in module 3 and the plug-in rod are quickly combined. When the plug-in module 3 presses against the horizontal connecting rod 22, it means that the plug-in is in place, and the backrest installation can be completed quickly, and no tools are needed to assist the installation, and the assembly efficiency is high. In fact, the backboard 1 has a large area, so it has a certain weight. Under the action of gravity, after the plug-in module 3 is combined with the swing frame 2, the plug-in module 3 is difficult to separate from the swing frame 2.

[0022] In order to further improve the reliability of the connection between the plug-in module 3 and the swing frame 2, the swing frame 2 is rotatably connected to the support 4, a clamping block 32 is provided at the bottom of the plug-in module 3, and the swing frame 2 also includes a push plate 23 arranged on the back of the vertical rod 21 and the horizontal connecting rod 22. The vertical rod 21, the horizontal connecting rod 22 and the push plate 23 are integrally formed by welding, and a buckle interface 24 is provided on the push plate 23 to be buckled with the clamping block 32. When the clamping block 32 is buckled with the buckle interface 24 on the push plate 23, the plug-in module 3 is restricted from moving upward and disengaging from the plug-in module 3 at will.

[0023] In this embodiment, the plug-in module 3 is injection molded, which is easy to manufacture and has good structural strength. The plug-in module 3 includes a square frame 33, a plug 34 arranged in the square frame 33, and a rib plate 35 for connecting the square frame 33 and the plug 34. The socket 31 is arranged in the plug 34.

[0024] Specifically, the plug-in module 3 further includes positioning blocks 36 disposed at the corners and the center of the frame 33, the positioning blocks 36 being fixed by the rib plate 35, the positioning blocks 36 being provided with sinking holes 37, and the support plate 1 being provided with threaded holes corresponding to the sinking holes 37. A locking screw is installed at each sinking hole 37, and the locking screw passes through the sinking hole 37 and is screwed into the threaded hole to achieve the fixing of the plug-in module 3.

[0025] In this embodiment, the vertical rod 21 and the horizontal connecting rod 22 are both square tubes, which are light in weight and convenient for positioning and welding into the swing frame 2. Accordingly, the insertion hole 31 of the inserting tube 34 is a square hole. Of course, the vertical rod 21 and the horizontal connecting rod 22 can also be set as round tubes.

[0026] See Figure 3 As shown, in order to improve the riding comfort of the user, the backrest 1 is provided with a backrest soft bag 5 that wraps the backrest 1 and the plug-in module 3. The backrest soft bag 5 is an outer layer of leather and a sponge structure arranged inside the outer layer of leather, and a fitting opening is opened at the bottom of the backrest soft bag 5.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A backrest mounting structure, characterized in that: It includes a swing frame that can swing back and forth, a backrest plate arranged at the rear of the swing frame, and a plug-in module arranged on the front end surface of the backrest plate. The swing frame is H-shaped and includes two vertical rods and a horizontal connecting rod. The plug-in module is provided with sockets that are the same in number as the vertical rods and correspond one to one. The sockets extend vertically, and the vertical rods are inserted into the corresponding sockets from bottom to top.

2. The backrest mounting structure according to claim 1, characterized in that: The swing frame is rotatably connected to the support, a clamping block is provided at the bottom of the plug-in module, and the swing frame also includes a push plate arranged on the back of the vertical rod and the horizontal connecting rod, and a buckle interface which is buckled and connected with the clamping block is provided on the push plate.

3. The backrest mounting structure according to claim 1, characterized in that: The plug-in module comprises a square frame, a plug-in pipe arranged in the square frame, and a rib plate used for connecting the square frame and the plug-in pipe, and the plug-in hole is arranged in the plug-in pipe.

4. The backrest mounting structure according to claim 3, characterized in that: The plug-in module also includes positioning blocks arranged at the corners and the center of the frame, the positioning blocks are fixed by rib plates, the positioning blocks are provided with sinking holes, and the support plate is provided with threaded holes corresponding to the sinking holes.

5. The backrest mounting structure according to claim 3, characterized in that: The vertical rod is a square tube, and the insertion hole of the insertion tube is a square hole.

6. The backrest mounting structure according to any one of claims 1 to 5, characterized in that: The backrest is sleeved with a soft backrest bag which wraps the backrest and the plug-in module.

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