Safety chain connecting structure of travel trailer
By adopting universal structural design and process improvements, the problems of poor welding maintainability and lack of aesthetics of the safety chain connection structure of trailer RVs have been solved, and convenient disassembly and interchangeable connection of the safety chain have been achieved, thereby improving production efficiency and customer experience.
Patent Information
- Application Number
- CN202422352560.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The existing safety chain connection structure of trailer-type caravans has the problems of poor welding maintainability, low production efficiency and insufficient aesthetics.
It adopts universal structural design, connects the safety chain and the clamping plate mechanism through riveting, screwing and clamping processes, eliminates the welding process, and uses ratchet and safety hooks made by stamping and overmolding processes to achieve automatic disassembly of the safety chain.
It improves the aesthetics and production efficiency of trailer RVs, improves maintainability and customer comfort, and enables convenient replacement and interchangeable connection of safety chains.
Smart Images
Figure CN223456757U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of house car, more specifically, relate to a safety chain connecting structure of trailer type house car. BACKGROUND
[0002] The trailer type house car is a branch of house car, which is different from the self-propelled house car. The trailer type house car itself has no power and needs an additional vehicle to tow it for driving. According to the different shapes and functions, the trailer type house car can be divided into trailer type A house car, trailer type B house car, trailer type C house car, trailer type D house car, and mobile villa A house car and mobile villa B house car.
[0003] The safety chain connecting structure of the trailer type house car in the market is mostly welded on the A-beam of the trailer type house car. The connecting structure of the safety chain welded on the A-beam of the trailer type house car has poor maintainability, low production efficiency, and is not beautiful. The connecting structure of the safety chain welded on the A-beam of the trailer type house car in the early market has the problems of inconvenient maintenance, low production efficiency, and poor appearance after the welding seam and the safety chain are damaged. Therefore, in order to solve the above problems, it is necessary to provide a safety chain connecting structure of a trailer type house car. SUMMARY
[0004] The technical problem solved by the utility model is to provide a safety chain connecting structure of a trailer type house car, which can solve the problems in the background art.
[0005] To solve the above technical problems, according to one aspect of the utility model, more specifically, a safety chain connecting structure of a trailer type house car, which comprises a clamping plate mechanism subassembly, a ratchet wheel, a trailer type house car A-beam subassembly, a safety chain, a screw, and a safety hook. The clamping plate mechanism subassembly, the ratchet wheel, the trailer type house car A-beam subassembly, the safety chain, and the safety hook are designed with a general structure. The clamping plate mechanism subassembly, the ratchet wheel, and the safety hook are formed into a clamping plate mechanism assembly through a riveting process. The clamping plate mechanism assembly and the trailer type house car A-beam subassembly are fixed together through a screw assembly. The clamping plate mechanism assembly and the safety chain are clamped together to form a trailer type house car A-beam assembly.
[0006] Furthermore, the safety chain is clamped with the ratchet wheel inside the clamping plate mechanism assembly. The ratchet wheel is made of stamping and molding process and plastic packaging process with a general design and a material thickness of 10 mm.
[0007] Further, the A-beam sub-assembly of the trailer house adopts a stamping forming process and a universal design, and the material thickness is 0.7 mm; the clamping plate mechanism assembly, the A-beam sub-assembly of the trailer house, and the screw form the A-beam screw connection sub-assembly of the trailer house through a screwing process; and the A-beam screw connection sub-assembly of the trailer house and the safety chain form the A-beam assembly of the trailer house through a clamping process.
[0008] Further, the safety chain adopts a machining process, a bending ring process, and a universal design, and the material thickness is 13 mm.
[0009] Further, the screw adopts a cold heading process and a universal design, the safety hook adopts a stamping forming process and a plastic packaging process, and a universal design, and the material thickness is 10 mm.
[0010] Further, the safety hook is pushed down, and the safety chain can be automatically detached from the A-beam assembly of the trailer house.
[0011] The safety chain connection structure of the trailer house has the following beneficial effects:
[0012] Through the clamping of the safety chain and the ratchet inside the clamping plate mechanism, the welding seam left after the welding process of the safety chain is avoided, the appearance of the trailer house is improved, the assembly operation is convenient, the production efficiency of the trailer house is improved, the safety chain can be automatically detached from the A-beam of the trailer house after the safety hook is pushed, the maintainability of the trailer house and the comfort of the vehicle are improved;
[0013] Through the universal structure design, the connection mode adopts a screwing process and clamping, the operation is more convenient, the assembly efficiency of the trailer house is improved through the optimization of the safety chain connection structure of the trailer house, the welding seam on the surface of the A-beam of the trailer house is avoided through the cancellation of the welding process of the safety chain, the appearance of the trailer house is better, the comfort of the vehicle is improved, the quality of the trailer house is improved, the safety chain can be automatically detached from the A-beam assembly of the trailer house through the control of the safety hook of the safety chain connection structure of the trailer house, the maintainability of the trailer house is improved, and the structure can meet the interconnection of the safety chain connection structures of different thicknesses of the trailer house. BRIEF DESCRIPTION OF DRAWINGS
[0014] The utility model will be further explained in detail in combination with the drawings and specific implementation methods.
[0015] Fig. 1 It is a whole structure schematic view of the safety chain connection structure of the trailer house.
[0016] Fig. 2 It is a cross-sectional view of the safety chain connection structure of the trailer house.
[0017] Fig. 3 Figure is a schematic diagram of the safety chain, the ratchet wheel and the safety hook connection structure of the safety chain connection structure of the trailer type house car.
[0018] In the figure: 1, the card plate mechanism subassembly; 2, the ratchet wheel; 3, the trailer type house car A letter beam subassembly; 4, the safety chain; 5, the screw; 6, the safety hook. DETAILED DESCRIPTION
[0019] Hereinafter, the utility model will be described in detail with reference to the drawings and in combination with embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.
[0020] As Figs. 1-3 shown, according to one aspect of the utility model, a safety chain connection structure of a trailer type house car is provided, which comprises a card plate mechanism subassembly 1, a ratchet wheel 2, a trailer type house car A letter beam subassembly 3, a safety chain 4, a screw 5 and a safety hook 6. The card plate mechanism subassembly 1, the ratchet wheel 2, the trailer type house car A letter beam subassembly 3, the safety chain 4 and the safety hook 6 all adopt a general structure design. The card plate mechanism subassembly 1, the ratchet wheel 2 and the safety hook 6 form a card plate mechanism assembly through a riveting process. The card plate mechanism assembly and the trailer type house car A letter beam subassembly 3 are fixed together through screw assembly. The card plate mechanism assembly and the safety chain 4 are connected to form a trailer type house car A letter beam assembly. The safety chain 4 and the ratchet wheel 2 inside the card plate mechanism are connected to avoid the weld left after the sheet metal welding process of the safety chain 4, improve the appearance of the trailer type house car, facilitate the assembly operation and improve the production efficiency of the trailer type house car.
[0021] In the embodiment, the safety chain 4 and the ratchet wheel 2 inside the card plate mechanism assembly are connected. The ratchet wheel 2 adopts a stamping forming process and a plastic packaging process, a general design, a selected material thickness of 10 mm. Through the general structure design, the connection mode adopts screwing process, clamping and other modes, which is more convenient to operate.
[0022] In the embodiment, the trailer type house car A letter beam subassembly 3 adopts a stamping forming process, a general design, a selected material thickness of 0.7 mm. The card plate mechanism assembly, the trailer type house car A letter beam subassembly 3 and the screw 5 form a trailer type house car A letter beam screwing subassembly through a screwing process. The trailer type house car A letter beam screwing subassembly and the safety chain 4 form a trailer type house car A letter beam assembly through a clamping process. The connection structure of the trailer type house car safety chain 4 is optimized to improve the assembly efficiency of the trailer type house car.
[0023] In the embodiment, the safety chain 4 adopts a machining, bending and ring forming process, a general design, a selected material thickness of 13 mm. The sheet metal welding process of the safety chain 4 is cancelled to avoid the weld on the surface of the trailer type house car A letter beam, make the trailer type house car more beautiful, improve the comfort of the vehicle for customers and improve the quality of the trailer type house car.
[0024] In the embodiment, the screw 5 adopts a cold heading process and a universal design, the safety hook 6 adopts a stamping forming process and a plastic packaging process, and a universal design is selected with a material thickness of 10 mm. The safety hook 6 controls the safety chain 4 connected structure, the safety chain 4 can be automatically detached from the A-shaped beam assembly of the towed trailer, and the maintainability of the towed trailer is improved. The structure can meet the interconnection of the safety chain 4 connected structure with different thicknesses of the towed trailer.
[0025] In the embodiment, the safety hook 6 is pushed downward, the safety chain 4 can be automatically detached from the A-shaped beam assembly of the towed trailer, and the safety chain can be automatically detached from the A-shaped beam of the towed trailer after the safety hook 6 is pushed. The maintainability and the comfort of the towed trailer are improved.
[0026] The working principle of the device is that a universal structure design is adopted, a screwing process, clamping and other methods are adopted for connection, the operation is more convenient, the total assembly efficiency of the towed trailer is improved through optimization of the safety chain 4 connected structure of the towed trailer, the welding process of the safety chain 4 is cancelled to avoid welds on the surface of the A-shaped beam of the towed trailer, the appearance of the towed trailer is better, the comfort of the towed trailer is improved, the quality of the towed trailer is improved, the safety hook 6 controls the safety chain 4 connected structure of the towed trailer, the safety chain 4 can be automatically detached from the A-shaped beam assembly of the towed trailer, the maintainability of the towed trailer is improved, and the structure can meet the interconnection of the safety chain 4 connected structure with different thicknesses of the towed trailer.
[0027] The electrical components appearing in the text are all existing electrical components.
[0028] Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or replacements made by ordinary skilled in the art within the essential scope of the utility model also belong to the protection scope of the utility model.
Claims
1. A safety chain connecting structure of a trailer house, comprising a clamping plate mechanism subassembly (1), a ratchet wheel (2), a trailer house A-shaped beam subassembly (3), a safety chain (4), a screw (5) and a safety hook (6), characterized in that: The card plate mechanism subassembly (1), ratchet (2), trailer house A-beam subassembly (3), safety chain (4) and safety hook (6) are all designed with universal structure, the card plate mechanism subassembly (1), ratchet (2) and safety hook (6) are formed into a card plate mechanism assembly through riveting process, the card plate mechanism assembly and trailer house A-beam subassembly (3) are fixed together through screw assembly, and the card plate mechanism assembly and safety chain (4) are clamped to form a trailer house A-beam assembly.
2. The safety chain connection structure of a trailerable recreational vehicle according to claim 1, characterized in that: The safety chain (4) is clamped with the ratchet (2) inside the card plate mechanism assembly, the ratchet (2) is designed with stamping forming process and plastic packaging process, and is designed with universal structure with a material thickness of 10 mm.
3. The safety chain connection structure of a trailerable recreational vehicle of claim 2, wherein: The trailer house A-beam subassembly (3) is designed with stamping forming process and universal structure with a material thickness of 0.7 mm, the card plate mechanism assembly, trailer house A-beam subassembly (3) and screw (5) are formed into a trailer house A-beam screw connection subassembly through screwing process, and the trailer house A-beam screw connection subassembly and safety chain (4) are formed into a trailer house A-beam assembly through clamping process.
4. The safety chain connection structure of a trailerable recreational vehicle according to claim 3, characterized in that: The safety chain (4) is designed with machining and bending ring process, and is designed with universal structure with a material thickness of 13 mm.
5. The safety chain connection structure of a travel trailer according to claim 1, characterized in that: The screw (5) is designed with cold heading process and universal structure, the safety hook (6) is designed with stamping forming process and plastic packaging process, and is designed with universal structure with a material thickness of 10 mm.
6. The safety chain connection structure of a travel trailer according to claim 1, characterized in that: The safety hook (6) is pushed down, and the safety chain (4) can be automatically detached from the trailer house A-beam assembly.