Universal pushing wheel of bicycle

Abstract

The utility model relates to the technical field of bicycles, in particular to a universal bicycle pushing wheel which comprises a bicycle body, and a pushing device is arranged on the surface of the bicycle body. The pushing device comprises an installation base and a main rod, the installation base is installed on the surface of the bicycle body, the main rod is located on one side of the installation base, a rotating part is arranged on the inner wall of the main rod, a connecting piece is installed on the surface of the rotating part and fixedly connected with the installation base through a screw, and universal wheels are installed below the main rod. By arranging the pushing device and fixing the pushing device through the mounting base and the connecting piece, the pushing device can be integrally mounted on the bicycle body, and in the process of rotating the main rod through the rotating part, the connecting piece can be matched with a T-shaped piece and a pressure spring, so that switching between a pushing mode and a folding mode of the device can be realized; and a user can be conveniently assisted in pushing the folded bicycle body to move, carrying and moving are not needed, and the overall usability is improved.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to a bicycle universal push wheel. Background Technology

[0002] A bicycle is a two-wheeled means of transportation driven by human pedaling. It mainly consists of a frame, wheels, a transmission system (chain, chainring, freewheel), a braking system (brakes), handlebars, and a seat. The frame has a triangular structure to ensure stability while riding. The wheels connect the hub and rim with spokes, and the pneumatic tires provide shock absorption. The transmission system converts pedaling force into driving force, causing the wheels to rotate. Brakes are applied by friction between the rim or a disc.

[0003] In daily use, it has been found that some existing bicycles are designed to be foldable for easy carrying. However, after being folded, some bicycles are quite heavy, making it difficult for users to lift and move them, resulting in inconvenience during the overall carrying process. Utility Model Content

[0004] The purpose of this utility model is to solve the problem in the prior art that when a bicycle is folded, the user has difficulty lifting and moving it due to the overall weight of the bicycle, which makes it inconvenient to carry. The proposed invention is a bicycle universal push wheel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a bicycle universal push wheel, including a bicycle body, wherein a push device is provided on the surface of the bicycle body;

[0006] The pushing device includes a mounting base and a main rod. The mounting base is mounted on the surface of the bicycle body, and the main rod is located on one side of the mounting base. The inner wall of the main rod has a rotating part, and a connecting piece is mounted on the surface of the rotating part. The connecting piece is fixedly connected to the mounting base by screws. A universal wheel is mounted below the main rod. A T-shaped piece is slidably connected to the inner wall of the main rod, and a pressure spring is provided between the T-shaped piece and the inner wall of the main rod. The surface of the main rod has a locking part that can lock the connecting piece, and the inner wall of the main rod has a directional locking assembly that can position the universal wheel. Through the above components, the connecting piece can be connected to the mounting base by screws. When it is necessary to use or fold, simply push the main rod, and then the connecting piece will squeeze the T-shaped piece. After rotating to different positions and contacting the T-shaped piece, it can realize the pushing operation or the folding and storage operation.

[0007] Preferably, the connecting piece includes a piece body, the surface of which is provided with a first contact surface and a second contact surface. The surface of the piece body also has a pressing part. Through these components, when pushing is required, the main rod is pushed, the rotating part rotates, and the pressing part presses against the T-shaped piece. The pressure spring is stressed. When the main rod rotates to a certain position, the pressing part loses its pressing force, the pressure spring drives the T-shaped piece to return to its original position, and it contacts the first contact surface. At this time, the main rod, in conjunction with the caster wheels, can achieve the pushing operation. Figure 1 As described above, when folding, the main rod is rotated, causing the rotating part to rotate as well. The pressing part then presses against the T-shaped piece, applying pressure to the spring. After the main rod rotates to a certain position, the pressing part loses its pressure, and the spring causes the T-shaped piece to return to its original position and contact the second contact surface, thus achieving the folding operation. Figure 2 As shown.

[0008] Preferably, the rotating part includes a locking nut and a locking screw inserted into the inner wall of the main rod. The locking screw is threaded to the inner wall of the locking nut. The locking nut is provided with a self-lubricating bearing. Through the above components, the self-lubricating bearing can drive the connecting piece to rotate, thereby realizing the switching between folding and use states.

[0009] Preferably, the locking part includes a fixing screw two mounted on the surface of the main rod, a locking hook rotatably connected to the surface of the fixing screw two, a slot for the locking hook to engage on the surface of the connecting piece, and a lever two fixedly connected to the surface of the locking hook. Through the above components, when the main rod is in a pushing state with the universal wheel, the lever two can drive the locking hook to rotate, so that the locking hook engages in the slot of the connecting piece, thereby locking the connecting piece.

[0010] Preferably, the caster wheel includes a pulley base, a fixing screw is inserted into the inner wall of the pulley base, the fixing screw is threaded to the inner wall of the main rod, a bearing body is provided between the fixing screw and the inner wall of the pulley base and the main rod, a fixing screw is provided on the inner wall of the pulley base, and the pulley body is installed through the fixing screw.

[0011] Preferably, the directional lock assembly includes a pin inserted into the inner wall of the main rod, a lever fixedly connected to the surface of the pin, a slot for the lever to engage, and a spring sleeved on the surface of the pin. The two ends of the spring are fixedly connected to the inner wall of the main rod and the surface of the pin, respectively. The pin is inserted into the inner wall of the pulley base. Using these components, when the directional lock of the caster wheel needs to be engaged, the lever moves the pin, the spring is stressed, and the pin inserts into the inner wall of the pulley base. Then, the lever is pushed, engaging the slot to achieve a limiting operation, thus completing the locking process.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting a pushing device and fixing it with a mounting base and connecting piece, the pushing device can be installed on the bicycle body as a whole. During the process of rotating the main rod by the rotating part, the connecting piece can cooperate with the T-shaped piece and the pressure spring to realize the switching between the pushing mode and the folding mode of the device, which is convenient for assisting the user to push the folded bicycle body to move without lifting it, thus improving the overall ease of use.

[0014] 2. In this utility model, by setting a locking part, when the device is in the pushing mode, the locking hook can be rotated by the lever two and locked into the groove on the surface of the connecting piece to achieve the locking operation and improve the stability effect during pushing.

[0015] 3. In this utility model, by setting a directional lock assembly, the pin can be inserted into the inner wall of the pulley base through the cooperation between the lever, the pin, the spring, and the slot, thereby positioning the pulley base and the pulley body. Attached Figure Description

[0016] Figure 1 This utility model provides a schematic diagram of the structure of a bicycle universal push wheel during pushing.

[0017] Figure 2 This utility model provides a schematic diagram of the folding structure of a bicycle universal push wheel;

[0018] Figure 3 This utility model provides a structural schematic diagram of a bicycle universal push wheel;

[0019] Figure 4 A cross-sectional structural diagram of a bicycle universal push wheel is provided for this utility model;

[0020] Figure 5 This invention presents a partial exploded structural diagram of a bicycle universal push wheel.

[0021] Legend:

[0022] 1. Bicycle frame; 2. Mounting base; 3. Main shaft; 4. Caster wheel; 41. Pulley base; 42. Pulley body; 43. Fixing screw one; 44. Fixing screw; 45. Bearing body; 5. Directional lock assembly; 51. Pin; 52. Rebound spring; 53. Lever one; 54. Slot; 6. Locking part; 61. Fixing screw two; 62. Lock hook; 63. Lever two; 7. Connecting piece; 71. Piece body; 72. Contact surface one; 73. Contact surface two; 74. Pressing part; 8. Rotating part; 81. Locking nut; 82. Locking screw; 83. Self-lubricating bearing; 9. T-shaped piece; 10. Pressure spring. Detailed Implementation

[0023] Please see Figures 1-5 This utility model provides a technical solution: a bicycle universal push wheel, including a bicycle body 1, and a push device is provided on the surface of the bicycle body 1.

[0024] Specifically, the pushing device includes a mounting base 2 and a main rod 3. The mounting base 2 is mounted on the surface of the bicycle body 1. The main rod 3 is located on one side of the mounting base 2. A rotating part 8 is provided on the inner wall of the main rod 3. A connecting piece 7 is mounted on the surface of the rotating part 8. The connecting piece 7 includes a piece body 71. The surface of the piece body 71 is provided with a first contact surface 72 and a second contact surface 73. The surface of the piece body 71 is also provided with a pressing part 74. The connecting piece 7 is fixedly connected to the mounting base 2 by screws. The main rod 3 is mounted on the lower part of the main rod 1. The main rod 3 is equipped with casters 4, and a T-shaped piece 9 is slidably connected to the inner wall of the main rod 3. A pressure spring 10 is provided between the T-shaped piece 9 and the inner wall of the main rod 3. A locking part 6 is provided on the surface of the main rod 3 to lock the connecting piece 7. A directional lock assembly 5 is provided on the inner wall of the main rod 3 to position the casters 4. The rotating part 8 includes a locking nut 81 and a locking screw 82 inserted into the inner wall of the main rod 3. The locking screw 82 is threadedly connected to the inner wall of the locking nut 81. A self-lubricating bearing 83 is provided on the locking nut 81.

[0025] In this implementation scheme: the connecting piece 7 can be connected to the mounting base 2 with screws. When pushing is required, the main rod 3 is pushed, the rotating part 8 rotates, and the pressing part 74 presses the T-shaped piece 9. The pressure spring 10 is under pressure. When the main rod 3 rotates to a certain position, the pressing part 74 loses its pressing force, and the pressure spring 10 drives the T-shaped piece 9 to return to its original position and contact the contact surface 72. At this time, the main rod 3, in conjunction with the caster wheel 4, can achieve the pushing operation. Figure 1 When folding, the main rod 3 is rotated, and the rotating part 8 rotates as well. The pressing part 74 presses against the T-shaped piece 9, and the pressure spring 10 is stressed. After the main rod 3 rotates to a certain position, the pressing part 74 loses its pressure, and the pressure spring 10 drives the T-shaped piece 9 to return to its original position and contact the second contact surface 73, thus realizing the folding operation. Figure 2 As shown, this allows for both push-to-operate and fold-to-store operations.

[0026] Specifically, the locking part 6 includes a fixing screw 61 mounted on the surface of the main rod 3, a locking hook 62 rotatably connected to the surface of the fixing screw 61, a slot for the locking hook 62 to be engaged on the surface of the connecting piece 7, and a lever 63 fixedly connected to the surface of the locking hook 62.

[0027] In this implementation plan: when the main rod 3 and the universal wheel 4 are in the pushing state, the locking hook 62 can be rotated by the lever 63, so that the locking hook 62 is engaged in the slot of the connecting piece 7 and the connecting piece 7 is locked.

[0028] Specifically, the caster wheel 4 includes a caster base 41, a fixing screw 44 is inserted into the inner wall of the caster base 41, the fixing screw 44 is threaded to the inner wall of the main rod 3, a bearing body 45 is provided between the fixing screw 44 and the inner wall of the caster base 41 and the main rod 3, a fixing screw 43 is provided on the inner wall of the caster base 41, and the caster body 42 is installed through the fixing screw 43.

[0029] Specifically, the steering lock assembly 5 includes a pin 51 inserted into the inner wall of the main rod 3. A lever 53 is fixedly connected to the surface of the pin 51. A slot 54 is opened on the surface of the main rod 3 for the lever 53 to be inserted. A spring 52 is sleeved on the surface of the pin 51. The two ends of the spring 52 are fixedly connected to the inner wall of the main rod 3 and the surface of the pin 51, respectively. The pin 51 is inserted into the inner wall of the pulley base 41.

[0030] In this implementation plan: when it is necessary to lock the directional position of the caster wheel 4, the lever 53 drives the pin 51 to move, the return spring 52 is stressed, and the pin 51 is inserted into the inner wall of the pulley base 41. Then, the lever 53 is pushed and the lever 53 is engaged in the slot 54 to achieve the limit operation and complete the locking.

[0031] Working principle: In use, first, the mounting base 2 can be installed on the surface of the bicycle body 1. Then, the connecting piece 7 is installed on the mounting base 2 using screws. When push-assisted movement is needed, the main rod 3 is pushed, and the self-lubricating bearing 83 in the rotating part 8 rotates. The pressing part 74 in the connecting piece 7 presses against the T-shaped piece 9, and the pressure spring 10 is stressed. When the main rod 3 rotates to a certain position, the pressing part 74 loses its pressure, and the pressure spring 10 drives the T-shaped piece 9 to reset and contact the first contact surface 72. At this time, the locking hook 62 can be rotated by the second lever 63, causing the locking hook 62 to engage in the slot of the connecting piece 7, thus locking the connecting piece 7. The main rod 3, in conjunction with the universal wheel 4, can then be pushed. Figure 1 This assists in pushing the device. When folding, first reset the locking hook 62, then rotate the main rod 3. The rotating part 8 rotates, and the pressing part 74 presses the T-shaped piece 9. The pressure spring 10 is stressed. When the main rod 3 rotates to a certain position, the pressing part 74 loses its pressing force, and the pressure spring 10 drives the T-shaped piece 9 to reset and contact the contact surface 73, thus achieving the folding operation. Figure 2 As shown, when the multi-directional wheel 4 is locked, the lever 53 drives the pin 51 to move, the return spring 52 is stressed, and the pin 51 is inserted into the inner wall of the pulley base 41. Then, the lever 53 is pushed and the lever 53 is engaged in the slot 54 to achieve the limit operation and complete the locking.

Claims

1. A bicycle universal push wheel, comprising a bicycle body (1), characterized in that: The surface of the bicycle body (1) is provided with a pushing device; The pushing device includes a mounting base (2) and a main rod (3). The mounting base (2) is mounted on the surface of the bicycle body (1). The main rod (3) is located on one side of the mounting base (2). The inner wall of the main rod (3) is provided with a rotating part (8). A connecting piece (7) is mounted on the surface of the rotating part (8). The connecting piece (7) is fixedly connected to the mounting base (2) by screws. A universal wheel (4) is mounted below the main rod (3). A T-shaped piece (9) is slidably connected to the inner wall of the main rod (3). A pressure spring (10) is provided between the T-shaped piece (9) and the inner wall of the main rod (3). A locking part (6) is provided on the surface of the main rod (3) to lock the connecting piece (7). A directional lock assembly (5) is provided on the inner wall of the main rod (3) to position the universal wheel (4).

2. The bicycle universal push wheel according to claim 1, characterized in that: The connecting piece (7) includes a piece body (71), the surface of the piece body (71) is provided with a contact surface one (72) and a contact surface two (73), and the surface of the piece body (71) is also provided with a pressing part (74).

3. The bicycle universal push wheel according to claim 1, characterized in that: The rotating part (8) includes a locking nut (81) and a locking screw (82) inserted into the inner wall of the main rod (3). The locking screw (82) is threadedly connected to the inner wall of the locking nut (81). A self-lubricating bearing (83) is provided on the locking nut (81).

4. The bicycle universal push wheel according to claim 1, characterized in that: The locking part (6) includes a fixing screw two (61) installed on the surface of the main rod (3), and a locking hook (62) is rotatably connected to the surface of the fixing screw two (61). The surface of the connecting piece (7) is provided with a slot for the locking hook (62) to be inserted, and a lever two (63) is fixedly connected to the surface of the locking hook (62).

5. The bicycle universal push wheel according to claim 1, characterized in that: The universal wheel (4) includes a pulley base (41), a fixing screw (44) is inserted into the inner wall of the pulley base (41), the fixing screw (44) is threaded to the inner wall of the main rod (3), a bearing body (45) is provided between the fixing screw (44) and the inner wall of the pulley base (41) and the main rod (3), a fixing screw (43) is provided on the inner wall of the pulley base (41), and a pulley body (42) is installed through the fixing screw (43).

6. The bicycle universal push wheel according to claim 5, characterized in that: The direction lock assembly (5) includes a pin (51) inserted into the inner wall of the main rod (3). A lever (53) is fixedly connected to the surface of the pin (51). A slot (54) is opened on the surface of the main rod (3) for the lever (53) to be inserted. A spring (52) is sleeved on the surface of the pin (51). The two ends of the spring (52) are fixedly connected to the inner wall of the main rod (3) and the surface of the pin (51) respectively. The pin (51) is inserted into the inner wall of the pulley base (41).

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