Tarpaulin frame capable of ascending and descending and truck with tarpaulin frame

Abstract

The utility model discloses a liftable tarpaulin frame and a truck with the same. A container front frame body of the tarpaulin frame comprises a fixed frame body and a lifting frame body, the fixed frame body comprises two supporting outer sleeves, and screw rods are arranged in the two supporting outer sleeves; the lifting frame body comprises a main lifting frame body and an auxiliary lifting frame body, the two sides of the main lifting frame body are provided with containing frames for containing the tarpaulin, and the main lifting frame body is provided with two supporting inner sleeves matched with the screw rods; the auxiliary lifting frame body comprises a square frame and an adjusting screw rod, the square frame is connected with the main lifting frame body, the bottom of the adjusting screw rod is connected with a motor, the middle of the adjusting screw rod is connected with a steel wire rope driving wheel disc assembly through a nut, and the steel wire rope driving wheel disc assembly comprises two driving wheel discs used for driving a steel wire rope to rotate forwards or reversely. The utility model effectively solves the storage problem when the tarpaulin is not unfolded, and the problems of synchronous lifting of the steel wire ropes and tightening of the steel wire ropes connected end to end. The structure is simple, arrangement is reasonable, lifting adjustment and tarpaulin folding and unfolding work can be better met, and practicability is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to transportation equipment technical field, especially a kind of liftable tarpaulin frame and truck with tarpaulin frame. BACKGROUND

[0002] Tarpaulin frame is the main supporting component for supporting tarpaulin set on truck. The conventional tarpaulin frame mostly uses supporting rod to support tarpaulin, for example, by increasing supporting door frame on the front and rear sides of the cargo box to support tarpaulin, and by tightening steel wire rope to apply supporting force to tarpaulin. But the supporting rod is mostly fixed height, and cannot adjust the height of tarpaulin according to the amount of goods.

[0003] The applicant has been committed to the research of tarpaulin frame. The prior utility model patent CN220314849 discloses a kind of adjustable tarpaulin frame and corresponding truck. The adjustable tarpaulin frame can adjust the height, but when the tarpaulin does not need to be unfolded, the tarpaulin is concentrated on both sides of the tarpaulin frame, which not only occupies a large space, but also is not easy to bind, affecting the operation of the truck. Moreover, the steel wire rope in the tarpaulin frame needs to be wound and unwound by the cooperation of the winding disc mechanism and the unwinding disc mechanism. The structure has the following problems in actual application: the winding disc mechanism and the unwinding disc mechanism must be completely synchronized to smoothly realize the rotation of the steel wire rope, and then drive the tarpaulin to be smoothly rolled up or unfolded, otherwise it is easy to be stuck or to be off the rope, which brings inconvenience to the control of the rolling and unfolding of the tarpaulin.

[0004] Therefore, the existing tarpaulin frame still has disadvantages and needs to be further improved. How to create a new liftable tarpaulin frame and truck with tarpaulin frame, which at least overcomes one of the defects of the existing tarpaulin frame, has become the current industry's goal for improvement. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to provide a liftable tarpaulin frame, which has a storage space for storing tarpaulin by adjusting the entire lifting frame, and overcomes the defect that the steel wire rope is easy to be stuck or off the rope, so that the steel wire rope is smoothly wound and unwound, safe and reliable, thereby overcoming the shortcomings of the existing tarpaulin frame.

[0006] To solve the above technical problems, the utility model provides a liftable tarpaulin frame, which comprises a front frame body and a rear frame body of a cargo box. The front frame body comprises a fixed frame body and a lifting frame body. The fixed frame body comprises two support outer sleeve pipes. The two support outer sleeve pipes are respectively arranged at the center of both sides of the front part of the cargo box. The interiors of the two support outer sleeve pipes are respectively provided with a screw rod. The lower parts of the two support outer sleeve pipes are provided with a tarpaulin frame lifting drive mechanism for driving the two screw rods to rotate synchronously.

[0007] The lifting frame body comprises a lifting main frame body and a lifting auxiliary frame body, the lifting main frame body adopts an n-type frame structure, a vertical part of the n-type frame structure is a containing frame for containing a canopy, and an outer side of the containing frame is provided with an openable and closable door body; two support inner sleeves respectively downwardly inserted into interiors of the support outer sleeves are further provided on a transverse frame body of the n-type frame structure, and the support inner sleeves are threadedly matched with the screw rods;

[0008] The lifting auxiliary frame body comprises a square frame and an adjusting screw rod arranged at a middle part of the square frame, the square frame is arranged at a middle of the two support outer sleeves and is fixedly connected with an upper part of the transverse frame body of the n-type frame structure, the adjusting screw rod is rotatably connected with middle parts of upper and lower cross bars of the square frame through bearings, a bottom end of the adjusting screw rod is downwardly extended and connected with a first lifting motor, and a middle part of the adjusting screw rod is connected with a steel wire rope driving wheel disc assembly through a nut, the steel wire rope driving wheel disc assembly comprises two driving wheel discs arranged at two sides of the adjusting screw rod respectively, the driving wheel discs are used for sleeving and driving a steel wire rope to rotate forwardly or reversely, when the first lifting motor drives the adjusting screw rod to rotate, the steel wire rope driving wheel disc assembly is adjusted upwardly or downwardly relative to the adjusting screw rod, so that the steel wire rope is adjusted in tightness, and when the canopy frame lifting driving mechanism drives the two screw rods to rotate synchronously, the two screw rods drive the support inner sleeves to lift synchronously, and then drive the lifting main frame body and the lifting auxiliary frame body to lift synchronously, and drive the steel wire rope to lift synchronously.

[0009] Further improvement, an inner slide channel is arranged at an inner side of the support outer sleeve, an outer side of a vertical bar of the square frame is provided with a first guide wheel extending to the inner slide channel, and the first guide wheel is used for guiding lifting adjustment of the square frame.

[0010] Further improvement, the steel wire rope driving wheel disc assembly further comprises a guide unit, the guide unit comprises a guide sleeve and a connecting rod, the guide sleeve is sleeved at an outer periphery of the vertical bar of the square frame, one end of the connecting rod is fixedly connected with the guide sleeve, and the other end is fixedly connected with a bottom part of the steel wire rope driving wheel disc assembly.

[0011] Further improvement, an outer slide channel is arranged at an outer side of the support outer sleeve, an inner side of the containing frame is provided with a second guide wheel extending to the outer slide channel, and the second guide wheel is used for guiding lifting adjustment of the n-type frame structure.

[0012] Further improvement, the driving wheel disc comprises a basket lifter and a rotating wheel, the rotating wheel is arranged at a wire inlet end of the basket lifter, and the basket lifter is used for realizing forward or reverse rotation of the steel wire rope.

[0013] Further improvements include two symmetrically arranged wire rope guiding assemblies. Each wire rope guiding assembly includes a first steering wheel group and a second steering wheel group located at the top of the transverse frame of the n-shaped frame structure. The first steering wheel group is located above the corresponding drive wheel and includes a pay-off wheel and a take-up wheel. The second steering wheel group is located at the edge of the transverse frame of the n-shaped frame structure and includes a pay-off wheel group and a take-up wheel group. Both the pay-off wheel group and the take-up wheel group consist of two axially perpendicular guide wheels for turning the wire rope in the horizontal direction.

[0014] In a further improvement, the tarpaulin frame lifting drive mechanism includes a drive motor, a drive link, and a bevel gear assembly. The drive link is located at the bottom middle of the two supporting outer sleeves, and a gear disk is located in the middle of the drive link. The drive motor drives the gear disk to rotate. The bevel gear assembly is located at the bottom of the supporting outer sleeve. The first bevel gear of the bevel gear assembly is fixedly connected to the bottom end of the screw, and the second bevel gear of the bevel gear assembly is fixedly connected to the end of the drive link. When the drive motor drives the gear disk to rotate, the drive link drives the two screws to rotate synchronously through the bevel gear assembly.

[0015] As a further improvement, a shielding cap frame is provided at the top of the horizontal frame of the n-shaped frame structure.

[0016] In a further improvement, the rear frame of the cargo box adopts two electric telescopic rods respectively set on both sides of the rear of the cargo box, and the top of each of the two electric telescopic rods is provided with a steering wheel for the wire rope to be looped and rotated.

[0017] As another improvement of this utility model, this utility model also provides a truck with a tarpaulin frame, the truck including the above-mentioned liftable tarpaulin frame, and a steel wire rope disposed between the front frame and the rear frame of the cargo box.

[0018] With this design, the present invention has at least the following advantages:

[0019] 1. This utility model of a liftable tarpaulin frame modifies the structure of the fixed frame and the lifting frame in the front frame of the cargo box. The lifting main frame is configured as an n-shaped frame structure with two accommodating frames on both sides to hold the tarpaulin. This allows the tarpaulin to be neatly and centrally stored when not unfolded, without occupying space on both sides of the cargo box, maintaining a clean appearance and not affecting vehicle movement, thus greatly improving practicality. Furthermore, by adding a lifting sub-frame and installing a wire rope drive wheel assembly on it, the wire rope drive wheel assembly can be raised and lowered synchronously with the lifting frame. This ensures that the wire rope can rise and fall with the tarpaulin frame during lifting and lowering without any entanglement or restriction, making it simple, convenient, and highly practical.

[0020] 2. The drive wheel assembly on the wire rope drive wheel creates a seamless, end-to-end connection for the wire rope. Furthermore, the adjusting screw on the lifting subframe engages with the threaded screw of the wire rope drive wheel assembly, allowing the wire rope to rotate at the drive wheel and its tension to be adjusted, ensuring it remains taut at all times. Adjustment is simple and convenient, smoothly completing the unfolding or retracting of the tarpaulin. This structure avoids the drawback of existing wire take-up and release mechanisms requiring complete synchronization, completely preventing wire rope detachment accidents.

[0021] 3. Furthermore, by using the slide rails on the inner and outer sides of the supporting outer sleeve and the corresponding guide wheels, the entire lifting frame can be raised and lowered smoothly along the fixed frame, ensuring safety and reliability.

[0022] 4. Furthermore, by simplifying the structure of the rear frame of the cargo box, it can be raised and lowered synchronously with the front frame of the cargo box using only two electric telescopic rods. This allows for simple structure, easy operation, and reduced costs. Attached Figure Description

[0023] The above is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, the following describes this utility model in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of the front frame of the cargo box of the adjustable tarpaulin frame of this utility model.

[0025] Figure 2 This is a schematic diagram of the bevel gear assembly in the front frame of the cargo box of this utility model.

[0026] Figure 3 This is a side view of the structure of the adjustable tarpaulin frame for trucks. Detailed Implementation

[0027] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0028] See attached document Figure 1 As shown, the liftable tarpaulin frame in this embodiment includes a front frame and a rear frame, which are used to fix the front and rear of the cargo box of the truck, respectively.

[0029] The front frame body of the container comprises a fixed frame body 1 and a lifting frame body 2. The fixed frame body 1 comprises two support outer sleeves 11, which are fixed at the center of the front part of the container 10 respectively. The inside of each of the two support outer sleeves 11 is provided with a screw rod 12, and the lower part of each of the two support outer sleeves 11 is provided with a tarpaulin frame lifting driving mechanism 3 for driving the two screw rods 12 to rotate synchronously.

[0030] The tarpaulin frame lifting driving mechanism 3 comprises a driving motor 31, a driving connecting rod 32 and a bevel gear assembly 33. The driving connecting rod 32 is arranged in the middle of the bottom of the two support outer sleeves 11 and is fixed to the front part of the container through bearings. The middle part of the driving connecting rod 32 is provided with a gear disc 34, and the driving motor 31 fixed to the front part of the container drives the gear disc 34 to rotate, thereby driving the driving connecting rod 32 to rotate. The bevel gear assembly 33 is arranged at the bottom of the support outer sleeve 11. As shown in the accompanying drawings, the bevel gear assembly 33 in the embodiment is detachable independently, which comprises a first bevel gear 331 fixedly connected to the bottom end of the screw rod 12 and a second bevel gear 332 fixedly connected to the end of the driving connecting rod 32. When the driving motor 31 drives the gear disc 34 to rotate, the driving connecting rod 32 drives the two screw rods 12 to rotate synchronously through the bevel gear assembly 33. Figure 2

[0031] Referring again to the accompanying drawings, the lifting frame body 2 comprises a lifting main frame body 21 and a lifting auxiliary frame body 22. The lifting main frame body 21 adopts an n-shaped frame structure, the vertical part of the n-shaped frame structure is a containing frame 211 for containing tarpaulins, and the outer side of the containing frame 211 is provided with an openable and closable door body 2111 for containing the tarpaulins that are not unfolded. The transverse frame body 212 of the n-shaped frame structure is further provided with two support inner sleeves 13 respectively inserted into the inside of the support outer sleeves 11 downward, and the support inner sleeves 13 are threadedly matched with the screw rods 12. That is, the support inner sleeves 13 can drive the n-shaped frame structure to move up and down as a whole under the rotation of the screw rods 12. Figure 1

[0032] ​​The lifting sub-frame 22 comprises a square frame 221 and an adjusting screw 222 arranged in the middle of the square frame 221. The square frame 221 is arranged in the middle of the two support outer sleeve pipes 11, and the upper part thereof is fixedly connected with the transverse frame 212 of the n-shaped frame structure, so as to realize the lifting of the lifting main frame 21 and the lifting of the lifting sub-frame 22. The adjusting screw 222 is rotatably connected with the middle of the upper and lower horizontal rods of the square frame 221 through a bearing, the bottom end of the adjusting screw 222 extends downward and is connected with a first lifting motor 223. The middle of the adjusting screw 222 is connected with a steel wire rope driving wheel disc assembly through a nut 224. When the first lifting motor 223 drives the adjusting screw 222 to rotate, the steel wire rope driving wheel disc assembly adjusts up and down relative to the adjusting screw 222 with the nut 224.

[0033] The steel wire rope driving wheel disc assembly in the embodiment comprises two driving wheel discs 225 arranged on the two sides of the adjusting screw 222 respectively. The driving wheel disc 225 comprises a basket lifter 2251 and a rotating wheel 2252. The basket lifter 2251 adopts an existing structure, can realize the rotation and compression of the steel wire rope 20, and can realize the forward or reverse rotation of the steel wire rope 20 under the action of the motor thereof. The rotating wheel 2252 is arranged at the wire inlet end of the basket lifter 2251, and is used for forming smooth rotation of the steel wire rope 20. The basket lifter 2251 can realize the butt joint of the steel wire rope 20 on one side of the canopy frame without a breakpoint, and the motor of the basket lifter 2251 can realize the forward or reverse driving of the rotating steel wire rope 20, thereby driving the canopy on the steel wire rope 20 to unfold or fold, and further simplifying the movement of the steel wire rope. When the steel wire rope driving wheel disc assembly adjusts up and down relative to the adjusting screw 222, the tightness of the butt joint steel wire rope 20 is adjusted, the steel wire rope 20 is always in a tight state during use, the disadvantages that the existing take-up mechanism and pay-off mechanism need to work completely synchronously are avoided, and the accident of the falling of the steel wire rope is completely avoided.

[0034] On this basis, when the canopy frame lifting driving mechanism 3 drives the two screw rods 12 to rotate synchronously, the two screw rods 12 drive the support inner sleeve pipes 13 to lift synchronously, thereby driving the lifting main frame 21 and the lifting sub-frame 22 to lift synchronously, and driving the steel wire rope driving wheel disc assembly to lift synchronously, so as to realize the synchronous lifting of the steel wire rope 20, and ensure that the steel wire rope 20 does not affect the lifting adjustment of the canopy frame.

[0035] More specifically, the inner side of the support outer sleeve 11 is provided with an inner slide 111, and the vertical rod of the square frame 221 is provided with a first guide wheel 112 extending to the inner slide 111, which is used to guide the lifting adjustment of the square frame 221. The outer side of the support outer sleeve 11 is provided with an outer slide 113, and the inner side of the containing frame 211 is provided with a second guide wheel 114 extending to the outer slide 113, which is used to guide the lifting adjustment of the n-shaped frame structure. And the left and right symmetry of the entire tarpaulin frame further ensures the stable movement of the tarpaulin frame.

[0036] In addition, the steel wire rope driving wheel disc assembly also includes a guide unit. The guide unit includes a guide sleeve 226 and a connecting rod 227. The guide sleeve 226 is sleeved on the outer periphery of the vertical rod of the square frame 221, and the connecting rod 227 is fixedly connected at one end to the guide sleeve 226 and at the other end to the bottom of the steel wire rope driving wheel disc assembly. And the connecting rod 227 adopts a telescopic sleeve, which is convenient for installation and disassembly.

[0037] The liftable tarpaulin frame of the embodiment also includes two sets of symmetrically arranged steel wire rope guide assemblies. The steel wire rope guide assembly includes a first steering wheel group 201 and a second steering wheel group 202 arranged at the top end of the horizontal frame body of the n-shaped frame structure. The first steering wheel group 201 is arranged above the corresponding driving wheel disc 225 and includes a pay-off wheel 2011 and a take-up wheel 2012. The second steering wheel group 202 is arranged at the edge of the horizontal frame body 212 of the n-shaped frame structure and includes a pay-off wheel group 2021 and a take-up wheel group 2022. The pay-off wheel group 2021 and the take-up wheel group 2022 each consist of two axially perpendicular guide wheels, which are used to realize the steering of the steel wire rope 20 in the horizontal direction. In use, the steel wire rope 20 that is connected at the head and tail is discharged from the outgoing end of the driving wheel disc, realizes the steering of the steel wire rope from the vertical to the horizontal through the pay-off wheel 2011, realizes the horizontal steering of the steel wire rope along the horizontal frame body 212 to the rear end of the container through the pay-off wheel group 2021, then returns to the take-up wheel group 2022 after steering through the reversing wheel at the rear end of the container, and then realizes the downward steering through the take-up wheel 2012, enters the driving wheel disc through the reversing wheel 2252, and realizes the connection of the steel wire rope at the head and tail.

[0038] Referring to the accompanying Figure 3 In the embodiment, the rear frame body of the container 10 adopts two electric telescopic rods 4 arranged at the two sides of the rear end of the container 10. The top end of each electric telescopic rod 4 is provided with a steering wheel 41 for sleeving and reversing the steel wire rope 20. Specifically, the electric telescopic rod 4 includes an outer sleeve 42 and an inner sleeve 43, and a motor 44 arranged at the bottom of the outer sleeve. The motor 44 drives the inner sleeve 43 to ascend and descend relative to the outer sleeve 42 through a screw rod.

[0039] The two electric telescopic rods 4 of the container rear frame body in the embodiment are used to lift and lower in coordination with the lifting of the container front frame body, so that the steel wire rope 20 sleeved between the container front frame body and the container rear frame body is lifted and lowered synchronously.

[0040] In addition, the top end of the transverse frame body 212 of the n-shaped frame structure in the container front frame body is also provided with a sheltered hat rack 23, which is used to set a sheltering tarpaulin, and the lower part of the lifting frame and the tarpaulin are sheltered, thereby achieving a better waterproof and sun-proof effect.

[0041] The above-mentioned liftable tarpaulin rack is fixed on the container of the truck, and two steel wire ropes 20 are symmetrically installed, and the tarpaulin can be hung through the setting of a plurality of tarpaulin hanging connectors on the steel wire rope 20. When the steel wire rope 20 is installed, the tightness of the steel wire rope 20 can be adjusted by starting the first lifting motor 223. After the steel wire rope 20 is adjusted in place, when it is necessary to lift the tarpaulin rack, the lifting frame 2, the steel wire rope 20 and the truck container rear telescopic rod can be lifted synchronously by simultaneously starting the driving motor 31 and the motor of the truck container rear telescopic rod, so as to complete the lifting of the tarpaulin rack. After the tarpaulin rack is lifted in place, the tarpaulin can be unfolded by simultaneously starting the motors of the two side hanging basket lifters in the steel wire rope driving wheel disc assembly, so as to achieve the purpose of covering the container with the tarpaulin. When it is necessary to fold the tarpaulin, the tarpaulin is first folded by reversing the motors of the two side hanging basket lifters; after the tarpaulin is folded in place, the lifting frame 2, the steel wire rope 20 and the truck container rear telescopic rod can be lowered synchronously by simultaneously reversing the driving motor 31 and the motor of the truck container rear telescopic rod, so as to complete the lowering of the tarpaulin rack; finally, the folded tarpaulin is folded in the containing frame 211, the door body 2111 is closed, and the tarpaulin is stored.

[0042] The utility model discloses a change lifting frame's structure in container front frame body sets up two sides containing frame for containing tarpaulin, provides favorable condition for the centralized storage of tarpaulin, ingenious and practical, provides effective solution for the problem of the existing truck tarpaulin occupying the space of both sides of the container, and it is very practical. And through the ingenious setting of the lifting sub-frame, the synchronous lifting of the steel wire rope is ensured, and the pulling of the steel wire rope during the lifting of the tarpaulin rack is avoided. Further, by setting the steel wire rope driving wheel disc assembly composed of the hanging basket lifter and the rotary wheel, the steel wire rope can be connected at the head and tail and driven in rotation, so that the steel wire rope is not easily jammed or fallen off due to the existing take-up mechanism and pay-off mechanism. By adjusting the screw rod and the square frame nut, the tightness of the driving wheel disc on the steel wire rope is adjusted, so that the steel wire rope is always in a tight working state during use.

[0043] The utility model discloses a simple structure, reasonable setting, low in cost, can better satisfy the lifting adjustment and tarpaulin retraction work, and the practicality is stronger.

[0044] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, and the person skilled in the art makes some simple modification, equivalent change or modification by using the disclosed technical content, and all falls within the protection scope of the utility model.

Claims

1. A collapsible tarpaulin stand comprising a front box frame body and a rear box frame body, characterized in that, The front frame body of the container comprises a fixed frame body and a lifting frame body, the fixed frame body comprises two support outer sleeves, the two support outer sleeves are respectively arranged at the center of the two sides of the front part of the container, the inner part of the two support outer sleeves is respectively provided with a screw rod, and the lower part of the two support outer sleeves is provided with a tarpaulin frame lifting driving mechanism for driving the two screw rods to rotate synchronously; The lifting frame body comprises a lifting main frame body and a lifting auxiliary frame body, the lifting main frame body adopts an n-shaped frame structure, the vertical part of the n-shaped frame structure is a containing frame for containing tarpaulin, the outer side of the containing frame is provided with an openable and closable door body, the transverse frame body of the n-shaped frame structure is further provided with two support inner sleeves respectively inserted into the inner part of the support outer sleeves, and the support inner sleeves are threadedly connected with the screw rods; The lifting auxiliary frame body comprises a square frame and an adjusting screw rod arranged at the middle part of the square frame, the square frame is arranged at the middle of the two support outer sleeves, and the upper part thereof is fixedly connected with the transverse frame body of the n-shaped frame structure, the adjusting screw rod is rotatably connected with the middle part of the upper and lower horizontal rods of the square frame through a bearing, the bottom end of the adjusting screw rod is extended downward to be connected with a first lifting motor, and the middle part of the adjusting screw rod is connected with a steel wire rope driving wheel disc assembly through a nut, the steel wire rope driving wheel disc assembly comprises two driving wheel discs arranged at the two sides of the adjusting screw rod respectively, the driving wheel discs are used for sleeving a steel wire rope and driving the steel wire rope to rotate forwardly or reversely, when the first lifting motor drives the adjusting screw rod to rotate, the steel wire rope driving wheel disc assembly is adjusted upwardly or downwardly relative to the adjusting screw rod, so as to realize the tension adjustment of the steel wire rope, when the tarpaulin frame lifting driving mechanism drives the two screw rods to rotate synchronously, the two screw rods drive the support inner sleeves to lift synchronously, and then drive the lifting main frame body and the lifting auxiliary frame body to lift synchronously, and drive the steel wire rope to lift synchronously.

2. The liftable canopy support of claim 1, wherein, The inner side of the support outer sleeve is provided with an inner slide, the outer side of the vertical rod of the square frame is provided with a first guide wheel extending to the inner slide, and the first guide wheel is used for guiding the lifting adjustment of the square frame.

3. The liftable canopy support of claim 2, wherein, The steel wire rope driving wheel disc assembly further comprises a guide unit, the guide unit comprises a guide sleeve and a connecting rod, the guide sleeve is sleeved on the outer periphery of the vertical rod of the square frame, one end of the connecting rod is fixedly connected with the guide sleeve, and the other end is fixedly connected with the bottom of the steel wire rope driving wheel disc assembly.

4. The liftable tarpaulin stand according to claim 3, characterized in that The outer side of the support outer sleeve is provided with an outer slide, the inner side of the containing frame is provided with a second guide wheel extending to the outer slide, and the second guide wheel is used for guiding the lifting adjustment of the n-shaped frame structure.

5. The collapsible canopy stand of any one of claims 1 to 4, wherein, The driving wheel disc comprises a basket lifter and a rotating wheel, the rotating wheel is arranged at the wire inlet end of the basket lifter, and the basket lifter is used for realizing the forward rotation or reverse rotation of the steel wire rope.

6. The liftable canopy support of claim 5, wherein, Also comprising two sets of symmetrically arranged steel wire rope guiding assemblies, the steel wire rope guiding assemblies comprising a first set of steering wheels arranged at the top end of the lateral frame body of the n-shaped frame structure, the first set of steering wheels being arranged above the corresponding driving wheel disc and comprising a pay-off wheel and a take-up wheel; and a second set of steering wheels arranged at the edge of the lateral frame body of the n-shaped frame structure, the second set of steering wheels comprising a pay-off wheel set and a take-up wheel set, the pay-off wheel set and the take-up wheel set each being composed of two axially perpendicular guide wheels, for realizing the steering of the steel wire rope in the horizontal direction.

7. The liftable canopy support of claim 1, wherein, The tarpaulin frame lifting driving mechanism comprises a driving motor, a driving connecting rod and a bevel gear assembly, the driving connecting rod being arranged at the middle of the bottom of the two support outer sleeve pipes, and the middle part of the driving connecting rod being provided with a gear disc, the driving motor driving the gear disc to rotate, the bevel gear assembly being arranged at the bottom of the support outer sleeve pipe, the first bevel gear of the bevel gear assembly being fixedly connected with the bottom end of the screw rod, and the second bevel gear of the bevel gear assembly being fixedly connected with the end part of the driving connecting rod, so that when the driving motor drives the gear disc to rotate, the driving connecting rod drives the two screw rods to synchronously rotate through the bevel gear assembly.

8. The liftable canopy support of claim 1, wherein, The top end of the lateral frame body of the n-shaped frame structure is provided with a shielding hat frame.

9. The liftable canopy support of claim 1, wherein, The rear frame body of the cargo box is provided with two electric telescopic rods arranged at the two sides of the rear part of the cargo box, and the top end of each of the two electric telescopic rods is provided with a steering wheel for sleeving and turning of the steel wire rope.

10. A truck with a tarpaulin frame, characterized in that The truck comprises the liftable tarpaulin frame according to any one of claims 1 to 9, and a steel wire rope arranged between the front frame body and the rear frame body of the cargo box.

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