Dragon Claw Tow Hook
By combining the one-piece forged dragon claw trailer hook with the alloy steel pin shaft, the problems of insufficient tensile strength and complicated installation of the trailer device are solved, achieving an efficient, safe and aesthetically pleasing trailer solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO MIHONG MASCH CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-03
AI Technical Summary
Existing trailer trailers have low tensile strength, are prone to deformation and breakage, and are cumbersome to install and affect the vehicle's appearance, making it difficult to meet the needs of efficient rescue and personalized design.
The dragon claw trailer hook, formed by one-piece forging, is combined with an alloy steel pin and equipped with a torsion spring driven spring tongue and groove embedded structure to achieve quick installation and automatic locking. The pin and anti-theft nut design ensures high strength and anti-theft performance.
It offers high tensile strength, quick installation, and aesthetic compatibility, ensuring efficient rescue capabilities under extreme conditions while preventing trailer hitch theft, simplifying the installation process, and enhancing user convenience and vehicle appearance.
Smart Images

Figure CN224447370U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of trailer hook technology, specifically relating to a dragon claw trailer hook. Background Technology
[0002] With the increasing popularity of private cars and the diversification of consumers' needs for automotive functions, off-road vehicles have become a market hotspot due to their excellent passability. However, the problems of getting stuck and tire blowouts have also placed higher demands on rescue equipment. Existing towing devices generally suffer from low tensile strength, are prone to deformation and breakage, and have complicated installation processes that often require additional tools or vehicle body modifications. This affects both ease of use and vehicle aesthetics, making it difficult to meet users' dual needs for efficient rescue and personalized design. Therefore, there is an urgent need for a new type of towing device that combines high tensile strength, quick installation, and aesthetic adaptability. Utility Model Content
[0003] The present invention aims to provide a dragon claw trailer hook to solve the technical problems of low tensile strength and inconvenient installation of existing trailer hooks.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] The dragon claw tow hook includes a tow hook body. A spring tongue is provided at the opening of the tow hook body. One end of the spring tongue is pivotally connected to the tow hook body via a rivet. A torsion spring is provided on the rivet. The torsion spring acts on the spring tongue, forcing the other end of the spring tongue to abut against the inner wall of the tow hook body.
[0006] The hook body has two connecting arms at the hook tail, forming a trailer arm mounting area between the two connecting arms. The two connecting arms have corresponding pin holes, and pins are inserted into the pin holes of the two connecting arms. The two ends of the pins are provided with external threads and are threaded with anti-theft nuts.
[0007] Furthermore, the inner wall of the tow hook body is provided with a groove, and when the spring tongue is rotated around the rivet into the tow hook body by an external force, the spring tongue can be completely embedded in the groove.
[0008] Furthermore, the tow hook body and connecting arm adopt an integral forging structure.
[0009] Furthermore, the anti-theft nut has a screw hole, in which an anti-theft screw is installed.
[0010] Furthermore, the pin is made of alloy steel.
[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: The dragon claw tow hook provided by this utility model completely solves the problems of low tensile strength and easy deformation and breakage of existing devices by combining the tow hook body and connecting arm with an alloy steel pin shaft through an integral forged tow hook body and connecting arm. It can stably withstand high-load traction in extreme off-road scenarios. At the same time, it innovatively adopts a torsion spring driven spring tongue and groove embedded structure to realize instantaneous automatic locking and releasing of the tow rope. The embedded design avoids interference with the mounting equipment and significantly expands the range of applicability. In addition, through the modular design of the pin shaft passing through the connecting arm and the double anti-theft locking (anti-theft nut and anti-theft screw), the installation can be completed simply by aligning the holes, inserting the pin shaft and tightening the nut. The entire process is tool-free, shortens the installation time, and effectively prevents theft. Finally, while ensuring ultra-high strength and rapid rescue capability, it also takes into account the vehicle's aesthetics and user convenience, comprehensively solving the industry pain points of "insufficient tensile strength, cumbersome installation, and damage to appearance due to modification" of traditional towing devices. Attached Figure Description
[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0013] Figure 1 This is an isometric view of the dragon claw trailer hook of this utility model;
[0014] Figure 2 This is an exploded view of the dragon claw trailer hook of this utility model;
[0015] Figure 3 This is a schematic diagram of the auger trailer hook structure after the spring tongue is removed. Detailed Implementation
[0016] 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.
[0017] The present invention will be further described in detail below with reference to the embodiments.
[0018] like Figure 1-3 As shown, a specific embodiment of the dragon claw trailer hook provided by this utility model is as follows:
[0019] The dragon claw tow hook includes a tow hook body 1. A spring tongue 2 is provided at the opening of the tow hook body 1. One end of the spring tongue 2 is pivotally connected to the tow hook body 1 via a rivet 3. A torsion spring is provided on the rivet 3. The torsion spring acts on the spring tongue 2, forcing the other end of the spring tongue 2 to abut against the inner wall of the tow hook body 1, forming a self-locking structure.
[0020] Two connecting arms 4 extend symmetrically from the hook tail of the tow hook body 1, forming a trailer arm mounting area between the two connecting arms 4. Pin holes 5 are correspondingly opened on the two connecting arms 4, and pins 6 are inserted through the pin holes 5 of the two connecting arms 4. The two ends of the pins 6 are provided with external threads and are threaded to anti-theft nuts 7, forming a detachable fixing structure. Preferably, the pins 6 are made of alloy steel, which has the characteristics of high strength and wear resistance. Screw holes 8 can also be opened on the anti-theft nuts 7, and anti-theft screws 9 can be installed in the screw holes 8 to form an anti-theft mechanism, making the use of the tow hook safer.
[0021] Additionally, a groove 10 can be formed on the inner wall of the tow hook body 1 (such as...). Figure 3 As shown, when the spring tongue 2 is rotated around the rivet 3 into the tow hook body 1 by an external force, the spring tongue 2 can be completely embedded in the groove 10. This design allows the groove 10 to accommodate the spring tongue 2, which significantly increases the compatibility range of the mounting device.
[0022] The tow hook body 1 and the connecting arm 4 adopt an integrated forging structure. Compared with other welding processes, this structure has higher tensile strength and rigidity, and can withstand high-load traction in extreme off-road scenarios.
[0023] When using the dragon claw trailer hook of this embodiment, first place the trailer arm in the trailer arm installation area between the two connecting arms 4, ensuring that the pin hole 5 corresponds to the hole on the trailer arm. Then, insert the pin 6 into the pin hole 5 and the hole on the trailer arm, screw the anti-theft nut 7 into both ends of the pin 6 until it is tight, and then install the anti-theft screw 9 into the screw hole 8 and tighten it slightly with a hex wrench.
[0024] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fifth wheel hitch characterized by: Includes a tow hook body, with a spring tongue at the opening of the tow hook body. One end of the spring tongue is pivotally connected to the tow hook body via a rivet. A torsion spring is provided on the rivet, and the torsion spring acts on the spring tongue, forcing the other end of the spring tongue to abut against the inner wall of the tow hook body. The hook body has two connecting arms at the hook tail, forming a trailer arm mounting area between the two connecting arms. The two connecting arms have corresponding pin holes, and pins are inserted into the pin holes of the two connecting arms. The two ends of the pins are provided with external threads and are threaded with anti-theft nuts.
2. The claw trailer coupling of claim 1, wherein: The inner wall of the tow hook body is provided with a groove. When the spring tongue is rotated around the rivet into the tow hook body by external force, the spring tongue can be completely embedded in the groove.
3. The claw trailer coupling of claim 1, wherein: The tow hook body and connecting arm adopt an integral forging structure.
4. The claw trailer coupling of claim 1, wherein: The anti-theft nut has a screw hole, and an anti-theft screw is installed in the screw hole.
5. The dragon claw trailer hook according to any one of claims 1-4, characterized in that: The pin is made of alloy steel.