External hanging structure of seat backrest

Abstract

The utility model discloses a seat backrest external hanging structure which comprises a backrest framework, a backrest face sleeve and an external hanging piece, the front section of the external hanging piece is a vertical section, the left end and the right end of the vertical section are respectively provided with an installation hole, threaded holes corresponding to the installation holes are formed in the backrest framework, and pressing blocks corresponding to the left end and the right end of the external hanging piece are arranged on the back face of the backrest face sleeve respectively. The pressing block is attached to the backrest face sleeve and penetrates through the backrest face sleeve through the supporting feet to be connected to the backrest framework in a clamped mode so that the backrest face sleeve can be pressed tightly, through holes are formed in the positions, corresponding to the threaded holes, of the backrest face sleeve and the pressing block, the threaded holes are provided with bolts, and the bolts sequentially penetrate through the installation holes and the two through holes and are screwed into the threaded holes. Therefore, the external hanging piece and the backrest framework are fixed. According to the structural design, different external hanging pieces such as a table board, a hook or an electronic equipment support can be easily matched and replaced according to needs, the flexibility enables the seat to meet the requirements of different users and use scenes, and the practicability and multifunctionality of the seat are improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to an external structure for a seat back. Background Technology

[0002] With the rapid development of the automotive industry, car seats, as one of the core components of the driving and riding experience, have received much attention for their functionality and comfort design. In the seat back structure, the installation and fixation of external attachments is a crucial technical aspect for enhancing the seat's multi-functionality (such as hooks, storage pockets, electronic device brackets, etc.). However, traditional external attachment structures for seat backs still have many shortcomings in practical applications.

[0003] In existing technologies, external accessories are typically fixed directly to the backrest frame via welding or riveting. While this method meets the load-bearing requirements, it presents challenges such as inconvenience in assembly and disassembly. Alternatively, bolts can be used to fix the accessories to the backrest frame, but in the installation area, the seat cover is prone to localized deformation and loosening due to bolt tightening or stress on the accessory, potentially leading to wrinkles or wear on the cover surface, severely impacting the seat's aesthetics and lifespan. Furthermore, there is room for improvement in the collaborative design of existing external accessories, covers, and the frame. For example, external accessories need to penetrate the cover and be directly locked to the frame during installation. Without localized reinforcement in the installation area, stress concentration at the perforation points can easily occur, leading to cracking of the cover edges after prolonged use. Additionally, the traditional mounting hole layout for external accessories requires high alignment accuracy with the threaded holes in the frame. The openings on the cover are through holes, also requiring high alignment accuracy. Because the cover is prone to expansion and contraction, if the holes are not properly secured, repeated adjustments to the through hole position are necessary during assembly, resulting in low installation efficiency. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention aims to provide a seat back external hanging structure that can simplify the installation process of external parts while ensuring uniform compression and long-term stability of the cover, thereby taking into account both the functionality and aesthetics of the seat.

[0005] To achieve the above objectives, this utility model proposes a seat backrest external hanging structure, including a backrest frame, a backrest cover, and an external hanging component. The front section of the external hanging component is a vertical section, and mounting holes are provided at both ends of the vertical section. The backrest frame has threaded holes corresponding to each mounting hole. The back of the backrest cover has pressure blocks at both ends of the external hanging component. The pressure blocks fit against the backrest cover and are secured to the backrest frame by means of support legs passing through the backrest cover, thereby pressing the backrest cover tightly. The backrest cover and the pressure blocks have through holes at the positions corresponding to the threaded holes. Bolts are provided in the threaded holes. The bolts pass through the mounting holes and the two through holes in sequence and are screwed into the threaded holes to fix the external hanging component to the backrest frame.

[0006] In the above solution, the external attachment is a small table, hook, or electronic device bracket. This flexibility allows the seat to meet the needs of different users and usage scenarios, improving the practicality and multifunctionality of the seat.

[0007] In the above scheme: each of the left and right ends of the vertical section of the external bracket is provided with two mounting holes, which are arranged vertically at intervals, and the bolts are arranged in a rectangular pattern to ensure the firmness of the installation.

[0008] In the above solution, the pressure block is made of plastic, which helps to meet the requirements of lightweight seats.

[0009] In the above solution: the through hole on the pressure block is equipped with a plug, which can seal the through hole when the external attachment is removed from the backrest frame. The plug serves as a cover, which helps to ensure the aesthetic appearance of the seat.

[0010] In the above solution, the support legs of the pressure block are connected to the backrest frame by an inverted snap-fit ​​structure, which is simple in structure and easy to process.

[0011] The beneficial effects of this utility model are as follows: 1. This structural design allows for easy adaptation and replacement of different external accessories, such as tabletops, hooks, or electronic device brackets, as needed. This flexibility enables the chair to meet the needs of different users and usage scenarios, improving the chair's practicality and multifunctionality. 2. The external accessories are fixed to the backrest frame with bolts, making the installation process simple and quick. The design of the pressure block and support feet ensures that the backrest cover can be firmly pressed against the backrest frame, preventing the through holes on the backrest cover from shifting and interfering with the installation of external accessories, thus ensuring the stability and reliability of the installation. 3. Bolts pass through the mounting holes, the through holes on the backrest cover and the pressure block, and are screwed into the threaded holes on the backrest frame, forming a firm connection. The pressure block fits snugly against the backrest cover, not only providing a fixing function but also reducing the risk of cracking at the edges of the cover openings, maintaining the neatness and aesthetics of the chair's appearance. Attached Figure Description

[0012] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a side view of the present invention.

[0015] Figure 3 This is a structural diagram of an external accessory.

[0016] Figure 4 This is a schematic diagram of the installation of the pressure block.

[0017] Figure 5 This is a schematic diagram of the air inlet and air outlet.

[0018] Figure 6 This is a schematic diagram of the interior of the seat back.

[0019] Figure 7 This is a schematic diagram of the foam backrest. Detailed Implementation

[0020] like Figure 1 As shown in Figure 7, a seat backrest external hanging structure mainly consists of a seat back frame 8, a seat back cover 1, and an external hanging component 2. The front section of the external hanging component 2 is a vertical section, and the left and right ends of the vertical section are respectively provided with mounting holes 3. The seat back frame 8 is provided with threaded holes corresponding to each mounting hole.

[0021] The backrest cover 1 has pressure blocks 4 on both the left and right ends corresponding to the external hanging piece 2. The pressure blocks 4 fit against the backrest cover 1 and are secured to the backrest frame 8 through the support feet, thus pressing the backrest cover 1 tightly. This not only provides a fixing function, preventing the holes on the backrest cover 1 from shifting, but also reduces the risk of cracking at the edges of the openings in the backrest cover 1, maintaining the neatness and aesthetics of the seat.

[0022] Both the backrest sleeve 1 and the pressure block 4 have through holes 5 at the corresponding threaded hole positions. The threaded holes are equipped with bolts. The bolts pass through the mounting hole 3 and the two through holes 5 in sequence and are screwed into the threaded holes to fix the external hanging part 2 to the backrest frame 8.

[0023] Ideally, the external attachment 2 can be a small table, hook, or electronic device bracket, which can be adapted as needed. This flexibility allows the seat to meet the needs of different users and usage scenarios, improving the practicality and versatility of the seat.

[0024] Ideally, each end of the vertical section of the external mounting bracket 2 should have two mounting holes 3, with the two mounting holes 3 spaced apart vertically and the bolts arranged in a rectangular pattern to ensure a secure installation.

[0025] Ideally, pressure block 4 should be made of plastic, which would help meet the requirements for lightweight seats.

[0026] Ideally, the through hole 5 on the pressure block 4 should be equipped with a plug, which can be used to seal the through hole 5 when the external attachment 2 is removed from the backrest frame. The plug serves to conceal the hole and helps ensure the aesthetic appearance of the seat.

[0027] Ideally, the support legs of the pressure block 4 should be connected to the backrest frame 8 via an inverted snap-fit ​​structure, which is simple in structure and easy to process.

[0028] Ideally, the backrest frame 8 is covered with backrest foam 9, and the backrest cover 1 covers the backrest foam 9. The front of the backrest cover 1 has ventilation holes. The fan 6 and the air bag 7 are both fixed to the backrest frame 8, specifically to the backrest suspension. The air bag 7 has several suction holes 11 on its front, and the front of the backrest foam 4 has air inlets 10 communicating with each suction hole 11. The back of the air bag 7 is connected to the fan 6. The backrest foam 9 has a cavity inside to accommodate the fan 6, and this cavity is closed under the cover of the backrest cover 1. The fan 6 is located within the cavity, and the upper front of the backrest foam 9 has an air outlet 12 communicating with the cavity. The air outlet 12 is located in the neck support area of ​​the backrest foam 9.

[0029] This structure simultaneously realizes the air intake and air blowing functions of the seat back. In this way, the air intake hole 11 can draw out the heat and moisture between the passenger's back and the seat to achieve the cooling and dehumidification effect, and the air outlet hole 12 can deliver air (the air outlet hole 12 corresponds to the neck area of ​​the human body, keeping the neck area dry and comfortable) to provide passengers with a cool riding environment, which greatly improves the ventilation efficiency and comfort of the seat, reduces the waste of air power, and meets the diverse needs of passengers in different environments.

Claims

1. A seat backrest external hanging structure, comprising a backrest frame (8), a backrest cover (1), and an external hanging component (2), characterized in that: The front section of the external attachment (2) is a vertical section, and the left and right ends of the vertical section are respectively provided with mounting holes (3). The backrest frame (8) is provided with threaded holes corresponding to each mounting hole. The back of the backrest sleeve (1) is provided with pressure blocks (4) corresponding to the left and right ends of the external attachment (2). The pressure blocks (4) fit against the backrest sleeve (1) and are clamped to the backrest frame (8) through the support feet to press the backrest sleeve (1) tightly. The backrest sleeve (1) and the pressure blocks (4) are provided with through holes (5) at the positions corresponding to the threaded holes. The threaded holes are equipped with bolts. The bolts pass through the mounting holes (3) and the two through holes (5) in sequence and are screwed into the threaded holes to fix the external attachment (2) to the backrest frame.

2. The seat backrest external hanging structure according to claim 1, characterized in that: The external attachment (2) is a small table, hook, or electronic device bracket.

3. The seat backrest external hanging structure according to claim 1, characterized in that: The vertical section of the external attachment (2) is provided with two mounting holes (3) at either end of the left or right end, and the two mounting holes (3) are arranged at intervals above and below.

4. The seat backrest external hanging structure according to claim 1, characterized in that: The pressure block (4) is a plastic part.

5. The seat backrest external hanging structure according to claim 1, characterized in that: The through hole (5) on the pressure block (4) is equipped with a plug, which can be sealed when the external attachment (2) is removed from the backrest frame (8).

6. The seat backrest external hanging structure according to claim 1, characterized in that: The support legs of the pressure block (4) are connected to the backrest frame (8) by an inverted snap-fit ​​structure.

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