Connecting rod quick release mechanism for traction

Abstract

A connecting rod quick-release mechanism for traction comprises a quick-release rod, a connecting rod and a quick-release pressing rotating mechanism. A shell of the quick-release pressing rotating mechanism is connected with a shell end cover through a screw, a spring is installed on a moving shaft and a spring guide column boss of a moving shaft end cover, the upper end and the lower end of the spring are limited through a shaft shoulder on the moving shaft and the moving shaft end cover respectively, and the moving shaft end cover is connected with the shell through a screw. The shell and the connecting rod are connected through the connecting shaft, the connecting shaft and the connecting rod are connected through a bolt, the shell can rotate around the connecting shaft, and a rubber damping sleeve is installed on the connecting shaft section between the shell and the connecting rod to reduce impact in the working process; the mechanism is compact in structure and easy to assemble and disassemble, through holes are formed in the connecting rod and the quick-release rod so that the connecting rod and the quick-release rod can be conveniently connected with a traction mechanism and a dragged mechanism respectively, and the mechanism can be installed between the traction mechanism and the dragged mechanism dragged or pushed by the traction mechanism and can be flexibly disassembled so that the traction mechanism can be separated from the dragged mechanism.

Description

Technical Field

[0001] This utility model relates to the field of connecting device technology, specifically a quick-release mechanism for traction connecting rods. Background Art

[0002] Quick-release mechanisms are widely used to connect towing mechanisms and towed cargo mechanisms. They can be easily disassembled to quickly separate and reconnect when it is necessary to replace the cargo mechanism or towing mechanism.

[0003] Currently used quick-release mechanisms each have their advantages and disadvantages. While rope-type quick-release mechanisms offer convenient disassembly, the flexible nature of the rope limits their application to towing operations. Furthermore, the speed of the towed mechanism is easily affected during towing, impacting stability and increasing the risk of collisions, especially when sudden speed changes occur. Quick-release devices equipped with quick-release screws can handle both pushing and towing, but frequent screw tightening during connection and disconnection is time-consuming and prone to damage or loss. Additionally, some types of these locking devices, where friction is used to clamp the two connecting parts (e.g., bicycle seat lifting mechanisms), cannot withstand heavy loads. While quick-release couplers used in trains solve the problem of rapid connection and separation and enable towing and pushing / pulling under heavy loads, their excessive weight, complex structure, and high cost make them unsuitable for installation on small towing mechanisms.

[0004] In view of the existing problems of quick-release mechanisms, there is a need for a new type of quick-release mechanism, which should have a compact structure, convenient operation in the separation and connection process, sufficient rigidity to ensure the speed of the towed mechanism is stable, and be able to perform both pushing and dragging operations. Summary of the Invention

[0005] To address the problems existing in current quick-release mechanisms, the purpose of this utility model is to provide a quick-release mechanism for traction linkages. This mechanism has a compact structure, is easy to install and disassemble, and has through holes on the connecting rod and quick-release rod for easy connection to the traction mechanism and the traction mechanism respectively. It can be installed between the traction mechanism and the traction mechanism that it is dragging or pushing, and can be flexibly disassembled to separate the traction mechanism from the traction mechanism.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a quick-release mechanism for a traction linkage, comprising a quick-release rod, a connecting rod, and a quick-release pressing and rotating mechanism; the quick-release pressing and rotating mechanism comprises a moving shaft, a spring, a moving shaft end cap, a housing end cap, a housing, a connecting shaft, a rubber shock-absorbing sleeve, and a button;

[0007] The outer shell of the quick-release pressing and rotating mechanism is connected to the end cover of the housing by screws. The screw mounting points on the end cover of the housing are countersunk to avoid interference with the rotation of the quick-release lever when it needs to be disconnected.

[0008] The spring is installed on the spring guide post protrusion of the movable shaft and the movable shaft end cover. The upper and lower ends of the spring are respectively limited by the shaft shoulder on the movable shaft and the movable shaft end cover. The button is installed on one side of the movable shaft for easy pressing by the user. The movable shaft end cover is connected to the outer shell by screws.

[0009] The outer shell and connecting rod of the quick-release pressing and rotating mechanism are connected by a connecting shaft. The connecting shaft and the connecting rod are connected by bolts. The outer shell can rotate around the connecting shaft. A rubber shock-absorbing sleeve is installed on the connecting shaft section between the outer shell and the connecting rod to reduce the impact during operation.

[0010] Furthermore, the quick-release rod shaft section is radially arranged with cylindrical bodies for limiting the position, and the housing end cap is machined with mutually perpendicular rectangular through holes and an inner rectangular groove. This not only allows the quick-release rod shaft end to smoothly extend into the quick-release pressing and rotating mechanism, but also limits the position after it has been inserted, through the cooperation of the cylindrical bodies and the rectangular groove.

[0011] Furthermore, the movable shaft is machined with a flat surface and holes. The end of the quick-release rod has a boss that can penetrate into the hole. When connected, the hole and the boss's axis must not be aligned. At this time, the distance from the end of the boss to the plane of the movable shaft is small, so the quick-release rod cannot move and the movable shaft cannot rotate, in order to keep the boss's axis and the hole's axis roughly in a vertical plane. When disconnecting, press the button until the boss's axis coincides with the hole's axis, insert the quick-release rod into the housing end cover a certain distance so that the boss of the quick-release rod extends into the hole, and rotate the quick-release pressing and rotating mechanism 90° clockwise or counterclockwise to pull the quick-release rod out from the square hole in the housing end cover, completing the disconnection operation.

[0012] The beneficial effects of this utility model are: the quick-release mechanism for traction linkage has a simple structure, is easy to install and disassemble, has a compact structure, and is convenient to operate in the separation and engagement process. It has sufficient rigidity to ensure the speed of the traction mechanism is stable and can simultaneously perform pushing and dragging operations. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings:

[0014] Figure 1 This is a structural schematic diagram of a quick-release mechanism for a traction link in an embodiment of this utility model;

[0015] Figure 2 This is a structural front view of a quick-release mechanism for a traction link in an embodiment of this utility model;

[0016] Figure 3This is a top view of the structure of a quick-release mechanism for a traction link in an embodiment of this utility model;

[0017] In the diagram: 1. Quick-release lever; 2. Connecting rod; 3. Housing end cap; 4. Housing; 5. Button; 6. Moving shaft; 7. Moving shaft end cap; 8. Spring; 9. Connecting shaft; 10. Rubber shock absorber sleeve. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] like Figures 1 to 3 As shown, a quick-release linkage mechanism for traction is provided. Connecting rod 2 and quick-release rod 1 are provided with through holes for easy connection to the traction mechanism and the traction device, respectively, for dragging or pushing operations. Specifically, the end effector includes: quick-release rod 1, connecting rod 2, housing end cap 3, outer shell 4, button 5, moving shaft 6, moving shaft end cap 7, spring 8, connecting shaft 9, and rubber shock absorber 10. The housing end cap 3 and outer shell 4 are connected together by screws. The spring 8 is mounted on the spring guide of the moving shaft 6 and the moving shaft end cap 7. At the column boss, the outer shell 4 can rotate around the connecting shaft 9 to achieve the function of disconnection and connection. The rubber shock-absorbing sleeve 10 can reduce the impact during operation. The quick release rod 1 has a cylindrical body arranged radially on the shaft section for limiting. The end cap 3 of the shell is machined with mutually perpendicular rectangular through holes and an inner rectangular groove. The moving shaft 6 is machined with holes. The end of the quick release rod 1 has a boss that can be inserted into the hole. By pressing the button 5, the boss at the end of the quick release rod 1 can be inserted into the hole, and then the quick release pressing and rotating mechanism can be rotated to allow the mechanism to complete the connection and disconnection operation.

[0020] This traction quick-release mechanism has two working modes: maintaining connection and disconnection. To maintain the connection between the traction mechanism and the traction device, button 5 remains stationary, spring 8 is in a free state, the axis of the hole in the moving shaft 6 and the end boss of the quick-release rod 1 are not aligned, the quick-release rod 1 cannot move, and the mechanism remains connected. In this state, if a dragging operation is performed, the radially mounted cylinder of the quick-release rod 1 contacts the rectangular groove of the housing end cover 3 to bear the pulling force. If a pushing operation is performed, the end boss of the quick-release rod 1 fits against the plane machined on the moving shaft 6 to bear the pushing force. If the mechanism needs to be disconnected, button 5 is pressed, compressing spring 8 to move the moving shaft 6 until the axis of the end boss of the quick-release rod 1 coincides with the axis of the hole in the moving shaft 6. The quick-release rod 1 is then inserted into the housing end cover 3 a certain distance so that the end boss of the quick-release rod 1 extends into the hole in the moving shaft 6. Then, the quick-release pressing and rotating mechanism is rotated 90° clockwise or counterclockwise to pull the quick-release rod out from the square hole in the housing end cover 3, completing the disconnection operation.

[0021] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quick-release mechanism for a traction linkage, characterized in that: It consists of a quick-release lever (1), a connecting rod (2), and a quick-release pressing and rotating mechanism; the quick-release pressing and rotating mechanism includes a moving shaft (6), a spring (8), a moving shaft end cap (7), a housing end cap (3), a housing (4), a connecting shaft (9), a shock-absorbing sleeve (10), and a button (5); the housing (4) and the housing end cap (3) are connected by screws, and the screws on the housing end cap (3) are countersunk to avoid interference with the rotation of the quick-release lever (1) when it needs to be disconnected; the spring (8) is installed on the spring guide of the moving shaft (6) and the moving shaft end cap (7). On the column protrusion, the upper and lower ends of the spring (8) are limited by the shoulder on the moving shaft (6) and the end cover (7) of the moving shaft, respectively. The button (5) is installed on one side of the moving shaft (6) for easy pressing by the user. The end cover (7) of the moving shaft is connected to the outer shell (4) by screws. The outer shell (4) and the connecting rod (2) are connected by the connecting shaft (9). The connecting shaft (9) and the connecting rod (2) are connected by bolts. The outer shell (4) can rotate around the connecting shaft (9). The section of the connecting shaft (9) between the outer shell (4) and the connecting rod (2) is equipped with a rubber shock-absorbing sleeve (10) to reduce impact.

2. The quick-release mechanism for traction linkage according to claim 1, characterized in that: The quick-release rod (1) has a cylindrical body arranged radially on its shaft section for limiting the position, and the end cap (3) of the housing is machined with rectangular through holes perpendicular to each other and a rectangular groove on the inner side.

3. The quick-release mechanism for traction linkage according to claim 1, characterized in that: The movable shaft (6) has holes, and the end of the quick release rod (1) has a boss that can be inserted into the hole. After pressing the button (5) to insert the boss at the end of the quick release rod (1) into the hole, rotate the quick release pressing and rotating mechanism to allow the mechanism to complete the connection and disconnection operation.

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