A pre-assembled structure of backrest and seat cushion frame

Abstract

The utility model discloses a pre-assembly structure of a backrest and a seat cushion frame, which relates to the technical field of automobile seats, and includes a lower connecting plate of a seat frame and a lower connecting plate of a backrest, wherein the lower connecting plate of the backrest is arranged on the outer side of the lower connecting plate of the seat frame, and a support plate and a baffle are fixedly connected to the lower connecting plate of the seat frame, wherein the baffle is located at the upper left side, and the support plate is located at the lower right side. The pre-assembly structure of the backrest and the seat cushion frame can easily realize the pre-fixed connection between the lower connecting plate of the backrest and the lower connecting plate of the seat frame through the coordinated action of the abutting part, the baffle, the arc part, the straight part, the support plate and the limit plate, and this connection method is stable and reliable, which is convenient for workers to accurately position when connecting the backrest and the seat frame, and can improve production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a pre-assembled structure of a backrest and a seat cushion frame. Background Art

[0002] With the development of science and technology and the improvement of people's living standards, cars have entered thousands of households and become the main means of transportation for people's daily travel. The number of car seats will be set inside the car according to the number of people. The car seat includes a seat frame assembly and a cover, and a foam layer is filled between the two. The seat frame assembly includes a backrest frame assembly and a cushion frame assembly. In the prior art, the assembly of the seat frame assembly is generally to fix the seat frame assembly first, and then align the bolt holes of the backrest frame assembly with the bolt holes of the cushion frame assembly and then use bolts to penetrate and fix them;

[0003] However, the above method has the following disadvantages: after the bolt holes of the backrest frame assembly are aligned with the bolt holes of the seat cushion frame assembly, the installer needs to hold the backrest frame assembly with one hand to prevent the backrest frame assembly from shifting, and use the other hand to take the bolts and operate the tightening bolts, which is extremely inconvenient. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a pre-assembly structure of a backrest and a seat cushion frame, which solves the technical problems mentioned in the background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a pre-assembled structure of a backrest and a seat cushion frame, comprising a lower connecting plate of a seat frame and a lower connecting plate of a backrest, the lower connecting plate of the backrest is arranged on the outer side of the lower connecting plate of the seat frame, a support plate and a baffle are fixedly connected to the lower connecting plate of the seat frame, the baffle is located at the upper left side, and the support plate is located at the lower right side;

[0006] A supporting portion is arranged at the upper left end of the lower connecting plate of the backrest, and an arc portion and a straight portion are arranged at the bottom right end. The arc portion and the straight portion are integrally formed, and the positions of the arc portion, the straight portion and the support plate correspond to each other, and the positions of the supporting portion and the baffle correspond to each other.

[0007] As a further optimization of the technical solution, a plurality of hook members are arranged on the lower connecting plate of the backrest, and a plurality of protrusion members are correspondingly arranged on the lower connecting plate of the seat frame. When the lower connecting plate of the seat frame and the lower connecting plate of the backrest are assembled, they are pre-fixed by connecting with the hook members and the protrusion members.

[0008] As a further preferred embodiment of the present technical solution, the support plate includes an arc-shaped plate and a limiting plate, and the arc-shaped plate and the limiting plate are fixedly connected.

[0009] As a further preferred embodiment of the present technical solution, a first lower connection hole and a first upper connection hole are provided on the surface of the lower connection plate of the seat frame, and the first upper connection hole is located above the first lower connection hole;

[0010] The surface of the lower connecting plate of the backrest is provided with a second lower connecting hole and a second upper connecting hole corresponding to the first lower connecting hole and the first upper connecting hole. The lower connecting plate of the seat frame and the lower connecting plate of the backrest are connected and fixed by bolts in cooperation with the second lower connecting hole and the first lower connecting hole, and the second upper connecting hole and the first upper connecting hole.

[0011] As a further preferred embodiment of the present technical solution, the hook member includes a first hook and a second hook, the first hook is located higher than the second hook, and the first hook and the second hook are oriented in different directions.

[0012] As a further preferred embodiment of the present technical solution, the protrusion includes a first protrusion and a second protrusion, the first protrusion, the second protrusion and the lower connecting plate of the seat frame are stamped integrally, the first protrusion and the second protrusion protrude toward the outer side of the lower connecting plate of the seat frame, and the first protrusion and the second protrusion correspond to the first hook and the second hook respectively.

[0013] Compared with the prior art, it has the following beneficial effects:

[0014] Through the coordinated action of the abutting part, baffle, arc part, straight part, support plate and limit plate, we can easily achieve the pre-fixed connection between the lower connecting plate of the backrest and the lower connecting plate of the seat frame. This connection method is stable and reliable, which is convenient for workers to accurately position the backrest and the seat frame when connecting them, and can improve production efficiency.

[0015] By hooking the first protrusion from the front with the first hook and supporting the second protrusion from the back with the second hook, the seat cushion and the backrest can maintain a relative position relationship, avoiding the staff from holding the backrest with their hands, facilitating subsequent operations such as installing bolts, saving assembly personnel, reducing labor costs, and improving seat assembly efficiency and assembly quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the first protrusion in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the lower connecting plate of the backrest in the utility model.

[0019] In the figure: 1, seat frame lower connecting plate; 2, backrest lower connecting plate; 11, first protrusion; 12, second protrusion; 13, support plate; 131, arc plate; 132, limit plate; 14, baffle; 15, first lower connecting hole; 16, first upper connecting hole; 22, second upper connecting hole; 23, second lower connecting hole; 24, bolt; 25, first hook; 26, second hook; 27, arc portion; 28, straight portion; 29, abutment portion. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings of the specification to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1: Combination Figure 1-Figure 3 As shown, the utility model provides a technical solution: a pre-assembly structure of a backrest and a seat cushion frame, comprising a lower connecting plate 1 of a seat frame and a lower connecting plate 2 of a backrest, the lower connecting plate 2 of the backrest is arranged on the outer side of the lower connecting plate 1 of the seat frame, a plurality of hooks are arranged on the lower connecting plate 2 of the backrest, and a plurality of protrusions are correspondingly arranged on the lower connecting plate 1 of the seat frame, and the lower connecting plate 1 of the seat frame and the lower connecting plate 2 of the backrest are pre-fixed by connecting the hooks and the protrusions when assembling;

[0022] A support plate 13 and a baffle plate 14 are fixedly connected to the lower connecting plate 1 of the seat frame. The baffle plate 14 is located at the upper left side, and the support plate 13 is located at the lower right side. The support plate 13 includes an arc plate 131 and a limit plate 132, and the arc plate 131 and the limit plate 132 are fixedly connected;

[0023] A supporting portion 29 is provided at the upper left end of the lower connecting plate 2 of the backrest, and an arc portion 27 and a straight portion 28 are provided at the bottom right end. The arc portion 27 and the straight portion 28 are integrally formed, and the positions of the arc portion 27, the straight portion 28 and the arc plate 131 and the limit plate 132 correspond to each other, and the positions of the supporting portion 29 and the baffle 14 correspond to each other.

[0024] In the embodiment of the present invention, the lower connecting plate 2 of the backrest is a key component connecting the backrest and the seat frame, and the lower connecting plate 1 of the seat frame is the basis for supporting the entire seat structure. At the bottom right end of the lower connecting plate 2 of the backrest, we can see the arc portion 27 and the straight portion 28. The design of these two parts is to ensure that the lower connecting plate 2 of the backrest can be firmly placed on the support plate 13. When we place the lower connecting plate 2 of the backrest on the support plate 13, the abutting portion 29 will tightly abut against the inner wall of the baffle 14. This abutting action not only fixes the position of the lower connecting plate 2 of the backrest, but also ensures the stability between the lower connecting plate 2 of the backrest and the support plate 13. In this process, the limit plate 132 also plays an important role. The function of the curved portion 27 and the straight portion 28 is to limit the movement range of the lower connecting plate 2 of the backrest on the support plate 13, further enhancing the stability of the connection. In addition to the synergistic effect of the above-mentioned components, the design of the curved portion 27 and the straight portion 28 also fully considers ergonomics and comfort. The curvature of the curved portion 27 can perfectly fit the back curve of the human body, while the straight portion 28 provides sufficient supporting force to ensure that the user can remain comfortable when sitting for a long time. In summary, through the synergistic effect of the abutting portion 29, the baffle 14, the curved portion 27, the straight portion 28, the support plate 13 and the limiting plate 132, we can easily achieve the pre-fixed connection between the lower connecting plate 2 of the backrest and the lower connecting plate 1 of the seat frame. This connection method is stable and reliable.

[0025] Embodiment 2: Combination Figure 2 , Figure 3 As shown, on the basis of the first embodiment, a first lower connection hole 15 and a first upper connection hole 16 are opened on the surface of the lower connection plate 1 of the seat frame, and the first upper connection hole 16 is located above the first lower connection hole 15;

[0026] The surface of the lower connecting plate 2 of the backrest is provided with a second lower connecting hole 23 and a second upper connecting hole 22 corresponding to the first lower connecting hole 15 and the first upper connecting hole 16. The lower connecting plate 1 of the seat frame and the lower connecting plate 2 of the backrest are connected and fixed by bolts 24 through the second lower connecting hole 23 and the first lower connecting hole 15, and the second upper connecting hole 22 and the first upper connecting hole 16.

[0027] In the embodiment of the present invention, the lower connecting plate 2 of the backrest and the lower connecting plate 1 of the seat frame are two key components of the seat. The lower connecting plate 2 of the backrest mainly supports and fixes the backrest, while the lower connecting plate 1 of the seat frame bears the weight of the entire seat. In order to ensure that the two parts can be firmly connected together, the designers use bolt connection.

[0028] Specifically, the backrest lower connecting plate 2 is provided with a second lower connecting hole 23 and a second upper connecting hole 22, and the seat frame lower connecting plate 1 is correspondingly provided with a first lower connecting hole 15 and a first upper connecting hole 16. During the assembly process, the worker only needs to align the second lower connecting hole 23 and the second upper connecting hole 22 with the first lower connecting hole 15 and the first upper connecting hole 16, and then use the bolts 24 to pass through these holes to tightly connect the backrest lower connecting plate 2 and the seat frame lower connecting plate 1 together.

[0029] The advantages of this connection method are its stability and adjustability. The bolt connection can provide strong pulling force to ensure that the backrest and the seat frame are not easy to loosen or separate. In addition, this connection method also has good durability. The high-quality bolts and connecting plate materials can resist wear and deformation in daily use, ensuring the service life of the seat. Moreover, this connection method is also easy to maintain and replace parts. When a part is damaged, you only need to simply remove the bolts and replace the corresponding parts.

[0030] In short, the method of fixing the lower connecting plate 2 of the backrest and the lower connecting plate 1 of the seat frame by bolts can not only ensure the stability and comfort of the seat, but also has good durability and maintainability.

[0031] Example 3: Combination Figure 2 , Figure 3 As shown, based on the second embodiment, the hook member includes a first hook 25 and a second hook 26, the first hook 25 is located higher than the second hook 26, and the first hook 25 and the second hook 26 are oriented in different directions;

[0032] The protrusion includes a first protrusion 11 and a second protrusion 12. The first protrusion 11 and the second protrusion 12 are integrally stamped with the lower connecting plate 1 of the seat frame. The first protrusion 11 and the second protrusion 12 protrude toward the outer side of the lower connecting plate 1 of the seat frame. The first protrusion 11 and the second protrusion 12 are respectively arranged corresponding to the first hook 25 and the second hook 26.

[0033] In an embodiment of the present invention, the first hook 25 hooks the first protrusion 11 from the front, and the second hook 26 supports the second protrusion 12 from the back. This design cleverly combines the front and rear forces to form a stable connection. During installation, this connection mechanism can ensure that the lower connecting plate 2 of the backrest is firmly maintained on the lower connecting plate 1 of the seat frame and is not easy to shake or shift.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A backrest and seat cushion frame pre-assembly structure, comprising a seat frame lower connecting plate (1) and a backrest lower connecting plate (2), wherein the backrest lower connecting plate (2) is arranged on the outer side of the seat frame lower connecting plate (1), characterized in that: A support plate (13) and a baffle plate (14) are fixedly connected to the lower connecting plate (1) of the seat frame, wherein the baffle plate (14) is located at the upper left side and the support plate (13) is located at the lower right side; The left upper end of the lower connecting plate (2) of the backrest is provided with a supporting portion (29), and the right lower end is provided with an arc portion (27) and a straight portion (28); the arc portion (27) and the straight portion (28) are integrally formed; the positions of the arc portion (27), the straight portion (28) and the support plate (13) correspond to each other; and the positions of the supporting portion (29) and the baffle plate (14) correspond to each other.

2. A backrest and seat cushion frame pre-assembly structure according to claim 1, characterized in that: A plurality of hook members are arranged on the backrest lower connecting plate (2), and a plurality of protrusion members are correspondingly arranged on the seat frame lower connecting plate (1). When the seat frame lower connecting plate (1) and the backrest lower connecting plate (2) are assembled, they are pre-fixed by connecting the hook members and the protrusion members.

3. The pre-assembled structure of a backrest and seat cushion frame according to claim 1, characterized in that: The support plate (13) comprises an arc-shaped plate (131) and a limiting plate (132), and the arc-shaped plate (131) and the limiting plate (132) are fixedly connected.

4. The pre-assembled structure of a backrest and a seat cushion frame according to claim 1, characterized in that: A first lower connection hole (15) and a first upper connection hole (16) are provided on the surface of the lower connection plate (1) of the seat frame, and the first upper connection hole (16) is located above the first lower connection hole (15); The surface of the backrest lower connecting plate (2) is provided with a second lower connecting hole (23) and a second upper connecting hole (22) corresponding to the first lower connecting hole (15) and the first upper connecting hole (16); the seat frame lower connecting plate (1) and the backrest lower connecting plate (2) are connected and fixed by bolts (24) in accordance with the second lower connecting hole (23) and the first lower connecting hole (15), and the second upper connecting hole (22) and the first upper connecting hole (16).

5. The pre-assembled structure of a backrest and seat cushion frame according to claim 1, characterized in that: The hook member comprises a first hook (25) and a second hook (26); the first hook (25) is located higher than the second hook (26); and the first hook (25) and the second hook (26) have different directions.

6. A backrest and seat cushion frame pre-assembly structure according to claim 5, characterized in that: The protrusion member comprises a first protrusion (11) and a second protrusion (12); the first protrusion (11), the second protrusion (12) and the lower connecting plate (1) of the seat frame are integrally stamped and formed; the first protrusion (11) and the second protrusion (12) protrude toward the outer side of the lower connecting plate (1) of the seat frame; the first protrusion (11) and the second protrusion (12) are respectively arranged corresponding to the first hook (25) and the second hook (26).

Images