Two-wheeled bicycle with box body

Abstract

The utility model relates to the technical field of two-wheeled bicycles, and discloses a two-wheeled bicycle with a box body, which comprises a frame and the box body, the frame comprises a main beam tube, a head tube is arranged at the head end of the main beam tube, a rotatable front fork is arranged in the head tube, a vertical tube is arranged at the tail end of the main beam tube, a seat tube is arranged in the vertical tube, and a middle tube is arranged in the middle of the main beam tube. A rotatable handle vertical rod is arranged in the middle pipe, the bottom of the handle vertical rod extends out of the middle pipe and is connected with one side of the front fork through a pull rod, so that the handle vertical rod drives the front fork to rotate, and a containing area used for installing a box body is formed between the head pipe and the middle pipe. According to the two-wheeled bicycle with the box body, the frame in a special form is designed to meet the installation requirement of the box body, the normal steering function is achieved, and the structure is reasonable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to two -wheeled bicycle technical field especially a two -wheeled bicycle with box. BACKGROUND

[0002] In view of traditional two -wheeled bicycle, in some use occasions, the demand of its large load capacity, then hope to install the box on the frame, to meet the needs of children or load etc. However, install bulky box then need to make big change to the original bicycle frame, the length and width size of whole vehicle, steering system, transmission system etc. are influenced, otherwise will influence normal use and assembly transportation, need optimization design. UTILITY MODEL CONTENT

[0003] The utility model discloses a two -wheeled bicycle with box to solve the problem in the background art, meet normal use and load requirement.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A two -wheeled bicycle with box, including frame and box, the frame includes main beam pipe, the head pipe is set up at the head end of main beam pipe, the head pipe is set up in rotatable front fork, the tail pipe is set up at the tail end of main beam pipe, and the seat pipe is set up in tail pipe, and the middle pipe is set up in the middle part of main beam pipe, and the handlebar stem is set up in middle pipe, and the bottom of handlebar stem stretches out middle pipe and is connected with one side of front fork through pull rod, so that handlebar stem drives front fork to rotate, and the head pipe forms the placement area for installing the box between middle pipe.

[0006] As an optional scheme, the main beam pipe includes front section and rear section, and the head pipe and middle pipe are arranged on the front section, and the tail pipe is arranged on the rear section, and the front section and rear section are inserted and fixedly connected as a whole.

[0007] As an optional scheme, the pipe opening of rear section is provided with outer pipe portion and inner pipe portion arranged in coaxial gap, the pipe opening of front section is inserted between outer pipe portion and inner pipe portion, and the pipe opening of front section, outer pipe portion and inner pipe portion are respectively provided with fixing holes for inserting locking pieces.

[0008] As an optional scheme, the surface of front section is provided with first side plate along the axial direction thereof, and the surface of rear section is provided with second side plate along the axial direction thereof, the first side plate and second side plate are spliced as a whole when the front section and rear section are inserted and fixedly connected, and the first side plate and second side plate are locked through the connecting plate.

[0009] As an optional scheme, the reinforcing pipe is arranged between the front section and middle pipe, and the connecting portion is arranged on the rear section and fixedly connected with the reinforcing pipe, and the notch is arranged on the connecting portion and embedded with the reinforcing pipe.

[0010] As an alternative, the bottom of the vertical rod is provided with a horizontal swing arm, a vertical pin shaft is arranged between one end of the pull rod and the horizontal swing arm, the vertical pin shaft is hinged with the pull rod, the vertical pin shaft is arranged in the end of the horizontal swing arm and is assembled with a bearing between the horizontal swing arm, a convex edge is arranged on the vertical pin shaft, and the lower surface of the convex edge is attached to the upper surface of the end of the horizontal swing arm.

[0011] As an alternative, a joint bearing is arranged between one end of the pull rod and the front fork, a mounting bolt is arranged in the inner spherical surface part of the joint bearing, the mounting bolt is fixed on the front fork, and the outer spherical surface part of the joint bearing is fixed on the pull rod.

[0012] As an alternative, a first mounting plate is arranged on the main beam pipe and is fixed to the front side of the box body, and a second mounting plate is arranged on the middle pipe and is fixed to the rear side of the box body.

[0013] As an alternative, support pipes are arranged on both sides of the main beam pipe and form supports for the bottom surface of the box body, and a third mounting plate is arranged between the support pipes and the main beam pipe and is fixed to the bottom surface of the box body.

[0014] As an alternative, a support foot is arranged at the bottom of the main beam pipe.

[0015] The beneficial effects of the utility model are as follows:

[0016] The two-wheeled bicycle with a box body is designed with a special frame to meet the requirements of adding the box body and realize normal steering function, and the structure is reasonable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the first perspective view of the two-wheeled bicycle with a box body provided by the utility model embodiment;

[0018] Figure 2 is the second perspective view of the two-wheeled bicycle with a box body provided by the utility model embodiment;

[0019] Figure 3 is the third perspective view of the two-wheeled bicycle with a box body provided by the utility model embodiment;

[0020] Figure 4 is the exploded view of part of the structure of the frame of the two-wheeled bicycle with a box body provided by the utility model embodiment;

[0021] Figure 5 is Figure 1 the enlarged view of A in the figure;

[0022] Figure 6 is Figure 2 the enlarged view of B in the figure.

[0023] IN THE DRAWINGS:

[0024] 100, frame; 101, main tube; 102, head tube; 103, front fork; 104, stand tube; 105, seat tube; 106, middle tube; 107, stem; 108, pull rod; 109, front section; 110, rear section; 111, outer tube portion; 112, inner tube portion; 113, fixing hole; 114, first side plate; 115, second side plate; 116, connecting plate; 117, reinforcing tube; 118, connecting portion; 119, horizontal swing arm; 120, vertical pin; 121, joint bearing; 122, mounting bolt; 123, first mounting plate; 124, second mounting plate; 125, support tube; 126, third mounting plate; 127, support foot; 128, protruding edge;

[0025] 200, box. DETAILED DESCRIPTION

[0026] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0027] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0029] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model.

[0030] In addition, the terms "first", "second" and the like are only used to distinguish in description, and have no special meaning.

[0031] Please refer to Figures 1 to 6 As shown in the drawings, the present embodiment provides a two-wheeled bicycle with a box, which comprises a frame 100 and a box 200, the frame 100 comprises a main beam pipe 101, the head end of the main beam pipe 101 is provided with a head pipe 102, the head pipe 102 is provided with a rotatable front fork 103, the tail end of the main beam pipe 101 is provided with a vertical pipe 104, the vertical pipe 104 is provided with a seat pipe 105, the middle part of the main beam pipe 101 is provided with a middle pipe 106, the middle pipe 106 is provided with a rotatable handlebar stem 107, the bottom of the handlebar stem 107 extends out of the middle pipe 106 and is connected with one side of the front fork 103 through a pull rod 108, so that the handlebar stem 107 drives the front fork 103 to rotate, and the head pipe 102 and the middle pipe 106 form a placing area for mounting the box 200.

[0032] Therefore, the two-wheeled bicycle with a box is designed with a special form of frame 100 to meet the requirements of adding the box 200, and realizes the normal steering function, which is reasonable and reliable in structure. Among them, the two-wheeled bicycle with a box can be used for carrying people and carrying things, and the vehicle type and the box displayed in the present embodiment are special for carrying people, but are not limited, and different types of boxes can be replaced according to the actual use scene to meet the carrying needs.

[0033] Optionally, the main beam pipe 101 comprises a front section 109 and a rear section 110, the head pipe 102 and the middle pipe 106 are arranged on the front section 109, and the vertical pipe 104 is arranged on the rear section 110, and the front section 109 and the rear section 110 are inserted and fixedly connected as a whole. The main beam pipe 101 can be divided into two parts, which is more convenient for transportation when the overall frame 100 is too long.

[0034] For details Figure 4Further, the pipe mouth of the rear section 110 is provided with an outer pipe part 111 and an inner pipe part 112 arranged in a coaxial gap, the pipe mouth of the front section 109 is inserted between the outer pipe part 111 and the inner pipe part 112, and the pipe mouth of the front section 109, the outer pipe part 111 and the inner pipe part 112 are respectively provided with fixing holes 113 for inserting locking members. The locking members are preferably bolts, which meet the requirement of convenient disassembly and assembly. In addition, the gap between the inner pipe part 112 and the outer pipe part 111 should be appropriate to ensure that the pipe mouth of the front section 109 is tightly inserted, thereby ensuring the overall structural strength of the front section 109 and the rear section 110 after being fixedly connected.

[0035] Optionally, the surface of the front section 109 is provided with a first side plate 114 along the axial direction thereof, the surface of the rear section 110 is provided with a second side plate 115 along the axial direction thereof, the first side plate 114 and the second side plate 115 are spliced into an integrated body when the front section 109 and the rear section 110 are inserted and fixedly connected, and the first side plate 114 and the second side plate 115 are locked by a connecting plate 116. The first side plate 114 and the second side plate 115 are preferably located on the lower surface of the front section 109 and the rear section 110, which can improve the strength of the front section 109 and the rear section 110, and further ensure the reliable locking of the front section 109 and the rear section 110 to avoid accidental separation.

[0036] Optionally, a reinforcing pipe 117 is arranged between the front section 109 and the middle pipe 106, and a connecting part 118 is arranged on the rear section 110 to cooperate with the reinforcing pipe 117 for fixation, and the connecting part 118 is provided with a notch for embedding the reinforcing pipe 117. The reinforcing pipe 117 is embedded in cooperation with the connecting part 118 and is fixed by bolts, which can improve the overall strength of the frame 100 and also ensure the reliable locking of the front section 109 and the rear section 110.

[0037] Optionally, as shown in Figure 6 The bottom of the vertical rod 107 is provided with a horizontal swing arm 119, a vertical pin shaft 120 is arranged between one end of the pull rod 108 and the horizontal swing arm 119, the vertical pin shaft 120 is hinged to the pull rod 108, the vertical pin shaft 120 is arranged in the end portion of the horizontal swing arm 119 and is assembled with a bearing between the horizontal swing arm 119, a convex edge 128 is arranged on the vertical pin shaft 120, and the lower surface of the convex edge 128 is attached to the upper surface of the end portion of the horizontal swing arm 119. Here, the vertical pin shaft 120 is used as a connecting member instead of a universal ball head, which can limit the movement of the pull rod 108 to a certain extent. Specifically, the lower surface of the convex edge 128 is attached to the upper surface of the end portion of the horizontal swing arm 119, so that the vertical pin shaft 120 can only rotate relative to the horizontal swing arm 119, thereby keeping the pull rod 108 in a horizontal position and preventing it from swinging up and down. This can prevent the connection between the pull rod 108 and the vertical rod 107 from being easily broken and damaged due to excessive flexibility, and ensure reliable transmission.

[0038] Optionally, as shown in Figure 5A joint bearing 121 is arranged between one end of the pull rod 108 and the front fork 103, an inner spherical surface part of the joint bearing 121 is provided with a mounting bolt 122, the mounting bolt 122 is fixed on the front fork 103, and an outer spherical surface part of the joint bearing 121 is fixed on the pull rod 108. The joint bearing 121 adopts a spherical design, allows the pull rod 108 to rotate at multiple angles relative to the front fork 103, improves flexibility and stability, and meets the requirements of steering driving.

[0039] Optionally, the main beam pipe 101 is provided with a first mounting plate 123 fixedly connected with the front side of the box body 200, and the middle pipe 106 is provided with a second mounting plate 124 fixedly connected with the rear side of the box body 200, so as to fix the box body 200.

[0040] Optionally, the main beam pipe 101 is provided with a first mounting plate 123 fixedly connected with the front side of the box body 200, and the middle pipe 106 is provided with a second mounting plate 124 fixedly connected with the rear side of the box body 200, so as to fix the box body 200.

[0041] Optionally, the bottom of the main beam pipe 101 is provided with a support foot 127 to facilitate parking.

[0042] In summary, the two-wheeled bicycle with the box body has stable overall structure, reliable and sufficient box body 200 installation, flexible driving and steering, meets the demand of large load capacity on the two-wheeled bicycle, and the split design of the frame 100 is more convenient for transportation and reduces transportation cost.

[0043] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the embodiments need not and cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A two-wheeled bicycle with a box body, comprising a frame (100) and a box body (200), characterized in that: The frame (100) includes a main beam tube (101), a head tube (102) is provided at the head end of the main beam tube (101), a rotatable front fork (103) is provided in the head tube (102), a seat tube (105) is provided in the seat tube (104) at the tail end of the main beam tube (101), a middle tube (106) is provided in the middle of the main beam tube (101), a rotatable handlebar (107) is provided in the middle tube (106), the bottom of the handlebar (107) extends out of the middle tube (106) and is connected to one side of the front fork (103) through a pull rod (108), so that the handlebar (107) drives the front fork (103) to rotate, and a placement area for installing the box (200) is formed between the head tube (102) and the middle tube (106).

2. The two-wheeled bicycle with a box body according to claim 1, characterized in that: The main beam tube (101) comprises a front section (109) and a rear section (110); the head tube (102) and the middle tube (106) are arranged on the front section (109); the vertical tube (104) is arranged on the rear section (110); and the front section (109) and the rear section (110) are plugged and fixedly connected as one body.

3. The two-wheeled bicycle with a box body according to claim 2, characterized in that: The pipe mouth of the rear section (110) is provided with an outer pipe portion (111) and an inner pipe portion (112) arranged with a coaxial gap, the pipe mouth of the front section (109) is inserted between the outer pipe portion (111) and the inner pipe portion (112), and the pipe mouth of the front section (109), the outer pipe portion (111) and the inner pipe portion (112) are respectively provided with a fixing hole (113) for inserting a locking member.

4. The two-wheeled bicycle with a box body according to claim 2, characterized in that: A first side plate (114) is provided on the surface of the front section (109) along its axial direction, and a second side plate (115) is provided on the surface of the rear section (110) along its axial direction. The first side plate (114) and the second side plate (115) are spliced ​​together when the front section (109) and the rear section (110) are plugged and fixedly connected, and the first side plate (114) and the second side plate (115) are locked by a connecting plate (116).

5. The two-wheeled bicycle with a box body according to claim 2, characterized in that: A reinforcing tube (117) is provided between the front section (109) and the middle tube (106), and a connecting portion (118) is provided on the rear section (110) for cooperating and fixing with the reinforcing tube (117). A notch is provided on the connecting portion (118) for embedding the reinforcing tube (117).

6. The two-wheeled bicycle with a box body according to claim 1, characterized in that: A horizontal swing arm (119) is provided at the bottom of the handlebar (107), and a vertical pin shaft (120) is provided between one end of the pull rod (108) and the horizontal swing arm (119). The vertical pin shaft (120) is hinged to the pull rod (108), and the vertical pin shaft (120) is passed through the end of the horizontal swing arm (119) and a bearing is assembled between the vertical pin shaft (120) and the horizontal swing arm (119). A convex edge (128) is provided on the vertical pin shaft (120), and the lower surface of the convex edge (128) is in contact with the upper surface of the end of the horizontal swing arm (119).

7. The two-wheeled bicycle with a box body according to claim 1, characterized in that: A joint bearing (121) is provided between one end of the pull rod (108) and the front fork (103), and a mounting bolt (122) is passed through the inner spherical portion of the joint bearing (121). The mounting bolt (122) is fixed to the front fork (103), and the outer spherical portion of the joint bearing (121) is fixed to the pull rod (108).

8. The two-wheeled bicycle with a box body according to claim 1, characterized in that: The main beam tube (101) is provided with a first mounting plate (123) fixedly connected to the front side of the box body (200), and the middle tube (106) is provided with a second mounting plate (124) fixedly connected to the rear side of the box body (200).

9. The two-wheeled bicycle with a box body according to claim 1, characterized in that: Support tubes (125) for supporting the bottom surface of the box body (200) are provided on both sides of the main beam tube (101); a third mounting plate (126) fixedly connected to the bottom surface of the box body (200) is provided between the support tube (125) and the main beam tube (101).

10. The two-wheeled bicycle with a box body according to claim 1, characterized in that: A supporting footrest (127) is provided at the bottom of the main beam tube (101).

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