Automatically-unfolded camping car

Abstract

The invention provides a camping car capable of being automatically unfolded, and aims to solve the problem that when a camping car in the prior art is unfolded, a user needs to press a center base to the bottom all the time to complete the whole unfolding process, and operation is inconvenient. A camping car capable of being automatically unfolded comprises four stand columns. The bottom frame comprises a central seat and a supporting frame arranged between each hinge seat and the central seat; the two ends of each supporting frame are hinged to the center base and the corresponding hinge base respectively, and an elastic reset piece is arranged between each supporting frame and the center base and / or the hinge base. The camping car has a folded state and an unfolded state; when the camping car is folded, the elastic reset piece deforms to store energy, when the camping car is unfolded, under the reset effect of the elastic reset piece, the camping car can be driven to automatically complete the unfolding process, and therefore user operation can be facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of outdoor transportation tools, and in particular relates to an automatically unfolded camper. Background Art

[0002] At present, people like to go outdoors for picnics, camping and other activities during holidays. When camping outdoors, it is usually necessary to use a camping car to transport food, tents, tools, etc. to the camping site. Therefore, camping cars provide great convenience for people. In the prior art, there are some camping cars that can be folded and unfolded. After folding, this camping car is small in size and occupies little space, which is convenient for people to carry. This foldable camping car usually includes four pillars, wheels located under each pillar, and a chassis connecting the lower ends of the four pillars. The chassis usually includes a center seat and a support rod. The two ends of the support rod are respectively hinged to the center seat and the corresponding lower ends of the pillars. When folding, the user lifts the center seat upward to make the four pillars close to each other and fold. When unfolding, the user presses the center seat downward to make the four pillars spread away from each other. When unfolding, this camping car requires the user to press the center seat all the way to the bottom to complete the entire unfolding process, which has the problem of inconvenient operation and needs to be improved. Summary of the invention

[0003] The present invention provides an automatically unfolding camper, aiming to solve the problem in the prior art that when unfolding a camper, a user needs to press a center seat all the way to the bottom to complete the entire unfolding process, which is inconvenient to operate.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] An automatically deployable camper, comprising:

[0006] Four pillars, the four pillars include two front pillars and two rear pillars, each of the pillars is provided with a hinge seat, and a wheel assembly is provided under each of the pillars; and,

[0007] A base frame, the base frame comprising a central seat and a support frame arranged between each of the hinged seats and the central seat; both ends of each of the support frames are respectively hinged to the central seat and the corresponding hinged seat, and an elastic reset member is arranged between each of the support frames and the central seat and / or the hinged seat;

[0008] The camping vehicle includes a folded state and an unfolded state; when the camping vehicle is switched from the unfolded state to the folded state, the center seat is lifted upward, and the center seat drives the four columns to move closer to the middle through the four sets of support frames, and the elastic reset member is deformed; when the camping vehicle is switched from the folded state to the unfolded state, under the reset action of the elastic reset member, the center seat drives the four columns to move away from each other through the four sets of support frames, and the four sets of support frames are unfolded in an X shape.

[0009] Further solution: Each set of the support frames includes a first support rod located on the upper side and a second support rod located on the lower side; the elastic reset member is a tension spring;

[0010] Both ends of the first support rod are respectively hinged to the center seat and the corresponding hinge seat, the tension spring is arranged between one end of the second support rod close to the center seat and the center seat, and the other end of the second support rod is hinged to the corresponding hinge seat;

[0011] When the camping vehicle is switched from the unfolded state to the folded state, the center seat is lifted upward, the center seat drives the four columns to move closer to the middle through the four sets of support frames, and the tension spring is stretched; when the camping vehicle is switched from the folded state to the unfolded state, under the reset action of the tension spring, the center seat drives the four columns to move away from each other through the four sets of support frames, and the four sets of support frames are unfolded in an X shape.

[0012] Based on the above technical solution: The above setting enables the camping vehicle to automatically complete the unfolding process under the reset action of the tension spring when unfolding; and the tension spring is convenient to install and has a long service life.

[0013] Further solution: A connecting frame is arranged between the first support rod and the second support rod, the lower end of the connecting frame is hinged to the second support rod through a first pin shaft, and a sleeve is arranged at the upper end of the connecting frame and sleeved on the first support rod and can slide relative to the first support rod.

[0014] Based on the above technical solution: By arranging a connecting frame between the first support rod and the second support rod, after the camping vehicle is unfolded, the first support rod and the second support rod are stably connected through the connecting frame, so that the stability of the chassis is better and a better supporting effect can be achieved; by arranging a sleeve at the upper end of the connecting frame that is sleeved on the first support rod and can slide relative to the first support rod, because the rotation angles of the first support rod and the second support rod are different during the folding or unfolding process of the camping vehicle, and the sleeve slides relatively, so as to facilitate the camping vehicle to be folded or unfolded smoothly.

[0015] Further solution: A limit pin is provided on the first support rod, and the limit pin is located between the sleeve and the central seat and is disposed close to the sleeve; when the camping vehicle is in the unfolded state, the limit pin abuts against the sleeve and restricts the sleeve from sliding along the first support rod toward the central seat side.

[0016] Based on the above technical solution: During the folding or unfolding process of the camping vehicle, the limit pin is used to prevent the sleeve from sliding excessively along the first support rod toward the central seat, resulting in the sleeve being unable to slide smoothly away from the central seat direction during the next folding, which will cause the camping vehicle to be unable to fold smoothly. Therefore, the limit pin limits the sleeve, facilitating the camping vehicle to fold or unfold smoothly.

[0017] Further solution: A tension spring connection part is provided on the lower side of the central seat, and the two ends of the tension spring are respectively connected to the first pin shaft and the tension spring connection part.

[0018] Based on the above technical solution: Since the tension spring is arranged between the second support rod and the central seat, and the second support rod is located below the first support rod, a tension spring connection part is provided on the lower side of the central seat, facilitating the installation of the tension spring, and after installation, the tension spring is located below the first support rod.

[0019] Further solution: Hanging holes are provided on the tension spring connection part, and one end of each tension spring close to the central seat is hung in the hanging hole.

[0020] Further solution: Two rows of the hanging holes are provided on the tension spring connection part, and one end of each tension spring close to the central seat is hung in the corresponding hanging hole.

[0021] Based on the above technical solution: The above setting facilitates each tension spring to be hung into the hanging hole one by one, which is not only convenient for installation but also can avoid the tension springs from squeezing each other.

[0022] Further solution: Two left and right hinge plates are provided at the lower part of each connecting frame, and the two hinge plates are respectively located on the opposite sides of the corresponding second support rod; the first pin shaft passes through the second support rod and the two ends of the first pin shaft are respectively located on the two hinge plates, and one end of the tension spring close to the second support rod passes through the second support rod and is hung on the first pin shaft.

[0023] Based on the above technical solution: By arranging the tension spring to pass through the second support rod and be hung on the first pin shaft, it is convenient for assembly and can also avoid the tension spring from being squeezed.

[0024] Further solution: The elastic resetting member is a torsion spring, and the torsion spring is arranged between the support frame and the central seat;

[0025] Alternatively, the torsion spring is disposed between the support frame and the hinge seat.

[0026] Further solution: Four first hinge grooves with their notches facing downward are provided around the central seat, and one end of each support frame close to the central seat is hinged in the corresponding first hinge groove;

[0027] Each hinge seat is provided with a second hinge groove with its notch facing upward, and one end of each support frame close to the hinge seat is hinged in the corresponding second hinge groove.

[0028] Based on the above technical solution: When the camping vehicle is in the unfolded state, one end of the support frame abuts against the upper top wall of the first hinge groove, and the other end abuts against the lower bottom wall of the second hinge groove, making the camping vehicle more stable after unfolding.

[0029] The beneficial effects of the present invention are:

[0030] By providing an elastic reset member, when the camping vehicle is switched from the unfolded state to the folded state, the elastic reset member deforms and stores energy. When the camping vehicle is switched from the folded state to the unfolded state, under the reset action of the elastic reset member, the central seat moves downward and drives the four columns to move away from each other through the four groups of support frames, so that the camping vehicle is switched to the unfolded state, thus automatically completing the unfolding process of the camping vehicle and facilitating the operation of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a schematic structural diagram of a front side frame and a rear side frame of a camping vehicle including two X-shaped frames according to the present invention.

[0033] Figure 2 It is a schematic structural diagram of a camping vehicle provided with a front side frame, a rear side frame, a left side frame and a right side frame according to the present invention.

[0034] Figure 3 It is a schematic structural diagram of a tension spring and a central seat.

[0035] Figure 4 It is a schematic structural diagram of a central seat provided with two rows of tension spring connection parts.

[0036] Explanation of reference numerals in the drawings:

[0037] 1 - Column; 11 - Hinge seat; 12 - Wheel assembly; 2 - First strut; 21 - Limit pin; 3 - Second strut; 31 - Tension spring; 32 - Connecting frame; 321 - Sleeve; 322 - Hinge plate; 33 - First pin; 4 - Tie rod assembly; 5 - Central seat; 51 - Hanging hole; 52 - Second pin; 6 - Front side frame; 7 - Rear side frame; 8 - Left side frame; 9 - Right side frame. Detailed implementation

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not used to limit the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] As Figures 1 to 4 shown, this embodiment provides a camping trailer that can be automatically deployed, including:

[0040] Four columns 1, the four columns 1 include two front columns 1 and two rear columns 1, a hinge seat 11 is provided on each column 1, and a wheel assembly 12 is provided below each column 1; and,

[0041] A chassis, the chassis includes a central seat 5 and a support frame provided between each hinge seat 11 and the central seat 5; both ends of each support frame are respectively hinged to the central seat 5 and the corresponding hinge seat 11, and an elastic reset member is provided between each support frame and the central seat 5 and / or the hinge seat 11;

[0042] The camping trailer includes a folded state and an unfolded state; when the camping trailer is switched from the unfolded state to the folded state, the central seat 5 is lifted upward, and the central seat 5 drives the four columns 1 to move closer to the middle through the four groups of support frames, and the elastic reset member is deformed; when the camping trailer is switched from the folded state to the unfolded state, under the reset action of the elastic reset member, the central seat 5 drives the four columns 1 to move away from each other through the four groups of support frames, and the four groups of support frames are deployed in an X shape.

[0043] As Figures 1 to 4 shown, each group of support frames includes a first strut 2 located on the upper side and a second strut 3 located on the lower side; the elastic reset member is a tension spring 31;

[0044] Both ends of the first strut 2 are respectively hinged to the central seat 5 and the corresponding hinge seat 11, the tension spring 31 is arranged between one end of the second strut 3 close to the central seat 5 and the central seat 5, and the other end of the second strut 3 is hinged to the corresponding hinge seat 11;

[0045] When the camping vehicle is switched from the deployed state to the folded state, the central seat 5 is lifted upward. The central seat 5 drives the four columns 1 to move closer to the middle through the four sets of support frames, and the tension spring 31 is stretched; when the camping vehicle is switched from the folded state to the deployed state, under the reset action of the tension spring 31, the central seat 5 drives the four columns 1 to move away from each other through the four sets of support frames, and the four sets of support frames are unfolded in an X shape.

[0046] Specifically, when the camping vehicle is folded, since the central seat 5 is lifted upward, both the first support rod 2 and the second support rod 3 rotate upward with their respective hinge axes as the rotation axes, and the rotation angle of the second support rod 3 is greater than that of the first support rod 2, so that the tension spring 31 is stretched. When the camping vehicle is unfolded, under the reset action of the tension spring 31, the central seat 5 moves downward, and the support frame rotates and resets, thereby driving the four columns 1 to move away from each other, and the camping vehicle can be automatically unfolded.

[0047] In this embodiment, as Figures 1 to 4 shown, in order to make the first support rod 2 and the second support rod 3 more stable during the folding or unfolding process of the camping vehicle, a connecting frame 32 is provided between the first support rod 2 and the second support rod 3. The lower end of the connecting frame 32 is hinged to the second support rod 3 through a first pin shaft 33, and a sleeve 321 sleeved on the first support rod 2 and slidable relative to the first support rod 2 is provided at the upper end of the connecting frame 32; specifically, during the folding or unfolding process of the camping vehicle, since the rotation angles of the first support rod 2 and the second support rod 3 are different, the connecting frame 32 will swing with the first pin shaft 33 as the rotation axis, specifically manifested as the sliding of the sleeve 321 along the first support rod 2;

[0048] Specifically, when the camping vehicle is switched from the deployed state to the folded state, the sleeve 321 slides along the first support rod 2 in a direction away from the central seat 5; when the camping vehicle is switched from the folded state to the deployed state, the sleeve 321 slides along the first support rod 2 in a direction close to the central seat 5.

[0049] In this embodiment, when the camping vehicle is switched from the folded state to the unfolded state, in order to prevent the sleeve 321 from sliding excessively along the first support rod 2 towards the direction close to the central seat 5, which may cause the sleeve 321 to get stuck on the first support rod 2 easily when the camping vehicle is folded again, a limit pin 21 is provided on the first support rod 2 in this embodiment, and the limit pin 21 is located between the sleeve 321 and the central seat 5 and is arranged close to the sleeve 321; when the camping vehicle is in the unfolded state, the limit pin 21 restricts the sleeve 321 from sliding along the first support rod 2 towards the side of the central seat 5. Specifically, after the camping vehicle frame is unfolded, the connecting frame 32 is arranged vertically, and one end of the sleeve 321 close to the central seat 5 abuts against the limit pin 21.

[0050] In this embodiment, as Figure 1 and Figure 2 shown, four first hinge grooves with their notches facing downwards are provided around the central seat 5, and one end of each support frame close to the central seat 5 is hinged in the corresponding first hinge groove;

[0051] Each hinge seat 11 is provided with a second hinge groove with its notch facing upwards, and one end of each support frame close to the hinge seat 11 is hinged in the corresponding second hinge groove. Specifically, when the support frame includes a first support rod 2 and a second support rod 3, one end of each first support rod 2 close to the central seat 5 is hinged in the corresponding first hinge groove through a second pin shaft 52, one end of each first support rod 2 close to the hinge seat 11 is hinged in the corresponding second hinge groove through a third pin shaft, and one end of the second support rod 3 close to the hinge seat 11 is hinged in the corresponding second hinge groove through a fourth pin shaft. When the camping vehicle is unfolded, one end of the first support rod 2 close to the central seat 5 abuts against the upper top wall of the first hinge groove, and one end of the second support rod 3 close to the hinge seat 11 abuts against the bottom wall of the second hinge groove, so that the chassis of the camping vehicle is more stable after being unfolded.

[0052] In this embodiment, as Figure 3 and Figure 4 shown, in order to facilitate the connection between the tension spring 31 and the central seat 5, a tension spring 31 connection part is provided on the lower side of the central seat 5, and two ends of the tension spring 31 are respectively connected to the first pin shaft 33 and the tension spring 31 connection part. Specifically, a hanging hole 51 is provided on the tension spring 31 connection part, and one end of each tension spring 31 close to the central seat 5 is hung in the hanging hole 51.

[0053] To facilitate the separation of the four tension springs 31 and their connection to the central seat 5 and to avoid interference between the four tension springs 31, two rows of the hanging holes 51 are provided on the connection part of the tension springs 31, and one end of each tension spring 31 close to the central seat 5 is hung in the corresponding hanging hole 51.

[0054] In this embodiment, to facilitate the connection between the tension spring 31 and the first pin shaft 33, two left and right hinge plates 322 are provided at the lower part of each connection frame 32. The hinge plates 322 are integrally formed with the sleeve 321, and the two hinge plates 322 are respectively located on the opposite sides of the corresponding second support rod 3; the first pin shaft 33 passes through the second support rod 3 and both ends of the first pin shaft 33 are respectively located on the two hinge plates 322. One end of the tension spring 31 close to the second support rod 3 passes through the second support rod 3 and is then hung on the first pin shaft 33. Specifically, the second support rod 3 is hollow to allow the tension spring 31 to pass through.

[0055] In this embodiment, the elastic resetting member can also be a torsion spring, and the torsion spring is arranged between the support frame and the central seat 5;

[0056] Or, the torsion spring is arranged between the support frame and the hinge seat 11. Specifically, the support frame preferably includes a first support rod 2. One end of the first support rod 2 is hinged to the central seat 5 through a second pin shaft 52, and the other end of the first support rod 2 is hinged to the hinge seat 11 through a third pin shaft; the torsion spring is sleeved on the second pin shaft 52 and the two arms of the torsion spring are respectively located on the first support rod 2 and the central seat 5; or, the torsion spring is sleeved on the third pin shaft and the two arms of the torsion spring are respectively located on the first support rod 2 and the hinge seat 11.

[0057] In this embodiment, as Figure 1 shown, as a specific embodiment of the side frame of the camping vehicle, a front side frame 6 is provided between the two front columns 1, a rear side frame 7 is provided between the two rear columns 1, and a pull rod assembly 4 is provided on the front side of the two front columns 1. The pull rod assembly 4 is used to facilitate the user to push or pull the camping vehicle

[0058] In this embodiment, as Figure 2 shown, as another specific embodiment of the side frame of the camping vehicle, a front side frame 6 is provided between the two front columns 1, a rear side frame 7 is provided between the two rear columns 1, a left side frame 8 is provided between the left front column 1 and the left rear column 1, and a right side frame 9 is provided between the right front column 1 and the right rear column 1; a pull rod assembly 4 is provided on the front side of the two front columns 1.

[0059] Principle description:

[0060] When the camping vehicle is switched from the unfolded state to the folded state, the user needs to lift the center seat 5 upward. During the upward movement of the center seat 5, the four support frames drive the four columns 1 to move closer to the middle respectively. When the four columns 1 move closer to the middle, they will drive the front frame 6, the rear frame 7, the left frame 8 and the right frame 9 to fold, so that the camping vehicle is switched to the folded state. After folding, the tension spring 31 is stretched and stores energy.

[0061] When the camping vehicle is switched from the folded state to the unfolded state, under the reset action of the tension spring 31, the center seat 5 drives the four columns 1 to move away from each other through the four support frames, so that the four support frames are unfolded in an X shape, and thus the camping vehicle can be automatically unfolded.

[0062] The present invention is not limited to the above optional embodiments. On the premise of not conflicting with each other, the various solutions can be combined arbitrarily; anyone can obtain other various forms of products under the inspiration of the present invention. However, no matter what changes are made in its shape or structure, as long as the technical solutions fall within the scope defined by the claims of the present invention, they all fall within the protection scope of the present invention.

Claims

1. An automatically deployed camper, characterized in that: include: Four pillars, the four pillars include two front pillars and two rear pillars, each of the pillars is provided with a hinge seat, and a wheel assembly is provided under each of the pillars; and, A base frame, the base frame comprising a central seat and a support frame arranged between each of the hinged seats and the central seat; both ends of each of the support frames are respectively hinged to the central seat and the corresponding hinged seat, and an elastic reset member is arranged between each of the support frames and the central seat and / or the hinged seat; The camper includes a folding state and an unfolding state; when the camper is switched from the unfolding state to the folding state, the center seat is lifted upward, and the center seat drives the four columns to move closer to the middle through the four groups of support frames, and causes the elastic reset member to deform; when the camper is switched from the folding state to the unfolding state, under the reset action of the elastic reset member, the center seat drives the four columns to move away from each other through the four groups of support frames, and the four groups of support frames are unfolded in an X shape.

2. The automatically deployed camper according to claim 1, characterized in that: Each group of the support frames includes a first support rod located on the upper side and a second support rod located on the lower side; the elastic reset member is a tension spring; The two ends of the first support rod are respectively hinged to the central seat and the corresponding hinge seat, the tension spring is arranged between one end of the second support rod close to the central seat and the central seat, and the other end of the second support rod is hinged to the corresponding hinge seat; When the camper is switched from an unfolded state to a folded state, the center seat is lifted upward, and the center seat drives the four upright posts to move toward the middle through the four groups of support frames, and the tension spring is stretched; when the camper is switched from a folded state to an unfolded state, under the resetting action of the tension spring, the center seat drives the four upright posts to move away from each other through the four groups of support frames, and the four groups of support frames are unfolded in an X shape.

3. The automatically deployed camper according to claim 2, characterized in that: A connecting frame is provided between the first support rod and the second support rod, the lower end of the connecting frame is hinged to the second support rod through a first pin shaft, and the upper end of the connecting frame is provided with a sleeve which is sleeved on the first support rod and can slide relative to the first support rod.

4. The automatically deployed camper according to claim 3, characterized in that: A limit pin is provided on the first support rod, and the limit pin is located between the sleeve and the center seat and is arranged close to the sleeve; when the camper is in the unfolded state, the limit pin abuts against the sleeve and limits the sleeve from sliding along the first support rod toward the center seat.

5. The automatically deployed camper according to claim 3, characterized in that: A tension spring connecting portion is provided on the lower side of the center seat, and two ends of the tension spring are respectively connected to the first pin shaft and the tension spring connecting portion.

6. The automatically deployable camper according to claim 5, characterized in that: A hanging hole is provided on the tension spring connecting portion, and one end of each tension spring close to the center seat is hung in the hanging hole.

7. The automatically deployable camper according to claim 6, characterized in that: Two rows of hanging holes are arranged on the tension spring connecting part, and one end of each tension spring close to the center seat is hung in the hanging hole corresponding to it.

8. The automatically deployable camper according to claim 5, characterized in that: The lower part of each connecting frame is provided with two left and right hinge plates, and the two hinge plates are respectively located on the opposite sides of the corresponding second support rod; the first pin shaft passes through the second support rod and the two ends of the first pin shaft are respectively located on the two hinge plates, and the end of the tension spring close to the second support rod passes through the second support rod and is hung on the first pin shaft.

9. The automatically deployable camper according to claim 1, characterized in that: The elastic reset member is a torsion spring, and the torsion spring is arranged between the support frame and the center seat; Alternatively, the torsion spring is arranged between the support frame and the hinge seat.

10. The automatically deployable camper according to claim 1, characterized in that: Four first hinge grooves are arranged around the central seat, and the notches are all arranged downward. One end of each support frame close to the central seat is hinged in the first hinge groove corresponding to it; Each of the hinged seats is provided with a second hinged slot with a notch facing upwards, and one end of each of the support frames close to the hinged seat is hinged in the second hinged slot corresponding thereto.

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