An automotive seat backrest frame and seat cushion frame connection structure

Abstract

The present invention relates to the technical field of the connection between an automobile seat and a backrest, and particularly relates to a connection structure between a backrest frame and a seat cushion frame of an automobile seat, which includes a seat cushion mechanism. One end of the seat cushion mechanism is hinged with a backrest mechanism. The seat cushion mechanism includes two symmetrically arranged moving parts. Each moving part includes a rod sleeve, and a moving rod is slidably connected in the rod sleeve. One end of the moving rod away from the rod sleeve is hinged with the backrest mechanism. A motion mechanism is arranged below the seat cushion mechanism. The rod sleeve is connected with the motion mechanism, and the moving rod is connected with the motion mechanism. The seat cushion mechanism further includes a flipping part, and the flipping part is connected with the backrest mechanism. The motion mechanism is electrically connected with a vehicle controller, and the vehicle controller is electrically connected with a collision sensor.

Description

Technical Field

[0001] The present invention relates to the technical field of the connection between an automotive seat and a backrest, and particularly relates to a connection structure between a backrest frame and a seat cushion frame of an automotive seat. Background Art

[0002] With the development of the automotive industry, the design of automotive seats has been continuously improving. As one of the components in a vehicle that is directly related to the comfort and safety of passengers, the quality of automotive seats is of crucial importance. Among them, the connection structure between the backrest frame and the seat cushion frame is one of the key factors to ensure the overall stability and riding comfort of the seat. Currently, the mainstream automotive seat designs on the market adopt various different connection methods to achieve the fixation between the backrest frame and the seat cushion frame. These methods can be roughly classified into mechanical fastener connections, welding connections, and integral molding, etc.: Mechanical fastener connections: Two components are tightly connected by means of screws, bolts, or rivets, etc. This method is convenient for installation and disassembly, but may become loose after long-term use, affecting stability. Welding connections: Suitable for permanent connections between metal materials, with relatively high strength and rigidity. However, the welding points are prone to become stress concentration areas, increasing the risk of fracture, and are difficult to repair once damaged. Integral molding: The complete seat frame is manufactured in one go using a mold, which can provide the best overall performance. However, this process is complex and costly, and is not applicable to all types of vehicles.

[0003] The history of automotive seats is closely related to the start of the automotive industry. The early automotive seat designs were very simple, mainly for providing basic riding functions. With the continuous improvement of people's requirements for driving and riding comfort and safety, the design and technology of automotive seats have also undergone remarkable development. Early development stage: The earliest automotive seats were just simple wooden or metal frames with leather or fabric covers, and their main function was to support passengers. Comfort improvement: Since the mid-20th century, with the application of new materials and new technologies such as memory foam, ventilation systems, and heating devices, the comfort of seats has been greatly improved. Safety enhancement: Subsequently, safety facilities such as seat belts, headrests, and side airbags have been integrated into seat designs, greatly improving the safety of riding. Intelligent trend: After entering the 21st century, intelligent features such as intelligent adjustment, massage functions, and electric adjustment have gradually become popular, providing users with a more personalized driving and riding experience.

[0004] Currently, the most important development direction is to improve safety. In the event of a car accident, when being rear-ended or rear-ending, the driver is very likely to be injured. Although protected by seat belts, injuries still cannot be avoided. And the automotive seat and the backrest are the parts that are directly in contact with the driver. Therefore, it is very necessary to improve the safety of the automotive seat and the backrest.

[0005] Therefore, the present invention provides a connection structure between a car seat backrest frame and a seat cushion frame to solve the above problems. Summary of the Invention

[0006] In view of the above situation, to overcome the deficiencies of the prior art, the present invention provides a connection structure between a car seat backrest frame and a seat cushion frame, effectively solving the problem that the existing car seat and backrest cannot cooperate with the seat belt to protect the driver in the event of a car accident.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] A connection structure between a car seat backrest frame and a seat cushion frame includes a seat cushion mechanism. One end of the seat cushion mechanism is hinged with a backrest mechanism. The seat cushion mechanism includes two symmetrically arranged moving members. Each moving member includes a rod sleeve, and a moving rod is slidably connected in the rod sleeve. The end of the moving rod away from the rod sleeve is hinged with the backrest mechanism. A motion mechanism is arranged below the seat cushion mechanism. The rod sleeve is connected with the motion mechanism, and the moving rod is connected with the motion mechanism. The seat cushion mechanism further includes a flipping member, and the flipping member is connected with the backrest mechanism. The motion mechanism is electrically connected with a vehicle controller, and the vehicle controller is electrically connected with a collision sensor.

[0009] Specifically, when the driver's vehicle rear-ends another vehicle, the motion mechanism drives the rod sleeve to move towards the backrest mechanism, causing the driver's legs to move backward, reducing the harm caused to the driver when the cockpit collapses during a collision. At the same time, the flipping member drives the backrest mechanism to flip towards the seat cushion mechanism, causing the backrest mechanism to flip forward, reducing the impact on the head of the co-passenger behind the driver by the back of the backrest mechanism; when the driver's vehicle is rear-ended by another vehicle, the motion mechanism drives the moving rod to move away from the rod sleeve, and at the same time, the flipping member drives the backrest mechanism to flip towards the rod sleeve, causing the upper end of the backrest mechanism to actively approach the driver's neck, reducing the harm to the driver's neck when being rear-ended.

[0010] Through the setting of the seat cushion mechanism, when the vehicle rear-ends another vehicle, the motion mechanism can drive the rod sleeve to move backward, causing the driver's legs and buttocks to move backward, reducing the harm to the driver's legs during a collision; and through the setting of the flipping member, the backrest mechanism can be flipped forward during a rear-end collision, reducing the harm to the co-passenger behind; at the same time, through the setting of the moving rod, when the vehicle is rear-ended, the moving rod can move backward, and the flipping member drives the backrest mechanism to flip forward, providing a certain degree of support and protection for the driver's neck. Combined with the setting of the seat belt, the protection of the seat for the driver and co-passengers is improved, and the safety of the seat is enhanced.

[0011] Preferably, the seat cushion mechanism further includes a support member, which includes two air bags symmetrically arranged. A first spring is arranged in the air bag, and two ends of the first spring are respectively connected to the upper and lower ends of the air bag. The tops of the two air bags are fixedly connected to a support plate together. The air bag is communicated with a connecting pipe, and the connecting pipe is communicated with the inner space of the rod sleeve.

[0012] Specifically, during use, when the vehicle is rear-ended, the rod sleeve moves towards the backrest mechanism, causing the moving rod to slide in the rod sleeve, compressing the inner space of the rod sleeve. As a result, the air in the rod sleeve enters the air bag through the connecting pipe, causing the air bag to expand upward and stretching the first spring at the same time. The air bag drives the support plate to move upward, and the support plate lifts the driver's knee joint upward.

[0013] Through the arrangement of the support member, when the vehicle has a rear-end accident and the rod sleeve moves, the moving rod compresses the inner space of the rod sleeve, causing the gas in the rod sleeve to be pressed into the air bag, making the air bag expand. The air bag drives the support plate to move upward, thus lifting the driver's knee joint upward, making it difficult for the driver to step on the accelerator and reducing the possibility of the driver losing consciousness or making an operation error after a car accident, which may lead to a secondary accident.

[0014] Preferably, a support frame is fixedly connected between the two rod sleeves, the support member is arranged on the support frame, and the bottom end of the air bag is fixedly connected to the support frame.

[0015] Through the arrangement of the support frame, the support member can be installed.

[0016] Preferably, one end of the two moving rods away from the rod sleeve is rotatably connected to a hinge shaft, and the backrest mechanism is fixedly sleeved on the hinge shaft. A locking device is arranged between the hinge shaft and the moving rod.

[0017] Specifically, during use, when the inclination angle of the backrest mechanism needs to be adjusted, the locking device is opened, and then the hinge shaft is rotated to adjust the inclination angle of the backrest mechanism. After the adjustment is completed, the locking device is locked.

[0018] Furthermore, the locking device is a prior art and will not be elaborated here.

[0019] Preferably, two turning members are arranged between the hinge shaft and the support frame. The two turning members are centrosymmetrically arranged. The turning member includes a one-way bearing fixedly sleeved on the hinge shaft. A gear is fixedly sleeved on the outer ring of the one-way bearing. A rack is arranged on the support frame, and the rack can be meshed with the gear. The two racks in the two turning members are respectively located on the upper and lower sides of the two gears, and the effective rotation directions of the two one-way bearings in the two turning members are opposite.

[0020] Specifically, when in use, when the vehicle rear-ends another vehicle, the locking device unlocks, the rod sleeve moves towards the backrest mechanism, the rod sleeve drives the rack to move backward, and at the same time the rack meshes with the gear. The rack located on the lower side drives the gear to rotate, and the gear drives the articulated shaft to rotate through the one-way bearing, so that the backrest mechanism flips forward, and at the same time the one-way bearing in the other flipping member idles; when the vehicle is rear-ended by another vehicle, the moving rod moves backward, and at the same time the rack meshes with the gear. The rack located on the upper side drives the gear to rotate, and the gear drives the articulated shaft to rotate through the one-way bearing, so that the backrest mechanism flips forward, and at the same time the one-way bearing in the other flipping member idles.

[0021] Through the central symmetric arrangement of the two flipping members, when the rod sleeve and the moving rod move relatively, whether being rear-ended or rear-ending other vehicles, the backrest mechanism can be made to flip forward to support and protect the driver's neck and provide a certain degree of protection to the rear passengers.

[0022] Preferably, the flipping member further includes a slide rail fixedly connected to the support frame. A slider is slidably connected in the slide rail. A second spring is connected between the slider and the slide rail. The rack is fixedly connected to the slider. A trapezoidal abutting block is fixedly connected to the rack. An inverted trapezoidal contact block is fixedly connected to the moving rod. The inclined surface of the contact block contacts the inclined surface of the abutting block. The abutting block on the lower rack is located in front of the contact block, and the abutting block on the upper rack is located behind the contact block.

[0023] Specifically, when in use, when the rod sleeve and the moving rod move relatively, the positions of the contact block and the abutting block move relatively. The contact block makes the abutting block move towards the gear, the abutting block drives the rack to move, so that the rack meshes with the gear, and at the same time the rack drives the slider to slide in the slide rail and compresses the second spring.

[0024] Through the arrangement of the abutting block and the contact block, in the normal state, the gear and the rack are disengaged from meshing, which is convenient for adjusting the inclination angle of the backrest mechanism during normal use; in the event of an accident, the relative movement of the rod sleeve and the moving rod can make the gear and the rack mesh, which is convenient for automatically adjusting the angle of the backrest mechanism in the event of an accident to protect the driver and passengers.

[0025] Furthermore, an elastic coating layer is covered on the seat cushion mechanism, and an elastic coating layer is covered on the backrest mechanism.

[0026] Through the setting of the elastic coating layer on the seat cushion mechanism, when the rod sleeve and the moving rod move, the coating layer on the seat cushion mechanism can be driven to move, thereby making the driver move.

[0027] Preferably, two motion mechanisms are symmetrically arranged on the lower side of the seat cushion mechanism. The motion mechanism includes an electromagnetic slide rail, in which three electromagnetic sliders are slidably connected. Two of the electromagnetic sliders are fixedly connected to the rod sleeve, and the other electromagnetic slider is fixedly connected to the moving rod.

[0028] Specifically, during use, when the rod sleeve needs to move, activate the two electromagnetic sliders connected to the rod sleeve, so that the electromagnetic sliders drive the rod sleeve to move; when the moving rod needs to move, activate the electromagnetic slider connected to the moving rod, so that the electromagnetic slider drives the moving rod to move.

[0029] Furthermore, the electromagnetic slide rail and the electromagnetic slider are prior art and will not be elaborated here.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] 1. Through the setting of the seat cushion mechanism, when the vehicle rear-ends another vehicle, the motion mechanism can drive the rod sleeve to move backward, causing the driver's legs and buttocks to move backward, reducing the injury to the driver's legs during a collision; and through the setting of the flipping member, the backrest mechanism can be flipped forward during a rear-end collision, reducing the injury to the rear passengers; at the same time, through the setting of the moving rod, when the vehicle is rear-ended, the moving rod moves backward, and through the flipping member, the backrest mechanism is driven to flip forward, providing a certain degree of support and protection for the driver's neck. Combined with the setting of the seat belt, the protection of the seat for the driver and passengers is improved, and the safety of the seat is enhanced.

[0032] 2. Through the setting of the support member, when a rear-end accident occurs to the vehicle, when the rod sleeve moves, the moving rod compresses the internal space of the rod sleeve, causing the gas in the rod sleeve to be pressed into the airbag, causing the airbag to expand. The airbag drives the support plate to lift upward, so that the driver's knee joint is lifted upward, making it difficult for the driver to step on the accelerator, reducing the possibility of the driver losing consciousness or making an operation error leading to a secondary accident after a car accident.

[0033] 3. Through the central symmetry setting of the two flipping members, when the rod sleeve and the moving rod move relative to each other, whether the vehicle is rear-ended or rear-ends another vehicle, the backrest mechanism can be flipped forward, providing support and protection for the driver's neck and a certain degree of protection for the rear passengers.

[0034] 4. Through the setting of the abutting block and the contact block, in the normal state, the gear and the rack are disengaged from meshing, facilitating the adjustment of the inclination angle of the backrest mechanism during normal use; during an accident, through the relative movement of the rod sleeve and the moving rod, the gear and the rack can be engaged, facilitating the automatic adjustment of the angle of the backrest mechanism during an accident to protect the driver and passengers. Brief Description of the Drawings

[0035] Figure 1 Schematic diagram of the three-dimensional state of the present invention Figure 1 ;

[0036] Figure 2 Front view of the present invention;

[0037] Figure 3 For the present invention Figure 2 Isometric sectional view taken along A-A in the present invention;

[0038] Figure 4 For the present invention Figure 2 Isometric sectional view taken along B-B in the present invention;

[0039] Figure 5 For the present invention Figure 4 Partial enlarged view at C in the present invention;

[0040] Figure 6 Right view of the present invention;

[0041] Figure 7 For the present invention Figure 6 Isometric sectional view taken along D-D in the present invention;

[0042] Figure 8 For the present invention Figure 7 Partial enlarged view at E in the present invention;

[0043] Figure 9 Rear view of the present invention;

[0044] Figure 10 For the present invention Figure 9 Isometric sectional view taken along F-F in the present invention;

[0045] Figure 11 For the present invention Figure 9 Isometric sectional view taken along G-G in the present invention;

[0046] Figure 12 For the present invention Figure 10 Partial enlarged view at H in the present invention;

[0047] Figure 13 For the present invention Figure 11 Partial enlarged view at I in the present invention.

[0048] Reference numerals in the figures:

[0049] 1, seat cushion mechanism;

[0050] 11, moving member; 111, rod sleeve; 112, moving rod;

[0051] 12. Flipping member; 121. Gear; 122. Rack; 123. Slide rail; 124. Slide block; 125. Second spring; 126. Contact block; 127. Touching block

[0052] 13. Support member; 131. Airbag; 132. First spring; 133. Support plate; 134. Connecting pipe; 14. Support frame; 15. Hinge shaft

[0053] 2. Backrest mechanism

[0054] 3. Movement mechanism; 31. Electromagnetic slide rail; 32. Electromagnetic slide block Detailed implementation manners

[0055] The following will describe each embodiment of the present invention in detail with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0056] A connecting structure between an automobile seat backrest frame and a seat cushion frame is as shown in Figure 1 、 2 、3. It includes a seat cushion mechanism 1. One end of the seat cushion mechanism 1 is hinged with a backrest mechanism 2. The seat cushion mechanism 1 includes two symmetrically arranged moving members 11. The moving member 11 includes a rod sleeve 111. A moving rod 112 is slidably connected in the rod sleeve 111. One end of the moving rod 112 away from the rod sleeve 111 is hinged with the backrest mechanism 2. A movement mechanism 3 is arranged below the seat cushion mechanism 1. The rod sleeve 111 is connected with the movement mechanism 3. The moving rod 112 is connected with the movement mechanism 3. The seat cushion mechanism 1 further includes a flipping member 12. The flipping member 12 is connected with the backrest mechanism 2. The movement mechanism 3 is electrically connected with a vehicle controller, and the vehicle controller is electrically connected with a collision sensor.

[0057] Specifically, when the driver drives the vehicle to rear-end another vehicle, the movement mechanism 3 drives the rod sleeve 111 to move towards the backrest mechanism 2, so that the driver's legs move backward, reducing the damage caused to the driver when the cockpit collapses during a collision. At the same time, the flipping member 12 drives the backrest mechanism 2 to flip towards the seat cushion mechanism 1, so that the backrest mechanism 2 flips forward, reducing the impact on the head of the co-rider behind the driver by the back of the backrest mechanism 2; when the driver drives the vehicle and is rear-ended by another vehicle, the movement mechanism 3 drives the moving rod 112 to move away from the rod sleeve 111, and at the same time the flipping member 12 drives the backrest mechanism 2 to flip towards the rod sleeve 111, so that the upper end of the backrest mechanism 2 actively approaches the driver's neck, reducing the damage to the driver's neck when being rear-ended.

[0058] Through the setting of the seat cushion mechanism 1, when the vehicle rear-ends another vehicle, the movement mechanism 3 can drive the rod sleeve 111 to move backward, causing the driver's legs and buttocks to move backward, reducing the injury to the driver's legs during a collision; and through the setting of the flipping member 12, the backrest mechanism 2 can be flipped forward during a rear-end collision, reducing the injury to the rear passengers; at the same time, through the setting of the moving rod 112, when the vehicle is rear-ended, the moving rod 112 moves backward, and through the flipping member 12, the backrest mechanism 2 is driven to flip forward, providing a certain degree of support and protection for the driver's neck. Combined with the setting of the seat belt, the protection of the seat for the driver and passengers is improved, and the safety of the seat is enhanced.

[0059] As Figure 2 、 3 As shown in Figures 7 and 8, the seat cushion mechanism 1 further includes a support member 13. The support member 13 includes two symmetrically arranged air bags 131. A first spring 132 is arranged in the air bag 131. The two ends of the first spring 132 are respectively connected to the upper and lower ends of the air bag 131. The tops of the two air bags 131 are fixedly connected to a support plate 133. The air bag 131 is communicated with a connecting pipe 134, and the connecting pipe 134 is communicated with the internal space of the rod sleeve 111.

[0060] Specifically, during use, when the vehicle is rear-ended, the rod sleeve 111 moves in the direction close to the backrest mechanism 2, causing the moving rod 112 to slide in the rod sleeve 111, compressing the internal space of the rod sleeve 111. As a result, the air in the rod sleeve 111 enters the air bag 131 through the connecting pipe 134, causing the air bag 131 to expand upward and stretching the first spring 132 at the same time. The air bag 131 drives the support plate 133 to move upward, and the support plate 133 lifts the driver's knee joint upward.

[0061] Through the setting of the support member 13, when a rear-end collision occurs to the vehicle, when the rod sleeve 111 moves, the moving rod 112 compresses the internal space of the rod sleeve 111, causing the gas in the rod sleeve 111 to be pressed into the air bag 131, causing the air bag 131 to expand. The air bag 131 drives the support plate 133 to lift upward, thereby lifting the driver's knee joint upward, making it difficult for the driver to step on the accelerator and reducing the possibility of a secondary accident caused by the driver losing consciousness or making an operation error after a car accident.

[0062] As Figure 3 、 8 As shown in the figure, a support frame 14 is fixedly connected between the two rod sleeves 111. The support member 13 is arranged on the support frame 14, and the bottom end of the air bag 131 is fixedly connected to the support frame 14.

[0063] The installation of the support member 13 is enabled by the provision of the support frame 14.

[0064] As Figure 3 shown, at one end of the two moving rods 112 away from the rod sleeve 111, there is a hinge shaft 15 rotatably connected. The backrest mechanism 2 is fixedly sleeved on the hinge shaft 15, and a locking device is provided between the hinge shaft 15 and the moving rod 112.

[0065] Specifically, when in use, when it is necessary to adjust the inclination angle of the backrest mechanism 2, the locking device is opened, and then the hinge shaft 15 is rotated so that the inclination angle of the backrest mechanism 2 can be adjusted. After the adjustment is completed, the locking device is locked.

[0066] Furthermore, the locking device is a prior art and will not be elaborated herein.

[0067] As Figure 3 、 12 、13 shown, there are two flipping members 12 provided between the hinge shaft 15 and the support frame 14. The two flipping members 12 are centrosymmetrically arranged. The flipping member 12 includes a one-way bearing fixedly sleeved on the hinge shaft 15. An outer ring of the one-way bearing is fixedly sleeved with a gear 121. A rack 122 is provided on the support frame 14. The rack 122 can be engaged with the gear 121. The two racks 122 in the two flipping members 12 are respectively located on the upper and lower sides of the two gears 121, and the effective rotation directions of the two one-way bearings in the two flipping members 12 are opposite.

[0068] Specifically, when in use, when the vehicle rear-ends another vehicle, the locking device is unlocked, the rod sleeve 111 moves towards the direction close to the backrest mechanism 2, the rod sleeve 111 drives the rack 122 to move backward. At the same time, the rack 122 is engaged with the gear 121. The rack 122 located on the lower side drives the gear 121 to rotate. The gear 121 drives the hinge shaft 15 to rotate through the one-way bearing, so that the backrest mechanism 2 flips forward. At the same time, the one-way bearing in the other flipping member 12 idles; when the vehicle is rear-ended by other vehicles, the moving rod 112 moves backward. At the same time, the rack 122 is engaged with the gear 121. The rack 122 located on the upper side drives the gear 121 to rotate. The gear 121 drives the hinge shaft 15 to rotate through the one-way bearing, so that the backrest mechanism 2 flips forward. At the same time, the one-way bearing in the other flipping member 12 idles.

[0069] Through the centrosymmetric arrangement of the two flipping members 12, when the rod sleeve 111 and the moving rod 112 move relatively, whether being rear-ended or rear-ending other vehicles, it can make the backrest mechanism 2 flip forward to support and protect the neck of the driver and provide a certain degree of protection for the rear co-riders.

[0070] As Figure 12 、13 As shown, the flipping member 12 further includes a slide rail 123 fixedly connected to the support frame 14. A slider 124 is slidably connected in the slide rail 123. A second spring 125 is connected between the slider 124 and the slide rail 123. The rack 122 is fixedly connected to the slider 124. A trapezoidal abutting block 126 is fixedly connected to the rack 122. An inverted trapezoidal contact block 127 is fixedly connected to the moving rod 112. The inclined surface of the contact block 127 contacts the inclined surface of the abutting block 126. The abutting block 126 on the lower rack 122 is located in front of the contact block 127, and the abutting block 126 on the upper rack 122 is located behind the contact block 127.

[0071] Specifically, during use, when the rod sleeve 111 and the moving rod 112 move relative to each other, the positions of the contact block 127 and the abutting block 126 move relative to each other. The contact block 127 causes the abutting block 126 to move towards the gear 121. The abutting block 126 drives the rack 122 to move, causing the rack 122 to mesh with the gear 121. At the same time, the rack 122 drives the slider 124 to slide in the slide rail 123 and compresses the second spring 125.

[0072] Through the arrangement of the abutting block 126 and the contact block 127, in the normal state, the gear 121 is disengaged from the rack 122, which is convenient for adjusting the inclination angle of the backrest mechanism 2 during normal use; in the event of an accident, the relative movement between the rod sleeve 111 and the moving rod 112 can cause the gear 121 to mesh with the rack 122, which is convenient for automatically adjusting the angle of the backrest mechanism 2 in the event of an accident to protect the driver and passengers.

[0073] Furthermore, an elastic coating layer is covered on the seat cushion mechanism 1, and an elastic coating layer is covered on the backrest mechanism 2.

[0074] Through the arrangement of the elastic coating layer on the seat cushion mechanism 1, when the rod sleeve 111 and the moving rod 112 move, the coating layer on the seat cushion mechanism 1 can be driven to move, thereby causing the driver to move.

[0075] As Figure 3 shown, two motion mechanisms 3 are symmetrically arranged on the lower side of the seat cushion mechanism 1. The motion mechanism 3 includes an electromagnetic slide rail 31. Three electromagnetic sliders 32 are slidably connected in the electromagnetic slide rail 31. Two of the electromagnetic sliders 32 are fixedly connected to the rod sleeve 111, and the other electromagnetic slider 32 is fixedly connected to the moving rod 112.

[0076] Specifically, when in use, when the rod sleeve 111 needs to move, activate the two electromagnetic sliders 32 connected to the rod sleeve 111, so that the electromagnetic sliders 32 drive the rod sleeve 111 to move; when the moving rod 112 needs to move, activate the electromagnetic slider 32 connected to the moving rod 112, so that the electromagnetic slider 32 drives the moving rod 112 to move.

[0077] Furthermore, the electromagnetic slide rail 31 and the electromagnetic slider 32 are prior arts and will not be elaborated herein.

[0078] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0079] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed installation, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0080] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A connecting structure between an automobile seat backrest skeleton and a seat cushion skeleton, characterized in that: It includes a seat cushion mechanism (1), one end of the seat cushion mechanism (1) is hinged with a backrest mechanism (2). The seat cushion mechanism (1) includes two symmetrically arranged moving parts (11). The moving part (11) includes a rod sleeve (111), a moving rod (112) is slidably connected in the rod sleeve (111). One end of the moving rod (112) away from the rod sleeve (111) is hinged with the backrest mechanism (2). A motion mechanism (3) is arranged under the seat cushion mechanism (1). The rod sleeve (111) is connected with the motion mechanism (3), and the moving rod (112) is connected with the motion mechanism (3). The seat cushion mechanism (1) further includes a flipping part (12), the flipping part (12) is connected with the backrest mechanism (2). The motion mechanism (3) is electrically connected with a vehicle controller, and the vehicle controller is electrically connected with a collision sensor; The seat cushion mechanism (1) further includes a support part (13). The support part (13) includes two symmetrically arranged air bags (131). A first spring (132) is arranged in the air bag (131). Two ends of the first spring (132) are respectively connected with the upper and lower ends of the air bag (131). The tops of the two air bags (131) are fixedly connected with a support plate (133) together. The air bag (131) is communicated with a connecting pipe (134), and the connecting pipe (134) is communicated with the internal space of the rod sleeve (111).

2. The connecting structure between the backrest frame and the seat cushion frame of an automobile seat according to claim 1, characterized in that, A support frame (14) is fixedly connected between the two rod sleeves (111). The support part (13) is arranged on the support frame (14), and the bottom end of the air bag (131) is fixedly connected with the support frame (14).

3. The connecting structure between the automobile seat backrest skeleton and the seat cushion skeleton according to claim 2, characterized in that, One end of the two moving rods (112) away from the rod sleeve (111) is rotatably connected with a hinge shaft (15). The backrest mechanism (2) is fixedly sleeved on the hinge shaft (15). A locking device is arranged between the hinge shaft (15) and the moving rod (112).

4. A connection structure between an automobile seat backrest frame and a seat cushion frame according to claim 3, characterized in that, Two flipping parts (12) are arranged between the hinge shaft (15) and the support frame (14). The two flipping parts (12) are arranged in central symmetry. The flipping part (12) includes a one-way bearing fixedly sleeved on the hinge shaft (15). An outer ring of the one-way bearing is fixedly sleeved with a gear (121). A rack (122) is arranged on the support frame (14), and the rack (122) can be meshed with the gear (121). The two racks (122) in the two flipping parts (12) are respectively located on the upper and lower sides of the two gears (121). Effective rotation directions of the two one-way bearings in the two flipping parts (12) are opposite.

5. The connecting structure between the backrest frame and the seat cushion frame of an automobile according to claim 4, characterized in that The flipping member (12) further includes a slide rail (123) fixedly connected to the support frame (14). A slider (124) is slidably connected in the slide rail (123). A second spring (125) is connected between the slider (124) and the slide rail (123). The rack (122) is fixedly connected to the slider (124). A trapezoidal abutting block (126) is fixedly connected to the rack (122). An inverted trapezoidal contact block (127) is fixedly connected to the moving rod (112). The inclined surface of the contact block (127) is in contact with the inclined surface of the abutting block (126). The abutting block (126) on the lower rack (122) is located in front of the contact block (127), and the abutting block (126) on the upper rack (122) is located behind the contact block (127).

6. The connection structure between a car seat backrest frame and a seat cushion frame according to claim 5, characterized in that, The seat cushion mechanism (1) is covered with an elastic covering layer, and the backrest mechanism (2) is covered with an elastic covering layer.

7. The connecting structure between the automobile seat backrest frame and the seat cushion frame according to claim 6, characterized in that, Two motion mechanisms (3) are symmetrically arranged on the lower side of the seat cushion mechanism (1). The motion mechanism (3) includes an electromagnetic slide rail (31). Three electromagnetic sliders (32) are slidably connected in the electromagnetic slide rail (31). Two of the electromagnetic sliders (32) are fixedly connected to the rod sleeve (111), and the other electromagnetic slider (32) is fixedly connected to the moving rod (112).

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