A connecting device for connecting a bicycle frame to a car

Abstract

The utility model discloses a kind of connecting devices of tail hanging bicycle frame and car, it is related to bicycle bracket technical field, including trailer square mouth, the both sides of trailer square mouth are provided with connecting mechanism, the inside connection of trailer square mouth has connecting rod, the inside of connecting rod is provided with adjusting mechanism, the front end of adjusting mechanism is fixed with car tail rod, the connecting mechanism includes the installation box fixed in the both sides of trailer square mouth, the inside one side of installation box is fixed with return spring, one end of return spring is fixed with connecting plate, the side of connecting plate is fixed with clamping block, the both sides of connecting rod are provided with clamping groove;The connecting device of tail hanging bicycle frame and car, by the setting of connecting mechanism, when connecting, to avoid using bolt to connect, make connection more simple and convenient, save time, improve installation efficiency, save physical strength, improve the convenience of device.

Description

Technical Field

[0001] This utility model relates to the field of bicycle bracket technology, specifically a connection device between a bicycle frame and a car. Background Technology

[0002] As a means of transportation, bicycles are widely used in people's daily lives due to their advantages of being low-carbon, environmentally friendly, and beneficial to people's health. In daily life, people usually use bicycle racks to quickly load bicycles onto cars so that they can be transported to the outdoors for exercise.

[0003] Chinese Patent Publication No. CN218616475U discloses a convenient bicycle rack for the rear of a vehicle, including a rear pole. A mounting bracket is located at the end of the rear pole furthest from the vehicle, and a wheel mount is mounted on the mounting bracket. Two sets of adjusting plates are located at the end of the rear pole near the mounting bracket. A connecting rod for connecting to the mounting bracket is rotatably connected between the adjusting plates. A drive assembly for adjusting the relative position of the connecting rod and the rear pole is located between the connecting rod and the adjusting plates. This application provides the effect of conveniently adjusting the distance between the bicycle on the bicycle rack and the trunk, thereby ensuring the normal opening and closing of the car trunk. However, the aforementioned patent connects the rear pole to the trailer hitch at the rear of the vehicle using bolts during installation, which is time-consuming and laborious, reducing installation efficiency and the convenience of the device. Therefore, we propose a connection device between the rear-mounted bicycle rack and the vehicle. Summary of the Invention

[0004] The purpose of this utility model is to provide a connection device between a bicycle frame and a car, so as to solve the problem in the prior art that when installing, the rear rod is connected to the trailer hitch at the rear of the car by bolts, which is time-consuming and laborious to install and remove, reduces installation efficiency, and reduces the convenience of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a connection device for a bicycle frame to a car with a trailer, including a trailer square opening, connecting mechanisms on both sides of the trailer square opening, a connecting rod connected inside the trailer square opening, an adjusting mechanism inside the connecting rod, and a tail rod fixed to the front end of the adjusting mechanism;

[0006] The connecting mechanism includes mounting boxes fixed to both sides of the trailer's square opening. A return spring is fixed inside one side of the mounting box, a connecting plate is fixed to one end of the return spring, a locking block is fixed to one side of the connecting plate, and locking grooves are provided on both sides of the connecting rod.

[0007] Preferably, the connecting mechanism further includes a pull rod fixed to the middle of the other side of the connecting plate, a pin symmetrically sliding through the top of the trailer square opening, and insertion holes through the top of the card block and the upper and lower sides of the card slot.

[0008] Preferably, the length and width of the end of the connecting rod are equal to the length and width of the slot of the trailer square opening, so as to facilitate a tight connection between the connecting rod and the trailer square opening. The two sides of the locking block are provided with inclined surfaces, so as to facilitate the connecting rod to squeeze the locking block and move the locking block. The connecting plate slides inside the mounting box.

[0009] Preferably, the locking block penetrates the inner cavity of the trailer's square opening, facilitating its embedding in the slot. The pull rod penetrates one side of the mounting box and is slidably connected to the mounting box, making it easy to pull the pull rod and move the connecting plate.

[0010] Preferably, the adjustment mechanism includes a receiving cavity opened in the middle of one end of the connecting rod, a limiting cavity symmetrically opened in one end of the connecting rod, a limiting rod sliding inside the limiting cavity, the limiting rod symmetrically fixed to one end of the tail rod, a screw fixed in the middle of one end of the tail rod, a knob screwed to the outer wall of the screw, a limiting block symmetrically fixed on one side of the knob, and a limiting groove opened in one end of the connecting rod.

[0011] Preferably, the screw is located inside the storage cavity, and the outer side of the knob is provided with anti-slip texture to facilitate rotation and prevent slippage.

[0012] Preferably, a baffle is fixed to the other end of the limiting rod, and the baffle is located inside the limiting cavity, and the limiting block is connected to the inside of the limiting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This application utilizes a connecting mechanism. During connection, the connecting rod is embedded in the trailer square opening, pressing the inclined surface of the locking block. This causes the locking block to move the connecting plate, pressing the return spring. When the locking block aligns with the slot, the return spring resets the locking block into the slot. Then, the pin is inserted into the socket to complete the connection. This avoids the use of bolts, making the connection simpler and more convenient, saving time, improving installation efficiency, saving physical effort, and enhancing the convenience of the device.

[0015] 2. In this application, the adjustment mechanism is designed so that by rotating the knob, which is screwed to the screw rod, the tail rod is limited by the cooperation of the limiting rod and the limiting cavity. When the knob is rotated, the screw rod drives the tail rod to move, which makes it easy to adjust according to the size of the bicycle, keeping the bicycle away from the trunk of the car and preventing the bicycle from touching the trunk, thus ensuring the safety of the bicycle when placed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the reset spring mounting structure of this utility model;

[0018] Figure 3 A schematic diagram of the card slot structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the limiting rod of this utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the limiting block of this utility model.

[0021] The following numbers are labeled in the diagram: 100, trailer square opening; 200, connecting mechanism; 210, mounting box; 220, return spring; 230, connecting plate; 240, pull rod; 250, locking block; 260, pin; 270, slot; 280, insertion hole; 300, connecting rod; 400, tail rod; 500, adjusting mechanism; 510, storage cavity; 520, limiting cavity; 530, limiting rod; 540, screw; 550, knob; 560, limiting block; 570, limiting groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Figures 1-5 As shown, this utility model provides a technical solution for a connection device between a bicycle frame and a car, including a trailer square opening 100, connecting mechanisms 200 on both sides of the trailer square opening 100, a connecting rod 300 connected inside the trailer square opening 100, an adjusting mechanism 500 inside the connecting rod 300, and a tail rod 400 fixed to the front end of the adjusting mechanism 500.

[0024] Please see Figure 2 and Figure 3The connecting mechanism 200 includes mounting boxes 210 fixed to both sides of the trailer square opening 100. A return spring 220 is fixed inside one side of the mounting box 210. A connecting plate 230 is fixed to one end of the return spring 220. A locking block 250 is fixed to one side of the connecting plate 230. The connecting rod 300 has slots 270 on both sides. The connecting mechanism 200 also includes a pull rod 240 fixed to the middle of the other side of the connecting plate 230. A pin 260 is symmetrically slidably passed through the top of the trailer square opening 100. Insertion holes 280 are passed through the top of the locking block 250 and the upper and lower sides of the slot 270. The length and width of the end of the connecting rod 300 are equal to the length and width of the slot of the trailer square opening 100. The locking block 250 has inclined surfaces on both sides. The connecting plate 230 slides inside the mounting box 210. The locking block 250 penetrates the inner cavity of the trailer square opening 100, and the pull rod 240 penetrates one side of the mounting box 210, with the pull rod 240 and the mounting box 210 slidably connected. Utilizing the connecting mechanism 200, during connection, the connecting rod 300 is embedded in the trailer square opening 100, pressing the inclined surface of the locking block 250. This causes the locking block 250 to move the connecting plate 230, pressing the return spring 220. When the locking block 250 aligns with the slot 270, the return spring 220 resets the locking block 250, embedding it into the slot 270. Then, the pin 260 is inserted into the insertion hole 280, completing the connection. This avoids the use of bolts, making the connection simpler and more convenient, saving time, improving installation efficiency, saving physical effort, and enhancing the device's usability.

[0025] Please see Figure 4 and Figure 5 The adjustment mechanism 500 includes a receiving cavity 510 located in the middle of one end of the connecting rod 300, a limiting cavity 520 symmetrically provided at one end of the connecting rod 300, a limiting rod 530 sliding inside the limiting cavity 520, the limiting rod 530 symmetrically fixed to one end of the tail rod 400, a screw 540 fixed at the middle of one end of the tail rod 400, a knob 550 screwed to the outer wall of the screw 540, a limiting block 560 symmetrically fixed on one side of the knob 550, and a limiting groove 570 provided at one end of the connecting rod 300; the screw 540 is located inside the receiving cavity 510, and a protective device is provided on the outer side of the knob 550. Slippery texture; a baffle is fixed to the other end of the limiting rod 530, and the baffle is located inside the limiting cavity 520. The limiting block 560 is connected to the inside of the limiting groove 570. By using the setting of the adjusting mechanism 500, the knob 550 is rotated and screwed to the screw 540. The limiting rod 530 and the limiting cavity 520 cooperate to limit the tail rod 400. When the knob 550 is rotated, the screw 540 drives the tail rod 400 to move, which is convenient to adjust according to the size of the bicycle, so that the bicycle is away from the trunk of the car and avoids the bicycle touching the trunk, ensuring the safety of the placement.

[0026] In use, this utility model is as follows: First, the trailer square opening 100 is installed to the rear of the car. When installing the bicycle frame, the connecting rod 300 is embedded in the trailer square opening 100, and the inclined surface of the locking block 250 is pressed, causing the locking block 250 to move the connecting plate 230 and press the return spring 220. When the locking block 250 is aligned with the slot 270, the return spring 220 resets the connecting plate 230, causing the locking block 250 to be embedded in the slot 270. This aligns the insertion hole 280 on the locking block 250 with the insertion hole 280 on the slot 270. Then, the pin 260 is inserted into the insertion hole 280, and the locking block 250 is repositioned. The connection is completed by setting limits, avoiding the use of bolts, making the connection simpler and more convenient, saving time, and facilitating later disassembly. After the connection is completed, place the bicycle on the frame. If the bicycle is too close to the car trunk, turn knob 550. Knob 550 is screwed to screw rod 540. Using the cooperation of limit rod 530 and limit cavity 520, the tail rod 400 is limited, so that the tail rod 400 can only move in a straight line. When knob 550 is turned, screw rod 540 moves, thereby causing the tail rod 400 to move and adjust the position of the bicycle frame, increasing the distance between the bicycle and the car trunk and preventing them from getting too close.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A connection device for a bicycle frame mounted on a tail and connected to a car, characterized in that: Includes a trailer opening (100), with connecting mechanisms (200) on both sides of the trailer opening (100), a connecting rod (300) connected inside the trailer opening (100), an adjusting mechanism (500) inside the connecting rod (300), and a tail rod (400) fixed to the front end of the adjusting mechanism (500). The connecting mechanism (200) includes a mounting box (210) fixed to both sides of the trailer square opening (100). A return spring (220) is fixed inside one side of the mounting box (210). A connecting plate (230) is fixed to one end of the return spring (220). A locking block (250) is fixed to one side of the connecting plate (230). The connecting rod (300) has a locking groove (270) on both sides.

2. The connection device between a bicycle frame and a car as described in claim 1, characterized in that: The connecting mechanism (200) also includes a pull rod (240) fixed to the middle of the other side of the connecting plate (230), and a pin (260) symmetrically slides through the top of the trailer square opening (100). The top of the card block (250) and the upper and lower sides of the card slot (270) are both provided with insertion holes (280).

3. The connection device between a bicycle frame and a car as described in claim 1, characterized in that: The length and width of the end of the connecting rod (300) are equal to the length and width of the slot of the trailer square opening (100), the two sides of the locking block (250) are provided with inclined surfaces, and the connecting plate (230) slides inside the mounting box (210).

4. The connection device between a bicycle frame and a car as described in claim 2, characterized in that: The locking block (250) passes through the inner cavity of the trailer square opening (100), the pull rod (240) passes through one side of the mounting box (210), and the pull rod (240) is slidably connected to the mounting box (210).

5. The connection device between a bicycle frame and a car as described in claim 1, characterized in that: The adjustment mechanism (500) includes a receiving cavity (510) opened in the middle of one end of the connecting rod (300), a limiting cavity (520) symmetrically opened in one end of the connecting rod (300), a limiting rod (530) sliding inside the limiting cavity (520), the limiting rod (530) symmetrically fixed to one end of the tail rod (400), a screw (540) fixed in the middle of one end of the tail rod (400), a knob (550) screwed to the outer wall of the screw (540), a limiting block (560) symmetrically fixed on one side of the knob (550), and a limiting groove (570) opened in one end of the connecting rod (300).

6. The connection device between a bicycle frame and a car as described in claim 5, characterized in that: The screw (540) is located inside the receiving cavity (510), and the outer side of the knob (550) is provided with anti-slip texture.

7. The connection device between a bicycle frame and a car as described in claim 5, characterized in that: The other end of the limiting rod (530) is fixed with a baffle, and the baffle is located inside the limiting cavity (520). The limiting block (560) is connected to the inside of the limiting groove (570).

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