Lightweight passenger car seat framework

Abstract

The utility model discloses a lightweight passenger car seat framework, and particularly relates to the technical field of seat frameworks, the lightweight passenger car seat framework comprises a seat basin framework and a backrest framework, the backrest framework is connected with the seat basin framework through a rotating shaft, a reinforcing rod is arranged in the backrest framework, a waist pushing assembly is arranged at the front end of the reinforcing rod, a sliding groove is formed in the front end of the reinforcing rod, and the waist pushing assembly is arranged in the sliding groove. The waist pushing assembly comprises a two-way lead screw, and the two-way lead screw is arranged in the sliding groove. The seat basin framework, the backrest framework, the rotating shaft, the reinforcing rods, the two-way lead screw, the nut blocks, the long plates and the connecting plates are made of aluminum alloy, the strength of the passenger car seat framework can be guaranteed, the passenger car seat framework can be light, the two nut blocks on the two-way lead screw are used for driving the two long plates to intersect, and therefore the passenger car seat framework is convenient to assemble and disassemble. And when the connecting plates at the front ends of the two long plates move forwards, the lumbar vertebra of the passenger can be supported, so that the comfort of the passenger sitting on the seat is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seat frames, in particular to a lightweight passenger car seat frame. Background Art

[0002] A bus is a passenger vehicle that can carry more than 9 people (including the driver's seat). It generally has a square compartment and is a commercial vehicle used to carry passengers and their carry-on luggage. This type of vehicle is mainly used for public transportation and group transportation. The bus seat is one of the essential parts of the bus, and the bus seat frame is an important part of the bus seat and one of the key factors affecting the overall performance of the bus.

[0003] For example, the prior art publication number CN210591480U is a passenger car seat frame that is easy to adjust laterally for installation. The seat foot fixing holes opened on the first mounting plate of the seat frame and the body fixing holes opened on the second mounting plate of the utility model are both long waist holes, and the lateral position of the fastening bolts in the seat foot fixing holes or the body fixing holes can be adjusted, thereby facilitating the operator to adjust the installation position as needed when installing the seat frame in the car.

[0004] However, the above-mentioned prior art still has the following problems when in use: the existing bus seat frames usually only have a single function of adjusting the backrest. Due to the compact space in the bus compartment, the seat cannot be adjusted to too many angles. During the long process of riding in the bus, the passengers will feel sore and irritable due to the lack of support for their waists, which seriously affects the riding comfort of the passengers. Based on this, the utility model provides a lightweight bus seat frame with a waist push function. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a lightweight bus seat frame. The bus seat frame is made of aluminum alloy, which can not only ensure the strength of the bus seat frame, but also achieve the lightweight of the bus seat frame. The two nut blocks on the bidirectional screw rod are used to drive the two long plates to cross. When the connecting plates at the front ends of the two long plates move forward, they can play a supporting role at the lumbar vertebrae of the passengers, thereby improving the comfort of the passengers sitting on the seats, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lightweight passenger car seat frame, including a seat basin frame and a backrest frame, the backrest frame and the seat basin frame are connected by a rotating shaft, a reinforcement rod is provided inside the backrest frame, a lumbar push assembly is provided at the front end of the reinforcement rod, a slide groove is provided at the front end of the reinforcement rod, and the lumbar push assembly includes a two-way screw rod, the two-way screw rod is arranged inside the slide groove, and the two ends of the two-way screw rod are respectively rotatably connected to the inner walls on both sides of the slide groove, the outer walls on both sides of the two-way screw rod are threadedly connected with nut blocks, the two nut blocks are slidably arranged in the slide groove, the surfaces of the two nut blocks close to each other are provided with grooves, round rods are fixed in the two grooves, long plates are movably sleeved on the two round rods, and the two long plates are connected by a pin shaft.

[0007] In a preferred embodiment, a connecting plate is movably provided at one end of each of the two long plates, and two connecting holes are provided on each of the two connecting plates. The two connecting holes are evenly distributed on the two connecting plates. In actual use, bolts can be used to pass through the connecting holes to connect the connecting plate and the seat cushion for use together.

[0008] In a preferred embodiment, limit blocks are fixedly provided on the top and bottom of the two nut blocks, and limit grooves are provided on the top inner wall and the bottom inner wall of the slide groove. The limit blocks are arranged in the limit grooves, and the limit blocks are used to slide in the limit grooves, so as to improve the stability of the nut blocks when moving.

[0009] In a preferred embodiment, a mounting hole is opened at one end of the reinforcement rod for installing a motor that drives the bidirectional screw rod to rotate. In actual use, the motor is installed in the mounting hole to drive the bidirectional screw rod to rotate and adjust the positions of the two nut blocks.

[0010] In a preferred embodiment, a carbon fiber mesh is fixedly provided inside the backrest frame, and the carbon fiber mesh is arranged above the reinforcement rod to improve the supporting strength of the backrest frame.

[0011] In a preferred embodiment, angle adjusters are fixedly provided between the two ends of the rotating shaft and the seat basin frame for adjusting the angle of the backrest frame.

[0012] In a preferred embodiment, the seat basin frame, backrest frame, rotating shaft, reinforcing rod, bidirectional screw rod, nut block, long plate and connecting plate are all made of aluminum alloy.

[0013] Technical effects and advantages of the utility model:

[0014] The utility model adopts aluminum alloy to make the seat basin frame, backrest frame, rotating shaft, reinforcing rod, bidirectional screw rod, nut block, long plate and connecting plate, which can not only ensure the strength of the bus seat frame, but also realize the lightweight of the bus seat frame, and utilizes two nut blocks on the bidirectional screw rod to drive the two long plates to cross, and the connecting plate at the front end of the two long plates can play a supporting role at the lumbar vertebra of the passenger when moving forward, thereby improving the comfort of the passenger sitting on the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a top view of the overall structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the reinforcement rod and waist push assembly of the utility model;

[0018] Figure 4 It is a cross-sectional view of the reinforcement rod of the utility model;

[0019] Figure 5 It is a top view of the waist push assembly structure of the utility model.

[0020] The reference numerals are: 1, seat basin frame; 2, backrest frame; 3, rotating shaft; 4, reinforcement rod; 5, waist push assembly; 6, slide groove; 7, connecting plate; 8, connecting hole; 9, limit block; 10, limit groove; 11, mounting hole; 12, carbon fiber mesh; 13, angle adjuster;

[0021] 501, bidirectional screw; 502, nut block; 503, groove; 504, round rod; 505, long plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model 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 in 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.

[0023] Refer to the instruction manual Figure 1-5The utility model provides a lightweight passenger car seat frame, including a seat pan frame 1 and a backrest frame 2, the backrest frame 2 is connected to the seat pan frame 1 through a rotating shaft 3, a reinforcing rod 4 is arranged inside the backrest frame 2, a waist push assembly 5 is arranged at the front end of the reinforcing rod 4, a slide groove 6 is opened at the front end of the reinforcing rod 4, the waist push assembly 5 includes a bidirectional screw rod 501, the bidirectional screw rod 501 is arranged inside the slide groove 6, and the two ends of the bidirectional screw rod 501 are respectively rotatably connected to the inner walls on both sides of the slide groove 6, the outer walls on both sides of the bidirectional screw rod 501 are threadedly connected with nut blocks 502, and the two nut blocks 502 are slidably arranged in the slide groove 6;

[0024] A groove 503 is provided on the surface of the adjacent side of the two nut blocks 502, and a round rod 504 is fixed in each of the two grooves 503. A long plate 505 is movably sleeved on each of the two round rods 504, and the two long plates 505 are connected by a pin shaft. A connecting plate 7 is movably provided at one end of the two long plates 505, and two connecting holes 8 are provided on each of the two connecting plates 7. The two connecting holes 8 are evenly distributed on the two connecting plates 7. In actual use, bolts can be used to pass through the connecting holes 8 to connect the connecting plate 7 to the seat cushion for use;

[0025] In addition, a mounting hole 11 is provided at one end of the reinforcing rod 4 for mounting a motor for driving the bidirectional screw rod 501 to rotate. In actual use, the motor is installed in the mounting hole 11 to drive the bidirectional screw rod 501 to rotate and adjust the positions of the two nut blocks 502.

[0026] The seat basin frame 1, backrest frame 2, rotating shaft 3, reinforcing rod 4, bidirectional screw 501, nut block 502, long plate 505 and connecting plate 7 are all made of aluminum alloy. Aluminum alloy has high strength, high ductility, good welding performance and high plasticity, can withstand large loads, reduce weight and improve safety performance. Therefore, the frame made of aluminum alloy can achieve lightweight bus frame.

[0027] By using aluminum alloy to make the seat basin frame 1, backrest frame 2, rotating shaft 3, reinforcing rod 4, bidirectional screw rod 501, nut block 502, long plate 505 and connecting plate 7, the strength of the bus seat frame can be ensured and the lightweight of the bus seat frame can be achieved. The reinforcing rod 4 is arranged inside the backrest frame 2 to improve the strength of the backrest frame 2. The motor in the reinforcing rod 4 can also be used to drive the bidirectional screw rod 501 to rotate. The two nut blocks 502 on the bidirectional screw rod 501 are close to each other, so that the two long plates 505 are crossed and the connecting plate 7 at the front end of the two long plates 505 is driven forward. When the passengers sit on the seats, the two connecting plates 7 are used to push the soft cushion bulge on the bus seat, so as to provide support at the lumbar spine of the passengers, thereby improving the comfort of the passengers sitting on the seats.

[0028] Refer to the instruction manual Figure 1-5 The top and bottom of the two nut blocks 502 are fixed with limit blocks 9, and the top inner wall and the bottom inner wall of the slide groove 6 are provided with limit grooves 10, and the limit blocks 9 are arranged in the limit grooves 10. The limit blocks 9 slide in the limit grooves 10, so as to improve the stability of the nut blocks 502 when moving;

[0029] In addition, a carbon fiber mesh 12 is fixedly provided inside the backrest frame 2. The carbon fiber mesh 12 is arranged above the reinforcement rod 4 to improve the supporting strength of the backrest frame 2. An angle adjuster 13 is fixedly provided between the two ends of the rotating shaft 3 and the seat basin frame 1 to adjust the angle of the backrest frame 2.

[0030] By setting two limit blocks 9 on each nut block 502, the nut block 502 drives the limit block 9 to slide in the limit groove 10 when moving. With the help of the limit block 9, the stability of the nut block 502 when moving can be further improved. The carbon fiber mesh 12 and the reinforcement rod 4 cooperate to improve the supporting strength of the backrest frame 2, and the angle adjuster 13 is used to adjust the angle of the backrest frame 2, so as to improve the stability of the backrest frame 2.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A lightweight passenger car seat frame, characterized in that: It comprises a seat basin frame (1) and a backrest frame (2), wherein the backrest frame (2) and the seat basin frame (1) are connected via a rotating shaft (3); The backrest frame (2) is provided with a reinforcement rod (4) inside, and a waist push assembly (5) is provided at the front end of the reinforcement rod (4). A slide groove (6) is provided at the front end of the reinforcement rod (4). The waist push assembly (5) comprises a bidirectional screw rod (501), and the bidirectional screw rod (501) is arranged inside the slide groove (6). The two ends of the bidirectional screw rod (501) are rotatably connected to the inner walls of the slide groove (6) on both sides. The outer walls of both sides of the bidirectional screw rod (501) are both threadedly connected with nut blocks (502), and the two nut blocks (502) are both slidably arranged in the slide groove (6); A groove (503) is provided on the surface of one side of the two nut blocks (502) close to each other. Round rods (504) are fixedly provided in the two grooves (503). Long plates (505) are movably sleeved on the two round rods (504), and the two long plates (505) are connected by a pin shaft.

2. The lightweight passenger car seat frame according to claim 1, characterized in that: A connecting plate (7) is movably provided at one end of each of the two long plates (505), and two connecting holes (8) are provided on each of the two connecting plates (7). The two connecting holes (8) are evenly distributed on the two connecting plates (7).

3. The lightweight passenger car seat frame according to claim 1, characterized in that: Limit blocks (9) are fixedly provided on the top and bottom of the two nut blocks (502), and the top inner wall and the bottom inner wall of the slide groove (6) are both provided with limit grooves (10). The limit blocks (9) are arranged in the limit grooves (10) to improve the stability of the nut blocks (502) when moving.

4. The lightweight passenger car seat frame according to claim 1, characterized in that: One end of the reinforcing rod (4) is provided with a mounting hole (11) for mounting a motor for driving the bidirectional screw rod (501) to rotate.

5. The lightweight passenger car seat frame according to claim 1, characterized in that: A carbon fiber net (12) is fixedly provided inside the backrest frame (2); the carbon fiber net (12) is provided above the reinforcement rod (4) and is used to improve the supporting strength of the backrest frame (2).

6. The lightweight passenger car seat frame according to claim 1, characterized in that: Angle adjusters (13) are fixedly provided between the two ends of the rotating shaft (3) and the seat basin frame (1) for adjusting the angle of the backrest frame (2).

7. The lightweight passenger car seat frame according to claim 1, characterized in that: The seat basin frame (1), the backrest frame (2), the rotating shaft (3), the reinforcing rod (4), the bidirectional screw rod (501), the nut block (502), the long plate (505) and the connecting plate (7) are all made of aluminum alloy.

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