Car seat anti-impact support device

Abstract

The anti-impact support device for an automobile seat comprises a base, wherein left and right sides of the base are respectively provided with track grooves, connection blocks are slidably connected in the track grooves, a seat is fixedly connected at opposite ends of the two connection blocks, a reinforcement groove is provided at the lower end of the seat, reinforcement plates are slidably connected at the left and right sides of the base, a plurality of reinforcement blocks are fixedly connected at the upper ends of the reinforcement plates, movable plates are slidably connected at the left and right sides of the upper end of the base, a guide block is fixedly connected at the front end of the movable plate, a plurality of limiting grooves are provided at the upper end of the movable plate, a baffle is slidably connected at the upper end of the base, a buffer assembly is fixedly connected at the back ends of each group of two baffles opposite to each other, the lower end of the buffer assembly is fixedly connected to the upper end of the base, a slide cylinder is fixedly connected at the left and right sides of the lower end of the seat, and a limiting plate is slidably connected in the slide cylinder; the present invention can realize secondary locking of the seat, prevent the seat from sliding out of the base, and improve the anti-impact ability of the seat.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, and in particular to an anti-impact supporting device for an automobile seat. Background Art

[0002] As an important part of the interior of a car, car seats are mainly composed of seat cushions, backrests, side back supports, headrests, etc. The design of these components must be consistent with the back curve of the human body in a relaxed state to ensure that after the occupants are seated, the surface shape of the seat and the body pressure distribution can make the occupants' muscles in the most relaxed state. Car seats not only affect the comfort of drivers and passengers, but are also directly related to driving safety. Car seat slides usually include moving guides, fixed guides and locking mechanisms, whose function is to change the front and rear position of the seat and lock the seat. When the car is hit, the car seat tends to move relative to the slide rails under the action of inertia. When the external force is large, the locking structure fails, and the car seat is likely to detach from the slide rails, which can easily cause harm to the occupants.

[0003] Chinese patent (CN106864312B) discloses a locking mechanism for a car seat slide rail, including a movable guide rail, a fixed guide rail and a locking mechanism. The locking mechanism includes a locking claw, a fixing frame, a locking spring, an operating wrench and a fixing bracket. The lower end of the locking claw is provided with a locking tooth, the upper end of the locking claw is provided with a locking claw guide surface, a locking tooth guide hole is provided in the middle of the bottom of the fixing frame, and square holes are provided on both sides. The locking tooth guide hole and the locking tooth guide surface are configured to be clearance-matched. There is a pair of locking springs, which are arranged on the front and rear sides of the locking claw. The movable guide rail is provided with a locking claw guide hole on the upper mounting surface, and the fixed guide rail is provided with locking row holes at intervals at the bottom. The spacing between two adjacent locking row holes matches the spacing between two adjacent locking teeth. The locking strength is high, the synchronization is good, there is no self-locking, the gap is small, the impact resistance is strong, the locking is stable, the reliability is good, and the space occupied is small.

[0004] The locking mechanism of the above-mentioned patent can enhance the impact resistance of the car seat. Its principle is to enhance the stability of the locking structure of the car seat. However, when the car collides, it is subjected to a large external force. When the material of its inherent locking structure is deformed, when the material deformation is large enough, the locking claw will detach from the guide hole and the locking structure will fail. At this time, the car seat will detach from the slide rail, and the car seat will cause the passengers to flip over, posing a safety hazard. The above-mentioned patent only enhances the stability of the locking structure and cannot alleviate or offset the collision force.

[0005] Therefore, the present invention provides an anti-impact support device for a car seat 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 an anti-impact support device for a car seat, which solves the problem that the locking structure of the car seat is prone to locking failure when it is hit, posing a safety hazard.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] The anti-impact support device for a car seat comprises a U-shaped base with an upward opening, track grooves are respectively provided on the left and right sides of the base, the two track grooves have openings facing each other, connection blocks are slidably connected in the track grooves, a seat is fixedly connected to the opposite ends of the two connection blocks, a plurality of reinforcement grooves with downward openings are provided at the lower end of the seat, reinforcement plates are respectively slidably connected on the left and right sides of the base, a plurality of reinforcement blocks are fixedly connected to the upper ends of the reinforcement plates, the reinforcement blocks can be inserted into the reinforcement grooves, trapezoidal movable plates are respectively slidably connected on the left and right sides of the upper end of the base, a guide block is fixedly connected to the front end of the movable plate, the front end of the guide block is located below the reinforcement plate, and the upper end of the guide block is an inclined surface with a lower front and a higher rear;

[0009] The upper end of the movable plate is provided with a plurality of limit grooves with openings facing upward and evenly distributed in the front and rear directions. The left and right sides of the movable plate are inclined surfaces. The area of ​​the front end surface of the movable plate is smaller than the area of ​​the rear end surface. Two groups of left and right opposing baffles are slidably connected to the upper end of the base. The opposite ends of the two left and right opposing baffles in each group can respectively contact the inclined surfaces of the movable plates on their corresponding sides. The back ends of the two left and right opposing baffles in each group are respectively fixedly connected with buffer components. The lower end of the buffer component is fixedly connected to the upper end of the base. The left and right sides of the lower end of the seat are respectively fixedly connected with sliding cylinders with openings facing downward. The limiting plates are slidably connected in the sliding cylinders, and the limiting plates can move up and down.

[0010] Preferably, the front and rear sides of the lower end of the seat are respectively fixedly connected with fixed blocks, the front fixed block is provided with a slot opening facing forward, the two fixed blocks are rotatably connected with a front-to-rear axial rotating shaft, the rotating shaft is provided with a slide groove opening facing forward, a sliding rod is slidably connected in the slide groove via a spline, the front end of the sliding rod is fixedly connected with a handle, the rear end of the handle is fixedly connected with a block inserted into the slot, and the rear end of the sliding rod is connected to the side wall of the slide groove via a second spring.

[0011] Preferably, the base is provided with a sliding groove with an opening facing upward and in the front-to-back direction, the lower end of the movable plate is fixedly connected with a sliding block, the lower end of the sliding block is slidably connected to the sliding groove, and the front end of the sliding block is connected to the side wall of the sliding groove via a first spring.

[0012] Preferably, the upper end of the base is fixedly connected to a fixed plate located directly below the rotating shaft and in the front-to-back direction, the fixed plate is provided with a plurality of arc grooves evenly distributed along the front-to-back direction and opening upward, and the rotating shaft is fixedly connected to a plurality of arc plates, which can be inserted into the arc grooves.

[0013] Preferably, the lower end of the reinforcement plate is slidably connected to the base via multiple circular shafts, and locking grooves are respectively provided on the left and right side walls of the base, and the two locking grooves are opened opposite to each other. A movable groove is provided on the reinforcement plate, and the two movable grooves are opened back to back. A locking plate is slidably connected in the movable groove, and a vertical groove is provided on the locking plate that runs through the upper and lower parts, and a vertical block is slidably connected in the vertical groove. The lower end of the vertical block is fixedly connected to the base, and the upper end of the vertical block is fixedly connected to a push block, the opposite ends of the two push blocks are inclined surfaces, the distance between the lower ends of the inclined surfaces of the two push blocks is smaller than the distance between their upper ends, and the inclined surfaces of the push blocks can contact the side walls of the vertical grooves.

[0014] Preferably, the buffer assembly includes a left and right axial cylinder, a piston cylinder is coaxially fixedly connected inside the cylinder, the piston cylinder is filled with viscous damping liquid, a plurality of extrusion holes that penetrate inside and outside are opened on the piston cylinder, a piston plate is slidably connected inside the piston cylinder, a sliding shaft is fixedly connected to the free end of the piston plate, and the free end of the sliding shaft is fixedly connected to the baffle on its corresponding side.

[0015] Preferably, the two limit plates are respectively provided with inclined grooves opening toward the rear, and the two inclined grooves are distributed in an inverted figure-eight shape. The slide cylinder is provided with a transverse groove opening toward the rear and in the left and right directions. A sliding column is slidably connected in the transverse groove. The front end of the sliding column is inserted into the inclined groove, and the rear end of the sliding column extends out of the transverse groove on the corresponding side, so that the sliding column can move left and right.

[0016] Preferably, the rear end of the rotating shaft is coaxially fixedly connected with a turntable, the rear ends of the two slide cylinders are slidably connected with T-shaped rods via slide rails, the free ends of the T-shaped rods are hingedly connected to the turntable via rocker arms, and the opposite ends of the two T-shaped rods are fixedly connected to the sliding columns on their corresponding sides.

[0017] The beneficial effects of the present invention are:

[0018] 1. When the front and rear positions of the seats need to be adjusted, the limit on the rotating shaft is released, and the position of the seats can be adjusted separately. At this time, the secondary locking structure will not be triggered. When the car is hit and the locking structure is deformed due to external force, resulting in locking failure, the force of the seat moving forward will drive the moving plate to move forward, and the moving plate will drive the reinforcement plate to move upward when it moves forward. The reinforcement plate can drive the reinforcement block to be inserted into the reinforcement groove under the seat, and the seat is locked for a second time to prevent the seat from sliding out of the base, thereby improving the stability of the seat when the car is hit and avoiding damage to the passengers.

[0019] 2. When the secondary locking mechanism is driven, the impact force of the seat in the front and rear directions pushes the baffles on the left and right sides to move through the moving plate, and the baffles drive the sliding shaft and the piston plate to move. The piston plate pushes the damping liquid in the piston box to move into the cylindrical cavity through the extrusion hole. The damping liquid, as a damping medium, converts mechanical energy into heat energy during high-speed flow, thereby playing a buffering role. Part of the impact force is consumed by the buffer component, which can convert and decompose the impact force of the seat in the front and rear directions into the left and right directions and consume it. At the same time, the impact force is used to make the locking plate in the reinforcement plate extend out and connect with the locking groove on the seat, further improving the stability of the locking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an axonometric drawing of the present invention.

[0021] Figure 2 It is a partially cut-away left axonometric view of the present invention.

[0022] Figure 3 It is a schematic structural diagram of the limiting shaft and the limiting plate of the present invention.

[0023] Figure 4 It is a partially cut-away left axonometric view of the present invention.

[0024] Figure 5 It is a cutaway top axonometric view of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the locking plate and the guide block in the present invention.

[0026] Figure 7 It is a schematic structural diagram of the turntable and the T-shaped rod in the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the limiting plate and the inclined groove in the present invention.

[0028] Fig. 9 It is a cutaway top axonometric view of the present invention.

[0029] Fig.10 It is a schematic structural diagram of the reinforcing plate and the locking groove in the present invention.

[0030] Fig.11 For the present invention Figure 4 A is an enlarged view of the middle image.

[0031] Fig.12 For the present invention Fig. 9 Enlarged view of B.

[0032] In the figure: 1, base; 2, track groove; 3, connecting block; 4, seat; 5, reinforcement groove; 6, reinforcement plate; 7, reinforcement block; 8, moving plate; 9, guide block; 10, limit groove; 11, baffle; 12, slide cylinder; 13, limit plate; 14, fixed block; 15, rotating shaft; 16, slide rod; 17, handle; 18, block; 19, second spring; 20, sliding groove; 21, sliding block; 22, first Spring; 23, fixed plate; 24, arc groove; 25, arc plate; 26, round shaft; 27, locking groove; 28, locking plate; 29, vertical groove; 30, vertical block; 31, push block; 32, cylinder; 33, piston cylinder; 34, extrusion hole; 35, piston plate; 36, sliding shaft; 37, inclined groove; 38, horizontal groove; 39, sliding column; 40, turntable; 41, T-bar; 42, rocker arm; 43, slide rail. DETAILED DESCRIPTION

[0033] The following will refer to Figure 1-Figure 12 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art 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.

[0034] Car seat anti-impact support device, such as Figure 1-Figure 12 As shown, it includes a U-shaped base 1 with an upward opening, a track groove 2 is respectively opened on the left and right sides of the base 1, and the openings of the two track grooves 2 are opposite to each other. A connecting block 3 is slidably connected in the track groove 2, and a seat 4 is fixedly connected to the opposite ends of the two connecting blocks 3. A plurality of reinforcement grooves 5 with downward openings are opened at the lower end of the seat 4, and a reinforcement plate 6 is slidably connected to the left and right sides of the base 1. A plurality of reinforcement blocks 7 are fixedly connected to the upper end of the reinforcement plate 6, and the reinforcement block 7 can be inserted into the reinforcement groove 5. A trapezoidal moving plate 8 is slidably connected to the left and right sides of the upper end of the base 1, and a guide block 9 is fixedly connected to the front end of the moving plate 8. The front end of the guide block 9 is located below the reinforcement plate 6, and the upper end of the guide block 9 is an inclined surface with a lower front and a higher rear;

[0035] The upper end of the movable plate 8 is provided with a plurality of limit grooves 10 with openings facing upward and evenly distributed along the front and rear directions. The left and right sides of the movable plate 8 are inclined surfaces. The area of ​​the front end surface of the movable plate 8 is smaller than the area of ​​the rear end surface. Two groups of left and right opposing baffles 11 are slidably connected to the upper end of the base 1. The opposite ends of each group of left and right opposing baffles 11 can respectively contact the inclined surfaces of the movable plate 8 on their corresponding sides. The back ends of each group of left and right opposing baffles 11 are respectively fixedly connected with buffer components. The lower end of the buffer component is fixedly connected to the upper end of the base 1. The left and right sides of the lower end of the seat 4 are respectively fixedly connected with slide cylinders 12 with openings facing downward. The slide cylinders 12 are slidably connected with limit plates 13, and the limit plates 13 can move up and down.

[0036] like Figure 1 and Figure 2As shown, the front and rear sides of the lower end of the seat 4 are fixedly connected with fixed blocks 14 respectively, and a groove opening toward the front is provided on the front fixed block 14, and a front-rear axial rotating shaft 15 is rotatably connected to the two fixed blocks 14, and a sliding groove opening toward the front is provided on the rotating shaft 15, and a sliding rod 16 is slidably connected in the sliding groove via a spline, and a handle 17 is fixedly connected to the front end of the sliding rod 16, and a block 18 inserted into the groove is fixedly connected to the rear end of the handle 17, and the rear end of the sliding rod 16 is connected to the side wall of the groove via a second spring 19; when it is necessary to release the limit on the rotating shaft 15, the handle 17 is pulled to move forward, and the handle 17 drives the sliding rod 16 to move forward and stretch the second spring 19, and the handle 17 drives the block 18 to move out of the groove to release the limit on the rotating shaft 15, and the rotating shaft 15 can rotate at this time.

[0037] like Figure 4 As shown, the base 1 is provided with a sliding groove 20 with an opening facing upward and in the front-to-back direction, and a sliding block 21 is fixedly connected to the lower end of the movable plate 8. The lower end of the sliding block 21 is slidably connected to the sliding groove 20, and the front end of the sliding block 21 is connected to the side wall of the sliding groove 20 via a first spring 22; under the action of the first spring 22, the sliding block 21 drives the movable plate 8 to be located at the extreme position on the rear side, and when the movable plate 8 moves forward, the movable plate 8 drives the sliding block 21 to move forward in the sliding groove 20 and compresses the first spring 22, and the first spring 22 plays a role in limiting the initial position of the movable plate 8, and when the first spring 22 is compressed, the elastic deformation of the first spring 22 can offset part of the impact force, thereby improving the impact resistance of the seat 4.

[0038] like Figure 2 and Figure 3 As shown, the upper end of the base 1 is fixedly connected to a fixing plate 23 located just below the rotating shaft 15 and in the front-to-back direction, and a plurality of arc-shaped grooves 24 are opened on the fixing plate 23 and are evenly distributed in the front-to-back direction and open upward, and a plurality of arc-shaped plates 25 are fixedly connected to the rotating shaft 15, and the arc-shaped plates 25 can be inserted into the arc-shaped grooves 24; when it is necessary to adjust the position of the seat 4 front and back, the handle 17 is rotated, and the handle 17 drives the arc-shaped plate 25 to move out of the arc-shaped groove 24 through the rotating shaft 15, thereby releasing the limit on the seat 4, and pulling the seat 4 to move back and forth, so as to realize the adjustment of the front and back position of the seat 4; when the front and back position of the seat 4 is appropriate, the rotating shaft 15 drives the arc-shaped plate 25 to swing into the arc-shaped groove 24, and the handle 17 drives the block 18 to be inserted into the groove under the action of the slide bar 16 and the second spring 19, and the adjusted seat 4 is limited again.

[0039] like Figure 6 and Fig.10As shown, the lower end of the reinforcement plate 6 is slidably connected to the base 1 via a plurality of circular shafts 26, and locking grooves 27 are respectively provided on the left and right side walls of the base 1, and the two locking grooves 27 are opened opposite to each other, and a moving groove is provided on the reinforcement plate 6, and the two moving grooves are opened back to back, and a locking plate 28 is slidably connected in the moving groove, and a vertical groove 29 that runs through the upper and lower parts is provided on the locking plate 28, and a vertical block 30 is slidably connected in the vertical groove 29, and the lower end of the vertical block 30 is fixedly connected to the base 1, and a push block 31 is fixedly connected to the upper end of the vertical block 30, and the two push blocks 31 are fixedly connected. 1 are inclined surfaces at opposite ends, the distance between the lower ends of the inclined surfaces of the two push blocks 31 is smaller than the distance between the upper ends thereof, and the inclined surfaces of the push blocks 31 can contact the side walls of the vertical slots 29; when the reinforcing plate 6 drives the locking plate 28 to move upward, the locking plate 28 drives the vertical slots 29 to move upward, and the inclined surfaces of the push blocks 31 push the locking plate 28 to be inserted into the locking slots 27 on the corresponding side thereof, so that the locking slots 27 limit the locking plate 28 in the front-to-back direction, thereby preventing the reinforcing plate 6 from moving in the front-to-back direction relative to the base 1 when the car collides.

[0040] like Figure 5 As shown, the buffer assembly includes a left and right axial cylinder 32, a piston cylinder 33 is coaxially fixedly connected inside the cylinder 32, the piston cylinder 33 is filled with viscous damping liquid, a plurality of extrusion holes 34 that penetrate inside and outside are opened on the piston cylinder 33, a piston plate 35 is slidably connected inside the piston cylinder 33, a sliding shaft 36 is fixedly connected to the free end of the piston plate 35, and the free end of the sliding shaft 36 is fixedly connected to the baffle 11 on its corresponding side; when the car is hit, the movable plate 8 moves forward under the action of inertia, pushing the two baffles 11 to move away from each other, the baffle 11 drives the two sliding shafts 36 to move away from each other, so that the piston plate 35 moves in the piston cylinder 33, the piston plate 35 pushes the damping liquid in the piston box to move into the cavity of the cylinder 32 through the extrusion hole 34, and the damping liquid, as a damping medium, converts mechanical energy into heat energy consumption during high-speed flow, thereby playing a buffering role.

[0041] like Figure 8 , Fig. 9 and Fig.12 As shown, the two limit plates 13 are respectively provided with inclined grooves 37 opening toward the rear, and the two inclined grooves 37 are distributed in an inverted eight-shaped shape. The slide cylinder 12 is provided with a transverse groove 38 opening toward the rear and in the left and right directions. A sliding post 39 is slidably connected in the transverse groove 38. The front end of the sliding post 39 is inserted into the inclined groove 37, and the rear end of the sliding post 39 extends out of the transverse groove 38 on its corresponding side, and the sliding post 39 can move left and right; when the two sliding posts 39 move away from each other in the transverse groove 38, the sliding post 39 pushes the limit plate 13 to move upward relative to the slide cylinder 12 through the inclined groove 37, so that the limit plate 13 moves out of the limit groove 10, and the limit plate 13 is out of contact with the limit groove 10. When the two sliding posts 39 move relatively in the transverse groove 38, the sliding post 39 drives the limit plate 13 to move downward relative to the slide cylinder 12 through the inclined groove 37, so that the limit plate 13 is inserted into the limit groove 10.

[0042] like Figure 4 , Figure 7 and Fig.11 As shown, the rear end of the rotating shaft 15 is coaxially fixedly connected with a rotating disk 40, and the rear ends of the two slide cylinders 12 are slidably connected with T-shaped rods 41 via slide rails 43 respectively. The free ends of the T-shaped rods 41 are hingedly connected to the rotating disk 40 via a swing rod 42, and the opposite ends of the two T-shaped rods 41 are fixedly connected to the sliding columns 39 on their corresponding sides; when the rotating shaft 15 drives the rotating disk 40 to rotate clockwise, the rotating disk 40 drives the two T-shaped rods 41 to move relative to each other via the swing rod 42, and the T-shaped rod 41 drives the two sliding columns 39 to slide relative to each other in the transverse groove 38; when the rotating shaft 15 drives the rotating disk 40 to rotate counterclockwise, the rotating disk 40 drives the two T-shaped rods 41 to move away from each other via the swing rod 42, and the T-shaped rod 41 drives the two sliding columns 39 to move away from each other in the transverse groove 38, that is, when the rotating shaft 15 rotates to release the limit on the seat 4, the limit plate 13 is separated from the fixed connection with the movable plate 8, and the seat 4 moves alone when the seat 4 is adjusted.

[0043] When the present invention is in use, its initial state is that the moving plate 8 moves backward to the limit position under the action of the sliding block 21 and the first spring 22, the rotating shaft 15 drives the arc plate 25 to be inserted into the arc groove 24, the rotating shaft 15 drives the two T-shaped rods 41 to move back to the limit position through the turntable 40, the limiting plate 13 is inserted into the limiting groove 10, the position of the seat 4 and the moving plate 8 is fixed, when the passenger needs to adjust the front and rear position of the seat 4, the handle 17 is pulled forward to move, the handle 17 drives the slide bar 16 to move forward and stretch the second spring 19, the handle 17 drives the card block 18 to move out of the card slot, releases the limit on the rotating shaft 15, and the handle 17 is rotated clockwise. The handle 17 drives the rotating shaft 15 to rotate clockwise through the slide bar 16 and the spline, and the rotating shaft 15 drives the arc block to swing clockwise and move The arc groove 24 is out, and the limit of the rotating shaft 15 is released. At the same time, the rotating shaft 15 drives the rotating disk 40 to rotate clockwise. The rotating disk 40 drives the two T-shaped rods 41 to move relatively through the swing rod 42. The T-shaped rod 41 drives the two sliding posts 39 to slide relatively in the transverse groove 38. The sliding post 39 on the left moves to the right in the oblique groove 37 on the left, and the sliding post 39 on the right moves to the left in the oblique groove 37 on the right. Under the joint force of the sliding post 39 and the oblique groove 37, the limit plate 13 moves upward out of the limit groove 10, and the seat 4 is moved forward and backward at this time. The seat 4 drives the connecting block 3 to move forward and backward in the track groove 2 to adjust the front and rear position of the seat 4. During this adjustment process, because the limit plate 13 moves out of the limit groove 10, the front and rear movement of the seat 4 will not drive the moving plate 8 to move forward and backward.

[0044] When the front and rear positions of the seat 4 are adjusted to a suitable position, the handle 17 is turned counterclockwise, and the handle 17 drives the rotating shaft 15 to rotate counterclockwise via the slide bar 16 and the spline, and the rotating shaft 15 drives the arc plate 25 to rotate counterclockwise into the arc groove 24. At this time, the handle 17 drives the clamping block 18 to rotate to the clamping groove, and the handle 17 drives the clamping block 18 to insert into the clamping groove under the action of the slide bar 16 and the second spring 19, so as to limit the rotating shaft 15. At the same time, the rotating shaft 15 drives the rotating disk 40 to rotate counterclockwise to the initial position, and the rotating disk 40 drives the two T-shaped rods 41 to move back to each other via the rocker rod 42, and the T-shaped rod 41 drives the two sliding columns 39 to move back to each other in the transverse groove 38. Under the joint action of the sliding column 39 and the inclined groove 37, the limiting plate 13 is inserted downward into the corresponding limiting groove 10. At this time, the seat 4 is fixedly connected with the movable plate 8 through the slide cylinder 12, the limiting plate 13 and the limiting groove 10;

[0045] When the car is hit, the seat 4 slides forward relative to the base 1 under the force of inertia, and the seat 4 drives the rotating shaft 15 to move forward. When the arc plate 25 is deformed under a sufficiently large force, the arc plate 25 is no longer inserted into the arc groove 24. At this time, the basic limit fails, and the seat 4 drives the slide 12 and the limit plate 13 to move forward. The limit plate 13 drives the moving plate 8 to move forward through the limit groove 10. The moving plate 8 drives the sliding block 21 to move forward in the sliding groove 20 and compresses the first spring 22. When the moving plate 8 moves forward, the moving plate 8 The inclined surfaces on the left and right sides push the two baffles 11 to move in opposite directions when moving forward. The baffles 11 drive the piston plates 35 on the corresponding sides to move through the sliding shaft 36. The piston plates 35 push the damping liquid in the piston box to move into the cavity of the cylinder 32 through the extrusion hole 34. The damping liquid, as a damping medium, converts mechanical energy into heat energy consumption during the high-speed flow process, thereby playing a buffering role. A part of the impact force is consumed by the buffer component, which can convert and decompose the impact force received by the seat 4 in the front and rear directions to the left and right directions and convert the mechanical energy into heat energy consumption.

[0046] At the same time, the moving plate 8 drives the guide block 9 to move forward, and the inclined surface of the upper end of the guide block 9 pushes the reinforcement plate 6 to move upward when moving forward. When the reinforcement plate 6 drives the locking plate 28 to move upward, the locking plate 28 drives the vertical slot 29 to move upward, and the inclined surface of the push block 31 pushes the locking plate 28 to be inserted into the locking slot 27 on its corresponding side, so that the locking slot 27 limits the locking plate 28 in the front and rear directions, preventing the reinforcement plate 6 from moving forward and backward relative to the base 1 when the car collides. In the process of the reinforcement plate 6 moving upward, the seat 4 slides forward relative to the base 1. In the process of the reinforcement plate 6 sliding upward, the reinforcement plate 6 drives the reinforcement block 7 to be inserted upward into the reinforcement slot 5, and the seat 4 is locked for the second time to avoid the seat 4 is separated from the base 1, causing harm to the occupant. A part of the force of the impact on the seat 4 in the front and rear directions is decomposed into the force for the reinforcement plate 6 to move upward, so that the force of the impact on the seat 4 is converted into the power for the reinforcement plate 6 to move upward. When the reinforcement plate 6 moves upward, it is reinforced and connected with the base 1 again in the left and right directions through the locking plate 28 and the locking groove 27. At the same time, the reinforcement plate 6 drives the reinforcement block 7 in the up and down directions to insert into the reinforcement groove 5 to lock the seat 4. The force generated during the impact is used to decompose the force generated during the impact in the left and right and up and down directions, and a part of it is converted into the locking force for the seat 4, which weakens the impact force and ensures the stability between the seat 4 and the base 1, thereby improving the safety of passengers.

[0047] 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.

[0048] 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 a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of 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.

[0049] 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. An anti-impact support device for a car seat, comprising a U-shaped base (1) with an opening facing upward, It is characterized in that The base (1) is provided with track grooves (2) on the left and right sides respectively, the two track grooves (2) are opened opposite to each other, a connection block (3) is slidably connected in the track grooves (2), a seat (4) is fixedly connected to the opposite ends of the two connection blocks (3), a plurality of reinforcement grooves (5) with openings facing downward are provided at the lower end of the seat (4), a reinforcement plate (6) is slidably connected to the left and right sides respectively, a plurality of reinforcement blocks (7) are fixedly connected to the upper end of the reinforcement plate (6), and the reinforcement block (7) can be inserted into the reinforcement groove (5), a trapezoidal movable plate (8) is slidably connected to the left and right sides respectively at the upper end of the base (1), a guide block (9) is fixedly connected to the front end of the movable plate (8), the front end of the guide block (9) is located below the reinforcement plate (6), and the upper end of the guide block (9) is an inclined surface with a lower front and a higher rear; The upper end of the movable plate (8) is provided with a plurality of limit grooves (10) with openings facing upward and uniformly distributed along the front-to-back direction. The movable plate (8) has inclined surfaces on both sides. The area of ​​the front end surface of the movable plate (8) is smaller than the area of ​​the rear end surface. The upper end of the base (1) is slidably connected with two groups of left and right opposing baffles (11). The opposite ends of each group of left and right opposing baffles (11) can respectively contact the inclined surfaces of the movable plate (8) on the corresponding sides. The opposite ends of each group of left and right opposing baffles (11) are respectively fixedly connected with buffer components. The lower end of the buffer component is fixedly connected with the upper end of the base (1). The left and right sides of the lower end of the seat (4) are respectively fixedly connected with slide cylinders (12) with openings facing downward. The slide cylinders (12) are slidably connected with limit plates (13). The limit plates (13) can move up and down.

2. The anti-impact support device for a car seat according to claim 1, It is characterized in that The front and rear sides of the lower end of the seat (4) are respectively fixedly connected with fixed blocks (14), the front fixed block (14) is provided with a slot opening forward, the two fixed blocks (14) are rotatably connected with a front and rear axial rotating shaft (15), the rotating shaft (15) is provided with a sliding groove opening forward, a sliding rod (16) is slidably connected in the sliding groove via a spline, the front end of the sliding rod (16) is fixedly connected with a handle (17), the rear end of the handle (17) is fixedly connected with a block (18) inserted into the slot, and the rear end of the sliding rod (16) is connected to the side wall of the slot via a second spring (19).

3. The anti-impact support device for a car seat according to claim 1, It is characterized in that The base (1) is provided with a sliding groove (20) with an opening facing upward and in a front-to-back direction. A sliding block (21) is fixedly connected to the lower end of the movable plate (8). The lower end of the sliding block (21) is slidably connected to the sliding groove (20). The front end of the sliding block (21) is connected to the side wall of the sliding groove (20) via a first spring (22).

4. The anti-impact support device for a car seat according to claim 1, It is characterized in that The upper end of the base (1) is fixedly connected to a fixing plate (23) located directly below the rotating shaft (15) and in the front-to-back direction; the fixing plate (23) is provided with a plurality of arc-shaped grooves (24) evenly distributed in the front-to-back direction and opening upward; the rotating shaft (15) is fixedly connected to a plurality of arc-shaped plates (25); the arc-shaped plates (25) can be inserted into the arc-shaped grooves (24).

5. The anti-impact support device for a car seat according to claim 1, It is characterized in that The lower end of the reinforcing plate (6) is slidably connected to the base (1) via a plurality of circular shafts (26); locking grooves (27) are respectively provided on the left and right side walls of the base (1); the openings of the two locking grooves (27) are opposite to each other; a moving groove is provided on the reinforcing plate (6); the openings of the two moving grooves are opposite to each other; a locking plate (28) is slidably connected in the moving groove; a vertical groove (29) is provided on the locking plate (28) and passes through the vertical groove; a vertical block (30) is slidably connected in the vertical groove (29); the lower end of the vertical block (30) is fixedly connected to the base (1); the upper end of the vertical block (30) is fixedly connected to a push block (31); the opposite ends of the two push blocks (31) are inclined surfaces; the distance between the lower ends of the inclined surfaces of the two push blocks (31) is smaller than the distance between the upper ends thereof; the inclined surfaces of the push blocks (31) can contact the side walls of the vertical groove (29).

6. The anti-impact support device for a car seat according to claim 1, It is characterized in that The buffer assembly comprises a left-right axial cylinder (32), a piston cylinder (33) coaxially fixedly connected inside the cylinder (32), the piston cylinder (33) is filled with viscous damping liquid, a plurality of extrusion holes (34) penetrating inside and outside are formed on the piston cylinder (33), a piston plate (35) is slidably connected inside the piston cylinder (33), a sliding shaft (36) is fixedly connected to the free end of the piston plate (35), and the free end of the sliding shaft (36) is fixedly connected to the baffle plate (11) on the corresponding side thereof.

7. The anti-impact support device for a car seat according to claim 1, It is characterized in that The two limit plates (13) are respectively provided with oblique grooves (37) with openings facing backwards, and the two oblique grooves (37) are distributed in an inverted eight-shaped shape. The slide cylinder (12) is provided with a transverse groove (38) with openings facing backwards and in left and right directions. A sliding column (39) is slidably connected in the transverse groove (38). The front end of the sliding column (39) is inserted into the oblique groove (37), and the rear end of the sliding column (39) extends out of the transverse groove (38) on the corresponding side. The sliding column (39) can move left and right.

8. The anti-impact support device for a car seat according to claim 2, It is characterized in that The rear end of the rotating shaft (15) is coaxially fixedly connected to a rotating disk (40), the rear ends of the two slide cylinders (12) are slidably connected to T-shaped rods (41) via slide rails (43), the free ends of the T-shaped rods (41) are hingedly connected to the rotating disk (40) via swing rods (42), and the opposite ends of the two T-shaped rods (41) are fixedly connected to the sliding columns (39) on the corresponding sides thereof.

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