Child tricycle capable of being adjusted in multiple states

Abstract

The utility model relates to the field of buggy, and discloses a multi-state adjustable child tricycle which comprises a tricycle frame, the right side of the tricycle frame is fixedly connected with a rear support, the right end of the rear support is provided with a limiting groove, the inner wall of the right side of the limiting groove is elastically connected with a sliding column through a limiting spring, and the right side of the sliding column is fixedly connected with a limiting sleeve. A connecting groove is formed in the left side of the limiting sleeve, a fixing seat is fixedly connected to the right side of the limiting sleeve, a sliding ring is elastically connected to the inner wall of the fixing seat through a reset spring, and a fixing round sleeve is fixedly connected to the outer side of the sliding ring. According to the child tricycle, the rear wheel can be rotated to the inner side of the rear support by arranging the limiting sleeve, the sliding column and the limiting spring, meanwhile, the position of the rear wheel can be adjusted by arranging the fixing base and the reset spring, blocking can be prevented in the rotation process of the rear wheel, and therefore deformation of the child tricycle can be rapidly and conveniently completed, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the field of children's vehicles, in particular to a children's tricycle that can be adjusted in multiple states. Background Art

[0002] A children's tricycle is a three-wheeled toy vehicle designed specifically for toddlers, featuring excellent stability and safety. It is made of environmentally friendly materials, non-toxic and harmless, and has a round body design without sharp corners to protect the baby from harm. Riding a children's tricycle can exercise the baby's balance ability, coordination, and leg strength, contributing to their healthy growth.

[0003] After retrieval, the Chinese patent publication number: CN206750018U discloses a children's multi-functional transformable vehicle. The upper end of the seat adjustment rod is fixedly connected to the seat through a second adjustment screw. The rear end of the vehicle body main body is fixedly connected to the tricycle rear beam through a fixing screw. The two ends of the tricycle rear beam are respectively fixedly connected to the tricycle rear wheels through tricycle connecting rods. A balance bike rear wheel is arranged in the middle of the tricycle rear beam. Both ends of the balance bike rear wheel are respectively provided with a balance rear wheel metal connector and a balance bike rear wheel column. The balance bike rear wheel is connected to the installation hole arranged in the middle of the tricycle rear beam through the balance bike rear wheel column and fixed with a nut. It integrates a children's three-wheel pedal tricycle, a children's two-wheel balance bike, and a children's three-wheel drift bike. The vehicle body is designed in a split manner, and by replacing some accessories of the rear beam, it can be transformed into three different children's vehicles.

[0004] Although this utility model can be transformed from a tricycle into a balance bike, in actual use, the rear wheel needs to be disassembled and reinstalled to achieve the purpose of transformation. Transforming into a balance bike is relatively troublesome and difficult to install, and parents cannot quickly complete the transformation of the children's tricycle. On the other hand, the seat of the current children's tricycle is usually adjusted in gears, and it is possible that all gears are not suitable during use. Therefore, a children's tricycle that can be adjusted in multiple states is proposed to solve the above problems. Summary of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides a children's tricycle that can be adjusted in multiple states, aiming to improve the problems such as troublesome transformation operation and fewer gear settings for height adjustment in the prior art.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A children's tricycle with multi-state adjustment, including a frame. A rear bracket is fixedly connected to the right side of the frame. A limit groove is provided at the right end of the rear bracket. A sliding column is elastically connected to the inner wall on the right side of the limit groove through a limit spring. A limit sleeve is fixedly connected to the right side of the sliding column. A connection groove is provided on the left side of the limit sleeve. A fixed seat is fixedly connected to the right side of the limit sleeve. A sliding ring is elastically connected to the inner wall of the fixed seat through a return spring. A fixed circular sleeve is fixedly connected to the outer side of the sliding ring. A rear wheel is rotatably connected to the outer circumference of the fixed circular sleeve. A support assembly is arranged inside the fixed seat, and the support assembly is used to support the fixed circular sleeve.

[0007] As a further description of the above technical solution:

[0008] A sealing sleeve is fixedly connected to the top of the frame. A sealing slide column is slidably connected inside the sealing sleeve. A seat cushion is fixedly connected to the top of the sealing slide column. A connecting block is fixedly connected inside the sealing slide column. A threaded column is threadedly connected inside the connecting block. A worm gear is fixedly connected to the outer circumference of the threaded column. A worm is meshed inside the worm gear. A hand wheel is fixedly connected to the outer side of the worm.

[0009] As a further description of the above technical solution:

[0010] One end of the limit spring is fixedly connected to the inner wall on the right side of the limit groove, and the other end of the limit spring is in contact with the inner wall on the right side of the sliding column. The outer circumference of the sliding column is slidably connected inside the limit groove.

[0011] As a further description of the above technical solution:

[0012] The right end of the rear bracket is slidably connected inside the connection groove.

[0013] As a further description of the above technical solution:

[0014] One end of the return spring is fixedly connected to the inner wall of the fixed seat, and the other end of the return spring is fixedly connected to the inner side of the sliding ring. The outer circumference of the sliding ring is slidably connected inside the fixed seat.

[0015] As a further description of the above technical solution:

[0016] The outer circumference of the fixed circular sleeve is slidably connected inside the fixed seat.

[0017] As a further description of the above technical solution:

[0018] The support assembly includes a support column, the inner side of the support column is fixedly connected to the inner wall of the fixed seat, an anti-fouling piece is fixedly connected to the outer side of the support column, the outer periphery of the support column is rotatably connected to the inside of the fixed circular sleeve, and the anti-fouling piece does not contact the rear wheel.

[0019] As a further description of the above technical solution:

[0020] The bottom end of the threaded column is rotatably connected to the inner wall of the bottom surface of the sealing sleeve, and the outer periphery of the worm is rotatably connected to the inside of the sealing sleeve.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by arranging the limit sleeve, the sliding column and the limit spring, the rear wheel can be rotated to the inside of the rear bracket. At the same time, by arranging the fixed seat and the return spring, the position of the rear wheel can be adjusted to prevent obstruction during the rotation of the rear wheel, so that the deformation of the children's tricycle can be completed quickly and conveniently, and the use is relatively convenient.

[0023] 2. In the utility model, by arranging the worm gear, the worm and the threaded column, when the hand wheel is rotated, the connecting block can be driven to move upward, and the connecting block drives the seat cushion to move upward through the sealing slide column, so that the height of the seat cushion can be conveniently adjusted steplessly, the use is relatively convenient, and the applicability is relatively wide. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. 1 is an overall front view of a children's tricycle with multi-state adjustment proposed by the utility model;

[0025] Figure 2 FIG. 2 is a top sectional view of the rear bracket of a children's tricycle with multi-state adjustment proposed by the utility model;

[0026] Figure 3 FIG. 3 is a top sectional view of the fixed seat of a children's tricycle with multi-state adjustment proposed by the utility model;

[0027] Figure 4 FIG. 4 is a front sectional view of the sealing sleeve of a children's tricycle with multi-state adjustment proposed by the utility model.

[0028] Legend:

[0029] 1. Frame; 2. Rear bracket; 3. Limit groove; 4. Limit spring; 5. Sliding column; 6. Limit sleeve; 7. Connecting groove; 8. Fixed seat; 9. Return spring; 10. Sliding ring; 11. Fixed circular sleeve; 12. Rear wheel; 13. Support column; 14. Anti-fouling piece; 15. Sealing sleeve; 16. Sealing slide column; 17. Seat cushion; 18. Connecting block; 19. Threaded column; 20. Worm gear; 21. Worm; 22. Hand wheel. Detailed implementation mode

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Refer to Figure 1 - Figure 2 As shown in FIGS. - , an embodiment provided by the present invention: a children's tricycle capable of multi-state adjustment, including a frame 1 for fixing and connecting other components. A rear bracket 2 is fixedly connected to the right side of the frame 1. There are two groups of rear brackets 2, which are symmetrically arranged front and back. A limit groove 3 is opened at the right end of the rear bracket 2. A sliding column 5 is elastically connected to the right inner wall of the limit groove 3 through a limit spring 4. When the sliding column 5 is not stressed, the limit spring 4 will push the sliding column 5 to the left. One end of the limit spring 4 is fixedly connected to the right inner wall of the limit groove 3, and the other end of the limit spring 4 is in contact with the right inner wall of the sliding column 5. The outer circumference of the sliding column 5 is slidably connected inside the limit groove 3. The limit groove 3 restricts the sliding column 5 to slide only left and right along the inner wall of the limit groove 3. A limit sleeve 6 for connection and fixation is fixedly connected to the right side of the sliding column 5. A connection groove 7 is opened on the left side of the limit sleeve 6. The right end of the rear bracket 2 is slidably connected inside the connection groove 7. At this time, the rear bracket 2 and the limit sleeve 6 are connected and cannot rotate. A fixed seat 8 for connection and fixation is fixedly connected to the right side of the limit sleeve 6.

[0032] Refer to Figure 1 and Figure 3, a sliding ring 10 is elastically connected to the inner wall of the fixed seat 8 through a return spring 9. When the sliding ring 10 is not stressed, the return spring 9 will push the sliding ring 10 outward. One end of the return spring 9 is fixedly connected to the inner wall of the fixed seat 8, and the other end of the return spring 9 is fixedly connected to the inner side of the sliding ring 10. The outer circumference of the sliding ring 10 is slidably connected to the inside of the fixed seat 8. The fixed seat 8 restricts the sliding ring 10 to only slide back and forth along the inner wall of the fixed seat 8. A fixed circular sleeve 11 is fixedly connected to the outer side of the sliding ring 10. The outer circumference of the fixed circular sleeve 11 is slidably connected to the inside of the fixed seat 8. A rear wheel 12 that plays a supporting and moving role is rotatably connected to the outer circumference of the fixed circular sleeve 11. A support assembly is arranged inside the fixed seat 8. The support assembly is used to support the fixed circular sleeve 11 and improve the stability of the rotation of the rear wheel 12. The support assembly includes a support column 13. The inner side of the support column 13 is fixedly connected to the inner wall of the fixed seat 8. The outer circumference of the support column 13 is rotatably connected to the inside of the fixed circular sleeve 11 to provide support for the fixed circular sleeve 11. A dirt-proof piece 14 is fixedly connected to the outer side of the support column 13. The dirt-proof piece 14 does not contact the rear wheel 12. The dirt-proof piece 14 can block the gap at the connection between the inside and outside of the fixed circular sleeve 11 to prevent dust from entering and causing the rear wheel 12 to get stuck during rotation.

[0033] Referring to Figure 1 and Figure 4 , a sealing sleeve 15 is fixedly connected to the top end of the vehicle frame 1. A sealing slide column 16 is slidably connected to the inside of the sealing sleeve 15. A seat cushion 17 convenient for children to sit on is fixedly connected to the top end of the sealing slide column 16. A connecting block 18 that plays a fixed connection role is fixedly connected to the inside of the sealing slide column 16. There are two groups of connecting blocks 18, which are symmetrically arranged on the front and rear sides of the sealing slide column 16. A threaded column 19 is threadedly connected to the inside of the connecting block 18. The rotation of the threaded column 19 can drive the connecting block 18 to move up and down. The bottom end of the threaded column 19 is rotatably connected to the inner wall of the bottom surface of the sealing sleeve 15. A worm gear 20 is fixedly connected to the outer circumference of the threaded column 19. A worm 21 is meshed with the inner side of the worm gear 20. The rotation of the worm 21 can drive the worm gear 20 to move. The outer circumference of the worm 21 is rotatably connected to the inside of the sealing sleeve 15. A hand wheel 22 convenient for rotation is fixedly connected to the outer side of the worm 21.

[0034] Working principle: When it is desired to conveniently adjust the form of the tricycle to make it into the form of a scooter, the front limiting sleeve 6 is pulled to the right. The limiting sleeve 6 moves to the right and simultaneously drives the sliding column 5 to move to the right. When the limiting sleeve 6 is disengaged from the right end of the rear bracket 2, the limiting sleeve 6 is rotated 180 degrees. At this time, the limiting sleeve 6 drives the rear wheel 12 to rotate to the inside of the rear bracket 2. Then, the front rear wheel 12 is pushed forward, and the front rear wheel 12 moves forward along the inner wall of the fixed seat 8. At the same time, the rear limiting sleeve 6 is pulled and rotated 180 degrees. Then, the rear rear wheel 12 is pushed backward. At this time, a certain gap is generated between the front rear wheel 12 and the rear rear wheel 12, so that the rear rear wheel 12 is not blocked by the front rear wheel 12 when rotating. After the rotation is completed, the front and rear rear wheels 12 are released, and the return spring 9 releases its elasticity, causing the two groups of rear wheels 12 at the rear to move towards the middle, thus changing into the form of a scooter. When it is desired to adjust the height of the seat 17, the handwheel 22 is rotated. The handwheel 22 drives the worm 21 to rotate. The worm 21 drives the worm wheels 20 on the front and rear sides to rotate. The worm wheels 20 drive the threaded column 19 to rotate. The threaded column 19 drives the connecting block 18 to rise. The connecting block 18 drives the sealing sliding column 16 to rise, so that the seat 17 can be conveniently driven to rise.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A children's tricycle with multi-state adjustment, comprising a frame (1), characterized in that: A rear bracket (2) is fixedly connected to the right side of the frame (1). A limiting groove (3) is provided at the right end of the rear bracket (2). The inner wall on the right side of the limiting groove (3) is elastically connected to a sliding column (5) through a limiting spring (4). A limiting sleeve (6) is fixedly connected to the right side of the sliding column (5). A connecting groove (7) is provided on the left side of the limiting sleeve (6). A fixing seat (8) is fixedly connected to the right side of the limiting sleeve (6). A sliding ring (10) is elastically connected to the inner wall of the fixing seat (8) through a reset spring (9). A fixed circular sleeve (11) is fixedly connected to the outer side of the sliding ring (10). A rear wheel (12) is rotatably connected to the outer circumference of the fixed circular sleeve (11). A support assembly is provided inside the fixing seat (8), and the support assembly is used to support the fixed circular sleeve (11).

2. The multi-state adjustable children's tricycle according to claim 1, wherein: A sealing sleeve (15) is fixedly connected to the top of the frame (1). A sealing sliding column (16) is slidably connected inside the sealing sleeve (15). A seat cushion (17) is fixedly connected to the top of the sealing sliding column (16). A connecting block (18) is fixedly connected inside the sealing sliding column (16). A threaded column (19) is threadedly connected inside the connecting block (18). A worm gear (20) is fixedly connected to the outer circumference of the threaded column (19). A worm (21) is meshed inside the worm gear (20). A hand wheel (22) is fixedly connected to the outer side of the worm (21).

3. The children's tricycle capable of multi-state adjustment according to claim 1, wherein: One end of the limiting spring (4) is fixedly connected to the inner wall on the right side of the limiting groove (3), and the other end of the limiting spring (4) is in contact with the inner wall on the right side of the sliding column (5). The outer circumference of the sliding column (5) is slidably connected inside the limiting groove (3).

4. The children's tricycle capable of multi-state adjustment according to claim 1, wherein: The right end of the rear bracket (2) is slidably connected inside the connecting groove (7).

5. A multi-state adjustable children's tricycle according to claim 1, characterized in that: One end of the reset spring (9) is fixedly connected to the inner wall of the fixing seat (8), and the other end of the reset spring (9) is fixedly connected to the inner side of the sliding ring (10). The outer circumference of the sliding ring (10) is slidably connected inside the fixing seat (8).

6. The children's tricycle capable of multi-state adjustment according to claim 1, characterized in that: The outer circumference of the fixed circular sleeve (11) is slidably connected inside the fixing seat (8).

7. A multi-state adjustable children's tricycle according to claim 1, characterized in that: The support assembly includes a support column (13). The inner side of the support column (13) is fixedly connected to the inner wall of the fixing seat (8). An anti-fouling piece (14) is fixedly connected to the outer side of the support column (13). The outer circumference of the support column (13) is rotatably connected inside the fixed circular sleeve (11), and the anti-fouling piece (14) is not in contact with the rear wheel (12).

8. The children's tricycle capable of multi-state adjustment according to claim 2, characterized in that: The bottom end of the threaded column (19) is rotatably connected to the inner wall of the bottom surface of the sealing sleeve (15), and the outer circumference of the worm (21) is rotatably connected inside the sealing sleeve (15).

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