Child anti-collision structure for subway

Abstract

The invention belongs to the technical field of child protection, and particularly relates to a subway child anti-collision structure. According to the technical scheme, a back plate is vertically arranged, a fixing plate is vertically fixed to the rear side of the back plate, a seat plate is hinged to the bottom of the back plate, a limiting assembly for limiting the seat plate to rotate within 90 degrees is arranged at the lower end of the back plate, body protection plates are vertically fixed to the left end and the right end of the back plate, and first through grooves are formed in the connecting positions of the back plate and the body protection plates; and a storage assembly for folding and storing the rotating seat plate is arranged on the fixed plate. According to the invention, the seat plate in a vertical state is rotated to a horizontal state, a child is held up and placed on the seat plate, the hip of the child is limited to slide back and forth on the seat plate through the mutual cooperation of the second through groove and the convex edge, and the arms of the child are supported through the armrests and the body protection plate, so that the child is prevented from being injured due to inertial impact; the seat plate is rotated from a horizontal state to a vertical state, and the hanging ring is limited by the first hook, so that the seat plate and the back plate are kept in an overlapped storage state.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of child protection, and particularly relates to a subway child anti-collision structure. BACKGROUND

[0002] The subway has won the favor of the majority of passengers with its high efficiency and rapidity, and has become the first choice of the public transport mode for most people in daily travel. In the public transport network of major cities, the subway shoulders the important responsibility of transporting a large number of passenger flows.

[0003] At present, the row combined seat design is generally used in the subway car. However, this design is mainly based on the body characteristics and the riding needs of adults, and there are many mismatches for children. Specifically, the width of the seat is set according to the adult body size standard, and the child will feel too spacious after sitting on it, and the body lacks necessary support and stability. When the subway starts, brakes or runs with inertia, the child's body is easy to swing left and right, and even may directly collide with the subway handrail, thereby bringing safety hazards.

[0004] In addition, the height of the seat is also designed with reference to the average height of adults. Since the height of children is relatively low, after sitting on it, the feet often cannot reach the ground, and can only be suspended in the air or support with difficulty, which not only easily makes the child feel tired and uncomfortable, but also easily slides forward in the process of subway running due to inertia. At this time, if the leg space is insufficient, the child will have difficulty in effectively supporting his own body, thereby increasing the risk of falling and being injured. SUMMARY

[0005] The purpose of the present application is to provide a subway child anti-collision structure, which has flexible structure, provides stable support for children, and is conducive to folding and folding of the seat plate, thereby reducing the area occupied by the car.

[0006] The subway child anti-collision structure comprises a back plate arranged vertically, a fixed plate vertically fixed on the back side of the back plate, a seat plate hingedly connected to the bottom of the back plate, a limiting assembly arranged at the lower end of the back plate to limit the rotation of the seat plate within 90 degrees, a body protection plate vertically fixed at the left and right ends of the back plate, a first through slot formed at the connection between the back plate and the body protection plate, and a storage assembly arranged on the fixed plate to fold and store the seat plate.

[0007] Further, the limiting assembly comprises a rotating shaft fixed at the left and right ends of the seat plate, side plates vertically fixed at the left and right ends of the bottom of the back plate, the rear end of the seat plate located between the two side plates, through holes passing through the left and right sides of the side plates, the rotating shaft independently arranged in the corresponding through hole, an extension rod fixed to the rotating shaft after passing through the through hole, and a stop block fixed to the outer side wall of the side plate to limit the rotation angle of the extension rod.

[0008] Further, the bottom of the back plate is horizontally fixed with a support plate, and the bottom of the seat plate is attached to the top of the support plate when the seat plate is in a horizontal state.

[0009] Further, the storage assembly comprises a hanging buckle, which is installed on the fixed plate above the back plate, and an elastic band is fixed on the hanging buckle, and a first hook is installed on the movable end of the elastic band, and a hanging ring matched with the first hook is installed on the front side wall of the seat plate.

[0010] Further, two second through grooves in communication with each other are formed in the seat plate, and the two second through grooves are symmetric about the center of the seat plate.

[0011] Further, a convex rib in a T-shaped structure is arranged between the two second through grooves, and a groove is formed on the convex rib on the front side of the second through groove.

[0012] Further, a front-and-back swinging stand is hinged to the front end of the seat plate, a handrail is fixed to the top of the stand, the handrail as a whole has a U-shaped structure with an opening facing the back plate, a connecting plate is installed on the front end of the handrail, a clamping groove is formed on the front end of the connecting plate, the clamping groove is wedge-shaped matched with the body protection plate, and a rubber ball is fixed to the slot of the clamping groove.

[0013] Further, a secondary plate is vertically fixed to the bottom of the back plate, a sliding groove is vertically formed on the front side wall of the secondary plate, and a telescopic rod is installed at the bottom of the sliding groove, a front-and-back swinging support rod is hinged to the movable end of the telescopic rod, a hanging ring is fixed to the upper end of the support rod, and a second hook matched with the hanging ring is installed on the bottom of the seat plate.

[0014] Further, head protection plates are vertically fixed to the left and right sides of the top of the back plate.

[0015] Compared with the prior art, the present application has the following advantages: In the present application, the seat plate in a vertical state is rotated to a horizontal state, a child is held and placed on the seat plate, the second through groove and the convex rib are matched with each other to limit the child's buttocks to slide back and forth on the seat plate, the handrail and the body protection plate provide support for the child's arms to prevent injury caused by inertia impact, the seat plate is rotated from a horizontal state to a vertical state, the first hook limits the hanging ring, the seat plate remains in an overlapping storage state with the back plate, and the area occupied by the car is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The figure is a structural schematic diagram of the present application; Figure 2 is Figure 1 the right view; Figure 3 is Figure 1 the top view of the seat plate in the present application; Figure 4 isFigure 1 Diagram showing the folded state of the center seat plate; Figure 5 This is a schematic diagram of the structure of Example 4; Figure 6 for Figure 5 Top view of the center armrest; Figure 7 This is a schematic diagram of the structure of Example 5; Figure 8 for Figure 7 The right view; Figure 9 This is a usage state diagram for Example 5; The components in the diagram are named as follows: 1. Fixing plate; 2. Hook; 3. Back plate; 4. Elastic band; 5. Head protection plate; 6. First hook; 7. Body protection plate; 8. First through groove; 9. Seat plate; 10. Hanging ring; 11. Support plate; 12. Stop block; 13. Side plate; 14. Extension rod; 15. Rotating shaft; 16. Second through groove; 17. Raised ridge; 18. Groove; 19. Handrail; 20. Column; 21. Reinforcing plate; 22. Connecting plate; 23. Rubber ball; 24. Sub-plate; 25. Telescopic rod; 26. Support rod; 27. Hanging ring; 28. Second hook. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0018] Example 1 This embodiment describes a child safety structure for subways, such as... Figures 1 to 9 As shown, it includes a vertically arranged back panel 3, with a fixing plate 1 vertically fixed to the rear side of the back panel 3. The fixing plate 1 is vertically fixed to the upper end of the rear side wall of the back panel 3. The fixing plate 1 has through holes at the four top corners that are connected front and back. The fixing plate 1 is installed in the subway car by bolts. The back panel 3 is installed in the spacious standing area of ​​the subway car, separate from the existing side-by-side seats. When parents bring children, they pick up the children and have them sit on the seat board 9. The parents stand next to the children and hold the back panel 3 for support. The bottom of the back panel 3 is hinged to the seat panel 9. The rear end of the seat panel 9 is hinged to the lower end of the back panel 3. By rotating the seat panel 9 upward by 90 degrees, the seat panel 9 and the back panel 3 are made parallel to each other, and the seat panel 9 is stored. When the seat panel 9 is not in use, it reduces the space occupied in the standing car. After the seat panel 9 is folded up, the seat panel 9 and the back panel 3 can also provide handrails for passengers standing in the car, thus fulfilling their function. The rotating shaft 15 is fixed to the left and right ends of the base plate 9. A through hole is provided at the rear end of the base plate 9, through which the rotating shaft 15 passes. The base plate 9 rotates around the rotating shaft 15 when it swings back and forth. Side plates 13 are vertically fixed to the left and right ends of the bottom of the back plate 3. The rear end of the base plate 9 is located between the two side plates 13. There are two side plates 13: the left side plate 13 is fixed to the left side wall at the lower end of the back plate 3, and the right side plate 13 is fixed to the right side wall at the lower end of the back plate 3. The rear end of the base plate 9 is inserted between the two side plates 13. Each side plate 13 has a through hole that connects to the left and right sides. The rotating shaft 15 is respectively... Independently mounted in corresponding through holes, the left end of the rotating shaft 15 passes through the through hole of the left side plate 13, and the right end of the rotating shaft 15 passes through the through hole of the right side plate 13; after the rotating shaft 15 exits the through hole, an extension rod 14 is fixed thereon. The extension rod 14 is attached to the outer wall of the side plate 13 and fixed to the rotating shaft 15. When the rotating shaft 15 rotates, it drives the extension rod 14 to rotate together; a stop block 12 is fixed on the outer wall of the side plate 13 to limit the rotation angle of the extension rod 14. The stop block 12 is fixed on the outer wall of the side plate 13. By blocking the extension rod 14 with the stop block 12, the seat plate 9 is limited to excessive rotation and its rotation is controlled within 90 degrees. Figure 2 As shown, the extension rod 14 is fixed to the right side of the rotating shaft 15, and the stop block 12 is fixed to the top of the extension rod 14. The stop block 12 blocks the extension rod 14, allowing the seat plate 9 to rotate to a maximum position perpendicular to the back plate 3. This entire section constitutes a limiting component that restricts the seat plate 9's rotation within 90 degrees. When the limiting component is in use, the seat plate 9 rotates downwards from a position parallel to the back plate 3. As the seat plate 9 rotates, it drives the rotating shaft 15 and the extension rod 14 to rotate together. When the seat plate 9 rotates to a position perpendicular to the back plate 3, the extension rod 14 presses against the stop block 12. By restricting the continuous rotation of the extension rod 14 by the stop block 12, the rotation range of the seat plate 9 is controlled within 0-90 degrees. By blocking the extension rod 14 by the stop block 12, the seat plate 9 can also have a certain load-bearing capacity to support the weight of the child. Of course, the limiting component can also set the extension rod 14 and the stop block 12 into two sets, with the two sets of stop blocks 12 and extension rod 14 respectively set on the left and right sides of the rotating shaft 15. The two sets of stop blocks 12 and extension rod 14 can provide the load-bearing capacity of the seat plate 9 and provide stable support for the child. Two body protection plates 7 are vertically fixed to both ends of the back panel 3. The back panel 7 is fixed to the left and right sides of the back panel 3 respectively. The rear end of the body protection plate 7 is fixed to the side wall of the back panel 3. The connection between the body protection plate 7 and the back panel 3 is rounded. The body protection plate 7 provides a gripping area for the child's arms. The body protection plate 7 can also support the child's body when the vehicle generates inertia. The body protection plate 7 is wrapped with a sponge pad. The sponge pad is soft and prevents the child from directly hitting the body protection plate 7, which helps to protect the child. The first through slot 8 is arranged at the joint of the back plate 3 and the body protection plate 7, when the child sits on the seat plate 9, the arms pass through the first through slot 8, and the body protection plate 7 is held around, so that the child is supported by the body protection plate 7, and the child is prevented from being injured due to inertia impact; The hanging buckle 2 is arranged on the fixed plate 1 above the back plate 3, the hanging buckle 2 is fixed on the fixed plate 1 and located above the back plate 3, the elastic band 4 is fixed on the hanging buckle 2, the movable end of the elastic band 4 is provided with the first hook 6, the upper end of the elastic band 4 is fixed on the hanging buckle 2, and the lower end is provided with the first hook 6, the front side wall of the seat plate 9 is provided with the hanging ring 10 matched with the first hook 6, the hanging ring 10 is arranged at the front end of the seat plate 9, the seat plate 9 is rotated to the vertical state and is parallel to the back plate 3, the elastic band 4 is pulled to hang the first hook 6 on the hanging ring 10, so that the seat plate 9 and the back plate 3 are in the folding state of being parallel to each other, and the area occupied by the seat plate 9 is reduced, the whole text constitutes a storage assembly for folding and storing the seat plate 9, and the hanging buckle 2 and the hanging ring 10 can be arranged as two groups, the two hanging buckles 2 are arranged on the left side and the right side of the back plate 3 respectively, the weight of the seat plate 9 is borne by the two elastic bands 4, and the seat plate 9 is supported.

[0019] As shown in the drawings, Figure 1 The head protection plates 5 are vertically arranged on the left side and the right side of the top of the back plate 3, the head protection plates 5 are arranged on the left side and the right side of the top of the back plate 3 respectively, the impact force on the head of the child is buffered by the head protection plates 5, the head protection plates 5 are made of silica gel or thermoplastic polyurethane, are soft, low-temperature-resistant and tear-resistant, and are commonly used as a buffer layer of sports helmets and children's safety hats.

[0020] Working principle: The elastic band 4 is pulled, the first hook 6 is taken off the hanging ring 10, the seat plate 9 in the vertical state is rotated to the horizontal state, the child is held and placed on the seat plate 9, the body is located between the two body protection plates 7, the legs are inserted into the second through slot 16, the convex rib 17 is matched to limit the sliding of the buttocks of the child on the seat plate 9, the handrail 19 is rotated and fixed in front of the child, the palm of the child is clamped on the handrail 19 or the arms pass through the first through slot 8 and hold the body protection plate 7, the child is prevented from being injured due to inertia impact by providing stable support for the buttocks of the child and the arms, the seat plate 9 is supported by the stop block 12 limiting the extension rod 14 and the supporting plate 11, the weight of the child and the seat plate 9 is borne while the excessive rotation of the seat plate 9 is limited, when the seat plate 9 is not used, the seat plate 9 is upwardly rotated to the vertical state, the elastic band 4 is pulled, the first hook 6 is hung on the hanging ring 10, and the seat plate 9 is kept in the storage state of being overlapped with the back plate 3, so that the area occupied by the car is reduced.

[0021] Embodiment 2 The technology is further illustrated in the embodiment, as shown in the drawings, Figure 1 andFigure 2 As shown, the bottom of the backboard 3 is horizontally fixed with a support plate 11, which is horizontally fixed at the lower end of the backboard 3; When the seat plate 9 is in a horizontal state, the bottom of the seat plate 9 is attached to the top of the support plate 11. When the seat plate 9 is rotated to be perpendicular to the backboard 3, the support plate 11 lifts the seat plate 9 to provide support for the seat plate 9, thereby sharing the gravity borne by the extension rod 14 and the stop block 12, providing stable support for children while prolonging the service life of the two.

[0022] Embodiment 3 This embodiment further illustrates the technology, as shown in Figure 3 As shown, two second through grooves 16 are formed in the seat plate 9 and are in communication with each other. The two second through grooves 16 are symmetric about the center of the seat plate 9. The second through grooves 16 are formed in the seat plate 9. When a child sits on the seat plate 9, the child's legs are inserted into the second through grooves 16, thereby improving the stability of the child when sitting on the seat plate 9 and preventing the child from sliding on the seat plate 9 due to inertia.

[0023] As shown in Figure 3 The two second through grooves 16 are provided with a "T"-shaped protrusion 17. The protrusion 17 is installed on the top of the seat plate 9. When a child sits on the seat plate 9, the protrusion 17 is located between the child's legs, thereby blocking the child's legs and preventing the child from sliding back and forth on the seat plate 9. A groove 18 is formed on the protrusion 17 located on the front side of the second through groove 16. The groove 18 is formed on the protrusion 17. When a child sits on the seat plate 9, the child's feet are placed in the groove 18, thereby preventing the child from sliding back and forth on the seat plate 9 and avoiding collisions caused by the child's inertia.

[0024] In this embodiment, a groove can also be formed downwardly in the seat plate 9. The child's hips are seated in the groove, thereby limiting the child's hips.

[0025] Embodiment 4 This embodiment further illustrates the technology, as shown in Figure 5 and Figure 6 The front end of the seat plate 9 is hingedly connected with a front and rear swinging column 20. The lower end of the column 20 is hingedly connected to the front side wall of the seat plate 9. The column 20 swings forward and backward about the front end of the seat plate 9. A handrail 19 is fixed to the top of the column 20. The handrail 19 has a "U"-shaped structure with an opening facing the backboard 3. When the column 20 is in a vertical state, the handrail 19 is buckled to the front side of the backboard 3. A child sitting on the seat plate 9 holds or grabs the handrail 19. The child is provided with a barrier by the handrail 19, which has a function similar to a safety belt, thereby preventing the child from being thrown out of the seat plate 9 due to inertia. The front end of the handrail 19 is provided with a connecting plate 22, the front end of the connecting plate 22 is provided with a clamping groove, the clamping groove is wedge-shaped matched with the body protection plate 7, the side wall of the clamping groove provided on the connecting plate 22 is inclined, the width of the groove opening is greater than the width of the groove bottom, when the connecting plate 22 is inserted into the body protection plate 7, the gradually reduced clamping groove can be clamped on the body protection plate 7, so as to fix the handrail 19 on the front side of the child body; The groove opening is fixed with a rubber ball 23, the rubber ball 23 has ductility, when the connecting plate 22 is inserted into the body protection plate 7, the rubber ball 23 is extruded by the body protection plate 7 to deform, when the connecting plate 22 passes through the body protection plate 7, the rubber ball 23 is located in the first through groove 8, the rubber ball 23 restores the deformation after losing the extrusion of the body protection plate 7, and is clamped in the first through groove 8, so as to further improve the stability of the handrail 19 during installation.

[0026] Embodiment 5 This embodiment further illustrates the technology, as shown in Figure 5 , Figure 6 and Figure 7 , the bottom of the back plate 3 is vertically fixed with a sub plate 24, the sub plate 24 is fixed on the bottom of the back plate 3, the top corner of the sub plate 24 is provided with a through hole communicated between front and back, the sub plate 24 is installed on the side wall of the subway car through the through hole by a bolt; The front side wall of the sub plate 24 is vertically provided with a sliding groove, the sliding groove is provided along the length direction of the sub plate 24; The bottom of the sliding groove is provided with a telescopic rod 25, the telescopic rod 25 is installed on the bottom of the sliding groove, the telescopic rod 25 adopts an electric push rod, the electric push rod is a kind of electric drive device for converting the rotary motion of the electric motor into the linear reciprocating motion of the push rod, which is composed of a drive motor, a speed reducer, a screw, a nut, a guide sleeve, a push rod, a sliding seat, a spring, a housing and a turbine, a micro-motion control switch and the like, the working principle is that the electric motor drives a pair of screw nuts after being reduced by a gear or a worm gear, so as to convert the rotary motion of the electric motor into linear motion, the push rod action is completed by using the forward and reverse rotation of the electric motor, the housing of the electric push rod is fixed on the bottom of the sliding groove, the telescopic rod 25 can also adopt a pneumatic cylinder, the pneumatic cylinder is a kind of mechanical device which uses compressed air as power source, realizes the functions of supporting, lifting, positioning or buffering through the reciprocating motion of the piston, generally includes a cylinder, a piston, a piston rod, a sealing element and an end cover; The movable end of the telescopic rod 25 is hinged with a front and back swinging support rod 26, the support rod 26 is hinged on the upper end of the telescopic rod 25, the telescopic rod 25 is elongated or shortened to drive the support rod 26 to move up and down together; The upper end of the support rod 26 is fixed with a hanging ring 27, the hanging ring 27 is fixed on the upper end of the support rod 26; The bottom of the seat plate 9 is provided with a second hook 28 matched with the hanging ring 27, the second hook 28 is installed on the bottom of the seat plate 9.

[0027] In use, when the seat plate 9 is in the storage state, the telescopic rod 25 is in the shortened state, the support rod 26 and the hanging ring 27 are stored in the sliding groove, and after the seat plate 9 is rotated to the horizontal state, the support rod 26 is rotated forward, the telescopic rod 25 is lengthened, the support rod 26 is pushed to move upward, the hanging ring 27 is inserted into the second hook 28, and the seat plate 9 is supported by the support rod 26 to bear the weight of the seat plate 9.

Claims

1. A child safety structure for subways, comprising a vertically arranged back plate (3), a fixing plate (1) vertically fixed to the rear side of the back plate (3), and a seat plate (9) hinged to the bottom of the back plate (3), characterized in that: The lower end of the back plate (3) is provided with a limiting component that restricts the seat plate (9) from rotating within 90 degrees. Both the left and right ends of the back plate (3) are vertically fixed with body protection plates (7). A first through groove (8) is provided at the connection between the back plate (3) and the body protection plate (7). A storage component for folding and storing the rotating seat plate (9) is provided on the fixing plate (1).

2. The subway child collision avoidance structure according to claim 1, characterized in that: The limiting component includes a rotating shaft (15), which is fixed at both ends of the seat plate (9). Both ends of the bottom of the back plate (3) are vertically fixed with side plates (13). The rear end of the seat plate (9) is located between the two side plates (13). The side plates (13) have through holes that connect the left and right sides. The rotating shaft (15) is independently installed in the corresponding through holes. After the rotating shaft (15) passes through the through holes, an extension rod (14) is fixed to each of them. A stop block (12) that limits the rotation angle of the extension rod (14) is fixed to the outer side wall of the side plate (13).

3. The subway child collision avoidance structure according to claim 2, characterized in that: The bottom of the back plate (3) is horizontally fixed with a support plate (11). When the seat plate (9) is in a horizontal state, the bottom of the seat plate (9) is attached to the top of the support plate (11).

4. The subway child collision avoidance structure according to claim 1, characterized in that: The storage assembly includes a hook (2), which is mounted on a fixed plate (1) above the back plate (3). An elastic band (4) is fixed on the hook (2), and a first hook (6) is installed on the movable end of the elastic band (4). A hanging ring (10) matching the first hook (6) is installed on the front side wall of the seat plate (9).

5. The subway child collision avoidance structure according to claim 1, characterized in that: The seat plate (9) has two vertically connected second through slots (16), which are symmetrical about the center of the seat plate (9).

6. The subway child collision avoidance structure according to claim 5, characterized in that: A "T"-shaped protrusion (17) is provided between the two second through slots (16), and a groove (18) is provided on the protrusion (17) located on the front side of the second through slot (16).

7. The subway child collision avoidance structure according to claim 1, characterized in that: The front end of the seat plate (9) is hinged to a column (20) that swings back and forth. A handrail (19) is fixed to the top of the column (20). The handrail (19) has a U-shaped structure with its opening facing the back plate (3). A connecting plate (22) is installed at the front end of the handrail (19). A slot is opened at the front end of the connecting plate (22). The slot is wedge-shaped and fits the body protection plate (7). A rubber ball (23) is fixed at the opening of the slot.

8. The subway child collision avoidance structure according to claim 1, characterized in that: The back plate (3) has a sub-plate (24) vertically fixed at the bottom. A sliding groove is vertically opened on the front side wall of the sub-plate (24). A telescopic rod (25) is installed at the bottom of the sliding groove. A support rod (26) that swings back and forth is hinged to the movable end of the telescopic rod (25). A hanging ring (27) is fixed at the upper end of the support rod (26). A second hook (28) that matches the hanging ring (27) is installed at the bottom of the seat plate (9).

9. The subway child collision avoidance structure according to claim 1, characterized in that: The back plate (3) has a head protection plate (5) vertically fixed on both the left and right sides of the top.

Images