Child seat with restraining function

Abstract

The invention relates to the related technical field of child seats, in particular to a child seat with a restraining function, a U-shaped flat plate for supporting and playing of a child is arranged at the top of a seat body, and an adjusting base for assembling and adjusting the U-shaped flat plate is fixedly mounted at the top of the seat body; the U-shaped flat plate is arranged in the adjusting base, an adjusting assembly arranged in the adjusting base is used for adjusting the distance of the U-shaped flat plate, and the adjusting assembly comprises a pushing plate movably arranged in the U-shaped flat plate, and the position of the U-shaped flat plate is adjusted through the adjusting base, so that the U-shaped flat plate is suitable for different children to use; a U-shaped flat plate and an adjusting base are assembled and disassembled through a pushing plate in an adjusting assembly, a U-shaped restraining plate is conveniently adjusted through a connecting base, restraining and limiting of different children are completed through the U-shaped restraining plate, the U-shaped restraining plate and the connecting base are stably supported through a reinforcing assembly, the seat body can be adjusted, and the child seat can be conveniently adjusted. And high-efficiency dismounting and cleaning can also be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of children's seats, and particularly to a children's seat with a restraint function. Background Art

[0002] A children's seat is a special chair for children to have meals, suitable for babies of different ages from 6 months to 3 years old. The children's seat can also be used for children over 3 years old. Using a children's seat helps babies develop good habits. It can avoid the trouble of chasing after the baby to feed, and there are many other benefits. When the baby sits in a chair suitable for him / her, he / she will not fall around due to instability. The hands can be freed to hold tableware by himself / herself, and at the same time, it also exercises the baby's coordination ability of hands, eyes and brain, which is very helpful for the healthy growth of the baby.

[0003] Currently, for common children's seats on the market, if a child tilts or topples over excessively, it is easy to cause the child to fall and get injured, posing a safety hazard. There is no good restraint on the child, so the child will twist back and forth on the seat, causing a great hidden danger. Because the existing restraint is fixed for different children, some children need loose restraint on the legs and tight restraint on the upper body, while some children need tight restraint on the legs and loose restraint on the upper body. However, the existing children's seats cannot coordinately restrain the legs and the upper body, reducing the adjustment performance of the children's seat and resulting in the risk that the child is likely to twist back and forth on the seat and fall. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a children's seat with a restraint function.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: It includes a seat body. At the top of the seat body, there is a U-shaped flat plate for children to support and play. At the top of the seat body, an adjustment base for assembling and adjusting the U-shaped flat plate is fixedly installed. An adjustment component arranged inside the adjustment base is used to adjust the distance of the U-shaped flat plate, and the adjustment component includes a push plate that moves inside the U-shaped flat plate.

[0006] The seat body is provided with three connecting bases at the bottom of the U-shaped flat plate for adjusting the height of the seat bottom plate. At the position of the child's legs on the seat bottom plate, there is a U-shaped restraint plate for limiting and restraining the legs. At one end of each of the two U-shaped restraint plates close to the seat body, there is a reinforcement component that cooperates with the connecting base for support. At one end of each of the two U-shaped restraint plates far from the seat body, there is a locking component that cooperates with the seat bottom plate for limiting.

[0007] As a preferred technical solution of the present invention, the adjusting assembly further includes a movable block that drives the push plate to move. Adjusting cavities are provided at both ends of the U-shaped flat plate on the side far from the U-shaped flat plate. A limiting support plate is fixedly installed in the adjusting cavity of the U-shaped flat plate. A push plate is arranged between the limiting support plates. A limiting chute is provided on the side of the limiting support plate close to the push plate. A limiting slider is slidably connected in the limiting chute. The push plate is fixedly installed between the limiting sliders.

[0008] A rotating screw is movably arranged inside the adjusting cavity. The movable block is threadedly penetrated through the outside of the rotating screw. The movable block is fixedly installed with an arc-shaped movable rod. The push plate is provided with an arc-shaped inclined groove that matches the size of the arc-shaped movable rod. And the arc-shaped movable rod moves in the arc-shaped inclined groove. An adjusting plate is fixedly installed on the top of the push plate. The U-shaped flat plate is provided with an adjusting hole that matches the size of the adjusting plate. And the adjusting plate movably penetrates through the adjusting hole. A plurality of adjusting grooves that match the size of the adjusting plate are uniformly provided at the inner top of the adjusting base. And the top end of the adjusting plate moves in the adjusting groove.

[0009] As a preferred technical solution of the present invention, the locking and supporting assembly includes a first rack plate installed on the U-shaped restraint plate. A fixed rotating shaft is movably arranged inside the seat bottom plate. A first gear that is movably engaged with the first rack plate is fixedly installed on the fixed rotating shaft. A ratchet wheel is fixedly installed on the top side of the first gear of the fixed rotating shaft. An L-shaped fixed plate is fixedly installed inside the seat bottom plate. The L-shaped fixed plate is movably penetrated and connected with a T-shaped grip.

[0010] A pawl that cooperates with the ratchet wheel is arranged at the top end of the T-shaped grip. A compression spring is fixedly installed on the bottom side of the L-shaped fixed plate of the T-shaped grip. And the bottom end of the compression spring is installed on the inner bottom of the seat bottom plate. The bottom of the T-shaped grip penetrates and extends to the outside of the seat bottom plate. A torsion spring is fixedly installed inside the top end of the T-shaped grip. A ratchet wheel is fixedly installed outside the torsion spring. And the ratchet wheel moves at the top of the T-shaped grip.

[0011] As a preferred technical solution of the present invention, connection blocks that match the size of the connection base are fixedly installed at both ends of the seat bottom plate. And the connection blocks move in the connection base. The reinforcement assembly includes a second rack plate installed on the U-shaped restraint plate. The connection block is movably connected with a reinforcement screw. A second gear that is movably engaged with the second rack plate is fixedly installed on the reinforcement screw.

[0012] A limiting base is fixedly installed on the seat bottom plate. The top of the limiting base is connected with a U-shaped reinforcement block through a limiting groove. And the U-shaped reinforcement block is threadedly penetrated through the reinforcement screw. The connection base is provided with a positioning groove that matches the size of the U-shaped reinforcement block. And the top end of the U-shaped reinforcement block moves in the positioning groove.

[0013] As a preferred technical solution of the present invention, a semi-circular plate is movably connected to one side of the U-shaped flat plate far from the seat body through a rotating shaft. A positioning component is arranged on the side of the U-shaped flat plate close to the semi-circular plate. The positioning component includes a positioning rod for positioning the semi-circular plate. A first spring is installed inside the U-shaped flat plate. The positioning rod is fixedly installed at one end of the first spring close to the semi-circular plate. The semi-circular plate is provided with a positioning hole that matches the size of the positioning rod, and the positioning rod movably penetrates through the positioning hole. A pushing block is fixedly installed on one side of the positioning rod.

[0014] An arc-shaped backrest is fixedly installed on the top of the seat body. A plurality of arc-shaped slots are opened at the bottom of the seat body. The seat body is connected with a footrest through the arc-shaped slots. A connecting band with a buckle is connected between the bottom of the U-shaped flat plate and the seat bottom plate.

[0015] Compared with the prior art, the beneficial effects that the present invention can achieve are:

[0016] 1. In the present invention, the position of the U-shaped flat plate is adjusted through the adjusting base, so that the U-shaped flat plate is adapted for different children to use. The assembly and disassembly between the U-shaped flat plate and the adjusting base are realized by using the pushing plate in the adjusting component. The U-shaped restraint plate is conveniently adjusted through the connecting base, so that the U-shaped restraint plate completes the restraint and limitation of different children. The U-shaped restraint plate and the connecting base are firmly supported through the reinforcement component, which can not only complete the convenient adjustment of the seat body, but also realize the efficient disassembly and cleaning of the seat body;

[0017] 2. In the present invention, the U-shaped restraint plate is pushed into the inside of the seat bottom plate. After the U-shaped restraint plate is pushed in, it is limited and supported by the limit of the pawl and the torsion spring, so that the U-shaped restraint plate restricts the legs of the child. The looseness of the U-shaped restraint plate is adjusted for the limit restraint, and the adjustment is simple and convenient;

[0018] 3. In the present invention, the U-shaped reinforcement block penetrates through the connecting block and enters the positioning groove of the connecting base, so that the connection between the seat bottom plate and the connecting base is more stable, and the connection between the seat bottom plate and the seat body is more firm, ensuring that the connection between the seat bottom plate and the seat body is more stable;

[0019] 4. In the present invention, the limit on the ratchet is released by the pawl connected to the top of the T-shaped grip. The operator pulls the U-shaped restraint plate to release the restraint on the child's legs. After the restraint is released, the T-shaped grip is loosened, and the compression spring drives the T-shaped grip to move downward, so that the pawl and the ratchet are again limited and fitted to each other, realizing the convenient operation of the U-shaped restraint plate and facilitating the restraint of different children;

[0020] 5. In the present invention, the arc-shaped movable rod moves in the arc-shaped inclined groove to drive the push plate on the limit support plate to move upward. During the upward movement of the push plate, the adjustment plate is driven to pass through the adjustment hole and enter the adjustment groove in the adjustment base, so that the U-shaped plate and the adjustment base are supported at multiple points, and the U-shaped plate is used in conjunction with the adjustment base to limit the position of the child;

[0021] 6. In the present invention, the first spring is compressed by moving the push block in cooperation with the positioning rod, and the semicircular plate is flipped by using the rotating shaft on the U-shaped plate to flip the clean side of the bottom of the semicircular plate. After the flipping is completed, the Panasonic push block uses the first spring to reset and drive the positioning rod to re-enter the positioning hole of the semicircular plate, so that the semicircular plate and the U-shaped plate are fixedly supported again, and the replacement and adjustment of the semicircular plate is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the seat body of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the foot pedal of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the semicircular plate of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the adjustable base of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the regulating cavity of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the push plate of the present invention;

[0029] Figure 8 It is a structural schematic diagram of a U-shaped restraining plate of the present invention;

[0030] Figure 9 It is a schematic diagram of the structure of the ratchet of the present invention;

[0031] Figure 10 It is a structural schematic diagram of the first rack plate of the present invention;

[0032] Figure 11 is a schematic structural diagram of the second gear of the present invention;

[0033] Figure 12 It is a structural schematic diagram of the connection base of the present invention;

[0034] Figure 13 It is a schematic structural diagram of the ratchet of the present invention.

[0035] Wherein: 10, seat body; 11, arc-shaped backrest; 12, arc-shaped slot; 13, footrest; 14, connecting strap; 20, U-shaped flat plate; 21, push plate; 22, movable block; 23, adjustment cavity; 24, limit support plate; 25, limit chute; 26, limit slider; 27, rotating screw; 28, arc-shaped movable rod; 29, arc-shaped inclined slot; 30, adjustment base; 31, adjustment plate; 32, adjustment hole; 33, adjustment groove; 40, seat bottom plate; 41, U-shaped restraint plate; 42, first rack plate; 43, fixed rotating shaft; 44, first gear; 45, ratchet; 46, L-shaped fixing plate; 47, pawl; 48, torsion spring; 49, compression spring; 50, connection base; 51, connection block; 52, second rack plate; 53, reinforcement screw; 54, second gear; 55, limit base; 56, limit groove; 57, U-shaped reinforcement block; 58, positioning groove; 60, T-shaped grip; 70, semi-circular plate; 71, rotating shaft; 72, positioning rod; 73, first spring; 74, positioning hole; 75, push block. Specific embodiments

[0036] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the present invention. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0037] Embodiment: As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, it includes a seat body 10. A U-shaped flat plate 20 for children's support and play is provided at the top of the seat body 10. An adjustment base 30 for assembling and adjusting the U-shaped flat plate 20 is fixedly installed at the top of the seat body 10. The adjustment assembly provided inside the adjustment base 30 is used to adjust the distance of the U-shaped flat plate 20, and the adjustment assembly includes a push plate 21 that moves inside the U-shaped flat plate 20. The seat body 10 is provided with three connection bases 50 at the bottom of the U-shaped flat plate 20 for adjusting the height of the seat bottom plate 40. A U-shaped restraint plate 41 for leg limit restraint is provided at the position of the seat bottom plate 40 corresponding to the child's legs. Reinforcement assemblies for supporting in cooperation with the connection bases 50 are provided at one end of the two U-shaped restraint plates 41 close to the seat body 10, and locking assemblies for limiting in cooperation with the seat bottom plate 40 are provided at one end of the two U-shaped restraint plates 41 far from the seat body 10.

[0038] Refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5 ,By adjusting the position of the U-shaped flat plate 20 through the base 30, the U-shaped flat plate 20 can be adapted to different children for use. The assembly and disassembly between the U-shaped flat plate 20 and the adjusting base 30 are realized by the push plate 21 in the adjusting component. The U-shaped restraint plate 41 can be conveniently adjusted through the connecting base 50, so that the U-shaped restraint plate 41 can complete the restraint and limit of different children. The U-shaped restraint plate 41 and the connecting base 50 are firmly supported by the reinforcement component.

[0039] Refer to Figure 4 、 Figure 5 、 Figure 6 and Figure 7 ,The adjusting component further includes a movable block 22 that drives the push plate 21 to move. Adjusting cavities 23 are provided at both ends of the U-shaped flat plate 20 on the side far from the U-shaped flat plate 20. A limiting support plate 24 is fixedly installed in the adjusting cavity 23 of the U-shaped flat plate 20. A push plate 21 is arranged between the limiting support plates 24. A limiting chute 25 is provided on the side of the limiting support plate 24 close to the push plate 21. A limiting slider 26 is slidably connected in the limiting chute 25. The push plate 21 is fixedly installed between the limiting sliders 26. A rotating screw 27 is movably arranged inside the adjusting cavity 23. The movable block 22 is threadedly penetrated through the outside of the rotating screw 27. The movable block 22 is fixedly installed with an arc-shaped movable rod 28. The push plate 21 is provided with an arc-shaped inclined groove 29 that matches the size of the arc-shaped movable rod 28, and the arc-shaped movable rod 28 moves in the arc-shaped inclined groove 29. A adjusting plate 31 is fixedly installed on the top of the push plate 21. The U-shaped flat plate 20 is provided with an adjusting hole 32 that matches the size of the adjusting plate 31, and the adjusting plate 31 movably penetrates through the adjusting hole 32. A number of adjusting grooves 33 that match the size of the adjusting plate 31 are evenly provided at the inner top of the adjusting base 30, and the top end of the adjusting plate 31 moves in the adjusting groove 33.

[0040] Refer to Figure 3 、 Figure 5 、 Figure 6 and Figure 7, Operate the rotating screw 27 to perform a rotating motion. The movable block 22 on the rotating screw 27 realizes a reciprocating motion under the limitation of the arc-shaped movable rod 28 and the arc-shaped inclined groove 29. When the movable block 22 moves closer to the side of the semi-circular plate 70, the arc-shaped movable rod 28 moves in the arc-shaped inclined groove 29, which will drive the push plate 21 on the limit support plate 24 to move upward. During the upward movement of the push plate 21, it will drive the adjusting plate 31 to penetrate the adjusting hole 32 and enter the adjusting groove 33 inside the adjusting base 30, so that the U-shaped flat plate 20 and the adjusting base 30 are supported by multiple points for limitation. When it is necessary to adjust the distance between the U-shaped flat plate 20 and the adjusting base 30 again, operate the rotating screw 27 in the reverse direction. The movable block 22 on the rotating screw 27 moves away from the side of the semi-circular plate 70. The movable block 22 will cooperate with the arc-shaped inclined groove 29 through the arc-shaped movable rod 28 to make the push plate 21 move downward between the limit support plates 24. The adjusting plate 31 on the push plate 21 disengages from the adjusting groove 33 and enters the inside of the adjusting hole 32 to release the limitation between the U-shaped flat plate 20 and the adjusting base 30.

[0041] Refer to Figure 9 , Figure 10 , Figure 11 and Figure 13 , The locking and supporting assembly includes a first rack plate 42 installed on the U-shaped restraint plate 41. A fixed rotating shaft 43 is movably arranged inside the seat bottom plate 40. A first gear 44 that is movably engaged with the first rack plate 42 is fixedly installed on the fixed rotating shaft 43. A ratchet wheel 45 is fixedly installed on one side of the top of the first gear 44 on the fixed rotating shaft 43. An L-shaped fixed plate 46 is fixedly installed inside the seat bottom plate 40. The L-shaped fixed plate 46 is movably penetrated and connected with a T-shaped grip 60. A ratchet pawl 47 that cooperates with the ratchet wheel 45 is arranged at the top end of the T-shaped grip 60. A compression spring 49 is fixedly installed on one side of the bottom of the T-shaped grip 60 on the L-shaped fixed plate 46, and the bottom end of the compression spring 49 is installed on the inner bottom of the seat bottom plate 40. The bottom of the T-shaped grip 60 penetrates and extends to the outside of the seat bottom plate 40. A torsion spring 48 is fixedly installed inside the top end of the T-shaped grip 60. The torsion spring 48 is fixedly installed outside the ratchet wheel 45, and the ratchet wheel 45 is movably located at the top of the T-shaped grip 60.

[0042] Refer to Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13, the second rack plate 52 on the U-shaped restraint plate 41 meshes with the second gear 54 to drive the reinforcing screw 53 to perform a synchronous rotational movement. During the rotation of the reinforcing screw 53, the U-shaped reinforcing block 57 is driven to perform a pushing movement under the action of the limit base 55 and the limit groove 56, so that the U-shaped reinforcing block 57 penetrates through the connecting block 51 and enters the positioning groove 58 of the connecting base 50, making the connection between the seat bottom plate 40 and the connecting base 50 more stable. In this way, when the child twists, the seat bottom plate 40 will not be separated from the seat body 10, and the connection between the seat bottom plate 40 and the seat body 10 is more solid. Moreover, the deeper the U-shaped restraint plate 41 is adjusted into the seat bottom plate 40, it indicates that the child is relatively small. At this time, the U-shaped reinforcing block 57 enters the positioning groove 58 deeper, ensuring that the connection between the seat bottom plate 40 and the seat body 10 is more stable.

[0043] Refer to Figure 10 , Figure 11 and Figure 13 , pressing the T-shaped grip 60 drives the compression spring 49 to stretch and store energy. At the same time, the pawl 47 connected to the top of the T-shaped grip 60 is disengaged from the ratchet 45. At this time, the operator can pull the U-shaped restraint plate 41 to release the restraint on the child's legs. After the restraint is released, release the T-shaped grip 60. At this time, the compression spring 49 drives the T-shaped grip 60 to move downward, so that the pawl 47 and the ratchet 45 are again in limit fit.

[0044] Refer to Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 , both ends of the seat bottom plate 40 are fixedly installed with connecting blocks 51 that match the size of the connecting base 50, and the connecting blocks 51 are movably installed in the connecting base 50. The reinforcing component includes a second rack plate 52 installed on the U-shaped restraint plate 41. The connecting block 51 is movably connected with a reinforcing screw 53. A second gear 54 that meshes with the second rack plate 52 is fixedly installed on the reinforcing screw 53. The seat bottom plate 40 is fixedly installed with a limit base 55. The top of the limit base 55 is connected with a U-shaped reinforcing block 57 through a limit groove 56, and the U-shaped reinforcing block 57 is threaded through the reinforcing screw 53. The connecting base 50 is provided with a positioning groove 58 that matches the size of the U-shaped reinforcing block 57, and the top of the U-shaped reinforcing block 57 is movably installed in the positioning groove 58.

[0045] Refer to Figure 9 , Figure 10 , Figure 11 and Figure 12The second rack plate 52 on the U-shaped constraint plate 41 is meshed with the second gear 54 to drive the reinforcing screw 53 to rotate synchronously. During the rotation, the reinforcing screw 53 drives the U-shaped reinforcing block 57 to realize pushing movement under the action of the limiting base 55 and the limiting groove 56, so that the U-shaped reinforcing block 57 passes through the connecting block 51 and enters the positioning groove 58 of the connecting base 50, so that the connection between the seat bottom plate 40 and the connecting base 50 is more stable, so that the child will not cause the seat bottom plate 40 to separate from the seat body 10 during the twisting process, and the connection between the seat bottom plate 40 and the seat body 10 is more stable.

[0046] See also Figure 3 , Figure 4 , Figure 5 and Figure 6 The U-shaped flat plate 20 is movably connected to a semicircular plate 70 through a rotating shaft 71 on a side away from the seat body 10. A positioning assembly is provided on the side of the U-shaped flat plate 20 close to the semicircular plate 70. The positioning assembly includes a positioning rod 72 for positioning the semicircular plate 70. A first spring 73 is installed inside the U-shaped flat plate 20. The first spring 73 is fixedly installed with a positioning rod 72 at one end close to the semicircular plate 70. The semicircular plate 70 is provided with a positioning hole 74 that matches the size of the positioning rod 72, and the positioning rod 72 movably passes through the positioning hole 74. A pushing block 75 is fixedly installed on one side of the positioning rod 72. An arc-shaped backrest 11 is fixedly installed on the top of the seat body 10. A plurality of arc-shaped slots 12 are provided at the bottom of the seat body 10. The seat body 10 is connected to a foot pedal 13 through the arc-shaped slots 12. A connecting belt 14 with a buckle is connected between the bottom of the U-shaped flat plate 20 and the seat bottom plate 40.

[0047] See also Figure 3 , Figure 4 , Figure 5 and Figure 6 When one side of the top of the semicircular plate 70 is contaminated by use, the operator moves the push block 75 to use the positioning rod 72 to compress the first spring 73. At this time, the positioning rod 72 withdraws from the positioning hole 74 on the semicircular plate 70, and then the semicircular plate 70 is flipped by the rotating shaft 71 on the U-shaped flat plate 20 to flip the clean side of the bottom of the semicircular plate 70 over. After the flipping is completed, the push block 75 uses the first spring 73 to reset and drive the positioning rod 72 to re-enter the positioning hole 74 of the semicircular plate 70, so that the semicircular plate 70 and the U-shaped flat plate 20 are fixed and supported again, and the connecting belt 14 between the U-shaped flat plate 20 and the working bottom plate is clamped and fixed, effectively preventing the child from sliding off the seat bottom plate 40.

[0048] Working principle: The connecting block 51 on the seat bottom plate 40 is inserted into the connecting bases 50 with different heights to adjust the height of the seat bottom plate 40 to meet the needs of children of different sizes. When placing a child on the seat bottom plate 40, the legs are placed in the U-shaped restraint plate 41. The user pushes the U-shaped restraint plate 41 on the seat bottom plate 40 so that the U-shaped restraint plate 41 contracts to a position suitable for the child's legs. When the U-shaped restraint plate 41 enters the seat bottom plate 40, the first rack plate 42 on the U-shaped restraint plate 41 meshes with the first gear 44 to drive the fixed rotating shaft 43 to perform a rotational motion. The ratchet 45 at the top of the fixed rotating shaft 43 performs a synchronous rotational motion. At this time, the ratchet 45 rotates along the pawl 47. The ratchet 45 realizes a one-way rotational motion under the action of the pawl 47. At this time, the U-shaped restraint plate 41 can only be pushed into the seat bottom plate 40. After the U-shaped restraint plate 41 is pushed in, it cannot retreat due to the limit of the pawl 47 and the torsion spring 48, so that the U-shaped restraint plate 41 restricts the child's legs. The looseness of the U-shaped restraint plate 41 for the limit restraint can be adjusted simply and conveniently;

[0049] When the U-shaped restraint plate 41 enters the seat bottom plate 40, the second rack plate 52 on the U-shaped restraint plate 41 meshes with the second gear 54 to drive the reinforcing screw 53 to perform a synchronous rotational motion. During the rotation of the reinforcing screw 53, the U-shaped reinforcing block 57 is driven to perform a pushing motion under the action of the limit base 55 and the limit groove 56, so that the U-shaped reinforcing block 57 penetrates through the connecting block 51 and enters the positioning groove 58 of the connecting base 50, making the connection between the seat bottom plate 40 and the connecting base 50 more stable. In this way, when the child twists, the seat bottom plate 40 will not be separated from the seat body 10. The connection between the seat bottom plate 40 and the seat body 10 is more stable. Moreover, the deeper the U-shaped restraint plate 41 is adjusted into the seat bottom plate 40, it indicates that the child is smaller. At this time, the U-shaped reinforcing block 57 enters the positioning groove 58 deeper, ensuring that the connection between the seat bottom plate 40 and the seat body 10 is more stable.

[0050] When the child gets off the seat bottom plate 40, pressing the T-shaped grip 60 drives the compression spring 49 to stretch and store energy. At the same time, the pawl 47 connected to the top of the T-shaped grip 60 is disengaged from the ratchet 45. At this time, the operator pulls the U-shaped restraint plate 41 to release the restraint on the child's legs. After the restraint is released, release the T-shaped grip 60. At this time, the compression spring 49 drives the T-shaped grip 60 to move downward, so that the pawl 47 and the ratchet 45 are again in limit fit.

[0051] After adjusting the U-shaped constraint plate 41, the distance between the U-shaped flat plate 20 and the adjustment base 30 is adjusted. Specifically, the operator operates the rotating screw 27 to rotate, and the movable block 22 on the rotating screw 27 realizes reciprocating motion under the limit of the arc-shaped movable rod 28 and the arc-shaped inclined groove 29. When the movable block 22 moves close to one side of the semicircular plate 70, the arc-shaped movable rod 28 moves in the arc-shaped inclined groove 29 to drive the push plate 21 on the limit support plate 24 to move upward. During the upward process of the push plate 21, the adjustment plate 31 will be driven to pass through the adjustment hole 32 and enter the adjustment base 30. The section groove 33 allows the U-shaped plate 20 and the adjustment base 30 to be supported at multiple points. When the distance between the U-shaped plate 20 and the adjustment base 30 needs to be adjusted again, the rotating screw 27 is operated in the reverse direction to move, and the movable block 22 on the rotating screw 27 moves away from one side of the semicircular plate 70. The movable block 22 will cooperate with the arc-shaped inclined groove 29 through the arc-shaped movable rod 28 to make the push plate 21 move downward between the limit support plates 24, and the adjustment plate 31 on the push plate 21 will break away from the adjustment groove 33 and enter the adjustment hole 32 to realize the release of the limit between the U-shaped plate 20 and the adjustment base 30.

[0052] When used by different children, the height of the footrest 13 is adjusted through the arc-shaped slot 12 under the seat body 10 so that the footrest 13 can meet the needs of different children. At the same time, the connecting belt 14 between the U-shaped flat plate 20 and the working bottom plate is clamped and fixed to effectively prevent children from sliding off the seat bottom plate 40.

[0053] In addition, children can play or eat on the semicircular plate 70 when sitting. When the top side of the semicircular plate 70 is contaminated by use, the operator moves the push block 75 to use the positioning rod 72 to compress the first spring 73. At this time, the positioning rod 72 withdraws from the positioning hole 74 on the semicircular plate 70, and then the semicircular plate 70 is flipped by the rotating shaft 71 on the U-shaped flat plate 20 to flip the clean side of the bottom of the semicircular plate 70 over. After the flipping is completed, the push block 75 uses the first spring 73 to reset and drive the positioning rod 72 to re-enter the positioning hole 74 of the semicircular plate 70, so that the semicircular plate 70 and the U-shaped flat plate 20 are fixed and supported again.

[0054] When cleaning the seat body 10, the adjusting plate 31 on the pushing plate 21 is withdrawn from the adjusting groove 33 by rotating the screw rod 27, so that the contact between the adjusting base 30 and the U-shaped flat plate 20 is limited, and the U-shaped flat plate 20 and the semi-circular plate 70 are detached from the seat body 10. Similarly, when assembly is required, reverse operation of rotating the screw rod 27 drives the adjusting plate 31 to enter the adjusting groove 33 again to complete the fixation. At the same time, when disassembling the seat bottom plate 40, pressing the T-shaped grip 60 drives the pawl 47 to disengage from the ratchet 45 for limit support, pulling the U-shaped restraint plate 41 to move. The second rack plate 52 under the U-shaped restraint plate 41 meshes with the second gear 54 to drive the reinforcement screw rod 53 to move. The U-shaped reinforcement block 57 on the processing screw rod is detached from the connection base 50 under the action of the limit base 55, and the operator can directly pull out the seat bottom plate 40 from the connection base 50 for cleaning.

[0055] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to this. Various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A child seat with a restraint function, comprising a seat body, characterized in that, A U-shaped flat plate for children's support and play is provided at the top of the seat body. An adjustment base for assembling and adjusting the U-shaped flat plate is fixedly installed at the top of the seat body. An adjustment component provided inside the adjustment base is used to adjust the distance of the U-shaped flat plate, and the adjustment component includes a push plate that moves inside the U-shaped flat plate. Three connecting bases for adjusting the height of the seat bottom plate are installed at the bottom of the U-shaped flat plate of the seat body. A U-shaped restraint plate for limiting and restraining the legs is provided at the position of the children's legs on the seat bottom plate. Reinforcement components for supporting in cooperation with the connecting bases are provided at one end of each of the two U-shaped restraint plates close to the seat body, and locking components for limiting in cooperation with the seat bottom plate are provided at one end of each of the two U-shaped restraint plates away from the seat body.

2. The child seat with a restraint function according to claim 1, characterized in that, The adjustment component further includes a moving block that drives the push plate to move. Adjustment cavities are opened at both ends of the U-shaped flat plate on the side away from the U-shaped flat plate. A limit support plate is fixedly installed in the adjustment cavity of the U-shaped flat plate. A push plate is arranged between the limit support plates. A limit sliding groove is opened on the side of the limit support plate close to the push plate. A limit sliding block is slidably connected in the limit sliding groove. The push plate is fixedly installed between the limit sliding blocks.

3. The child seat with a restraint function according to claim 2, characterized in that, A rotating screw is movably arranged inside the adjustment cavity. The moving block is threadedly penetrated through the outside of the rotating screw. The moving block is fixedly installed with an arc-shaped moving rod. The push plate is provided with an arc-shaped inclined groove that matches the size of the arc-shaped moving rod, and the arc-shaped moving rod moves in the arc-shaped inclined groove. An adjustment plate is fixedly installed at the top of the push plate. The U-shaped flat plate is provided with an adjustment hole that matches the size of the adjustment plate, and the adjustment plate movably penetrates through the adjustment hole. A number of adjustment grooves that match the size of the adjustment plate are uniformly opened at the inner top of the adjustment base, and the top end of the adjustment plate moves in the adjustment groove.

4. A child seat with a restraint function according to claim 1, characterized in that, The locking and supporting component includes a first rack plate installed on the U-shaped restraint plate. A fixed rotating shaft is movably arranged inside the seat bottom plate. The fixed rotating shaft is fixedly installed with a first gear that meshes with the first rack plate. A ratchet wheel is fixedly installed on one side of the top of the first gear of the fixed rotating shaft. An L-shaped fixed plate is fixedly installed inside the seat bottom plate. The L-shaped fixed plate is movably penetrated and connected with a T-shaped grip.

5. A child seat with a restraint function according to claim 4, characterized in that, A pawl that cooperates with the ratchet wheel is provided at the top end of the T-shaped grip. A compression spring is fixedly installed on one side of the bottom of the T-shaped grip on the L-shaped fixed plate, and the bottom end of the compression spring is installed on the inner bottom of the seat bottom plate. The bottom of the T-shaped grip penetrates and extends to the outside of the seat bottom plate. A torsion spring is fixedly installed inside the top end of the T-shaped grip. The torsion spring is fixedly installed with a ratchet wheel on the outside, and the ratchet wheel moves at the top of the T-shaped grip.

6. The child seat with a restraint function according to claim 1, wherein, Connecting blocks that match the size of the connecting bases are fixedly installed at both ends of the seat bottom plate, and the connecting blocks move in the connecting bases. The reinforcement component includes a second rack plate installed on the U-shaped restraint plate. The connecting block is movably connected with a reinforcement screw, and a second gear that meshes with the second rack plate is fixedly installed on the reinforcement screw.

7. The child seat with a restraint function according to claim 6, wherein, The seat bottom plate is fixedly installed with a limit base, the top of the limit base is connected with a U-shaped reinforcement block through a limit groove, and the U-shaped reinforcement block is threaded through the reinforcement screw rod. The connection base is provided with a positioning groove that matches the size of the U-shaped reinforcement block, and the top end of the U-shaped reinforcement block is movably located in the positioning groove.

8. A child seat with a restraint function according to claim 1, characterized in that, One side of the U-shaped flat plate away from the seat body is movably connected with a semi-circular plate through a rotating shaft. A positioning component is arranged on the side of the U-shaped flat plate close to the semi-circular plate. The positioning component includes a positioning rod for positioning the semi-circular plate. A first spring is installed inside the U-shaped flat plate. The first spring is fixedly installed with a positioning rod at one end close to the semi-circular plate. The semi-circular plate is provided with a positioning hole that matches the size of the positioning rod, and the positioning rod movably penetrates through the positioning hole. A pushing block is fixedly installed on one side of the positioning rod.

9. A child seat with a restraint function according to claim 1, characterized in that, An arc-shaped backrest is fixedly installed on the top of the seat body. A number of arc-shaped slots are opened at the bottom of the seat body. The seat body is connected with a footrest through the arc-shaped slots. A connecting band with a buckle is connected between the bottom of the U-shaped flat plate and the seat bottom plate.

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