Child tricycle with folding storage function

Abstract

A child tricycle with folding and storage functions comprises a connecting seat, a front hinge lug is arranged at the front end of the connecting seat, and a front hinge seat arranged at the tail of a front fork is movably hinged and installed in the front hinge lug; the front fork swings relative to the front hinge lug through the front hinge base, and folding of the front fork is achieved. The rear hinge lug is arranged at the rear end of the connecting seat, and the rear hinge seat arranged at the front end of the frame is movably hinged and mounted in the rear hinge lug; the frame swings relative to the rear hinge lugs through the rear hinge seats, and folding of the frame is achieved. The child tricycle has the advantages that the front hinged seat and the rear hinged seat are designed, so that the front fork and the tricycle frame can swing around the hinged lugs respectively, and rapid, simple and convenient folding is achieved. The folded tricycle is compact in structure, the occupied space of the tricycle can be greatly reduced, a user can conveniently store the tricycle at home or carry the tricycle when going out, and the tricycle is particularly suitable for being used in a narrow living environment.

Description

Technical Field

[0001] The utility model relates to a children's tricycle, in particular to a children's tricycle with a folding and storage function. Background Art

[0002] As a common children's transportation tool, children's tricycles are widely used in children's daily travel and play activities. Traditional children's tricycles have the advantages of simplicity, lightness, and easy operation. However, with the changes in lifestyle and the diversification of usage scenarios, parents' requirements for children's tricycles are gradually increasing. They not only hope to provide a safe and comfortable travel tool but also expect the children's tricycle to have convenient storage and carrying functions to adapt to more usage scenarios, such as traveling or shopping on the street.

[0003] Most of the existing children's tricycles adopt a fixed frame structure and cannot be folded, resulting in the following main disadvantages during use:

[0004] 1. Since the frame of the traditional children's tricycle is usually fixed and cannot be folded, it occupies a large space. This causes great inconvenience to users when storing at home or carrying when going out, especially in a narrow living environment or when it needs to be transported by vehicle. The volume of the tricycle limits its convenience.

[0005] 2. During outdoor activities, such as traveling or short trips, it is very troublesome to carry a children's tricycle with a fixed structure. Parents usually need additional transportation tools or support equipment to transport such vehicles, resulting in inconvenience during travel and increasing the burden on the family.

[0006] 3. Existing tricycles cannot be folded and are only suitable for use at home or in nearby outdoor places, and cannot effectively adapt to usage scenarios that require frequent movement or long distances. This makes parents often need to consider its convenience when deciding whether to carry the tricycle, restricting the usage occasions and scenarios of the product.

[0007] 4. Some existing technologies attempt to solve the carrying problem by disassembling the frame or components, but this usually leads to a complex installation and disassembly process, and even affects the stability and safety of the vehicle after repeated operations, increasing the potential danger when children use it. Therefore, it is necessary to make further improvements. Summary of the Utility Model

[0008] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a children's tricycle with a folding and storage function that is structurally compact, easy to fold and store, can not only meet the usage needs of the family but also adapt to the convenient carrying requirements during outdoor activities, and ensure the safety and stability of the vehicle during folding and unfolding operations.

[0009] The object of the present utility model is achieved in the following manner: A children's tricycle with a folding and storage function, which includes a connecting seat. A front hinge ear is provided at the front end of the connecting seat, and a front hinge seat provided at the tail of the front fork is movably hinged and installed within the front hinge ear; the front fork swings relative to the front hinge ear through the front hinge seat to achieve the folding of the front fork;

[0010] It further includes a rear hinge ear provided at the rear end of the connecting seat, and a rear hinge seat provided at the front end of the frame is movably hinged and installed within the rear hinge ear; the frame swings relative to the rear hinge ear through the rear hinge seat to achieve the folding of the frame;

[0011] A locking device is further provided within the connecting seat, and the locking device locks the relative positions between the front hinge seat and the rear hinge seat and the connecting seat.

[0012] Furthermore: The locking device includes a plurality of first teeth provided on the outer edge of the front hinge seat, and a first locking tooth installed within the connecting seat. The first locking tooth meshes with or disengages from the first teeth under the drive of a locking knob;

[0013] The locking device further includes a plurality of second teeth provided on the outer edge of the rear hinge seat, and a second locking tooth installed within the connecting seat. The second locking tooth meshes with or disengages from the second teeth under the drive of the locking knob.

[0014] Furthermore: The first locking tooth is provided at the front part of a first slider. A first driving groove is provided on the first slider, and an eccentric block is provided on the locking knob. The eccentric block and the first driving groove press against each other to drive the first slider to move.

[0015] Furthermore: The second locking tooth is provided at the rear part of a second slider. A second driving groove is provided on the second slider, and an eccentric block is provided on the locking knob. The eccentric block and the second driving groove press against each other to drive the second slider to move.

[0016] Furthermore: A guiding groove is provided within the connecting seat, and the first locking tooth and the second locking tooth are slidably installed within this guiding groove.

[0017] Furthermore: The connecting seat includes a first clamping portion and a second clamping portion which are oppositely arranged. The first clamping portion and the second clamping portion respectively clamp and fix the two sides of the front hinge seat and the rear hinge seat.

[0018] Furthermore: A first hinge hole is provided on the first clamping portion, a second hinge hole is provided on the front hinge seat, a third hinge hole is provided on the second clamping portion. A first hinge shaft passes through the first hinge hole and is butt - jointed with the second hinge hole, a second hinge shaft passes through the third hinge hole and is butt - jointed with the second hinge hole, and a first locking bolt passes through the first hinge shaft and is connected to a first locking nut provided within the second hinge shaft.

[0019] Furthermore, a fourth hinge hole is provided on the first clamping portion, a fifth hinge hole is provided on the rear hinge seat, a sixth hinge hole is provided on the second clamping portion, a third hinge shaft passes through the fourth hinge hole and docks with the fifth hinge hole, a fourth hinge shaft passes through the sixth hinge hole and docks with the fifth hinge hole, and a second locking bolt passes through the third hinge shaft and is connected to a second locking nut provided inside the fourth hinge shaft.

[0020] Furthermore, a concave accommodating area is provided on the second clamping portion, and the locking knob is rotatably installed in the accommodating area.

[0021] The beneficial effects of the present utility model are as follows: 1. The structure is simple, the production cost is low, and the market competitiveness is improved.

[0022] 2. By designing the front hinge seat and the rear hinge seat, the front fork and the frame can swing around the hinge ears respectively, realizing fast and simple folding. The folded tricycle has a compact structure, can significantly reduce its occupied space, is convenient for users to store at home or carry when going out, and is especially suitable for use in a narrow living environment.

[0023] 3. Through the innovative folding design, parents can easily fold the tricycle into a portable shape without additional tools or complex disassembly and assembly steps. The volume of the tricycle is significantly reduced after folding and can be easily placed in the trunk of a car, solving the problem that traditional tricycles are difficult to carry due to their large volume and greatly improving the convenience when the family goes out.

[0024] 4. The present utility model designs a locking device. Through the locking structure of the front and rear hinge seats and the connecting seat, the stability of the front fork and the frame during folding and unfolding is ensured. The addition of the locking knob can firmly lock each hinge point, prevent accidental loosening or movement during use, thereby improving the safety of the product and avoiding potential safety hazards caused by loose folding structures.

[0025] 5. Through reasonable hinge and locking designs, users can quickly complete the folding and unfolding of the tricycle. The operation is very simple and convenient, suitable for daily use. At the same time, the eccentric block design driven by the locking knob ensures that the locking device can work stably and reliably, enabling the frame and the front fork to maintain a stable state during folding and unfolding.

[0026] 6. The folding tricycle of the present utility model is not only suitable for use at home, but also can be widely applied to various scenarios such as traveling and shopping when going out, especially suitable for situations where frequent movement is required. Its portability and convenient storage characteristics significantly improve the usage scenarios and frequencies of the tricycle, meeting the diverse needs of modern families. Description of the Drawings

[0027] Figure 1This is a diagram showing the tricycle of the present utility model in the unfolded and in-use state.

[0028] Figure 2 This is a structural cross-sectional view of the tricycle of the present utility model in the unfolded and in-use state.

[0029] Figure 3 In the present utility model Figure 2 is an enlarged view of the structure of part A.

[0030] Figure 4 This is a diagram showing the tricycle of the present utility model in the unfolded and in-use state.

[0031] Figure 5 This is a structural cross-sectional view of the tricycle of the present utility model in the unfolded and in-use state.

[0032] Figure 6 In the present utility model Figure 5 is an enlarged view of the structure of part B.

[0033] Figure 7 、 8 This is an exploded view of the structure of the present utility model.

[0034] Figure 9 This is an exploded view of the structure of the locking knob, the first slider and the second slider in the present utility model. Detailed implementation manners

[0035] The following further specifically describes the present utility model with reference to the accompanying drawings. A children's tricycle with a folding and storage function includes a connecting seat 1. A front hinge ear 2 is provided at the front end of the connecting seat 1. A front hinge seat 4 provided at the tail of the front fork 3 is movably hinged and installed in the front hinge ear 2. The front fork 3 swings relative to the front hinge ear 2 through the front hinge seat 4 to realize the folding of the front fork 3;

[0036] It further includes a rear hinge ear 5 provided at the rear end of the connecting seat 1. A rear hinge seat 7 provided at the front end of the vehicle frame 6 is movably hinged and installed in the rear hinge ear 5. The vehicle frame 6 swings relative to the rear hinge ear 5 through the rear hinge seat 7 to realize the folding of the vehicle frame 6;

[0037] A locking device is further provided in the connecting seat 1 to lock the relative positions between the front hinge seat 4 and the rear hinge seat 7 and the connecting seat 1.

[0038] In one embodiment: The locking device includes a plurality of first teeth 41 provided on the outer edge of the front hinge seat 4, and a first locking tooth 8 installed in the connecting seat 1. The first locking tooth 8 meshes with or disengages from the first teeth 41 under the drive of the locking knob 10;

[0039] The described locking device further includes a plurality of second teeth 71 provided on the outer edge of the rear hinge seat 7, and a second locking tooth 9 installed in the connecting seat 1. The second locking tooth 9 engages or disengages with the second teeth 71 under the drive of the locking knob 10.

[0040] In one embodiment: the first locking tooth 8 is provided at the front of the first slider 81. A first driving groove 82 is provided on the first slider 81, and an eccentric block 101 is provided on the locking knob 10. The eccentric block 101 and the first driving groove 82 are pressed against each other to drive the first slider 81 to move.

[0041] In one embodiment: the second locking tooth 9 is provided at the rear of the second slider 91. A second driving groove 93 is provided on the second slider 91, and an eccentric block 101 is provided on the locking knob 10. The eccentric block 101 and the second driving groove 93 are pressed against each other to drive the second slider 91 to move.

[0042] In one embodiment: a guiding groove 11 is provided in the connecting seat 1, and the first locking tooth 8 and the second locking tooth 9 are slidably installed in the guiding groove 11.

[0043] In one embodiment: the connecting seat 1 includes a first clamping portion 12 and a second clamping portion 13 which are oppositely arranged. The first clamping portion 12 and the second clamping portion 13 respectively clamp the two sides of the front hinge seat 4 and the rear hinge seat 7 for fixation.

[0044] In one embodiment: a first hinge hole 121 is provided on the first clamping portion 12, a second hinge hole 42 is provided on the front hinge seat 4, a third hinge hole 131 is provided on the second clamping portion 13. The first hinge shaft 122 passes through the first hinge hole 121 and docks with the second hinge hole 42. The second hinge shaft 132 passes through the third hinge hole 131 and docks with the second hinge hole 42. The first locking bolt 123 passes through the first hinge shaft 122 and is connected to a first locking nut 133 provided in the second hinge shaft 132.

[0045] In one embodiment: a fourth hinge hole 124 is further provided on the first clamping portion 12, a fifth hinge hole 72 is provided on the rear hinge seat 7, a sixth hinge hole 134 is provided on the second clamping portion 13. The third hinge shaft 125 passes through the fourth hinge hole 124 and docks with the fifth hinge hole 72. The fourth hinge shaft 135 passes through the sixth hinge hole 134 and docks with the fifth hinge hole 72. The second locking bolt 126 passes through the third hinge shaft 125 and is connected to a second locking nut 136 provided in the fourth hinge shaft 135.

[0046] In one embodiment: a concave accommodating area 14 is provided on the second clamping portion 13, and the locking knob 10 is rotatably installed in the accommodating area 14.

[0047] Working principle: In this case, the front fork 3 of the tricycle is movably hinged to the front hinge ear 2 of the connecting seat 1 through the front hinge seat 4. In the use state, the front fork is in the unfolded position and the wheels can rotate normally. When folding is required, the user can unlock the locking device of the front hinge seat to make the front fork 3 swing around the hinge axis at the front hinge ear 2, thereby realizing the folding of the front fork. After folding, the front fork closely adheres to the connecting seat 1, greatly reducing the front space of the tricycle. This design enables the tricycle to be conveniently stored and avoids the problem that traditional tricycles cannot be folded.

[0048] Similarly, the frame 6 is movably hinged to the rear hinge ear 5 at the rear end of the connecting seat 1 through the rear hinge seat 7. In the normal use state, the frame 6 is in the unfolded position, and the seat and the rear wheel support structure are stable. When folding, the user can unlock the locking device of the rear hinge seat to make the frame 6 swing around the hinge axis at the rear hinge ear 5, realizing the folding of the frame. The folded frame is close to the connecting seat 1, reducing the overall volume. This design ensures the compactness of the tricycle during storage and makes it more convenient to carry.

[0049] Among them, in order to ensure the safety and stability of the tricycle in the folded and unfolded states, the present utility model designs a locking device. This device mainly realizes the locking by the engagement of a plurality of teeth 41, 71 provided on the outer edges of the front hinge seat 4 and the rear hinge seat 7 with the first lock tooth 8 and the second lock tooth 9 installed in the connecting seat 1.

[0050] Specifically, when the tricycle is in the unfolded use state, the locking knob 10 rotates to drive the eccentric block 101 to press into the driving groove, driving the first slider 81 and the second slider 91 to move, and the lock teeth are respectively engaged with the teeth. In this way, the front hinge seat 4 and the rear hinge seat 7 are locked to ensure the stable structure of the tricycle. When folding, rotate the locking knob 10 to disengage the eccentric block 101 from the driving groove, separate the lock teeth from the teeth, and the front fork and the frame can swing freely, thereby completing the folding operation.

[0051] Among them, in order to keep the lock teeth moving smoothly during the hinging process, the present utility model designs a guiding groove 11 in the connecting seat 1. The lock teeth are installed on the sliders and are slidably installed in the guiding groove. The guiding groove ensures that the lock teeth can slide smoothly in a straight line direction when locking and unlocking, avoiding locking failure or loosening caused by swinging or external forces. This structure not only improves the reliability of the locking system but also greatly enhances the simplicity and safety of the operation.

[0052] Furthermore: The present utility model also fixes the front hinge seat 4 and the rear hinge seat 7 on the connecting seat through the first clamping portion 12 and the second clamping portion 13 provided on the connecting seat 1 by means of the structure of a plurality of hinge holes and hinge shafts. The hinge shaft further ensures the tightness of the connection through a locking bolt and a locking nut, so that the front fork and the frame can maintain a stable structural state during use, avoiding affecting the use safety of the tricycle due to the looseness of the hinge components.

[0053] The present utility model can fold the tricycle into a portable form through a series of simple operations. In the folded state, the front fork and the frame are closely attached to the connecting seat 1, greatly reducing the occupied space of the tricycle, facilitating the user to put it into the trunk of a car or carry it to different places, and solving the problem of inconvenient carrying caused by the inability to fold in the prior art. In addition, the folding and unfolding operations of the utility model are simple and fast, enabling the user to complete them in a short time, improving the user experience of the product, and thus can be widely promoted and used.

[0054] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A children's tricycle with a folding and storage function, characterized in that: It includes a connecting seat (1). A front hinge ear (2) is provided at the front end of the connecting seat (1). A front hinge seat (4) provided at the tail of the front fork (3) is movably hinged and installed within the front hinge ear (2). The front fork (3) swings relative to the front hinge ear (2) through the front hinge seat (4), realizing the folding of the front fork (3). It further includes a rear hinge ear (5) provided at the rear end of the connecting seat (1). A rear hinge seat (7) provided at the front end of the frame (6) is movably hinged and installed within the rear hinge ear (5). The frame (6) swings relative to the rear hinge ear (5) through the rear hinge seat (7), realizing the folding of the frame (6). A locking device is further provided within the connecting seat (1). The locking device locks the relative positions between the front hinge seat (4) and the rear hinge seat (7) and the connecting seat (1).

2. The children's tricycle with a folding and storage function according to claim 1, wherein: The locking device includes a number of first teeth (41) provided on the outer edge of the front hinge seat (4), and a first locking tooth (8) installed within the connecting seat (1). The first locking tooth (8) meshes with or disengages from the first teeth (41) under the drive of a locking knob (10). The locking device further includes a number of second teeth (71) provided on the outer edge of the rear hinge seat (7), and a second locking tooth (9) installed within the connecting seat (1). The second locking tooth (9) meshes with or disengages from the second teeth (71) under the drive of the locking knob (10).

3. The children's tricycle with a folding and storage function according to claim 2, wherein: The first locking tooth (8) is provided at the front part of a first slider (81). A first driving groove (82) is provided on the first slider (81). An eccentric block (101) is provided on the locking knob (10). The eccentric block (101) and the first driving groove (82) squeeze each other to drive the first slider (81) to move.

4. The children's tricycle with a folding and storage function according to claim 2, characterized in that: The second locking tooth (9) is provided at the rear part of a second slider (91). A second driving groove (93) is provided on the second slider (91). An eccentric block (101) is provided on the locking knob (10). The eccentric block (101) and the second driving groove (93) squeeze each other to drive the second slider (91) to move.

5. A children's tricycle with a folding and storage function according to claim 2, characterized in that: A guiding groove (11) is provided within the connecting seat (1). The first locking tooth (8) and the second locking tooth (9) are slidably installed within the guiding groove (11).

6. A children's tricycle with a folding and storage function according to claim 2, characterized in that: The connecting seat (1) includes a first clamping part (12) and a second clamping part (13) which are oppositely arranged. The first clamping part (12) and the second clamping part (13) respectively clamp on both sides of the front hinge seat (4) and the rear hinge seat (7) for fixation.

7. A children's tricycle with a folding and storage function according to claim 6, characterized in that: A first hinge hole (121) is provided on the first clamping part (12). A second hinge hole (42) is provided on the front hinge seat (4). A third hinge hole (131) is provided on the second clamping part (13). A first hinge shaft (122) passes through the first hinge hole (121) and docks with the second hinge hole (42). A second hinge shaft (132) passes through the third hinge hole (131) and docks with the second hinge hole (42). A first locking bolt (123) passes through the first hinge shaft (122) and connects with a first locking nut (133) provided within the second hinge shaft (132).

8. A children's tricycle with a folding and storage function according to claim 6, characterized in that: A fourth hinge hole (124) is further provided on the first clamping portion (12). A fifth hinge hole (72) is provided on the rear hinge seat (7). A sixth hinge hole (134) is provided on the second clamping portion (13). A third hinge shaft (125) passes through the fourth hinge hole (124) and docks with the fifth hinge hole (72). A fourth hinge shaft (135) passes through the sixth hinge hole (134) and docks with the fifth hinge hole (72). A second locking bolt (126) passes through the third hinge shaft (125) and is connected to a second locking nut (136) provided inside the fourth hinge shaft (135).

9. The children's tricycle with a folding and storage function according to claim 8, characterized in that: A concave accommodating area (14) is provided on the second clamping portion (13). The locking knob (10) is rotatably installed in the accommodating area (14).

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