CN220163908U - Folding frame and campsite car - Google Patents

Abstract

The utility model relates to a folding frame and a campsite vehicle, comprising: the first frame body and the second frame body are symmetrically arranged and at least comprise a transverse section positioned at the bottom and two vertical sections respectively vertically arranged at two ends of the transverse section; the traveling wheels are at least four in number and distributed at the bottom ends of the two transverse sections in a matrix; the folding piece comprises an upper frame folding piece, a bottom frame folding assembly and a side frame folding assembly which are respectively arranged between the first frame body and the second frame body; the upper frame folding piece, the bottom frame folding assembly and the side frame folding assembly are hinged with the vertical section, so that the upper frame folding piece, the bottom frame folding assembly and the side frame folding assembly stretch along with the distance between the first frame body and the second frame body and form a containing area for placing objects; the structural stability of whole frame is better and when folding accomodating, and two walking wheels of one side rotatable laminating folding frame reduces folding volume, is convenient for pack and transportation.

Description

Folding frame and campsite car

Technical Field

The utility model relates to the field of folding frames, in particular to a folding frame and a campsite vehicle.

Background

Camping vehicles are common transportation tools, and people often use the camping vehicles to transport articles and tools in places where automobiles are inconvenient or even cannot enter, such as outdoor camping places or fishing places. The existing campsite car is designed into a mode that the foldable frame and the inner pocket are matched with each other, so that the foldable frame and the inner pocket can be folded and stored when the campsite car is not needed to be used, and the article carrying or article transferring of people going out for camping can be met.

An existing folding camp car, such as a camp car disclosed in CN210478755U, comprises a camp car body, wherein the camp car body comprises a front guardrail and a rear guardrail, a front upper edge pipe is arranged at the position of the rear end face of the front guardrail, a rear upper edge pipe is arranged at the position of the front end face of the rear guardrail, the front upper edge pipe is connected with the rear upper edge pipe, a supporting plate is arranged at the position between the front guardrail and the rear guardrail, which is close to the bottom, and an operation pull rod is arranged at the position in the middle of the front end face of the front guardrail; the bottom and the side edges of the utility model are supported by simple vertical or straight pipe fittings, which can lead the utility model to be unfolded and used, the supporting force of the bottom frame and the side frames is insufficient, and the whole volume is larger in the folded state, so that the storage, loading and transportation are inconvenient.

Disclosure of Invention

The utility model aims to overcome the defects that the folding frame and the camping vehicle have insufficient supporting force of a bottom frame and a side frame in the unfolded and used state and have larger whole volume in the folded state and are inconvenient to store, load and transport in the unfolded and used state in the prior art, thereby providing the folding frame and the camping vehicle.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in one aspect, the present utility model provides a folding chassis comprising: the first frame body and the second frame body are symmetrically arranged and at least comprise a transverse section positioned at the bottom and two vertical sections respectively vertically arranged at two ends of the transverse section; the traveling wheels are at least four in number and distributed at the bottom ends of the two transverse sections in a matrix; the folding piece comprises an upper frame folding piece, a bottom frame folding assembly and a side frame folding assembly which are respectively arranged between the first frame body and the second frame body; the upper frame folding piece, the bottom frame folding assembly and the side frame folding assembly are hinged with the vertical section, so that the upper frame folding piece, the bottom frame folding assembly and the side frame folding assembly stretch along with the distance between the first frame body and the second frame body and form a containing area for placing objects.

Optionally, the upper frame folder includes: the number of the overturning connecting pieces is two and the overturning connecting pieces are symmetrically arranged; the two bending parts of one U-shaped pipe are hinged with the upper parts of the two vertical sections of the first frame body, and the two bending parts of the other U-shaped pipe are hinged with the upper parts of the two vertical sections of the second frame body; the tail ends of the same sides of the two U-shaped pipes are hinged to the same overturning connecting piece, so that the two U-shaped pipes can be overturned from the middle along with the distance between the first frame body and the second frame body to form an upper frame of the containing area.

Optionally, the side frame folding assembly includes: the four side inclined rods are symmetrically arranged on opposite sides of the first frame body and the second frame body respectively in a group of two, the lower ends of the two side inclined rods positioned on the same side are mutually hinged, and the upper ends of the two side inclined rods are respectively hinged to the upper parts of the vertical sections of the first frame body and the second frame body; the sliding parts are four in number and are respectively sleeved on the side inclined rods in a sliding manner; the lower inclined rods are four in number, one ends of the lower inclined rods are respectively hinged to the lower parts of the four vertical sections, and the other ends of the lower inclined rods are respectively hinged to the side wall surfaces of the four sliding pieces; the upper inclined rods are four in number, one end of each upper inclined rod is hinged with the upper frame folding piece, and the other ends of the upper inclined rods are respectively hinged with the side wall surfaces of the four sliding pieces.

Optionally, the bottom frame folding assembly includes two hinged half bottom frames, and one side of the half bottom frames far away from each other has two outer ends, and the two outer ends are hinged with two vertical section lower parts of the first frame body/the second frame body respectively, so that the half bottom frames turn over from the middle part along with the distance of the first frame body and the second frame body to form the bottom frame of the accommodation area.

Further optionally, the half bottom frame includes: the number of the first bottom pipes is two, the first bottom pipes are symmetrically arranged, and two ends of the first bottom pipes are respectively hinged with the tail ends of the first bottom pipes of the other half-side bottom frame and the lower part of the vertical section; and the second bottom pipes are at least one in number and are connected between the two first bottom pipes.

Further optionally, the half bottom frame further includes: and the middle rod is fixed at the inner position of one half of the bottom frame close to the hinge joint so as to strengthen the strength of the bottom frame.

Further, optionally, the folding assembly further comprises a chassis rest rod, wherein the chassis rest rod is arranged at the lower ends of the middle parts of the two groups of side diagonal rods and is positioned on the same axis with the hinge joint of the side diagonal rods, and the chassis rest rod is arranged at the lower end of the middle part of the folding assembly of the bottom frame so as to strengthen and maintain the horizontal state of the folding assembly of the bottom frame.

On the other hand, the utility model also provides a campsite vehicle, which is provided with the folding frame, and further comprises an inner pocket for closing the bottom and the side wall surface of the containing area and a hauling rod piece for hauling the campsite vehicle, wherein the hauling rod piece comprises: sliding the telescopic towing bar; the handle is arranged at the top end of the telescopic towing bar; the rotating seat is fixed at the bottom end of the telescopic towing rod; and the rotating groove is fixed on the transverse section of the second frame body and is rotationally connected with the rotating seat.

Optionally, the sliding telescopic pulling rod comprises a lower pulling rod and an upper pulling rod inserted into the lower pulling rod from the upper part, the top end of the lower pulling rod is sleeved with a pulling rod connecting piece, and the pulling rod connecting piece is provided with a pulling rod locking button for adjusting the combined length of the lower pulling rod and the lower pulling rod.

Optionally, two travelling wheels close to the towing bar are installed in the eccentric wheel frames, and the two eccentric wheel frames are symmetrically and rotatably installed on the transverse section of the second frame body through the steering shaft sleeve, so that when the folding frame is folded and stored, the two travelling wheels are attached to the folding frame after being turned by 90 degrees.

Compared with the prior art, the utility model has the beneficial effects that:

according to the folding frame and the campsite vehicle provided by the technical scheme, the expansion or contraction of the whole folding frame can be realized through the mutual matching mode of the two frame bodies and the folding piece, and after the folding piece is expanded, the upper frame folding piece, the bottom frame folding assembly and the side frame folding assembly can be synchronously expanded to form a containing area for placing objects; the side frame folding assembly can enclose the side face of the inner pocket; the upper opening of the upper frame folding piece is matched with the upper opening of the inner pocket to support and pull the cloth pocket uniformly, so that the structural stability of the whole frame is better, and the inner pocket unfolding effect is better;

according to the camp vehicle provided by the scheme, the inner pocket for sealing the bottom and the side wall surface of the accommodating area is arranged in the accommodating area of the folding frame, camping objects are conveniently placed, meanwhile, the camp vehicle is formed by matching with the towing rod piece, towing is convenient, and the universal wheel structure is formed by two travelling wheels on one side of the towing rod piece, so that towing and turning are convenient; on the other hand, when folding the accomodating of camp car, two walking wheels of one side can realize rotating along with the cooperation of eccentric wheel carrier and steering shaft sleeve, and then laminating folding frame reduces folding volume, is convenient for pack and transportation.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a campsite vehicle structure provided by the utility model.

Fig. 2 is an enlarged schematic view of the structure a in fig. 1.

Fig. 3 is a schematic diagram of a folding state of the camping car provided by the utility model.

Fig. 4 is a schematic diagram of a campsite car hanging lamp state provided by the utility model.

Reference numerals illustrate:

the first frame body 10, the second frame body 20, the upper frame folding member 30, the bottom frame folding assembly 40, the side frame folding assembly 50, the towing bar member 60, the travelling wheels 70 and the chassis resting bar 80;

u-shaped tube 301, flip connector 302;

a first bottom tube 401, a second bottom tube 402, and an intermediate bar 403;

side diagonal bar 501, slider 502, lower diagonal bar 503, upper diagonal bar 504;

a sliding telescopic towing bar 601, an upper pulling bar 611, a lower pulling bar 612, a pulling bar connecting piece 613, a pulling bar locking button 614, a handle 602, a rotating seat 603, a rotating groove 604, a hanging lamp rod 605 and a campsite lamp 606.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

The embodiment of the utility model provides a folding bicycle frame, which comprises: the first frame body 10 and the second frame body 20 are symmetrically arranged, and each of the first frame body 10 and the second frame body 20 at least comprises a transverse section positioned at the bottom and two vertical sections respectively vertically arranged at two ends of the transverse section; the number of the walking wheels 70 is at least four and the walking wheels are distributed at the bottom ends of the two transverse sections in a matrix; the folding members include an upper frame folding member 30, a bottom frame folding assembly 40, and a side frame folding assembly 50 respectively disposed between the first and second frame bodies 10 and 20; the upper frame folder 30, the bottom frame folder 40 and the side frame folder 50 are hinged to each other with respect to the vertical section such that the upper frame folder 30, the bottom frame folder 40 and the side frame folder 50 are extended with the distance of the first and second frame bodies 10 and 20 and form a receiving area for receiving articles;

in this embodiment, in the above-mentioned scheme, the first frame body 10, the second frame body 20 and the folding members are mutually matched, so that the whole folding frame can be extended or contracted, wherein after the folding members are extended, the upper frame folding member 30, the bottom frame folding assembly 40 and the side frame folding assembly 50 can be synchronously extended to form a containing area for placing objects, and it can be understood that the containing area is filled with an inner bag for closing the bottom and the side wall surfaces of the containing area in order to facilitate placing of camping objects;

the bottom frame folding assembly 40 can support the bottom surface of the inner bag, and the side frame folding assembly 50 can enclose the side surface of the inner bag; the upper pocket upper opening's support and expansion in the cooperation upper frame folded piece 30 is to then making the balanced support and the pulling of cloth pocket 3 for the inner pocket expansion effect is better, avoids the inner pocket to open incompletely along with the expansion of folded piece, and simultaneously, the inner pocket can be for a decurrent pressure (for example in the inner pocket self gravity, the weight of the inside placed article of inner pocket) of first support body 10 and second support body 20, and then can make folded piece all around receive a decurrent pressure from last, is favorable to folded piece to maintain the state of expanding, is favorable to maintaining stable expanded state in the folding frame in the use.

In this embodiment, referring to fig. 1, specifically, the upper frame folder 30 includes: the number of the overturning connecting pieces 302 is two and the overturning connecting pieces are symmetrically arranged; the number of the U-shaped pipes 301 is two, the two bending parts of one U-shaped pipe 301 are symmetrically arranged, the two bending parts of the other U-shaped pipe 301 are hinged with the upper parts of the two vertical sections of the second frame body 20, and the two bending parts of the other U-shaped pipe 301 are hinged with the upper parts of the two vertical sections of the first frame body 10; wherein, the same side ends of the two U-shaped pipes 301 are hinged on the same overturning connecting piece 302, so that the two U-shaped pipes 301 overturned from the middle along with the distance between the first frame body 10 and the second frame body 20 to form an upper frame of the containing area;

in this embodiment, in the above-mentioned scheme, in the folded state, the two U-shaped pipes 301 are folded together, and along with the gradual separation of the first frame body 10 and the second frame body 20, the two U-shaped pipes 301 are turned over and opened along the middle turning connection piece 302, and after each turn over 90 ° the two U-shaped pipes form a planar rectangular upper frame connected end to end, it can be understood that after the inner bag is installed in the accommodating area, the upper edge of the inner bag is fixed along the upper frame, so that the upper opening of the inner bag can be effectively ensured to be unfolded and maintained for accommodating articles;

in this embodiment, referring to fig. 1, specifically, the side frame folding assembly 50 includes: the number of the side inclined rods 501 is four, two side inclined rods 501 are symmetrically arranged on opposite sides of the first frame body 10 and the second frame body 20 respectively, the lower ends of the two side inclined rods 501 on the same side are mutually hinged, and the upper ends of the two side inclined rods 501 are respectively hinged to the upper parts of vertical sections of the first frame body 10 and the second frame body 20; the number of the sliding pieces 502 is four, and the sliding pieces are respectively sleeved on the side inclined rods 501 in a sliding way; the number of the lower inclined rods 503 is four, one ends of the lower inclined rods are respectively hinged to the lower parts of the four vertical sections, and the other ends of the lower inclined rods are respectively hinged to the side wall surfaces of the four sliding pieces 502; the upper diagonal rods 504, the number of which is four, one end of which is hinged with the upper frame folding piece 30, and the other end of which is hinged with the side wall surfaces of the four sliding pieces 502 respectively; the chassis rest bars 80, the chassis rest bars 80 are arranged at the lower ends of the middle parts of the two groups of side inclined bars 501 and are positioned on the same axis with the hinging positions of the side inclined bars 501, wherein the chassis rest bars 80 are arranged at the lower ends of the middle parts of the bottom frame folding assemblies 40 so as to strengthen and maintain the horizontal state of the bottom frame folding assemblies 40;

in this embodiment, in the above-mentioned scheme, with the state of fig. 1 as a reference plane, in the folded state, the sliding member 502 is located at the upper position of the side diagonal member 501, and the lower diagonal member 503 and the upper diagonal member 504 are folded to be attached to the side diagonal member 501, and as the first frame 10 and the second frame 20 are gradually separated, the two side diagonal members 501 on the same side turn over along the hinge point, the lower diagonal member 503 and the upper diagonal member 504 are synchronously and cooperatively unfolded to push the sliding member 502 to slide down on the side diagonal member 501 until the folding member is completely opened, the sliding stroke of the sliding member 502 is completed, the shape of the side frame is fixed, and at the same time, the chassis rest bar 80 is located at the middle position of the lower end of the bottom frame folding assembly 40, so as to strengthen and maintain the horizontal state of the opened bottom frame.

In this embodiment, referring to fig. 1, specifically, the bottom frame folding assembly 40 includes two hinged half bottom frames, and two outer ends are provided on the sides of the half bottom frames away from each other, and the two outer ends are hinged to the lower portions of two vertical sections of the first frame 10/the second frame 20, respectively, so that the half bottom frames turn over from the middle along with the separation of the first frame 10 and the second frame 20 to form a bottom frame of a receiving area; half underframe includes: the number of the first bottom pipes 401 is two and the first bottom pipes are symmetrically arranged, and two ends of the first bottom pipes are respectively hinged with the tail ends of the first bottom pipes 401 of the other half-side bottom frames and the lower parts of the vertical sections; the second bottom pipes 402, at least one in number, are connected between the two first bottom pipes 401; intermediate bar 403, which is fixed to the inside of one of the halves of the bottom frame near the hinge, to strengthen the bottom frame.

In this embodiment, in the above-mentioned scheme, in the folded state, the two half bottom frames are folded together from the hinge point in the middle, and along with the gradual separation of the first frame body 10 and the second frame body 20, the two half bottom frames are turned over and opened along the hinge point in the middle, and each half bottom frame is turned over for 90 ° to form a planar bottom frame, and it can be understood that the middle part of the bottom frame is further reinforced by the bottom support of the chassis rest rod 80, so as to reinforce and maintain the horizontal state of the opened bottom frame.

Example 2

The embodiment of the utility model also provides a campsite vehicle, which is provided with the folding frame, and further comprises an inner pocket for closing the bottom and the side wall surface of the containing area and a hauling rod piece 60 for hauling the campsite vehicle, wherein the hauling rod piece 60 comprises: sliding the telescopic boom 601; a handle 602 disposed at the top end of the telescopic boom 601; a rotating seat 603 fixed to the bottom end of the telescopic towing bar 601; the rotating groove 604 is fixed to the lateral section of the second frame 20 and is rotatably connected to the rotating seat 603.

Meanwhile, when the table plate is placed on the campsite vehicle, the planar rectangular upper frame formed by overturning the two U-shaped pipes 301 can effectively ensure stable placement of the table plate, and compared with the folding frame of the campsite vehicle in the current market, the support and the bearing of the table plate are more advantageous.

In this embodiment, referring to fig. 2, the sliding telescopic pulling rod 601 includes a lower pulling rod 612 and an upper pulling rod 611 inserted into the lower pulling rod 612 from the upper portion, a pulling rod connecting piece 613 is sleeved at the top end of the lower pulling rod 612, and a pulling rod locking button 614 for adjusting the combined length of the lower pulling rod 612 and the lower pulling rod 612 is provided on the pulling rod connecting piece 613, it can be understood that a plurality of locking holes are provided on the upper pulling rod 611, the locking pin arranged in the pulling rod connecting piece 613 is pushed to leave the locking holes after the pulling rod locking button 614 is pressed, at this time, the whole length of the sliding telescopic pulling rod 601 can be adjusted, and the matching of the pulling rod locking button 614 and the locking pin is the prior art and will not be repeated here.

In this embodiment, further, referring to fig. 1 and 3, two travelling wheels 70 close to the towing bar are installed in eccentric wheel frames, and the two eccentric wheel frames are symmetrically and rotatably installed on the transverse section of the second frame body 20 through steering shaft sleeves, so that when the folding frame is folded and stored, the two travelling wheels 70 are attached to the folding frame after being turned by 90 degrees, and therefore, on one hand, the camping vehicle provided by the utility model has a universal wheel structure capable of being adjusted in a rotating way, and is convenient for towing and turning; on the other hand, when the campsite car is folded and stored, the two travelling wheels 70 on one side can be matched with the eccentric wheel frame and the steering shaft sleeve, and then fit into the folding frame, so that the folding volume is reduced, and the folding frame is convenient to package and transport.

Still further, referring to fig. 4, at least one plugging hole is formed in the handle 602, and a hanging lamp rod 605 can be plugged into the plugging hole, so that a camp or the like 606 can be conveniently and quickly hung on a camp car through the hanging lamp rod 605, and a user does not need to find the position of the hanging lamp additionally, so that camping and use are facilitated.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims (10)

1. A folding chassis, comprising:

the first frame body and the second frame body are symmetrically arranged, and at least comprise a transverse section positioned at the bottom and two vertical sections respectively vertically arranged at two ends of the transverse section;

the travelling wheels are at least four in number and distributed at the bottom ends of the two transverse sections in a matrix;

the folding piece comprises an upper frame folding piece, a bottom frame folding assembly and a side frame folding assembly which are respectively arranged between the first frame body and the second frame body; the upper frame folding piece, the bottom frame folding assembly and the side frame folding assembly are hinged with the vertical section, so that the upper frame folding piece, the bottom frame folding assembly and the side frame folding assembly stretch along with the first frame body and the second frame body far away from each other and form a containing area for placing objects.

2. The folding chassis of claim 1, wherein: the upper frame folder includes:

the number of the overturning connecting pieces is two and the overturning connecting pieces are symmetrically arranged;

the two U-shaped pipes are symmetrically arranged, two bending parts of one U-shaped pipe are hinged with the upper parts of the two vertical sections of the first frame body, and two bending parts of the other U-shaped pipe are hinged with the upper parts of the two vertical sections of the second frame body;

the tail ends of the same sides of the two U-shaped pipes are hinged to the same overturning connecting piece, so that the two U-shaped pipes can be overturned from the middle along with the distance between the first frame body and the second frame body to form an upper frame of the containing area.

3. The folding bicycle frame of claim 1, wherein said side frame folding assembly comprises:

the four side inclined rods are symmetrically arranged on opposite sides of the first frame body and the second frame body respectively in a group of two, the lower ends of the two side inclined rods positioned on the same side are mutually hinged, and the upper ends of the two side inclined rods are respectively hinged to the upper parts of the vertical sections of the first frame body and the second frame body;

the sliding parts are four in number and are respectively sleeved on the side inclined rods in a sliding manner;

the lower inclined rods are four in number, one ends of the lower inclined rods are respectively hinged to the lower parts of the four vertical sections, and the other ends of the lower inclined rods are respectively hinged to the side wall surfaces of the four sliding pieces;

the upper inclined rods are four in number, one end of each upper inclined rod is hinged with the upper frame folding piece, and the other ends of the upper inclined rods are respectively hinged with the side wall surfaces of the four sliding pieces.

4. A folding chassis according to claim 3, wherein the chassis folding assembly comprises two hinged half-chassis, and the side of the half-chassis away from each other has two outer ends, and the two outer ends are hinged to the lower portions of the two vertical sections of the first/second frames, respectively, so that the half-chassis is turned over from the middle along with the separation of the first and second frames to form the chassis of the accommodation area.

5. The folding chassis of claim 4, wherein: the half bottom frame includes:

the number of the first bottom pipes is two, the first bottom pipes are symmetrically arranged, and two ends of the first bottom pipes are respectively hinged with the tail ends of the first bottom pipes of the other half bottom frame and the lower part of the vertical section;

and the second bottom pipes are at least one in number and are connected between the two first bottom pipes.

6. The folding chassis of claim 4, wherein: the half bottom frame also comprises:

and the middle rod is fixed at the inner position of one half of the bottom frame close to the hinge joint so as to strengthen the strength of the bottom frame.

7. A folding chassis according to claim 3, wherein: the chassis is arranged at the lower ends of the middle parts of the two groups of side inclined rods and is positioned on the same axis with the hinging part of the side inclined rods, wherein the chassis is arranged at the lower ends of the middle parts of the bottom frame folding assemblies so as to strengthen and maintain the horizontal state of the bottom frame folding assemblies.

8. A campsite vehicle having a folding chassis according to any one of claims 1 to 7, further comprising an inner pocket for closing the bottom and side wall surfaces of the receiving area and a towing bar member for towing the campsite vehicle, the towing bar member comprising:

sliding the telescopic towing bar;

the handle is arranged at the top end of the telescopic towing bar;

the rotating seat is fixed at the bottom end of the telescopic towing rod;

and the rotating groove is fixed on the transverse section of the second frame body and is rotationally connected with the rotating seat.

9. The camp vehicle of claim 8, wherein: the sliding telescopic pulling rod comprises a lower pulling rod and an upper pulling rod inserted into the lower pulling rod from the upper part, wherein the top end of the lower pulling rod is sleeved with a pulling rod connecting piece, and the pulling rod connecting piece is provided with a pulling rod locking button for adjusting the combined length of the lower pulling rod and the lower pulling rod.

10. The camp vehicle of claim 8, wherein: the two travelling wheels close to the towing bar are arranged in the eccentric wheel frames, and the two eccentric wheel frames are symmetrically and rotatably arranged on the transverse section of the second frame body through the steering shaft sleeve, so that when the folding frame is folded and stored, the two travelling wheels are attached to the folding frame after being overturned by 90 degrees.