A camper van

Abstract

The application provides a camping vehicle, which comprises a front frame and a rear frame, front and rear cross frames are arranged on the front frame and the rear frame respectively, and upper and lower folding frames are arranged on both sides of the front frame and the rear frame respectively, characterized in that the upper folding frame comprises an upper bending frame connected with the front frame, the lower folding frame comprises a lower bending frame connected with the front frame, the upper bending frame and the lower bending frame each comprise a front frame section and a rear frame section, the front frame section is connected with the front frame, a space is arranged between the front frame section and the rear frame section, and the front frame section and the rear frame section are rotationally connected through a bending assembly, and elastic cloth is arranged on the upper folding frame.

Description

Technical Field

[0001] This invention relates to the field of push-pull vehicle technology, and particularly to a campervan. Background Technology

[0002] Campervans are a relatively new type of leisure and travel vehicle in recent years. As the name suggests, campervans are used to transport camping equipment to outdoor campsites, and therefore have a considerable capacity to carry camping gear. For example, Chinese patent document application number 2022117021692 discloses such a campervan, where installing fabric on the frame and railings creates an open storage space facing upwards. Users can either pull the campervan forward using a lever assembly or push it forward using a handle assembly. When the campervan is loaded with heavy items, it is generally moved forward using the lever assembly.

[0003] Currently, all campervans on the market only have a folding function for their frames; that is, the frame is folded when the vehicle is folded up. They lack the ability to bend while moving forward, which makes the campervans less maneuverable and makes it difficult to avoid obstacles on the road. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned technical problems by providing a campervan.

[0005] The technical solution of the present invention is a campervan, comprising a front frame and a rear frame, wherein the front frame and the rear frame are respectively provided with a front crossbar and a rear crossbar facing each other, and an upper folding frame and a lower folding frame facing each other are connected between the two sides of the front frame and the rear frame, characterized in that the upper folding frame includes an upper bending frame connected to the front frame, and the lower folding frame includes a lower bending frame connected to the front frame, both the upper bending frame and the lower bending frame include a front frame section and a rear frame section, the front frame section being connected to the front frame, and the front frame section and the rear frame... The frame is divided into sections with gaps, and the front frame section and the rear frame section are rotatably connected by a bending assembly. An elastic fabric is fitted onto the upper folding frame. The bending assembly includes a front frame core and a rear frame core rotatably connected to each other. The front frame core and the rear frame core are slidably connected within the front frame section and the rear frame section, respectively. The ends of the front frame core and the rear frame core that are far apart from each other are magnetic ends. Both the front frame section and the rear frame section are equipped with magnetic devices corresponding to the magnetic ends. The front frame core and the rear frame core are hollowed out and equipped with compression springs. The two ends of the compression springs respectively abut against… The magnetic attraction device and the front frame core or the front frame core are connected; the front frame has a movable opening, and a connecting seat is provided inside the front frame directly opposite the movable opening. A pull rod assembly is connected to the connecting seat. The pull rod assembly includes a hinge seat that rotatably connects to the connecting seat. The hinge seat has end holes at both ends, and limiting surfaces are provided on both sides of the hinge seat facing the front frame. The front frame also has through holes located on both sides of the movable opening. The front frame also has two locations located on the rotation path of the hinge seat and opposite the connecting seat. The pressure sensing device provides contact with the limiting surface when the mounting seat rotates. The front frame is also equipped with two tension sensing devices located on the outside of the two pressure sensing devices respectively. The tension sensing devices are connected to the hinge seat by tension springs that pass through the through hole and the end hole in sequence. When both the pressure sensing device on one side and the tension sensing device on the other side detect an force greater than their respective set values, the magnetic attraction device on the same side as the tension sensing device switches from an energized state to a de-energized state, causing the front frame core and the rear frame core to detach from their respective magnetic attraction devices.

[0006] In one embodiment, a handle is rotatably connected to the rear frame.

[0007] As one implementation, the handle is provided with a flexible sleeve.

[0008] In one embodiment, the tie rod assembly further includes a telescopic rod rotatably connected to the hinge seat, the front frame is provided with a buckle for engaging the telescopic rod, and the end of the telescopic rod is provided with a handle.

[0009] In one embodiment, both the front frame and the rear frame are provided with upper limit frames and lower limit frames that are opposite each other. The upper folding frame also includes an upper flip frame. The rear frame section of the upper flip frame and the upper bending frame are rotatably connected. The front frame section of the upper flip frame and the upper bending frame are respectively rotatably connected to the upper limit frames on the rear frame and the front frame.

[0010] The lower folding frame also includes a lower flip-down frame, the rear frame section of the lower flip-down frame and the lower bending frame are rotatably connected, and the front frame section of the lower flip-down frame and the lower bending frame are respectively rotatably connected to the upper limit frame on the rear frame and the front frame;

[0011] A synchronous connecting rod is provided between the connection point of the upper folding frame and the rear frame section of the upper bending frame and the connection point of the lower folding frame and the rear frame section of the lower bending frame.

[0012] In one embodiment, both of the aforementioned folding frames are provided with snap-fit ​​seats, and sunshades are detachably connected to the two snap-fit ​​seats.

[0013] In one embodiment, a serving board is detachably connected between the two upper folding frames.

[0014] In one embodiment, the bottom of the front frame is provided with casters, and the bottom of the rear frame is provided with brake wheels.

[0015] In one embodiment, the omnidirectional wheel is detachably connected to the front frame, and the brake wheel is detachably connected to the rear frame.

[0016] In one embodiment, the elastic fabric is a Teslin mesh fabric.

[0017] The advantages of this invention compared to existing technologies are that it improves the upper and lower folding frames, changing the originally non-bendable side frames of the vehicle body into bendable upper and lower folding frames. It is controlled in conjunction with the tie rod assembly at the front crossbar and implemented using elastic fabric. When the hinge seat rotates to one side relative to the connecting seat, if the rotation is large enough, the limiting surface contacts the pressure sensing device on that side, causing the pressure sensing device to generate a pressure value. Simultaneously with the rotation of the hinge seat, the tension sensing device on the other side is subjected to the tension spring connected to it, generating a greater tension value. When both the pressure sensing device on one side and the tension sensing device on the other side detect a force greater than their respective set values, the magnetic attraction device on the same side as the tension sensing device switches from an energized state to a de-energized state, causing the front frame core and rear frame core to detach from their respective magnetic attraction devices. Therefore, the body of the campervan bends. In other words, when a user pulls the campervan and intends to turn, the pull rod assembly first causes the articulated seat to rotate. The effective lengths of the front and rear frame cores on the side of the articulated seat that is turning remain unchanged, while the effective lengths of the front and rear frame cores on the opposite side of the articulated seat increase. After the turn is completed, as the user corrects the traction direction of the pull rod assembly, the articulated seat returns to its original position. The de-energized magnetic attraction device no longer meets the de-energization trigger condition, and the magnetic attraction device regains its magnetic force, causing the front and rear frame cores to re-attach to their respective magnetic attraction devices. Thus, the campervan's bending and steering automatically follow the changes in the traction direction of the pull rod assembly, making the campervan more flexible. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a campervan provided for an embodiment of the present invention;

[0019] Figure 2 An exploded view of a campervan provided for an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the structure of the bending component provided in an embodiment of the present invention;

[0021] Figure 4 A partial cross-sectional view of the bottom of a campervan provided for an embodiment of the present invention;

[0022] Figure 5 for Figure 4 A close-up view of the campervan provided in the image;

[0023] Figure 6 A top view of a campervan turning, provided for an embodiment of the present invention.

[0024] In the diagram: 1. Front frame; 2. Rear frame; 3. Front crossbar; 4. Rear crossbar; 5. Upper folding frame; 6. Lower folding frame; 7. Upper bending frame; 8. Lower bending frame; 9. Front frame section; 10. Rear frame section; 11. Spacing; 12. Bending assembly; 13. Elastic fabric; 14. Front frame core; 15. Rear frame core; 16. Magnetic end; 17. Magnetic device; 18. Compression spring; 19. Movable opening; 20. Connecting seat; 21. Tie rod assembly; 22. Hinge seat 23. End hole; 24. Limiting surface; 25. Through hole; 26. Pressure sensing device; 27. Tension sensing device; 28. Tension spring; 29. ​​Handle; 30. Flexible sleeve; 31. Telescopic rod; 32. Buckle; 33. Handle; 34. Upper limit frame; 35. Lower limit frame; 36. Upward folding frame; 37. Downward folding frame; 38. Synchronous linkage; 39. Snap-fit ​​seat; 40. Awning; 41. Table board; 42. Casters; 43. Brake wheel. Detailed Implementation

[0025] The above and other embodiments and advantages of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] In one implementation, such as Figure 1-6 As shown.

[0027] The campervan provided in this embodiment includes a front frame 1 and a rear frame 2. The front frame 1 and rear frame 2 are respectively provided with a front crossbar 3 and a rear crossbar 4 facing each other. An upper folding frame 5 and a lower folding frame 6 facing each other are connected between the two sides of the front frame 1 and rear frame 2. The upper folding frame 5 includes an upper bending frame 7 connecting to the front frame 1, and the lower folding frame 6 includes a lower bending frame 8 connecting to the front frame 1. Both the upper bending frame 7 and the lower bending frame 8 include a front frame section 9 and a rear frame section 10. The front frame section 9 connects to the front frame 1, and a gap 11 is provided between the front frame section 9 and the rear frame section 10. The frame segments 10 are rotatably connected by a bending assembly 12. An elastic fabric 13 is fitted onto the upper folding frame 5. The bending assembly 12 includes a front frame core 14 and a rear frame core 15 rotatably connected to each other. The front frame core 14 and the rear frame core 15 are slidably connected within the front frame segment 9 and the rear frame segment 10, respectively. The ends of the front frame core 14 and the rear frame core 15 that are far apart from each other are magnetic ends 16. Both the front frame segment 9 and the rear frame segment 10 are provided with magnetic devices 17 corresponding to the magnetic ends 16. The front frame core 14 and the rear frame core 15 are hollow inside and are provided with compression springs 18. The two ends of the compression springs 18 respectively abut against the magnetic devices 17 and the front frame. The front frame 1 has a core 14 or a front frame core 14. A movable opening 19 is provided on the front frame 1. A connecting seat 20 is located inside the front frame 1, directly opposite the movable opening 19. A tie rod assembly 21 is connected to the connecting seat 20. The tie rod assembly 21 includes a hinge seat 22 that rotatably connects to the connecting seat 20. End holes 23 are provided at both ends of the hinge seat 22. Limiting surfaces 24 are provided on both sides of the hinge seat 22 facing the front frame 1. The front frame 1 also has through holes 25 located on both sides of the movable opening 19. The front frame 1 also has two locations located on the rotation path of the hinge seat 22 that provide power when the hinge seat 22 rotates relative to the connecting seat 20. The pressure sensing device 26 is in contact with the limiting surface 24. The front frame 1 is also provided with two tension sensing devices 27 located on the outside of the two pressure sensing devices 26 respectively. The tension sensing device 27 is connected to the hinge seat 22 by a tension spring 28 that passes through the through hole 25 and the end hole 23 in sequence. When both the pressure sensing device 26 on one side and the tension sensing device 27 on the other side detect that the force is greater than their respective set values, the magnetic attraction device 17 on the same side as the tension sensing device 27 switches from the energized state to the de-energized state, so that the front frame core 14 and the rear frame core 15 are disengaged from their respective magnetic attraction devices 17.

[0028] In this embodiment, a campervan with the above-described structure is proposed to make the campervan more flexible and easier to avoid road obstacles. The campervan provided in this embodiment improves upon the upper folding frame 5 and lower folding frame 6, replacing the originally non-bendable side frames with bendable upper folding frames 7 and lower folding frames 8. It is controlled in conjunction with the tie rod assembly 21 at the front crossbar 3 and implemented using the elastic fabric 13. When the hinge seat 22 rotates to one side relative to the connecting seat 20, if the rotation is large enough, the limiting surface 24 contacts the pressure sensing device 26 located on that side, causing the pressure sensing device 26 to generate a pressure value. Simultaneously with the rotation of the hinge seat 22, the tension sensing device 27 on the other side is subjected to the tension spring 28 connected to it, generating a greater tension value. When both the pressure sensor 26 on one side and the tension sensor 27 on the other side detect an applied force greater than their respective set values, the magnetic attraction device 17 on the same side as the pressure sensor 26 switches from an energized state to a de-energized state, causing the front frame core 14 and the rear frame core 15 to detach from their respective magnetic attraction devices 17. Figure 3 and Figure 4 As shown, Figure 4 The image shows the state where both the front frame core 14 and the rear frame core 15 are attached to the magnetic attraction device 17. At this time, the compression springs 18 inside the front frame core 14 and the rear frame core 15 are compressed, and the effective lengths of the front frame core 14 and the rear frame core 15 are constant, so the body of the campervan does not bend. Figure 3 The diagram shows the state after the front frame core 14 and rear frame core 15 have detached from their respective magnetic attachment devices 17. Under the action of the compression spring 18, the effective lengths of both the front frame core 14 and rear frame core 15 are indefinite values, and driven by the steering of the pull rod assembly 21, the theoretically increased lengths of the front frame core 14 and rear frame core 15 are equal. Figure 6 As shown in the diagram. This occurs when one side of the magnetic attraction device 17 is de-energized while the other side remains energized, causing the campervan's body to bend.

[0029] In this embodiment, when the campervan is pushed forward by the handle 29, the campervan body does not bend. When the campervan is pulled forward by the handle 33, the campervan body can bend. When the user pulls the campervan to turn, the linkage assembly 21 first drives the hinge seat 22 to rotate. The effective lengths of the front frame core 14 and rear frame core 15 on the side of the hinge seat 22 that is turning remain unchanged, while the effective lengths of the front frame core 14 and rear frame core 15 on the opposite side of the hinge seat 22 that is turning increase. After the turn is completed, as the user corrects the traction direction of the linkage assembly 21, the hinge seat 22 returns to its original position. Then, the de-energized magnetic attraction device 17 no longer meets the de-energization trigger condition, and the magnetic attraction device 17 restores its magnetic attraction force, causing the front frame core 14 and rear frame core 15 to re-attach to their respective magnetic attraction devices 17. Thus, the overall bending and turning of the campervan body automatically follows the change in the traction direction of the linkage assembly 21, making the campervan body more flexible.

[0030] In one implementation, such as Figure 4 As shown.

[0031] The campervan provided in this embodiment has a handle 29 rotatably connected to its rear frame 2. The handle 29 is provided with a flexible sleeve 30. Its pull rod assembly 21 also includes a telescopic rod 31 rotatably connected to the hinge seat 22. The front frame 1 is provided with a buckle 32 for the telescopic rod 31 to be engaged. The end of the telescopic rod 31 is provided with a handle 33.

[0032] In this embodiment, the campervan is pushed forward by the handle 29 and pulled forward by the handle 33. Furthermore, the handle 29 is foldable, and can be rotated downwards to fold together with the rear frame 2. The lever assembly 21 is also foldable, and after the telescopic rod 31 is shortened, it is fixed to the front frame 1 by the buckle 32.

[0033] In one implementation, such as Figure 4 As shown.

[0034] The campervan provided in this embodiment has upper limit frames 34 and lower limit frames 35 that are vertically opposite each other on its front frame 1 and rear frame 2. The upper folding frame 5 also includes an upper folding frame 36, which is rotatably connected to the rear frame section 10 of the upper bending frame 7. The front frame section 9 of the upper folding frame 36 and the upper bending frame 7 are respectively rotatably connected to the upper limit frames 34 on the rear frame 2 and the front frame 1. The lower folding frame 6 also includes a lower folding frame 37, which is rotatably connected to the rear frame section 10 of the lower bending frame 8. The front frame section 9 of the lower folding frame 37 and the lower bending frame 8 are respectively rotatably connected to the upper limit frames 34 on the rear frame 2 and the front frame 1. A synchronous connecting rod 38 is connected between the connection point of the upper folding frame 36 and the rear frame section 10 of the upper bending frame 7 and the connection point of the lower folding frame 37 and the rear frame section 10 of the lower bending frame 8.

[0035] In this embodiment, the above-described structure allows the upper folding frame 5 and the lower folding frame 6 to be folded. The upper folding frame 36 and the lower folding frame 37 are rotatable relative to the rear crossbar 4, and the upper bending frame 7 and the lower bending frame 8 are also rotatable relative to the front crossbar 3. Furthermore, the upper folding frame 5 and the upper bending frame 7 are rotatable together, rotating until they are in a horizontal position. Figure 4 The state shown in the diagram limits the rotation. The same applies to the lower folding frame 6 and the lower bending frame 8. Furthermore, due to the connecting action of the synchronous link 38, the upper folding frame 5 and the upper bending frame 7, as well as the lower folding frame 6 and the lower bending frame 8, can be folded synchronously.

[0036] In one implementation, such as Figure 1 As shown.

[0037] The campervan provided in this embodiment has two folding frames 36, each equipped with a latching seat 39, and a sunshade 40 is detachably connected to the two latching seats 39.

[0038] In this embodiment, the sunshade 40 and the snap-fit ​​bracket 39 are detachably connected by the snap-fit ​​bracket 39, and the sunshade 40 can provide sun protection. Because the campervan can not only be used to carry camping equipment, but also, after arriving at the destination, after unloading the camping equipment, the interior can be used for children to sit and eat, or lie down and rest. The sunshade 40 can then provide sun protection for the children.

[0039] In one implementation, such as Figure 1 As shown.

[0040] The campervan provided in this embodiment has a detachable food board 41 connected between its two upper folding frames 5.

[0041] In this embodiment, by setting up a dining board 41, children can sit inside the vehicle to eat. Four children can sit inside the vehicle, each sitting on one side of the dining board 41.

[0042] In one implementation, such as Figure 1 As shown.

[0043] The campervan provided in this embodiment has casters 42 at the bottom of the front frame 1 and brake wheels 43 at the bottom of the rear frame 2. The casters 42 are detachably connected to the front frame 1, and the brake wheels 43 are detachably connected to the rear frame 2.

[0044] In this embodiment, the combination of swivel wheels 42 and brake wheels 43 provides a better user experience for the campervan, and this combination is also commonly used in other campervans.

[0045] In one implementation, such as Figure 1 As shown.

[0046] The campervan provided in this embodiment has a Teslin mesh fabric 13 for its elastic fabric.

[0047] In this embodiment, Teslin mesh is used, which allows the campervan to dry quickly after being splashed with water, improving the user experience, especially when camping by rivers or streams.

[0048] The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A campervan, comprising a front frame (1) and a rear frame (2), wherein the front frame (1) and the rear frame (2) are respectively provided with a front crossbar (3) and a rear crossbar (4) facing each other, and an upper folding frame (5) and a lower folding frame (6) facing each other are connected between the two sides of the front frame (1) and the rear frame (2), characterized in that, The upper folding frame (5) includes an upper bending frame (7) connected to the front frame (1), and the lower folding frame (6) includes a lower bending frame (8) connected to the front frame (1). Both the upper bending frame (7) and the lower bending frame (8) include a front frame section (9) and a rear frame section (10). The front frame section (9) is connected to the front frame (1). There is a gap (11) between the front frame section (9) and the rear frame section (10), and the front frame section (9) and the rear frame section (10) are rotatably connected by a bending assembly (12). An elastic cloth (13) is sleeved on the upper folding frame (5). The bending assembly (12) includes a front frame core (14) and a rear frame core (15) rotatably connected to each other. The front frame core (14) and the rear frame core (15) are slidably connected in the front frame section (9) and the rear frame section (10), respectively. The ends of the front frame core (14) and the rear frame core (15) that are far apart from each other are magnetic suction ends (16). The front frame section (9) and the rear frame section (10) are each provided with a magnetic suction device (17) corresponding to the magnetic suction end (16). The front frame core (14) and the rear frame core (15) are hollowed out and provided with a compression spring (18). The two ends of the compression spring (18) respectively abut against the magnetic suction device (17) and the front frame core (14) or the front frame core (14). The front frame (1) is provided with a movable opening (19). A connecting seat (20) is provided inside the front frame (1) directly opposite the movable opening (19). A tie rod assembly (21) is connected to the connecting seat (20). The tie rod assembly (21) includes a hinge seat (22) that is rotatably connected to the connecting seat (20). The two ends of the hinge seat (22) are provided with end holes (23). The hinge seat (22) has limiting surfaces (24) on both sides facing the front frame (1). The front frame (1) is also provided with a connection on both sides of the movable opening (19). The front frame (1) is provided with two pressure sensing devices (26) located on the rotation path of the hinge seat (22) and which are in contact with the limiting surface (24) when the hinge seat (22) rotates relative to the connecting seat (20). The front frame (1) is also provided with two tension sensing devices (27) located on the outside of the two pressure sensing devices (26). The tension sensing devices (27) are connected to the hinge seat (22) by a tension spring (28) that passes through the through hole (25) and the end hole (23) in sequence. When both the pressure sensing device (26) on one side and the tension sensing device (27) on the other side detect that the force is greater than their respective set values, the magnetic attraction device (17) on the same side as the tension sensing device (27) switches from the energized state to the de-energized state, causing the front frame core (14) and the rear frame core (15) to detach from their respective magnetic attraction devices (17).

2. The campervan according to claim 1, characterized in that, A handle (29) is rotatably connected to the rear frame (2).

3. The campervan according to claim 2, characterized in that, The handle (29) is provided with a flexible sleeve (30).

4. The campervan according to claim 1, characterized in that, The pull rod assembly (21) also includes a telescopic rod (31) rotatably connected to the hinge seat (22), and the front frame (1) is provided with a buckle (32) for the telescopic rod (31) to be engaged, and the end of the telescopic rod (31) is provided with a handle (33).

5. The campervan according to claim 1, characterized in that, The front frame (1) and the rear frame (2) are each provided with an upper limit frame (34) and a lower limit frame (35) that are opposite each other. The upper folding frame (5) also includes an upper folding frame (36). The upper folding frame (36) and the rear frame section (10) of the upper bending frame (7) are rotatably connected. The upper folding frame (36) and the front frame section (9) of the upper bending frame (7) are respectively rotatably connected to the upper limit frame (34) on the rear frame (2) and the front frame (1). The lower folding frame (6) also includes a lower flip-down frame (37), the lower flip-down frame (37) and the rear frame section (10) of the lower bending frame (8) are rotatably connected, and the lower flip-down frame (37) and the front frame section (9) of the lower bending frame (8) are respectively rotatably connected to the upper limit frame (34) on the rear frame (2) and the front frame (1); A synchronous link (38) is connected between the connection point of the rear frame section (10) of the upper folding frame (36) and the upper bending frame (7) and the connection point of the rear frame section (10) of the lower folding frame (37) and the lower bending frame (8).

6. The campervan according to claim 5, characterized in that, Both of the aforementioned folding frames (36) are provided with a snap-fit ​​seat (39), and a sunshade (40) is detachably connected to the two snap-fit ​​seats (39).

7. The campervan according to claim 1, characterized in that, A serving board (41) is detachably connected between the two upper folding racks (5).

8. The campervan according to claim 1, characterized in that, The front frame (1) is provided with casters (42) at the bottom, and the rear frame (2) is provided with brake wheels (43) at the bottom.

9. The campervan according to claim 8, characterized in that, The omnidirectional wheel (42) and the front frame (1) are detachably connected, and the brake wheel (43) and the rear frame (2) are detachably connected.

10. The campervan according to claim 8, characterized in that, The elastic fabric (13) is a Teslin mesh fabric.

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