A tarpaulin folding rack with anti-impact function

Abstract

The present invention belongs to the technical field of tarpaulins, and particularly relates to a tarpaulin folding rack with an impact-proof function, which comprises a folding mechanism and a connecting assembly. The folding mechanism includes a skeleton, a first support seat, a second support seat, a swing arm, an actuating mechanism, a first steel wire rope and a second steel wire rope. The skeleton includes a plurality of portal frames, the bottom ends of the portal frames are hinged to the first support seat, the lower end of the swing arm is hinged to the first support seat, and the upper end is hinged to the second connecting rod of the portal frame. The actuating mechanism includes two telescopic driving devices, each telescopic driving device includes a telescopic rod and a device main body, the device main body is hinged to the second support seat, the telescopic rod is hinged to the upper end of the swing arm, one end of the first steel wire rope is fixed to the telescopic rod and the other end is fixed to the second connecting rod of the portal frame, and the portal frames are fixedly connected by the second steel wire rope. This device is convenient to operate, reduces the impact during the folding and unfolding process, and improves the service life.

Description

Technical Field

[0001] The present invention belongs to the technical field of tarpaulins, and particularly relates to a tarpaulin folding frame with an impact prevention function. Background Art

[0002] In the existing medical waste disinfection vehicle, a folding tarpaulin is provided at the top. The folding frame of the tarpaulin is generally manually folded, which is time-consuming and laborious during folding. Moreover, it is very difficult for a single person to complete the folding work for a large-sized tarpaulin. In addition, the folding frame mostly uses flexible materials. Due to the influence of its own gravity, during unfolding or folding, the generated inertia will cause the folding frame and the tarpaulin to be damaged by impact, reducing the service life. If the unfolding is not in place, it will also cause waste gas leakage, affecting the safety of the disinfection vehicle during transportation.

[0003] Therefore, there is an urgent need to design a tarpaulin folding frame with an impact prevention function. Summary of the Invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a tarpaulin folding frame with an impact prevention function, which includes a folding mechanism and a plurality of connection components. The folding mechanism includes a skeleton, two first support seats, two second support seats, two swing arms, an actuating mechanism, a first steel wire rope and a second steel wire rope. The skeleton includes a plurality of portal frames, and a tarpaulin is arranged outside the plurality of portal frames. The portal frame is composed of a first connecting rod and two second connecting rods fixedly connected to the left and right sides of the first connecting rod. The two first support seats are respectively arranged on the left and right sides of the skeleton, and the bottom ends of the left and right sides of the plurality of portal frames are respectively rotatably connected to the corresponding first support seats through pin shafts. A pulley seat is respectively arranged on the front and rear sides of each support seat, and a fixed pulley is arranged on the pulley seat. The two second support seats are respectively arranged corresponding to the front sides of the two first support seats. The two swing arms are respectively arranged on the left and right sides of the skeleton. The lower end of each swing arm is respectively rotatably connected to the corresponding first support seat, and the upper end of the swing arm is hinged to the second connecting rod of the portal frame located in the innermost side of the skeleton. The actuating mechanism includes two telescopic driving devices respectively arranged on the left and right sides of the skeleton. The telescopic driving device includes a telescopic rod and a device body for driving the telescopic rod to perform telescopic operation. The device body is hinged to the corresponding second support seat, and the end of the telescopic rod is hinged to the upper end of the corresponding swing arm. One end of the first steel wire rope sequentially bypasses the fixed pulleys on the two pulley seats and is fixed to the end of the telescopic rod of the actuating mechanism. The other end of the first steel wire rope is fixed to the second connecting rod of the portal frame located in the outermost side of the skeleton. The second connecting rods between the plurality of portal frames are respectively fixedly connected together through the second steel wire rope. The plurality of connection components are respectively arranged on the plurality of portal frames for connecting the tarpaulin and the portal frame.

[0005] Preferably, fixed buckles are provided on the tarpaulin.

[0006] Preferably, the connecting component includes a fixed seat, a guide rod and a telescopic spring. The fixed seat is fixed on the first connecting rod and the second connecting rod of the portal frame. One end of the guide rod is provided with a fixing hole adapted to the fixing buckle on the tarpaulin. The other end of the guide rod is hinged to the fixed seat. At least one through hole is provided on the guide rod. One end of the telescopic spring is fixed in any one of the through holes of the guide rod, and the other end of the telescopic spring is fixedly connected to the fixed seat. According to the size of the telescopic spring in the free state, one end of the telescopic spring is fixed in a suitable through hole on the guide rod, and the fixing buckle on the tarpaulin is fixed in the fixing hole of the guide rod. When the tarpaulin is unfolded, the tarpaulin drives the guide rod to rotate, and the guide rod drives the telescopic spring to stretch until the folding mechanism completely unfolds the tarpaulin; when the tarpaulin is folded, the guide rod rotates back under the action of the contraction elastic force of the telescopic spring and folds the tarpaulin until the folding mechanism completely folds the tarpaulin.

[0007] Preferably, the telescopic driving device is an electric push rod, a hydraulic cylinder or a cylinder, and the electric push rod, the hydraulic cylinder and the cylinder are all conventional technical means in the prior art.

[0008] Preferably, bolt holes are provided on the first support seat, the second support seat and the pulley seat, and the first support seat, the second support seat and the pulley seat can be fixed on the vehicle body of the disinfection vehicle by bolts.

[0009] The present invention further includes other components that can make a tarpaulin folding frame with an anti-impact function work properly, which are all conventional technical means in the art. In addition, the devices or components not defined in the present invention all adopt conventional technical means in the art.

[0010] The working principle of the present invention is that when the tarpaulin needs to be unfolded, the device body of the telescopic driving device contracts the telescopic rod, driving the upper end of the swing arm to move downward. At the same time, the swing arm drives the second connecting rod of the portal frame located in the innermost part of the framework to move downward. At this time, the portal frame located in the innermost part of the framework is set as the portal frame at the head end. Since the second connecting rods of each portal frame are fixedly connected to each other through the second steel wire ropes respectively, and the second connecting rod of the portal frame located in the outermost part of the framework pulls and tightens the first steel wire rope. At this time, the portal frame located in the outermost part of the framework is set as the portal frame at the tail end. In this way, several portal frames are mutually pulled through the second steel wire ropes. The previous portal frame provides power for the next portal frame, and the next portal frame provides anti-impact force for the previous portal frame. Furthermore, several portal frames are unfolded in sequence, and the tarpaulin is unfolded through the connecting component. After the telescopic rod of the telescopic driving device contracts to the set length, each portal frame is unfolded in place. At this time, the tarpaulin is completely unfolded. In addition, the portal frames at both the head and tail ends are fixed to each other under the traction of the first steel wire rope, enabling the unfolded folding mechanism and the tarpaulin to be well fixed. When the tarpaulin needs to be folded, the device body of the telescopic driving device stretches the telescopic rod, driving the upper end of the swing arm to move upward, thereby driving the portal frame at the head end to rotate upward and backward. And under the traction of the first steel wire rope, the portal frame at the tail end rotates backward. At the same time, under the traction of the second steel wire rope, each portal frame rotates backward in sequence, and the tarpaulin is folded through the connecting component. After the telescopic rod of the telescopic driving device stretches to the set length, each portal frame is folded together. At this time, the tarpaulin is folded up.

[0011] The beneficial effects of the present invention are as follows. Through the design of the folding mechanism and the connecting component, when folding the tarpaulin, it saves manpower, and a single person can complete the folding operation for a large-sized tarpaulin. In addition, whether during unfolding or folding, the inertia generated will not cause the folding frame and the tarpaulin to be damaged by impact, improving the service life. Moreover, it can ensure that the tarpaulin is unfolded in place, avoid waste gas leakage, and ensure the safety of the disinfection vehicle during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the structure of the folding mechanism of the present invention.

[0015] Figure 3 It is a schematic diagram of the structure of the connecting component of the present invention.

[0016] In the figure: 1. Connecting component, 2. Skeleton, 3. First support seat, 4. Second support seat, 5. Swing arm, 7. First steel wire rope, 8. Second steel wire rope, 9. Gantry frame, 10. Tarpaulin, 11. First connecting rod, 12. Second connecting rod, 13. Pulley seat, 14. Telescopic driving device, 15. Telescopic rod, 16. Device main body, 17. Fixed seat, 18. Guide rod, 19. Telescopic spring, 20. Fixed hole, 21. Through hole. Detailed implementation mode

[0017] The present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention and specific embodiments. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention.

[0018] Embodiment 1

[0019] As Figures 1-3As shown in the figure, the present invention provides a tarpaulin folding rack with an anti-impact function, which includes a folding mechanism and a plurality of connecting components 1. The folding mechanism includes a skeleton 2, two first support seats 3, two second support seats 4, two swing arms 5, an actuating mechanism, a first steel wire rope 7 and a second steel wire rope 8. The skeleton 2 includes a plurality of portal frames 9, and a tarpaulin 10 is arranged outside the plurality of portal frames 9. The portal frame 9 is composed of a first connecting rod 11 and two second connecting rods 12 fixedly connected to the left and right sides of the first connecting rod 11. The two first support seats 3 are respectively arranged on the left and right sides of the skeleton 2, and the bottom ends of the left and right sides of the plurality of portal frames 9 are respectively rotationally connected to the corresponding first support seats 3 through pin shafts. A pulley seat 13 is respectively arranged on the front and rear sides of each support seat, and a fixed pulley is arranged on the pulley seat 13. The two second support seats 4 are respectively arranged corresponding to the front sides of the two first support seats 3. The two swing arms 5 are respectively arranged on the left and right sides of the skeleton 2. The lower end of each swing arm 5 is respectively rotationally connected to the corresponding first support seat 3, and the upper end of the swing arm 5 is hinged to the second connecting rod 12 of the portal frame 9 located in the innermost side of the skeleton 2. The actuating mechanism includes two telescopic driving devices 14 respectively arranged on the left and right sides of the skeleton 2. The telescopic driving device 14 includes a telescopic rod 15 and a device body 16 for driving the telescopic rod 15 to perform telescopic operation. The device body 16 is hinged to the corresponding second support seat 4, and the end of the telescopic rod 15 is hinged to the upper end of the corresponding swing arm 5. One end of the first steel wire rope 7 sequentially bypasses the fixed pulleys on the two pulley seats 13 and is fixed to the end of the telescopic rod 15 of the actuating mechanism. The other end of the first steel wire rope 7 is fixed to the second connecting rod 12 of the portal frame 9 located in the outermost side of the skeleton 2. The second connecting rods 12 of the plurality of portal frames 9 are respectively fixedly connected together through the second steel wire rope 8. The plurality of connecting components 1 are respectively arranged on the plurality of portal frames 9 for connecting the tarpaulin 10 and the portal frame 9.

[0020] Fixed buckles are provided on the tarpaulin 10.

[0021] The connecting component 1 includes a fixed seat 17, a guide rod 18 and a telescopic spring 19. The fixed seat 17 is fixed on the first connecting rod 11 and the second connecting rod 12 of the portal frame 9. One end of the guide rod 18 is provided with a fixing hole 20 that cooperates with the fixing buckle on the tarpaulin 10. The other end of the guide rod 18 is hinged to the fixed seat 17. At least one through hole 21 is provided on the guide rod 18. One end of the telescopic spring 19 is fixed in any one of the through holes 21 of the guide rod 18, and the other end of the telescopic spring 19 is fixedly connected to the fixed seat 17. According to the size of the telescopic spring 19 in the free state, one end of the telescopic spring 19 is fixed in a suitable through hole 21 on the guide rod 18, and the fixing buckle on the tarpaulin 10 is fixed in the fixing hole 20 of the guide rod 18. When the tarpaulin 10 is unfolded, the tarpaulin 10 drives the guide rod 18 to rotate, and the guide rod 18 drives the telescopic spring 19 to stretch until the folding mechanism completely unfolds the tarpaulin 10; when the tarpaulin 10 is folded, the guide rod 18 rotates back under the action of the contraction elastic force of the telescopic spring 19 and folds the tarpaulin 10 until the folding mechanism completely folds the tarpaulin 10.

[0022] The telescopic driving device 14 uses an electric push rod, and the electric push rod is a conventional technical means in the prior art.

[0023] Bolt holes are provided on the first support seat 3, the second support seat 4 and the pulley seat 13. The first support seat 3, the second support seat 4 and the pulley seat 13 can be fixed to the vehicle body of the disinfection vehicle by bolts.

[0024] The working principle of the present invention is that when the tarpaulin 10 needs to be unfolded, the electric push rod contracts its free end, driving the upper end of the swing arm 5 to move downward. At the same time, the swing arm 5 drives the second connecting rod 12 of the portal frame 9 located in the innermost part of the framework 2 to move downward. At this time, the portal frame 9 located in the innermost part of the framework 2 is set as the leading portal frame 9. Since the second connecting rods 12 of each portal frame 9 are fixedly connected to each other through the second steel wire ropes 8 respectively, and the second connecting rod 12 of the portal frame 9 located in the outermost part of the framework 2 pulls and tightens the first steel wire rope 7. At this time, the portal frame 9 located in the outermost part of the framework 2 is set as the trailing portal frame 9. In this way, several portal frames 9 are mutually pulled through the second steel wire ropes 8. The previous portal frame 9 provides power for the next portal frame 9, and the next portal frame 9 provides anti-impact force for the previous portal frame 9, so that several portal frames 9 are unfolded in sequence, and the tarpaulin 10 is unfolded through the connecting assembly 1. After the free end of the electric push rod contracts to the set length, each portal frame 9 is unfolded in place, and at this time the tarpaulin 10 is completely unfolded. In addition, the portal frames 9 at both the head and the tail are fixed to each other under the traction of the first steel wire rope 7, so that the unfolded folding mechanism and the tarpaulin 10 can be well fixed. When the tarpaulin 10 needs to be folded, the electric push rod stretches its free end, driving the upper end of the swing arm 5 to move upward, thereby driving the leading portal frame 9 to rotate upward and backward. And under the traction of the first steel wire rope 7, the trailing portal frame 9 rotates backward. At the same time, under the traction of the second steel wire rope 8, each portal frame 9 rotates backward in sequence, and the tarpaulin 10 is folded through the connecting assembly 1. After the free end of the electric push rod stretches to the set length, each portal frame 9 is folded together, and at this time the tarpaulin 10 is folded up.

[0025] Embodiment 2

[0026] As Figures 1-3 shown, the present invention provides a tarpaulin folding frame with an anti-impact function, which includes a folding mechanism and a plurality of connecting assemblies 1. The folding mechanism includes a framework 2, two first support seats 3, two second support seats 4, two swing arms 5, an actuating mechanism, a first steel wire rope 7 and a second steel wire rope 8. The actuating mechanism includes two telescopic driving devices 14 respectively arranged on the left and right sides of the framework 2. The telescopic driving device 14 adopts a hydraulic cylinder, and other structures are exactly the same as those in Embodiment 1.

[0027] The working principle of the present invention is that when the tarpaulin 10 needs to be deployed, the hydraulic cylinder contracts the piston rod, driving the upper end of the swing arm 5 to move downward. At the same time, the swing arm 5 also drives the second connecting rod 12 of the gantry frame 9 located in the innermost part of the framework 2 to move downward. At this time, the gantry frame 9 located in the innermost part of the framework 2 is set as the gantry frame 9 at the head end. Since the second connecting rods 12 of each gantry frame 9 are fixedly connected to each other through the second steel wire rope 8 respectively, and the second connecting rod 12 of the gantry frame 9 located in the outermost part of the framework 2 pulls and tightens the first steel wire rope 7. At this time, the gantry frame 9 located in the outermost part of the framework 2 is set as the gantry frame 9 at the tail end. In this way, several gantry frames 9 are mutually pulled by the second steel wire rope 8. The previous gantry frame 9 provides power for the next gantry frame 9, and the next gantry frame 9 provides anti-impact force for the previous gantry frame 9. Furthermore, several gantry frames 9 are sequentially deployed in order, and the tarpaulin 10 is deployed through the connecting assembly 1. After the piston rod of the hydraulic cylinder contracts to the set length, each gantry frame 9 is deployed in place. At this time, the tarpaulin 10 is completely deployed. In addition, the gantry frames 9 at both the head and tail ends are fixed to each other under the traction of the first steel wire rope 7, so that the deployed folding mechanism and the tarpaulin 10 can be well fixed. When the tarpaulin 10 needs to be folded, the hydraulic cylinder stretches the piston rod, driving the upper end of the swing arm 5 to move upward, thereby driving the gantry frame 9 at the head end to rotate upward and backward. And under the traction of the first steel wire rope 7, the gantry frame 9 at the tail end rotates backward. At the same time, under the traction of the second steel wire rope 8, each gantry frame 9 rotates backward in order, and the tarpaulin 10 is folded through the connecting assembly 1. After the piston rod of the hydraulic cylinder stretches to the set length, each gantry frame 9 is folded together. At this time, the tarpaulin 10 is folded up.

[0028] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments.

Claims

1. A tarpaulin folding rack with an anti-impact function, comprising a folding mechanism and a plurality of connecting components, characterized in that: The folding mechanism includes a framework, two first support seats, two second support seats, two swing arms, an actuating mechanism, a first steel wire rope and a second steel wire rope. The framework includes a plurality of portal frames, and a tarpaulin is arranged outside the plurality of portal frames. Fixed buckles are arranged on the tarpaulin. The portal frame is composed of a first connecting rod and two second connecting rods fixedly connected to the left and right sides of the first connecting rod. The two first support seats are respectively arranged on the left and right sides of the framework, and the bottom ends of the left and right sides of the plurality of portal frames are respectively rotationally connected to the corresponding first support seats through pin shafts. Pulley seats are respectively arranged on the front and rear sides of each support seat, and fixed pulleys are arranged on the pulley seats. The two second support seats are respectively arranged corresponding to the front sides of the two first support seats. The two swing arms are respectively arranged on the left and right sides of the framework. The lower end of each swing arm is respectively rotationally connected to the corresponding first support seat, and the upper end of the swing arm is hinged to the second connecting rod of the portal frame located in the innermost part of the framework. The actuating mechanism includes two telescopic driving devices respectively arranged on the left and right sides of the framework. The telescopic driving device includes a telescopic rod and a device body for driving the telescopic rod to perform telescopic operation. The device body is hinged to the corresponding second support seat, and the end of the telescopic rod is hinged to the upper end of the corresponding swing arm. One end of the first steel wire rope sequentially bypasses the fixed pulleys on the two pulley seats and is fixed to the end of the telescopic rod of the actuating mechanism. The other end of the first steel wire rope is fixed to the second connecting rod of the portal frame located in the outermost part of the framework. The second connecting rods of the plurality of portal frames are fixedly connected to each other through the second steel wire rope. Bolt holes are arranged on the first support seats, the second support seats and the pulley seats; A plurality of connecting components are respectively arranged on the plurality of portal frames for connecting the tarpaulin and the portal frame. The connecting component includes a fixed seat, a guide rod and a telescopic spring. The fixed seat is fixed on the first connecting rod and the second connecting rod of the portal frame. One end of the guide rod is provided with a fixing hole matched with the fixed buckle on the tarpaulin. The other end of the guide rod is hinged to the fixed seat. At least one through hole is arranged on the guide rod. One end of the telescopic spring is fixed in any through hole of the guide rod, and the other end of the telescopic spring is fixedly connected to the fixed seat.

2. The tarpaulin folding rack with impact protection function according to claim 1, characterized in that: The telescopic driving device is an electric push rod, a hydraulic cylinder or a cylinder.

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