Folding bicycle with supporting structure

Abstract

The utility model discloses a folding bicycle with a supporting structure, which comprises a frame, a supporting structure and a supporting structure, the upper end of the frame is a handrail end, the lower end of the frame is a stress end, and the stress end is provided with a front side and a back side relative to an object needing to be borne; the shovel plate is arranged on the front side of the stress end; the at least two wheels are linearly arranged on the back side of the stress end, each wheel is rotationally arranged relative to the stress end, and each wheel rotates with the vertical direction of the stress end as the axis direction, so that the wheels have a folded state and an unfolded state; according to the utility model, independent stress of the wheels can be converted into common stress through matching of the supporting frame and the connecting supporting section, specifically, the two wheels are guided to be unfolded firstly, then the supporting frame is guided to be in a supporting state, and at the moment, the connecting supporting section is located between the two wheels and limits the two wheels; the two wheels bear force together, force bearing points are dispersed, the bearing performance is better, and safety and reliability are higher.

Description

Technical Field

[0001] The utility model relates to the field of carts, in particular to a folding cart with a supporting structure. Background Art

[0002] A folding trolley is a foldable trolley that can be used to reduce its size. To facilitate carrying and storage, lightweight trolleys for various purposes are generally designed in foldable versions. These folding trolleys can be used in various aspects, such as luggage, shopping items, etc.

[0003] Representatively, in the prior art, there is a Chinese patent document with application number 201020571006.1, which discloses a foldable luggage cart, which improves the connection structure of the wheels on the body, and can be folded or unfolded by simply flipping the bottom plate of the luggage cart, which greatly facilitates people's use. The structure is simple and the operation is very convenient. After folding, the volume is smaller and it is easy to carry and place.

[0004] The technical solution disclosed in the above patent document is a folding cart, which is used to transport luggage. However, in actual use, it still has certain limitations because:

[0005] The folding cart disclosed in the above patent document moves by means of multiple independent wheels. Once the load-bearing level requirement is high, if the cart encounters uneven ground during movement, the cart is likely to tilt. The tilting of the cart means that one or several wheels are under concentrated force. Once this happens, one or several wheels under force are likely to deform, thereby increasing the probability of damage to the cart.

[0006] Therefore, how to solve the above-mentioned deficiencies in the prior art has become a topic to be studied and solved in the present invention. Summary of the invention

[0007] The utility model aims to provide a folding bicycle with a supporting structure, aiming to solve the technical problem in the above background technology that if independent wheels are subjected to concentrated forces, they are prone to deformation, thereby increasing the probability of damage to the bicycle.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a folding bicycle with a supporting structure, comprising:

[0009] A frame, the upper end of which is a handrail end for easy gripping, and the lower end is a force-bearing end for bearing the weight of an object, and the force-bearing end has a front side and a back side relative to the object to be carried;

[0010] A shovel plate, which is arranged on the front side of the force-bearing end;

[0011] At least two wheels are arranged in a straight line on the back side of the force-bearing end, each wheel is rotatably arranged relative to the force-bearing end, and each wheel rotates with the up-and-down direction of the force-bearing end as the axis direction, so that the wheel has a stowed state and an unfolded state;

[0012] A support frame is rotatably connected to the frame and is arranged on the same side as the wheel, the support frame includes a connecting support section, the connecting support section is arranged corresponding to the spacing between the two wheels, and the support frame has a supporting state and a storage state; when the support frame is in the supporting state, the connecting support section is located between the two wheels, one end of the connecting support section conflicts with the axle of one wheel, and the other end of the connecting support section conflicts with the axle of the other wheel, limiting the two wheels in the expanded state; and when the support frame is in the storage state, the connecting support section is separated from between the two wheels, so that the two wheels can be converted to the storage state.

[0013] According to a further technical solution, a fixing block is provided on the surface of the wheel, and a positioning slot is provided in the fixing block;

[0014] The connecting support section includes a wheel support rod fixedly connected to the support frame, and both ends of the wheel support rod are provided with end covers matching the locking slots. The end covers can be connected to the fixed blocks by locking into the locking slots to interfere with the wheel axle of the wheel. When the support frame is in a supporting state, the wheel support rod and the axis of the wheel body are in the same straight line.

[0015] According to a further technical solution, a hook is provided on the side wall of the frame, and the hook is on the same side as the support frame. When the support frame is in a stored state, the connecting support section is engaged with the hook.

[0016] According to a further technical solution, a pedal is installed on the side wall of the wheel support rod to assist the frame in rotating with the wheel as the rotation center.

[0017] A further technical solution is that the wheel includes a wheel body and a wheel frame rotatably connected to the force-bearing end of the frame through a rotating member, a fixing groove is provided in the wheel frame, the wheel body is located in the fixing groove and is rotatably arranged relative to the wheel frame, and the fixing block is arranged on the surface of the wheel frame and corresponds to the rotational connection point of the wheel body on the wheel frame.

[0018] According to a further technical solution, the support frame includes a swivel connecting rod fixedly mounted on the frame, and a plurality of connecting parts are sleeved on the side walls of the swivel connecting rod, each connecting support section is connected to at least one connecting part, and one or more of the connecting parts are driven to rotate with the swivel connecting rod as the rotation center to drive the connecting support section to be located between or out of the two wheels.

[0019] According to a further technical solution, the vehicle frame comprises a cross bar segment and a plurality of vertical bar segments fixedly connected to the cross bar segment, wherein the cross bar segment is a handrail end, all the vertical bar segments are combined to form a force-bearing end, and the shovel plate is rotatably arranged relative to the force-bearing end.

[0020] A further technical solution is that the rotating part includes a bracket sleeve 1 which is sleeved on the side wall of the vertical rod section and fixed to the wheel frame, and the bracket sleeve 1 can only rotate around the sleeved vertical rod section. The end of the bracket sleeve 1 away from the ground is provided with a bracket sleeve 2 which is sleeved on the side wall of the vertical rod section, and the side wall of the vertical rod section is also sleeved with an elastic part for adjusting the abutment force between the bracket sleeve 1 and the bracket sleeve 2.

[0021] According to a further technical solution, the end surface of the bracket sleeve 1 opposite to the bracket sleeve 2 is provided with ratchet teeth that mesh with each other, and the two ratchet teeth that mesh with each other can limit the rotation of the bracket sleeve 1 within a set angle.

[0022] The terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit the present case. They are only used to distinguish components or operations described with the same technical terms.

[0023] As used herein, “connected” or “positioned” may refer to two or more components or devices being in direct physical contact with each other, or being in indirect physical contact with each other, or may refer to two or more components or devices operating or moving with each other.

[0024] The words “include,” “including,” and “have” used in this document are open-ended terms, meaning including but not limited to.

[0025] The terms used in this document generally have the ordinary meaning of each term used in this field, in the context of the case and in the specific context, unless otherwise noted. Certain terms used to describe the present invention will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the present invention.

[0026] The terms "front", "back", "up", "down", "left", "right", etc. used in this article are all directional terms. In this case, they are only used to illustrate the positional relationship between the various structures, and are not used to limit the protection plan of this case and the specific direction during actual implementation.

[0027] The advantages of the utility model are as follows:

[0028] The utility model can transform the wheels from being subjected to individual force to being subjected to common force through the cooperation between the support frame and the connecting support section, thereby reducing the concentrated force on the wheels and the deformation, thereby reducing the probability of damage to the vehicle. Specifically, the two wheels are first guided to unfold, and then the support frame is guided to be in a supporting state. At this time, the connecting support section is located between the two wheels, one end of the connecting support section conflicts with the axle of one wheel, and the other end thereof conflicts with the axle of the other wheel, thereby restricting the two wheels. When a heavy object is pressed on the frame, the force is borne together by the two wheels, the force points are dispersed, the load-bearing performance is better, and it is safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Attached Figure 1 It is a schematic diagram of the main structure of the frame of the utility model when it is in an unfolded state;

[0030] Attached Figure 2 It is a left-side structural schematic diagram of the frame of the utility model when it is in an unfolded state;

[0031] Attached Figure 3 It is a rear view structural schematic diagram of the utility model when the frame is in an unfolded state;

[0032] Attached Figure 4 It is a three-dimensional diagram of the frame of the utility model when it is in an unfolded state;

[0033] Attached Figure 5 It is a schematic diagram of the main structure of the frame of the utility model when it is in the storage state;

[0034] Attached Figure 6 It is a left-side structural schematic diagram of the frame of the utility model when it is in the storage state;

[0035] Attached Figure 7 It is a rear view structural schematic diagram of the utility model when the frame is in the storage state;

[0036] Attached Figure 8 It is a three-dimensional diagram of the utility model when the middle wheel body is in the storage state;

[0037] Attached Fig. 9 This is a schematic diagram of the hook structure in the utility model;

[0038] Attached Fig.10 A three-dimensional diagram of the utility model when the shovel plate is in the storage state

[0039] Attached Fig.11 It is a schematic diagram of the structure of the connecting piece in the utility model;

[0040] Attached Fig.12 It is a structural schematic diagram of the bracket sleeve 1 and the bracket sleeve 2 in the utility model when they are engaged;

[0041] Attached Fig.13This is a schematic diagram of the wheel support rod structure in the utility model;

[0042] Attached Fig.14 It is a schematic diagram of the fixed block structure in the utility model.

[0043] In the above figures: 1. frame; 2. wheel; 3. support frame; 4. connecting support section; 5. slewing connecting rod; 6. connecting piece; 7. wheel body; 8. wheel frame; 9. fixing groove; 10. positioning slide groove; 11. wheel support rod; 12. end cover; 13. hook; 14. pedal; 15. cross bar section; 16. shovel plate; 17. vertical bar section; 18. bracket sleeve one; 19. bracket sleeve two; 20. elastic member; 21. ratchet; 22. fixing block. DETAILED DESCRIPTION

[0044] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0045] Embodiment: The present invention will be clearly described below with diagrams and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.

[0046] The terms used herein are only for describing specific embodiments and are not intended to be limiting of the present invention. Singular forms such as "a", "this", "here", "this" and "the" as used herein also include plural forms.

[0047] Example 1: See Figure 1-Figure 14 , a folding bicycle with a supporting structure, comprising:

[0048] A frame 1, the upper end of which is a handrail end for easy gripping, and the lower end is a force-bearing end that bears the weight of an object, and the force-bearing end has a front side and a back side relative to the object to be carried; (the front side is the side facing the object, and the back side is the side facing away from the object).

[0049] A shovel plate 16 is provided on the front side of the force-bearing end.

[0050] At least two wheels 2 are arranged in a straight line on the back side of the force-bearing end, each wheel 2 is rotatably set relative to the force-bearing end, and each wheel 2 rotates with the up and down direction of the force-bearing end as the axial direction, so that the wheel 2 has a stowed state and an unfolded state; (Generally, the number of wheels 2 is selected to be two or more. If two are selected, the interval between the two wheels 2 is only one, three is two, and four is three. The subsequent arrangement is based on this rule. The function of this interval is to allow the wheels 2 to be fully stored in the stowed state. In the present application, two are preferred. Compared with three or other numbers of wheels 2, two are more convenient to install, and the axis lines of the two are easier to align when arranged).

[0051] A support frame 3 is rotatably connected to the frame 1 and is arranged on the same side as the wheel 2. The support frame 3 includes connecting support sections 4 (generally, the number of connecting support sections 4 is selected to be equal to the number of intervals, and the length of the connecting support sections 4 is just equal to the length of the interval). The connecting support sections 4 are arranged corresponding to the spacing between the two wheels 2. The support frame 3 has a supporting state and a storage state; when the support frame 3 is in the supporting state, the connecting support section 4 is located between the two wheels 2, one end of the connecting support section 4 conflicts with the axle of one wheel 2, and the other end thereof conflicts with the axle of the other wheel 2, limiting the two wheels 2 to the expanded state; and when the support frame 3 is in the storage state, the connecting support section 4 is separated from between the two wheels 2, so that the two wheels 2 can be converted to the storage state.

[0052] The number of the wheels 2 is at least two, so two wheels 2 are used as an example in the following description.

[0053] The utility model can transform the wheels 2 from being subjected to a single force to being subjected to a common force through the cooperation between the support frame 3 and the connecting support section 4, thereby reducing the concentrated force on the wheels and the deformation, thereby reducing the probability of damage to the vehicle. Specifically, the two wheels 2 are first guided to unfold, and then the support frame 3 is guided to be in a supporting state. At this time, the connecting support section 4 is located between the two wheels 2, one end of the connecting support section 4 conflicts with the axle of one wheel 2, and the other end thereof conflicts with the axle of the other wheel 2, thereby restricting the two wheels 2. When a heavy object is pressed on the frame 1, the force is borne together by the two wheels 2, and the force points are dispersed, the load-bearing performance is better, and it is safer and more reliable.

[0054] At the same time, the support frame 3 and the wheel 2 in the utility model both have a storage state. When the support frame 3 is stored, the connecting support section 4 can be guided to be separated from between the two wheels 2, so that the two wheels 2 can be converted to the storage state, and the whole operation is quick and convenient.

[0055] In some specific embodiments, the support frame 3 includes a swivel connecting rod 5 fixedly mounted on the frame 1, and the side wall of the swivel connecting rod 5 is sleeved with multiple connecting parts 6, each connecting support section 4 is connected to at least one connecting part 6, and one or more connecting parts 6 are driven to rotate with the swivel connecting rod 5 as the rotation center to drive the connecting support section 4 to be located between or out of the two wheels 2 (generally, the connecting part 6 and the swivel connecting rod 5 can be sleeved, that is, the side wall of the swivel connecting rod 5 is sleeved with a rotating sleeve fixedly connected to the end of the connecting part 6, or can be connected through a rotating shaft sleeve, that is, the side wall of the swivel connecting rod 5 is sleeved with a sliding sleeve, and the end of the connecting part 6 is fixedly connected to a sliding sleeve that cooperates with the sliding sleeve).

[0056] In order to enable all wheels 2 to bear pressure together at the same time, it is necessary to control all connecting support sections 4 to move together. Specifically:

[0057] When two connecting support sections 4 are provided, at least one connecting member 6 is provided on each connecting support section 4, for example, four connecting members 6 may be provided, and two connecting members are provided on each connecting support section 4. In this case, the four connecting members 6 may be connected by an auxiliary connecting rod; when there are two connecting members 6, that is, the connecting member 6 provided in the present application Figures 1 to 12 In the state shown in FIG. 1 , one connecting support segment 4 is provided. At this time, the connecting support segment 4 plays the role of connecting all the connecting members 6 .

[0058] At this time, one or two connecting parts 6 are driven to rotate with the rotary connecting rod 5 as the rotation center, thereby driving all the connecting support sections 4 to move together, so that all the wheels 2 are fixed at the same time. Once one wheel 2 is subjected to force, the other wheels 2 can also share the pressure under the action of the connecting support section 4.

[0059] In some specific embodiments, a fixing block 22 is provided on the surface of the wheel 2, and a positioning slot 10 is provided in the fixing block 22;

[0060] The connecting support section 4 includes a wheel support rod 11 fixedly connected to the support frame 3. Both ends of the wheel support rod 11 are provided with end covers 12 matching the locking groove 10. The end cover 12 can be connected to the fixed block 22 by locking into the locking groove 10 to interfere with the wheel axle of the wheel 2. When the support frame 3 is in a supporting state, the wheel support rod 11 and the axis of the wheel body 7 are in the same straight line.

[0061] Specifically, in order to fix all the wheels 2 at the same time, the wheels 2 are first guided to be in the expanded state, and then the support frame 3 is guided to rotate toward the force-bearing end. At this time, the wheel support rod 11 will be brought gradually closer to the fixing block 22. After rotating to a set angle (the specific angle is set according to needs), the end cover 12 just slides into the positioning slot 10 and is connected to the fixing block 22. That is to say, the wheel support rod 11 is fixed to the wheel frame 8 through the cooperation of the end cover 12 and the fixing block 22. In simple terms, the two ends of the wheel support rod 11 are respectively against the fixing blocks 22 on the wheel frames 8 on both sides, and the positioning slots 10 in the fixing blocks 22 cooperate with the end covers 12. The fixing blocks 22 and the end covers 12 are against each other to ensure that the wheel support rod 11 does not fall out. Under the action of the wheel support rod 11, the force points of the wheels 2 are dispersed, the load-bearing performance is better, and it is safer and more reliable.

[0062] It should be noted that: as mentioned above, the end of the connecting support section 4 conflicts with the axle of the wheel 2, which means that the connecting support section 4 and the wheel 2 are separable. Therefore, when connecting, the fixed connection method can be a clearance fit (that is, the friction between the positioning groove 10 and the end cover 12 is large) or a detachable fixed connection method such as a pin connection or a screw connection. The latter two fixing methods have no specific requirements on the expansion angle of the wheel 2, but the first method needs to control the expansion angle of the wheel 2 to a set angle, which is specifically preferably 90 degrees in the present application. After the wheel 2 is expanded to 90 degrees, it can no longer move. At this time, it can be fixed by a clearance fit.

[0063] In some specific embodiments, a hook 13 is provided on the side wall of the frame 1 , and the hook 13 and the support frame 3 are on the same side. When the support frame 3 is in the storage state, the connecting support section 4 is engaged with the hook 13 .

[0064] In order to facilitate the storage of the connecting support section 4, the connecting member 6 is directly guided to rotate toward the handrail end at a set angle with the rotary connecting rod 5 as the rotation center. At this time, the wheel support rod 11 is just engaged with the hook 13, and the storage of the connecting support section 4 is completed. In this state, the wheel 2 can be independently stressed.

[0065] In some specific embodiments, a pedal 14 is installed on the side wall of the wheel support rod 11 to assist the frame 1 to rotate around the wheel 2 as the rotation center. When the frame 1 and the shovel board 16 are in a position to load objects, the pedal 14 can be used as a pedal fulcrum of the lever to assist the frame 1 to rotate around the wheel 2 as the rotation center, making it easier to shovel heavy objects.

[0066] In some specific embodiments, the wheel 2 includes a wheel body 7 and a wheel frame 8 rotatably connected to the force-bearing end of the frame 1 through a rotating member, a fixing groove 9 is provided in the wheel frame 8, the wheel body 7 is located in the fixing groove 9 and is rotatably arranged relative to the wheel frame 8, and a fixing block 22 is arranged on the surface of the wheel frame 8 and corresponds to the rotation connection point of the wheel body 7 on the wheel frame 8.

[0067] The wheel 2 is arranged in this way so that the axle center of the wheel body 7 corresponds to the fixed block 22 arranged on the surface of the wheel frame 8. When the end cover 12 on the wheel support rod 11 and the locking groove 10 in the fixed block 22 complete the plug-in connection, the axis line of the wheel support rod 11 and the axle center of the wheel body 7 are on the same straight line, and the wheel 2 can fully share the pressure through the wheel support rod 11.

[0068] In some specific embodiments, the frame 1 includes a crossbar segment 15 and a plurality of vertical bar segments 17 fixedly connected to the crossbar segment 15, wherein the crossbar segment 15 is a handrail end, all the vertical bar segments 17 are combined to form a force-bearing end, and the shovel plate 16 is rotatably arranged relative to the force-bearing end.

[0069] The frame 1 needs to be used in conjunction with the shovel board 16, and its use state includes two states, namely, storage and unfolding:

[0070] When unfolded (i.e. in the state of being able to load objects), refer to Figure 1-Figure 4 At this time, there is a set angle between the surface of the shovel plate 16 and the force-bearing end. The figure shows a more preferred situation, that is, 90 degrees. In this case, it is more labor-saving to shovel heavy objects, and the surface of the shovel plate 16 is parallel to the ground.

[0071] When storing, Figure 5 and Figure 6 The shovel plate 16 rotates toward the handrail end with the rotation connection point with the column as the center until the surface of the shovel plate 16 is in contact with the side wall of the vertical rod section 17. At this time, the volume of the entire frame 1 is small and it is convenient to store.

[0072] In some specific embodiments, the rotating member includes a bracket sleeve 18 which is sleeved on the side wall of the vertical rod segment 17 and fixed to the wheel frame 8. The bracket sleeve 18 can only rotate around the sleeved vertical rod segment 17. The end of the bracket sleeve 18 away from the ground is provided with a bracket sleeve 2 19 which is sleeved on the side wall of the vertical rod segment 17, and the side wall of the vertical rod segment 17 is also sleeved with an elastic member 20 (a tension spring or a spring or an elastic rope or other structure that can apply force to the bracket sleeve 2 19 so that it is always in contact with the bracket sleeve 18) for adjusting the contact force between the bracket sleeve 18 and the bracket sleeve 2 19.

[0073] In some specific embodiments, the end surfaces of the bracket sleeve 1 18 and the bracket sleeve 2 19 opposite to each other are provided with ratchet teeth 21 that mesh with each other. The two ratchet teeth 21 that mesh with each other can limit the rotation of the bracket sleeve 1 18 within a set angle.

[0074] The unfolding and stowing states of the wheels 2 are performed together with the unfolding and stowing states of the frame 1 , that is, when the frame 1 is unfolded, the wheels 2 are unfolded.

[0075] In order to make the wheel 2 rotate at a set angle, the transition between the unfolded state and the stowed state can be achieved:

[0076] When the frame 1 is unfolded (i.e. the wheels 2 are in the stowed state):

[0077] The wheel frame 8 can be moved to rotate the bracket sleeve 18 on it around the side wall of the vertical rod section 17. Since the surface of the wheel frame 8 in the storage state is opposite to the surface of the shovel plate 16 in the storage state and can be in a parallel state (the parallel state here is a more preferred mode provided in this application), the rotation direction is gradually away from the surface of the shovel plate 16 in the storage state. Fig.10During this process, the spacing between the engaged ratchet teeth 21 will gradually decrease, and the elastic member 20 will stretch and pull the bracket sleeve 2 19 to always abut against the bracket sleeve 1 18 until the spacing between the engaged ratchet teeth 21 can no longer be reduced. At this time, the wheel frame 8 is perpendicular to the surface of the shovel plate 16 in the stored state.

[0078] When the frame 1 is stowed (i.e. the wheels 2 need to be stowed from the unfolded state):

[0079] At this time, the wheel frame 8 can be rotated so that the bracket sleeve 18 on it rotates around the side wall of the vertical rod section 17, and the rotation direction is gradually approaching the surface of the shovel plate 16 in the storage state. Fig.10 During this process, the spacing between the engaged ratchet teeth 21 will gradually increase, that is, the bracket sleeve 2 19 gradually moves away from the bracket sleeve 1 18 and stretches the elastic member 20 until the wheel frame 8 is parallel to the surface of the shovel plate 16 in the storage state.

[0080] Working principle: The whole operation is divided into storage state and unfolding state:

[0081] When entering storage mode:

[0082] First, rotate the shovel plate 16 toward the handrail end until the surface of the shovel plate 16 is in contact with the side wall of the vertical rod section 17, and then guide the connecting member 6 to rotate toward the handrail end at a set angle with the rotary connecting rod 5 as the rotation center until the wheel support rod 11 is engaged with the hook 13, thereby completing the storage of the connecting support section 4.

[0083] Then, the wheel frame 8 is rotated so that the bracket sleeve 18 on it rotates around the side wall of the vertical rod section 17, and the rotation direction is gradually approaching the surface of the shovel plate 16 in the storage state. Fig.10 During this process, the spacing between the engaged ratchet teeth 21 will gradually increase, that is, the bracket sleeve 2 19 gradually moves away from the bracket sleeve 1 18 and stretches the elastic member 20 until the wheel frame 8 is parallel to the surface of the shovel plate 16 in the storage state. The final storage state can be referred to Figure 6 .

[0084] When entering the expanded state from the stowed state:

[0085] First, the wheel frame 8 is moved to rotate the bracket sleeve 18 on it around the side wall of the vertical rod section 17. Since the surface of the wheel frame 8 in the storage state is opposite to the surface of the shovel plate 16 in the storage state and can be in a parallel state (the parallel state here is a more preferred mode provided in this application), the rotation direction is gradually away from the surface of the shovel plate 16 in the storage state. Fig.10During this process, the spacing between the engaged ratchet teeth 21 will gradually decrease, and the elastic member 20 will pull the bracket sleeve 2 19 to always be in contact with the bracket sleeve 1 18 until the spacing between the engaged ratchet teeth 21 can no longer be reduced. At this time, the wheel frame 8 is perpendicular to the surface of the shovel plate 16 in the stored state.

[0086] Then, the shovel plate 16 is turned over so that the surface thereof and the force-bearing end are at 90 degrees.

[0087] Afterwards, one or more connecting parts 6 are driven to rotate with the rotary connecting rod 5 as the rotation center to drive all the connecting support sections 4 to move together. That is, at this time, the wheel support rod 11 will be brought gradually closer to the fixed block 22. After rotating to a set angle (the specific angle is set according to needs), the end cover 12 just slides into the positioning slot 10 and is connected to the fixed block 22. In other words, the wheel support rod 11 and the wheel frame 8 are fixed by the cooperation of the end cover 12 and the fixed block 22. That is, all the wheels 2 are in a fixed state at this time. Once a wheel 2 is subjected to force, because multiple connecting parts 6 are integrated, under the action of the connecting support section 4, other wheels 2 can also share the pressure.

[0088] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A folding bicycle with a supporting structure, characterized in that: include: A frame (1), the upper end of which is a handrail end for easy gripping, and the lower end of which is a force-bearing end for bearing the weight of an object, wherein the force-bearing end has a front side and a back side relative to the object to be carried; A shovel plate (16) arranged on the front side of the force-bearing end; At least two wheels (2) are arranged in a straight line on the back side of the force-bearing end, each wheel (2) is rotatably arranged relative to the force-bearing end, and each wheel (2) rotates with the up-and-down direction of the force-bearing end as the axis direction, so that the wheel (2) has a stowed state and an unfolded state; A support frame (3) is rotatably connected to a vehicle frame (1) and is arranged on the same side as the wheel (2), the support frame (3) comprising a connecting support section (4), the connecting support section (4) being arranged corresponding to the spacing between the two wheels (2), and the support frame (3) having a supporting state and a stowed state; when the support frame (3) is in the supporting state, the connecting support section (4) is located between the two wheels (2), one end of the connecting support section (4) abuts against the axle of one wheel (2), and the other end of the connecting support section (4) abuts against the axle of the other wheel (2), thereby limiting the two wheels (2) to the extended state; and when the support frame (3) is in the stowed state, the connecting support section (4) is separated from between the two wheels (2), so that the two wheels (2) can be switched to the stowed state.

2. The folding bicycle with a support structure according to claim 1, characterized in that: A fixing block (22) is provided on the surface of the wheel (2), and a locking groove (10) is provided in the fixing block (22); The connecting support section (4) comprises a wheel support rod (11) fixedly connected to the support frame (3), and both ends of the wheel support rod (11) are provided with end covers (12) matching the locking slot (10), and the end covers (12) can be connected to the fixing block (22) by locking into the locking slot (10) to contact the wheel axle of the wheel (2), and when the support frame (3) is in a supporting state, the axis of the wheel support rod (11) and the wheel body (7) are in the same straight line.

3. The folding bicycle with a support structure according to claim 2, characterized in that: The side wall of the frame (1) is provided with a hook (13), the hook (13) and the support frame (3) are located on the same side, and when the support frame (3) is in a stored state, the connecting support section (4) is engaged with the hook (13).

4. The folding bicycle with a support structure according to claim 2, characterized in that: A pedal (14) is installed on the side wall of the wheel support rod (11) to assist the frame (1) in rotating around the wheel (2) as the rotation center.

5. The folding bicycle with a supporting structure according to claim 2, characterized in that: The wheel (2) comprises a wheel body (7) and a wheel frame (8) rotatably connected to a force-bearing end of a frame (1) via a rotating member, a fixing groove (9) being provided in the wheel frame (8), the wheel body (7) being located in the fixing groove (9) and rotatably arranged relative to the wheel frame (8), and the fixing block (22) being arranged on the surface of the wheel frame (8) and corresponding to a rotational connection point of the wheel body (7) on the wheel frame (8).

6. The folding bicycle with a supporting structure according to claim 1, characterized in that: The support frame (3) comprises a swivel link (5) fixedly mounted on the vehicle frame (1); a plurality of connecting members (6) are sleeved on the side wall of the swivel link (5); each connecting support section (4) is connected to at least one connecting member (6); one or more of the connecting members (6) are driven to rotate with the swivel link (5) as the rotation center so as to drive the connecting support section (4) to be located between or separated from the two wheels (2).

7. The folding bicycle with a supporting structure according to claim 5, characterized in that: The vehicle frame (1) comprises a crossbar segment (15) and a plurality of vertical bar segments (17) fixedly connected to the crossbar segment (15), wherein the crossbar segment (15) is a handrail end, all the vertical bar segments (17) are combined to form a force-bearing end, and the shovel plate (16) is rotatably arranged relative to the force-bearing end.

8. The folding bicycle with a supporting structure according to claim 7, characterized in that: The rotating member comprises a bracket sleeve (18) sleeved on the side wall of the vertical rod section (17) and fixedly connected to the wheel frame (8); the bracket sleeve (18) can only rotate around the sleeved vertical rod section (17); an end of the bracket sleeve (18) away from the ground is provided with a bracket sleeve (19) sleeved on the side wall of the vertical rod section (17); and an elastic member (20) is also sleeved on the side wall of the vertical rod section (17) for adjusting the abutment force between the bracket sleeve (18) and the bracket sleeve (19).

9. The folding bicycle with a supporting structure according to claim 8, characterized in that: The end surfaces of the bracket sleeve 1 (18) and the bracket sleeve 2 (19) opposite to each other are provided with ratchet teeth (21) that mesh with each other. The two ratchet teeth (21) that mesh with each other can limit the rotation of the bracket sleeve 1 (18) within a set angle.

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