A child's bicycle having a folding auxiliary wheel arrangement

Abstract

The utility model discloses a kind of children's bicycles with folding auxiliary wheel structure, it is related to children's bicycle technical field, including bicycle main body, the both sides of bicycle main body are fixedly installed with fixed frame, the inner wall of fixed frame is fixedly installed with assembly stand, the inside of assembly stand is provided with clamping groove one and clamping groove two, and one side is provided with two installation grooves, two installation grooves are slidably provided with limit shaft, the both ends of limit shaft are fixedly installed with fixed rod, the outer wall of fixed rod is provided with two insertion slots, and outer wall is provided with connecting assembly, connecting assembly includes connecting frame and connecting rod, connecting frame is fixedly installed with auxiliary wheel by connecting rod, and can be moved and rotated in limit shaft, by the intercoordination between U-shaped frame, positioning rod, plug-in rod, limit shaft, installation groove and fixed rod, positioning rod and installation groove are positioned to U-shaped frame and limit shaft respectively, effectively reduce installation operation time, improve installation efficiency, and then improve the maintenance efficiency to limit shaft.

Description

Technical Field

[0001] This utility model relates to the field of children's bicycle technology, specifically to a children's bicycle with a folding auxiliary wheel structure. Background Technology

[0002] Children's bicycles are commonly used for transportation and recreation. To ensure the safety of young children while riding, training wheels are usually installed on both sides of the bicycle. With the development of bicycles, in order to make it easier for children of different ages to ride comfortably, most children's bicycles on the market are equipped with different types of folding training wheels.

[0003] However, existing children's bicycles with folding auxiliary wheels do not have a positioning structure. This results in more time spent installing the folding components, affecting installation and disassembly efficiency, which in turn affects the bicycle's later maintenance efficiency. In addition, the structure has poor linkage, and multiple structures cannot be installed or disassembled at the same time. Operators need to repeatedly install and remove nuts or bolts to complete the installation and disassembly work, which further affects installation, disassembly and maintenance efficiency, resulting in poor applicability. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a children's bicycle with a folding auxiliary wheel structure, thereby overcoming the aforementioned technical problems existing in related technologies.

[0005] A children's bicycle with a folding auxiliary wheel structure includes a bicycle body. Fixed frames are fixedly mounted on both sides of the bicycle body. An assembly frame is fixedly mounted on the inner wall of each fixed frame. The assembly frame has two slots inside and two mounting slots on one side. Limiting shafts are slidably arranged within the two mounting slots. Fixed rods are fixedly mounted at both ends of each limiting shaft. Two slots are formed on the outer wall of each fixed rod, and a connecting assembly is provided on the outer wall. The connecting assembly includes a connecting frame and a connecting rod. An auxiliary wheel is fixedly mounted on the connecting frame via the connecting rod. The auxiliary wheel is capable of moving and rotating on the limiting shaft. After rotation, the connecting frame can be inserted into the first or second slot. At the same time, the auxiliary wheel can switch between vertical and horizontal ground states. A positioning rod is fixedly installed at the bottom of the assembly frame, and a clamping assembly is provided. A screw is fixedly installed at the bottom of the positioning rod, and a fastening nut is threaded onto the outer wall of the screw. The clamping assembly includes a U-shaped frame and two insertion rods. The U-shaped frame drives the two insertion rods to move vertically upward, and limits the limiting shaft and the two fixing rods after the two insertion rods are inserted into the slot.

[0006] Preferably, the two slots are interconnected and have the same size and structure, and the insert can slide into the two slots.

[0007] Preferably, both of the insertion rods are fixedly connected to the U-shaped frame, and the outer walls of the two fixing rods respectively fit into the grooves opened on both sides of the U-shaped frame.

[0008] Preferably, the U-shaped frame is slidably sleeved on the positioning rod, and the fastening nut abuts against the bottom of the U-shaped frame.

[0009] Preferably, a baffle is fixedly installed on the inner wall of the assembly frame.

[0010] Preferably, a sliding groove is provided on one side of the connecting frame, and the connecting frame is slidably sleeved on the limiting shaft through the sliding groove and slidably engaged with the limiting shaft. The connecting frame can slidably engage with the first slot and the second slot. The connecting rod is fixedly connected to the connecting frame. When the connecting frame is inserted into the first slot, the auxiliary wheel is in contact with the ground and perpendicular to it. When the connecting frame is inserted into the second slot, the auxiliary wheel is away from the ground and parallel to the ground.

[0011] Preferably, the inner diameter of the screw is smaller than that of the positioning rod, and the sliding stroke of the U-shaped frame is limited to the positioning rod segment and does not contact the screw.

[0012] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0013] 1. This utility model provides a children's bicycle with a folding auxiliary wheel structure. Through the cooperation between the U-shaped frame, positioning rod, insertion rod, limiting shaft, mounting groove and fixing rod, the positioning rod and mounting groove respectively position the U-shaped frame and the limiting shaft, effectively reducing the installation operation time, improving the installation efficiency, and thus improving the maintenance efficiency of the limiting shaft.

[0014] 2. This utility model provides a children's bicycle with a folding auxiliary wheel structure. Through the cooperation between the U-shaped frame, the insert rod, the limiting shaft and the two fixed rods, the U-shaped frame drives the two fixed rods to insert into the two fixed rods to lock the limiting shaft. Then, by installing the fastening nut, the two ends of the limiting shaft can be locked, which further improves the installation and disassembly efficiency and maintenance efficiency, and improves the applicability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the fixing frame in this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the assembly frame in this utility model;

[0018] Figure 4This is a cross-sectional structural diagram of the clamping component in this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the connecting component in this utility model.

[0020] In the picture:

[0021] 1. Bicycle body; 2. Fixing frame; 3. Assembly frame; 301. Mounting slot; 302. Slot 1; 303. Slot 2; 304. Baffle; 4. Clamping assembly; 401. U-shaped frame; 402. Insert rod; 403. Positioning rod; 404. Screw; 405. Fastening nut; 5. Limiting shaft; 501. Fixing rod; 502. Slot; 6. Connecting assembly; 601. Connecting frame; 602. Sliding groove; 603. Connecting rod; 7. Auxiliary wheel. Detailed Implementation

[0022] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0023] Example 1

[0024] like Figure 1-5 As shown, this utility model provides a children's bicycle with a folding auxiliary wheel structure, including a bicycle body 1. Fixing frames 2 are fixedly installed on both sides of the bicycle body 1. An assembly frame 3 is fixedly installed on the inner wall of the fixing frame 2. The assembly frame 3 has a slot 1 302 and a slot 2 303 inside, and two mounting slots 301 on one side. A limiting shaft 5 is slidably arranged in the two mounting slots 301. A fixing rod 501 is fixedly installed at both ends of the limiting shaft 5. Two slots 502 are opened on the outer wall of the fixing rod 501, and a connecting component 6 is provided on the outer wall. A positioning rod 403 is fixedly installed at the bottom of the assembly frame 3, and a clamping component 4 is provided. A screw 404 is fixedly installed at the bottom of the positioning rod 403, and a fastening nut 405 is threaded onto the outer wall of the screw 404. The fastening assembly 4 includes a U-shaped frame 401 and two insert rods 402. The U-shaped frame 401 drives the two insert rods 402 to move vertically upward and limits the limiting shaft 5 and the two fixing rods 501 after the two insert rods 402 are inserted into the slots 502. The two slots 502 are interconnected and have the same size and structure. The insert rods 402 can slide with the two slots 502. Both insert rods 402 are fixedly connected to the U-shaped frame 401. The outer walls of the two fixing rods 501 are respectively fitted with the grooves opened on both sides of the U-shaped frame 401. The U-shaped frame 401 is slidably sleeved on the positioning rod 403. The fastening nut 405 abuts against the bottom of the U-shaped frame 401. The inner diameter of the screw 404 is smaller than that of the positioning rod 403. The sliding stroke of the U-shaped frame 401 is limited to the section of the positioning rod 403 and does not contact the screw 404.

[0025] In this embodiment, when the limiting shaft 5 becomes rusty or old after long-term use and requires maintenance, the operator rotates the fastening nut 405, causing the fastening nut 405 to be removed from the screw 404. At this time, the U-shaped frame 401 is no longer limited and automatically slides vertically downward on the positioning rod 403. When the U-shaped frame 401 moves, it drives the two insertion rods 402 to move, so that the two insertion rods 402 are no longer locked to the two fixing rods 501. Then, by moving the limiting shaft 5 horizontally, the limiting shaft 5 can be removed from the two mounting slots 301. The difficulty of installing and removing the limiting shaft is effectively reduced by positioning and linkage, thereby improving the installation and removal efficiency and maintenance efficiency, and it has strong applicability.

[0026] Example 2

[0027] Based on Example 1, such as Figure 3 and Figure 5 As shown, in one embodiment, the connecting assembly 6 includes a connecting frame 601 and a connecting rod 603. The connecting frame 601 is fixedly mounted with an auxiliary wheel 7 via the connecting rod 603, and can move and rotate on the limiting shaft 5. After rotation, the connecting frame 601 can be inserted into slot one 302 or slot two 303. At the same time, the auxiliary wheel 7 can switch between vertical and horizontal ground states. A baffle 304 is fixedly installed on the inner wall of the assembly frame 3. A sliding groove 602 is provided on one side of the connecting frame 601. The connecting frame 601 is slidably sleeved on the limiting shaft 5 via the sliding groove 602 and slides with the limiting shaft 5. The connecting frame 601 can slide with slot one 302 and slot two 303. The connecting rod 603 is fixedly connected to the connecting frame 601. When the connecting frame 601 is inserted into slot one 302, the auxiliary wheel 7 is in contact with the ground and is perpendicular. When the connecting frame 601 is inserted into slot two 303, the auxiliary wheel 7 is away from the ground and is parallel to the ground.

[0028] In this embodiment, when the auxiliary wheel 7 needs to be folded, the worker holds the connecting frame 601 or the auxiliary wheel 7 and pulls the connecting frame 601 to move it out of the slot 302. At this time, the connecting frame 601 slides under the limiting action of the sliding groove 602 and the limiting shaft 5. Then, the connecting frame 601 is rotated so that one end of the connecting frame 601 is aligned with the slot 303 and moves, so that the sliding groove 602 cooperates with the limiting shaft 5, thereby inserting the connecting frame 601 into the slot 303. This changes the auxiliary wheel 7 from a vertical state to a horizontal state and locks it in place. At the same time, it is also possible for a person to stand on it. By fitting the connecting frame 601 onto the limiting shaft 5, the connecting frame 601 can also be disassembled when the limiting shaft 5 is installed or removed, further improving the linkage and maintenance efficiency.

[0029] Both the connecting component 6 and the auxiliary wheel 7 are existing technologies and will not be explained here.

[0030] The working principle of this children's bicycle with a folding auxiliary wheel structure will be explained in detail below:

[0031] When the auxiliary wheel 7 needs to be folded, the worker holds the connecting frame 601 or the auxiliary wheel 7 and pulls the connecting frame 601 to move it out of the slot 302. At this time, the connecting frame 601 slides under the limiting action of the sliding groove 602 and the limiting shaft 5. Then, the connecting frame 601 is rotated so that one end of the connecting frame 601 is aligned with the slot 303 and moved, so that the sliding groove 602 cooperates with the limiting shaft 5, thereby inserting the connecting frame 601 into the slot 303, so that the auxiliary wheel 7 changes from a vertical state to a horizontal state and is locked, and a person can stand on it at the same time.

[0032] When the limiting shaft 5 becomes rusty or old after long-term use and needs maintenance, the operator rotates the fastening nut 405 to remove it from the screw 404. At this time, the U-shaped frame 401 is no longer limited and automatically slides vertically downward on the positioning rod 403. When the U-shaped frame 401 moves, it drives the two insertion rods 402 to move, so that the two insertion rods 402 are no longer locked to the two fixing rods 501. Then, by moving the limiting shaft 5 horizontally, the limiting shaft 5 can be removed from the two mounting slots 301.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A children's bicycle with a folding auxiliary wheel structure, comprising a bicycle body (1), characterized in that: The bicycle body (1) is fixedly mounted with a mounting bracket (2) on both sides. An assembly bracket (3) is fixedly mounted on the inner wall of the mounting bracket (2). The assembly bracket (3) has a slot 1 (302) and a slot 2 (303) inside, and two mounting slots (301) on one side. A limiting shaft (5) is slidably arranged in the two mounting slots (301). A fixing rod (501) is fixedly mounted on both ends of the limiting shaft (5). Two slots (502) are opened on the outer wall of the fixing rod (501), and a connecting component (6) is provided on the outer wall. The connecting component (6) includes a connecting frame (601) and a connecting rod (603). An auxiliary wheel (7) is fixedly mounted on the connecting frame (601) through the connecting rod (603), and can move and rotate on the limiting shaft (5). When the connecting frame (601) rotates, it can be inserted into the first slot (302) or the second slot (303). At the same time, the auxiliary wheel (7) also switches between vertical and horizontal ground states. The bottom of the assembly frame (3) is fixedly installed with a positioning rod (403) and is provided with a clamping assembly (4). The bottom of the positioning rod (403) is fixedly installed with a screw (404). The outer wall of the screw (404) is threaded with a fastening nut (405). The clamping assembly (4) includes a U-shaped frame (401) and two insertion rods (402). The U-shaped frame (401) drives the two insertion rods (402) to move vertically upward and limits the limiting shaft (5) and the two fixing rods (501) after the two insertion rods (402) are inserted into the slot (502).

2. A children's bicycle with a folding auxiliary wheel structure according to claim 1, characterized in that: The two slots (502) are interconnected and have the same size and structure, and the insert (402) can slide and engage with the two slots (502).

3. A children's bicycle with a folding auxiliary wheel structure according to claim 1, characterized in that: Both of the insertion rods (402) are fixedly connected to the U-shaped frame (401), and the outer walls of the two fixing rods (501) are respectively fitted with the grooves opened on both sides of the U-shaped frame (401).

4. A children's bicycle with a folding auxiliary wheel structure according to claim 2, characterized in that: The U-shaped frame (401) is slidably sleeved on the positioning rod (403), and the fastening nut (405) abuts against the bottom of the U-shaped frame (401).

5. A children's bicycle with a folding auxiliary wheel structure according to claim 1, characterized in that: A baffle (304) is fixedly installed on the inner wall of the assembly frame (3).

6. A children's bicycle with a folding auxiliary wheel structure according to claim 1, characterized in that: The connecting frame (601) has a sliding groove (602) on one side. The connecting frame (601) is slidably sleeved on the limiting shaft (5) through the sliding groove (602) and slidably engaged with the limiting shaft (5). The connecting frame (601) can slidably engage with the first slot (302) and the second slot (303). The connecting rod (603) is fixedly connected to the connecting frame (601). When the connecting frame (601) is inserted into the first slot (302), the auxiliary wheel (7) is in contact with the ground and perpendicular. When the connecting frame (601) is inserted into the second slot (303), the auxiliary wheel (7) is away from the ground and parallel to the ground.

7. A children's bicycle with a folding auxiliary wheel structure according to claim 1, characterized in that: The inner diameter of the screw (404) is smaller than that of the positioning rod (403), and the sliding stroke of the U-shaped frame (401) is limited to the section of the positioning rod (403) and does not contact the screw (404).

Images