Foldable frame of camping car

Abstract

The utility model provides a foldable frame of a camping car. The foldable frame solves the problem that in the prior art, a folding support of the camping car is complex in structure. A frame of a camping car comprises four stand columns, a front side frame, a rear side frame, a left side frame and a right side frame are arranged among the four stand columns, the front side frame and the rear side frame are telescopic folding side frames, and the left side frame and the right side frame are folding side frames capable of being folded in half. Through the combined design of the folding folding side frames and the telescopic folding side frames, the structure is extremely simplified, and the bicycle frame is rapid, simple and convenient to fold and unfold. According to the utility model, the number of components is reduced, the complexity is reduced, the convenience of operation is improved, and a user can easily complete the unfolding or folding of the frame in a short time, so that different use scenes can be quickly adapted, the requirement of quick conversion is met, meanwhile, the stability and durability of the frame are ensured, and the user experience is improved. Therefore, the foldable camping car becomes practical and efficient outdoor equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of camping vehicles, and particularly relates to a foldable frame of a camping vehicle. Background Art

[0002] The folding bracket of a camping vehicle is a device designed for outdoor camping, which is convenient for carrying and storing. It can usually be quickly unfolded into a platform or a simple vehicle structure for placing or transporting camping equipment. The main advantages of such a bracket include portability, quick unfolding and folding, stability and versatility.

[0003] However, the existing foldable camping vehicles have the problem of complex structures, resulting in unsmooth unfolding and folding, and the steps of opening and closing are also time-consuming. Summary of the Utility Model

[0004] The utility model provides a foldable frame of a camping vehicle, aiming to solve the problem of the complex structure of the folding bracket of the camping vehicle in the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] A camping vehicle frame includes four columns. Between the four columns, there are a front side frame, a rear side frame, a left side frame and a right side frame. The front side frame and the rear side frame are both telescopic folding side frames, and the left side frame and the right side frame are both foldable side frames that can be folded in half.

[0007] In a preferred solution, the four columns include two left columns and two right columns. The left side frame includes a left folding component, and the left folding component is located between the two left columns. The right side frame includes a right folding component, and the right folding component is located between the two right columns.

[0008] Based on the above solution, by respectively arranging the left folding component and the right folding component on the left and right sides, the symmetry of the frame is maintained, which helps to keep balance during loading and avoid tipping caused by the shift of the center of gravity.

[0009] In a preferred solution, the left folding component includes a first connecting rod, a second connecting rod and a left locking component. Both the first connecting rod and the second connecting rod include a connecting end and a rotating end. The connecting end of the first connecting rod is hinged to one of the left columns, the connecting end of the second connecting rod is connected to the other left column, the rotating ends of the first connecting rod and the second connecting rod are hinged to each other. The left locking component includes a locking state that restricts the rotation of the rotating ends of the first connecting rod and the second connecting rod, and the left locking component also includes an unlocking state that releases the restriction on the rotation of the rotating ends of the first connecting rod and the second connecting rod;

[0010] The right folding assembly includes a third connecting rod, a fourth connecting rod, and a right locking assembly. Both the third connecting rod and the fourth connecting rod include a connecting end and a rotating end. The connecting end of the third connecting rod is connected to one of the right vertical columns, and the connecting end of the fourth connecting rod is hinged to the other right vertical column. The rotating ends of the third connecting rod and the fourth connecting rod are hinged together. The right locking assembly is slidably sleeved on the third connecting rod or the fourth connecting rod. The right locking assembly includes a locking state that restricts the rotation of the rotating ends of the third connecting rod and the fourth connecting rod, and the right locking assembly further includes an unlocking state that releases the restriction on the rotating ends of the third connecting rod and the fourth connecting rod.

[0011] Based on the above solution, through the design of the hinge and locking mechanism, the unfolding and folding of the frame can be easily operated without complex steps or tools. Moreover, the left locking assembly and the right locking assembly can restrict or release the restriction on the folding assembly, ensuring stability in the unfolded state while facilitating the user to quickly fold or unfold the frame as needed.

[0012] In a preferred solution, the rotating end of the first connecting rod is hinged to the rotating end of the second connecting rod through a left hinge seat, and the rotating end of the third connecting rod is hinged to the rotating end of the fourth connecting rod through a right hinge seat.

[0013] Based on the above solution, the hinge seat simplifies the folding and unfolding mechanism, making the operation smoother and more intuitive, making the folding action more compact and fast, and reducing the space and time required for folding and unfolding. Moreover, if the hinge seat or the connecting rod is worn or damaged, it can be relatively easily maintained or replaced without replacing the entire frame.

[0014] In a preferred solution, the left hinge seat includes a left connecting rod. One end of the left connecting rod is hinged to the rotating end of the first connecting rod, and the other end of the left connecting rod is hinged to the second connecting rod;

[0015] The right hinge seat includes a right connecting rod. One end of the right connecting rod is hinged to the rotating end of the third connecting rod, and the other end of the right connecting rod is hinged to the fourth connecting rod.

[0016] Based on the above solution, the design of the left connecting rod and the right connecting rod allows the frame to remain compact when folded, making the folding and unfolding of the frame smoother and reducing the misalignment or jamming that may occur during the folding process. Moreover, by hinging the rotating ends of the connecting rods through the left connecting rod and the right connecting rod, the load can be more effectively transmitted and dispersed, enhancing the structural strength of the frame.

[0017] Preferably, the left locking assembly includes a left limiting tube and a left cam wrench. The left cam wrench is rotatably arranged on the left limiting tube. The left limiting tube is provided with a left limiting hole. The left cam wrench includes a left wrench and a left cam rotatably arranged on the left limiting tube. When the left locking assembly is in the locked state, the left wrench drives the protruding part of the left cam to pass through the left limiting hole and press on the first connecting rod, the second connecting rod or the left hinge seat. When the left locking assembly is in the unlocked state, the left wrench drives the left cam to disengage from the left limiting hole and releases the pressing on the first connecting rod or the second connecting rod;

[0018] The right locking assembly includes a right limiting tube and a right cam wrench. The right cam wrench is rotatably arranged on the right limiting tube. The right limiting tube is provided with a right limiting hole. The right cam wrench includes a right wrench and a right cam rotatably arranged on the right limiting tube. When the right locking assembly is in the locked state, the right wrench drives the protruding part of the left cam to pass through the left limiting hole and press on the third connecting rod, the fourth connecting rod or the right hinge seat. When the right locking assembly is in the unlocked state, the right wrench drives the right cam to disengage from the right limiting hole and releases the pressing on the third connecting rod or the fourth connecting rod.

[0019] Based on the above solution, in the locked state, the cam wrench drives the protruding part of the cam to pass through the limiting hole and press on the first connecting rod or the second connecting rod, ensuring that the frame will not accidentally fold or slide when stable support is required, with locking reliability; when unlocking is needed, the wrench drives the cam to disengage from the limiting hole, quickly releasing the pressing on the connecting rod, so that the frame can be folded smoothly, facilitating storage or transportation. The whole process is intuitive and easy to execute.

[0020] Preferably, a sliding seat is slidably sleeved on each column and a fixed seat is provided at the bottom;

[0021] The front side frame and the rear side frame are both scissor-type telescopic assemblies composed of several groups of X-shaped frames hinged end to end in sequence. The scissor-type telescopic assembly includes two upper hinge ends respectively hinged on the corresponding front and rear sliding seats, and two lower hinge ends respectively hinged on the corresponding front and rear fixed seats.

[0022] Based on the above solution, the scissor-type telescopic assembly can be folded up, making the space occupied by the camping vehicle smaller, facilitating transportation and storage. The design of the sliding seat and the fixed seat can ensure that the scissor-type telescopic assembly remains in the correct position during the telescopic process, reducing the risk of accidents during operation.

[0023] Preferably, the X-shaped frame is composed of two connecting rods hinged in the middle. Each group of X-shaped frames includes two upper hinge ends and two lower hinge ends at the front and back; the upper hinge end at the rear of the previous group is hinged to the upper hinge end at the front of the next group, and the lower hinge end at the rear of the previous group is hinged to the lower hinge end at the front of the next group.

[0024] Based on the above solution, by hinging the hinge ends of the front and rear groups of X-shaped frames to each other, the frame can be folded compactly, reducing the volume after folding and facilitating storage and transportation; the X-shaped frame enables the frame to be adjusted in length and width to meet different load-carrying requirements, providing good flexibility.

[0025] Preferably, the foldable side frame is arranged between two corresponding sliding seats at the front and back.

[0026] Based on the above solution, by using sliding seats to fix the side frame, additional fixing components can be reduced, and users can easily operate the folding and unfolding of the side frame without additional tools or complex steps, making the use of the frame more convenient and fast.

[0027] The beneficial effects of the present utility model are as follows:

[0028] The present utility model provides a foldable frame for a camping cart. Through the combined design of a foldable side frame and a telescopic foldable side frame, the structure is extremely simplified, enabling the frame to be quickly and easily folded and unfolded. The present utility model not only reduces the number of components, lowers the complexity, but also improves the operation convenience. Users can easily complete the unfolding or folding of the frame within a short time, thus quickly adapting to different usage scenarios. Whether additional space is needed when preparing camping equipment or the frame needs to be stored in the vehicle trunk after the activity, this efficient folding mechanism can meet the requirements of quick conversion, while ensuring the stability and durability of the frame, making the foldable camping cart a practical and efficient outdoor equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus 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.

[0030] Figure 1 It is the first schematic diagram of the structure of a foldable frame for a camping cart in the present utility model.

[0031] Figure 2 It is Figure 1 The enlarged view of part A in

[0032] Figure 3 It is a schematic diagram of the rotating rod structure of a foldable frame of a camping vehicle in the present utility model.

[0033] Figure 4 It is the second schematic diagram of the rotating rod structure of a foldable frame of a camping vehicle in the present utility model.

[0034] Explanation of the reference numerals in the figure:

[0035] 1 - Left column; 2 - Right column; 3 - Left folding assembly; 31 - First connecting rod; 32 - Second connecting rod; 33 - Left locking assembly; 331 - Left limiting tube; 332 - Left cam wrench; 4 - Right folding assembly; 41 - Third connecting rod; 42 - Fourth connecting rod; 43 - Right locking assembly; 431 - Right limiting tube; 432 - Right cam wrench; 5 - Sliding seat; 6 - Fixed seat; 7 - X-shaped frame; 8 - Rotating rod. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present utility model.

[0037] Refer to Figures 1-4 , this embodiment provides a foldable frame of a camping vehicle, including four columns. There are a front side frame, a rear side frame, a left side frame, and a right side frame between the four columns. The front side frame and the rear side frame are both retractable and foldable side frames, and the left side frame and the right side frame are both foldable side frames that can be folded in half.

[0038] Among them, the four columns include two left columns 1 and two right columns 2. The left side frame includes a left folding assembly 3, and the left folding assembly 3 is located between the two left columns 1. The right side frame includes a right folding assembly 4, and the right folding assembly 4 is located between the two right columns 2.

[0039] The left folding assembly 3 includes a first connecting rod 31, a second connecting rod 32 and a left locking assembly 33. Both the first connecting rod 31 and the second connecting rod 32 include a connecting end and a rotating end. The connecting end of the first connecting rod 31 is hinged to one of the left columns 1, the connecting end of the second connecting rod 32 is connected to the other left column 1, the rotating ends of the first connecting rod 31 and the second connecting rod 32 are hinged to each other, the left locking assembly 33 includes a locking state that restricts the rotation of the rotating ends of the first connecting rod and the second connecting rod, and the left locking assembly 33 further includes an unlocking state that releases the restriction on the rotating ends of the first connecting rod and the second connecting rod.

[0040] The right folding assembly 4 includes a third connecting rod 41, a fourth connecting rod 42 and a right locking assembly 43. Both the third connecting rod 41 and the fourth connecting rod 42 include a connecting end and a rotating end. The connecting end of the third connecting rod 41 is connected to one of the right columns 2, the connecting end of the fourth connecting rod 42 is hinged to the other right column 2, the rotating ends of the third connecting rod 41 and the fourth connecting rod 42 are hinged to each other, the right locking assembly 43 is slidably sleeved on the third connecting rod 41 or the fourth connecting rod 42, the right locking assembly 43 includes a locking state that restricts the rotation of the rotating ends of the third connecting rod and the fourth connecting rod, and the right locking assembly 43 further includes an unlocking state that releases the restriction on the rotating ends of the third connecting rod and the fourth connecting rod.

[0041] Specifically, the four columns are divided into two left columns 1 and two right columns 2. The front side frame and the rear side frame are used as telescopic folding side frames, while the left side frame and the right side frame are designed as foldable side frames that can be folded in half. The folding mechanisms of the left side frame and the right side frame are realized by the left folding assembly 3 and the right folding assembly 4. The left folding assembly 3 consists of two connecting rods: a first connecting rod 31 and a second connecting rod 32. One end of each of these two connecting rods is hinged to one of the two left columns 1 to form a connecting end, and the other ends are hinged to each other to form a rotating end. The function of the left locking assembly 33 is to control the rotation state of the rotating ends of the first connecting rod 31 and the second connecting rod 32, which can either lock to fix the position of the side frame or unlock to allow the side frame to fold.

[0042] Similarly, the right folding assembly 4 also consists of two connecting rods: a third connecting rod 41 and a fourth connecting rod 42. The connecting ends of these two connecting rods are respectively hinged to the two right columns 2, and the rotating ends are also hinged to each other. The right locking assembly 43 can be slidably sleeved on the third connecting rod 41 or the fourth connecting rod 42 to restrict or release the rotation of the rotating ends of the third connecting rod 41 and the fourth connecting rod 42, thereby controlling the folding and fixing of the right side frame.

[0043] In addition, the rotating end of the first connecting rod 31 is hinged to the rotating end of the second connecting rod 32 via a left hinge seat, and the rotating end of the third connecting rod 41 is hinged to the rotating end of the fourth connecting rod 42 via a right hinge seat.

[0044] The left hinge seat includes a left connecting rod, one end of which is hinged to the rotating end of the first connecting rod, and the other end of which is hinged to the second connecting rod;

[0045] The right hinge seat comprises a right connecting rod, one end of which is hinged to the rotating end of the third connecting rod, and the other end of which is hinged to the fourth connecting rod.

[0046] Specifically, the first connecting rod 31 and the second connecting rod 32 constitute a part of the left side frame, and the first connecting rod 31 and the rotating end of the second connecting rod are hinged through the left hinge seat. The left hinge seat includes a left connecting rod, one end of which forms a hinge point with the rotating end of the first connecting rod 31, and the other end forms another hinge point with the second connecting rod 32, thereby connecting the two connecting rods to form a movable folding structure.

[0047] Similarly, the right side frame is composed of a third connecting rod 41 and a fourth connecting rod 42, and their rotating ends are hinged through a right hinge seat. The right hinge seat includes a right connecting rod, one end of which is hinged to the rotating end of the third connecting rod 41, and the other end is hinged to the fourth connecting rod 42, thereby realizing the folding mechanism of the right side frame.

[0048] Wherein, in order to realize the rapid locking and unlocking of the locking assembly, on the basis of any of the above schemes, the left locking assembly 33 includes a left limiting tube 331 and a left cam wrench 332, the left cam wrench 332 is rotatably arranged on the left limiting tube 331, the left limiting tube 331 is provided with a left limiting hole, the left cam wrench 332 includes a left wrench and a left cam rotatably arranged on the left limiting tube 331, when the left locking assembly 33 is in a locked state, the left wrench drives the protruding portion of the left cam to pass through the left limiting hole to squeeze the first connecting rod 31, the second connecting rod 32 or the left hinge seat, when the left locking assembly 33 is in an unlocked state, the left wrench drives the left cam to disengage from the left limiting hole and release the squeezing of the first connecting rod 31 or the second connecting rod 32;

[0049] The right locking assembly 43 includes a right limiting tube 431 and a right cam wrench 432. The right cam wrench 432 is rotatably arranged on the right limiting tube 431. The right limiting tube 431 is provided with a right limiting hole. The right cam wrench 432 includes a right wrench and a right cam rotatably arranged on the right limiting tube 431. When the right locking assembly 43 is in the locked state, the right wrench drives the protruding part of the left cam to pass through the left limiting hole and squeeze the third connecting rod 41, the fourth connecting rod 42 or the right hinge seat. When the right locking assembly 43 is in the unlocked state, the right wrench drives the right cam to disengage from the right limiting hole and release the extrusion on the third connecting rod 41 or the fourth connecting rod 42.

[0050] Specifically, the locking assemblies on both the left and right sides are composed of a limiting tube and a cam wrench, which respectively control the locking and unlocking of the left side frame and the right side frame. The left locking assembly 33 includes a left limiting tube 331 and a cam wrench, and the latter is installed on the former and can rotate. The cam part of the cam wrench can pass through the limiting hole of the limiting tube by operating the wrench to squeeze the first connecting rod 31, the second connecting rod 32 or the left hinge seat, so as to lock the left side frame; rotating the cam makes the protruding part disengage from the limiting hole, thereby unlocking the side frame. The structure of the right locking assembly 43 is similar, and it is also composed of a right limiting tube 431 and a cam wrench, which controls the locking and unlocking of the right side frame. The rotation of the cam wrench controls the cooperation between the protruding part and the limiting hole to realize the fixation or release of the side frame.

[0051] Among them, in order to realize the telescopic folding of the front side frame and the rear side frame, on the basis of any of the above solutions, a sliding seat 5 is slidably sleeved on each of the columns, and a fixed seat 6 is provided at the bottom;

[0052] Both the front side frame and the rear side frame are scissor-type telescopic assemblies composed of a plurality of groups of X-shaped frames 7 hinged end to end in sequence; the scissor-type telescopic assembly includes two upper hinge ends respectively hinged to the corresponding front and rear sliding seats 5, and two lower hinge ends respectively hinged to the corresponding front and rear fixed seats 6.

[0053] The X-shaped frame 7 is composed of two connecting rods hinged in the middle. Each group of X-shaped frames 7 includes two front and two rear upper hinge ends and two front and two rear lower hinge ends; the rear upper hinge end of the previous group is hinged to the front upper hinge end of the next group, and the rear lower hinge end of the previous group is hinged to the front lower hinge end of the next group.

[0054] Specifically, a sliding seat 5 is provided on each upright column. These sliding seats 5 can move up and down along the upright column, and a fixed seat 6 is fixed at the bottom of the upright column. The front side frame and the rear side frame are both scissor-type telescopic assemblies composed of multiple X-shaped frames 7. Each X-shaped frame 7 is composed of two connecting rods, which are connected at the middle through a hinge point to form an X-shaped structure. Each group of X-shaped frames 7 has two upper hinge ends and two lower hinge ends at the front and rear. In the scissor-type telescopic assembly, the rear upper hinge end of the previous X-shaped frame 7 is connected to the front upper hinge end of the next X-shaped frame 7. Similarly, the rear lower hinge end of the previous X-shaped frame 7 is connected to the front lower hinge end of the next X-shaped frame 7, forming a continuous chain.

[0055] At both ends of the scissor-type telescopic assembly, the two front and rear upper hinge ends are respectively hinged to the corresponding front and rear sliding seats 5, while the two front and rear lower hinge ends are respectively hinged to the corresponding front and rear fixed seats 6.

[0056] In addition, a foldable side frame is arranged between the corresponding front and rear sliding seats 5. That is, the left side frame and the right side frame can be folded between these two sliding seats 5 to facilitate the storage and deployment of the vehicle frame. When the vehicle frame needs to be deployed, the foldable side frame will be locked in place to ensure the stability and load-bearing capacity of the vehicle frame. When the vehicle frame needs to be folded to save space, these side frames can be folded up, making the vehicle frame more compact.

[0057] The following further explains the present utility model in conjunction with the working principle:

[0058] The front side frame and the rear side frame of the vehicle frame are composed of multiple X-shaped frames 7. These X-shaped frames 7 are formed by two connecting rods hinged in the middle. Each group of X-shaped frames 7 has two upper hinge ends and two lower hinge ends at the front and rear. The upper hinge ends are connected to the sliding seats 5 on the upright column, while the lower hinge ends are connected to the fixed seats 6 at the bottom of the upright column. When the length of the vehicle frame needs to be adjusted, the user moves the sliding seat 5 up and down along the upright column, driving the telescoping of the X-shaped frame 7 to achieve the adjustment of the vehicle frame length. The left side frame and the right side frame are of a foldable design. They are connected to the sliding seats 5 on the upright column through hinge seats, allowing the left side frame and the right side frame to be folded up when not in use, reducing the width of the vehicle frame for easy storage and transportation. The locking and unlocking of the vehicle frame are achieved through the locking components on the left and right sides. These components include a limit tube and a cam wrench. Through the operation of the wrench, the protruding part of the cam can pass through the limit hole of the limit tube to squeeze or release the connecting rod, thereby locking or unlocking the side frame.

[0059] When deploying the vehicle frame, unlock all side frames, adjust the position of the X-shaped frame 7 to lengthen or shorten the vehicle frame, and then deploy and lock the left side frame and the right side frame. When folding the vehicle frame, first unlock the left side frame and the right side frame, retract the X-shaped frame 7 to shorten the vehicle frame length, and finally fold all side frames to a compact state.

[0060] The present utility model is not limited to the above optional embodiments. On the premise of non-conflict, various schemes can be arbitrarily combined; anyone can obtain other various forms of products under the inspiration of the present utility model. 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 utility model, they all fall within the protection scope of the present utility model.

Claims

1. A collapsible frame for a camping vehicle, characterized in that: It includes four columns. A front side frame, a rear side frame, a left side frame and a right side frame are arranged between the four columns. The front side frame and the rear side frame are both telescopic folding side frames, and the left side frame and the right side frame are both foldable side frames that can be folded in half.

2. The foldable frame of a camping vehicle according to claim 1, wherein: The four columns include two left columns and two right columns. The left side frame includes a left folding assembly located between the two left columns. The right side frame includes a right folding assembly located between the two right columns.

3. The foldable frame of a camping vehicle according to claim 2, characterized in that: The left folding assembly includes a first connecting rod, a second connecting rod and a left locking assembly. Both the first connecting rod and the second connecting rod include a connecting end and a rotating end. The connecting end of the first connecting rod is hinged to one of the left columns, the connecting end of the second connecting rod is connected to the other left column, the rotating end of the first connecting rod and the rotating end of the second connecting rod are hinged together. The left locking assembly includes a locking state that restricts the rotation of the rotating ends of the first connecting rod and the second connecting rod, and the left locking assembly further includes an unlocking state that releases the restriction on the rotating ends of the first connecting rod and the second connecting rod; The right folding assembly includes a third connecting rod, a fourth connecting rod and a right locking assembly. Both the third connecting rod and the fourth connecting rod include a connecting end and a rotating end. The connecting end of the third connecting rod is connected to one of the right columns, the connecting end of the fourth connecting rod is hinged to the other right column, the rotating end of the third connecting rod and the rotating end of the fourth connecting rod are hinged together. The right locking assembly is slidably sleeved on the third connecting rod or the fourth connecting rod. The right locking assembly includes a locking state that restricts the rotation of the rotating ends of the third connecting rod and the fourth connecting rod, and the right locking assembly further includes an unlocking state that releases the restriction on the rotating ends of the third connecting rod and the fourth connecting rod.

4. The foldable frame of a camping vehicle according to claim 3, characterized in that: The rotating end of the first connecting rod is hinged to the rotating end of the second connecting rod through a left hinge seat. The rotating end of the third connecting rod is hinged to the rotating end of the fourth connecting rod through a right hinge seat.

5. The foldable frame of a camping vehicle according to claim 4, characterized in that: The left hinge seat includes a left connecting rod. One end of the left connecting rod is hinged to the rotating end of the first connecting rod, and the other end of the left connecting rod is hinged to the second connecting rod; The right hinge seat includes a right connecting rod. One end of the right connecting rod is hinged to the rotating end of the third connecting rod, and the other end of the right connecting rod is hinged to the fourth connecting rod.

6. The foldable frame of a camping vehicle according to claim 5, wherein: The left locking assembly includes a left limiting tube and a left cam wrench. The left cam wrench is rotatably arranged on the left limiting tube. The left limiting tube is provided with a left limiting hole. The left cam wrench includes a left wrench and a left cam rotatably arranged on the left limiting tube. When the left locking assembly is in the locking state, the left wrench drives the protruding part of the left cam to pass through the left limiting hole and press on the first connecting rod, the second connecting rod or the left hinge seat. When the left locking assembly is in the unlocking state, the left wrench drives the left cam to disengage from the left limiting hole and releases the pressing on the first connecting rod or the second connecting rod; The right locking assembly includes a right limiting tube and a right cam wrench. The right cam wrench is rotatably arranged on the right limiting tube. The right limiting tube is provided with a right limiting hole. The right cam wrench includes a right wrench and a right cam rotatably arranged on the right limiting tube. When the right locking assembly is in the locked state, the right wrench drives the protruding part of the left cam to pass through the left limiting hole and press against the third connecting rod, the fourth connecting rod or the right hinge seat. When the right locking assembly is in the unlocked state, the right wrench drives the right cam to disengage from the right limiting hole and relieve the pressing on the third connecting rod or the fourth connecting rod.

7. A collapsible frame for a camping vehicle according to claim 1, characterized in that: A sliding seat is slidably sleeved on each of the columns, and a fixed seat is provided at the bottom. The front side frame and the rear side frame are both scissor-type telescopic assemblies composed of several groups of X-shaped frames hinged end to end in sequence. The scissor-type telescopic assembly includes two upper hinge ends respectively hinged to the corresponding front and rear sliding seats, and two lower hinge ends respectively hinged to the corresponding front and rear fixed seats.

8. The foldable frame of a camping vehicle according to claim 7, characterized in that: The X-shaped frame is composed of two connecting rods hinged in the middle. Each group of X-shaped frames includes two upper hinge ends and two lower hinge ends in the front and rear. The upper hinge end at the rear of the previous group is hinged to the upper hinge end at the front of the next group, and the lower hinge end at the rear of the previous group is hinged to the lower hinge end at the front of the next group.

9. A collapsible frame for a camping vehicle according to claim 8, characterized in that: The foldable side frame is arranged between the corresponding front and rear sliding seats.

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