Bicycle trailer convenient to connect

Abstract

The utility model discloses a bicycle trailer convenient to connect. The bicycle trailer comprises a trailer body used for installation, wheels fixedly installed at the lower end of the trailer body and a fixing block installed on the left side of the trailer body. The device further comprises a first bolt, the first bolt is connected to the left side of the fixing block, a first nut is installed at the front end of the first bolt, a connecting block is installed in the middle of the first bolt, a hole groove is formed in the connecting block, a protective shell is connected into the hole groove, and a clamping groove is formed in the outer end of the protective shell. A clamping block is arranged in the clamping groove, a spring is arranged at the outer end of the clamping block, a bidirectional threaded rod is installed in the left side of the protective shell, and a motor is arranged at the upper end of the bidirectional threaded rod. According to the bicycle trailer convenient to connect, the connecting device and the trailer can be fixedly connected conveniently, the clamping direction can be adjusted conveniently according to different vehicle types, and the clamping distance can be adjusted conveniently according to the size of an object.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle trailers, in particular to a bicycle trailer that is easy to connect. Background Art

[0002] Bicycles, also known as bicycles or bikes, are usually two-wheeled small land vehicles. People ride on the bicycles and use pedals as power. It is a green and environmentally friendly means of transportation. Currently, bicycles are not only used as a means of transportation, but also an important tool for leisure, entertainment and sports. Bicycle trailers with trailers behind the bicycles have become very popular in recent years, and bicycle trailers can be used to carry people or pets.

[0003] The announcement number CN 216636749 U provides a bicycle trailer that is easy to connect, including a bucket, an arc rod is fixedly connected to one side of the upper end face of the bucket, a No. 1 connecting piece is fixedly connected to one side of the arc rod by bolts, a connecting seat is rotatably connected to the lower end face of the No. 1 connecting piece, a latch is hinged on one side of the connecting seat, a No. 2 connecting piece is sleeved on one side of the latch, a slot is fixedly provided on one side of the No. 2 connecting piece, a spring slot is fixedly provided on the upper end of the slot, and a clamping block is slidably connected in the spring slot. In the bicycle trailer that is easy to connect proposed by the utility model, the bicycle trailer has a simple structure, and auxiliary wheels are provided to assist in supporting the bucket structure, so that the bucket can be stably parked on the ground and has stable operation. The latch can be quickly connected and disassembled by clamping the slot, thereby facilitating quick installation and disassembly of the trailer, and it is convenient and trouble-free to use, and it is worth promoting vigorously.

[0004] The above-mentioned prior art solutions have the following defects: it is not convenient to fix the connection device and the trailer, it is not convenient to adjust the clamping direction according to different vehicle models, and it is not convenient to adjust the clamping distance according to the size of the object. Therefore, the utility model provides a bicycle trailer that is easy to connect to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a bicycle trailer that is easy to connect, so as to solve the problems in the above-mentioned background technology that it is inconvenient to fix the connection device and the trailer, it is inconvenient to adjust the clamping direction according to different vehicle models, and it is inconvenient to adjust the clamping distance according to the size of the object.

[0006] To achieve the above object, the utility model provides the following technical solution: a bicycle trailer that is easy to connect, comprising: a trailer body for installation, a wheel fixedly installed at the lower end of the trailer body and a fixing block installed on the left side of the trailer body;

[0007] The invention also includes: a first bolt, a first bolt is connected to the left side of the fixing block, and a first nut is installed at the front end of the first bolt, a connecting block is installed at the middle part of the first bolt, and a hole groove is arranged inside the connecting block, and a protective shell is connected inside the hole groove, a clamping slot is arranged at the outer end of the protective shell, and a clamping block is arranged inside the clamping slot, and a spring is arranged at the outer end of the clamping block, a two-way threaded rod is installed inside the left side of the protective shell, and a motor is arranged at the upper end of the two-way threaded rod, a first clamping arm and a second clamping arm are arranged at the outer end of the two-way threaded rod, and the second clamping arm is located at the lower side of the first clamping arm, a second bolt is arranged at the left end of the first clamping arm, and a third bolt is arranged at the lower end of the second bolt, a second nut and a third nut are arranged at the outer ends of the second bolt and the third bolt, and the third nut is located at the lower side of the second nut.

[0008] Preferably, the connecting block forms a rotating structure on the outer side of the first bolt, and the clamping block and the spring are arranged at equal angles on the inner wall of the connecting block.

[0009] Preferably, the interior of the slot is connected to the spring in a snap-fit ​​manner, and the spring forms a sliding structure on the inner wall of the connecting block.

[0010] Preferably, the outer side of the bidirectional threaded rod is connected to the first clamp arm by means of threads, and the outer side of the bidirectional threaded rod is connected to the second clamp arm by means of threads.

[0011] Preferably, the cross-sections of the first clamp arm and the second clamp arm are arc-shaped, and a third bolt is installed at the left end of the second clamp arm.

[0012] Preferably, the lower end of the second bolt is connected to the third bolt in a threaded manner, and the second nut is connected to the outer side of the second bolt in a threaded manner.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the bicycle trailer that is easy to connect is convenient for fixing the connection device and the trailer, is convenient for adjusting the clamping orientation according to different vehicle models, and is convenient for adjusting the clamping distance according to the size of the object;

[0014] 1. A fixing block, a first bolt and a connecting block are provided. The first bolt is first inserted into the left side of the fixing block, and the first bolt is installed on the outside of the connecting block during installation. When the first bolt is completely installed on the left side of the fixing block, the first nut is installed at the front end of the first bolt, so that the connecting device is fixedly connected to the trailer, which is convenient for fixing the connecting device to the trailer;

[0015] 2. A protective shell, a card slot and a spring are provided. Due to the different structures of bicycle parts and the different installation positions of the connecting device, the clamping angle can be adjusted according to different positions. The spring is pulled to the upper and lower ends to squeeze the card block so that the card block is out of the card slot. The protective shell is rotated to adjust the position. After rotating 90 degrees, the transverse spring of the connecting block rebounds through the card block and engages with the inside of the card slot, which is convenient for adjusting the clamping position according to different models.

[0016] 3. A bidirectional threaded rod, a first clamping arm and a second bolt are provided. The position to be clamped is placed in the middle of the first clamping arm and the second clamping arm. The motor is started to drive the bidirectional threaded rod to rotate, and the bidirectional threaded rod drives the first clamping arm and the second clamping arm to move toward the middle of the protective shell when rotating. After the first clamping arm and the second clamping arm clamp the object, the positions of the second bolt and the third bolt on the left side of the first clamping arm and the second clamping arm are adjusted respectively, and then the second bolt and the third bolt are connected together, so that the object is clamped and fixed, and the clamping distance can be adjusted according to the size of the object. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0019] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 4 This is a schematic diagram of the connecting block and spring structure of the utility model.

[0021] In the figure: 1. trailer body; 2. wheel; 3. fixing block; 4. first bolt; 5. first nut; 6. connecting block; 7. hole groove; 8. protective shell; 9. slot; 10. clamping block; 11. spring; 12. bidirectional threaded rod; 13. motor; 14. first clamping arm; 15. second clamping arm; 16. second bolt; 17. third bolt; 18. second nut; 19. third nut. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-4The utility model provides a technical solution: a bicycle trailer that is easy to connect, including a trailer body 1, a wheel 2, a fixing block 3, a first bolt 4, a first nut 5, a connecting block 6, a hole groove 7, a protective shell 8, a slot 9, a clamping block 10, a spring 11, a bidirectional threaded rod 12, a motor 13, a first clamping arm 14, a second clamping arm 15, a second bolt 16, a third bolt 17, a second nut 18 and a third nut 19.

[0024] A first bolt 4 is connected to the left side of the fixing block 3, and a first nut 5 is installed at the front end of the first bolt 4, a connecting block 6 is installed in the middle part of the first bolt 4, and a hole groove 7 is arranged inside the connecting block 6, and a protective shell 8 is connected inside the hole groove 7, a card slot 9 is arranged at the outer end of the protective shell 8, and a card block 10 is arranged inside the card slot 9, and a spring 11 is arranged at the outer end of the card block 10, a two-way threaded rod 12 is installed inside the left side of the protective shell 8, and a motor 13 is arranged at the upper end of the two-way threaded rod 12, a first clamping arm 14 and a second clamping arm 15 are arranged at the outer end of the two-way threaded rod 12, and the second clamping arm 15 is located at the lower side of the first clamping arm 14, a second bolt 16 is arranged at the left end of the first clamping arm 14, and a third bolt 17 is arranged at the lower end of the second bolt 16, a second nut 18 and a third nut 19 are arranged at the outer ends of the second bolt 16 and the third bolt 17, and the third nut 19 is located at the lower side of the second nut 18.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, the connecting block 6 forms a rotating structure on the outside of the first bolt 4, and the clamping block 10 and the spring 11 are arranged at equal angles on the inner wall of the connecting block 6, the inside of the clamping groove 9 is connected to the spring 11 in a clamping manner, and the spring 11 forms a sliding structure on the inner wall of the connecting block 6.

[0026] like Figure 2 and Figure 3 As shown, the outer side of the bidirectional threaded rod 12 is connected to the first clamp arm 14 by means of threads, and the outer side of the bidirectional threaded rod 12 is connected to the second clamp arm 14 by means of threads, the cross-section of the first clamp arm 14 and the second clamp arm 15 is an arc-shaped structure, and a third bolt 17 is installed at the left end of the second clamp arm 15, the lower end of the second bolt 16 is connected to the third bolt 17 by means of threads, and the second nut 18 is connected to the outer side of the second bolt 16 by means of threads, so as to facilitate the adjustment of the clamping distance.

[0027] How it works: When using this easy-to-attach bicycle trailer, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, first, the connecting device is installed on the left side fixing block 3 of the trailer body 1, and the connecting block 6 is connected to the fixing block 3 by the first bolt 4. After being connected together, the position of the first bolt 4 is fixed by the first nut 5. After being fixed, the orientation of the protective shell 8 is adjusted according to the orientation of the object, and the spring 11 is slid to the upper and lower ends to squeeze the card block 10, and the spring 11 is disengaged from the card slot 9, and the protective shell 8 can be rotated 90 degrees inside the connecting block 6. After rotating 90 degrees, the spring 11 is re-engaged into the inside of the card slot 9 through the rebound of the card block 10, and after the protective shell 8 is adjusted to a certain position, the object can be moved. The body is inserted in the middle of the first clamp arm 14 and the second clamp arm 15, and the starting motor 13 drives the bidirectional threaded rod 12 to rotate. When the bidirectional threaded rod 12 rotates, the first clamp arm 14 and the second clamp arm 15 are brought closer to the object. After the object is clamped, the position of the second bolt 16 and the third bolt 17 on the left side of the first clamp arm 14 and the second clamp arm 15 is adjusted, and the second bolt 16 and the third bolt 17 can be adjusted by rotating the second nut 18 and the third nut 19 respectively. The second bolt 16 and the third bolt 17 are then connected together to stabilize the connection between the connecting device and the bicycle. This is the method of using the easy-to-connect bicycle trailer.

[0028] 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.

[0029] 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 that is easy to connect, comprising: A trailer body (1) for installation, a wheel (2) fixedly mounted on the lower end of the trailer body (1), and a fixing block (3) mounted on the left side of the trailer body (1); It is characterized by further comprising: A first bolt (4), the left side of the fixing block (3) is connected with the first bolt (4), and the front end of the first bolt (4) is installed with a first nut (5), the middle part of the first bolt (4) is installed with a connecting block (6), and the inside of the connecting block (6) is provided with a hole groove (7), and the inside of the hole groove (7) is connected with a protective shell (8), the outer end of the protective shell (8) is provided with a slot (9), and the inside of the slot (9) is provided with a block (10), and the outer end of the block (10) is provided with a spring (11), and the left side of the protective shell (8) is installed with a bidirectional threaded rod (12) , and a motor (13) is arranged at the upper end of the bidirectional threaded rod (12), a first clamping arm (14) and a second clamping arm (15) are arranged at the outer end of the bidirectional threaded rod (12), and the second clamping arm (15) is located at the lower side of the first clamping arm (14), a second bolt (16) is arranged at the left end of the first clamping arm (14), and a third bolt (17) is arranged at the lower end of the second bolt (16), and a second nut (18) and a third nut (19) are arranged at the outer ends of the second bolt (16) and the third bolt (17), and the third nut (19) is located at the lower side of the second nut (18).

2. The bicycle trailer that is easy to connect according to claim 1, characterized in that: The connecting block (6) forms a rotating structure on the outside of the first bolt (4), and the clamping block (10) and the spring (11) are arranged at equal angles on the inner wall of the connecting block (6).

3. The bicycle trailer that is easy to connect according to claim 1, characterized in that: The interior of the clamping groove (9) is connected to the spring (11) in a clamping manner, and the spring (11) forms a sliding structure on the inner wall of the connecting block (6).

4. The easily connectable bicycle trailer according to claim 1, characterized in that: The outer side of the bidirectional threaded rod (12) is connected to the first clamping arm (14) by means of threads, and the outer side of the bidirectional threaded rod (12) is connected to the second clamping arm (15) by means of threads.

5. The bicycle trailer that is easy to connect according to claim 1, characterized in that: The cross sections of the first clamp arm (14) and the second clamp arm (15) are arc-shaped structures, and a third bolt (17) is installed at the left end of the second clamp arm (15).

6. The easily connectable bicycle trailer according to claim 1, characterized in that: The lower end of the second bolt (16) is connected to the third bolt (17) in a threaded manner, and the second nut (18) is connected to the outer side of the second bolt (16) in a threaded manner.

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