Adjustable child tricycle saddle

Abstract

The utility model discloses an adjustable child tricycle seat, which belongs to the technical field of child tricycles, and comprises two groups of frames, a storage box is fixedly arranged between the two groups of frames, a seat is arranged in the storage box in a sliding manner, a screw rod is in threaded connection with the interior of the seat, and the screw rod is in threaded connection with the interior of the seat. The screw rod is rotatably mounted on the inner wall of the bottom of the storage box, a short shaft is fixedly mounted at the bottom end of the screw rod and penetrates through the bottom of the storage box, and a worm gear is fixedly mounted on the outer side of the short shaft, so that the seat can be conveniently lifted, and the height of the seat can be adjusted to ensure that the seat is matched with the height of a child; by means of the technical scheme, comfortable riding experience is provided, the same tricycle can adapt to children of different ages, the service life of the tricycle is prolonged, soft cushions of different thicknesses or materials can be replaced in different seasons so as to adapt to season changes, the soft cushions can be conveniently maintained and cleaned, health and sanitation of the children are kept, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to an adjustable children's tricycle, belonging to the technical field of children's bicycles. Background Art

[0002] Children's tricycles are toys that are generally loved by preschool children. When purchasing, attention should be paid to the harmful elements in the surface coating that meet safety requirements. There should be no protrusions in the specified area of ​​the children's tricycle. Therefore, there is a tricycle on the market that can be pushed and ridden. When children ride it, the push handle must be folded down for children to ride. The tricycle must not have any pinching points that may cause injury. The gap between any movable parts that may be touched should be less than 5mm or greater than 12mm to prevent children from pinching their fingers. The seat is an essential accessory for children's riding.

[0003] The patent document with publication number CN217835854U discloses an adjustable children's tricycle seat, including a children's tricycle body, a storage groove is provided on the children's tricycle body, a seat cushion block is arranged in the storage groove, the top of the seat cushion block slides and extends out of the storage groove, an adjustment hole is provided at the bottom of the seat cushion block, a first threaded rod is rotatably installed on the bottom inner wall of the storage groove, the top end of the first threaded rod is threadedly extended into the adjustment hole, a fixing mechanism is arranged on the seat cushion block, and a drive assembly is arranged on the children's tricycle body.

[0004] The device in the above technical solution cannot quickly disassemble and install the cushion on the seat, and it is not convenient to replace the cushions of different thicknesses or materials according to different seasons to adapt to seasonal changes. It is also not convenient to maintain and clean the cushions, and cannot maintain the health and hygiene of children, which greatly reduces the practicality of the device. Therefore, we propose an adjustable children's tricycle seat to solve this problem. Utility Model Content

[0005] The utility model aims to provide an adjustable child tricycle seat to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The sprocket wheel is annularly fixed to the bottom of the sprocket wheel, and the sprocket wheel is arranged on the bottom of the sprocket wheel to move upwards to move the sprocket wheel towards the bottom of the sprocket wheel, so that the sprocket wheel and the sprocket wheel can move relative to each other.

[0008] Further preferably, springs are sleeved on the outer sides of the two groups of short rods, and the two ends of the two groups of springs are fixedly connected to the corresponding connecting plates and the inner wall of one side of the sliding groove respectively.

[0009] Further preferably, a protective shell is fixedly installed on the bottom of the storage box, the worm wheel and the worm are both arranged inside the protective shell, the worm is rotatably installed on the inner walls on both sides of the protective shell, one end of the worm is fixedly installed with a rotating shaft, and one end of the rotating shaft is fixedly installed with a rocker.

[0010] Further preferably, both sides of the two groups of connection plates are fixedly installed with limit blocks, and the four groups of limit blocks are respectively slidably installed inside the corresponding limit grooves.

[0011] Further preferably, a limit rod is fixedly mounted on the inner wall of the bottom of the storage box, and the limit rod is slidably mounted inside the seat.

[0012] Further preferably, two groups of connecting rods are fixedly installed on one side of the storage box, the same group of brackets 2 are fixedly installed on one side of the two groups of connecting rods, a connecting shaft 2 is rotatably installed on the side of the brackets 2 close to each other, two groups of wheels 2 are fixedly installed on the outer side of the connecting shaft 2, a support rod is fixedly installed inside the frame located on the front side, a bracket 1 is fixedly installed on the bottom of the support rod, a connecting shaft 1 is rotatably installed on the side of the brackets 1 close to each other, and a wheel 1 is fixedly installed on the outer side of the connecting shaft 1.

[0013] Further preferably, a long rod is fixedly mounted on the top of the support rod, two sets of handles are fixedly mounted on the outer side of the long rod, and a cushion is fixedly mounted on the top of the frame on the right side.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. The utility model is provided with a worm wheel, a worm, a rotating shaft, a rocker, a screw and a limit rod. By rotating the rocker, the rocker drives the rotating shaft to rotate, the rotating shaft drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the screw to rotate, and the screw drives the seat connected with the outer thread to move up and down, so that the seat can be raised and lowered. By adjusting the height of the seat, the seat can be matched with the height of the child, providing a comfortable riding experience, so that the same tricycle can be adapted to children of different ages, and its service life is extended;

[0016] 2. The utility model is provided with installation components, cushions, slide grooves and limit grooves. By pulling the pull plates on both sides of the seat, the pull plates drive the short rods and three groups of plug blocks to move, so that the six groups of plug blocks are respectively pulled out from both sides of the cushion, which is convenient for replacing cushions with different effects according to the season, and convenient for maintaining and cleaning the cushions. During installation, by loosening the pull plates on both sides, the six groups of plug rods are respectively movably inserted into the inside of the cushions under the resetting action of the springs, which is convenient for effectively fixing the cushions. Cushions of different thicknesses or materials can be replaced in different seasons to adapt to seasonal changes, and the cushions are convenient for maintenance and cleaning to keep children healthy and hygienic, greatly increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the storage box of the utility model;

[0019] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0020] Figure 4 It is a schematic diagram of the back structure of the utility model;

[0021] Figure 5 For this utility model Figure 3 A is a schematic diagram of the enlarged structure;

[0022] Figure 6 It is a schematic diagram of the soft cushion split structure of the utility model.

[0023] In the figure: 1. Bracket 1; 2. Wheel 1; 3. Frame; 4. Support rod; 5. Long rod; 6. Handle; 7. Cushion; 8. Mounting assembly; 801. Insert block; 802. Pull plate; 803. Limit block; 804. Spring; 805. Short rod; 806. Connecting plate; 9. Cushion; 10. Seat; 11. Storage box; 12. Connecting rod; 13. Bracket 2; 14. Wheel 2; 15. Screw; 16. Worm gear; 17. Worm; 18. Rocker; 19. Limit rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1

[0026] Reference Figure 1-6 A kind of adjustable children's tricycle seat comprises: two sets of frames 3, a storage box 11 is fixedly installed between the two sets of frames 3, a seat 10 is slidably installed inside the storage box 11, a screw rod 15 is threadedly connected to the inner wall of the bottom of the storage box 11, a short shaft is fixedly installed at the bottom end of the screw rod 15, the short shaft penetrates to the bottom of the storage box 11, a worm gear 16 is fixedly installed on the outer side of the short shaft, a worm 17 is arranged on one side of the worm gear 16, the worm gear 16 is meshed with the worm 17, a cushion 9 is movably installed on the top of the seat 10, and a slide groove and two sets of limit grooves are provided inside both sides of the seat 10 , the interior of the two groups of slide grooves are both provided with mounting components 8, and the mounting components 8 include: a connecting plate 806, the connecting plate 806 is slidably mounted inside the slide groove, a short rod 805 is fixedly mounted on one side of the connecting plate 806, a pull plate 802 is fixedly mounted on one side of the short rod 805, and three groups of plug blocks 801 are fixedly mounted on one side of the top of the pull plate 802, and the three groups of plug blocks 801 are all slidably plugged into the interior of the seat 10 and the cushion 9, and the outer sides of the two groups of short rods 805 are both sleeved with springs 804, and the two ends of the two groups of springs 804 are respectively fixedly connected to the corresponding connecting plate 806 and the inner wall of one side of the slide groove, so as to facilitate the resetting of the plug block 801.

[0027] By providing the spring 804, the worm wheel 16 and the worm 17, it is convenient to realize the self-locking function after the seat 10 is raised or lowered, thereby preventing the seat 10 from automatically descending, and it is convenient to reset the plug block 801, so that the cushion 9 can be quickly installed and then removed.

[0028] Example 2

[0029] In this embodiment, a protective shell is fixedly installed at the bottom of the storage box 11, and the worm wheel 16 and the worm 17 are both arranged inside the protective shell. The worm 17 is rotatably installed on the inner walls on both sides of the protective shell. A rotating shaft is fixedly installed at one end of the worm 17, and a rocker 18 is fixedly installed at one end of the rotating shaft to facilitate the rotation of the worm 17. Limiting blocks 803 are fixedly installed on both sides of the two groups of connecting plates 806, and the four groups of limiting blocks 803 are respectively slidably installed inside the corresponding limiting grooves to prevent the connecting plates 806 from detaching from the sliding grooves. A limiting rod 19 is fixedly installed on the inner wall at the bottom of the storage box 11, and the limiting rod 19 is slidably installed inside the seat 10 to prevent the seat 10 from rotating when it is raised or lowered. Two groups of connecting rods 12 are fixedly installed on one side of the storage box 11, and the same group of brackets 2 13 are fixedly installed on one side of the two groups of connecting rods 12. A connecting shaft 2 is rotatably installed on the side where the brackets 2 13 are close to each other, and two groups of wheels 2 14 are fixedly installed on the outside of the connecting shaft 2. A support rod 4 is fixedly installed inside the frame 3 on the front side, and a bracket 1 is fixedly installed on the bottom of the support rod 4, and a connecting shaft 1 is rotatably installed on the side where the brackets 1 are close to each other, and a wheel 2 is fixedly installed on the outside of the connecting shaft 1, a long rod 5 is fixedly installed on the top of the support rod 4, and two groups of handles 6 are fixedly installed on the outside of the long rod 5, and a cushion 7 is fixedly installed on the top of the frame 3 on the right side for easy use by children.

[0030] By providing the limiting rod 19, the limiting groove and the limiting block 803, the connecting plate 806 is prevented from being separated from the slide groove, and the seat 10 is prevented from rotating when being raised or lowered.

[0031] In this embodiment, when in use, by rotating the rocker 18, the rocker 18 drives the rotating shaft to rotate, so that the rotating shaft drives the worm 17 to rotate, so that the worm 17 drives the worm wheel 16 to rotate, so that the worm wheel 16 drives the screw rod 15 to rotate, so that the screw rod 15 drives the seat 10 connected to the outer thread to move up and down, which is convenient for lifting and lowering the seat 10 and is convenient for children of different heights to use. At this time, by pulling the pull plates 802 on both sides of the seat 10, the pull plates 802 drive the short rod 805 and the three groups of plug blocks 801 to move, so that the six groups of plug blocks 801 are respectively pulled out from both sides of the cushion 9, which is convenient for replacing cushions 9 with different effects according to the season, and is convenient for maintenance and cleaning of the cushion 9. During installation, by loosening the pull plates 802 on both sides, under the reset action of the spring 804, the six groups of plug rods are respectively movably plugged into the inside of the cushion 9, which is convenient for effective fixation of the cushion 9.

[0032] The above is a detailed introduction to an adjustable children's tricycle seat provided by the utility model. The principle and implementation method of the utility model are described in detail using specific embodiments. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An adjustable child tricycle seat, characterized in that: The invention comprises two groups of vehicle frames (3), a storage box (11) is fixedly installed between the two groups of vehicle frames (3), a seat (10) is slidably installed inside the storage box (11), a screw rod (15) is threadedly connected to the inside of the vehicle seat, the screw rod (15) is rotatably installed on the bottom inner wall of the storage box (11), a short shaft is fixedly installed at the bottom end of the screw rod (15), the short shaft penetrates the bottom of the storage box (11), a worm wheel (16) is fixedly installed on the outside of the short shaft, a worm (17) is arranged on one side of the worm wheel (16), the worm wheel (16) is meshed with the worm (17), and the top of the seat (10) is movable. A cushion (9) is movably installed, and a slide groove and two groups of limit grooves are provided inside both sides of the seat (10), and a mounting assembly (8) is provided inside the two groups of the slide grooves. The mounting assembly (8) includes: a connecting plate (806), the connecting plate (806) is slidably installed inside the slide groove, a short rod (805) is fixedly installed on one side of the connecting plate (806), a pull plate (802) is fixedly installed on one side of the short rod (805), and three groups of plug blocks (801) are fixedly installed on one side of the top of the pull plate (802), and the three groups of plug blocks (801) are all slidably inserted into the inside of the seat (10) and the cushion (9).

2. The adjustable child tricycle seat according to claim 1, characterized in that: The outer sides of the two groups of short rods (805) are sleeved with springs (804), and the two ends of the two groups of springs (804) are respectively fixedly connected to the corresponding connecting plates (806) and the inner wall of one side of the sliding groove.

3. The adjustable child tricycle seat according to claim 1, characterized in that: A protective shell is fixedly mounted on the bottom of the storage box (11); the worm wheel (16) and the worm (17) are both arranged inside the protective shell; the worm (17) is rotatably mounted on the inner walls of both sides of the protective shell; a rotating shaft is fixedly mounted on one end of the worm (17); and a rocker (18) is fixedly mounted on one end of the rotating shaft.

4. The adjustable child tricycle seat according to claim 1, characterized in that: Limit blocks (803) are fixedly installed on both sides of the two groups of connection plates (806), and the four groups of limit blocks (803) are slidably installed inside the corresponding limit grooves respectively.

5. The adjustable child tricycle seat according to claim 1, characterized in that: A limiting rod (19) is fixedly mounted on the inner wall of the bottom of the storage box (11), and the limiting rod (19) is slidably mounted inside the seat (10).

6. The adjustable child tricycle seat according to claim 1, characterized in that: Two groups of connecting rods (12) are fixedly installed on one side of the storage box (11), and the same group of brackets (13) are fixedly installed on one side of the two groups of connecting rods (12). A connecting shaft (2) is rotatably installed on the side of the brackets (13) close to each other, and two groups of wheels (14) are fixedly installed on the outer side of the connecting shaft (2). A support rod (4) is fixedly installed inside the frame (3) located at the front side, and a bracket (1) is fixedly installed on the bottom of the support rod (4). A connecting shaft (1) is rotatably installed on the side of the brackets (1) close to each other, and a wheel (2) is fixedly installed on the outer side of the connecting shaft (1).

7. The adjustable child tricycle seat according to claim 6, characterized in that: A long rod (5) is fixedly mounted on the top of the support rod (4), two sets of handles (6) are fixedly mounted on the outer side of the long rod (5), and a cushion (7) is fixedly mounted on the top of the frame (3) on the right side.

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