CN222501244U - A linkage type vehicle-mounted lifting tent - Google Patents

Abstract

The utility model discloses a linkage type vehicle-mounted lifting tent which comprises a first underframe, a top frame, two groups of upper layer scissor fork type lifting frames and a driving device, wherein the upper layer scissor fork type lifting frames are arranged between the first underframe and the top frame, the upper layer scissor fork type lifting frames comprise a first bifurcation and a second bifurcation which are hinged in a crossing mode, the upper end and the lower end of the first bifurcation are respectively pivoted on the top frame and the first underframe, the lower end of the first bifurcation and the lower end of the second bifurcation are sliding ends positioned on the same side, the two sliding ends are respectively arranged on the top frame and the first underframe in a sliding mode, the vehicle-mounted lifting tent further comprises a synchronizing rod, the two ends of the synchronizing rod are respectively fixedly connected with two symmetrical sliding ends on two sides, the driving device is connected with the synchronizing rod and the sliding ends to drive the two bifurcation to rotate around a central hinging position to open and close, a sliding rail is arranged at the bottom of the first underframe, and a pulley is arranged on the synchronizing rod, and the synchronizing rod is connected with the sliding rail on the first underframe through the pulley and the sliding rail on the first underframe. The tent lifting device guarantees stability and reliability of tent lifting process.

Description

Linkage type vehicle-mounted lifting tent

Technical Field

The utility model belongs to the technical field of outdoor camping supplies, and particularly relates to a linkage type vehicle-mounted lifting tent.

Background

With the increasing popularization of outdoor activities and camping culture, the vehicle-mounted tent is popular to the vast users as convenient and practical camping equipment. The vehicle-mounted lifting tent is a tent with special design, and is combined with a vehicle (usually SUV, MPV or a vehicle type with a large roof such as a pick-up card) to realize quick unfolding and folding on the roof through a lifting mechanism.

At present, most vehicle-mounted lifting tents in the market adopt a scissor fork type lifting structure, and the structure is excellent in unfolding and folding of the underframe and the top frame, so that convenient operation experience is provided for users. However, these tents often face stability problems during actual use. Specifically, because the scissor type lifting structure lacks enough stability control mechanism in the lifting process, phenomena such as shaking and vibration are easy to occur in the lifting process, so that the comfort level of a user is influenced, the tent structure is possibly damaged for a long time, and the service life of the tent is reduced.

Disclosure of utility model

The utility model aims to provide a linkage type vehicle-mounted lifting tent, which solves the problem of poor structural stability of the tent in the lifting process by improving the structure, prolongs the service life of the product and improves the use comfort of users.

In order to achieve the aim, the utility model adopts the technical scheme that the linkage type vehicle-mounted lifting tent comprises a first underframe, a top frame, two groups of upper layer scissor type lifting frames and a driving device;

The two groups of upper layer scissor type lifting frames are arranged between the first underframe and the top frame and are respectively and symmetrically arranged at two sides of the first underframe so as to drive the top frame to descend to cover the first underframe or ascend away from the first underframe;

Each group of upper layer scissor type lifting frames comprises a first bifurcation and a second bifurcation which are hinged in a crossing way, the upper end and the lower end of the first bifurcation are respectively pivoted on the top frame and the first bottom frame, the lower end of the first bifurcation and the lower end of the second bifurcation are sliding ends positioned on the same side, and the two sliding ends are respectively arranged on the top frame and the first bottom frame in a sliding way;

A synchronizing rod is arranged between the two groups of upper layer scissor type lifting frames, two ends of the synchronizing rod are fixedly connected with symmetrical sliding ends on two sides respectively, and a driving device is connected with and drives the synchronizing rod and the sliding ends connected with the synchronizing rod to slide along the length direction of the first underframe so as to drive the two forks to rotate around the central hinge position to open and close;

The bottom of first chassis is equipped with the slide rail that extends along its length direction, is equipped with a plurality of pulley on the synchronizing lever, and the synchronizing lever passes through the pulley and is connected with the slide rail on the first chassis and slides along the slide rail.

Further, the driving device is an electric driving device or a manual driving device, the output end of the driving device is connected with a ball screw, a screw nut matched and connected with the ball screw is arranged on the synchronous rod, and the ball screw rotates to drive the synchronous rod and the sliding ends at two ends to slide through the matched screw nut.

Further, two ends of the synchronizing rod extend to the same side to form an arc-shaped bracket, the screw nut is arranged on the arc-shaped bracket, and the synchronizing rod drives the synchronizing rod to move together through the arc-shaped bracket, so that sliding ends connected with two ends of the synchronizing rod are driven to slide.

Further, the two sides of the sliding rail of the arched bracket are respectively provided with a pulley, and the arched bracket is connected with the sliding rail on the first underframe through the pulleys and slides along the sliding rail.

Further, two sliding rails are symmetrically arranged at the bottom of the first underframe, and the synchronous rod and the pulleys on the arch-shaped support are symmetrically arranged and respectively matched with the two sliding rails to slide.

Further, a bolt is pivoted on the sliding end connected with the synchronizing rod, a through groove extending along the length direction of the first chassis is formed in the side edge of the first chassis, and the synchronizing rod penetrates through the through groove and is fixedly connected with the bolt, so that the sliding end is synchronously driven to slide along the through groove.

Further, the vehicle-mounted lifting tent further comprises a second chassis and lower layer scissor type lifting frames, wherein the second chassis is arranged below the first chassis, the second chassis is arranged on a vehicle, the lower layer scissor type lifting frames are arranged between the second chassis and the first chassis, the number of the lower layer scissor type lifting frames is two, and the lower layer scissor type lifting frames are symmetrically arranged on two sides of the first chassis respectively;

The lower layer scissor fork lifting frame is the same as the upper layer scissor fork lifting frame in structure and comprises a first bifurcation and a second bifurcation which are hinged in a crossed mode, the upper end and the lower end of the first bifurcation and the upper end of the second bifurcation of the lower layer scissor fork lifting frame are respectively pivoted on the first chassis and the second chassis, the upper end of the first bifurcation and the lower end of the second bifurcation are sliding ends located on the same side, the two sliding ends are respectively arranged on the first chassis and the second chassis in a sliding mode, the two bifurcation are pivoted and opened around a central hinge, the lower end of the first bifurcation of the upper layer scissor fork lifting frame and the upper end of the second bifurcation of the lower layer scissor fork lifting frame are coaxially pivoted and fixedly arranged on the first chassis, and the lower end of the second bifurcation of the upper layer scissor fork lifting frame and the upper end of the first bifurcation of the lower layer scissor fork lifting frame are coaxially pivoted and slidingly arranged on the first chassis.

Further, the side part of the first chassis is rotatably connected with a turning plate, and the turning plate is rotatably folded above the first chassis or rotatably extends to the outer side of the first chassis.

Further, the device further comprises a connecting rod mechanism, one end of the connecting rod mechanism is connected to the turning plate, the other end of the connecting rod mechanism is connected to one sliding end, when the driving device drives the top frame to descend, the sliding end slides to pull the turning plate to rotate and fold above the first bottom frame, and when the driving device drives the top frame to ascend, the sliding end slides to push the turning plate to rotate and extend to the outer side of the first bottom frame.

After the scheme is adopted, the gain effect of the utility model is as follows:

The vehicle-mounted lifting tent introduces the design of the synchronizing rod on the basis of the scissor type lifting structure, and the improvement not only simplifies the driving mechanism, so that the whole tent structure is lighter and more efficient, but also significantly enhances the cooperative action between two groups of upper scissor type lifting frames. Through the accurate regulation and control of synchronizing lever, two sets of lifting frames can realize opening and shutting in step at the lift in-process, have greatly improved the stability of tent at the lift in-process, have effectively avoided rocking and vibrations, have provided more comfortable and safe camping experience for the user.

In addition, in order to further improve the connection stability between the synchronous rod and the first chassis, the utility model particularly designs a sliding rail pulley structure. The pulley slide rail not only realizes the further connection of the synchronizing rod and the first chassis, but also ensures the accuracy of the movement track of the synchronizing rod and prevents the synchronizing rod from shaking or shifting possibly occurring in the sliding process when the driving device drives the synchronizing rod to slide along the length direction of the first chassis, so that the stability and the reliability of the whole structure are improved.

In summary, the vehicle-mounted lifting tent disclosed by the utility model is light and efficient, realizes higher stability and reliability, and provides a safer and more comfortable camping environment for users.

Drawings

FIG. 1 is a perspective view of a top structure of a linked vehicle-mounted lifting tent in an unfolded state according to an embodiment of the present utility model;

FIG. 2 is a perspective view of a bottom structure of a unfolded state of a linked-type vehicle-mounted lifting tent according to an embodiment of the present utility model;

FIG. 3 is a bottom view of a ganged vehicle-mounted lifting tent according to an embodiment of the present utility model;

FIG. 4 is a schematic perspective view of a slide rail, pulley, synchronizing bar, arcuate bracket and driving device according to an embodiment of the present utility model;

FIG. 5 is a schematic view of an arcuate bracket according to an embodiment of the present utility model;

FIG. 6 is a perspective view showing a storage state of a linked type vehicle-mounted lifting tent according to an embodiment of the present utility model;

FIG. 7 is a top perspective view of an embodiment of the present utility model in an expanded state of a ganged vehicle-mounted lift tent;

FIG. 8 is a side view of an embodiment of the present utility model in an expanded state of a linked vehicle-mounted lift tent;

FIG. 9 is a perspective view of the bottom structure of an expanded state of a linked vehicle-mounted lifting tent according to an embodiment of the present utility model;

fig. 10 is a perspective view showing a bottom structure of a storage state of the articulated vehicle-mounted lifting tent according to the embodiment of the present utility model.

Description of the reference numerals:

1. The first underframe, 11, through grooves, 12, sliding rails, 121, sliding grooves, 122 and sliding surfaces;

2. A top frame, a cover edge, a cover;

3. The upper layer scissor type lifting frame comprises a first fork, a second fork, a sliding end and a third fork, wherein the first fork is 31;

4. The synchronous rod, 41, an arch bracket, 42, a lead screw nut, 43 and a bolt;

5. A driving device 51, a ball screw;

6. The pulley block, 61, the first pulley, 62, the second pulley, 63, the third pulley;

7. The device comprises a turning plate, a connecting rod mechanism and a connecting rod mechanism, wherein the turning plate is arranged on the upper surface of the turning plate;

9. a second underframe and a lower layer scissor fork type lifting frame.

Detailed Description

The utility model will be described in detail with reference to the accompanying drawings and specific embodiments.

Embodiment one:

The utility model provides a linkage type vehicle-mounted lifting tent, which is shown in fig. 1 to 6, and comprises a first underframe 1, a top frame 2, two groups of upper layer scissor-fork lifting frames 3 and a driving device 5 for driving lifting, wherein the two groups of upper layer scissor-fork lifting frames 3 are arranged between the first underframe 1 and the top frame 2 and are respectively and symmetrically arranged at two sides of the first underframe 1 so as to drive the top frame 2 to descend to cover the first underframe 1 or ascend away from the first underframe 1.

Each group of upper layer scissor type lifting frames 3 comprises a first fork 31 and a second fork 32 which are hinged in a crossing way, wherein the upper end and the lower end of the first fork 31 and the lower end of the second fork 32 are respectively pivoted on the top frame 2 and the first bottom frame 1, the upper end of the first fork 31 and the lower end of the second fork 32 are also sliding ends 33 positioned on the same side, and the two sliding ends 33 are respectively arranged on the top frame 2 and the first bottom frame 1 in a sliding way;

The two groups of upper layer scissor type lifting frames 3 are provided with a synchronizing rod 4, two ends of the synchronizing rod 4 are respectively and fixedly connected with two symmetrical sliding ends 33, specifically, bolts 43 are pivoted on the sliding ends 33 connected with the synchronizing rod 4 (shown in fig. 1), a through groove 11 extending along the length direction of the first chassis 1 is formed in the side edge of the first chassis 1, and the synchronizing rod 4 is fixedly connected with the bolts 43 through the through groove 11. The driving device 5 is connected with and drives the synchronous rod 4 and the sliding end 33 connected with the synchronous rod to slide along the length direction of the first chassis 1, synchronously drives the sliding end 33 to slide along the through groove 11, and further drives the two branches 31 and 32 to rotate around the central hinge to open and close. The design of the synchronizing rod 4 enables the left and right groups of scissor fork lifting frames to synchronously act, so that stability and balance in the lifting process of the tent are guaranteed.

In order to further improve the stability of the vehicle-mounted lifting tent structure, as shown in fig. 2 to 4, the bottom of the first chassis 1 is particularly provided with a sliding rail 12 extending along the length direction of the first chassis, and a first pulley 61 is arranged on the synchronous rod 4 at a position corresponding to the sliding rail 12. The arrangement of the pulley and the sliding rail 12 further enhances the connection stability of the synchronizing rod 4 with the first chassis 1. The pulley not only realizes the further connection of the synchronizing rod 4 and the first chassis 1, but also smoothly slides in the slide rail 12 when the driving device 5 drives the synchronizing rod 4 to slide along the length direction of the first chassis 1, thereby not only ensuring the accuracy of the movement track of the synchronizing rod 4, but also preventing the synchronizing rod 4 from shaking or shifting possibly occurring in the sliding process, and further improving the stability and reliability of the whole structure.

The driving device 5 according to the present utility model is an electric driving device 5 or a manual driving device 5, and refer to fig. 2 to 4. The output end of the driving device 5 is connected with a ball screw 51, the synchronous rod 4 is provided with a screw nut 42 which is matched and connected with the ball screw 51, and the ball screw 51 rotates to drive the synchronous rod 4 and the sliding ends 33 at the two ends to slide through the matched screw nut 42. Specifically, two ends of the synchronizing rod 4 extend to the same side to form an arc-shaped support 41, a screw nut 42 is arranged on the arc-shaped support 41, the synchronizing rod 4 drives the synchronizing rod 4 to move together through the arc-shaped support 41, and further the sliding ends 33 connected with the two ends of the synchronizing rod 4 are driven to slide, and the arrangement of the arc-shaped support 41 can improve the stability of the movement of the synchronizing rod 4.

The arcuate structure described herein is not limited to an arcuate shape, a portion of an arc or trapezoid, or the like. The arcuate structure may be any shape formed by extending both ends of the synchronizing rod 4 to the same side. The a, b, c in fig. 5 show 3 possible arch cases, respectively, but these examples are not exhaustive, but are intended to illustrate the diversity and flexibility of the arch. In practical applications, the specific shape of the arch may be selected and adjusted according to the actual requirements and use scenarios. Regardless of the shape of the arcuate structure chosen, it is important to ensure that it effectively connects the synchronizing bar 4 with the first chassis 1 and provides sufficient stability and support to ensure the stability and safety of the vehicle-mounted lifting tent during lifting.

As a further improvement of the structure, the arcuate bracket 41 is also provided with pulley structures on both sides of the slide rail 12, and the arcuate bracket 41 is connected with the slide rail 12 on the first chassis 1 by pulleys and slides along the slide rail 12. Specifically, a lateral sliding groove 121 is provided on one side of the sliding rail 12, and a sliding surface 122 (as shown in fig. 4) is provided on the other side of the sliding rail 12, correspondingly, a second pulley 62 is provided on one side of the sliding rail 12 by the arcuate bracket 41, a third pulley 63 is provided on the other side of the sliding rail 12, and the first pulley 61 on the synchronizing rod 4 and the second pulley 62 on the arcuate bracket 41 slide in the lateral sliding groove 121 of the sliding rail 12, and the third pulley 63 slides on the sliding surface 122 of the sliding rail 12. These pulleys on the bow 41 are also provided in order to further enhance the stability of the connection of the bow 41 to the first chassis 1.

The number of slide rails 12 is not particularly limited. However, in order to ensure stability and stress uniformity of the tent during lifting, the slide rails 12 should be uniformly distributed on the first chassis 1. By doing so, the forces generated by the synchronizing rod 4 during sliding can be effectively dispersed, and the risk of local overload is reduced. In a specific design, if a single slide rail 12 is used, it is disposed at the middle position of the first chassis 1 to ensure that the stress balance of the synchronizing rod 4 during sliding is ensured. If two slide rails 12 are selected, the two slide rails 12 should be symmetrically distributed on the first chassis 1, so that stability can be further improved, and consistency of stress on two sides can be ensured.

In this embodiment, the preferred design is to provide two sliding rails 12, wherein a first pulley 61, a second pulley 62 and a third pulley 63 on the same sliding rail 12 are pulley blocks 6, the two sliding rails 12 are symmetrically arranged at the bottom of the first chassis 1, and correspondingly, the same number of pulley blocks 6 are symmetrically arranged on the synchronizing rod 4 and the bow-shaped bracket 41, and the pulley blocks 6 respectively slide on the two sliding rails 12 in a matched manner. By means of the design, the synchronous rod 4 can stably and smoothly slide along the sliding rail 12 under the action of the driving device 5, and stability and reliability of the vehicle-mounted lifting tent are further improved. Meanwhile, friction and abrasion are effectively reduced due to the fact that a plurality of pulleys are used, and the service life of the tent is prolonged.

The working process of the vehicle-mounted lifting tent of the embodiment is as follows:

In the storage process, firstly, the driving device 5 works to enable the ball screw 51 to rotate, the synchronous rod 4 is driven to move rightwards (in the direction shown by F in fig. 2) through the screw nut 42, the synchronous rod 4 moves rightwards and simultaneously drives the two sliding ends 33 connected with the synchronous rod 4 to move along the through groove 11, at the moment, the two branches 31 and 32 of the upper layer scissor type lifting frame 3 are slowly combined, so that the top frame 2 approaches to the first bottom frame 1, and finally, the top frame 2 just covers the first bottom frame 1, and the driving device 5 stops working.

In the unfolding process, the driving device 5 works to enable the ball screw to rotate in the direction, the synchronous rod 4 is driven to move leftwards (the direction opposite to the direction shown by F in fig. 2) through the screw nut 42, the synchronous rod 4 drives the two sliding ends 33 to move reversely along the through groove 11 while moving leftwards, at the moment, the two branches 31 and 32 of the upper layer scissor type lifting frame 3 are slowly unfolded, the top frame 2 is far away from the first bottom frame 1, the top frame 2 is finally unfolded to the limit position, and the driving device 5 stops working.

In order to be completely covered, the outer edge of the top frame 2 forms a cover edge 21 which is bent downwards, and when the top frame 2 descends to cover the first bottom frame 1, the cover edge 21 is coated on the outer side of the first bottom frame 1, so that the top frame 2 and the first bottom frame 1 are folded to form a box-type structure.

In order to ensure that the turning plate 7 can be covered by the top frame 2 after being folded, and also ensure that the turning plate 7 starts to be unfolded after the top frame 2 ascends, the lifting or lowering stroke of the top frame 2 is larger than the folding or unfolding stroke of the turning plate 7.

Referring to fig. 1 and 2, the side portion of the first chassis 1 is rotatably connected with a turning plate 7, and the turning plate 7 is rotatably folded above the first chassis 1 to realize storage, or the turning plate 7 is rotatably extended outside the first chassis 1 to enlarge the movable space of the tent. The turning plate 7 can be unfolded and folded manually or through a link mechanism 8 (fig. 7 and 8) connected with the sliding end 33 of the scissor fork type lifting frame to realize electric and linkage turning. When the driving device 5 drives the top frame 2 to descend, the sliding end 33 slides to pull the turning plate 7 to rotate and fold above the first bottom frame 1, and when the driving device 5 drives the top frame 2 to ascend, the sliding end 33 slides to push the turning plate 7 to rotate and extend to the outer side of the first bottom frame 1. The connecting rod mechanism 8 can be composed of any one of a rack transmission mechanism, a swing rod transmission mechanism, a toothed chain transmission mechanism, a pulley transmission mechanism and a belt pulley transmission mechanism.

In addition, the number of the turning plates 7 is not limited in this case, and it is preferable to design two turning plates 7, and the two turning plates 7 are symmetrically arranged along the same direction.

Embodiment two:

The first embodiment describes a case where the vehicle-mounted lifting tent of the present utility model is designed with only one layer of chassis (the first chassis 1), the first chassis 1 is mounted on a vehicle, and the following embodiment is designed with a double-layer chassis, which can provide an upper accommodation space and a lower accommodation space, and has a larger space.

As shown in fig. 7 to 10, the vehicle-mounted lifting tent of the present utility model further includes a second chassis 9 and a lower scissor lift 10, the second chassis 9 being disposed below the first chassis 1, the second chassis 9 being mounted on the vehicle, the lower scissor lift 10 being disposed between the second chassis 9 and the first chassis 1. The lower layer scissor type lifting frames 10 are also two groups, and are respectively and symmetrically arranged on two sides of the first underframe 1.

As shown in fig. 7 and 8, the lower layer scissor fork 10 has the same structure as the upper layer scissor fork 3, and comprises a first fork 31 and a second fork 32 which are hinged in a crossed manner, wherein the upper end and the lower end of the first fork 31 and the second fork 32 of the lower layer scissor fork 10 are respectively pivoted on the first chassis 1 and the second chassis 9, the lower end of the first fork 31 and the lower end of the second fork 32 are also sliding ends 33 positioned on the same side, the two sliding ends 33 are respectively arranged on the first chassis 1 and the second chassis 9 in a sliding manner, the two forks 31 and 32 are pivoted and opened around a central hinge, the lower end of the first fork 31 of the upper layer scissor fork 3 and the upper end of the second fork 32 of the lower layer scissor fork 10 are coaxially pivoted and fixedly arranged on the first chassis 1, and the lower end of the second fork 32 of the upper layer scissor fork 3 and the upper end of the first fork 31 of the lower layer scissor fork 10 are coaxially pivoted and slidingly arranged on the first chassis 1. By arranging the upper and lower sliding ends 33 together, the upper scissor lift 3 and the lower scissor lift 10 can synchronously move to realize linkage. The first chassis 1 is far away from the second chassis 9 while the top chassis 2 is lifted away from the first chassis 1, and the first chassis 1 is folded over the second chassis 9 while the top chassis 2 is lowered to cover the first chassis 1.

The working process of the vehicle-mounted lifting tent of the embodiment is as follows:

In the storage process, firstly, the driving device 5 works to enable the ball screw 51 to rotate, the synchronous rod 4 is driven to move rightwards (in the direction shown by F in fig. 7) through the screw nut 42, the synchronous rod 4 moves rightwards and simultaneously drives the two sliding ends 33 connected with the synchronous rod to move along the through groove 11, at the moment, the two branches 31 and 32 of the upper layer scissor-fork type lifting frame 3 are slowly combined, the two branches 31 and 32 of the lower layer scissor-fork type lifting frame 10 are also slowly combined, so that the top frame 2 approaches to the first bottom frame 1, the first bottom frame 1 approaches to the second bottom frame 9, and finally, the top frame 2 just covers the first bottom frame 1 and the second bottom frame 9, and the driving device 5 stops working.

In the unfolding process, the driving device 5 works to enable the ball screw to rotate, the synchronous rod 4 is driven to move leftwards (the direction opposite to the direction shown by F in fig. 7) through the screw nut 42, the synchronous rod 4 drives the two sliding ends 33 to move reversely along the through groove 11 while moving leftwards, at the moment, the two branches 31 and 32 of the upper layer scissor fork type lifting frame 3 are slowly unfolded, the two branches 31 and 32 of the lower layer scissor fork type lifting frame 10 are also slowly unfolded, the top frame 2 is enabled to be far away from the first bottom frame 1, the first bottom frame 1 is enabled to be far away from the second bottom frame 9, the top frame 2 and the first bottom frame 1 are finally unfolded to the limit position, and the driving device 5 stops working.

In the claims, specification and drawings hereof, unless explicitly defined otherwise, references to orientation terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc., are used merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, nor should they be construed as limiting the scope of the utility model in particular.

The above embodiments are only preferred embodiments of the present utility model, and are not limited to the present utility model, and all equivalent changes made according to the design key of the present utility model fall within the protection scope of the present utility model.

Claims (9)

1. The linkage type vehicle-mounted lifting tent is characterized by comprising a first underframe, a top frame, two groups of upper layer scissor-fork type lifting frames and a driving device;

The two groups of upper layer scissor type lifting frames are arranged between the first underframe and the top frame and are respectively and symmetrically arranged at two sides of the first underframe so as to drive the top frame to descend to cover the first underframe or ascend away from the first underframe;

Each group of upper layer scissor type lifting frames comprises a first bifurcation and a second bifurcation which are hinged in a crossing way, the upper end and the lower end of the first bifurcation are respectively pivoted on the top frame and the first bottom frame, the lower end of the first bifurcation and the lower end of the second bifurcation are sliding ends positioned on the same side, and the two sliding ends are respectively arranged on the top frame and the first bottom frame in a sliding way;

A synchronizing rod is arranged between the two groups of upper layer scissor type lifting frames, two ends of the synchronizing rod are fixedly connected with symmetrical sliding ends on two sides respectively, and a driving device is connected with and drives the synchronizing rod and the sliding ends connected with the synchronizing rod to slide along the length direction of the first underframe so as to drive the two forks to rotate around the central hinge position to open and close;

The bottom of first chassis is equipped with the slide rail that extends along its length direction, is equipped with a plurality of pulley on the synchronizing lever, and the synchronizing lever passes through the pulley and is connected with the slide rail on the first chassis and slides along the slide rail.

2. The vehicle-mounted linked lifting tent of claim 1, wherein the driving device is an electric driving device or a manual driving device, the output end of the driving device is connected with a ball screw, a screw nut which is matched and connected with the ball screw is arranged on the synchronous rod, and the ball screw rotates to drive the synchronous rod and the sliding ends at the two ends to slide through the matched screw nut.

3. The vehicle-mounted linked lifting tent of claim 2, wherein two ends of the synchronizing rod extend to the same side to form an arc-shaped bracket, the screw nut is arranged on the arc-shaped bracket, and the synchronizing rod drives the synchronizing rod to move together through the arc-shaped bracket, so that sliding ends connected with the two ends of the synchronizing rod are driven to slide.

4. The vehicle-mounted linked lifting tent of claim 3, wherein the arched bracket is provided with pulleys on both sides of the sliding rail, and the arched bracket is connected with the sliding rail on the first underframe through the pulleys and slides along the sliding rail.

5. The linked vehicle-mounted lifting tent of claim 4, wherein two sliding rails are symmetrically arranged at the bottom of the first underframe, and the synchronizing rod and the pulleys on the arched bracket are symmetrically arranged and respectively matched with the two sliding rails to slide.

6. The linkage type vehicle-mounted lifting tent of claim 1, wherein the sliding end connected with the synchronizing rod is pivoted with a bolt, a through groove extending along the length direction of the first chassis is formed in the side edge of the first chassis, and the synchronizing rod penetrates through the through groove and is fixedly connected with the bolt, so that the sliding end is synchronously driven to slide along the through groove.

7. The linkage type vehicle-mounted lifting tent of claim 1, further comprising a second chassis and lower layer scissor type lifting frames, wherein the second chassis is arranged below the first chassis, the second chassis is arranged on the vehicle, the lower layer scissor type lifting frames are arranged between the second chassis and the first chassis, the number of the lower layer scissor type lifting frames is two, and the lower layer scissor type lifting frames are symmetrically arranged on two sides of the first chassis respectively;

The lower layer scissor fork lifting frame is the same as the upper layer scissor fork lifting frame in structure and comprises a first bifurcation and a second bifurcation which are hinged in a crossed mode, the upper end and the lower end of the first bifurcation and the upper end of the second bifurcation of the lower layer scissor fork lifting frame are respectively pivoted on the first chassis and the second chassis, the upper end of the first bifurcation and the lower end of the second bifurcation are sliding ends located on the same side, the two sliding ends are respectively arranged on the first chassis and the second chassis in a sliding mode, the two bifurcation are pivoted and opened around a central hinge, the lower end of the first bifurcation of the upper layer scissor fork lifting frame and the upper end of the second bifurcation of the lower layer scissor fork lifting frame are coaxially pivoted and fixedly arranged on the first chassis, and the lower end of the second bifurcation of the upper layer scissor fork lifting frame and the upper end of the first bifurcation of the lower layer scissor fork lifting frame are coaxially pivoted and slidingly arranged on the first chassis.

8. The linked vehicle-mounted lifting tent of claim 1, wherein the side part of the first chassis is rotatably connected with a turning plate, and the turning plate is rotatably folded above the first chassis or rotatably extended outside the first chassis.

9. The apparatus of claim 8, wherein the linkage mechanism further comprises a link mechanism, one end of the link mechanism is connected to the turning plate, the other end of the link mechanism is connected to one of the sliding ends, when the driving device drives the top frame to descend, the sliding end slides to pull the turning plate to rotate and fold above the first bottom frame, and when the driving device drives the top frame to ascend, the sliding end slides to push the turning plate to rotate and extend to the outer side of the first bottom frame.