Multifunctional small-size portable folding bicycle with extensible storage plate

Abstract

The utility model discloses a multifunctional small-size portable folding bicycle with an extensible storage plate. The multifunctional small-size portable folding bicycle comprises a folding bicycle body, the storage plate and a pull rod. The storage plates are formed by connecting the telescopic sleeves, have the telescopic function and have the connecting and supporting functions at the same time, and the structure and the weight are effectively simplified. And four universal wheels and two directional walking wheels are arranged below the storage plate, so that the combination of flexible steering and stable driving is realized. A multi-position limiting clamping groove is formed in the connecting position of the pull rod and the storage plate, and multi-position locking is guaranteed. By means of the design, the problems that a storage plate of a traditional portable folding bicycle is fixed, the structure is complex, and running is unstable are solved, and convenient, flexible and stable use experience is provided. And through the innovative telescopic pulley and the telescopic mechanism, the adaptability and expansibility of the storage plate are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of portable folding transportation equipment, in particular to a small-volume portable folding vehicle with an extendable storage board and multiple functions. Background Art

[0002] Portable folding vehicles are increasingly widely used in modern society, mainly to meet the needs of people for carrying and transporting during short-distance trips. However, there are many problems in the actual use of common portable folding vehicles on the market at present, which are specifically manifested as follows:

[0003] 1. The design of the storage board is single: The storage board of traditional portable folding vehicles is usually a fixed design and cannot be adjusted and extended according to the size and shape of items. This makes it necessary for users to carry other tools additionally when carrying large or irregular items, resulting in a significant reduction in portability and flexibility. This design cannot meet the diverse usage needs and limits the application scenarios of the folding vehicle.

[0004] 2. The design of the wheels is unreasonable: Most existing portable folding vehicles adopt a unified wheel design, usually all universal wheels or all directional wheels. Although all universal wheels can provide good steering flexibility, in actual use, especially during the steering process, the vehicle body is prone to swing and shake, affecting the driving stability. On the contrary, all directional wheels can maintain the stability of straight-line driving, but in the case of frequent steering, the operation is inconvenient and the flexibility is insufficient.

[0005] 3. The limit function is insufficient: There is a lack of an effective limit function between the pull rod and the storage board of many portable folding vehicles, resulting in complex operation and poor stability during the folding and unfolding processes. This not only increases the operation difficulty for users but also affects the overall safety of the folding vehicle.

[0006] In order to improve the above problems, attempts have been made in the prior art to improve by adding expansion components to the storage board, improving the structural design of the wheels, and setting limit devices, etc. However, there are still some deficiencies in these improvement measures in actual applications. For example, the expansion components of the storage board increase the complexity and weight of the vehicle body, which is not conducive to portability; the complex operation steps of improving the wheel design make it inconvenient to use and the effect is not ideal; the setting of the limit device often increases the production cost and operation difficulty.

[0007] Therefore, how to provide a portable folding vehicle that can adjust the size of the storage board according to needs, simplify the overall structure, and ensure driving stability has become the technical problem to be solved by the present utility model. Summary of the Utility Model

[0008] The technical problem solved by the present utility model is to provide a small-volume portable folding vehicle with an extendable storage board and multiple functions to solve the problems of non-adjustable storage board, complex structure and unstable driving existing in the above-mentioned prior art.

[0009] To solve the above technical problems, the technical solutions adopted by the present utility model are as follows:

[0010] A small-volume portable folding vehicle with an extendable storage board and multiple functions, including a folding vehicle body, the folding vehicle body includes a storage board and a pull rod, the storage board includes a front side and a rear side, the pull rod is arranged on the front side of the storage board, and the small-volume portable folding vehicle with an extendable storage board and multiple functions also includes a telescopic pulley and at least two telescopic mechanisms; the telescopic pulley is located at the rear side of the storage board, and the telescopic pulley is telescopically and cooperatively connected with the storage board through the telescopic mechanism;

[0011] The telescopic mechanism includes a telescopic sleeve fixedly arranged on the storage board and a telescopic rod telescopically and cooperatively connected with the telescopic sleeve, a chute hole matched with the telescopic rod is arranged on the telescopic pulley, and the telescopic pulley is slidably and cooperatively connected with the telescopic rod through the chute hole; the storage board includes a first board body and a second board body, and the first board body and the second board body are fixedly connected through the telescopic sleeve;

[0012] Universal wheels are respectively arranged at the positions close to the four corners of the storage board below the storage board; directional walking wheels are respectively arranged at the positions close to the left side and the right side of the telescopic pulley below the telescopic pulley.

[0013] As a further scheme of the present utility model, a 135-degree limit card slot and a 90-degree limit card slot are arranged at the position on the storage board close to the connection between the pull rod and the storage board, a limit card block slidably arranged on the pull rod is respectively matched with the 135-degree limit card slot or the 90-degree limit card slot, the limit card block includes a first state of being clamped and connected with the 135-degree limit card slot, a second state of being clamped and connected with the 90-degree limit card slot, and an upward sliding and positioning state of not being clamped and connected with the 135-degree limit card slot or the 90-degree limit card slot.

[0014] As a further scheme of the present utility model, a storage groove is fixedly arranged at the position close to the front end on the lower surface of the storage board, the storage groove includes a groove opening, a door body for opening the groove opening of the storage groove is arranged at the groove opening of the storage groove, one side of the door body is hinged to the storage board, and the other side of the door body is clamped and connected to the storage board.

[0015] As a further scheme of the present utility model, the pull rod is pivotally connected with the folding vehicle body so that the pull rod includes a folded state and an opened state; when the pull rod is in the folded state, the pull rod is clamped and connected with the storage board; when the pull rod is in the opened state, the limit card block on the pull rod can slide to the position clamped and connected with the limit card slot.

[0016] As a further solution of the present utility model, the pull rod includes a first rod body and a second rod body, and the limit blocks are respectively slidably connected to the first rod body and the second rod body.

[0017] As a further solution of the present utility model, the number of telescopic mechanisms is 3.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. The whole storage board is formed by connecting telescopic sleeves. While the telescopic sleeves realize the extension function, they also play the roles of connection and storage support. For a small-sized portable folding vehicle, it is beneficial to simplify its structure and weight.

[0020] 2. Four universal wheels are adopted near the pull rod, and two directional walking wheels are adopted near the telescopic pulley. The particularity of this design lies in that when the pull rod is pulled, the four universal wheels can freely rotate according to the direction of the pull rod and bear force respectively, so as to realize flexible steering. When the user pulls the pull rod to change the direction, the four universal wheels automatically adjust their rotation angles, enabling the storage board to quickly respond to the direction change and providing stable support and flexible steering effect. At the same time, the two directional walking wheels located at the position far from the pull rod can only roll along a fixed direction. When the pull rod is pulled to change the direction, due to their non-free-rotation characteristic, the directional walking wheels follow the steering direction of the whole folding vehicle after being stressed and keep moving in a straight line. This design ensures that during the steering process, the rear part of the vehicle body will not swing or shake left and right, thus maintaining the stability and direction consistency during the driving process.

[0021] 3. A 135-degree limit slot and a 90-degree limit slot are provided at the position on the storage board close to the connection with the pull rod, achieving the use effect of multi-position locking and limiting.

[0022] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the pull rod of the present utility model at 90 degrees.

[0025] Figure 2 ForFigure 1 The upward view schematic diagram.

[0026] Figure 3 It is a schematic structural diagram when the drawbar is at 135 degrees and the telescopic pulley is in the pulled-out state.

[0027] Figure 4 It is a schematic structural diagram when the present utility model is in the folded state.

[0028] Figure 5 It is Figure 4 The upward view state schematic diagram.

[0029] Figure 6 It is Figure 1 The schematic structural diagram when the telescopic pulley of

[0030] The reference numerals and names in the figure are as follows:

[0031] Folding cart body 1, storage board 2, front side 3, rear side 4, drawbar 5, telescopic mechanism 6, telescopic sleeve 7, telescopic rod 8, telescopic pulley 9, first plate body 10, second plate body 11, universal wheel 12, directional walking wheel 13, 135-degree limit card slot 14, 90-degree limit card slot 15, limit card block 16, storage slot 17, slot opening 18, door body 19, first rod body 20, second rod body 21 and control switch 22. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Please refer to Figure 1 —6. In the embodiment of the present utility model, a small-volume portable folding cart with an extendable storage board and multiple functions includes a folding cart body 1. The folding cart body 1 includes a storage board 2 and a drawbar 5. The storage board 2 includes a front side 3 and a rear side 4. A drawbar 5 is arranged on the front side 3 of the storage board 2. The small-volume portable folding cart with an extendable storage board and multiple functions further includes a telescopic pulley 9 and at least two telescopic mechanisms 6; the telescopic pulley 9 is located at the rear side 4 of the storage board 2, and the telescopic pulley 9 is telescopically and cooperatively connected with the storage board 2 through the telescopic mechanism 6;

[0034] The telescopic mechanism 6 includes a telescopic sleeve 7 fixedly arranged on the storage board 2 and a telescopic rod 8 telescopically and cooperatively connected with the telescopic sleeve 7. A chute hole cooperating with the telescopic rod 8 is arranged on the telescopic pulley 9, and the telescopic pulley 9 is slidably and cooperatively connected with the telescopic rod 8 through the chute hole; the storage board 2 includes a first board body 10 and a second board body 11, and the first board body 10 and the second board body 11 are fixedly connected through the telescopic sleeve 7; when the folding bike body 1 is in the folded state, the pull rod 5 can be snap-connected with the telescopic pulley 9, so as to have a stable folded state after folding, and these all belong to the extended implementation manners known to those of ordinary skill in the art.

[0035] In addition, the small-volume portable folding bike with an extendable storage board and multiple functions further includes a control switch 22 arranged on the storage board 2. The telescopic mechanism 6 is controlled through the control switch 22. When the control switch 22 is pressed, the telescopic mechanism 6 is unlocked and the telescopic rod 8 is allowed to be pulled, so as to adjust the length of the storage board 2; when the control switch 22 is not pressed, the telescopic mechanism 6 is in the locked state and the telescopic rod 8 cannot move. The control switch 22 interacts with the buckle mechanism inside the telescopic sleeve 7, and the number of the control switches 22 is 2, so as to be unlocked when pressed simultaneously to prevent misoperation and realize the locking and unlocking of the telescopic rod 8, and these all belong to the extended implementation manners known to those of ordinary skill in the art.

[0036] Universal wheels 12 are respectively arranged at positions below the storage board 2 and close to the four corners of the storage board 2; directional walking wheels 13 are respectively arranged at positions below the telescopic pulley 9 and close to the left and right sides of the telescopic pulley 9.

[0037] A 135-degree limit card slot 14 and a 90-degree limit card slot 15 are arranged at a position on the storage board 2 close to the connection position of the pull rod 5 and the storage board 2. A limit card block 16 slidably arranged on the pull rod 5 is respectively matched with the 135-degree limit card slot 14 or the 90-degree limit card slot 15. The limit card block 16 includes a first state of being snap-connected with the 135-degree limit card slot 14, a second state of being snap-connected with the 90-degree limit card slot 15, and an upward sliding and positioning state of not being snap-connected with the 135-degree limit card slot 14 or the 90-degree limit card slot 15; at the same time, 90 degrees and 135 degrees refer to approximately this angle, but in specific implementation, a design deviation of about 10 degrees can also be implemented, and these all belong to the extended implementation manners known to those of ordinary skill in the art.

[0038] A storage groove 17 is fixedly arranged on the lower surface of the storage plate 2 and near the front end. The storage groove 17 includes a groove opening 18. A door body 19 for opening the groove opening 18 of the storage groove 17 is arranged at the groove opening 18 of the storage groove 17. One side of the door body 19 is hinged to the storage plate 2, and the other side of the door body 19 is snap-connected to the storage plate 2. The pull rod 5 is pivotally connected to the folding bike body 1 so that the pull rod 5 includes a folded state and an opened state; when the pull rod 5 is in the folded state, the pull rod 5 is snap-connected to the storage plate 2; when the pull rod 5 is in the opened state, the limit catch 16 on the pull rod 5 can slide to a position where it is snap-connected to the limit card slot. The pull rod 5 includes a first rod body 20 and a second rod body 21, and the limit catch 16 is slidably fitted and connected to the first rod body 20 and the second rod body 21 respectively. The number of the telescopic mechanisms 6 is 3.

[0039] Embodiment 1:

[0040] This embodiment introduces a specific implementation manner of a small-volume portable folding bike with an extendable storage plate and multiple functions. This folding bike is mainly used to solve problems such as non-adjustable storage plate 2, complex structure, and unstable driving in traditional portable folding bikes.

[0041] The folding bike body 1 includes a storage plate 2 and a pull rod 5. The storage plate 2 includes a front side 3 and a rear side 4, and the pull rod 5 is arranged on the front side 3. In order to achieve the adjustability of the storage plate 2, the storage plate 2 is composed of a first plate body 10 and a second plate body 11, and is fixedly connected by a telescopic sleeve 7. An expansion rod 8 is arranged in the telescopic sleeve 7. A telescopic pulley 9 is located at the rear side 4 of the storage plate 2. The telescopic pulley 9 is slidably fitted and connected to the expansion rod 8 through a chute hole to realize the telescopic function of the storage plate 2. This design allows users to adjust the size of the storage plate 2 according to the size and shape of the items carried, meeting different needs and avoiding the limitations of traditional fixed storage plates 2 when carrying large or irregular items.

[0042] Universal wheels 12 are respectively arranged at positions near the four corners below the storage plate 2, and directional walking wheels 13 are respectively arranged at positions near the left and right sides of the telescopic pulley 9. When the pull rod 5 is pulled, the four universal wheels 12 can freely rotate according to the direction of the pull rod 5 to achieve flexible steering and provide stable support. When the user pulls the pull rod 5 to change the direction, the universal wheels 12 automatically adjust the rotation angle and quickly respond to the direction change. The directional walking wheels 13 can only roll in a fixed direction. When the pull rod 5 is pulled to change the direction, the directional walking wheels 13 follow the steering direction of the vehicle body after being stressed and keep moving in a straight line. This wheel configuration design ensures that during the steering process, the rear part of the vehicle body will not swing or shake left and right, thus maintaining the driving stability and direction consistency.

[0043] In order to further improve the convenience and safety of use, a 135-degree limit card slot 14 and a 90-degree limit card slot 15 are provided at the position on the storage board 2 close to the connection between the pull rod 5 and the storage board 2. A limit block 16 that can slide on the pull rod 5 and is matched with the 135-degree limit card slot 14 or the 90-degree limit card slot 15 is provided. The limit block 16 includes a first state of being clamped and connected with the 135-degree limit card slot 14, a second state of being clamped and connected with the 90-degree limit card slot 15, and an upward sliding and positioning state of not being clamped and connected with any limit card slot. This multi-position locking and limiting design ensures that the pull rod 5 can be firmly positioned in both the folded and opened states, with simple operation, further enhancing the safety and reliability of the folding bike.

[0044] In addition, a storage groove 17 is fixedly provided at the position near the front end of the lower surface of the storage board 2. The storage groove 17 includes a groove opening 18, and a door body 19 is provided at the groove opening 18. One side of the door body 19 is hinged to the storage board 2, and the other side is clamped to the storage board 2. Users can conveniently open the storage groove 17 to store small items, increasing the diversity of the storage function.

[0045] Through the above structural design in this embodiment, many problems in the prior art are effectively solved. The adjustability of the storage board 2 enhances the application range of the folding bike; the special configuration of the wheels ensures flexibility and stability during driving; the multi-position limiting design improves safety during use. In summary, the present utility model provides a more convenient and practical small-volume portable folding bike with broad application prospects.

[0046] Embodiment 2:

[0047] This embodiment introduces a specific application method of a small-volume portable folding bike with an extendable storage board and multiple functions, aiming to show how to effectively solve the problems in the use of traditional portable folding bikes through the structural design of the present utility model and achieve a wider range of applications.

[0048] The folding bike body 1 includes a storage board 2, a pull rod 5, a telescopic pulley 9, and multiple telescopic mechanisms 6. The storage board 2 is composed of a first board body 10 and a second board body 11, and is connected by a telescopic sleeve 7 to form an integral structure. The telescopic sleeve 7 not only realizes the extension function of the storage board 2, but also plays a role in connection and support. This design greatly simplifies the structure and weight of the folding bike, facilitating users to carry and store.

[0049] In practical applications, users can adjust the length of the storage board 2 through the telescopic sleeve 7 according to the size and shape of the carried items. For example, when carrying larger items, users can extend the storage board 2 to its maximum length, and when not needed, it can be contracted to the minimum state to save space. The telescopic pulley 9 is slidably connected with the telescopic rod 8 through the chute holes provided at the rear side 4 of the storage board 2, realizing the smooth telescoping of the storage board 2.

[0050] To improve the driving stability and flexibility of the folding cart, the present utility model is provided with 4 universal wheels 12 near the position of the pull rod 5, and 2 directional walking wheels 13 near the position of the telescopic pulley 9. The four universal wheels 12 can rotate freely according to the direction of the pull rod 5 to achieve flexible steering. When the user pulls the pull rod 5 to change the direction, the universal wheels 12 automatically adjust their rotation angles, enabling the storage board 2 to quickly respond to the direction change, providing a smooth support and flexible steering effect. The directional walking wheels 13, due to their non-free-rotating characteristics, when the pull rod 5 is pulled to change the direction, follow the steering direction of the entire folding cart after being stressed, maintaining a straight-line following movement. This design ensures that during the steering process, the rear part of the vehicle body will not swing or shake left and right, thus maintaining the stability and direction consistency during driving.

[0051] At the position on the storage board 2 near the connection with the pull rod 5, a 135-degree limit card slot 14 and a 90-degree limit card slot 15 are provided, which cooperate with the limit card block 16 on the pull rod 5 to achieve the use effect of multi-position locking and limiting. For example, when the user pulls the pull rod 5 to a specific position, the limit card block 16 can slide to the position where it is snap-connected with the 135-degree limit card slot 14 to ensure the stability and safety of the pull rod 5 during use. Similarly, when the pull rod 5 needs to be retracted, the limit card block 16 can slide to the position where it is snap-connected with the 90-degree limit card slot 15 to achieve quick folding and unfolding.

[0052] In addition, a storage groove 17 is provided at the position near the front end on the lower surface of the storage board 2. The storage groove 17 includes a groove opening 18, and a door body 19 is provided at the groove opening 18. One side of the door body 19 is hinged to the storage board 2, and the other side is snap-connected to the storage board 2. Users can conveniently open the storage groove 17 to store small items such as tools and daily necessities, increasing the functionality of the folding cart.

[0053] In the present utility model, unless otherwise clearly specified or defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0054] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

Claims

1. A small-volume portable folding vehicle with an extendable storage board and multiple functions, comprising a folding vehicle body, the folding vehicle body comprising a storage board and a pull rod, the storage board comprising a front side and a rear side, the pull rod being arranged on the front side of the storage board, characterized in that: The multifunctional small-volume portable folding bicycle with an extendable storage board also includes a telescopic pulley and at least two telescopic mechanisms; the telescopic pulley is located at the rear side of the storage board, and the telescopic pulley is telescopically connected to the storage board through the telescopic mechanism; The telescopic mechanism comprises a telescopic sleeve fixedly arranged on the storage plate and a telescopic rod telescopically connected to the telescopic sleeve, a sliding slot hole matching the telescopic rod is arranged on the telescopic pulley, and the telescopic pulley is slidably connected to the telescopic rod through the sliding slot hole; the storage plate comprises a first plate body and a second plate body, and the first plate body and the second plate body are fixedly connected through the telescopic sleeve; Universal wheels are respectively arranged below the storage board and near the four corners of the storage board; and directional walking wheels are respectively arranged below the telescopic pulley and near the left and right sides of the telescopic pulley.

2. A small-volume portable folding vehicle with an extendable storage board and multiple functions according to claim 1, characterized in that: A 135-degree limit slot and a 90-degree limit slot are provided on the storage plate near the position where the pull rod connects the storage plate. A limit block that matches the 135-degree limit slot or the 90-degree limit slot respectively is slidably provided on the pull rod. The limit block includes a first state in which it is snap-connected to the 135-degree limit slot, a second state in which it is snap-connected to the 90-degree limit slot, and an upward sliding positioning state in which it is not snap-connected to the 135-degree limit slot or the 90-degree limit slot.

3. The small-volume portable folding vehicle with an extendable storage board and multiple functions according to claim 1, characterized in that: A storage slot is fixedly provided on the lower surface of the storage board and near the front end, the storage slot includes a slot opening, the slot opening of the storage slot is provided with a door body for opening the slot opening of the storage slot, one side of the door body is hingedly connected to the storage board, and the other side of the door body is clip-connected to the storage board.

4. The small-volume portable folding vehicle with an extendable storage board and multiple functions according to claim 1, characterized in that: The pull rod is pivotally connected to the folding bicycle body so that the pull rod includes a folding state and an opening state; when the pull rod is in the folding state, the pull rod is connected to the storage plate by clamping; when the pull rod is in the opening state, the limit block on the pull rod can slide to a position where it is connected to the limit slot by clamping.

5. The small-volume portable folding vehicle with an extendable storage board and multiple functions according to claim 1, characterized in that: The pull rod comprises a first rod body and a second rod body, and the limiting clamping block is respectively connected with the first rod body and the second rod body in a sliding manner.

6. The small-volume portable folding vehicle with an extendable storage board and multiple functions according to claim 1, characterized in that: The number of telescopic mechanisms is 3.

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