Face cover mounting structure of seat backrest

Abstract

The utility model relates to the technical field of seats, and discloses a surface sleeve mounting structure of a seat backrest, which comprises a backrest frame body, a sponge support body arranged on the front side of the backrest frame body, a surface sleeve sleeved on the sponge support body and the backrest frame body, and a back shell mounted on the back of the backrest frame body, the back face of the backrest frame body is provided with a plurality of first hooks adjacent to the edge of the back face, the face sleeve comprises a backrest part, a surrounding edge part integrally formed and connected with the edge of the backrest part and a plurality of outer positioning sheet bodies connected with the rear edge of the surrounding edge part, and first buckling holes matched with the corresponding first hooks are formed in the outer positioning sheet bodies. The outer positioning sheet body is located between the backrest frame body and the back shell body, and the back shell body can cover the outer positioning sheet body. According to the surface cover mounting structure of the seat backrest, the first hook is matched with the first buckle hole of the outer positioning sheet body, so that the surface cover on the backrest is more convenient to mount and dismount, and the surface cover on the backrest can be easily dismounted to be cleaned or replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a seat back cover installation structure. Background Art

[0002] Seats such as cinema chairs and auditorium chairs are equipped with backrests to provide support for the user's back, helping to maintain a correct sitting posture and reduce back fatigue. The backrests are generally equipped with covers to protect the internal filling from wear and tear and extend the service life of the seat. They can also provide a soft touch, increase the comfort of the seat, and make the audience feel more comfortable when watching movies or attending events for a long time.

[0003] However, the covers on the backrests of most cinema chairs and auditorium chairs are not removable or inconvenient to remove. After long-term use, the covers will accumulate dust and stains, and the color of the covers may even fade or become worn. It is necessary to regularly remove and clean the covers on the backrests, or replace them with new covers.

[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 seat back cover installation structure, which is intended to facilitate the removal and installation of the seat back cover.

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

[0007] A seat back cover installation structure includes a backrest frame, a sponge support body arranged on the front side of the backrest frame, a cover sleeved on the sponge support body and the backrest frame, and a back shell installed behind the backrest frame, the back side of the backrest frame is provided with a plurality of first hooks arranged adjacent to the back edge, the cover includes a backrest portion, a surrounding edge portion integrally connected to the edge of the backrest portion, and a plurality of outer positioning sheets connected to the rear edge of the surrounding edge portion, the outer positioning sheets are provided with first buckle holes matched with corresponding first hooks, the outer positioning sheets are located between the backrest frame and the back shell, and the back shell can cover the outer positioning sheets.

[0008] As a further improvement of the above technical solution, a plurality of outer positioning sheets are arranged to form a square, and the first hooks are arranged at intervals to form a square.

[0009] As a further improvement of the above technical solution, the outer positioning sheet is connected to the surrounding edge by sewing.

[0010] As a further improvement of the above technical solution, a plurality of inner positioning sheets are provided inside the backrest portion, and the inner positioning sheets can penetrate the sponge support body and the part passing through the sponge support body is provided with a plurality of second buckle holes, and the backrest frame is provided with a plurality of second hooks matching with the second buckle holes, and the inner positioning sheets pull the middle area of ​​the backrest portion to fit tightly against the sponge support body.

[0011] As a further improvement of the above technical solution, the inner positioning sheet is connected to the backrest portion by sewing.

[0012] As a further improvement of the above technical solution, the back shell body is connected to the backrest frame by means of a snap-fit ​​connection.

[0013] As a further improvement of the above technical solution, a mounting hole is provided on the back of the back shell, and a locking threaded hole corresponding to the mounting hole is provided on the backrest frame, and the mounting screw passes through the mounting hole of the back shell and then connects with the locking threaded hole.

[0014] Beneficial effects of the utility model: Compared with the prior art, the seat back cover installation structure provided by the utility model, through the first hook and the first buckle hole of the outer positioning plate body, makes the installation and removal of the cover on the backrest more convenient, and the operation can be completed without professional tools. The cover on the backrest can be easily removed for cleaning or replacement, which helps to keep the seat clean and hygienic and extend the overall service life of the seat. The cooperation between the outer positioning plate body and the first hook ensures the stability of the cover during use, and avoids the cover from loosening or falling off due to the movement of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cooperation between the outer positioning sheet and the first hook in the backrest cover installation structure.

[0016] Figure 2 It is a schematic diagram of the structure of the face cover.

[0017] Figure 3 It is a three-dimensional diagram of a sponge support.

[0018] Figure 4 It is a schematic diagram of the cooperation between the inner positioning sheet and the second hook in the backrest cover installation structure.

[0019] Figure 5 Illustration of backrest installed on seat Figure 1 .

[0020] Figure 6 Illustration of backrest installed on seat Figure 2 .

[0021] Description of the main component symbols: 1-backrest frame, 11-first hook, 12-second hook, 13-locking threaded hole, 14-operating window, 2-sponge support, 21-perforation, 3-face cover, 31-backrest part, 32-edge part, 33-outer positioning sheet, 331-first buckle hole, 34-inner positioning sheet, 341-second buckle hole, 4-back shell body. DETAILED DESCRIPTION

[0022] The utility model provides a seat back cover installation 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 embodiments. 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.

[0023] See also Figure 1-Figure 6 The utility model provides a seat back cover installation structure, comprising a back frame 1, a sponge support body 2 arranged at the front side of the back frame 1, a cover 3 sleeved on the sponge support body 2 and the back frame 1, and a back shell 4 installed behind the back frame 1, the back of the back frame 1 is provided with a plurality of first hooks 11 arranged adjacent to the back edge, the cover 3 comprises a backrest portion 31, a surrounding edge portion 32 integrally connected to the edge of the backrest portion 31, and a plurality of outer positioning sheets 33 connected to the rear edge of the surrounding edge portion 32, the outer positioning sheet 33 is provided with a first buckle hole 331 matched with the corresponding first hook 11, the outer positioning sheet 33 is located between the back frame 1 and the back shell 4, and the back shell 4 can cover the outer positioning sheet 33.

[0024] Compared with the prior art, the seat back cover installation structure provided by the utility model is designed to cooperate with the first hook 11 and the first buckle hole 331 of the outer positioning plate 33, so that the installation and removal of the cover 3 on the backrest becomes more convenient, and the operation can be completed without professional tools. The cover 3 on the backrest can be easily removed for cleaning or replacement, which helps to keep the seat clean and hygienic and extend the overall service life of the seat. The cooperation between the outer positioning plate 33 and the first hook 11 ensures the stability of the cover 3 during use, and avoids the cover 3 from loosening or falling off due to the movement of the user.

[0025] A plurality of outer positioning sheets 33 are arranged to form a square, and the first hooks 11 are arranged to form a square at intervals. In other words, four outer positioning sheets 33 are provided, and the four outer positioning sheets 33 correspond to the positioning of the four directions of the upper, lower, left, and right of the surrounding edge portion 32 of the face cover 3, respectively. Each outer positioning sheet 33 has a plurality of first buckle holes 331 arranged at intervals along its length direction, and the backrest frame 1 is provided with the same number of first buckle holes 331 and one-to-one corresponding first hooks 11, which evenly distribute the tension of the face cover 3, improve the stability of the face cover 3 on the backrest frame 1 and the sponge support body 2, and prevent the face cover 3 from being loosened or deformed during use.

[0026] In this embodiment, the backrest portion 31 and the surrounding edge portion 32 of the face cover 3 are made of cloth or leather, and the outer positioning piece is made of plastic. The plastic outer positioning piece body 33 has good toughness and can withstand a certain tensile force without being easily broken, thereby improving the durability of the entire face cover 3 structure, especially the outer positioning piece body 33 is not easily damaged during repeated disassembly and assembly. The outer positioning piece body 33 is connected to the surrounding edge portion 32 by sewing. The outer positioning piece body 33 is connected to the surrounding edge portion 32 by sewing, which not only ensures the firmness of the connection part, but also simplifies the manufacturing process and reduces the production difficulty.

[0027] In order to provide reliable and comfortable support for the user's back and reduce back fatigue, the sponge support body 2 is designed according to ergonomics. In order to ensure that the backrest portion 31 of the face cover 3 can be close to the surface of the sponge support body 2, a plurality of inner positioning sheets 34 are provided inside the backrest portion 31. The inner positioning sheets 34 can penetrate the sponge support body 2 and the part that passes through the sponge support body 2 is provided with a plurality of second buckle holes 341, that is, the sponge support body 2 is provided with a through hole 21 for the inner positioning sheet 34 to pass through and a back groove for the second hook 12 to be movably installed, and the back groove is connected to the through hole 21, and the backrest frame 1 is provided with a plurality of second hooks 12 that cooperate with the second buckle holes 341. The matching design of the second buckle holes 341 and the second hooks 12 simplifies the installation process of the face cover 3 and makes the installation more convenient without the need for complicated tools. The inner positioning sheet 34 pulls the middle area of ​​the backrest portion 31 to be close to the sponge support body 2, thereby avoiding wrinkles or looseness of the face cover 3 during use.

[0028] If the backrest portion 31 of the face cover 3 is made of leather, a shaped seam line will be formed on the backrest portion 31 , and the inner positioning sheet 34 is provided with three pieces arranged side by side in a door shape and arranged in the middle of the backrest portion 31 to provide evenly distributed traction.

[0029] Similarly, the inner positioning sheet 34 is connected to the backrest portion 31 by sewing, and the sewing connection method ensures a firm connection between the inner positioning sheet 34 and the backrest portion, thereby improving the stability of the entire face cover 3 structure, especially being able to effectively resist the stress generated by the backrest during use.

[0030] It is understandable that the backrest frame 1 is provided with an operation window 14 for a worker to pull the inner positioning sheet 34 .

[0031] In order to facilitate the disassembly and assembly of the back shell 4, the back shell 4 is connected to the backrest frame 1 by snapping. The back shell 4 is provided with a plurality of snap ears connected to the backrest frame 1 by snapping, and the backrest frame 1 is provided with snap holes matched with the snap ears. The cooperation between the snap ears and the snap holes ensures the tight connection between the back shell 4 and the backrest frame 1, thereby improving the stability of the backrest structure.

[0032] Furthermore, in order to prevent the back shell 4 from being removed by mistake and to improve the reliability of the connection, a mounting hole is provided on the back of the back shell 4, and a locking threaded hole 13 corresponding to the mounting hole is provided on the backrest frame 1. The mounting screw passes through the mounting hole of the back shell 4 and is then connected to the locking threaded hole 13 for locking. A screwdriver is needed to tighten the mounting screw to fix or remove the back shell 4.

[0033] In this embodiment, the backrest frame 1 is an injection molded part, that is, the backrest frame 1, the first hook 11, the second hook 12 and the buckle ear are all integrally formed by injection molding.

[0034] To summarize, the disassembly process of the backrest cover 3 is as follows: the staff first uses a screwdriver to remove the mounting screws on the back shell 4, and then presses the buckle ears to separate the buckle ears from the buckle holes to remove the back shell 4, and then pulls the inner positioning sheet 34 to separate the second buckle hole 341 on the inner positioning sheet 34 from the second hook 12, and then pulls the outer positioning sheet 33 to separate the first buckle hole 331 on the outer positioning sheet 33 from the first hook 11, thereby releasing the fixation of the cover 3, and finally pulls the cover 3 and the sponge support body 2 to remove them.

[0035] On the contrary, the installation process of the backrest cover 3 is as follows: the inner positioning sheet 34 on the cover 3 passes through the through hole 21 of the sponge support body 2, the surrounding edge 32 of the cover 3 first covers the sponge support body 2 and then covers the backrest frame 1, and then the first buckle hole 331 on the outer positioning sheet 33 is buckled on the first hook 11 of the backrest frame 1, and then the second buckle hole 341 on the inner positioning sheet 34 is buckled on the second hook 12 of the backrest frame 1, and finally the back shell 4 is installed and fixed.

[0036] 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.

[0037] 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.

[0038] 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 seat back cover mounting structure, comprising a back frame, a sponge support body arranged at the front side of the back frame, a cover sleeved on the sponge support body and the back frame, and a back shell body installed behind the back frame, characterized in that: The back of the backrest frame is provided with a plurality of first hooks adjacent to the back edge, the face cover includes a backrest portion, a surrounding edge portion integrally connected to the edge of the backrest portion, and a plurality of outer positioning sheets connected to the rear edge of the surrounding edge portion, the outer positioning sheet is provided with a first buckle hole matched with the corresponding first hook, the outer positioning sheet is located between the backrest frame and the back shell body, and the back shell body can cover the outer positioning sheet body.

2. The seat back cover installation structure according to claim 1, characterized in that: A plurality of outer positioning sheets are arranged to form a square, and the first hooks are arranged at intervals to form a square.

3. The seat back cover installation structure according to claim 1 or 2, characterized in that: The outer positioning sheet is connected to the surrounding edge by sewing.

4. The seat back cover installation structure according to claim 1, characterized in that: A plurality of inner positioning sheets are arranged inside the backrest portion, and the inner positioning sheets can penetrate the sponge support body and the part passing through the sponge support body is provided with a plurality of second buckle holes, and a plurality of second hooks matching with the second buckle holes are arranged on the backrest frame, and the inner positioning sheets pull the middle area of ​​the backrest portion to be close to the sponge support body.

5. The seat back cover installation structure according to claim 4, characterized in that: The inner positioning sheet is connected to the backrest portion by sewing.

6. The seat back cover mounting structure according to claim 1, characterized in that: The back shell body is connected to the backrest frame body by snap-fitting.

7. The seat back cover mounting structure according to claim 6, characterized in that: The back side of the back shell is provided with a mounting hole, and the backrest frame is provided with a locking threaded hole corresponding to the mounting hole. The mounting screw passes through the mounting hole of the back shell and is then connected with the locking threaded hole.

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