Portable bicycle child seat

Abstract

The utility model discloses a portable bicycle child seat, which relates to the field of bicycle seats, and has the technical scheme that the portable bicycle child seat comprises a seat main body, the seat main body comprises a seat cushion and two enclosures, the enclosures are connected with the side wall of the seat cushion in a sliding manner along the length direction of the seat cushion, and an accommodating space is formed between the seat cushion and the two enclosures. When a child sitting on the seat cushion is small in body shape, the two enclosures slide to be close to each other, at the moment, the containing space is gradually reduced, and the child small in body shape abuts against the two enclosures to be used for limiting the movement range; by sliding the two enclosures, the two enclosures are far away from each other, so that the containing space is gradually enlarged, a child with a large body shape can be contained to sit on the seat cushion and abut against the two enclosures respectively, and the safety of the child with the large body shape sitting on the seat body is improved; a child with a large size can sit in the child seat without replacing the child seat with a child seat without a fence, and the child seat is convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of bicycle seats, and more specifically, to a portable bicycle child seat. Background Art

[0002] When people travel in the short distance, they often use bicycles. Sometimes adults need to carry children to travel. Usually, a child seat is installed on the crossbar of the bicycle, and the child sits in the child seat, making the child feel more comfortable when riding a bicycle.

[0003] The existing child seats are provided with enclosures. The enclosures can limit the activity range of children with smaller body types and prevent children from falling off the child seats. However, when children with larger body types sit in the child seats, due to the existence of the enclosures, the children with larger body types will feel that the space in the child seats is very crowded, and there may even be a situation where they cannot sit in the child seats. Therefore, it is necessary to replace the child seats without enclosures so that the children with larger body types can sit in the child seats, which is rather inconvenient. Moreover, for children with larger body types, there will still be a situation of falling off the child seats when sitting on the child seats without enclosures.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a portable bicycle child seat.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: A portable bicycle child seat, including a seat body, the seat body includes a seat cushion and two enclosures. The two enclosures are located on both sides of the seat cushion and are symmetrically arranged. The enclosures are slidably connected to the side walls of the seat cushion along the length direction of the seat cushion. An accommodation space is formed between the seat cushion and the two enclosures. The two enclosures can slide close to or away from each other to adjust the size of the accommodation space.

[0007] Preferably, a receiving groove is formed in the side wall of the seat cushion. A sleeve is fixedly connected to the inner wall of the receiving groove. A sliding rod is slidably connected in the sleeve along the length direction of the seat cushion. An installation plate is arranged at the bottom of the enclosure. The bottom of the installation plate is detachably connected to the end of the sliding rod far away from the seat cushion. A clamping assembly is arranged on the outer peripheral wall of the sleeve for positioning the sliding rod in the sleeve.

[0008] Preferably, the clamping assembly includes a clamp, a cam handle, a screw rod and a nut. The clamp is installed on the outer peripheral wall of the sleeve away from the seat cushion. Two quick-release slots are symmetrically arranged on the outer peripheral wall of the sleeve away from the seat cushion. The screw rod passes through the clamp and is rotatably connected to the cam handle. The nut is threadedly connected to the screw rod, and the nut abuts against the clamp.

[0009] Preferably, the enclosure includes two symmetrically arranged semi-enclosing rods. The semi-enclosing rods are slidably connected to the top of the mounting plate along the width direction of the seat cushion. The two semi-enclosing rods can slide to approach or move away from each other.

[0010] Preferably, a chute is provided at the top of the mounting plate. A lead screw is rotatably connected in the chute. The lead screw includes a left lead screw and a right lead screw. One end of the left lead screw passes through the chute. The left lead screw is fixedly connected to the right lead screw and they are coaxially arranged. The helix direction of the left lead screw is opposite to that of the right lead screw. Threaded blocks are threadedly connected to the outer peripheral walls of the left lead screw and the right lead screw. The semi-enclosing rod is fixedly connected to the threaded block.

[0011] Preferably, the end of the sliding rod away from the seat cushion is processed into an external thread, and a threaded hole for threaded connection with the sliding rod is provided at the bottom of the mounting plate.

[0012] In summary, the present utility model has the following beneficial effects: In this solution, by providing two enclosures, and the two enclosures slide horizontally along the length direction of the seat cushion on both sides of the seat cushion respectively. When the seat body is in use, the bottom of the seat cushion is installed on the crossbar of the bicycle, and a child sits above the seat cushion. At this time, the child is located in the accommodation space formed by the seat cushion and the two enclosures. When the child is of a small size, by sliding the two enclosures to approach each other, at this time, both enclosures slide horizontally along the length direction of the seat cushion, and the accommodation space formed by the seat cushion and the two enclosures gradually decreases, so that the child of a small size is located in a smaller accommodation space and abuts against the two enclosures respectively to limit the activity range of the child and prevent the child of a small size from falling from the seat body. When the child is of a large size, by sliding the two enclosures to move away from each other, at this time, the distance between the two enclosures gradually increases and the accommodation space gradually increases, so that the child of a large size can be accommodated in a larger accommodation space and also abuts against the two enclosures, improving the safety of the child of a large size sitting on the seat body. There is no need to replace the child seat without enclosures to allow the child of a large size to sit in the child seat, which is more convenient, and thus it can be suitable for children of different sizes. Description of the Drawings

[0013] Figure 1 is a partial exploded view of the present utility model;

[0014] Figure 2This is a schematic structural view when two enclosures of the present utility model move away from each other;

[0015] Figure 3 This is an exploded view of a semi - fence rod and a mounting plate of the present utility model;

[0016] Figure 4 This is a schematic connection view of a sleeve, a sliding rod and a clamping assembly of the present utility model.

[0017] In the figure: 1, seat cushion; 2, enclosure; 3, receiving groove; 4, sleeve; 5, sliding rod; 6, mounting plate; 7, clamp; 8, cam handle; 9, screw; 10, nut; 11, quick - release groove; 12, semi - fence rod; 13, sliding groove; 14, left lead screw; 15, right lead screw; 16, threaded block; 17, threaded hole. Specific embodiments

[0018] The following combines the drawings and embodiments to describe the present utility model in detail.

[0019] Embodiment:

[0020] A portable bicycle child seat, as Figures 1 to 4 shown, includes a seat body. The seat body includes a seat cushion 1 and two enclosures 2. There is a gap between the top of the seat cushion 1 and the enclosures 2. The enclosures 2 are arranged in a C - shape. The two enclosures 2 are located on both sides of the seat cushion 1 and are symmetrically arranged. The enclosures 2 are slidably connected to the side wall of the seat cushion 1 along the length direction of the seat cushion 1. An accommodation space is formed between the seat cushion 1 and the two enclosures 2. The two enclosures 2 can approach or move away from each other by sliding to adjust the size of the accommodation space. The side wall of the seat cushion 1 is provided with two receiving grooves 3, which are located on both sides of the seat cushion 1. The inner wall of the receiving groove 3 is bonded with a sleeve 4. A sliding rod 5 is slidably connected in the sleeve 4 along the length direction of the seat cushion 1. The bottom of the enclosure 2 is provided with a mounting plate 6. The bottom of the mounting plate 6 is detachably connected to the end of the sliding rod 5 away from the seat cushion 1. The outer peripheral wall of the sleeve 4 is provided with a clamping assembly for positioning the sliding rod 5 in the sleeve 4. The clamping assembly is located outside the receiving groove 3. The clamping assembly includes a clamp 7, a cam handle 8, a screw 9 and a nut 10. The clamp 7 is installed on the outer peripheral wall of the sleeve 4 away from the seat cushion 1 by screws. The outer peripheral wall of the sleeve 4 away from the seat cushion 1 is provided with two symmetrically arranged quick - release grooves 11. The clamp 7 and the inner wall of the quick - release groove 11 are arranged in alignment, and both the clamping assembly and the quick - release groove 11 are located outside the receiving groove 3. The screw 9 passes through the clamp 7 and is rotatably connected to the cam handle 8. The nut 10 is threadedly connected to the screw 9, and the nut 10 abuts against the clamp 7. The end of the sliding rod 5 away from the seat cushion 1 is processed into an external thread. The bottom of the mounting plate 6 is provided with a threaded hole 17 for threadedly connecting with the sliding rod 5.

[0021] When the seat body is in use, the bottom of the seat cushion 1 is installed on the crossbar of the bicycle through bolts. A child sits above the seat cushion 1. When the child is of a relatively small size, hold and slide the two enclosures 2 by hand to make them move horizontally towards the seat cushion 1. At this time, the two enclosures 2 gradually approach each other, and when the enclosures 2 move, they drive the sliding rod 5 and the mounting plate 6 towards the seat cushion 1 respectively. At this time, the sliding rod 5 gradually slides into the sleeve 4, and the contact area between the sliding rod 5 and the inner peripheral wall of the sleeve 4 gradually increases. At the same time, the accommodation space formed by the seat cushion 1 and the two enclosures 2 gradually decreases. When the distance between the two enclosures 2 decreases to be suitable for a child with a relatively small size, first rotate the nut 10 to make it rotate on the outer peripheral wall of the screw rod 9 until the nut 10 abuts against the clamp 7, and then rotate the cam handle 8 to make it rotate towards the clamp 7 until the cam handle 8 fits against the outer wall of the clamp 7. When the cam handle 8 rotates towards the clamp 7, it will push the clamp 7, so that the clamp 7 gradually squeezes the end of the sleeve 4 away from the seat cushion 1. Due to the existence of the two quick-release grooves 11, the end of the sleeve 4 away from the seat cushion 1 is gradually squeezed and deformed, and the inner walls on both sides of the quick-release groove 11 gradually approach each other. At the same time, the inner peripheral wall of the end of the sleeve 4 away from the seat cushion 1 gradually presses against and squeezes the sliding rod 5, and the sliding rod 5 is clamped and locked in the sleeve 4 through friction, which can provide a clamping force for the sliding rod 5 and improve the stability of the sliding rod 5 after sliding in the sleeve 4. And only by rotating the nut 10 and the cam handle 8 can the sliding length of the sliding rod 5 in the sleeve 4 be quickly adjusted, thereby improving the stability after the two enclosures 2 approach each other, so that a child with a relatively small size can be located in a smaller accommodation space, and the child abuts against the two enclosures 2 respectively to limit the activity range of the child and prevent the child with a relatively small size from falling off the seat body.

[0022] When the child is of a relatively large size and the distance between the two enclosures 2 is relatively small, first rotate the cam handle 8 in a direction away from the clamp 7, and then rotate the nut 10 so that it does not contact the clamp 7. At this time, the end of the sleeve 4 away from the seat cushion 1 gradually returns to its original shape, so that the clamp 7 does not squeeze and deform the end of the sleeve 4 away from the seat cushion 1, and the inner peripheral wall of the sleeve 4 does not press against and squeeze the sliding rod 5. Then, the two enclosures 2 can be slid respectively to move away from each other in a direction away from the seat cushion 1. At this time, when the enclosures 2 slide, they drive the mounting plate 6 and the enclosures 2 to move away from the seat in the direction away from the seat, and the contact area between the sliding rod 5 and the inner peripheral wall of the sleeve 4 gradually decreases. At the same time, the distance between the two enclosures 2 gradually increases and the accommodating space gradually enlarges. When the distance between the two enclosures 2 increases to be suitable for a child of a relatively large size, then rotate the nut 10 and the cam handle 8 respectively, so that the nut 10 contacts the clamp 7, and the cam handle 8 rotates in a direction close to the clamp 7 and pushes the clamp 7, so that the clamp 7 squeezes the end of the sleeve 4 away from the seat cushion 1 until the inner peripheral wall of the end of the sleeve 4 away from the seat presses against and squeezes the sliding rod 5, improving the stability after the two enclosures 2 move away from each other. Thus, a child of a relatively large size can be accommodated in a larger accommodating space, and the child of a relatively large size also contacts the two enclosures 2. At this time, although there will be a gap between the two enclosures 2, this gap is not large enough for the child of a relatively large size to fall from between the two enclosures 2, improving the safety of the child of a relatively large size sitting on the seat body. There is no need to replace the child seat without the enclosures 2 to allow the child of a relatively large size to sit in the child seat, which is more convenient and can be suitable for children of different sizes.

[0023] When it is necessary to disassemble the enclosure 2 from the seat cushion 1 for storing the seat body, first remove the seat cushion 1 from the bicycle beam by removing the bolts, and then rotate the mounting plate 6 to drive the enclosure 2 to rotate, so that the end of the sliding rod 5 away from the seat cushion 1 gradually disengages from the threaded hole 17, and the enclosure 2 does not contact the seat cushion 1 when rotating, thus facilitating the disassembly of the mounting plate 6 and the enclosure 2 from the seat cushion 1 for storing the seat body.

[0024] The enclosure 2 includes two semi-enclosing rods 12 arranged symmetrically. The semi-enclosing rods 12 are slidably connected to the top of the mounting plate 6 along the width direction of the seat cushion 1. The two semi-enclosing rods 12 can be slid to approach or move away from each other. A chute 13 is formed at the top of the mounting plate 6. The length of the chute 13 is less than the length of the mounting plate 6, and the chute 13 is not communicated with the side wall of the mounting plate 6. A lead screw is rotatably connected in the chute 13. The lead screw includes a left lead screw 14 and a right lead screw 15. One end of the left lead screw 14 passes through the chute 13, and the other end of the left lead screw 14 is located outside the chute 13. The right lead screw 15 is accommodated in the chute 13 and rotates in the chute 13. The left lead screw 14 is welded to the right lead screw 15 and they are coaxially arranged. The outer peripheral walls of the left lead screw 14 and the right lead screw 15 are both processed into external threads, and the helix direction of the left lead screw 14 is opposite to the helix direction of the right lead screw 15. Threaded blocks 16 are threadedly connected to the outer peripheral walls of the left lead screw 14 and the right lead screw 15. The threaded blocks 16 are in contact with the inner wall of the chute 13. The inner peripheral wall of the threaded block 16 is processed into an internal thread that matches the external thread of the left lead screw 14 or the right lead screw 15. The semi-enclosing rod 12 is bonded to the threaded block 16.

[0025] When some children with larger body sizes still feel crowded when sitting on the seat cushion 1 after increasing the distance between the two enclosures 2 by sliding them, by rotating the left lead screw 14 clockwise to drive the right lead screw 15 to rotate in the same direction. When the left lead screw 14 and the right lead screw 15 rotate clockwise, they respectively drive the threaded blocks 16 on them to move in the chute 13. One threaded block 16 moves on the outer peripheral wall of the left lead screw 14, and the other threaded block 16 moves on the outer peripheral wall of the right lead screw 15. Because the helix direction of the left lead screw 14 is opposite to the helix direction of the right lead screw 15, when the left lead screw 14 and the right lead screw 15 rotate clockwise, the two threaded blocks 16 are driven to move away from each other. When the two threaded blocks 16 move away from each other, they respectively drive the two semi-enclosing rods 12 to move. At this time, the two semi-enclosing rods 12 move away from each other along the width direction of the seat cushion 1, increasing the distance between the two semi-enclosing rods 12. However, the distance between the two semi-enclosing rods 12 is not sufficient for the children with larger body sizes to fall. Thus, the children with larger body sizes respectively contact the four semi-enclosing rods 12 to prevent them from falling off the seat cushion 1, further increasing the spaciousness after the children with larger body sizes are surrounded by the two enclosures 2. By rotating the left lead screw 14 counterclockwise to drive the right lead screw 15 to rotate in the same direction, the two threaded blocks 16 can be made to approach each other for the two semi-enclosing rods 12 to approach each other.

[0026] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A portable bicycle child seat, comprising a seat body, characterized in that: The seat body includes a seat cushion (1) and two enclosures (2). The two enclosures (2) are located on both sides of the seat cushion (1) and are symmetrically arranged. The enclosures (2) are slidably connected to the side walls of the seat cushion (1) along the length direction of the seat cushion (1). An accommodation space is formed between the seat cushion (1) and the two enclosures (2). The two enclosures (2) can approach or move away from each other by sliding to adjust the size of the accommodation space.

2. The portable bicycle child seat according to claim 1, wherein: A receiving groove (3) is formed in the side wall of the seat cushion (1). A sleeve (4) is fixedly connected to the inner wall of the receiving groove (3). A sliding rod (5) is slidably connected to the sleeve (4) along the length direction of the seat cushion (1). An installation plate (6) is provided at the bottom of the enclosure (2). The bottom of the installation plate (6) is detachably connected to the end of the sliding rod (5) away from the seat cushion (1). A clamping assembly is provided on the outer peripheral wall of the sleeve (4) for positioning the sliding rod (5) in the sleeve (4).

3. The portable bicycle child seat according to claim 2, characterized in that: The clamping assembly includes a clamp (7), a cam handle (8), a screw rod (9) and a nut (10). The clamp (7) is installed on the outer peripheral wall of the sleeve (4) away from the seat cushion (1). Two symmetrically arranged quick-release grooves (11) are formed in the outer peripheral wall of the sleeve (4) away from the seat cushion (1). The screw rod (9) passes through the clamp (7) and is rotatably connected to the cam handle (8). The nut (10) is threadedly connected to the screw rod (9), and the nut (10) abuts against the clamp (7).

4. A portable bicycle child seat according to claim 2, wherein: The enclosure (2) includes two symmetrically arranged semi-enclosing rods (12). The semi-enclosing rods (12) are slidably connected to the top of the installation plate (6) along the width direction of the seat cushion (1). The two semi-enclosing rods (12) can approach or move away from each other by sliding.

5. A portable bicycle child seat according to claim 4, characterized in that: A chute (13) is formed in the top of the installation plate (6). A lead screw is rotatably connected in the chute (13). The lead screw includes a left lead screw (14) and a right lead screw (15). One end of the left lead screw (14) passes through the chute (13). The left lead screw (14) is fixedly connected to the right lead screw (15) and they are coaxially arranged. The helix direction of the left lead screw (14) is opposite to the helix direction of the right lead screw (15). Threaded blocks (16) are threadedly connected to the outer peripheral walls of the left lead screw (14) and the right lead screw (15). The semi-enclosing rod (12) is fixedly connected to the threaded block (16).

6. A portable bicycle child seat according to claim 2, wherein: The end of the sliding rod (5) away from the seat cushion (1) is processed into an external thread. A threaded hole (17) for threadedly connecting with the sliding rod (5) is formed in the bottom of the installation plate (6).

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