Universal combined draw bar

Abstract

The utility model relates to a universal combined draw bar, and belongs to the technical field of draw bars. The draw bar is flexible in length adjustment, high in adaptability, convenient and fast to assemble and small in containing space. The traction rod is composed of a traction ring, a first rod body, a second rod body and a plug-in type universal joint. Wherein the traction ring is connected with one ends of the two first rod bodies to form a forked structure; the other ends of the two first rod bodies are detachably connected with one ends of the two second rod bodies respectively, and the other ends of the second rod bodies are connected with universal joints. Through detachable connection of the first rod body and the second rod body and the design that the middle rod body can be increased or decreased, the length of the traction rod can meet traction requirements in different scenes. Meanwhile, the rod body is easy and convenient to assemble, small in occupied space during storage and convenient to store and manage. Due to the design of the forked structure, stable stress distribution can be formed when the traction rod is connected with the tractor and the body to be towed, and the safety in the traction process is improved.

Description

Technical Field

[0001] This utility model belongs to the field of tow bar technology, and specifically relates to a general-purpose combined tow bar. Background Technology

[0002] Drawbars are widely used in transportation, engineering construction, and other fields, serving as key components for connecting vehicles or equipment and transmitting power. In road transport, a tractor unit and the vehicle to be towed are connected via a drawbar to transport goods; in construction projects, excavators, loaders, and other equipment often utilize drawbars in conjunction with trailers to move equipment.

[0003] Most commonly used tow bars are one-piece structures that cannot be disassembled or reassembled. Furthermore, existing tow bars are mostly straight rods, a design that prevents them from branching, making them inadequate in situations requiring multiple tow bars to operate simultaneously. This is particularly problematic when there is a speed difference or directional deviation between the towing vehicle and the vehicle being towed, as multiple straight tow bars cannot bear even force simultaneously. This uneven force distribution can easily lead to excessive pressure or tension on the tow bars, resulting in serious consequences such as tow bar breakage or vehicle damage. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a universal modular tow bar. Because the first and second rods are detachably connected, the assembly of the rods is simple and convenient, and it occupies little space when stored. Furthermore, the forked structure of the tow ring ensures a stable force distribution when connecting the towing vehicle to the object being towed.

[0005] The technical solution adopted to solve the above technical problems is: a general-purpose combined traction rod, including a traction ring, a first rod body, a second rod body, and a universal joint. The traction ring is connected to one end of the two first rod bodies, and the other end of the two first rod bodies is detachably connected to one end of the two second rod bodies respectively. The other end of the two second rod bodies is connected to a universal joint respectively.

[0006] In some embodiments, the traction ring is provided with a fixed post and a hinged post, wherein the fixed post is connected to one end of a first rod and the hinged post is connected to one end of another first rod.

[0007] In some embodiments, an intermediate rod is further included, one end of which is detachably connected to the other end of the first rod, and the other end of which is detachably connected to one end of the second rod, thereby enabling the other ends of the two first rods to be detachably connected to one end of the two second rods respectively.

[0008] In some embodiments, the device further includes a slot row, which has slots for engaging the first rod and the second rod.

[0009] In some embodiments, the other ends of the two first rods are detachably connected to one end of the two second rods, specifically: the other end of the first rod is provided with a pin hole, and one end of the second rod is provided with a pin shaft. When the other end of the first rod is inserted into one end of the second rod, the pin shaft passes through the pin hole on the first rod, thereby achieving a detachable connection.

[0010] In some embodiments, the universal joint is a plug-in universal joint.

[0011] In some embodiments, there are multiple intermediate rods, and the multiple intermediate rods can be detachably connected sequentially to form an extended rod structure; one end of the extended rod structure is detachably connected to the other end of the first rod, and the other end is detachably connected to one end of the second rod.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model relates to a universal modular tow bar. Through the detachable connection between the first and second tow bars, and the design of adding or removing intermediate tow bars, the length of the tow bar can be flexibly adjusted according to actual needs. This design not only meets the towing requirements in different scenarios but also greatly improves the adaptability and practicality of the tow bar. Furthermore, the tow bars are easy and convenient to assemble, occupy little space when stored, and are convenient for storage and management.

[0014] The traction ring of this invention is connected to two first rods to form a forked structure. This design allows the traction rod of this invention to form a stable force distribution when connecting the tractor vehicle and the vehicle to be towed. During the towing process, each rod can bear the tension more evenly, effectively avoiding traction rod breakage or vehicle damage caused by uneven force distribution, and improving the safety of the towing process.

[0015] The universal joint of this invention allows the entire drawbar to adapt to different angles of traction. Whether in straight or curved traction, the universal joint can flexibly adjust the angle of the drawbar to ensure smooth traction. This design not only improves the flexibility of the drawbar but also expands its application range. Attached image description:

[0016] Figure 1 This is a schematic diagram of the overall structure of the general-purpose combined traction rod of this utility model;

[0017] Figure 2 This is a schematic diagram of the general-purpose combined traction rod of this utility model, which is connected to an intermediate rod.

[0018] Figure 3 This is a schematic diagram of the general-purpose combined traction rod storage of this utility model;

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

[0020] Figure 5 This is a schematic diagram of the traction ring structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the universal joint structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the connection structure between the plug-in universal joint and the tractor slot of this utility model;

[0023] Figure 8 This is a schematic diagram illustrating the application scenario of the general-purpose combined traction rod of this utility model.

[0024] Among them, 1. Towing ring; 11. Fixed column; 12. Hinge column; 21. First rod body; 211. Pin hole; 221. Pin shaft; 22. Second rod body; 23. Intermediate rod body; 3. Insert-type universal joint; 31. Insert plate; 32. Insert hole; 4. Slot row; 5. Towing vehicle; 51. Slot; 52. Hand-tightened bolt; 6. Towed body. Specific implementation plan:

[0025] The following is combined Figures 1 to 8 The technical solution provided by this utility model will be described in more detail.

[0026] See Figure 1 , Figure 2 , Figure 5 , Figure 6 This utility model provides a universal combined tow bar, including a tow ring 1, a first rod body 21, a second rod body 22, and a universal joint. The tow ring 1 is connected to one end of the two first rod bodies 21, and the other end of each of the two first rod bodies 21 is detachably connected to one end of each of the two second rod bodies 22. The other ends of the two second rod bodies 22 are respectively welded, threaded, plug-in, or integrally connected with a universal joint. The universal joint can be a cross-type universal joint, a ball cage type universal joint, or a plug-in type universal joint 3, etc.

[0027] The aforementioned detachable connection is specifically as follows: a pin hole 211 is provided on the other end of the first rod 21, and a pin 221 is provided on one end of the second rod 22. When the other end of the first rod 21 is inserted into one end of the second rod 22, the detachable connection is achieved by passing the pin 221 through the pin hole 211 on the first rod 21.

[0028] See Figure 5In some embodiments, the traction ring 1 is provided with a fixed post 11 and a hinge post 12, wherein the fixed post 11 is welded to one end of a first rod 21, threadedly connected, plugged in or integrally connected, and the hinge post 12 is welded to one end of another first rod 21, threadedly connected, plugged in or integrally connected.

[0029] See Figure 2 , Figure 4 In some embodiments, an intermediate rod 23 is also included, one end of which is detachably connected to the other end of the first rod 21, and the other end of which is detachably connected to one end of the second rod 22. This detachable connection is also achieved through a pin 221 and a pin hole 211.

[0030] Furthermore, the intermediate rod 23 is not limited to a single use, but can also consist of multiple rods. Multiple intermediate rods 23 can be detachably connected sequentially to form an extended rod structure as needed. The extended rod structure is positioned between the first rod 21 and the second rod 22, with one end detachably connected to the other end of the first rod 21 and the other end detachably connected to one end of the second rod 22. This design allows the length of the traction rod to be flexibly adjusted according to actual needs, greatly improving its practicality and adaptability.

[0031] See Figure 3 In some embodiments, a slot row 4 is also included, which is provided with slots for engaging the first rod 21 and the second rod 22.

[0032] Before use, the first rod 21, the second rod 22, and the intermediate rod 23 (if necessary) of this utility model can be removed from the slot row 4. The slot row 4 is provided with slots for securing the first rod 21, the second rod 22, and possibly the intermediate rod 23, ensuring that they can be stored securely when not in use, without taking up too much space, and are easy to access.

[0033] After removing the rods, the next step is to connect them. Since one end of each of the two first rods 21 is already connected to the traction ring 1 (one fixed and the other hinged to accommodate different traction needs), simply insert the other end of the first rod 21 into one end of the second rod 22, allowing the pin 221 to pass through the pin hole 211 on the first rod 21 to connect the first rod 21 and the second rod 22.

[0034] If a longer traction distance is required, one or more intermediate rods 23 can be added in the middle. One end of the intermediate rod 23 is detachably connected to the other end of the first rod 21, and the other end is detachably connected to one end of the second rod 22, also through a pin 221 and a pin hole 211.

[0035] After connecting the rod body, the next step is to hang the traction ring 1 on the... Figure 8 The towing ring 1 is designed to be securely connected to the towing body 6, ensuring the effective transmission of traction force.

[0036] Finally, connect the universal joint to the tractor unit 5. The specific connection method can be flexibly adjusted according to the different types of universal joints selected and the actual situation of the tractor unit. For example: when using... Figure 7 When using the insert-type universal joint 3 as shown, the insert plate 31 of the insert-type universal joint 3 can be inserted into the corresponding slot 51 on the tractor vehicle 5, and the hand-tightening bolt 52 can be screwed into the insertion hole 32 to ensure a secure connection between the universal joint and the tractor vehicle. Alternatively, if the tractor vehicle 5 is equipped with a towing hook, the insertion hole 32 can be directly hooked onto the towing hook for a quick and convenient connection.

[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A universal combination draw bar characterized by: The traction ring (1) is connected with one end of two first rods (21), the other end of the two first rods (21) is respectively detachably connected with one end of two second rods (22), and the other end of the two second rods is respectively connected with a universal joint; Further comprising an intermediate rod (23), one end of the intermediate rod (23) is detachably connected with the other end of the first rod (21), and the other end of the intermediate rod (23) is detachably connected with one end of the second rod (22), so as to realize detachable connection.

2. The universal combination tow bar of claim 1, wherein: The traction ring (1) is provided with a fixed column (11) and a hinged column (12), wherein the fixed column (11) is connected with one end of a first rod (21), and the hinged column (12) is connected with one end of another first rod (21).

3. The universal combination tow bar of claim 1, wherein: Further comprising a clamping groove row (4), the clamping groove row (4) is provided with a clamping groove, and the clamping groove is used for clamping the first rod (21) and the second rod (22).

4. The universal combination tow bar of claim 1, wherein: The other end of the two first rods (21) is respectively detachably connected with one end of the two second rods (22), specifically: the other end of the first rod (21) is provided with a pin hole, one end of the second rod (22) is provided with a pin shaft, when the other end of the first rod (21) is inserted into one end of the second rod (22), the pin shaft is inserted through the pin hole of the first rod (21), so as to realize detachable connection.

5. The universal combination tow bar of claim 1, wherein: The universal joint is a plug-in universal joint (3).

6. The universal combination tow bar of claim 1, wherein: The intermediate rod (23) is a plurality of, and the plurality of intermediate rods (23) are detachably connected in sequence front and back to form an extended rod structure; one end of the extended rod structure is detachably connected with the other end of the first rod (21), and the other end is detachably connected with one end of the second rod (22).

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