A folding bicycle with expandable space

Abstract

A folding bicycle with expandable space includes a frame and a storage bag. The frame includes two independent support vertical frames arranged at the rear end. The two support vertical frames form an unobstructed opening at the rear end of the storage bag. The frame is hinged with a push rod that can be flipped up and down on one side of the rear end of the storage bag. The push rod includes a push handle position and a storage position that can lie flat. The frame is correspondingly provided with an upper connecting piece and a lower abutting piece. When the push rod is in the push handle position, the push rod flips upward and engages with the upper connecting piece. When the push rod switches from the push handle position to the storage position, the push rod flips downward and abuts against the lower abutting piece. The rear end of the storage bag can be connected to the push rod after lying flat through the opening to form an extended storage space. The utility model provides a folding bicycle with expandable space, which realizes that the push rod can switch between the push handle position and the storage position. The storage platform formed by the push rod is connected to the storage without obstruction through the opening, thereby expanding the loading space of the folding bicycle and meeting the push rod requirements at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of folding bicycle accessories, in particular to a folding bicycle with expandable space. Background Art

[0002] Folding bikes are widely used for carrying goods, taking children out, garden equipment and other situations. Usually, a folding bike has a body, a handle and four wheels. A folding bike is a multifunctional pedestrian transport vehicle and is also a short-distance transport vehicle, which sometimes needs to be put into a car. Now the folding bike technology is becoming more and more mature.

[0003] Chinese utility model patent CN202121938856.5 discloses an outdoor folding camper, including a pull rod device, a frame and universal wheels. The frame includes a supporting vertical rod, left and right folding side rails, front and rear folding side rails, a bottom I-shaped component, a first upper connecting member, a second upper connecting member and a third upper connecting member. The pull rod device is connected to the supporting vertical rod, and the universal wheel is arranged at the bottom end of the supporting vertical rod. The first upper connecting member, the second upper connecting member and the third upper connecting member are sequentially sleeved on the upper, middle and lower parts of the supporting vertical rod. The upper and lower ends of the left and right folding side rails and the front and rear folding side rails are hinged on the first upper connecting member and the second upper connecting member, and the end of the bottom I-shaped component is hinged on the third upper connecting member. The utility model has a simple structure, is easy to assemble and disassemble, has a simple frame shape, and is light in overall weight. The sliding action of the second upper connecting piece on the vertical tube drives the vehicle body to gather or spread out, which is convenient for storage and transportation, and can ensure that the vehicle body has good stability in any state. However, the problem is that when the user has a higher load demand, the existing folding vehicle space must not be expanded. At the same time, when the folding vehicle carries more heavy objects, it is easy for the pull rod to not be able to pull the folding vehicle, and it is difficult for the user to apply force by pushing the folding vehicle through the rest of the vehicle body.

[0004] The Chinese utility model patent application number 202330663924.X previously filed by the applicant discloses a folding bicycle with a flip push rod, comprising a main body, the main body comprising a front vertical frame, a supporting vertical frame, and a folding frame arranged between the front vertical frame and the supporting vertical frame, a fixing part is fixedly installed on the folding frame, a push rod is hingedly installed on the side of the main body close to the fixing part, a limiting seat is provided on the supporting vertical frame, a first limiting groove is provided on the fixing part, and a second limiting groove is provided on the limiting seat, the push rod comprises a push handle position and a placement position, and the push rod can switch between the push handle position and the placement position, when the push rod is in the push handle position, the push rod rotates upward and is buckled in the first limiting groove, when the push rod rotates downward to the placement position, the push rod forms a placement platform, and the push rod is abutted against the second limiting groove. But the problem is that the storage space when the folding frame is in the storage position and the storage space inside the folding cart are two independent storage spaces. When the user places items that are too long, the folding cart cannot accommodate them, and the two independent storage spaces cannot be connected, so that larger items cannot be placed. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of this, the embodiments of the present specification provide a foldable bicycle with an expandable cargo space and convenient force application.

[0007] (II) Technical solution

[0008] In order to solve the technical problems, the utility model provides the following technical solutions: a foldable bicycle with expandable space, comprising a frame and a storage bag, the frame comprising two independent supporting vertical frames arranged at the rear end, the two supporting vertical frames forming an unobstructed opening at the rear end of the storage bag, the frame is hinged with a push rod that can be flipped up and down on one side of the rear end of the storage bag, the push rod comprises a push handle position and a storage position that can lie flat, and the frame is correspondingly provided with an upper connecting piece and a lower abutment piece; when the push rod is in the push handle position, the push rod flips upward and engages with the upper connecting piece; when the push rod switches from the push handle position to the storage position, the push rod flips downward and abuts against the lower abutment piece, and the rear end of the storage bag can be connected to the push rod when lying flat through the opening to form an extended storage space.

[0009] Compared with the prior art, the advantages of the utility model are: when the push rod is in the push handle position, the push rod flips upward and engages with the upper connecting piece. At this time, the user can push and pull the folding bicycle through the push rod. When the push rod is in the storage position, the push rod forms a storage platform, and the push rod abuts against the lower abutment piece. The storage platform formed by the push rod is connected to the storage bag without obstruction through the opening, the loading space is expanded, and the needs of the push rod and the loading are met at the same time. At the same time, the overall structure is simple and the cost is effectively controlled.

[0010] In some embodiments, a movably detachable closing cloth is provided at the rear end of the storage bag, and the closing cloth is connected to the storage bag magnetically, or by a zipper, or by adhesion. Through the improvement, when the push rod is in the push handle position, the closing cloth is installed on the storage bag to prevent items in the storage bag from falling out of the storage bag during the folding process of the bicycle. When the push rod is in the storage position, the closing bag on the storage bag is removed to open up the storage space on the push rod and the storage space on the storage bag, thereby expanding the carrying space of the folding bicycle.

[0011] In some embodiments, the upper connecting member includes a connecting groove, and the push rod includes a storage portion. When the push rod is in the push handle position, the storage portion is accommodated in the connecting groove. When the push rod is in the storage position, the storage portion is less than 180° from the horizontal plane. Through the improvement, when the push rod is in the push handle position, by accommodating the storage portion in the connecting groove, the push rod is prevented from shaking when the folding cart is pushed by the push rod, making the folding cart more stable during movement, and when the push rod is in the storage position, the unfolding angle of the storage portion is less than or equal to 180°, preventing items from sliding down when they are placed on the storage portion.

[0012] In some embodiments, an active cavity is provided in the upper connecting member, and a limit member that can slide left and right in the active cavity is provided in the active cavity. A fastener that cooperates with the upper connecting member is installed on the push rod, and the fastener includes a card block. The connecting groove is provided with a first limit groove for passing the card block, and the limit member is provided with a second limit groove that cooperates with the card block. When the push rod is in the push hand position, the card block passes through the first limit groove and the second limit groove in sequence, and the card block is provided with a card connection groove. When the card block is inserted into the second limit groove, the limit member is slid to make the limit member card connection in the card connection groove. Through the improvement, the card block passes through the first limit groove and the second limit groove in sequence, so that the limit member is card connection in the card connection groove. The limit member limits the fastener, so that the push rod is more tightly connected to the upper connecting member, preventing the push rod from detaching from the connecting groove when the push rod is in the push hand position.

[0013] In some embodiments, a spring is provided on the inner end face of the limiting member, and the two ends of the spring are respectively against the inner end face of the limiting member and the wall surface of the movable cavity. The limiting member is pressed, the spring is compressed, and the limiting member is disengaged from the snap-fitting groove. Through the improvement, the spring is set, the limiting member is pressed, and the clamping block passes through the first limiting groove and the second limiting groove in sequence. The limiting member is released, so that the spring restores its deformation, drives the limiting member to slide in the movable cavity, and the limiting member is snap-fitted into the snap-fitting groove, thereby realizing the limitation of the snap member. The operation is simple, and time and effort are saved.

[0014] In some embodiments, a limiting column is protruded from the inner end face of the limiting member, and the spring is sleeved on the limiting column. Through the improvement, the spring is sleeved on the limiting column, which provides rigidity for the spring to prevent the spring from shaking during operation, and at the same time limits the spring to prevent the spring from shifting during operation.

[0015] In some embodiments, the upper connecting member includes a pressing groove connected to the movable cavity, and the limiting member includes a pressing part extending from the pressing groove. By pressing the pressing part, the limiting member slides toward the inner side of the movable cavity and the spring is compressed. Through the improvement, the pressing part can be pressed to achieve the sliding of the limiting member in the movable cavity, which is convenient, quick and labor-saving to operate.

[0016] In some embodiments, the limit member includes a limit block, and the upper connecting member includes a third limit groove cooperating with the limit block. When the spring recovers and deforms, the limit block of the limit member moves to the third limit groove, the wall surface of the limit block abuts against the wall surface of the third limit groove, thereby limiting the limit member. Through the improvement, when the limit block of the limit member moves to the third limit groove, the wall surface of the limit block abuts against the wall surface of the third limit groove, thereby limiting the limit member and preventing the limit member from leaving the movable cavity.

[0017] In some embodiments, the upper connecting member includes a mounting hole for mounting on the supporting vertical frame, and the upper connecting member is plugged into the supporting vertical frame through the mounting hole. Through the improvement, the upper connecting member can be installed on the supporting vertical frame by plugging into the mounting hole, and the operation is simple and quick.

[0018] In some embodiments, a protrusion is protruded inwardly from the wall surface of the mounting hole, and the protrusion abuts against the wall surface of the supporting vertical frame. Through the improvement, the friction between the mounting hole and the supporting vertical frame can be increased by abutting against the wall surface of the supporting vertical frame, making the connection between the upper connecting member and the supporting vertical frame tighter.

[0019] (III) Beneficial effects

[0020] The utility model provides a foldable bicycle with expandable space. When the push rod is in the push handle position, the push rod rotates upward to make the buckle part buckle in the upper connecting part. At this time, the user can push and pull the foldable bicycle through the push rod. When the push rod is in the storage position, the push rod forms a storage platform, and the push rod abuts against the lower abutment part. The storage platform formed by the push rod and the storage platform in the bicycle frame are connected as one, the loading space is expanded, and the needs of the push rod and the loading are met. At the same time, the overall structure is simple and the cost is effectively controlled. Pressing the limit piece makes the clamping block pass through the first limit groove and the second limit groove in sequence, and releasing the limit piece makes the spring restore the deformation, driving the limit piece to slide in the active cavity, so that the limit piece is clamped in the clamping groove, and the clamping piece is limited. The operation is simple and time-saving and labor-saving. The clamping block passes through the first limit groove and the second limit groove in sequence, so that the limit piece is clamped in the clamping groove, and the limit piece limits the clamping piece. The spring is set to press the limit piece, so that the clamping block passes through the first limit slot and the second limit slot in sequence, and the limit piece is released, so that the spring recovers its deformation, drives the limit piece to slide in the active cavity, and the limit piece is clamped in the clamping slot, so as to limit the buckle piece, which is simple to operate and saves time and effort; when the limit block of the limit piece moves to the third limit slot, the wall surface of the limit block abuts against the wall surface of the third limit slot, limits the limit piece, and prevents the limit piece from being separated from the active cavity; when the push rod is in the push handle position, the closed cloth is installed on the storage bag to prevent the items in the storage bag from being separated from the storage bag during the folding process of the folding bicycle, and when the push rod is in the storage position, the closed bag on the storage bag is disassembled, the storage space on the push rod and the storage space on the storage bag are opened up, and the loading space of the folding bicycle is expanded. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of the push rod of the utility model when handling an object;

[0023] Figure 2 It is a structural schematic diagram of the push rod of the utility model when it is in the push handle position;

[0024] Figure 3 It is a schematic diagram of the structure of the push rod and the lower abutment member of the utility model;

[0025] Figure 4 It is a schematic diagram of the structure of the upper connecting member and the buckle member of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the upper connecting member of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the upper connecting member of the utility model from another angle;

[0028] Figure 7 It is a cross-sectional structural schematic diagram of the upper connecting member of the utility model;

[0029] Figure 8 It is a structural schematic diagram of the buckle of the utility model;

[0030] Fig. 9 It is a structural schematic diagram of the position limiting member of the utility model;

[0031] Fig.10 It is a schematic cross-sectional structural diagram of the upper connecting member, the buckle member, and the limiting member of the utility model when they are not pressed;

[0032] Fig.11 It is a schematic cross-sectional view of the upper connecting member, the buckle member, and the limit member of the utility model in a pressed state;

[0033] Fig.12 It is a structural schematic diagram of the folding bicycle of the utility model in a folded state;

[0034] Fig.13 It is a structural schematic diagram of the supporting vertical frame of the utility model.

[0035] In the figure: 1. frame; 1.1. supporting vertical frame; 2. push rod; 2.1. storage part; 2.2. push handle part; 3. upper connecting member; 3.1. connecting groove; 3.2. movable cavity; 3.3. first limiting groove; 3.4. pressing groove; 3.5. mounting hole; 3.6. protrusion; 3.7. third limiting groove; 3.8. through groove; 4. lower abutment member; 5. snap member; 5.1. clamping block; 5.2. clamping groove; 6. limiting member; 6.1. second limiting groove; 6.2. limiting column; 6.3. pressing part; 6.4. limiting block; 7. spring; 8. storage bag; 8.1. closing cloth; 9. open mouth; 10. rear cargo bag. DETAILED DESCRIPTION

[0036] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0038] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0039] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0040] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0041] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0042] See also Figure 1-13As shown in this embodiment: a folding bicycle with expandable space includes a frame 1 and a storage bag 8, the frame 1 includes two independent supporting vertical frames 1.1 arranged at the rear end, the two supporting vertical frames 1.1 form an unobstructed opening 9 at the rear end of the storage bag 8, the frame 1 is hinged with a push rod 2 that can be flipped up and down on one side of the rear end of the storage bag 8, the push rod 2 includes a push handle position and a storage position that can lie flat, and the frame 1 is correspondingly provided with an upper connecting member 3 and a lower abutment member 4; when the push rod 2 is in the push handle position, the push rod 2 flips upward and engages with the upper connecting member 3; when the push rod 2 switches from the push handle position to the storage position, the push rod 2 flips downward and abuts on the lower abutment member 4, and the rear end of the storage bag 8 can be connected with the push rod 2 lying flat through the opening 9 to form an extended storage space.

[0043] When the push rod 2 is in the push handle position, the push rod 2 flips upward and engages with the upper connecting piece 3. At this time, the user can push and pull the folding bicycle through the push rod 2. When the push rod 2 is in the storage position, the push rod 2 forms a storage platform, and the push rod 2 abuts against the lower abutment piece 4. The storage platform formed by the push rod 2 is connected to the storage bag 8 without obstruction through the opening 9, so that the loading space is expanded, and the needs of the push rod 2 and the loading are met at the same time. At the same time, the overall structure is simple and the cost is effectively controlled.

[0044] In some embodiments, Figure 2 As shown, a movably detachable closing cloth 8.1 is provided at the rear end of the storage bag 8, and the closing cloth 8.1 is connected to the storage bag 8 magnetically, zippered, or adhesively. It should be noted that when the push rod 2 is in the push-hand position, the closing cloth 8.1 is installed on the storage bag 8 to prevent the items in the storage bag 8 from falling out of the storage bag 8 during the folding process of the bicycle. When the push rod 2 is in the storage position, the closing bag on the storage bag 8 is removed to open up the storage space on the push rod 2 and the storage space on the storage bag 8, thereby expanding the carrying space of the folding bicycle.

[0045] In some embodiments, Figure 2-Figure 4 As shown, the upper connecting member 3 includes a connecting groove 3.1, and the push rod 2 includes a storage portion 2.1. When the push rod 2 is located at the push handle position, the storage portion 2.1 is accommodated in the connecting groove 3.1. When the push rod 2 is located at the storage position, the storage portion 2.1 is less than 180° from the horizontal plane. It should be noted that when the push rod 2 is located at the push handle position, by accommodating the storage portion 2.1 in the connecting groove 3.1, when the folding cart is pushed by the push rod 2, the push rod 2 is prevented from shaking, so that the folding cart is more stable during movement, and when the push rod 2 is located at the storage position, the unfolding angle of the storage portion 2.1 is less than or equal to 180°, so as to prevent items from sliding down when they are placed on the storage portion 2.1.

[0046] It should be noted that the push rod 2 includes a handle portion 2.2 disposed outside the storage portion 2.1. When the push rod 2 is in the handle position, the end of the handle portion 2.2 is tilted outward, making it more convenient and labor-saving for the user to push the folding bicycle.

[0047] In some embodiments, Figure 2-Figure 4 As shown, a rear cargo bag 10 is provided on the storage portion 2.1.

[0048] In some embodiments, Figure 5-Figure 11 As shown, the upper connecting member 3 is provided with an active cavity 3.2, and the active cavity 3.2 is provided with a limiting member 6 that can slide left and right in the active cavity 3.2. A buckle 5 that cooperates with the upper connecting member 3 is installed on the push rod 2. The buckle 5 includes a clamping block 5.1. The connecting groove 3.1 is provided with a first limiting groove 3.3 for passing through the clamping block 5.1. The limiting member 6 is provided with a second limiting groove 6.1 that cooperates with the clamping block 5.1. When the push rod 2 is in the push handle position, the clamping block 5.1 passes through the first limiting groove 3.3 and the second limiting groove 6.1 in sequence. .1, the card block 5.1 is provided with a card connection groove 5.2. When the card block 5.1 is inserted into the second limiting groove 6.1, the sliding limiting member 6 is engaged with the limiting member 6 in the card connection groove 5.2. It should be noted that the card block 5.1 passes through the first limiting groove 3.3 and the second limiting groove 6.1 in sequence, so that the limiting member 6 is engaged with the card connection groove 5.2. The limiting member 6 limits the buckle 5, so that the push rod 2 is more tightly connected to the upper connecting member 3, preventing the push rod 2 from being separated from the connecting groove 3.1 when the push rod 2 is in the push handle position.

[0049] In some embodiments, Figure 5-Figure 11 As shown, a spring 7 is provided on the inner end face of the limiting member 6, and the two ends of the spring 7 are respectively against the inner end face of the limiting member 6 and the wall surface of the active cavity 3.2. The limiting member 6 is pressed, and the spring 7 is compressed, so that the limiting member 6 is separated from the clamping groove 5.2. It should be noted that the setting of the spring 7 presses the limiting member 6 so that the clamping block 5.1 passes through the first limiting groove 3.3 and the second limiting groove 6.1 in sequence, and the limiting member 6 is released so that the spring 7 recovers its deformation, drives the limiting member 6 to slide in the active cavity 3.2, and the limiting member 6 is clamped in the clamping groove 5.2, thereby realizing the limitation of the buckle 5. The operation is simple, and time and labor are saved.

[0050] In some embodiments, Figure 9-11 As shown, the inner end surface of the limit member 6 is protruded with a limit column 6.2, and the spring 7 is sleeved on the limit column 6.2. It should be noted that the spring 7 is sleeved on the limit column 6.2 to provide rigidity for the spring 7 to prevent the spring 7 from shaking during operation, and at the same time limit the spring 7 to prevent the spring 7 from shifting during operation.

[0051] In some embodiments, Figure 7-Figure 9As shown, the upper connecting member 3 includes a pressing groove 3.4 connected to the active cavity 3.2, and the limiting member 6 includes a pressing portion 6.3 extending from the pressing groove 3.4. By pressing the pressing portion 6.3, the limiting member 6 slides toward the inner side of the active cavity 3.2, and the spring 7 is compressed. It should be noted that pressing the pressing portion 6.3 can realize the sliding of the limiting member 6 in the active cavity 3.2, which is convenient, quick and labor-saving to operate.

[0052] In some embodiments, Figure 7-Figure 11 As shown, the limit member 6 includes a limit block 6.4, and the upper connecting member 3 includes a third limit groove 3.7 cooperating with the limit block 6.4. When the spring 7 recovers its deformation and the limit block 6.4 of the limit member 6 moves to the third limit groove 3.7, the wall surface of the limit block 6.4 abuts against the wall surface of the third limit groove 3.7, so as to limit the limit member 6. It should be noted that when the limit block 6.4 of the limit member 6 moves to the third limit groove 3.7, the wall surface of the limit block 6.4 abuts against the wall surface of the third limit groove 3.7, so as to limit the limit member 6 and prevent the limit member 6 from leaving the active cavity 3.2.

[0053] In some embodiments, Figure 7 As shown, the upper connecting member 3 includes a mounting hole 3.5 for mounting on the supporting vertical frame 1.1. The upper connecting member 3 is plugged into the supporting vertical frame 1.1 through the mounting hole 3.5. It should be noted that the upper connecting member 3 can be installed on the supporting vertical frame 1.1 by plugging into the supporting vertical frame 1.1 through the mounting hole 3.5. The operation is simple and quick.

[0054] In some embodiments, Figure 7 As shown, a protrusion 3.6 protrudes inward from the wall surface of the mounting hole 3.5, and the protrusion 3.6 abuts against the wall surface of the supporting vertical frame 1.1. It should be noted that the friction between the mounting hole 3.5 and the supporting vertical frame 1.1 can be increased by abutting the protrusion 3.6 against the wall surface of the supporting vertical frame 1.1, so that the connection between the upper connecting member 3 and the supporting vertical frame 1.1 is tighter.

[0055] It should be pointed out that the wall surface of the upper connecting member 3 is provided with two parallel through grooves 3.8, and the two through grooves 3.8 are respectively arranged on the left and right sides of the protrusion 3.6. Through the arrangement of the through grooves 3.8, the rigidity of the wall surface of the upper connecting member 3 at the protrusion 3.6 is reduced, making it easier to install the upper connecting member 3 on the supporting vertical frame 1.1, and preventing the upper connecting member 3 from being damaged.

[0056] Working principle: when the push rod 2 is in the push handle position, the push rod 2 rotates upward to make the latch 5 buckle in the upper connecting member 3, and the clamping block 5.1 passes through the first limiting groove 3.3 and the second limiting groove 6.1 in sequence, and the limiting member 6 is clamped in the clamping groove 5.2 to limit the locking member 5. At this time, the user can push and pull the folding bicycle through the push rod 2, press the pressing part 6.3, and the limiting member 6 disengages from the clamping groove 5.2 to release the limit on the push rod 2, and push the push rod 2 downward to make the push rod 2 abut against the lower abutment member 4. At this time, the push rod 2 is in the storage position, and the push rod 2 forms a storage platform, which is integrated with the storage platform in the frame 1, and the loading space is expanded, while meeting the needs of the push rod 2 and the loading.

[0057] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0058] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A foldable bicycle with expandable space, comprising a bicycle frame (1) and a storage bag (8), characterized in that: The frame (1) comprises two independent vertical support frames (1.1) arranged at the rear end, the two vertical support frames (1.1) form an unobstructed opening (9) at the rear end of the storage bag (8), the frame (1) is hinged with a push rod (2) that can be flipped up and down on one side of the rear end of the storage bag (8), the push rod (2) comprises a push handle position and a storage position that can lie flat, and the frame is correspondingly provided with an upper connecting member (3) and a lower abutting member (4); when the push rod (2) is in the push handle position, the push rod (2) flips upward and engages with the upper connecting member (3); when the push rod (2) switches from the push handle position to the storage position, the push rod (2) flips downward and abuts against the lower abutting member (4), and the rear end of the storage bag (8) can be connected to the push rod (2) lying flat through the opening (9) to form an extended storage space.

2. A foldable bicycle with expandable space according to claim 1, characterized in that: A detachable closing cloth (8.1) is provided at the rear end of the storage bag (8), and the closing cloth (8.1) is connected to the storage bag (8) magnetically, zippered, or adhesively.

3. The foldable bicycle with expandable space according to claim 1, characterized in that: The upper connecting member (3) comprises a connecting groove (3.1), and the push rod (2) comprises a storage portion (2.1); when the push rod (2) is located at the push handle position, the storage portion (2.1) is accommodated in the connecting groove (3.1); when the push rod (2) is located at the storage position, the expansion angle of the storage portion (2.1) is less than or equal to 180°.

4. The foldable bicycle with expandable space according to claim 3, characterized in that: The upper connecting member (3) is provided with an active cavity (3.2), and the active cavity (3.2) is provided with a limiting member (6) that can slide left and right in the active cavity (3.2). The push rod (2) is provided with a buckle member (5) that cooperates with the upper connecting member (3), and the buckle member (5) includes a clamping block (5.1). The connecting groove (3.1) is provided with a first limiting groove (3.3) for passing through the clamping block (5.1), and the limiting member (6) is provided with a first limiting groove (3.3) that cooperates with the clamping block (5.1). The clamping block (5.1) cooperates with the second limiting groove (6.1). When the push rod (2) is located at the push handle position, the clamping block (5.1) passes through the first limiting groove (3.3) and the second limiting groove (6.1) in sequence. The clamping block (5.1) is provided with a clamping groove (5.2). When the clamping block (5.1) is inserted into the second limiting groove (6.1), the limiting member (6) is slid so that the limiting member (6) is clamped into the clamping groove (5.2).

5. The foldable bicycle with expandable space according to claim 4, characterized in that: The inner end surface of the limiting member (6) is provided with a spring (7), and the two ends of the spring (7) respectively abut against the inner end surface of the limiting member (6) and the wall surface of the movable cavity (3.2). When the limiting member (6) is pressed, the spring (7) is compressed, so that the limiting member (6) is disengaged from the clamping groove (5.2).

6. The foldable bicycle with expandable space according to claim 5, characterized in that: A limiting column (6.2) is protruded from the inner end surface of the limiting member (6), and the spring (7) is sleeved on the limiting column (6.2).

7. The foldable bicycle with expandable space according to claim 5, characterized in that: The upper connecting member (3) comprises a pressing groove (3.4) connected to the active cavity (3.2), and the limiting member (6) comprises a pressing portion (6.3) extending from the pressing groove (3.4); when the pressing portion (6.3) is pressed, the limiting member (6) slides toward the inside of the active cavity (3.2), and the spring (7) is compressed.

8. The foldable bicycle with expandable space according to claim 5, characterized in that: The limiting member (6) comprises a limiting block (6.4), and the upper connecting member (3) comprises a third limiting groove (3.7) cooperating with the limiting block (6.4); when the spring (7) recovers its deformation and the limiting block (6.4) of the limiting member (6) moves to the third limiting groove (3.7), the wall surface of the limiting block (6.4) abuts against the wall surface of the third limiting groove (3.7), thereby limiting the limiting member (6).

9. The foldable bicycle with expandable space according to claim 5, characterized in that: The upper connecting member (3) comprises a mounting hole (3.5) for mounting on the supporting vertical frame (1.1); the upper connecting member (3) is plugged into the supporting vertical frame (1.1) through the mounting hole (3.5).

10. The foldable bicycle with expandable space according to claim 9, characterized in that: A convex block (3.6) protrudes inwardly from the wall surface of the mounting hole (3.5), and the convex block (3.6) abuts against the wall surface of the supporting vertical frame (1.1).

Images