A sustainable children's seat with an adjustable structure

Abstract

The present invention relates to a seat, and particularly to a sustainable children's seat with an adjustable structure. The present invention provides a sustainable children's seat with an adjustable structure that can be adjusted into a children's bed. A sustainable children's seat with an adjustable structure includes a base, a seat cushion frame, and a backrest. The seat cushion frame is connected to the base, and the upper side of one side of the seat cushion frame is rotatably connected to the backrest. It further includes a motor. A motor for driving the backrest to rotate is installed on one side of the upper part of the seat cushion frame, and the output shaft of the motor is connected to the backrest. By using the motor as the driving force, the backrest can be rotated 90 degrees backward and downward, turning the seat into the form of a children's bed, enabling children to sleep on the seat. This can be applied to children aged zero to three and can meet the different usage needs of children, achieving the effect of sustainable use.

Description

Technical Field

[0001] The present invention relates to a seat, and more particularly to a sustainable children's seat with an adjustable structure. Background Art

[0002] Children's seats are widely used in families with children. Generally, children's seats are used when children are eating or resting to fix the children's postures and prevent them from falling.

[0003] A children's seat with a convertible connector according to the patent authorization publication number CN213056797U includes a children's seat body and a base. A headrest is fixedly connected to the surface of the children's seat body. A shoulder strap is provided on the headrest. One end of the shoulder strap is fixedly connected to a buckle. The buckle is fixedly connected to the surface of the children's seat body. A front pull strap is provided on the surface of the buckle. A release button is fixedly connected to the surface. A through groove is formed in the surface of the base. A fixing block is fixedly connected to the inner wall of the through groove. A sliding rod is slidably connected inside the fixing block.

[0004] Although the above-mentioned seat can, under the cooperation of the moving block and the engaging groove, facilitate the adjustment of the length of the children's seat when the user uses it, and thus avoid waste of the car space caused by the excessive or insufficient length of the children's seat during installation in the car, the functions of the above-mentioned seat are few and single, and it cannot be adjusted from a seat into a children's bed, so it is not suitable for the different functional requirements of children aged zero to three, resulting in the need for users to purchase products with different functions according to the different age requirements of children, causing waste of resources and increasing the cost of the family.

[0005] In order to solve the problems existing in the above-mentioned prior art, it is very necessary for us to design a sustainable children's seat with an adjustable structure that can be adjusted into a children's bed, so as to achieve the effect of adjusting the seat form into a children's bed form according to the needs. Summary of the Invention

[0006] In order to overcome the shortcomings that the current seats have single functions and cannot be adjusted from a seat into a children's bed, and thus are not suitable for the different functional requirements of children aged zero to three, the technical problem to be solved by the present invention is to provide a sustainable children's seat with an adjustable structure that can be adjusted into a children's bed.

[0007] In order to solve the above technical problems, the present invention provides a sustainable children's seat with an adjustable structure, which includes a base, a seat cushion frame and a backrest. The base is connected with the seat cushion frame, and the upper part of one side of the seat cushion frame is rotatably connected with the backrest. It also includes a motor, a protection mechanism, a safeguarding mechanism and a shielding mechanism. A motor for driving the backrest to rotate is installed on one side of the upper part of the seat cushion frame, and the output shaft of the motor is connected with the backrest. A protection mechanism for blocking both sides of the seat cushion frame is provided on the seat cushion frame, a safeguarding mechanism for protecting the child's head is provided on the backrest, and a shielding mechanism for shielding the child's legs is provided on the seat cushion frame.

[0008] Preferably, the protection mechanism includes a first fixing block, a wire winding wheel and a protection frame. Two first fixing blocks are connected to the upper part of the seat cushion frame. On the side of each of the two first fixing blocks away from each other, a protection frame for preventing a child from falling off the seat cushion frame is rotatably connected, and a wire winding wheel is connected to the bottom of the protection frame.

[0009] Preferably, the safeguarding mechanism includes a second fixing block, a rotating frame and a safeguarding frame. Two second fixing blocks are connected to the top of the backrest. A rotating frame is rotatably connected to each of the two second fixing blocks, and a safeguarding frame for protecting the child is connected between the two rotating frames.

[0010] Preferably, the shielding mechanism includes a third fixing block, a protection frame, a first elastic member, a frame body, a guiding frame, a buckle, a second elastic member and a contact block. Two third fixing blocks are connected to the upper part of the seat cushion frame. A frame body is connected to the upper part of the seat cushion frame. The third fixing blocks are located inside the frame body. A protection frame is rotatably connected between the two third fixing blocks. Two square holes for the child's legs to extend out are opened in the upper part of the protection frame. A first elastic member is connected between the protection frame and the third fixing block. Contact blocks are connected to both sides of the protection frame. Guiding frames are connected to both sides of the upper part of the seat cushion frame. A buckle for clamping the protection frame through the contact block is slidably connected to the guiding frame. A second elastic member is connected between the buckle and the guiding frame.

[0011] Preferably, it further includes a rotating mechanism, which includes a pulling block, a pulling rope, a top rod and a third elastic member. Two pulling blocks are slidably connected to the upper part of the seat cushion frame. A pulling rope wound around the wire winding wheel is connected between the pulling block and the wire winding wheel, and the pulling rope is used to pull the wire winding wheel. Two top rods for pushing the pulling block forward are connected to the back of the backrest. A third elastic member is connected between the first fixing block and the protection frame.

[0012] Preferably, an opening mechanism is further included. The opening mechanism includes a stop block, a protection frame, a rack, a fourth elastic member, a gear, and a fifth elastic member. Stop blocks are connected to the bottoms of the two first fixing blocks. Two racks are slidably connected to the back of the backrest. A fourth elastic member is connected between the rack and the backrest. Two protection frames for protecting the racks are connected to the back of the backrest. The racks are located inside the protection frames and slidably penetrate through the protection frames. Gears are connected to the mutually remote sides of the two rotating frames. The gears are engaged with the racks. A fifth elastic member is connected between the rotating frame and the second fixing block.

[0013] Preferably, a support mechanism is further included. The support mechanism includes a guide rail and a support frame. A guide rail is connected to the upper part of the seat cushion frame. A support frame for supporting the backrest is slidably connected inside the guide rail.

[0014] Preferably, the upper part of the buckle is a bevel surface.

[0015] The present invention has the following beneficial effects: 1. By using the motor as the driving force, the backrest can be rotated 90 degrees backward and downward, so that the seat can be changed into the form of a children's bed, enabling children to sleep on the seat, thus being applicable to children aged zero to three years old and meeting different usage needs of children, achieving the effect of sustainable use.

[0016] 2. By rotating the two protection frames 180 degrees backward, the protection frames can protect the two sides of the child. Under the action of the protection frames, the protection frames can prevent the child from rolling off the seat to the left and right sides, achieving the effect of protecting the child and having high safety.

[0017] 3. By pushing the support frame backward to a proper position so that the support frame contacts the backrest, the support frame can support the backrest, thereby increasing the stability of the backrest and enabling children to sleep safely on the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 is a partial three-dimensional structural schematic diagram of the present invention.

[0020] Figure 3 is a first three-dimensional structural schematic diagram of the protection mechanism of the present invention.

[0021] Figure 4 is a second three-dimensional structural schematic diagram of the protection mechanism of the present invention.

[0022] Figure 5 is a sectional view of the protection mechanism of the present invention.

[0023] Figure 6 is a three-dimensional structural schematic diagram of the protection mechanism of the present invention.

[0024] Figure 7 This is a sectional view of the protection mechanism of the present invention.

[0025] Figure 8 This is a schematic diagram of the first partial three-dimensional structure of the protection mechanism of the present invention.

[0026] Figure 9 This is a schematic diagram of the second partial three-dimensional structure of the protection mechanism of the present invention.

[0027] Figure 10 This is a sectional view of the protection mechanism of the present invention.

[0028] Figure 11 This is a schematic diagram of the three-dimensional structure of the rotation mechanism of the present invention.

[0029] Figure 12 This is a partially enlarged view of the rotation mechanism of the present invention.

[0030] Figure 13 This is a schematic diagram of the first partial three-dimensional structure of the opening mechanism of the present invention.

[0031] Figure 14 This is a schematic diagram of the second partial three-dimensional structure of the opening mechanism of the present invention.

[0032] Figure 15 This is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention.

[0033] The reference numerals in the drawings are: 1 - base, 2 - seat cushion frame, 3 - backrest, 4 - motor, 5 - protection mechanism, 51 - first fixing block, 52 - winding wheel, 53 - protection frame, 6 - protection mechanism, 61 - second fixing block, 62 - rotating frame, 63 - protection frame, 7 - protection mechanism, 71 - third fixing block, 72 - protection frame, 73 - square hole, 74 - first elastic member, 75 - frame body, 76 - guide frame, 77 - buckle, 78 - second elastic member, 79 - contact block, 8 - rotation mechanism, 81 - pulling block, 82 - pulling rope, 83 - ejector rod, 84 - third elastic member, 9 - opening mechanism, 91 - stop block, 92 - protection frame, 93 - rack, 94 - fourth elastic member, 95 - gear, 96 - fifth elastic member, 10 - support mechanism, 101 - guide rail, 102 - support frame. Detailed Description of the Invention

[0034] The present invention will be further described below with reference to the drawings and embodiments.

[0035] Embodiment 1

[0036] A sustainable children's seat with an adjustable structure, please refer to Figure 1-10, including a base 1, a seat cushion frame 2, a backrest 3, a motor 4, a protection mechanism 5, a safeguard mechanism 6 and a shielding mechanism 7. The seat cushion frame 2 is bolted to the base 1. The backrest 3 is rotatably connected to the upper rear side of the seat cushion frame 2. The motor 4 is installed on the right part of the upper rear side of the seat cushion frame 2. The output shaft of the motor 4 is connected to the backrest 3. A protection mechanism 5 is provided on the seat cushion frame 2. A safeguard mechanism 6 is provided on the backrest 3. A shielding mechanism 7 is provided on the seat cushion frame 2.

[0037] Please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 , the protection mechanism 5 includes a first fixing block 51, a winding wheel 52 and a protection frame 53. The first fixing blocks 51 are symmetrically bolted to the upper rear side of the seat cushion frame 2 on the left and right. A protection frame 53 is rotatably connected to one side of each of the two first fixing blocks 51 away from each other. The bottom of the protection frame 53 is connected to the winding wheel 52.

[0038] Please refer to Figure 1 , Figure 6 and Figure 7 , the safeguard mechanism 6 includes a second fixing block 61, a rotating frame 62 and a safeguard frame 63. The second fixing blocks 61 are symmetrically bolted to the top of the backrest 3 on the left and right. A rotating frame 62 is rotatably connected to each of the two second fixing blocks 61. A safeguard frame 63 is connected between the two rotating frames 62.

[0039] Please refer to Figure 1 , Figure 8 , Figure 9 and Figure 10 , the shielding mechanism 7 includes a third fixing block 71, a protection frame 72, a first elastic member 74, a frame body 75, a guiding frame 76, a buckle 77, a second elastic member 78 and a contact block 79. The third fixing blocks 71 are symmetrically bolted to the upper front side of the seat cushion frame 2 on the left and right. The frame body 75 is bolted to the upper front side of the seat cushion frame 2. The third fixing blocks 71 are located inside the frame body 75. A protection frame 72 is rotatably connected between the two third fixing blocks 71. Square holes 73 are symmetrically formed in the upper part of the protection frame 72 on the left and right. A first elastic member 74 is connected between the protection frame 72 and the third fixing blocks 71. The first elastic member 74 is a first scroll spring. Contact blocks 79 are welded to the left and right sides of the front part of the protection frame 72. Guiding frames 76 are bolted to the left and right sides of the upper part of the seat cushion frame 2. A buckle 77 is slidably connected to the guiding frame 76. The upper part of the buckle 77 is a slope. A second elastic member 78 is connected between the buckle 77 and the guiding frame 76. The second elastic member 78 is a first spring.

[0040] When a child aged 1 - 3 needs to use this seat, first carry the child onto the seat cushion frame 2 or let the child sit on the seat cushion frame 2 by themselves. Then rotate the protective frame 72 forward and upward. The protective frame 72 drives the contact block 79 to rotate together, and the first elastic member 74 deforms. After that, during the process of the contact block 79 rotating forward and upward, it will push the buckle 77 backward through the inclined surface of the buckle 77, and the second elastic member 78 is compressed. When the protective frame 72 rotates 270 degrees forward and upward, at this time, the contact block 79 no longer pushes the buckle 77. Thus, the second elastic member 78 resets and drives the buckle 77 to move backward and reset, and the protective frame 72 is locked by the contact block 79. Then stretch the child's legs forward through the two square holes 73 respectively, so that the child can use this seat in the seat form. When the child needs to eat, the user can place the rice bowl on the protective frame 72, which is convenient for the child to eat on this seat. When this seat needs to be used as a baby cot for children aged 0 - 1, start the motor 4. The output shaft of the motor 4 drives the backrest 3 to rotate backward and downward. When the backrest 3 rotates 90 degrees, turn off the motor 4. Then rotate the two protective frames 53 backward by 180 degrees, and then rotate the protection frame 63 upward by 270 degrees. The protection frame 63 drives the rotating frame 62 to rotate together. At this time, this seat is in the form of a baby cot. Then carry the child onto this seat. At the same time, the protective frames 53 on both sides can prevent the child from rolling off the seat to the left and right sides. At the same time, the protection frame 63 and the protective frame 72 can protect the child's head and legs respectively. Thus, through the above operations, this seat can be adjusted into a baby cot, so that this seat is suitable for children aged 0 - 1. Through the above operations, the different usage requirements of children aged 0 - 3 can be met, achieving the effect of sustainable use. When this seat is not needed, let the child leave the seat, then rotate the protection frame 63 backward to reset. The protection frame 63 drives the rotating frame 62 to rotate backward and reset together. Then rotate the two protective frames 53 backward to reset, and then control the output shaft of the motor 4 to rotate backward. The motor 4 drives the backrest 3 to rotate backward. When the backrest 3 rotates backward and resets, turn off the motor 4. Then pull the buckle 77 forward, and the second elastic member 78 is compressed. The buckle 77 no longer locks the protective frame 72 through the contact block 79. Thus, the first elastic member 74 resets and drives the protective frame 72 and the contact block 79 to rotate backward and reset. After the protective frame 72 rotates backward and resets, release the buckle 77, and the second elastic member 78 resets and drives the buckle 77 to move backward and reset. In this way, this seat can be adjusted into the seat form.

[0041] Embodiment 2

[0042] On the basis of Embodiment 1, please refer to Figure 1 、 Figure 5 、 Figure 11 and Figure 12, further comprising a rotating mechanism 8, the rotating mechanism 8 includes a pulling block 81, a pulling rope 82, a push rod 83 and a third elastic member 84. The upper part of the seat cushion frame 2 is symmetrically and slidably connected with the pulling block 81 on the left and right. A pulling rope 82 wound around the winding wheel 52 is connected between the pulling block 81 and the winding wheel 52. The lower rear sides of the backrest 3 are symmetrically welded with push rods 83 on the left and right. A third elastic member 84 is connected between the first fixing block 51 and the protective frame 53. The third elastic member 84 is a second scroll spring.

[0043] During the process of the backrest 3 rotating backward and downward, the backrest 3 will drive the push rod 83 to rotate backward together. During the process of the push rod 83 rotating backward, the push rod 83 will push the pulling block 81 forward, so that the pulling block 81 will pull the winding wheel 52 and the protective frame 53 backward through the pulling rope 82, causing the winding wheel 52 and the protective frame 53 to rotate, and the third elastic member 84 to deform. After the backrest 3 rotates backward 90 degrees, at this time the protective frame 53 is pulled backward 180 degrees by the pulling rope 82. In this way, when the backrest 3 rotates backward, it can automatically drive the protective frame 53 to rotate backward 180 degrees without the user manually rotating the protective frame 53. Then, during the process of the backrest 3 rotating in the reverse direction, the backrest 3 will drive the push rod 83 to rotate in the reverse direction together, and the push rod 83 no longer pushes the pulling block 81. Thus, the third elastic member 84 resets and drives the protective frame 53 and the winding wheel 52 to rotate in the reverse direction and reset. After the winding wheel 52 rotates in the reverse direction, it will wind up the pulling rope 82 and pull the pulling block 81 backward through the pulling rope 82 to reset.

[0044] Embodiment 3

[0045] Based on Embodiment 2, please refer to Figure 1 、 Figure 7 、 Figure 13 and Figure 14 , further comprising an opening mechanism 9, the opening mechanism 9 includes a stop block 91, a protection frame 92, a rack 93, a fourth elastic member 94, a gear 95 and a fifth elastic member 96. The bottom of each of the two first fixing blocks 51 is welded with a stop block 91. The back of the backrest 3 is symmetrically and slidably connected with racks 93 on the left and right. A fourth elastic member 94 is connected between the rack 93 and the backrest 3. The fourth elastic member 94 is a second spring. The back of the backrest 3 is symmetrically bolted with protection frames 92 on the left and right. The rack 93 is located inside the protection frame 92 and the rack 93 slidably penetrates the protection frame 92. Gears 95 are connected to the mutually remote sides of the two rotating frames 62. The gears 95 are engaged with the racks 93. A fifth elastic member 96 is connected between the rotating frame 62 and the second fixing block 61. The fifth elastic member 96 is the fifth elastic member 96.

[0046] During the process of the backrest 3 rotating backward and downward, the backrest 3 will drive the protection frame 92, the rack 93, the fourth elastic member 94, the gear 95, the fifth elastic member 96 and the protection mechanism 6 to rotate together. Then, during the rotation of the rack 93, it will contact the stopper 91 and be blocked by the stopper 91. Thus, under the continuous rotation of the rack 93, the rack 93 will be pushed by the stopper 91 towards the top of the backrest 3, and the fourth elastic member 94 will be stretched. Therefore, after the rack 93 moves towards the backrest 3, it will drive the rotating frame 62 and the protection frame 63 to rotate through the gear 95, and the fifth elastic member 96 will deform. After that, when the backrest 3 rotates backward by 90 degrees, at this time the protection frame 63 rotates by 270 degrees. In this way, when the backrest 3 rotates backward, it can automatically drive the protection frame 63 to rotate by 270 degrees without the user manually rotating the protection frame 63, which brings convenience to the user. After that, when the direction of the backrest 3 rotates, the backrest 3 will drive the protection frame 92, the rack 93, the fourth elastic member 94, the gear 95, the fifth elastic member 96 and the protection mechanism 6 to reverse. Then, during the reverse rotation of the rack 93, it will no longer be blocked by the stopper 91. Thus, the fourth elastic member 94 will reset and drive the rack 93 to move and reset away from the top of the backrest 3. After the rack 93 moves away from the backrest 3, it will drive the rotating frame 62 and the protection frame 63 to rotate in the reverse direction and retract through the gear 95. At the same time, under the action of the fifth elastic member 96, the fifth elastic member 96 will assist the protection frame 63 to rotate in the reverse direction and retract through the rotating frame 62.

[0047] Embodiment 4

[0048] On the basis of Embodiment 3, please view Figure 15 , and further includes a support mechanism 10. The support mechanism 10 includes a guide rail 101 and a support frame 102. The upper part of the seat cushion frame 2 is bolted with the guide rail 101, and the support frame 102 is slidably connected inside the guide rail 101.

[0049] When the backrest 3 rotates backward by 90 degrees, the user pushes the support frame 102 backward to a suitable position. At this time, the support frame 102 will contact and support the backrest 3, so as to increase the stability of the backrest 3, avoid damage to the motor 4 and the backrest 3 caused by the backrest 3 not bearing the weight of the child, and effectively ensure the safety of the child. After that, when the support for the backrest 3 is not needed, just pull the support frame 102 forward to reset it.

[0050] The above embodiments only represent the preferred embodiments of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations, improvements and substitutions can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A sustainable children's seat with an adjustable structure, comprising a base (1), a seat cushion frame (2) and a backrest (3). The base (1) is connected to the seat cushion frame (2), and the upper part of one side of the seat cushion frame (2) is rotatably connected to the backrest (3). It is characterized in that, It further includes a motor (4), a protection mechanism (5), a safeguard mechanism (6), and a shielding mechanism (7). A motor (4) for driving the backrest (3) to rotate is installed on one side of the upper part of the seat cushion frame (2). The output shaft of the motor (4) is connected to the backrest (3). A protection mechanism (5) for blocking both sides of the seat cushion frame (2) is provided on the seat cushion frame (2). A safeguard mechanism (6) for protecting a child's head is provided on the backrest (3). A shielding mechanism (7) for shielding a child's legs is provided on the seat cushion frame (2). The protection mechanism (5) includes a first fixing block (51), a wire winding wheel (52), and a protection frame (53). Two first fixing blocks (51) are connected to the upper part of the seat cushion frame (2). A protection frame (53) for preventing a child from falling off the seat cushion frame (2) is rotatably connected to one side of each of the two first fixing blocks (51) away from each other. A wire winding wheel (52) is connected to the bottom of the protection frame (53). The safeguard mechanism (6) includes a second fixing block (61), a rotating frame (62), and a safeguard frame (63). Two second fixing blocks (61) are connected to the top of the backrest (3). A rotating frame (62) is rotatably connected to each of the two second fixing blocks (61). A safeguard frame (63) for protecting a child is connected between the two rotating frames (62). The shielding mechanism (7) includes a third fixing block (71), a protection frame (72), a first elastic member (74), a frame body (75), a guiding frame (76), a buckle (77), a second elastic member (78), and a contact block (79). Two third fixing blocks (71) are connected to the upper part of the seat cushion frame (2). A frame body (75) is connected to the upper part of the seat cushion frame (2). The third fixing blocks (71) are located inside the frame body (75). A protection frame (72) is rotatably connected between the two third fixing blocks (71). Two square holes (73) for a child's legs to extend out are formed in the upper part of the protection frame (72). A first elastic member (74) is connected between the protection frame (72) and the third fixing block (71). Contact blocks (79) are connected to both sides of the protection frame (72). Guiding frames (76) are connected to both sides of the upper part of the seat cushion frame (2). A buckle (77) for clamping the protection frame (72) through the contact block (79) is slidably connected to the guiding frame (76). A second elastic member (78) is connected between the buckle (77) and the guiding frame (76). It further includes a rotating mechanism (8). The rotating mechanism (8) includes a pulling block (81), a pulling rope (82), a push rod (83), and a third elastic member (84). Two pulling blocks (81) are slidably connected to the upper part of the seat cushion frame (2). A pulling rope (82) wound around the wire winding wheel (52) is connected between the pulling block (81) and the wire winding wheel (52). The pulling rope (82) is used to pull the wire winding wheel (52). Two push rods (83) for pushing the pulling block (81) forward are connected to the back of the backrest (3). A third elastic member (84) is connected between the first fixing block (51) and the protection frame (53).

2. The sustainable children's seat with an adjustable structure according to claim 1, wherein, It further includes an opening mechanism (9), and the opening mechanism (9) includes a stop block (91), a protection frame (92), a rack (93), a fourth elastic member (94), a gear (95) and a fifth elastic member (96). Stop blocks (91) are connected to the bottoms of the two first fixing blocks (51). Two racks (93) are slidably connected to the back of the backrest (3). A fourth elastic member (94) is connected between the rack (93) and the backrest (3). Two protection frames (92) for protecting the rack (93) are connected to the back of the backrest (3). The rack (93) is located inside the protection frame (92) and the rack (93) slidably penetrates through the protection frame (92). Gears (95) are connected to the mutually remote sides of the two rotating frames (62). The gears (95) are engaged with the racks (93). A fifth elastic member (96) is connected between the rotating frame (62) and the second fixing block (61).

3. The sustainable children's seat with an adjustable structure according to claim 2, characterized in that, It further includes a support mechanism (10), and the support mechanism (10) includes a guide rail (101) and a support frame (102). A guide rail (101) is connected to the upper part of the seat cushion frame (2). A support frame (102) for supporting the backrest (3) is slidably connected inside the guide rail (101).

4. A sustainable children's seat with an adjustable structure according to claim 3, characterized in that, The upper part of the buckle (77) is a slope surface.

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