Trolley traction connecting seat

Abstract

The utility model provides a trolley traction connecting seat, and relates to the technical field of trolleys. The supporting assembly comprises a first transverse frame fixedly connected to the support, a second transverse frame is fixedly connected to the bottom end of the support, the buffering assembly comprises a supporting frame fixedly connected to the first transverse frame, a spring is fixedly connected to the bottom end of the supporting frame, a damping rod is rotationally connected to the bottom end of the first transverse frame, and a bottom transverse frame is fixedly connected to the bottom end of the damping rod; the quick release assembly comprises a protective sleeve arranged on the support in a sleeving mode, one end of the protective sleeve is fixedly connected with a first limiting frame, the other end of the protective sleeve is fixedly connected with a second limiting frame, through the synergistic effect of a spring and a damping rod, the spring absorbs instantaneous impact, the damping rod restrains springback oscillation, and through the design, efficient dissipation of vibration energy is achieved; compared with the prior art lacking of buffering rigid connection, the technical scheme has the advantages that bumping transmission is obviously reduced, vehicle-mounted articles are protected, and the stability of the cart is improved.

Description

Technical Field

[0001] This utility model relates to the field of handcart technology, and in particular to a handcart traction connector. Background Technology

[0002] In the field of handcart design and use, with the continuous diversification of user needs and the increasing complexity of usage scenarios;

[0003] The existing handcart structure has defects in its support structure design, which cannot provide sufficient stability and sturdiness. This makes the handcart prone to shaking or even tipping over when carrying heavy goods or moving on uneven ground, posing a safety hazard to users. When the handcart encounters impacts or bumps, the vibration is directly transmitted to the goods and the frame, which not only easily damages the goods but also accelerates the wear and tear of the handcart itself and shortens its service life.

[0004] Therefore, this utility model provides a handcart traction connector. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a handcart traction connector.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a handcart traction connecting seat, including a bracket;

[0007] A support assembly, comprising a first crossbeam fixedly connected to a bracket, and a second crossbeam fixedly connected to the bottom end of the bracket.

[0008] A buffer assembly includes a support frame fixedly connected to a crossbeam, a spring fixedly connected to the bottom end of the support frame, a damping rod rotatably connected to the bottom end of the crossbeam, and a bottom crossbeam fixedly connected to the bottom end of the damping rod.

[0009] The quick-release assembly includes a protective sleeve fitted on a bracket. One end of the protective sleeve is fixedly connected to a first limiting bracket, and the other end of the protective sleeve is fixedly connected to a second limiting bracket. The first limiting bracket has a bolt internally threaded connection.

[0010] In a preferred embodiment, a top vertical frame is fixedly connected to the top of the bracket, and cover plates are fixedly connected to both ends of the second horizontal frame.

[0011] In a preferred embodiment, the two ends of the bottom crossbeam are rotatably connected to rear wheels, and the top end of the damping rod is rotatably connected to the bottom end of the second crossbeam.

[0012] In a preferred embodiment, the bottom end of the spring is fixedly connected to the outside of the bottom crossbar.

[0013] In a preferred embodiment, the bottom end of the limiting frame is fixedly connected to a mounting frame, the top end of the mounting frame is fixedly connected to an extension column, and the bottom end of the mounting frame is rotatably connected to a front wheel.

[0014] In a preferred embodiment, the outer side of the first limiting frame is threaded onto the second limiting frame, and the first limiting frame and the second limiting frame are fixedly connected to both ends of the protective sleeve by bolts.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, the spring and the damping rod work together to absorb the instantaneous impact and suppress the rebound oscillation. This design achieves efficient dissipation of vibration energy and avoids rigid collisions. Compared with the rigid connection that lacks buffering in the background technology, this solution significantly reduces the transmission of bumps, protects the items on the vehicle and improves the stability of the trolley.

[0017] 2. In this utility model, the protective sleeve can be quickly fitted onto the bracket by the threaded locking of the limiting bracket and the bolt. The bolt is fixed and limited. This design enables the front wheel assembly to be disassembled and assembled without tools, while maintaining the connection strength. Compared with traditional welding or complex assembly methods, this structure simplifies the maintenance process, improves mobility, and the protective sleeve reduces bracket wear and extends service life. Attached Figure Description

[0018] Figure 1 A perspective view of a handcart traction connector provided by this utility model;

[0019] Figure 2 A schematic diagram of the crossbeam structure of a handcart traction connecting seat provided by this utility model;

[0020] Figure 3 A schematic diagram of a damping rod structure for a handcart traction connecting seat provided by this utility model;

[0021] Figure 4 A schematic diagram of the quick-release assembly structure of a handcart traction connector provided by this utility model.

[0022] Legend:

[0023] 1. Bracket;

[0024] 2. Support components; 21. Horizontal frame one; 22. Horizontal frame two; 23. Top vertical frame; 24. Cover plate; 25. Rear wheel;

[0025] 3. Buffer assembly; 31. Support frame; 32. Spring; 33. Damping rod; 34. Bottom crossbar;

[0026] 4. Quick-release assembly; 41. Protective cover; 42. Limit bracket one; 43. Limit bracket two; 44. Bolt; 45. Mounting bracket; 46. Extension column; 47. Front wheel. Detailed Implementation

[0027] 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.

[0028] like Figure 1 - Figure 2 As shown, this embodiment provides a technical solution: a handcart traction connecting seat, including a bracket 1;

[0029] Support component 2 includes a first horizontal frame 21 fixedly connected to the bracket 1, a second horizontal frame 22 fixedly connected to the bottom end of the bracket 1, a top vertical frame 23 fixedly connected to the top end of the bracket 1, cover plates 24 fixedly connected to both ends of the second horizontal frame 22, and rear wheels 25 rotatably connected to both ends of the bottom horizontal frame 34.

[0030] The bracket 1 serves as the basic support structure of the entire traction connection seat, bearing and connecting various other components to ensure the overall stability and firmness of the connection seat, providing a solid foundation for the traction of the handcart. The first crossbeam 21 is fixedly connected to the bracket 1, mainly used to increase the lateral stability of the bracket 1 and prevent the bracket 1 from deforming laterally under stress. It also provides connection points for other components. The second crossbeam 22 is located at the bottom of the bracket 1 and also plays the role of lateral support. It works in conjunction with the first crossbeam 21 to further enhance the stability of the bottom of the bracket 1 and serves as the installation base for the connecting cover plate 24 and the rear wheel 25. The top vertical frame 23 is fixedly connected to the top of the bracket 1, mainly used to raise the height of the bracket 1 and provide connection and support points for the upper structure of the handcart or other additional devices. The cover plate 24 is connected to both ends of the second crossbeam 22, serving to cover and protect the second crossbeam 22 and its internal structure, while also increasing the structural strength of the second crossbeam 22. The rear wheel 25 is installed at both ends of the bottom crossbeam 34, providing the power and support for the handcart to move, enabling the handcart to move smoothly on the ground.

[0031] like Figure 1 - Figure 3As shown, the buffer assembly 3 includes a support frame 31 fixedly connected to the cross frame 21, a spring 32 fixedly connected to the bottom end of the support frame 31, a damping rod 33 rotatably connected to the bottom end of the cross frame 21, the top end of the damping rod 33 rotatably connected to the bottom end of the cross frame 22, a bottom cross frame 34 fixedly connected to the bottom end of the damping rod 33, and the bottom end of the spring 32 fixedly connected to the outside of the bottom cross frame 34.

[0032] The support frame 31 is fixedly connected to the cross frame 21, providing a support base for the entire buffer assembly 3 and ensuring that other buffer components can be installed and work stably. The spring 32 is installed at the bottom of the support frame 31. Utilizing the elastic characteristics of the spring 32, when the handcart is impacted or bumped, the spring 32 absorbs and buffers the impact energy through its extension and contraction, reducing the impact of vibration on the handcart and the goods it carries. One end of the damping rod 33 is rotatably connected to the bottom of the cross frame 21, and the other end is rotatably connected to the bottom of the cross frame 22. Through its internal damping mechanism, it generates damping force when the handcart is impacted, further buffering and consuming the impact energy, while limiting the swing amplitude of the handcart and improving stability. The bottom cross frame 34 is fixedly connected to the bottom of the damping rod 33 and also connected to the bottom of the spring 32, serving as the bottom connection structure of the buffer assembly 3, transmitting the force of the buffer assembly 3 to other parts of the handcart, such as the wheels or frame.

[0033] like Figure 1 , Figure 3 and Figure 4 As shown, the quick-release assembly 4 includes a protective sleeve 41 fitted on the bracket 1. One end of the protective sleeve 41 is fixedly connected to a first limiting bracket 42, and the other end of the protective sleeve 41 is fixedly connected to a second limiting bracket 43. The outer side of the first limiting bracket 42 is threadedly connected to the second limiting bracket 43, and the inner side of the first limiting bracket 42 is threadedly connected to a bolt 44. The first limiting bracket 42 and the second limiting bracket 43 are fixedly connected to both ends of the protective sleeve 41 by bolts 44. The bottom end of the first limiting bracket 42 is fixedly connected to a mounting bracket 45, the top end of the mounting bracket 45 is fixedly connected to an extension column 46, and the bottom end of the mounting bracket 45 is rotatably connected to a front wheel 47.

[0034] The protective sleeve 41 is fitted onto the bracket 1, primarily serving to protect the bracket 1 from scratches, collisions, and other damage during use. It also provides some shock absorption, reducing the transmission of vibrations to other parts of the trolley. Limiting bracket one 42 and limiting bracket two 43 are fixedly connected to both ends of the protective sleeve 41 via threads and further secured with bolts 44. These bolts primarily limit the position of the protective sleeve 41 on the bracket 1, preventing it from sliding or falling off during use, and also provide connection points for installing other components. The bolts 44 are threaded into the inside of limiting bracket one 42 and pass through both limiting bracket one 42 and limiting bracket two 43, further securing limiting bracket one 42 and... Limiting bracket 43 enhances the connection's strength, ensuring the stability and safety of the protective sleeve 41 on the bracket 1. Mounting bracket 45 is fixedly connected to the bottom end of limiting bracket 42, mainly used for installing and fixing the extension column 46 and the front wheel 47, providing a stable foundation for the installation of the front wheel 47, and can also serve as an interface for connecting other components. Extension column 46 is fixedly connected to the top end of mounting bracket 45, mainly used to increase the height of mounting bracket 45, providing a higher connection and support point for the front structure of the trolley or other additional devices. Front wheel 47 is rotatably connected to the bottom end of mounting bracket 45, providing front support and movement power for the trolley, and in conjunction with rear wheel 25, enabling the trolley to move and turn flexibly on the ground.

[0035] Working principle:

[0036] As shown in the figure:

[0037] In use: Bracket 1 serves as the basic support, bearing and connecting other components to ensure stability and robustness. Horizontal frame 1 21 is fixed to bracket 1, increasing lateral stability and providing connection points for other components. Horizontal frame 22 provides lateral support at the bottom of bracket 1, working with horizontal frame 1 21 to enhance bottom stability and serving as the mounting base for cover plate 24 and rear wheels 25. Top vertical frame 23 elevates the height at the top of bracket 1, providing connection and support points for the upper structure. Cover plate 24 connects to both ends of horizontal frame 22, protecting horizontal frame 22 and its internal structure, increasing structural strength. Rear wheels 25 are installed at both ends of the bottom horizontal frame 34, providing movement power and support, allowing the trolley to move smoothly, thus achieving the stable support and connection function of support component 2. When the trolley is impacted or bumped, support frame 31 is fixed to horizontal frame 1 21, providing a support base for buffer component 3. Spring 32 is installed at the bottom of support frame 31, using elasticity to absorb and buffer impact energy, reducing vibration effects. Damping rod 33 connects to the horizontal frame. At the bottom of the first crossbar 21 and the second crossbar 22, a damping force is generated through a damping mechanism to further buffer the energy consumption and limit the swing amplitude. The bottom crossbar 34 is fixed to the bottom of the damping rod 33 and connected to the bottom of the spring 32 to transmit the buffering force, realizing the effective shock absorption function of the buffer assembly 3. When installing the quick-release assembly 4, the protective sleeve 41 is put on the bracket 1 to protect the bracket 1 and absorb shock. The first limiter 42 and the second limiter 43 are fixed to both ends of the protective sleeve 41, threaded and fixed with bolts 44 to limit the position of the protective sleeve 41. The bolts 44 further fix the limiter and enhance the connection firmness. The mounting bracket 45 is fixed to the bottom of the first limiter 42 and the extension column 46 and the front wheel 47 are installed to provide a stable foundation and connection interface. The extension column 46 increases the height of the mounting bracket 45, and the front wheel 47 provides front support and power. In cooperation with the rear wheel 25, the handcart can move and turn flexibly, realizing the quick installation and disassembly of the quick-release assembly 4, enhancing stability and safety, protecting the bracket 1, extending service life, and improving mobility and multi-functionality.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A handcart traction connector, comprising a bracket (1); Support assembly (2), the support assembly (2) includes a first crossbeam (21) fixedly connected to the bracket (1), and a second crossbeam (22) fixedly connected to the bottom end of the bracket (1), characterized in that: The buffer assembly (3) includes a support frame (31) fixedly connected to the cross frame (21), a spring (32) fixedly connected to the bottom end of the support frame (31), a damping rod (33) rotatably connected to the bottom end of the cross frame (21), and a bottom cross frame (34) fixedly connected to the bottom end of the damping rod (33). The quick-release assembly (4) includes a protective sleeve (41) fitted on the bracket (1). One end of the protective sleeve (41) is fixedly connected to a first limiting bracket (42), and the other end of the protective sleeve (41) is fixedly connected to a second limiting bracket (43). The first limiting bracket (42) has a bolt (44) internally threaded.

2. The handcart traction connector according to claim 1, characterized in that: The top of the bracket (1) is fixedly connected to a top vertical frame (23), and the two ends of the horizontal frame (22) are fixedly connected to cover plates (24).

3. The handcart traction connector according to claim 1, characterized in that: The bottom crossbar (34) is rotatably connected to the two ends of the rear wheel (25), and the top end of the damping rod (33) is rotatably connected to the bottom end of the second crossbar (22).

4. A handcart traction connector according to claim 1, characterized in that: The bottom end of the spring (32) is fixedly connected to the outside of the bottom crossbar (34).

5. A handcart traction connector according to claim 1, characterized in that: The bottom end of the limiting frame (42) is fixedly connected to the mounting frame (45), the top end of the mounting frame (45) is fixedly connected to the extension column (46), and the bottom end of the mounting frame (45) is rotatably connected to the front wheel (47).

6. A handcart traction connector according to claim 1, characterized in that: The outer side of the first limiting frame (42) is threaded onto the second limiting frame (43), and the first limiting frame (42) and the second limiting frame (43) are fixedly connected to both ends of the protective sleeve (41) by bolts (44).

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