Freight bicycle facilitating disassembly of auxiliary wheel

Abstract

The utility model discloses a freight bicycle with an auxiliary wheel convenient to disassemble, and relates to the technical field of freight bicycles, the freight bicycle with the auxiliary wheel convenient to disassemble comprises an object carrying frame, and the object carrying frame is provided with an object carrying space; the mounting base is arranged at the bottom of the carrying space, a mounting cavity is formed in the outer side wall, away from the carrying space, of the mounting base, and a mounting part is arranged on the outer side wall of the mounting cavity; the auxiliary wheel comprises a main body and a connecting piece arranged on the main body, at least one side of the connecting piece is provided with a connecting part, and the connecting part is detachably connected with the mounting part; the technical scheme provided by the utility model has the technical effects that the connecting piece is arranged on the side, connected with the mounting base, of the main body, the mounting part is arranged on the outer side wall of the bottom of the mounting base, and the connecting part is detachably connected in the mounting part, so that mounting personnel can detach the auxiliary wheel without detaching the internal structure of the loading frame.

Description

Technical Field

[0001] This utility model relates to the field of freight bicycle technology, and in particular to a freight bicycle with easily detachable auxiliary wheels. Background Technology

[0002] Freight bicycles feature cargo racks, allowing users to easily transport goods to their destinations. Propelled by human pedaling, these bicycles offer advantages such as low transportation costs and wide applicability.

[0003] The existing auxiliary wheels of freight bicycles are connected to the cargo frame inside the cargo frame, making it inconvenient to remove the auxiliary wheels from the cargo frame, thus increasing the maintenance cost of freight bicycles. Utility Model Content

[0004] The main purpose of this utility model is to provide a freight bicycle that facilitates the removal of the auxiliary wheels, making it easier to remove the auxiliary wheels from the cargo frame.

[0005] To achieve the above objectives, the present invention proposes a cargo bicycle with easily detachable auxiliary wheels, comprising a cargo frame having a cargo space;

[0006] The mounting base is located at the bottom of the cargo space. An outer wall of the mounting base opposite to the cargo space has a mounting cavity, and the outer wall of the mounting cavity has a mounting portion.

[0007] The auxiliary wheel includes a main body and a connector disposed on the main body. At least one side of the connector is provided with a connecting part, and the connecting part is detachably connected to the mounting part.

[0008] In one embodiment, the connector includes a top plate and a side plate bent downward relative to the top plate. The main body is located below the top plate and is detachably connected to the top plate. The bottom side of the side plate is bent toward the side opposite to the top plate to form a connecting portion.

[0009] In one embodiment, the top plate has side plates on both sides, and an accommodating space for accommodating the main body is formed between the two side plates. The bottom sides of the two side plates are bent toward the side away from the accommodating space to form a connecting part. The outer side wall at the bottom of the mounting cavity is provided with mounting parts corresponding to each connecting part. The connecting parts and mounting parts are detachably connected one-to-one.

[0010] In one embodiment, the auxiliary wheel further includes a drive member disposed on the main body. The auxiliary wheel has a first position extending out of the mounting cavity and a second position retracted into the mounting cavity. The drive member is used to drive the auxiliary wheel to switch between the first position and the second position.

[0011] In one embodiment, the mounting cavity has an opening, and the bottom outer wall of the mounting cavity is provided with a mounting portion corresponding to at least one edge of the opening. The top of the connector extends into the mounting cavity from the opening, and the connector is located outside the mounting base and is detachably connected to the mounting portion.

[0012] In one embodiment, mounting portions are provided on the opposite sides of the opening, and connecting portions are provided on the opposite sides of the bottom of the connector. The connecting portions and mounting portions are detachably connected one-to-one.

[0013] In one embodiment, the mounting portion has a mounting groove recessed toward the inside of the mounting base, and the connecting portion is detachably mounted in the mounting groove.

[0014] In one embodiment, the mounting groove includes a bottom wall that abuts against the connecting part, and the bottom wall and the connecting part are respectively provided with connecting holes for fastener installation, the fasteners being used to detachably connect the bottom wall and the connecting part.

[0015] In one embodiment, the length of the mounting groove is greater than the length of the connecting portion in the extending direction of the opening.

[0016] In one embodiment, the outer side wall of the mounting base is recessed on the side facing the loading space to form at least two mounting cavities, and the at least two mounting cavities are spaced apart from each other on the mounting base.

[0017] The technical solution of this utility model sets the connector on the side where the main body connects to the mounting base, and provides a mounting part on the outer side wall of the bottom of the mounting base. The connector is detachably connected to the mounting part, so that the mounting connection structure of the auxiliary wheel and the mounting base are both located outside the loading frame. This allows the installer to remove the auxiliary wheel without disassembling the internal structure of the loading frame, thereby improving the flexibility of the auxiliary wheel's disassembly and assembly, and also improving the utilization rate of the internal space of the loading frame. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of a cargo bicycle with easily detachable auxiliary wheels provided by this utility model;

[0020] Figure 2 A bottom view of the structure of an embodiment of the freight bicycle with easily detachable auxiliary wheels provided by this utility model;

[0021] Figure 3 A schematic diagram of the auxiliary wheel structure in one embodiment of the freight bicycle with easily detachable auxiliary wheels provided by this utility model;

[0022] Figure 4 A schematic diagram of the mounting base in one embodiment of the freight bicycle for which auxiliary wheels can be easily removed, provided by this utility model.

[0023] Explanation of icon numbers:

[0024] 1. Carrying frame; 2. Mounting base; 21. Mounting cavity; 211. Mounting part; 2111. Mounting groove; 2112. Bottom wall; 2113. Connecting hole; 212. Opening; 3. Auxiliary wheel; 31. Main body; 32. Connecting piece; 321. Top plate; 322. Side plate; 33. Connecting part; 34. Driving component.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] This utility model proposes a freight bicycle that facilitates the removal of auxiliary wheels.

[0030] Please see Figures 1 to 3 In one embodiment of the present invention, the freight bicycle with easily detachable auxiliary wheels includes a cargo frame 1, which has a cargo space.

[0031] Mounting base 2, located at the bottom of the loading space, has a mounting cavity 21 on one outer side wall facing away from the loading space, and a mounting portion 211 is provided on the outer side wall of the mounting cavity 21; and

[0032] The auxiliary wheel 3 includes a main body 31 and a connector 32 disposed on the main body 31. At least one side of the connector 32 is provided with a connecting part 33, and the connecting part 33 is detachably connected to the mounting part 211.

[0033] The technical solution of this utility model is to set the connector 32 on the side where the main body 31 is connected to the mounting base 2, and to provide a mounting part 211 on the outer side wall of the bottom of the mounting base 2, with the connector 33 detachably connected in the mounting part 211, so that the mounting connection structure of the auxiliary wheel 3 and the mounting base 2 are both located outside the carrying frame 1. This allows the installer to remove the auxiliary wheel 3 without disassembling the internal structure of the carrying frame 1, thereby improving the flexibility of the auxiliary wheel 3 in disassembly and assembly, and also improving the utilization rate of the internal space of the carrying frame 1.

[0034] In this embodiment, the cargo frame 1 can be an extension of the frame of the freight bicycle, or the cargo frame 1 can be the frame of the freight bicycle itself. By providing a mounting cavity 21 that is relatively separated from the cargo space on the mounting base 2, the auxiliary wheel 3 can be completely stored in the mounting cavity 21, thus not affecting the appearance of the freight bicycle. Furthermore, the relative separation between the mounting cavity 21 and the cargo space ensures that the mounting cavity 21 and the cargo space do not interfere with each other, so that the auxiliary wheel 3 stored in the mounting cavity 21 does not affect the goods in the cargo space. To improve the stability of the connection between the auxiliary wheel 3 and the cargo frame 1, both sides of the connector 32 can be provided with connecting portions 33, and the connector 32 is connected to the mounting portion 211 through the connecting portions 33 on both sides. Both the connector 32 on the auxiliary wheel 3 and the mounting part 211 on the mounting base 2 are located outside the carrying frame 1. Therefore, during the installation or removal of the auxiliary wheel 3, the operator does not need to disassemble the carrying frame 1. He only needs to remove the screws or bolts connecting the connector 33 and the mounting part 211 to remove the auxiliary wheel 3 from the mounting base 2, which makes it easier for the operator to remove the auxiliary wheel 3.

[0035] like Figure 3 As shown, in this embodiment, the connector 32 includes a top plate 321 and a side plate 322 bent downward relative to the top plate 321. The main body 31 is located below the top plate 321 and is detachably connected to the top plate 321. The bottom side of the side plate 322 is bent toward the side away from the top plate 321 to form a connecting part 33.

[0036] In this embodiment, at least one side of the top plate 321 is provided with a side plate 322, so that the connector 32 forms an L-shape or a U-shape, thereby facilitating the assembly and disassembly of the main body 31 and the top plate 321. The main body 31 and the top plate 321 can be detachably connected by bolts, screws, fixing posts or pins. The side plate 322 is located on one side of the top plate 321. A connecting part 33 is formed by bending the bottom side of the side plate 322 toward the side opposite to the top plate 321, so that the connecting part 33 protrudes from the side plate 322, thereby facilitating the assembly and disassembly of the connecting part 33 and the mounting part 211, and ensuring that the assembly and disassembly of the connecting part 33 and the mounting part 211 does not affect the connection between the main body 31 and the top plate 321.

[0037] like Figure 3 As shown, in this embodiment, the top plate 321 has side plates 322 on both sides, and a receiving space for accommodating the main body 31 is formed between the two side plates 322. The bottom sides of the two side plates 322 are bent toward the side away from the receiving space to form connecting parts 33. The outer side wall of the bottom of the mounting cavity 21 is provided with mounting parts 211 corresponding to each connecting part 33. The connecting parts 33 and the mounting parts 211 are detachably connected one-to-one.

[0038] In this embodiment, to further improve the stability of the connection between the auxiliary wheel 3 and the carrying frame 1, both sides of the top plate 321 are bent to form side plates 322, making the shape of the connector 32 U-shaped. The main body 31 can be installed in the middle of the accommodating space formed between the two side plates 322, thereby making the force on the top plate 321 more even. The two side plates 322 are located on opposite sides of the top plate 321, and the bottom side of the two side plates 322 is bent towards the side away from the accommodating space to form a connecting part 33, so that the connecting part 33 protrudes from the side plate 322. The outer side wall of the bottom of the carrying frame 1 is provided with mounting parts 211 corresponding to the relative positions of each connecting part 33. The connecting part 33 is installed on the mounting part 211 by fasteners, thereby facilitating the assembly and disassembly of the connecting part 33 and the mounting part 211.

[0039] In this embodiment, the auxiliary wheel 3 further includes a driving member 34 disposed on the main body 31. The auxiliary wheel 3 has a first position extending out of the mounting cavity 21 and a second position retracted into the mounting cavity 21. The driving member 34 is used to drive the auxiliary wheel 3 to switch between the first position and the second position. The driving member 34 can be a motor, electric motor, or other driving member capable of driving the auxiliary wheel 3 to rotate, thereby facilitating the switching of the auxiliary wheel 3 between the first position and the second position. When the auxiliary wheel 3 is in the first position, the wheel portion of the main body 31 away from the connecting member 32 extends out of the mounting cavity 21, thereby facilitating the movement of the freight bicycle. When the auxiliary wheel 3 is in the second position, the auxiliary wheel 3 is completely retracted into the mounting cavity 21, so that the auxiliary wheel 3 does not affect the overall appearance of the freight bicycle when in the second position.

[0040] like Figure 1 and 3 As shown, in this embodiment, the mounting cavity 21 has an opening 212, and the bottom outer wall of the mounting cavity 21 is provided with a mounting portion 211 corresponding to at least one side edge of the opening 212. The top of the connector 32 extends into the mounting cavity 21 from the opening 212, and the connector 33 is located outside the mounting base 2 and is detachably connected to the mounting portion 211.

[0041] In this embodiment, the mounting cavity 21 has an opening 212, which facilitates the housing of the top plate 321, side plate 322, and part of the main body 31 within the mounting cavity 21. The connecting part 33 is located outside the mounting cavity 21, which facilitates the operator to detach the connecting part 33 from the mounting part 211. The bottom outer wall of the mounting cavity 21 has a mounting part 211 at least on one side edge corresponding to the opening 212, such that the position of the mounting part 211 corresponds to the position of the connecting part 33 in the vertical direction, thereby facilitating the detachable connection between the connecting part 33 and the mounting part 211.

[0042] like Figure 1 and 3As shown, in this embodiment, mounting portions 211 are provided on the opposite sides of the opening 212, and connecting portions 33 are provided on the opposite sides of the bottom of the connector 32. The connecting portions 33 and the mounting portions 211 are detachably connected one-to-one.

[0043] In this embodiment, in order to further improve the stability of the connection between the auxiliary wheel 3 and the mounting base 2, mounting portions 211 are provided on the opposite sides of the opening 212, and side plates 322 are formed by bending on both sides of the top plate 321. Both side plates 322 are provided with connecting portions 33, so that the position of the mounting portion 211 corresponds to the position of the connecting portion 33 in the vertical direction, thereby facilitating the assembly and disassembly of the connecting portion 33 and the mounting portion 211.

[0044] like Figure 1 As shown, in this embodiment, the mounting part 211 has a mounting groove 2111 recessed toward the inner side of the mounting base 2, and the connecting part 33 is detachably mounted in the mounting groove 2111.

[0045] In this embodiment, the mounting portion 211 is a mounting groove 2111 recessed towards the inner side of the mounting base 2, such that the opening 212 of the mounting groove 2111 faces away from the mounting base 2, thereby facilitating the detachable installation of the connecting portion 33 into the mounting groove 2111. The connecting portion 33 may be a connecting plate formed by bending the side plate 322. The mounting groove 2111 has a notch communicating with the opening 212 on the side near the opening. The connecting portion 33 can be placed into the mounting groove 2111 through the notch, thereby further facilitating the detachable installation of the connecting portion 33 and the mounting groove 2111.

[0046] like Figure 1 As shown, in this embodiment, the mounting groove 2111 includes a bottom wall 2112 that abuts against the connecting part 33. The bottom wall 2112 and the connecting part 33 are respectively provided with connecting holes 2113 for fastener installation. The fastener is used to detachably connect the bottom wall 2112 and the connecting part 33.

[0047] In this embodiment, the connecting part 33 can be a connecting plate formed by bending the side plate 322, so that when the connecting part 33 and the mounting groove 2111 are installed, the connecting end face of the connecting part 33 better fits the bottom wall 2112 of the mounting groove 2111, and the connecting part 33 is locked in the mounting groove 2111 by fasteners, thereby improving the connection stability between the connecting part 33 and the mounting groove 2111. The fasteners can be threaded fasteners such as bolts or studs with nuts for fixing, or they can be detachable fasteners such as fixing posts and pins for fixing. The connecting hole 2113 can be set as a threaded hole or a through hole, etc., depending on the type of fastener.

[0048] In one embodiment, the length of the mounting groove 2111 is greater than the length of the connecting portion 33 in the extending direction of the opening 212.

[0049] In this embodiment, by limiting the length of the mounting groove 2111 in the extension direction of the opening 212 to be greater than the length of the connecting part 33 in the extension direction of the opening 212, interference between the connecting part 33 and the mounting groove 2111, preventing installation, and thus facilitating the installation of the connecting part 33 within the mounting groove 2111. To facilitate the detachable installation of the connecting part 33 within the mounting groove 2111, the width of the mounting groove 2111 can be slightly smaller than the width of the connecting part 33. It should be noted that the width of the mounting groove 2111 can be understood as the distance between the inner sidewall of the mounting groove 2111 perpendicular to the bottom wall 2112 and the notch, and the width of the connecting part 33 can be understood as the distance between the side of the connecting part 33 away from the side plate 322 and the side plate 322.

[0050] like Figure 3 As shown, in this embodiment, the outer side wall of the mounting base 2 is recessed on the side facing the loading space to form at least two mounting cavities 21, and the at least two mounting cavities 21 are spaced apart from each other on the mounting base 2.

[0051] In this embodiment, by setting multiple mounting cavities 21 according to the size of the mounting base 2, multiple auxiliary wheels 3 can be installed on the mounting base 2, thereby improving the stability of the auxiliary wheels 3 supporting the carrying frame 1 and the mounting base 2.

[0052] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A freight bicycle with easily detachable auxiliary wheels, characterized in that, include: A carrying frame having a carrying space; A mounting base is disposed at the bottom of the carrying space. One outer wall of the mounting base opposite to the carrying space has a mounting cavity, and the outer wall of the mounting cavity is provided with a mounting portion. An auxiliary wheel includes a main body and a connector disposed on the main body. At least one side of the connector is provided with a connecting portion, and the connecting portion is detachably connected to the mounting portion.

2. The freight bicycle with easily detachable auxiliary wheels as described in claim 1, characterized in that, The connector includes a top plate and a side plate bent downward relative to the top plate. The main body is located below the top plate and is detachably connected to the top plate. The bottom side of the side plate is bent toward the side opposite to the top plate to form the connecting portion.

3. The freight bicycle with easily detachable auxiliary wheels as described in claim 2, characterized in that, The top plate has side plates on both sides, and an accommodating space for accommodating the main body is formed between the two side plates. The bottom sides of the two side plates are bent toward the side away from the accommodating space to form the connecting part. The outer side wall of the bottom of the mounting cavity is provided with the mounting part corresponding to each of the connecting parts. The connecting part and the mounting part are detachably connected one-to-one.

4. The freight bicycle with easily detachable auxiliary wheels as described in claim 1, characterized in that, The auxiliary wheel also includes a driving member disposed on the main body. The auxiliary wheel has a first position extending out of the mounting cavity and a second position retracted into the mounting cavity. The driving member is used to drive the auxiliary wheel to switch between the first position and the second position.

5. The freight bicycle with easily detachable auxiliary wheels as described in any one of claims 1 to 4, characterized in that, The mounting cavity has an opening, and the mounting portion is provided on at least one side edge of the bottom outer wall of the mounting cavity corresponding to the opening. The top of the connector extends into the mounting cavity from the opening, and the connector is located outside the mounting base and is detachably connected to the mounting portion.

6. The freight bicycle with easily detachable auxiliary wheels as described in claim 5, characterized in that, The mounting portion is provided on the opposite two sides of the opening, and the connecting portion is provided on the opposite two sides of the bottom of the connector. The connecting portion and the mounting portion are detachably connected one-to-one.

7. The freight bicycle with easily detachable auxiliary wheels as described in claim 5, characterized in that, The mounting portion has a mounting groove recessed towards the inside of the mounting base, and the connecting portion is detachably mounted in the mounting groove.

8. The freight bicycle with easily detachable auxiliary wheels as described in claim 7, characterized in that, The mounting groove includes a bottom wall that abuts against the connecting part. The bottom wall and the connecting part are respectively provided with connecting holes for fastener installation. The fastener is used to detachably connect the bottom wall and the connecting part.

9. The freight bicycle with easily detachable auxiliary wheels as described in claim 7, characterized in that, In the extending direction of the opening, the length of the mounting groove is greater than the length of the connecting portion.

10. The freight bicycle with easily detachable auxiliary wheels as described in claim 1, characterized in that, The outer side wall of the mounting base is recessed on the side facing the loading space to form at least two mounting cavities, and the at least two mounting cavities are spaced apart from each other on the mounting base.

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