Truck tarpaulin system

Abstract

The utility model provides a truck tarpaulin system which comprises a tarpaulin frame which is provided with a first connecting portion formed on the outer contour of the tarpaulin frame, the tarpaulin frame comprises vertical piles and transverse bars connected with the vertical piles, and the transverse bars are provided with guiding pieces. The tarpaulin cover is matched with the tarpaulin frame and is provided with a cross beam, a side beam connected with the cross beam and a cover turning device arranged on the cross beam, and the cover turning device is matched with the guide piece; the tarpaulin covers the outer sides of the tarpaulin frame and the tarpaulin cover and is provided with a side edge and a bottom edge which are connected with each other, and the side edge of the tarpaulin is provided with a second connecting part; the side wall of the cloth rolling rod is connected with the bottom edge; wherein in the process that the cloth rolling rod moves along the outer contour of the tarpaulin frame, the first connecting part is matched with the second connecting part so as to seal a gap between the tarpaulin and the tarpaulin frame. Automatic sealing of the tarpaulin relative to the tarpaulin frame is achieved, a user does not need to manually take other sealing measures, user experience is facilitated, the burden of the user is reduced, and safety is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation equipment, in particular to a truck tarpaulin system. Background Art

[0002] During cargo transportation or storage, tarpaulins are often used to protect cargo from wind and dust. This can also be harmful to the environment, such as pollutants such as dust that may be present inside the cargo compartment, and to protect the cargo. Traditionally, manual tarpaulin application is time-consuming and labor-intensive, often requiring multiple personnel to complete the task. This is inefficient and difficult to meet the growing demand for freight. Furthermore, tarpaulins sometimes require workers to climb onto the cargo compartment, which not only places a heavy burden on workers but is also dangerous and increases the risk of injury.

[0003] In light of this, some existing automatic tarpaulin systems include a tarpaulin frame mounted outside a vehicle compartment and a cloth-rolling device mounted outside the tarpaulin frame. The cloth-rolling device includes a cloth-rolling rod and a motor connected to the cloth-rolling rod. The cloth-rolling rod is connected to the edge of the tarpaulin. Driven by the motor, the cloth-rolling rod rotates and reels the tarpaulin outside the rod. Simultaneously, the cloth-rolling rod moves along the contour of the tarpaulin frame as the tarpaulin is reeled in. While this type of automatic tarpaulin system achieves a certain degree of automatic retraction, the lack of a sealing structure between the tarpaulin and the tarpaulin frame results in a gap, sometimes large or small, between the tarpaulin and the tarpaulin frame when the tarpaulin is unfolded and covered. This gap prevents the tarpaulin from fully covering the vehicle compartment, hindering the protection of the cargo inside. Furthermore, when a truck is traveling at high speeds, high-speed air can enter the gap, potentially causing the tarpaulin to lift, seriously impacting the normal transportation of cargo. In addition, even if the user uses tools such as straps and nylon ropes to fasten the tarpaulin to the tarpaulin frame to avoid the above-mentioned gap, this method still falls under the category of manual operation. Since it cannot fully realize the automatic retraction and sealing of the tarpaulin, it will also increase the burden on the user and bring certain safety risks to the user.

[0004] This shows that the existing technology needs to be further improved and enhanced. Utility Model Content

[0005] In view of the above problems, an embodiment of the present invention provides a truck tarpaulin system to solve the problem that existing automatic tarpaulin equipment cannot achieve automatic sealing between the tarpaulin and the tarpaulin frame.

[0006] The present invention provides a truck tarpaulin system, comprising:

[0007] The tarpaulin frame has a first connecting portion formed on its outer contour, and the tarpaulin frame includes a stake and a crossbar connected to the stake, and the crossbar is provided with a guide member;

[0008] The tarpaulin cover matched with the tarpaulin frame has a crossbeam and side beams connected to the crossbeam, and a flip device arranged on the crossbeam. The flip device cooperates with the guide member so that the tarpaulin frame can be driven by the flip device to realize the flipping of the tarpaulin cover relative to the tarpaulin frame.

[0009] A tarpaulin covering the outer side of the tarpaulin frame and the tarpaulin cover has a side edge and a bottom edge connected thereto, and a second connecting portion is provided on the side edge;

[0010] The cloth rolling rod has a side wall connected to the bottom edge, and as the cloth rolling rod rotates, the tarpaulin can be extended and retracted outside the cloth rolling rod along the circumference of the cloth rolling rod, so that the cloth rolling rod moves along the outer contour of the tarpaulin frame and the tarpaulin cover;

[0011] When the cloth rolling rod moves along the outer contour of the tarpaulin frame, the first connecting portion cooperates with the second connecting portion to seal the gap between the tarpaulin and the tarpaulin frame.

[0012] In some embodiments, the first connecting portion is a female Velcro patch, and the second connecting portion is a male Velcro patch, and the male Velcro patches are bonded to each other.

[0013] In some embodiments, the first connecting portion is a first chain belt having primary chain teeth, and the second connecting portion is a second chain belt having secondary chain teeth;

[0014] Truck tarpaulin system also includes

[0015] The pull head is adapted to the main chain teeth and the auxiliary chain teeth respectively;

[0016] A driving member connected to the end of the cloth winding rod;

[0017] The cloth closing device is connected to the pull head and the driving member respectively, and in response to the driving action of the driving member, the pull head can move along the outer contour of the tarpaulin frame under the drive of the cloth closing device to achieve staggered engagement or separation between the main chain teeth and the auxiliary chain teeth.

[0018] In some embodiments, the cloth sealing device comprises:

[0019] A fixed plate connected to the slider;

[0020] The connecting piece has two ends connected to the fixing plate and the driving piece respectively.

[0021] In some embodiments, a pull ring is provided on the surface of the fixing plate;

[0022] The connecting member has a horizontal section and a vertical section connected to each other. The head end of the horizontal section is plugged into the pull ring, the tail end of the horizontal section is fixedly connected to the first end of the vertical section, and the second end of the vertical section is rotationally connected to the driving member.

[0023] In some embodiments, the connecting member includes: a first connecting rod, a second connecting rod and a third connecting rod, the two ends of the second connecting rod are respectively rotatably connected to one end of the first connecting rod and one end of the third connecting rod, and the other end of the first connecting rod and the other end of the third connecting rod are respectively connected to the driving member and the fixed plate.

[0024] In some embodiments, a shaft sleeve is provided on the top of the driving member, and a rotating shaft is provided at the end of the first connecting rod. The rotating shaft cooperates with the shaft sleeve to achieve a rotational connection between the first connecting rod and the driving member.

[0025] In some embodiments, the tarpaulin includes a main cloth and a side cloth, the side cloth is fixed to the surface of the stake, the first connecting portion is formed at the side edge of the side cloth, and the second connecting portion is formed at the side edge of the main cloth.

[0026] In some embodiments, the truck tarpaulin system further comprises:

[0027] A cloth tightening assembly provided on the tarpaulin frame, connected to the side cloth, and having a rotation axis parallel to the height direction and / or width direction of the tarpaulin frame;

[0028] Wherein, as the cloth tightening assembly rotates along the rotation axis, the tarpaulin can be tightened along the extension direction of the bottom edge.

[0029] In some embodiments, the truck tarpaulin system further includes a telescopic rod assembly, one end of the telescopic rod assembly is connected to the cloth rolling rod, and the other end is connected to the flip cover device.

[0030] Due to the adoption of the above technical solution, the technical effects achieved by the present invention are as follows:

[0031] The utility model provides a truck tarpaulin system, comprising a tarpaulin frame, a tarpaulin arranged outside the tarpaulin frame, a roll-up rod, and a drive member. The tarpaulin frame has a first connecting portion, and the side edge of the tarpaulin has a second connecting portion. Driven by the drive member, the roll-up rod engages the first connecting portion with the second connecting portion during the process of extending and retracting the tarpaulin, thereby connecting the tarpaulin to the tarpaulin frame and sealing the gap therebetween. This truck tarpaulin system, on the one hand, enables the tarpaulin to more tightly wrap around the vehicle compartment through the engagement between the first connecting portion and the second connecting portion, thereby enhancing the tarpaulin's protective effect on cargo within the compartment. On the other hand, even when the truck is traveling at high speeds, the tarpaulin is prevented from being blown away by strong winds, thereby improving the stability and reliability of the system and facilitating the smooth transportation of cargo. Furthermore, the first connecting portion and the second connecting portion engage and disengage with the movement of the roll-up rod, thereby automatically sealing the tarpaulin relative to the tarpaulin frame, eliminating the need for the user to manually take other sealing measures. This improves user experience, reduces user burden, and enhances safety.

[0032] The above description is only an overview of the technical solution of the embodiment of the utility model. In order to more clearly understand the technical means of the embodiment of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the utility model more obvious and easy to understand, the specific implementation method of the utility model is specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0034] Figure 1 This is a structural diagram of a truck tarpaulin system provided by the utility model;

[0035] Figure 2 This is a structural diagram of another truck tarpaulin system provided by the present invention;

[0036] Figure 3 yes Figure 2 A magnified schematic diagram of part A;

[0037] Figure 4 This is a structural diagram of a tarpaulin rack provided by the utility model;

[0038] Figure 5 This is a structural diagram of another truck tarpaulin system provided by the present invention;

[0039] Figure 6 This is a side view of a truck tarpaulin system provided by the utility model;

[0040] Figure 7 The utility model provides Figure 6 An enlarged schematic diagram of part B;

[0041] Figure 8 This is a structural diagram of a connector provided by the utility model;

[0042] Figure 9 This is a structural diagram of another connecting piece provided by the utility model;

[0043] Figure 10 This is a structural schematic diagram of a carriage provided by the utility model;

[0044] Figure 11 This is a structural diagram of a cloth tightening assembly provided by the utility model;

[0045] Figure 12 This is a structural diagram of another cloth tightening assembly provided by the present invention;

[0046] Figure 13 This is a structural diagram of another truck tarpaulin system provided by the present invention;

[0047] Figure 14 This is a structural diagram of another truck tarpaulin system provided by the present invention;

[0048] Figure 15 The utility model provides Figure 14 Enlarged schematic diagram of part C.

[0049] In the picture:

[0050] 100 tarpaulin frame, 110 first connecting portion, 120 stakes, 130 horizontal bar, 131 guide member, 140 side bar, 150 tarpaulin tightening assembly, 151 tarpaulin tightening seat, 152 tarpaulin tightening rod, 153 fixing frame, 154 telescopic cylinder, 155 buffer member, 156 elastic member, 157 pull rod, 158 connecting rope, 160 tarpaulin tightening plate, 161 fixing portion;

[0051] 200 tarpaulin, 210 second connecting part, 220 main cloth, 230 side cloth;

[0052] 300 cloth rolling rod, 310 pull head, 320 driving member, 330 cloth sealing device, 331 fixing plate, 332 connecting member, 333 pull ring, 334 horizontal section, 335 vertical section, 336 first connecting rod, 337 second connecting rod, 338 third connecting rod;

[0053] 400 tarpaulin cover, 410 cross beam, 420 side beam, 430 flip cover device, 440 telescopic rod assembly, 450 support net. DETAILED DESCRIPTION

[0054] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the accompanying drawings show exemplary embodiments of the present invention, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0055] Reference Figure 1-Figure 3 As shown, the embodiment of the present invention provides a truck tarpaulin system, including a tarpaulin frame 100, a tarpaulin 200, a rolling rod 300 and a tarpaulin cover 400, wherein the tarpaulin frame 100 has a first connecting portion 110 formed on its outer contour, and the tarpaulin frame 100 includes a stake 120 and a crossbar 130 connected to the stake 120, and the crossbar 130 is provided with a guide 131; the tarpaulin cover 400 matches the tarpaulin frame 100, and the tarpaulin cover 400 has a crossbeam 410 and a side beam 420 connected to the crossbeam 410, and a flip device 430 provided on the crossbeam 410, and the flip device 430 matches the guide 131. The tarpaulin frame 100 is configured to be closed, so that the tarpaulin cover 400 can be flipped relative to the tarpaulin frame 100 under the drive of the flip-up device 430. The tarpaulin 200 is disposed outside the tarpaulin frame 100 and the tarpaulin cover 400. The tarpaulin 200 has connected side edges (not labeled) and a bottom edge (not labeled) with a second connecting portion 210 disposed on the side edges. The side walls of the rolling rod 300 are connected to the bottom edge of the tarpaulin frame 100. As the rolling rod 300 rotates, the tarpaulin 200 can be extended and retracted outside the rolling rod 300 along the circumference of the rolling rod 300, allowing the rolling rod 300 to move along the outer contour of the tarpaulin frame 100. Furthermore, as the rolling rod 300 moves along the outer contours of the tarpaulin frame 100 and the tarpaulin cover 400, the first connecting portion 110 cooperates with the second connecting portion 210 to seal the gap between the tarpaulin 200 and the tarpaulin frame 100.

[0056] It should be noted that the truck tarpaulin system provided in this application can be applied to different types of truck compartments, such as tarpaulin compartments, flatbed compartments, curtain-side compartments, dump truck compartments, and other types of compartments that require tarpaulin covering. Furthermore, since the sizes, specifications, and structures of different types of truck compartments vary to varying degrees, when installing the truck tarpaulin system on different types of truck compartments, the user can appropriately adjust the sizes and specifications of the tarpaulin frame 100 and other structures in the truck tarpaulin system based on the parameters of the different types of truck compartments. This application does not limit the applicable vehicle models and application scenarios of the truck tarpaulin system, nor does it limit the specific sizes and specifications of the truck tarpaulin system.

[0057] It should also be noted that the tarpaulin rack 100 in the present application can be installed on the outside of the vehicle compartment alone, or it can be used in conjunction with the tarpaulin cover 400 described below and installed together on the outside of the vehicle compartment. When the tarpaulin rack 100 is adapted to the vehicle compartment alone, for example, the tarpaulin rack 100 may include a stake 120, a crossbar 130, and a side bar 140. In this case, the first connecting portion 110 may be formed on the surface of the stake 120 and the crossbar 130, that is, the first connecting portion 110 is arranged along the height and width directions of the vehicle compartment; the first connecting portion 110 may also be formed only on the surface of the stake 120, that is, the first connecting portion 110 is arranged parallel to the height direction of the vehicle compartment.

[0058] When the tarpaulin frame 100 and the tarpaulin cover 400 are adapted to the vehicle compartment, for example, referring to Figure 4 and Figure 5 As shown, the tarpaulin frame 100 may include upright posts 120, horizontal bars 130, and side bars 140, wherein the horizontal bars 130 and side bars 140 are connected and enclosed to form a frame structure, and the upright posts 120 are perpendicular to the formed frame and fixedly connected to the bottom of the horizontal bars 130 and / or the side bars 140. The tarpaulin cover 400 may include a crossbeam 410 parallel to the horizontal bar 130 and side bars 420 connected to the crossbeam 410, and the crossbeam 410 and side bars 420 may also be enclosed to form a frame structure. Since the tarpaulin cover 400 is located above the tarpaulin frame 100 and can be turned or moved relative to the tarpaulin frame 100, the first connecting portion 110 may be formed on the surface of the upright posts 120 and the crossbeam 410, or only on the surface of the upright posts 120. It is understandable that there are various locations where the first connecting portion 110 can be formed in the present application, and its specific location depends on the user's design requirements and the specific structure of the truck tarpaulin system.

[0059] Furthermore, in this application, the "side edge" of the tarpaulin 200 refers to the edge of the tarpaulin 200 along the height or width of the vehicle compartment, and the "bottom edge" refers to the edge of the tarpaulin 200 along the length of the vehicle compartment. Accordingly, when the first connecting portion 110 is formed at different locations within the tarpaulin frame 100, the position of the second connecting portion 210 will also be adjusted appropriately. For example, when the first connecting portion 110 is formed on the surface of the stakes 120 and the crossbar 130, the second connecting portion 210 can be formed correspondingly at the side edges of the tarpaulin 200 in both the height and width directions; when the first connecting portion 110 is formed only on the surface of the stakes 120, the second connecting portion 210 is formed correspondingly at the side edge of the tarpaulin 200 in the height direction.

[0060] In addition, the present application does not limit the connection method between the cloth rolling rod 300 and the bottom edge of the tarpaulin 200. For example, the tarpaulin 200 and the cloth rolling rod 300 can be connected by sleeve connection, bonding, snap connection, etc. The present application also does not limit the specific structure of the cloth rolling rod 300. For example, the cross-section of the cloth rolling rod 300 can be circular, square, or any polygon such as a pentagon or hexagon. Preferably, a heating element (such as a heating wire, a heating rod, a heating block, etc.) can also be provided inside the cloth rolling rod 300. The provision of the heating element enables the cloth rolling rod 300 to transfer heat to the tarpaulin during the process of rolling up the tarpaulin, thereby thawing the ice formed on the surface of the tarpaulin in cold weather, thereby ensuring the stable operation of the equipment, and also improving the service life of the tarpaulin itself.

[0061] Furthermore, the roll-up rod 300 may be internally provided with a magnetic element, and the tarpaulin cover 100 and / or the tarpaulin frame 200 may also be provided with a magnetic element, or portions of the tarpaulin cover 400 and / or the tarpaulin frame 100 may be made of a magnetic material. Through the coordination between the magnetic element and the magnetic element, or between the magnetic element and the magnetic material, the roll-up rod 300 can maintain stability as it moves along the outer contour of the tarpaulin cover 400 and / or the tarpaulin frame 100. This allows the roll-up rod 300 to adhere to the surface of the tarpaulin cover 400 and / or the tarpaulin frame 100 to a certain extent, meeting user requirements for varying degrees of tarpaulin opening and closing, and enabling the device to adapt to a variety of scenarios.

[0062] The truck tarpaulin system provided in the present application, on the one hand, can make the tarpaulin 200 more tightly cover the vehicle compartment through the cooperation between the first connecting part 110 and the second connecting part 210, thereby improving the protective effect of the tarpaulin 200 on the cargo inside the vehicle compartment; on the other hand, even if the truck is traveling at high speed, the tarpaulin 200 will not be blown away by strong winds, thereby improving the stability and reliability of the equipment and facilitating the smooth transportation of cargo; on the other hand, the first connecting part 110 and the second connecting part 210 can cooperate or separate with the movement of the cloth rolling rod 300, thereby realizing automatic sealing of the tarpaulin 200 relative to the tarpaulin frame 100, without the user having to manually take other sealing measures, which is beneficial to the user experience, reduces the burden on the user, and is safer.

[0063] Regarding the specific types of the first connection portion 110 and the second connection portion 210, there may be various different implementations:

[0064] In one embodiment, the first connecting portion 110 is a female Velcro patch, and the second connecting portion 210 is a male Velcro patch, and the male Velcro patches are bonded to each other.

[0065] In this embodiment, the arrangement of the Velcro female tape and the Velcro male tape makes the coordination between the first connecting portion 110 and the second connecting portion 210 simpler and faster, and the Velcro female tape and the Velcro male tape can be flexibly arranged on the tarpaulin frame 100 and the tarpaulin 200, making processing and assembly easier, thereby helping to reduce product costs.

[0066] In another embodiment, the first connecting part 110 can be a first chain belt with a track, and the second connecting part 210 can be a second chain belt with an insertion strip. Through the cooperation between the insertion strip and the track, the connection between the first connecting part 110 and the second connecting part 210 can be achieved.

[0067] Compared with the above-mentioned bonding method between the Velcro male patch and the Velcro female patch, the cooperation between the insert and the track enables the cooperation between the first chain belt and the second chain belt to form a toothless zipper structure with better air tightness, thereby improving the sealing performance of the equipment.

[0068] In another embodiment, referring to Figure 3 As shown, the first connecting portion 110 is a first chain belt with primary sprockets, and the second connecting portion 210 is a second chain belt with secondary sprockets. Furthermore, the truck tarpaulin system also includes a pull head 310, a drive member 320, and a cloth-closing device 330. The pull head 310 is adapted to the primary sprockets and the secondary sprockets, respectively. The cloth-closing device 330 is connected to the pull head 310 and the drive member 320, respectively. In response to the driving action of the drive member 320, the pull head 310 can be driven by the cloth-closing device 330 to move along the outer contour of the tarpaulin frame 100 to achieve staggered engagement or disengagement between the primary and secondary sprockets.

[0069] It should be noted that in this embodiment, the driving member 320 can be a driving motor, a hydraulic driving member 320, a pneumatic driving member 320, etc., or can be a handle, a crank, etc., and this application does not limit the specific type of the driving member 320. Specifically, when the driving member 320 is an automatic driving structure such as a driving motor, a hydraulic pump, or a pneumatic pump, since the driving motor, hydraulic pump, or pneumatic pump is usually fixedly connected to the cloth rolling rod 300, the cloth sealing device 330 can be connected to the pull head 310 and the driving member 320 by means of the support position provided by the driving member 320; when the driving member 320 is a manual driving structure such as a handle or a crank, since the handle, crank, or other structures are usually detachably connected to the cloth rolling rod 300, the cloth sealing device 330 can be connected to the pull head 310 and the cloth rolling rod 300 respectively. Optionally, the cloth closing device 330 can be connected to the end of the cloth rolling rod 300 through a ring (not shown in the figure). The setting of the ring can prevent the cloth closing device 330 from rotating with the rotation of the cloth rolling rod 300, thereby ensuring the stability of the cloth closing device 330 during the movement process along the outer contour of the tarpaulin frame 100.

[0070] In addition, there can be one or two cloth rolling rods 300, and the present application does not limit the specific number of cloth rolling rods 300. When there are two cloth rolling rods 300 and the driving member 320 adopts an automatic driving structure (such as a driving motor), the two cloth rolling rods 300 can be driven by two driving motors; or, the two cloth rolling rods 300 can also be driven by one driving motor. In this case, the ends of the two cloth rolling rods 300 can be provided with a three-way connector 332, one end of the three-way connector 332 is connected to the end of the cloth rolling rod 300, the other end can be connected to the driving member 320 through a transmission shaft, and the other end can be connected to a manual driving structure (such as a handle, a crank, etc.). Among them, through the provision of the three-way connector 332, when the automatic driving structure fails, the cloth rolling rod 300 can be driven by the manual driving structure, thereby ensuring the smooth movement of the cloth rolling rod 300, thereby improving the stability of the truck tarpaulin system.

[0071] In this embodiment, the coordination between the primary sprockets in the first chain and the secondary sprockets in the second chain makes the connection between the first connecting portion 110 and the second connecting portion 210 more stable and reliable. Furthermore, when the drive member 320 drives the cloth-rolling rod 300, it moves along with the movement of the cloth-rolling rod 300 along the contour of the tarpaulin frame 100. In other words, the drive member 320 can also move along the contour of the tarpaulin frame 100. Therefore, by connecting the cloth-closing device 330 to the drive member 320, the cloth-closing device 330 can move with the movement of the drive member 320, thereby driving the slider 310 to close or separate the first and second chain straps.

[0072] In some embodiments, reference Figure 6 and Figure 7 As shown, the cloth sealing device 330 may include a fixing plate 331 and a connecting member 332. The fixing plate 331 is connected to the slider 310, and the ends of the connecting member 332 are respectively connected to the fixing plate 331 and the driving member 320. Preferably, there are two fixing plates 331: one fixing plate 331 is located outside the first and second links to connect with the top of the slider 310, and the other fixing plate 331 is located inside the first and second links to connect with the bottom of the slider 310. The provision of the fixing plates 331 not only facilitates a reliable and stable connection between the cloth sealing device 330 and the slider 310, but also largely prevents interference between the slider 310 and the first and second links, driven by the connecting member 332, during the process of the slider 310 closing or closing the first and second links, thereby improving the opening and closing effect of the slider 310.

[0073] It should be noted that the connecting member 332 mainly serves to connect the fixing plate 331 and the driving member 320. Therefore, any structure of the connecting member 332 that can achieve this connection function should be within the scope of protection of this application. However, for ease of understanding, the relevant structures of the connecting member 332 will be described below using several different embodiments:

[0074] Implementation Method 1

[0075] Reference Figure 8 As shown, a pull ring 333 is provided on the surface of the fixed plate 331, and the connecting member 332 has a horizontal section 334 and a vertical section 335 connected to each other. The head end of the horizontal section 334 is plugged into the pull ring 333, the tail end of the horizontal section 334 is fixedly connected to the first end of the vertical section 335, and the second end of the vertical section 335 is rotatably connected to the driving member 320.

[0076] Preferably, in this embodiment, the end of the horizontal section 334 may also be provided with an anti-slip portion (not shown). The anti-slip portion may be a pin, a protrusion, or the like. The provision of the anti-slip portion can enhance the stability of the fit between the horizontal section 334 and the pull ring 333, preventing the connector 332 from separating from the pull ring 333 during movement of the cloth sealing device 330. Furthermore, in addition to being rotationally connected to the drive member 320, the vertical section 335 may also be directly fixedly connected to the drive member 320. The connection between the horizontal section 334 and the vertical section 335 may be either a fixed connection or a rotational connection. This application does not limit the specific connection method between the aforementioned components. In a specific example, an adjustment nut is provided between the horizontal section 334 and the vertical section 335, respectively mating with each other. By turning the adjustment nut, the angle between the horizontal section 334 and the vertical section 335 can be adjusted.

[0077] The pull ring 333 allows for a quick-release connection between the connector 332 and the fixed plate 331, making it easier for the user to operate. Furthermore, the rotational connection between the vertical section 335 of the connector 332 and the driver 320 allows the cloth-sealing device 330 to better adapt to the movement of the slider 310 along the first or second chain. Compared to a fixed arrangement between the connector 332 and the driver 320, this arrangement significantly reduces the potential for adverse stresses between the connector 332, the fixed plate 331, and the slider 310, thereby maintaining the structural stability and reliability of the cloth-sealing device 330 and the slider 310.

[0078] Implementation Method 2

[0079] Reference Figure 9As shown, the connecting member 332 includes a first connecting rod 336, a second connecting rod 337, and a third connecting rod 338. The two ends of the second connecting rod 337 are rotatably connected to one end of the first connecting rod 336 and one end of the third connecting rod 338, respectively. The other ends of the first connecting rod 336 and the other ends of the third connecting rod 338 are respectively connected to the driving member 320 and the fixing plate 331. Furthermore, a shaft sleeve (not labeled in the figure) is provided at the top of the driving member 320, and a rotating shaft (not labeled in the figure) is provided at the end of the first connecting rod 336. The rotating shaft cooperates with the shaft sleeve to achieve a rotational connection between the first connecting rod 336 and the driving member 320. Optionally, an adjusting nut (not shown) connected to each of the first connecting rod 336 and the driving member 320 can also be provided between the first connecting rod 336 and the driving member 320. By screwing the adjusting nut, the angle between the first connecting rod 336 and the driving member 320 can be adjusted.

[0080] In this second embodiment, the connection between the connecting member 332 and the fixed plate 331 is achieved through the provision of a multi-link mechanism, which provides greater connection flexibility. Furthermore, in this second embodiment, a pull ring 333 may be provided on the surface of the fixed plate 331. The third connecting rod 338 is connected to the fixed plate 331 via the pull ring 333. The pull ring 333 is capable of rotating relative to the fixed plate 331, thereby enabling both ends of the connecting member 332 to rotate relative to the fixed plate 331 and the driving member 320. This further enhances the connection flexibility among the fixed plate 331, the connecting member 332, and the driving member 320, and significantly reduces any adverse stress that may be generated among the three.

[0081] It is understandable that regarding the specific rotational connection structure or type between the connecting member 332, the fixing plate 331 and the driving member 320, those skilled in the art can adopt a variety of different implementation forms, such as ball joint connection, bearing connection, etc., which will not be repeated here.

[0082] In some embodiments, continue to refer to Figure 1 As shown, the tarpaulin 200 includes a main fabric 220 and a side fabric 230. The first connecting portion 110 is formed at the side edge of the side fabric 230, and the second connecting portion 210 is formed at the side edge of the main fabric 220. The side fabric 230 is fixed to the surface of the stake 120. The main fabric 220 is used to cover the main body of the vehicle, and the side fabric 230 is used to cover the gap between the main fabric 220 and the tarpaulin frame 100 on the one hand, and to facilitate the fixing of the first connecting portion 110 to the tarpaulin frame 100 or the stake 120 on the other hand.

[0083] It can be understood that the tarpaulin 200 in the present application can also be compounded into a multi-layer structure. For example, it can be a tarpaulin with insulation and heating functions composed of a tarpaulin body, a heating layer and an insulation layer, wherein the heating layer can be a heating wire, a heating rod, etc.; the insulation layer can be insulation cotton, insulation foam, etc. The present application does not limit the specific structure of the tarpaulin 200.

[0084] It should also be noted that the tarpaulin 200 in this application can be a split or integral structure. When the tarpaulin 200 is a split structure, it can include a main tarpaulin for covering the top and sides of the tarpaulin frame 100, a front tarpaulin for covering the front of the tarpaulin frame 100, and a rear tarpaulin for covering the rear of the tarpaulin frame 100. When the tarpaulin is an integral structure, it can cover the top, sides, front, and rear of the tarpaulin frame 100 separately. This application does not limit the specific structure of the tarpaulin 200.

[0085] Furthermore, to enhance the fastening effect of the tarpaulin 200 on the tarpaulin frame 100 and prevent the tarpaulin 200 from being blown away by strong winds during the driving of the truck, preferably, a tightening member such as a strap, a drawstring, or a protective net may be provided on the outside of the tarpaulin 200. By tightening the tightening member, the fastening effect of the tarpaulin 200 can be further improved.

[0086] In other embodiments, the tarpaulin frame 100 may further include auxiliary piles (not shown) arranged side by side with the stakes 120. When the stakes 120 utilize a telescopic column structure, as the telescopic columns extend and retract, the trim fabric 230 arranged on the surface of the stakes 120 will also move accordingly. However, the trim fabric 230 itself cannot undergo large-scale deformation. Therefore, the telescopic movement of the stakes 120 may damage the trim fabric 230, thereby affecting the normal operation of the equipment. Based on this, the present application arranges the trim fabric 230 on the surface of the auxiliary piles and configures the auxiliary piles as a telescopic structure to, to a certain extent, prevent damage to the tarpaulin 200 during the extension and retraction of the stakes 120.

[0087] Further, refer to Figure 10-12 As shown, the truck tarpaulin system may further include a cloth tightening assembly 150 disposed on the tarpaulin frame 100, wherein the cloth tightening assembly 150 is connected to the edge cloth 230 and has a rotation axis parallel to the height direction and / or width direction of the tarpaulin frame 100; wherein, as the cloth tightening assembly 150 rotates along the rotation axis, the tarpaulin 200 can be tightened along the extension direction of the bottom edge.

[0088] Specifically, in some embodiments, referring to Figure 11 and Figure 12As shown, the cloth tightening assembly 150 may include a cloth tightening seat 151 provided on the pile 120 and a cloth tightening rod 152 rotatably connected to the cloth tightening seat 151, and the cloth tightening rod 152 is connected to the driving member 320; the cloth tightening seat 151 may include a fixing frame 153 provided on the pile 120, a telescopic cylinder 154 hinged to the end of the fixing frame 153 and a buffer member 155 respectively abutting the fixing frame 153 and the telescopic cylinder 154, the end of the telescopic cylinder 154 is rotatably connected to the cloth tightening rod 152, and an elastic member 156 and a pull rod 157 are provided in the telescopic cylinder 154, and the pull rod 157 is connected to the cloth tightening rod 152 through a connecting rope 158.

[0089] As the fabric tensioning rod 152 rotates, the pull rod 157, under the action of the connecting rope 158, approaches the fabric tensioning rod 152, compressing the telescopic cylinder 154 to the fabric tensioning position. Under the elastic action of the buffer 155 and the elastic member 156, the pull rod 157 can move away from the fabric tensioning rod 152, returning the telescopic cylinder 154 to its normal position. Optionally, the telescopic cylinder 154 can be provided with a strip groove, with the pull rod 157 mating with the strip groove and able to slide along the strip groove. Furthermore, the elastic member 156 can abut against the inner wall of the pull rod 157 and the telescopic cylinder 154, respectively.

[0090] Among them, the elastic member 156 and the buffer member 155 can both be compression springs, spring pieces, etc., which are not limited in this application. In addition, the connection between the cloth tightening rod 152 and the side cloth 230 can be a fixed connection or a detachable connection, which is not limited in this application. When the cloth tightening rod 152 and the side cloth 230 are detachably connected, preferably, the surface of the cloth tightening rod 152 can be provided with an adhesive portion (not marked in the figure), and the side cloth 230 is correspondingly provided with an adhesive portion (not shown in the figure), and the adhesive portion and the adhesive portion cooperate with each other. Optionally, the adhesive portion and the adhesive portion can both be Velcro.

[0091] In order to clearly understand the principle of the cloth tightening assembly 150, its movement process is described below:

[0092] When the side cloth 230 is connected to the cloth tightening rod 152, the driving member 320 drives the cloth tightening rod 152 to rotate. The cloth tightening rod 152 can pull the pull rod 157 via the connecting rope 158, causing it to slide along the strip groove. The elastic member 156 is squeezed by the pull rod 157 and the inner wall of the telescopic cylinder 154, causing it to contract. Simultaneously, the telescopic cylinder 154 can be compressed along its extension direction and rotated to a certain extent relative to the fixed frame 153, bringing it closer to the fixed frame 153. When the telescopic cylinder 154 cannot be compressed or rotated relative to the fixed frame 153, it indicates that the telescopic cylinder 154 has been fully compressed to the cloth tightening position, completing the tightening of the side cloth 230, or the side edge of the tarpaulin 200.

[0093] It is understood that since the side cloth 230 can include portions along the height direction of the tarpaulin frame 100 or along the width direction of the tarpaulin frame 100, the tightening assembly 150 connected to the side cloth 230 can be arranged along either the height direction or the width direction of the tarpaulin frame 100. Thus, when the first connecting portion 110 and the second connecting portion 210 cooperate and the main cloth 220 and the side cloth 230 are integrally connected, the tarpaulin 200 is tightened as a whole. The provision of the tightening assembly 150 not only improves the tightening and sealing effect of the tarpaulin 200, but also enables the tarpaulin 200 to fully cover the vehicle compartment, thereby facilitating the tarpaulin 200's protection of cargo within the vehicle compartment.

[0094] Furthermore, a drive member 320, such as a drive motor, an air pump, a hydraulic pump, a handle, or a crank, may be provided at the end of the fabric tightening assembly 150. Driven by the drive member 320, the fabric rolling rod 300 rotates to tighten the tarpaulin 200. The cross-section of the fabric tightening assembly 150 may be square or circular, and the present application does not limit the specific shape of the fabric tightening assembly 150.

[0095] In some embodiments, reference Figure 5 and Figure 13 As shown, the truck tarpaulin system also includes a tarpaulin cover 400 that matches the tarpaulin frame 100. The tarpaulin cover 400 has a crossbeam 410 and side beams 420 connected to the crossbeam 410. The side cloth 230 can also be fixed to the surface of the crossbeam 410. When the truck tarpaulin system includes the tarpaulin cover 400, the tarpaulin frame 100 and the tarpaulin cover 400 are adapted and installed together on the outside of the vehicle compartment. At this time, by fixing the side cloth 230 to the surface of the crossbeam 410, a sealed connection is achieved between the main cloth 220 and the side cloth 230 located above the tarpaulin cover 400, thereby sealing the gap between the tarpaulin 200 and the tarpaulin cover 400.

[0096] Reference Figure 14 and Figure 15 As shown, when tightening the tarpaulin 200, in addition to using the structure of the tightening assembly 150 described above, it can also be achieved by providing a tightening plate 160 on the tarpaulin cover 400 and / or the tarpaulin frame 100. Specifically, the tightening plate 160 has a fixing portion 161 connected to the edge cloth 230, and the tightening plate 160 can move relative to the tarpaulin cover 400 and / or the tarpaulin frame 100 to tighten or release the tarpaulin 200.

[0097] The cloth tightening plate 160 can be arranged only at the front end or rear end of the tarpaulin frame 100, or can be arranged at both the front end and rear end of the tarpaulin frame 100. The front end of the tarpaulin frame 100 corresponds to the front end of the carriage, and the rear end of the tarpaulin frame 100 corresponds to the rear end of the carriage.

[0098] Furthermore, one end of the tensioning plate 160 is pivotally connected to the tarpaulin cover 400 and / or the tarpaulin frame 100, while the other end is provided with a fixing portion 161. The tensioning plate 160 can be flipped relative to the tarpaulin cover 400 and / or the tarpaulin frame 100 so that the surface of the fixing portion 161 is parallel or perpendicular to the surface of the tarpaulin cover 400 and / or the tarpaulin frame 100. The tensioning plate 160 is connected to the edge fabric 230, increasing the connection area between it and the tarpaulin 200 and improving the stability of the tensioning plate 160 during the tensioning process.

[0099] In addition, the tarpaulin rack 100 may further include an elastic member (not shown in the figure) arranged on the crossbeam 410, and the elastic member is used to support the cloth tightening plate so that the surface of the fixing portion 161 remains in a position parallel to the top surface of the tarpaulin rack 100 (especially the top surface of the cross bar 130).

[0100] Because the fabric tensioning plate 160, mounted on the crossbeam 410, can flip between a horizontal and vertical position, it is prone to tilting downward under its own weight, making it difficult to maintain a position parallel to the top surface of the tarpaulin frame 100. Therefore, an elastic member is provided to support the fabric tensioning plate 160 in a horizontal position. When the fabric tensioning plate 160 tilts downward, the elastic member is compressed. When the fabric tensioning plate 160 is released, the elastic member releases its elastic force and, under the action of the elastic force, pushes the fabric tensioning plate 160 upward, maintaining the surface of the fixing portion 161 in a horizontal position. The elastic member can be a torsion spring, a leaf spring, or the like.

[0101] In some embodiments, the tarpaulin cover 400 further includes a flipping device 430 disposed on the crossbar 410. The crossbar 130 is provided with a guide 131. The flipping device 430 cooperates with the guide 131 to enable the tarpaulin cover 400 to move along the crossbar 130 under the drive of the flipping device 430, thereby achieving flipping of the tarpaulin cover 400 relative to the tarpaulin frame 100. The guide 131 may be a chain, and the flipping device 430 may include a sprocket (not shown). The sprocket and chain cooperate to achieve cooperation between the flipping device 430 and the guide 131. Alternatively, the guide 131 may be a slide rail, and the flipping device 430 may include a slider. The slide rail and the slider cooperate to achieve cooperation between the flipping device 430 and the guide 131. The specific structures of the guide 131 and the flipping device 430 are not limited in this application.

[0102] By setting the flip cover device 430, relative movement between the tarpaulin cover 400 and the tarpaulin frame 100 can be achieved, so that the user can load and unload goods from the top of the tarpaulin frame 100 into the vehicle compartment, which to a certain extent improves the applicability of the truck tarpaulin system.

[0103] Further, continue to refer to Figure 5 and Figure 13 As shown, the truck tarpaulin system may further include a telescopic rod assembly 440, one end of which may be connected to the drive member 320 or directly to the cloth rolling rod 300, and the other end of which may be connected to the flip cover device 430. The telescopic rod assembly 440 includes a plurality of telescopic joints (not labeled) that are sequentially connected, and the plurality of telescopic joints can extend or contract as the cloth rolling rod 300 moves along the outer contour of the tarpaulin frame 100.

[0104] Through the setting of the telescopic rod assembly 440, on the one hand, the movement path of the cloth rolling rod 300 can be guided to prevent the movement path of the cloth rolling rod 300 from being offset, thereby ensuring the reliability and stability of the tarpaulin 200 during the deployment and retraction process; on the other hand, when the telescopic rod assembly 440 is connected to the driving member 320, the position of the driving member 320 can also be restricted to avoid the driving member 320 from rotating as the cloth rolling rod 300 rotates as much as possible, thereby further improving the safety of the truck tarpaulin system.

[0105] It is understandable that the connection between the telescopic rod assembly 440 and the driving member 320, the cloth rolling rod 300, and the flip cover device 430 can be either a fixed connection or a rotational connection, and this application does not limit this.

[0106] Furthermore, the tarpaulin cover 400 may further include a support net 450 disposed in the space enclosed by the cross beam 410 and the side beam 420. The provision of the support net 450 not only provides good support for the tarpaulin cover 400 but also facilitates air circulation between the interior of the vehicle and the outside environment.

[0107] It should also be noted that the truck tarpaulin system provided by this application is mainly used in the field of truck transportation, especially often used in truck compartments. However, this does not completely mean that the technical approach provided by this application cannot be applied in other fields. For example, in scenes such as outdoor awnings and open-air platforms that require tarpaulin covering for shielding, sometimes it is necessary not only to be able to automatically unfold and retract the tarpaulin, but also to ensure the sealing effect of the tarpaulin. In this case, the truck tarpaulin system provided by this application can completely divert the relevant structure to the relevant scene according to the needs of the user.

[0108] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. Similarly, in order to streamline the present invention and facilitate understanding of one or more of the various aspects of the present invention, in the above description of exemplary embodiments of the present invention, various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. The claims that follow the detailed description are hereby expressly incorporated into the detailed description, with each claim itself serving as a separate embodiment of the present invention.

[0109] It should be noted that the above embodiments illustrate rather than limit the present invention, and that a person skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between brackets should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments should not be understood as limiting the order of execution unless otherwise specified.

Claims

1. A truck tarpaulin system, characterized in that: include: A tarpaulin frame having a first connecting portion formed on its outer contour, wherein the tarpaulin frame includes a stake and a crossbar connected to the stake, wherein the crossbar is provided with a guide member; A tarpaulin cover matching the tarpaulin frame comprises a crossbeam and side beams connected to the crossbeam, and a flip-up device provided on the crossbeam. The flip-up device cooperates with the guide member so that the tarpaulin frame can be driven by the flip-up device to flip the tarpaulin cover relative to the tarpaulin frame. A tarpaulin covering the outer sides of the tarpaulin frame and the tarpaulin cover has a side edge and a bottom edge connected thereto, and a second connecting portion is provided on the side edge; A cloth rolling rod, the side wall of which is connected to the bottom edge, and with the rotation of the cloth rolling rod, the tarpaulin can be extended and retracted outside the cloth rolling rod along the circumference of the cloth rolling rod, so that the cloth rolling rod moves along the outer contour of the tarpaulin frame and the tarpaulin cover; Wherein, when the cloth rolling rod moves along the outer contour of the tarpaulin frame, the first connecting portion cooperates with the second connecting portion to seal the gap between the tarpaulin and the tarpaulin frame.

2. The truck tarpaulin system according to claim 1, characterized in that: The first connecting portion is a female Velcro patch, and the second connecting portion is a male Velcro patch, and the male Velcro patches are bonded to each other.

3. The truck tarpaulin system according to claim 1, characterized in that: The first connecting portion is a first chain belt having primary chain teeth, and the second connecting portion is a second chain belt having secondary chain teeth; The truck tarpaulin system also includes A pull head, adapted to the main chain teeth and the auxiliary chain teeth respectively; A driving member connected to the end of the cloth rolling rod; The cloth closing device is respectively connected to the pull head and the driving member, and in response to the driving action of the driving member, the pull head can move along the outer contour of the tarpaulin frame under the drive of the cloth closing device to achieve staggered engagement or separation between the main chain teeth and the auxiliary chain teeth.

4. The truck tarpaulin system according to claim 3, characterized in that: The cloth sealing device comprises: a fixing plate connected to the slider; A connecting member, two ends of which are respectively connected to the fixing plate and the driving member.

5. The truck tarpaulin system according to claim 4, characterized in that: A pull ring is provided on the surface of the fixing plate; The connecting member has a horizontal section and a vertical section connected to each other, the head end of the horizontal section is plugged into the pull ring, the tail end of the horizontal section is fixedly connected to the first end of the vertical section, and the second end of the vertical section is rotationally connected to the driving member.

6. The truck tarpaulin system according to claim 4, characterized in that: The connecting member includes: a first connecting rod, a second connecting rod and a third connecting rod, the two ends of the second connecting rod are respectively rotatably connected to one end of the first connecting rod and one end of the third connecting rod, and the other end of the first connecting rod and the other end of the third connecting rod are respectively connected to the driving member and the fixed plate.

7. The truck tarpaulin system according to claim 6, characterized in that: A shaft sleeve is provided on the top of the driving member, and a rotating shaft is provided on the end of the first connecting rod. The rotating shaft cooperates with the shaft sleeve to realize the rotational connection between the first connecting rod and the driving member.

8. The truck tarpaulin system according to claim 1, characterized in that: The tarpaulin includes a main cloth and a side cloth, the side cloth is fixed to the surface of the stake, the first connecting portion is formed on the side edge of the side cloth, and the second connecting portion is formed on the side edge of the main cloth.

9. The truck tarpaulin system according to claim 8, characterized in that: The truck tarpaulin system further comprises: a cloth tightening assembly provided on the tarpaulin frame, connected to the side cloth, and having a rotation axis parallel to the height direction and / or width direction of the tarpaulin frame; Wherein, as the cloth tightening assembly rotates along the rotation axis, the tarpaulin can be tightened along the extension direction of the bottom edge.

10. The truck tarpaulin system according to claim 1, characterized in that: The truck tarpaulin system further comprises a telescopic rod assembly, one end of which is connected to the cloth rolling rod, and the other end of which is connected to the flip cover device.

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