Wear-resistant PU wheel structure and swing car

Abstract

The utility model relates to the technical field of children's articles, in particular to a wear-resistant PU wheel structure and a swing car, the wear-resistant PU wheel structure comprises a car body, a front wheel main body, a steering wheel and a hexagonal sleeve, the steering wheel is arranged above the car body, the front wheel main body is arranged below the car body, and the hexagonal sleeve is respectively inserted into the car body, the steering wheel and the front wheel main body; the steering wheel and the front wheel body can be assembled on a vehicle body without using any tool, the steering wheel and the front wheel body can be assembled on the vehicle body without using any tool, and the steering wheel and the front wheel body are convenient to disassemble and assemble and convenient to use. The wheel arranged on the front wheel body is a PU pouring wheel, the wear resistance of the wheel is improved, the wheel is supported by a ball bearing arranged in the wheel and a shaft rod, the wheel cannot make contact with other parts, friction can be reduced while rotation is guaranteed, the wear-resisting effect is improved due to the arrangement of a metal wear-resisting piece, and the service life of the wheel is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of children's products, in particular to a wear-resistant PU wheel structure and a twisting car. Background Art

[0002] Children's twisting cars are important toys in children's growth process. They are widely used and popular. They can not only provide children with a lot of fun, but also exercise children's arm strength and upper limb flexibility. Even young children who are not yet able to walk can use twisting cars to "travel".

[0003] At present, the front wheel of a children's twisting car is connected to a steering wheel, and a hexagonal sleeve is passed through the steering wheel and the front wheel to restrict the steering wheel and the front wheel together. A bolt rod in the hexagonal sleeve passes through the hexagonal sleeve and extends to the outside of the steering wheel and the front wheel, and is fixed by bolts. When fixing the front wheel and the steering wheel of an existing twisting car, bolts are needed. If it needs to be fixed firmly, a tool for tightening nuts is needed. Generally, when the merchant does not provide tools, the seller seldom has matching tools, and the installation of the twisting car is more troublesome. Utility Model Content

[0004] The utility model aims to provide a wear-resistant PU wheel structure and a twisting car, so as to solve the problem in the above-mentioned background technology that the front wheel and the steering wheel of the existing twisting car need to be fixed with bolts. If they need to be fixed firmly, tools for tightening nuts are needed. Generally, merchants do not provide tools, and sellers seldom have matching tools, which makes the installation of the twisting car more troublesome.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: it includes a vehicle body, a front wheel body, a steering wheel, and a hexagonal sleeve, the steering wheel is arranged above the vehicle body, the front wheel body is arranged below the vehicle body, and the hexagonal sleeves are respectively inserted into the vehicle body, the steering wheel, and the front wheel body; the steering wheel and the front wheel body are respectively vertically slidably connected with a pushing block, and the steering wheel and the front wheel body are respectively horizontally slidably connected with two trapezoidal blocks, one side of the pushing block is vertically fixedly connected with two pressure rods, one end of the pressure rods is in contact with the inclined part of the trapezoidal block, one side of the trapezoidal block is fixedly connected with a snap ring, the two snap rings are fitted on the edge of the hexagonal sleeve, and a fixing plate is arranged on one side of the snap ring, one end of the fixing plate is inserted into the inside of the hexagonal sleeve, and a second guide block is arranged at the lower end of the trapezoidal block, and multiple second guide blocks are respectively slidably connected to the inside of the steering wheel and the front wheel body, and a reset spring is connected to the steering wheel and the inside of the front wheel body.

[0006] Preferably, the front wheel body includes an axle, a wheel, a limiting ring, a ball bearing, a nut, and a metal wear-resistant sheet. The axle is installed on the edge of the front wheel body, a ball bearing is arranged inside the wheel, a limiting ring is arranged inside the wheel, one end of the axle is inserted into the inner ring of the ball bearing through the limiting ring, the nut is threadedly connected to one end of the axle, the nut and the limiting ring are respectively located on both sides of the inner ring of the ball bearing, and the two metal wear-resistant sheets are respectively arranged between the limiting ring, the nut, and the ball bearing.

[0007] Preferably, a shielding cover is inserted into the top of the steering wheel, and first guide blocks are fixedly connected to both sides of the two pushing blocks. First guide grooves matching the first guide blocks are respectively opened inside the steering wheel and the front wheel body, and one end of the first guide block is inserted into the first guide groove.

[0008] Preferably, the steering wheel and the front wheel body are respectively provided with second guide grooves matching the second guide block, one end of the second guide block is inserted into the second guide groove, one end of the return spring is fixedly connected to the inner wall of the second guide groove, and the other end of the return spring is fixedly connected to the second guide block.

[0009] Preferably, a fixing hole matching the fixing plate is formed on the outer wall of the hexagonal sleeve, and one end of the fixing plate is inserted into the fixing hole.

[0010] Preferably, the steering wheel and the front wheel body are respectively provided with hexagonal openings matching with the hexagonal sleeves, and one end of the hexagonal sleeve is inserted into the hexagonal opening.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. Push the two push blocks inward to make the two trapezoidal blocks move to both sides respectively, insert the hexagonal sleeves into the steering wheel and the front wheel body respectively, loosen the push blocks to fix the steering wheel and the front wheel body, and the steering wheel and the front wheel body can be assembled on the car body without using any tools, which is convenient for disassembly and assembly and easy to use;

[0013] 2. The wheel on the front wheel body is a PU-infused wheel, which increases the wear resistance of the wheel. It is supported by the ball bearing and the shaft rod inside the wheel, and the nut and the limit ring are respectively located on the inner ring of the ball bearing, and will not contact other parts, ensuring rotation while reducing friction. Metal wear-resistant sheets are provided between the nut, the limit ring and the inner ring of the ball bearing to increase the wear resistance and further improve the service life of the wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2This is a schematic diagram of the structure of the car body of the utility model;

[0016] Figure 3 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0017] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the hexagonal sleeve of the utility model from top view;

[0019] Figure 6 It is a schematic diagram of the cross-sectional structure of the front wheel main body of the utility model.

[0020] In the figure: 1. vehicle body; 2. front wheel body; 21. shaft; 22. wheel; 23. limit ring; 24. ball bearing; 25. nut; 26. metal wear-resistant sheet; 3. steering wheel; 4. hexagonal sleeve; 5. shielding cover; 6. push block; 7. pressure rod; 8. first guide block; 9. trapezoidal block; 10. second guide block; 11. return spring; 12. snap ring; 13. fixing plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0022] See also Figure 1-6, as shown in the figure: This embodiment is a preferred implementation of the technical solution, a wear-resistant PU wheel structure and a twisting car, including a car body 1, a front wheel body 2, a steering wheel 3, and a hexagonal sleeve 4. The steering wheel 3 is arranged above the car body 1, and the front wheel body 2 is arranged below the car body 1. The hexagonal sleeve 4 is respectively inserted into the car body 1, the steering wheel 3, and the interior of the front wheel body 2; the steering wheel 3 and the interior of the front wheel body 2 are respectively vertically slidably connected with a pushing block 6, and the interior of the steering wheel 3 and the interior of the front wheel body 2 are respectively horizontally slidably connected with two trapezoidal blocks 9, and the pushing One side of the block 6 is vertically fixedly connected to two pressure rods 7, one end of the pressure rod 7 is in contact with the inclined part of the trapezoidal block 9, one side of the trapezoidal block 9 is fixedly connected to a snap ring 12, the two snap rings 12 are fitted on the edge of the hexagonal sleeve 4, and one side of the snap ring 12 is provided with a fixing plate 13, one end of the fixing plate 13 is inserted into the inside of the hexagonal sleeve 4, and a second guide block 10 is provided at the lower end of the trapezoidal block 9, and multiple second guide blocks 10 are respectively slidably connected to the inside of the steering wheel 3 and the front wheel body 2, and are connected to the steering wheel 3 and the inside of the front wheel body 2 with a return spring 11.

[0023] like Figure 1 , 2 As shown, the front wheel body 2 includes a shaft 21, a wheel 22, a limiting ring 23, a ball bearing 24, a nut 25, and a metal wear-resistant sheet 26. The shaft 21 is installed at the edge of the front wheel body 2, and the ball bearing 24 is arranged inside the wheel 22. The limiting ring 23 is arranged inside the wheel 22. One end of the shaft 21 is inserted into the inner ring of the ball bearing 24 through the limiting ring 23. The nut 25 is threadedly connected to one end of the shaft 21. The nut 25 and the limiting ring 23 are respectively located on both sides of the inner ring of the ball bearing 24. Two metal wear-resistant sheets 26 are respectively arranged in the limiting ring. The ball bearing 24 provided inside the wheel 22 is supported by the shaft 21, and a limiting ring 23 is provided at one end of the shaft 21, so that the nut 25 is threadedly connected to the shaft 21, and the nut 25 and the limiting ring 23 are respectively located on the inner ring of the ball bearing 24, and will not contact other parts, so that friction can be reduced during rotation. A metal wear-resistant sheet 26 is provided between the nut 25, the limiting ring 23 and the inner ring of the ball bearing 24 to increase the wear-resistant effect.

[0024] like Figure 2 , 4As shown, a shielding cover 5 is inserted into the top of the steering wheel 3, and first guide blocks 8 are fixedly connected to both sides of the two pushing blocks 6. First guide grooves matching the first guide blocks 8 are respectively opened inside the steering wheel 3 and the front wheel body 2, and one end of the first guide block 8 is inserted into the first guide groove. The shielding cover 5 provided on the top of the steering wheel 3 is used to cover the top notch of the steering wheel 3, and the first guide blocks 8 provided at both ends of the two pushing blocks 6 are respectively inserted into the first guide grooves opened inside the steering wheel 3 and the front wheel body 2, which are used to limit the two pushing blocks 6 to slide inside the steering wheel 3 and the front wheel body 2 respectively.

[0025] like Figure 2 , 4 As shown, second guide grooves matching the second guide block 10 are respectively opened inside the steering wheel 3 and the front wheel body 2, one end of the second guide block 10 is inserted in the second guide groove, one end of the return spring 11 is fixedly connected to the inner wall of the second guide groove, and the other end of the return spring 11 is fixedly connected to the second guide block 10, and the second guide blocks 10 provided on the multiple trapezoidal blocks 9 are respectively inserted in the second guide grooves opened inside the steering wheel 3 and the front wheel body 2, for limiting the lateral movement of the multiple trapezoidal blocks 9.

[0026] like Figure 5 As shown, a fixing hole matching the fixing plate 13 is opened on the outer wall of the hexagonal sleeve 4, and one end of the fixing plate 13 is inserted into the fixing hole. Through the fixing hole opened on the outer wall of the hexagonal sleeve 4, one end of the fixing plate 13 is inserted into the inside of the hexagonal sleeve 4.

[0027] like Figure 1 , 2 As shown, the steering wheel 3 and the front wheel body 2 are respectively provided with hexagonal openings matching with the hexagonal sleeve 4, one end of the hexagonal sleeve 4 is inserted into the hexagonal opening, and the hexagonal openings provided inside the steering wheel 3 and the front wheel body 2 match with the hexagonal sleeve 4, so as to constrain the steering wheel 3 and the front wheel body 2 together.

[0028] In this embodiment, firstly, the various parts are installed. When assembling the twisting car, firstly, the pushing block 6 on the front wheel body 2 is pushed toward the inside of the front wheel body 2, and the two pressing rods 7 respectively push the two trapezoidal blocks 9 to move to both sides, and the fixing holes opened on the edge of the hexagonal sleeve 4 correspond to the positions of the two fixing plates 13, and the hexagonal sleeve 4 is inserted into the front wheel. When the hexagonal sleeve 4 reaches the specified position, the fixing holes on the fixing plate 13 of the hexagonal sleeve 4 are opposite, and the pushing block 6 is released. The fixing plate 13 is pushed to be inserted into the hexagonal sleeve 4 by the elasticity of the reset spring 11, and the hexagonal sleeve 4 and the front wheel are completed. After fixing the main body 2, the upper end of the hexagonal sleeve 4 is inserted into the vehicle body 1 and extended upward, so that the upper end of the front wheel main body 2 fits with the lower end installation part of the vehicle body 1, and the pushing block 6 on the steering wheel 3 is pressed to sleeve the steering wheel 3 on the hexagonal sleeve 4. When the lower end of the steering wheel 3 contacts the upper end installation part of the vehicle body 1, the fixing plate 13 on the steering wheel 3 is opposite to the fixing hole at the upper end of the hexagonal sleeve 4. The pushing block 6 is loosened to fix the steering wheel 3, and the installation of the steering wheel 3 and the front wheel main body 2 is completed. The steering wheel 3 and the front wheel main body can be assembled on the vehicle body 1 without using any tools;

[0029] The wheel 22 provided on the front wheel body 2 is a PU-infused wheel, which is supported by a ball bearing 24 and an axle rod 21 provided inside the wheel 22. A limiting ring 23 is provided for limiting the installation position of the wheel 22. A thread is provided at one end of the axle rod 21, so that the nut 25 is threadedly connected to the axle rod 21, and the nut 25 and the limiting ring 23 are respectively located on the inner ring of the ball bearing 24 and will not contact other parts. Friction can be reduced while rotating. A metal wear-resistant sheet 26 is provided between the nut 25, the limiting ring 23 and the inner ring of the ball bearing 24 to increase the wear-resistant effect.

[0030] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make some simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A wear-resistant PU wheel structure and a twisting car, comprising a car body (1), a front wheel body (2), a steering wheel (3), and a hexagonal sleeve (4), wherein the steering wheel (3) is arranged above the car body (1), the front wheel body (2) is arranged below the car body (1), and the hexagonal sleeve (4) is respectively inserted into the car body (1), the steering wheel (3), and the front wheel body (2); the characteristics are: The steering wheel (3) and the front wheel body (2) are respectively connected to a push block (6) in a vertical sliding manner. The steering wheel (3) and the front wheel body (2) are respectively connected to two trapezoidal blocks (9) in a horizontal sliding manner. One side of the push block (6) is vertically fixedly connected to two pressure rods (7). One end of the pressure rod (7) contacts an inclined portion of the trapezoidal block (9). One side of the trapezoidal block (9) is fixedly connected to a snap ring (12). The two snap rings (12) are fitted on the edge of the hexagonal sleeve (4). A fixing plate (13) is provided on one side of the snap ring (12). One end of the fixing plate (13) is inserted into the inside of the hexagonal sleeve (4). A second guide block (10) is provided at the lower end of the trapezoidal block (9). The plurality of second guide blocks (10) are respectively connected to the inside of the steering wheel (3) and the front wheel body (2) in a sliding manner. A return spring (11) is connected to the inside of the steering wheel (3) and the front wheel body (2).

2. A wear-resistant PU wheel structure and a twisting car according to claim 1, characterized in that: The front wheel body (2) comprises a shaft (21), a wheel (22), a limiting ring (23), a ball bearing (24), a nut (25), and a metal wear-resistant sheet (26); the shaft (21) is mounted on the edge of the front wheel body (2); the wheel (22) is provided with a ball bearing (24); the wheel (22) is provided with a limiting ring (23); one end of the shaft (21) is inserted into the inner ring of the ball bearing (24) through the limiting ring (23); the nut (25) is threadedly connected to one end of the shaft (21); the nut (25) and the limiting ring (23) are respectively located on two sides of the inner ring of the ball bearing (24); and the two metal wear-resistant sheets (26) are respectively arranged between the limiting ring (23), the nut (25), and the ball bearing (24).

3. A wear-resistant PU wheel structure and a twisting car according to claim 1, characterized in that: A shielding cover (5) is inserted into the top of the steering wheel (3), and first guide blocks (8) are fixedly connected to both sides of the two pushing blocks (6). First guide grooves matching the first guide blocks (8) are respectively provided inside the steering wheel (3) and the front wheel body (2), and one end of the first guide block (8) is inserted into the first guide groove.

4. The wear-resistant PU wheel structure and the twisting car according to claim 1 are characterized by: The steering wheel (3) and the front wheel body (2) are respectively provided with second guide grooves matching the second guide block (10); one end of the second guide block (10) is inserted into the second guide groove; one end of the return spring (11) is fixedly connected to the inner wall of the second guide groove; and the other end of the return spring (11) is fixedly connected to the second guide block (10).

5. The wear-resistant PU wheel structure and the twisting car according to claim 1, characterized in that: The outer wall of the hexagonal sleeve (4) is provided with a fixing hole matching the fixing plate (13), and one end of the fixing plate (13) is inserted into the fixing hole.

6. The wear-resistant PU wheel structure and the twisting car according to claim 1, characterized in that: The steering wheel (3) and the front wheel body (2) are respectively provided with hexagonal openings matching the hexagonal sleeve (4), and one end of the hexagonal sleeve (4) is inserted into the hexagonal opening.

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