Modularized frame structure of travel trailer

Abstract

The utility model discloses a modular frame structure of a trailer, and particularly relates to the field of automobiles, the modular frame structure comprises a first module, a fifth module and a sixth module are respectively in bolted connection with two sides of the first module, a second module is in bolted connection with one side, close to the first module, between the fifth module and the sixth module, and a ninth module is in bolted connection with one side of the second module. The second module is in bolted connection with eighth modules on the two sides of the ninth module, a twelfth module is in bolted connection between the eighth modules and the ninth module, and the two ends of the twelfth module are in bolted connection with the fifth module and the sixth module respectively. The modules are connected through high-strength bolts, the frame is small in deformation and easy and convenient to operate, different combinations of the modules can be switched, free production switching of an intelligent touring car system and a non-intelligent touring car system can be achieved, assembly tool development cost and tool switching time are saved, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, and more specifically, to a modular frame structure for a towed caravan. Background Technique

[0002] The frame assembly of a towed caravan is an important part of the towed caravan. It bears the body and interior furniture, and directly affects the service life and driving performance of the vehicle. The frame assembly generally consists of components such as a towing system, a frame, a suspension system, a braking system, and tires. Among them, the tractor connects the towed caravan and the towing vehicle, and the strength and rigidity of the frame are the key factors for the service life of the vehicle. The suspension system is responsible for supporting the driving attitude of the vehicle and buffering the impact force of the road surface, affecting the driving stability and safety. The braking system and tires also have important impacts on the driving safety, passability, and comfort respectively.

[0003] The frame assembly of the existing model towed caravan adopts a welded connection mode. Different models need to switch welding tooling, resulting in low production efficiency and high costs. Therefore, in order to save development costs and improve production efficiency, it is very necessary to have a modular frame structure for a towed caravan. Summary of the Utility Model

[0004] The main technical problem to be solved by the utility model is to provide a modular frame structure for a towed caravan, which can solve the problems raised in the above background technique.

[0005] To solve the above technical problem, according to one aspect of the utility model, more specifically, it is a modular frame structure for a towed caravan, including Module 1. Module 5 and Module 6 are respectively bolted to both sides of Module 1. Module 2 is bolted to the side of Module 5 and Module 6 close to Module 1. Module 9 is bolted to one side of Module 2. Module 8 is bolted to both sides of Module 2. Module 12 is bolted between the two Module 8 and Module 9. The two ends of Module 12 are respectively bolted to Module 5 and Module 6. Module 3 is bolted to one side of the two Module 8 and Module 9. Two Module 10 and Module 11 are bolted to one side of Module 3, and Module 4 is bolted through the two Module 10 and Module 11. Both Module 3 and Module 4 are bolted between Module 5 and Module 6. Module 7 is bolted to one side of Module 5 and Module 6.

[0006] Furthermore, Module 1 is a pull rod assembly structure module, which is used to install a trailer hitch and a lifting guide wheel, and is bolted to the vehicle. Module 2 is a water tank installation assembly structure module, which is used to carry the water tank installation. When manufacturing Module 1 and Module 2, bending sheet metal and welding connections are mainly used.

[0007] Furthermore, Module 3 is the middle crossbeam assembly structure module of the vehicle frame, mainly bearing the installation of the front motor mount. When manufacturing Module 3, bending sheet metal and welding connections are mainly used.

[0008] Furthermore, Module 4 is the battery pack installation assembly structure module, mainly bearing the installation of the battery pack, as well as the installation of shock absorbers, air pipes, and air pumps. When manufacturing Module 4, bending sheet metal and welding connections are mainly used. Module 4 can be realized by adjusting the distance between the left and right longitudinal beam mounting holes according to the size of different battery packs.

[0009] Furthermore, Module 5 and Module 6 are the left and right longitudinal beam assemblies, mainly bearing the weight of the upper part of the RV and the installation of the chassis air suspension and support legs. When manufacturing Module 5 and Module 6, bending sheet metal and welding connections are mainly used. Module 5 and Module 6 adopt a C-shaped beam structure design and are roll-formed.

[0010] Furthermore, Module 7 is the rear crossbeam of the vehicle frame, and Module 8 is the electronic control installation crossbeam assembly, mainly bearing the installation of the electronic control system. When manufacturing Module 7 and Module 8, bending sheet metal and welding connections are mainly used.

[0011] Furthermore, Module 9 is the multi-in-one installation assembly, mainly bearing the installation of the multi-in-one. Module 10 is the high-voltage wire harness installation crossbeam assembly, mainly bearing the installation of the motor high-voltage wire harness. When manufacturing Module 9 and Module 10, bending sheet metal and welding connections are mainly used.

[0012] Furthermore, Module 11 is the low-voltage wire harness installation crossbeam, mainly bearing the installation of the low-voltage wire harness. Module 12 is the suspension installation crossbeam assembly, mainly bearing the installation of the suspension swing arm. When manufacturing Module 11 and Module 12, bending sheet metal and welding connections are mainly used.

[0013] The beneficial effects of a modular vehicle frame structure for a towed RV of the present utility model are as follows:

[0014] This structure adopts a highly modular and generalized structure design, reducing the development cost. The modules are connected by high-strength bolts, with small frame deformation, simple operation, and different combinations can be switched between modules. It can realize the free production switching between intelligent RV systems and non-intelligent RV fast systems, saving the development cost of the assembly tooling and the tooling switching time, and improving the production efficiency.

[0015] By using high-strength bolts to connect the vehicle frame, it can be freely combined, improving the flexibility of the vehicle expansion, saving the tooling development cost. Each module can be assembled after individual electrophoresis, reducing the transportation cost and production cost. Module Five and Module Six adopt the C-beam structure design and are roll-formed. Different lengths can be cut according to the requirements of different vehicle models without developing new molds. The position of the tie rod can freely adjust the vehicle length through the opening position. The main beam of the intelligent RV frame adopts the C-beam structure form and is made of high-strength steel material, reducing the vehicle weight by 15% and achieving the purpose of lightweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the drawings and specific implementation methods.

[0017] Figure 1 FIG. is a schematic diagram of the overall structure of a modular frame structure of a towed RV according to the present invention;

[0018] Figure 2 FIG. is a schematic cross-sectional view of the connection between the tie rod assembly and the left and right longitudinal beam assemblies of a modular frame structure of a towed RV according to the present invention;

[0019] Figure 3 FIG. is a schematic cross-sectional view of the connection between the water tank installation assembly and the left and right longitudinal beam assemblies of a modular frame structure of a towed RV according to the present invention;

[0020] Figure 4 FIG. is a schematic cross-sectional view of the connection between the middle cross beam assembly of the frame and the left and right longitudinal beam assemblies of a modular frame structure of a towed RV according to the present invention;

[0021] Figure 5 FIG. is a schematic cross-sectional view of the connection between the battery pack installation assembly and the left and right longitudinal beam assemblies of a modular frame structure of a towed RV according to the present invention;

[0022] Figure 6 FIG. is a schematic cross-sectional view of the connection between the rear cross beam of the frame and the left and right longitudinal beam assemblies of a modular frame structure of a towed RV according to the present invention;

[0023] Figure 7 FIG. is a schematic cross-sectional view of the connection between the suspension installation cross beam assembly and the left and right longitudinal beam assemblies of a modular frame structure of a towed RV according to the present invention.

[0024] In the figure: 1. Module One; 2. Module Two; 3. Module Three; 4. Module Four; 5. Module Five; 6. Module Six; 7. Module Seven; 8. Module Eight; 9. Module Nine; 10. Module Ten; 11. Module Eleven; 12. Module Twelve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0026] As Figure 1-7 shown, according to one aspect of the present utility model, there is provided a modular frame structure for a towed caravan, including module one 1. On both sides of module one 1, module five 5 and module six 6 are respectively bolted. On the side close to module one 1 between module five 5 and module six 6, module two 2 is bolted. On one side of module two 2, module nine 9 is bolted. On both sides of module nine 9 of module two 2, module eight 8 is bolted. Between the two module eight 8 and module nine 9, module twelve 12 is bolted. The two ends of module twelve 12 are respectively bolted to module five 5 and module six 6. On one side of the two module eight 8 and module nine 9, module three 3 is bolted. On one side of module three 3, two module ten 10 and module eleven 11 are bolted and module four 4 is bolted through the two module ten 10 and module eleven 11. Both module three 3 and module four 4 are bolted between module five 5 and module six 6. On one side of module five 5 and module six 6, module seven 7 is bolted. By adopting a highly modular and generalized structural design, the development cost is reduced. The modules are connected by high-strength bolts. The frame has a small deformation amount, simple operation, and different combinations can be switched between the modules, realizing the free production switching between the intelligent caravan system and the non-intelligent caravan system, saving the development cost of the assembly tooling and the tooling switching time, and improving the production efficiency.

[0027] In this embodiment, module one 1 is a drawbar assembly structure module for installing a trailer hitch and a lifting guide wheel and is bolted to the vehicle. Module two 2 is a water tank installation assembly structure module for carrying the water tank installation. When manufacturing module one 1 and module two 2, bending sheet metal and welding connections are mainly used. Module one 1 and module five 5 adopt a high-strength bolt fastening connection structure, with a left-right symmetrical layout and a connection method of X-direction and Y-direction triangular support structure layout on the left and right, improving the frame strength and torsional stiffness.

[0028] In this embodiment, module three 3 is a frame middle crossbeam assembly structure module mainly for carrying the front motor mount. When manufacturing module three 3, bending sheet metal and welding connections are mainly used. Module two 2 and module five 5 adopt a 7-high-strength bolt connection structure, with a left-right symmetrical layout, improving the overall stability.

[0029] In this embodiment, Module 4 is the battery pack installation assembly structure module, which mainly bears the installation of the battery pack, as well as the installation of shock absorbers, air pipes, and air pumps. When manufacturing Module 4, bending sheet metal and welding connections are mainly used. Module 4 can adjust the distance between the left and right longitudinal beam mounting holes according to the size of different battery packs. Module 3 and Module 5 adopt a high-strength bolt connection structure, which mainly bears the installation of the motor front mount and strengthens the torsional strength of the whole vehicle.

[0030] In this embodiment, Module 5 and Module 6 are the left and right longitudinal beam assemblies, which mainly bear the weight of the upper body of the RV and the installation of the chassis air suspension and support legs. When manufacturing Module 5 and Module 6, bending sheet metal and welding connections are mainly used. Module 5 and Module 6 adopt a C-shaped beam structure design and are roll-formed. Module 4 and Module 5 adopt a high-strength bolt connection structure, which mainly bears the installation of the battery pack, shock absorbers, air pipes, air pumps, etc.

[0031] In this embodiment, Module 7 is the rear cross beam of the frame, and Module 8 is the electronic control installation cross beam assembly, which mainly bears the installation of the electronic control system. When manufacturing Module 7 and Module 8, bending sheet metal and welding connections are mainly used. Module 7 and Module 5 adopt a high-strength bolt connection structure, which mainly plays a role in torsional and anti-collision strengthening.

[0032] In this embodiment, Module 9 is the multi-in-one installation assembly, which mainly bears the installation of the multi-in-one. Module 10 is the high-voltage wire harness installation cross beam assembly, which mainly bears the installation of the motor high-voltage wire harness. When manufacturing Module 9 and Module 10, bending sheet metal and welding connections are mainly used. Module 12 and Module 5 and Module 6 adopt a high-strength bolt connection structure, which mainly bears the installation of the suspension swing arm and torsional strengthening.

[0033] In this embodiment, Module 11 is the low-voltage wire harness installation cross beam, which mainly bears the installation of the low-voltage wire harness. Module 12 is the suspension installation cross beam assembly, which mainly bears the installation of the suspension swing arm. When manufacturing Module 11 and Module 12, bending sheet metal and welding connections are mainly used. Module 8 and Module 3 mainly bear the installation of the electronic control system to ensure strong structure.

[0034] The working principle of this device is as follows: The frame is connected by high-strength bolts, which can be freely combined, improving the flexibility of the whole vehicle expansion and saving the tooling development cost. Each module can be assembled after individual electrophoresis, reducing the transportation cost and production cost. Module 5 and Module 6 adopt a C-shaped beam structure design and are roll-formed. Different lengths can be cut according to the requirements of different vehicle models without developing new molds. The position of the tie rod can freely adjust the length of the whole vehicle through the opening position. The intelligent RV frame girder adopts a C-shaped beam structure form and high-strength steel materials, reducing the weight of the whole vehicle by 15% and achieving the purpose of lightweight.

[0035] All electrical components mentioned in this text are electrical components that exist in reality.

[0036] Of course, the above description is not a limitation to the present utility model, and the present utility model is not limited to the above examples either. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the substantial scope of the present utility model also fall within the protection scope of the present utility model.

Claims

1. A modular frame structure for a towed caravan, comprising Module 1 (1), characterized in that: The two sides of the module one (1) are respectively bolted to the module five (5) and the module six (6), the module two (2) is bolted to the module five (5) and the module six (6) on the side close to the module one (1), the module two (2) is bolted to the module nine (9) on one side, the module two (2) is bolted to the module eight (8) on both sides of the module nine (9), the two modules eight (8) and the module nine (9) are bolted to the module twelve (12), the two ends of the module twelve (12) are respectively bolted to the module five ( 5) and module six (6) are bolted together, two of the modules eight (8) and module nine (9) are bolted together with module three (3) on one side, the module three (3) is bolted together with two modules ten (10) and module eleven (11) and is bolted together with module four (4) through two modules ten (10) and module eleven (11), the modules three (3) and module four (4) are bolted together between module five (5) and module six (6), and the modules five (5) and module six (6) are bolted together with module seven (7) on one side.

2. The modular frame structure of a towed caravan according to claim 1, characterized in that: The module one (1) is a pull rod assembly structure module, which is used to install a trailer hook and a lifting guide wheel, and is bolted to the vehicle. The module two (2) is a water tank installation assembly structure module, which is used to support the installation of the water tank. The module one (1) and the module two (2) are mainly made of bending sheet metal and welding connection.

3. The modular frame structure of a towed caravan according to claim 2, characterized in that: The module three (3) is a crossbeam assembly structural module in the frame, which mainly supports the front suspension installation of the motor. The module three (3) is mainly made by bending sheet metal and welding connection.

4. The modular frame structure of a towed caravan according to claim 3, characterized in that: The module four (4) is a battery pack installation assembly structural module, which is mainly used for the installation of the battery pack, as well as the installation of the shock absorber, the air pipe, and the air pump. The module four (4) is mainly made by bending sheet metal and welding connection. The module four (4) can be realized by adjusting the distance between the left and right longitudinal beam installation holes according to different battery pack sizes.

5. The modular frame structure of a towed caravan according to claim 4, wherein: The module five (5) and the module six (6) are left and right longitudinal beam assemblies, which mainly bear the weight of the RV upper body and the installation of the chassis air suspension and the support legs. The module five (5) and the module six (6) are mainly made by bending sheet metal and welding connection. The module five (5) and the module six (6) adopt a C-beam structure design and are formed by roll forming.

6. The modular frame structure of a towed caravan according to claim 5, characterized in that: The module seven (7) is the rear cross beam of the vehicle frame, and the module eight (8) is the electronic control installation cross beam assembly, which mainly supports the installation of the electronic control system. The module seven (7) and the module eight (8) are mainly made by bending sheet metal and welding connection.

7. A modular frame structure for a towed caravan according to claim 6, characterized in that: The module nine (9) is an all-in-one installation assembly, which mainly supports the all-in-one installation. The module ten (10) is a high-voltage wire harness installation beam assembly, which mainly supports the installation of the motor high-voltage wire harness. The module nine (9) and the module ten (10) are mainly made by bending sheet metal and welding connection.

8. A modular frame structure for a towed caravan according to claim 7, characterized in that: The module eleven (11) is a low-voltage wiring harness installation crossbeam, which mainly bears the installation of the low-voltage wiring harness. The module twelve (12) is a suspension installation crossbeam assembly, which mainly bears the installation of the suspension swing arm. When manufacturing the module eleven (11) and the module twelve (12), bending sheet metal and welding connection are mainly used.

Images