Connecting structure for backrest framework and cushion framework of automobile seat

Abstract

The invention relates to the technical field of automobile seat and backrest connection, in particular to an automobile seat backrest framework and cushion framework connecting structure which comprises a cushion mechanism, a backrest mechanism is hinged to one end of the cushion mechanism, the cushion mechanism comprises two symmetrically-arranged moving parts, and each moving part comprises a rod sleeve. A movable rod is slidably connected into the rod sleeve, the end, away from the rod sleeve, of the movable rod is hinged to the backrest mechanism, a movement mechanism is arranged on the lower side of the cushion mechanism, the rod sleeve is connected with the movement mechanism, the movable rod is connected with the movement mechanism, and the cushion mechanism further comprises an overturning piece. The turnover piece is connected with the backrest mechanism, the movement mechanism is electrically connected with a vehicle controller, and the vehicle controller is electrically connected with a collision sensor.

Description

Technical Field

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

[0002] With the development of the automobile industry, the design of car seats is also constantly improving. As one of the components in the car that is directly related to the comfort and safety of passengers, the quality of car seats is of vital importance. Among them, the connection structure between the seat back frame and the seat cushion frame is one of the key factors to ensure the overall stability and ride comfort of the seat. At present, the mainstream car seat designs on the market use a variety of different connection methods to achieve the fixation between the back frame and the seat cushion frame. These methods can be roughly divided into several categories, such as mechanical fastener connection, welding connection and one-piece molding: Mechanical fastener connection: The two parts are tightly connected by means of screws, bolts or rivets. This method is easy to install and disassemble, but long-term use may cause looseness and affect stability. Welding connection: It is suitable for permanent connection between metal materials and has high strength and rigidity. However, welding points are prone to become stress concentration areas, increasing the risk of fracture, and once damaged, it is difficult to repair. One-piece molding: Using a mold to manufacture a complete seat frame at one time can provide the best overall performance. However, this process is complex and costly, and is not suitable for all types of vehicles.

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

[0004] At present, the most important development direction is to improve safety. When a car accident occurs, when a rear-end collision occurs or when a rear-end collision occurs, the driver is very vulnerable to injury. Although protected by seat belts, injuries are still unavoidable. The car seat and backrest are the parts that directly contact the driver. Therefore, it is very necessary to improve the safety of the car seat and backrest.

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

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a connection structure between a car seat back frame and a seat cushion frame, which effectively solves 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] In order to achieve the above object, the technical solution adopted by the present invention is: A connection structure between a car seat backrest frame and a seat cushion frame, comprising a seat cushion mechanism, one end of the seat cushion mechanism is hinged to the backrest mechanism, the seat cushion mechanism comprises two symmetrically arranged moving parts, the moving part comprises a rod sleeve, a moving rod is slidably connected in the rod sleeve, one end of the moving rod away from the rod sleeve is hinged to the backrest mechanism, a motion mechanism is arranged on the lower side of the seat cushion mechanism, the rod sleeve is connected to the motion mechanism, the moving rod is connected to the motion mechanism, the seat cushion mechanism also comprises a flipping member, the flipping member is connected to the backrest mechanism, the motion mechanism is electrically connected to a vehicle controller, and the vehicle controller is electrically connected to a collision sensor.

[0008] Specifically, when the driver drives the vehicle to rear-end another vehicle, the motion mechanism drives the rod sleeve to move in the direction close to the backrest mechanism, so that the driver's legs move backward, thereby reducing the damage to the driver caused by the collapse of the cockpit when the collision occurs. At the same time, the flip part drives the backrest mechanism to flip in the direction close to the cushion mechanism, so that the backrest mechanism flips forward, thereby reducing the impact of the head of the passenger behind the driver on 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 in the direction away from the rod sleeve, and at the same time, the flip part drives the backrest mechanism to flip in the direction close to the rod sleeve, so that the upper end of the backrest mechanism actively approaches the driver's neck, thereby reducing the damage to the driver's neck when being rear-ended.

[0009] Through the setting of the seat cushion mechanism, when the vehicle rear-ends another vehicle, the movement mechanism can drive the rod sleeve to move backward, so that the driver's legs and buttocks move backward, thereby reducing the damage to the driver's legs when the collision occurs; and through the setting of the flip piece, the backrest mechanism can be flipped forward in the event of a rear-end collision, thereby reducing the damage to the rear passengers; 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 backrest mechanism can be driven to flip forward by the flip piece, thereby providing a certain degree of support and protection for the driver's neck, and in combination with the setting of the seat belt, the protection of the seat to the driver and the passengers is improved, and the safety of the seat is improved.

[0010] Preferably, the cushion mechanism also includes a support member, which includes two symmetrically arranged airbags, a first spring is provided in the airbag, two ends of the first spring are respectively connected to the upper and lower ends of the airbag, the top ends of the two airbags are commonly fixedly connected to a support plate, the airbags are connected by a connecting pipe, and the connecting pipe is connected to the internal space of the rod sleeve.

[0011] Specifically, during use, when the vehicle is rear-ended, the rod sleeve moves toward the direction close to the backrest mechanism, causing the movable rod to slide in the rod sleeve, causing the internal space of the rod sleeve to be compressed, thereby allowing the air in the rod sleeve to enter the airbag through the connecting tube, causing the airbag to expand upward and simultaneously stretching the first spring. The airbag drives the support plate to move upward, and the support plate lifts the driver's knee joint upward.

[0012] By setting the support member, when a rear-end collision occurs, the rod sleeve moves and the moving rod compresses the internal space of the rod sleeve, so that the gas in the rod sleeve is pressed into the airbag, causing the airbag to expand. The airbag drives the support plate to lift upward, thereby lifting the driver's knee joint upward, making it difficult for the driver to step on the accelerator, thereby reducing the possibility of a secondary accident caused by the driver losing consciousness or making operational errors after the accident.

[0013] 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 airbag is fixedly connected to the support frame.

[0014] The support member can be installed by setting the support frame.

[0015] Preferably, one end of the two moving rods away from the rod sleeve is rotatably connected to a hinge shaft, the backrest mechanism is fixedly sleeved on the hinge shaft, and a locking device is provided between the hinge shaft and the moving rod.

[0016] Specifically, when the inclination angle of the backrest mechanism needs to be adjusted during use, 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.

[0017] Furthermore, the locking device is a prior art and will not be described in detail.

[0018] Preferably, two flipping members are arranged between the hinge shaft and the support frame, and the two flipping members are arranged in a centrally symmetrical manner. The flipping member includes a one-way bearing fixedly sleeved on the hinge shaft, and the outer ring of the one-way bearing is fixedly sleeved with a gear. A rack is arranged on the support frame, and the rack can engage with the gear. The two racks in the two flipping 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 flipping members are opposite.

[0019] Specifically, during use, when the vehicle rear-ends another vehicle, the locking device is unlocked, the rod sleeve moves toward the direction close to the backrest mechanism, the rod sleeve drives the rack to move backward, and at the same time the rack engages with the gear, the rack located on the lower side drives the gear to rotate, and the gear drives the hinge 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 piece rotates idly; when the vehicle is rear-ended by another vehicle, the moving rod moves backward, and at the same time the rack engages with the gear, the rack located on the upper side drives the gear to rotate, and the gear drives the hinge 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 piece rotates idly.

[0020] The two flipping parts are arranged symmetrically at the center, so that when the rod sleeve and the movable rod move relative to each other, the backrest mechanism can flip forward regardless of being rear-ended or rear-ended by another vehicle, thereby supporting and protecting the driver's neck and providing a certain degree of protection to the rear passengers.

[0021] Preferably, the flip member also 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 abutment 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 abutment block, the abutment block on the lower rack is located in front of the contact block, and the abutment block on the upper rack is located behind the contact block.

[0022] Specifically, during use, when the rod sleeve and the movable rod move relative to each other, the positions of the contact block and the abutment block move relative to each other, the contact block causes the abutment block to move toward the direction close to the gear, the abutment block drives the rack to move, so that the rack engages with the gear, and at the same time the rack drives the slider to slide in the slide rail and compresses the second spring.

[0023] By setting the abutment block and the contact block, the gear and the rack are disengaged in the normal state, which is convenient for adjusting the inclination angle of the backrest mechanism during normal use; in the event of an accident, the gear and the rack can be engaged through the relative movement of the rod sleeve and the moving rod, which is convenient for automatically adjusting the angle of the backrest mechanism in the event of an accident to protect the driver and passengers.

[0024] Furthermore, the seat cushion mechanism is covered with an elastic covering layer, and the backrest mechanism is covered with an elastic covering layer.

[0025] By providing the elastic covering layer on the cushion mechanism, when the rod sleeve and the moving rod move, the covering layer on the cushion mechanism can be driven to move, thereby causing the driver to move.

[0026] Preferably, two motion mechanisms are symmetrically arranged on the lower side of the cushion mechanism, and the motion mechanism includes an electromagnetic slide rail, and three electromagnetic sliders are slidably connected in the electromagnetic slide rail, two of which are fixedly connected to the rod sleeve, and the other electromagnetic slider is fixedly connected to the moving rod.

[0027] Specifically, when in use, when the rod sleeve needs to be moved, the two electromagnetic sliders connected to the rod sleeve are started, so that the electromagnetic sliders drive the rod sleeve to move; when the moving rod needs to be moved, the electromagnetic slider connected to the moving rod is started, so that the electromagnetic slider drives the moving rod to move.

[0028] Furthermore, the electromagnetic slide rail and the electromagnetic slider are prior art and will not be described in detail.

[0029] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the setting of the seat cushion mechanism, when a vehicle rear-ends another vehicle, the movement mechanism can drive the rod sleeve to move backward, so that the driver's legs and buttocks move backward, thereby reducing the damage to the driver's legs when the collision occurs; and through the setting of the flip piece, the backrest mechanism can be flipped forward in the event of a rear-end collision, thereby reducing the damage to the rear passengers; 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 flip piece can drive the backrest mechanism to flip forward, thereby providing a certain degree of support and protection for the driver's neck, and in combination with the setting of the seat belt, the protection of the seat to the driver and the passengers is improved, and the safety of the seat is improved.

[0030] 2. By setting the support member, when a rear-end collision occurs, when the rod sleeve moves, the moving rod compresses the internal space of the rod sleeve, so that the gas in the rod sleeve is pressed into the airbag, causing the airbag to expand. The airbag drives the support plate to lift upward, thereby lifting the driver's knee joint upward, making it difficult for the driver to step on the accelerator, thereby reducing the possibility of a secondary accident caused by the driver losing consciousness or making operational errors after a traffic accident.

[0031] 3. Through the central symmetric arrangement of the two flipping parts, when the rod sleeve and the movable rod move relative to each other, the backrest mechanism can flip forward regardless of being rear-ended or rear-ended by another vehicle, thereby supporting and protecting the driver's neck and providing a certain degree of protection to the rear passengers.

[0032] 4. By setting the abutment block and the contact block, the gear and the rack are disengaged in the normal state, which is convenient for adjusting the inclination angle of the backrest mechanism during normal use; in the event of an accident, the gear and the rack can be engaged through the relative movement of the rod sleeve and the moving rod, which is convenient for automatically adjusting the angle of the backrest mechanism in the event of an accident to protect the driver and passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The three-dimensional state of the present invention is shown in FIG. Figure 1 ; Figure 2 It is a front view of the present invention; Figure 3 For the present invention Figure 2 Isometric section view at AA; Figure 4 For the present invention Figure 2 Isometric section view at the middle BB; Figure 5 For the present invention Figure 4 A partial enlarged view of point C in the middle; Figure 6 It is a right side view of the present invention; Figure 7 For the present invention Figure 6 Isometric section view at mid DD; Figure 8 For the present invention Figure 7 A partial enlarged view of point E in the middle; Fig. 9 It is a rear view of the present invention; Fig.10 For the present invention Fig. 9 Isometric section view at FF; Fig.11 For the present invention Fig. 9 Isometric section view at mid GG; Fig.12 For the present invention Fig.10 A partial enlarged view of the H in the middle; Fig.13 For the present invention Fig.11 A partial enlarged view of point I in the middle.

[0034] Markings in the figure: 1. Seat cushion mechanism; 11. moving part; 111. rod sleeve; 112. moving rod; 12. flip member; 121. gear; 122. rack; 123. slide rail; 124. slider; 125. second spring; 126. abutment block; 127. contact block; 13. Support member; 131. Airbag; 132. First spring; 133. Support plate; 134. Connecting pipe; 14. Support frame; 15. Articulated shaft; 2. Backrest mechanism; 3. Moving mechanism; 31. Electromagnetic slide rail; 32. Electromagnetic slider. DETAILED DESCRIPTION

[0035] The following describes various embodiments of the present invention in detail with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0036] A connection structure between a car seat back frame and a seat cushion frame, such as Figure 1 , 2 3, it includes a cushion mechanism 1, one end of which is hinged to a backrest mechanism 2, the 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, and one end of the moving rod 112 away from the rod sleeve 111 is hinged to the backrest mechanism 2, a motion mechanism 3 is arranged on the lower side of the cushion mechanism 1, the rod sleeve 111 is connected to the motion mechanism 3, the moving rod 112 is connected to the motion mechanism 3, the cushion mechanism 1 also includes a flipping member 12, the flipping member 12 is connected to the backrest mechanism 2, the motion mechanism 3 is electrically connected to a vehicle controller, and the vehicle controller is electrically connected to a collision sensor.

[0037] Specifically, when the driver drives the vehicle and rear-ends another vehicle, the motion mechanism 3 drives the rod sleeve 111 to move in the direction close to the backrest mechanism 2, so that the driver's legs move backward, thereby reducing the damage to the driver caused by the collapse of the cockpit when the collision occurs. At the same time, the flip member 12 drives the backrest mechanism 2 to flip in the direction close to the cushion mechanism 1, so that the backrest mechanism 2 flips forward, thereby reducing the impact of the head of the passenger behind the driver on the back of the backrest mechanism 2; when the driver's vehicle is rear-ended by another vehicle, the motion mechanism 3 drives the moving rod 112 to move in the direction away from the rod sleeve 111, and at the same time, the flip member 12 drives the backrest mechanism 2 to flip in the direction close to the rod sleeve 111, so that the upper end of the backrest mechanism 2 actively approaches the driver's neck, thereby reducing the damage to the driver's neck when being rear-ended.

[0038] By setting the cushion mechanism 1, when the vehicle rear-ends another vehicle, the movement mechanism 3 can drive the rod sleeve 111 to move backward, so that the driver's legs and buttocks move backward, thereby reducing the damage to the driver's legs when the collision occurs; and by setting the flip member 12, the backrest mechanism 2 can be flipped forward when the vehicle rear-ends, thereby reducing the damage to the rear passengers; at the same time, by setting the moving rod 112, the moving rod 112 can be moved backward when the vehicle is rear-ended, and the backrest mechanism 2 can be driven to flip forward by the flip member 12, thereby providing a certain degree of support and protection for the driver's neck. In combination with the setting of the safety belt, the protection of the seat to the driver and the passengers is improved, and the safety of the seat is improved.

[0039] like Figure 2 , 3As shown in Figures 7 and 8, the cushion mechanism 1 also includes a support member 13, and the support member 13 includes two symmetrically arranged air bags 131. A first spring 132 is arranged in the air bag 131, and both ends of the first spring 132 are respectively connected to the upper and lower ends of the air bag 131. The top ends of the two air bags 131 are commonly fixedly connected with a support plate 133. The air bags 131 are connected with a connecting pipe 134, and the connecting pipe 134 is connected to the internal space of the rod sleeve 111.

[0040] Specifically, during use, when the vehicle is rear-ended, the rod sleeve 111 moves toward the direction close to the backrest mechanism 2, so that the movable rod 112 slides in the rod sleeve 111, so that the internal space of the rod sleeve 111 is compressed, so that the air in the rod sleeve 111 enters the airbag 131 through the connecting tube 134, so that the airbag 131 expands upward, and at the same time stretches the first spring 132, the airbag 131 drives the support plate 133 to move upward, and the support plate 133 lifts the driver's knee joint upward.

[0041] By setting the support member 13, when the vehicle has a rear-end collision, when the rod sleeve 111 moves, the moving rod 112 compresses the internal space of the rod sleeve 111, so that the gas in the rod sleeve 111 is pressed into the airbag 131, causing the airbag 131 to expand, and the airbag 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, thereby reducing the possibility of a secondary accident caused by the driver losing consciousness or making an operational error after the accident.

[0042] like Figure 3 , 8 As shown, a support frame 14 is fixedly connected between the two rod sleeves 111 , the support member 13 is disposed on the support frame 14 , and the bottom end of the airbag 131 is fixedly connected to the support frame 14 .

[0043] The support frame 14 is provided so that the support member 13 can be installed.

[0044] like Figure 3 As shown, one end of the two moving rods 112 away from the rod sleeve 111 is rotatably connected to a hinge shaft 15, 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.

[0045] Specifically, when in use, when the tilt angle of the backrest mechanism 2 needs to be adjusted, the locking device is opened, and then the hinge shaft 15 is rotated to adjust the tilt angle of the backrest mechanism 2. After the adjustment is completed, the locking device is locked.

[0046] Furthermore, the locking device is a prior art and will not be described in detail.

[0047] like Figure 3 , 12 As shown in Figures 13, two flipping members 12 are arranged between the hinge shaft 15 and the support frame 14, and the two flipping members 12 are arranged in a central symmetrical manner. The flipping member 12 includes a one-way bearing fixedly sleeved on the hinge shaft 15, and the 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 mesh 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.

[0048] Specifically, during use, when the vehicle rear-ends another vehicle, the locking device is unlocked, the rod sleeve 111 moves toward the direction close to the backrest mechanism 2, the rod sleeve 111 drives the rack 122 to move backward, and at the same time the rack 122 engages 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, and at the same time the one-way bearing in the other flipping member 12 idles; when the vehicle is rear-ended by another vehicle, the moving rod 112 moves backward, and at the same time the rack 122 engages 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, and at the same time the one-way bearing in the other flipping member 12 idles.

[0049] The two flipping members 12 are arranged symmetrically at the center, so that when the rod sleeve 111 and the movable rod 112 move relative to each other, the backrest mechanism 2 can flip forward regardless of being rear-ended by a vehicle or rear-ending another vehicle, thereby supporting and protecting the driver's neck and providing a certain degree of protection to the rear passengers.

[0050] like Fig.12 , 13 As shown, the flip member 12 also 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 abutment 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 abutment block 126, the abutment block 126 on the lower side of the rack 122 is located at the front side of the contact block 127, and the abutment block 126 on the upper side of the rack 122 is located at the rear side of the contact block 127.

[0051] 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 abutment block 126 move relative to each other, and the contact block 127 causes the abutment block 126 to move toward the direction close to the gear 121. The abutment block 126 drives the rack 122 to move, so that the rack 122 engages 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.

[0052] By setting the abutment block 126 and the contact block 127, the gear 121 and the rack 122 are disengaged in the normal state, which is convenient for adjusting the inclination angle of the backrest mechanism 2 in normal use; in the event of an accident, the gear 121 and the rack 122 can be engaged through the relative movement of the rod sleeve 111 and the movable rod 112, 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.

[0053] Furthermore, the seat cushion mechanism 1 is covered with an elastic covering layer, and the backrest mechanism 2 is covered with an elastic covering layer.

[0054] By providing the elastic coating layer on the cushion mechanism 1 , when the rod sleeve 111 and the moving rod 112 move, the coating layer on the cushion mechanism 1 can be driven to move, thereby causing the driver to move.

[0055] like Figure 3 As shown, two motion mechanisms 3 are symmetrically arranged on the lower side of the cushion mechanism 1, and the motion mechanism 3 includes an electromagnetic slide rail 31, and three electromagnetic sliders 32 are slidably connected in the electromagnetic slide rail 31, two of which are fixedly connected to the rod sleeve 111, and the other electromagnetic slider 32 is fixedly connected to the moving rod 112.

[0056] Specifically, during use, when the rod sleeve 111 needs to move, the two electromagnetic sliders 32 connected to the rod sleeve 111 are started, so that the electromagnetic sliders 32 drive the rod sleeve 111 to move; when the moving rod 112 needs to move, the electromagnetic slider 32 connected to the moving rod 112 is started, so that the electromagnetic slider 32 drives the moving rod 112 to move.

[0057] Furthermore, the electromagnetic slide rail 31 and the electromagnetic slider 32 are prior art and will not be described in detail.

[0058] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0059] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixed installation, detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying 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 fall within the protection scope of the present invention.

Claims

1. A connection structure between a car seat back frame and a seat cushion frame, characterized in that: The invention comprises a seat cushion mechanism (1), one end of which is hingedly connected to a backrest mechanism (2), the seat cushion mechanism (1) comprising two symmetrically arranged moving parts (11), the moving part (11) comprising a rod sleeve (111), a moving rod (112) being slidably connected in the rod sleeve (111), an end of the moving rod (112) away from the rod sleeve (111) being hingedly connected to the backrest mechanism (2), a moving mechanism (3) being arranged at the lower side of the seat cushion mechanism (1), the rod sleeve (111) being connected to the moving mechanism (3), the moving rod (112) being connected to the moving mechanism (3), the seat cushion mechanism (1) further comprising a flipping part (12), the flipping part (12) being connected to the backrest mechanism (2), the moving mechanism (3) being electrically connected to a vehicle controller, and the vehicle controller being electrically connected to a collision sensor; The seat cushion mechanism (1) further comprises a support member (13), the support member (13) comprising two symmetrically arranged air bags (131), a first spring (132) being arranged in the air bag (131), two ends of the first spring (132) being respectively connected to upper and lower ends of the air bag (131), the top ends of the two air bags (131) being commonly fixedly connected to a support plate (133), a connecting pipe (134) being arranged in communication with the air bags (131), and the connecting pipe (134) being in communication with the internal space of the rod sleeve (111).

2. The connection structure of a car seat back frame and a seat cushion frame according to claim 1, characterized in that: 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 airbag (131) is fixedly connected to the support frame (14).

3. The connection structure of the automobile seat back frame and the seat cushion frame according to claim 2, characterized in that: One end of the two moving rods (112) away from the rod sleeve (111) is rotatably connected to a hinge shaft (15), 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).

4. The connection structure of the automobile seat back frame and the seat cushion frame according to claim 3, characterized in that: Two flipping members (12) are arranged between the hinge shaft (15) and the support frame (14), the two flipping members (12) are arranged symmetrically with respect to the center, the flipping member (12) comprises a one-way bearing fixedly sleeved on the hinge shaft (15), the outer ring of the one-way bearing is fixedly sleeved with a gear (121), a rack (122) is arranged on the support frame (14), the rack (122) can mesh 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.

5. The connection structure of the automobile seat back frame and the seat cushion frame according to claim 4, characterized in that: The flip member (12) further comprises a slide rail (123) fixedly connected to the support frame (14), a slider (124) being slidably connected in the slide rail (123), a second spring (125) being connected between the slider (124) and the slide rail (123), the rack (122) being fixedly connected to the slider (124), a trapezoidal abutment block (126) being fixedly connected to the rack (122), an inverted trapezoidal contact block (127) being fixedly connected to the moving rod (112), an inclined surface of the contact block (127) being in contact with an inclined surface of the abutment block (126), the abutment block (126) on the lower side of the rack (122) being located at the front side of the contact block (127), and the abutment block (126) on the upper side of the rack (122) being located at the rear side of the contact block (127).

6. The connection structure of the automobile seat back frame and the 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 connection structure of the automobile seat back 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) comprising an electromagnetic slide rail (31), three electromagnetic sliders (32) being slidably connected to the electromagnetic slide rail (31), two of the electromagnetic sliders (32) being fixedly connected to the rod sleeve (111), and the other electromagnetic slider (32) being fixedly connected to the moving rod (112).

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