Anti-falling bicycle trailer connecting structure

Abstract

The utility model discloses an anti-falling bicycle trailer connecting structure which comprises a first clamping plate and a second clamping plate, and the second clamping plate is installed at the left end of the first clamping plate. The bolt penetrates through the interior of the first clamping plate, a supporting frame is connected to the right end of the first clamping plate, a first connecting plate is connected to the right end of the supporting frame, a damping block is installed on the upper side of the right end of the first connecting plate, a second connecting plate is installed at the upper end of the damping block, and a positioning pipe is connected to the right end of the second connecting plate; a movable pipe is arranged in the positioning pipe in a sleeved mode, a plurality of positioning grooves are formed in the upper surface of the movable pipe, and a limiting block is installed at the upper end of the positioning pipe. The anti-falling bicycle trailer connecting structure is simple and flexible, convenient to disassemble, assemble, carry and transport, capable of preventing falling and facilitating damping and steering, the distance between a trailer and a bicycle is conveniently increased, and touch is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle trailer connection structures, in particular to a bicycle trailer connection structure which can prevent falling off. Background Art

[0002] The bicycle trailer connection structure is an important component that connects the tractor and the trailer. It has the function of transmitting traction and ensuring the stability and safety of vehicle driving. Its structure is generally connected to the bicycle seat pipe. During use, attention should be paid to regular inspection and maintenance, and relevant safety measures should be strengthened to ensure the normal use and safety and reliability of the connection structure.

[0003] Compared with the prior art solutions, the following defects exist: the bicycle trailer connection structure that prevents it from falling off is complicated, inconvenient to disassemble, install and carry, inconvenient to transport, easy to detach, unable to absorb shock and turn, inconvenient to increase the distance between the trailer and the bicycle, and easy to touch. Therefore, the utility model provides a bicycle trailer connection structure that prevents it from falling off to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide a bicycle trailer connection structure that prevents falling off, so as to solve the problems proposed in the above background technology that the bicycle trailer connection structure that prevents falling off is complicated, inconvenient to disassemble, install and carry, inconvenient to transport, easy to fall off, unable to absorb shock and turn, inconvenient to increase the distance between the trailer and the bicycle, and easy to touch.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bicycle trailer connection structure for preventing falling off, comprising a first clamping plate and a second clamping plate, wherein the second clamping plate is installed at the left end of the first clamping plate;

[0006] Also includes:

[0007] A bolt is inserted into the first clamping plate, the right end of the first clamping plate is connected to the support frame, the right end of the support frame is connected to the first connecting plate, a shock absorbing block is installed on the upper side of the right end of the first connecting plate, the upper end of the shock absorbing block is installed with the second connecting plate, the right end of the second connecting plate is connected with a positioning tube, and a movable tube is sleeved inside the positioning tube, a plurality of positioning grooves are opened on the upper surface of the movable tube, and a limiting block is installed on the upper end of the positioning tube;

[0008] A third connecting plate is connected to the right end of the movable tube, a positioning block is connected to the right end of the third connecting plate, and a right clamping arm is installed on the upper end of the positioning block, a left clamping arm is arranged at the left end of the right clamping arm, a threaded rod is fixed inside the left clamping arm, and a movable rod is installed at the right end of the threaded rod.

[0009] Preferably, a semi-arc groove is formed inside the first clamping plate, and the first clamping plate and the second clamping plate are disposed symmetrically with respect to the bicycle seat tube.

[0010] Preferably, the second connecting plate forms a rotating structure at the upper end of the shock absorbing block, and the right end of the second connecting plate is connected to the positioning tube in a threaded manner.

[0011] Preferably, the positioning tube is sleeved on the outer end of the movable tube, and the movable tube forms a sliding structure inside the positioning tube.

[0012] Preferably, a plurality of positioning grooves are formed on the upper surface of the movable tube at equal intervals, and the positioning grooves match the size of the lower end of the limiting block, and the lower end of the limiting block is connected to the positioning tube in a threaded manner.

[0013] Preferably, the left clamp arm forms a rotating structure at the left end of the right clamp arm, and the threaded rod is connected inside the right clamp arm in a threaded manner.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the bicycle trailer connection structure that prevents falling off is simple and flexible, easy to disassemble and install, easy to carry, convenient to transport, prevents falling off, is convenient for shock absorption and steering, and is convenient for increasing the distance between the trailer and the bicycle to avoid contact;

[0015] 1. A second clamping plate, a second connecting plate and a third connecting plate are provided. Bolts are screwed into and tightened from the threaded holes at the front and rear ends of the device to fix the bicycle. The device has a simple and flexible structure, is easy to disassemble and install, and is convenient to carry and transport.

[0016] 2. A first connecting plate, a shock absorbing block and a second connecting plate are provided. The shock absorbing block is made of polyurethane material so that the structure has a shock absorbing function, and the second connecting plate can be rotated on the upper end of the shock absorbing block, so that the trailer is easy to turn and easy to control;

[0017] 3. A positioning tube, a movable tube and a limit block are provided. When the connected trailer is too large and easily touches the rear wheel of the bicycle, the limit block is hung upward and the movable tube is pulled outward to increase the distance between the trailer and the bicycle for easy towing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the first clamping plate and the second clamping plate of the utility model;

[0020] Figure 3 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 4It is a schematic diagram of the connection structure of the right clamp arm and the left clamp arm of the utility model.

[0022] In the figure: 1. first clamping plate; 2. second clamping plate; 3. bolt; 4. support frame; 5. first connecting plate; 6. shock absorbing block; 7. second connecting plate; 8. positioning tube; 9. movable tube; 10. positioning groove; 11. limit block; 12. third connecting plate; 13. positioning block; 14. right clamping arm; 15. left clamping arm; 16. threaded rod; 17. movable rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a bicycle trailer connection structure that prevents falling off, including a first clamping plate 1, a second clamping plate 2, a bolt 3, a support frame 4, a first connecting plate 5, a shock absorbing block 6, a second connecting plate 7, a positioning tube 8, a movable tube 9, a positioning groove 10, a limit block 11, a third connecting plate 12, a positioning block 13, a right clamping arm 14, a left clamping arm 15, a threaded rod 16, and a movable rod 17.

[0025] The bolt 3 runs through the inside of the first clamping plate 1, the right end of the first clamping plate 1 is connected to the support frame 4, and the right end of the support frame 4 is connected to the first connecting plate 5, and the upper side of the right end of the first connecting plate 5 is installed with a shock absorbing block 6, the upper end of the shock absorbing block 6 is installed with a second connecting plate 7, and the right end of the second connecting plate 7 is connected with a positioning tube 8, and the inside of the positioning tube 8 is sleeved with a movable tube 9, and the upper surface of the movable tube 9 is provided with a plurality of positioning grooves 10, and the upper end of the positioning tube 8 is installed with a limiting block 11;

[0026] The third connecting plate 12 is connected to the right end of the movable tube 9, the right end of the third connecting plate 12 is connected to a positioning block 13, and a right clamping arm 14 is installed on the upper end of the positioning block 13, a left clamping arm 15 is provided at the left end of the right clamping arm 14, and a threaded rod 16 is fixed inside the left clamping arm 15, and a movable rod 17 is installed at the right end of the threaded rod 16.

[0027] like Figure 1 , Figure 2 and Figure 3As shown, a semi-arc groove is provided inside the first clamping plate 1, and the first clamping plate 1 and the second clamping plate 2 are symmetrically arranged about the bicycle seat tube, the second connecting plate 7 forms a rotating structure at the upper end of the shock-absorbing block 6, and the right end of the second connecting plate 7 is connected to the positioning tube 8 by a threaded manner, the positioning tube 8 is sleeved on the outer end of the movable tube 9, and the movable tube 9 forms a sliding structure inside the positioning tube 8, a plurality of positioning grooves 10 are provided on the upper surface of the movable tube 9 at equal intervals, and the positioning grooves 10 match the lower end size of the limit block 11, and the lower end of the limit block 11 is connected to the positioning tube 8 by a threaded manner. When using the bicycle trailer connection structure, firstly, the support frame 4 and the first connecting plate 5 are rotated and tightened, and the second connecting plate 7 and the positioning tube 8 are screwed. The thread is tightened, the right end of the movable tube 9 is tightened with the third connecting plate 12, and the first clamping plate 1 and the second clamping plate 2 are ringed on the left and right ends of the bicycle seat tube, and then the bolts 3 are screwed in and tightened from the threaded openings at the front and rear ends to fix the bicycle. The device has a simple and flexible structure, is easy to disassemble and install, and is easy to carry and transport. When the connected trailer is too large and easily touches the rear wheel of the bicycle, the upper limit block 11 is suspended, and the movable tube 9 is pulled outward to increase the distance between the trailer and the bicycle for easy towing, and then the limit block 11 is rotated downward to be engaged and fixed with the positioning groove 10. The shock-absorbing block 6 is made of polyurethane material to make the structure have a shock-absorbing function, and the second connecting plate 7 can be rotated at the upper end of the shock-absorbing block 6, so that the trailer is easy to turn and easy to control.

[0028] like Figure 1 and Figure 4 As shown, the left clamp arm 15 forms a rotating structure at the left end of the right clamp arm 14, and the threaded rod 16 is connected to the inside of the right clamp arm 14 in a threaded manner. The trailer frame is placed between the right clamp arm 14 and the left clamp arm 15, and then the movable rod 17 is rotated to make the threaded rod 16 screw on the right clamp arm 14 and drive the left clamp arm 15 to approach the right clamp arm 14. Then the serrated end of the structure will clamp the trailer frame to prevent it from falling off. After the installation is completed, you can ride directly to make the bicycle drive the trailer to move.

[0029] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bicycle trailer connection structure for preventing falling off, comprising a first clamping plate (1) and a second clamping plate (2), wherein the second clamping plate (2) is mounted on the left end of the first clamping plate (1); It is characterized in that Also includes: A bolt (3) is inserted into the interior of the first clamping plate (1); the right end of the first clamping plate (1) is connected to a support frame (4), and the right end of the support frame (4) is connected to a first connecting plate (5); a shock absorbing block (6) is installed on the upper side of the right end of the first connecting plate (5); a second connecting plate (7) is installed on the upper end of the shock absorbing block (6), and a positioning tube (8) is connected to the right end of the second connecting plate (7); a movable tube (9) is sleeved inside the positioning tube (8), and a plurality of positioning grooves (10) are provided on the upper surface of the movable tube (9); and a limiting block (11) is installed on the upper end of the positioning tube (8); A third connecting plate (12) is connected to the right end of the movable tube (9); the right end of the third connecting plate (12) is connected to a positioning block (13), and a right clamping arm (14) is installed on the upper end of the positioning block (13); a left clamping arm (15) is provided at the left end of the right clamping arm (14), and a threaded rod (16) is fixed inside the left clamping arm (15), and a movable rod (17) is installed at the right end of the threaded rod (16).

2. The bicycle trailer connection structure for preventing falling off according to claim 1, characterized in that: A semi-arc groove is provided inside the first clamping plate (1), and the first clamping plate (1) and the second clamping plate (2) are arranged symmetrically with respect to the bicycle seat tube.

3. The bicycle trailer connection structure for preventing falling off according to claim 1, characterized in that: The second connecting plate (7) forms a rotating structure at the upper end of the shock absorbing block (6), and the right end of the second connecting plate (7) is connected to the positioning tube (8) in a threaded manner.

4. The bicycle trailer connection structure for preventing falling off according to claim 1, characterized in that: The positioning tube (8) is sleeved on the outer end of the movable tube (9), and the movable tube (9) forms a sliding structure inside the positioning tube (8).

5. The bicycle trailer connection structure for preventing falling off according to claim 1, characterized in that: The upper surface of the movable tube (9) is provided with a plurality of positioning grooves (10) at equal intervals, and the positioning grooves (10) match the lower end size of the limiting block (11), and the lower end of the limiting block (11) is connected to the positioning tube (8) in a threaded manner.

6. The bicycle trailer connection structure for preventing falling off according to claim 1, characterized in that: The left clamp arm (15) forms a rotating structure at the left end of the right clamp arm (14), and the threaded rod (16) is connected to the inside of the right clamp arm (14) in a threaded manner.

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