A tarpaulin towing assist structure

Abstract

This utility model provides a tarpaulin traction auxiliary structure, including a frame locking structure for fixed connection with a vehicle tarpaulin frame. A lifting frame is vertically mounted on the frame locking structure, and an anti-detachment groove is vertically formed at the top of the lifting frame. A steering wheel, higher than the vehicle tarpaulin frame, is vertically rotatably mounted within the anti-detachment groove. Two limiting parts are vertically positioned at the top of the lifting frame, and the steering wheel is located between the two limiting parts, with the top of the limiting parts higher than the top of the steering wheel. This utility model provides a tarpaulin traction auxiliary structure with improved operational performance.

Description

Technical Field

[0001] This utility model belongs to the field of tarpaulin traction auxiliary structure. Background Technology

[0002] A tarpaulin (or waterproof fabric) is a high-strength, flexible, and waterproof material, commonly used as canvas, polyurethane-coated polyester, or made of polyethylene plastic. Tarpaulins typically have sturdy grommets at the corners or edges for easy threading of ropes for binding, hanging, or covering.

[0003] Currently, in the construction of car canopies, the frame is typically fixed first, and then the tarpaulin is placed on top of the frame. Common frames include a vertical frame, a supporting frame at the top of the vertical frame (horizontal, inclined, or an arc-shaped structure with an opening facing downwards), and a reinforcing frame horizontally connecting all or part of the supporting frame. These components form a stable framework. When covering the tarpaulin with the frame, a rope is usually tied to one end of the tarpaulin, then the rope is crossed across the frame, and finally, the rope is pulled to pull the tarpaulin over the top of the frame. However, in practice, it has been found that because the tarpaulin is flexible, during the forward pulling process, the tarpaulin will lower under gravity, causing the end of the tarpaulin to come into contact with the frame that needs to be overcome (such as the supporting frame). This requires a greater force to pull the rope and move the tarpaulin over the corresponding frame, increasing the workload and increasing the risk of the frame scratching the tarpaulin, resulting in poor operational efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a tarpaulin traction auxiliary structure to solve the problem of poor operation.

[0005] To solve the above-mentioned technical problems, this utility model provides a tarpaulin traction auxiliary structure, including a frame locking structure. The frame locking structure is used to fix and connect with the tarpaulin frame. A lifting frame is vertically arranged on the frame locking structure. An anti-detachment groove is vertically opened on the top of the lifting frame. A steering wheel higher than the tarpaulin frame is vertically rotatably arranged in the anti-detachment groove. Two limiting parts are vertically arranged on the top of the lifting frame. The steering wheel is located between the two limiting parts, and the top of the limiting part is higher than the top of the steering wheel.

[0006] The present invention is further configured such that an annular limiting groove is provided on the outer wall of the steering wheel.

[0007] The present invention is further configured such that the top of the limiting part is provided with an extension part, the two extension parts are facing each other, the free end of the extension part is provided with a horizontal telescopic groove, the top of the extension part is provided with an unlocking groove communicating with the telescopic groove, the unlocking groove is elongated, a telescopic tongue is movably provided in the telescopic groove, the outer wall of the telescopic tongue is movably attached to the inner wall of the telescopic groove, the top of the telescopic tongue is provided with an unlocking part, the unlocking part moves through the unlocking groove, and an elastic member that is continuously compressed is provided between the inner end of the telescopic tongue and the inner end of the telescopic groove, and the free ends of the two telescopic tongues abut against each other in the standby state.

[0008] The present invention is further configured such that the top of the free end of the telescopic tongue is chamfered or rounded.

[0009] The present invention is further configured such that the skeleton locking structure includes:

[0010] The vertical part is vertical and the horizontal part is horizontally connected to the bottom of the vertical part. The lifting frame is connected to the vertical part, and the side of the vertical part near the horizontal part abuts against the outside of the canopy frame.

[0011] An upper clamping member is disposed on the side of the vertical part and abuts against the top of the canopy frame;

[0012] The lower clamping member is inclined and movably connected to the horizontal part, and the horizontal part is provided with a driving structure for driving the horizontal part to move closer to or away from the upper clamping member. The lower clamping member abuts against the inner side of the bottom of the canopy frame.

[0013] The present invention is further configured such that the free end of the horizontal part is inclined, and the free end of the horizontal part is inclinedly provided with a sliding groove with a cross section of dovetail or T-shape. The lower side of the lower clamping member is provided with a sliding part that movably cooperates with the sliding groove. The driving structure includes a driving seat, which is located at the bottom of the free end of the horizontal part. A driving screw is rotatably provided on the driving seat, and the driving screw is threadedly engaged with the lower clamping member.

[0014] The present invention is further configured such that a stabilizing block is provided on the top of the lower clamping member, and an arc-shaped stabilizing groove is provided on the top of the stabilizing block, with the canopy frame abutting against the inner wall of the stabilizing groove.

[0015] The present invention is further configured such that the upper clamping member includes a swing arm, the middle part of the swing arm is vertically hinged to the vertical part, both ends of the swing arm are horizontally provided with a bonding column, and a bonding part is hinged on the bonding column, and both bonding parts are attached to the top of the canopy frame.

[0016] The present invention is further configured such that: a plurality of evenly distributed lifting columns are horizontally arranged on the outer side of the lifting frame; a convex-shaped movable hole is vertically opened through the vertical frame; the lifting frame moves vertically through the movable hole, and all four sides of the lifting frame are movably fitted against the inner wall of the movable hole; all lifting columns can pass through the movable hole; a lifting plate is vertically rotatably arranged inside the vertical frame; the inner side of the lifting plate is provided with a lifting part with a spiral cross-section; any position of the lifting part can be engaged between any two adjacent lifting columns; and an operating handle for rotating the lifting plate is provided on the outer side of the lifting plate.

[0017] Compared with existing technologies, this utility model provides a tarpaulin traction auxiliary structure. When covering the top of the tarpaulin on the tarpaulin frame, firstly, one end of the rope is connected to one end of the tarpaulin, and the rope is used to pull and cover the tarpaulin frame. Then, the frame connecting structure is fixedly connected to the tarpaulin frame, at which point the steering wheel is higher than the tarpaulin frame. Next, the free end of the rope (i.e., the traction end) is passed over the steering wheel, and finally the rope is pulled downwards. At this time, the extension is raised by the steering wheel, so the rope is pulled upwards at an angle. At the same time, the free end of the tarpaulin is also pulled upwards at an angle. In this way, even if the length direction of part of the tarpaulin frame is perpendicular to the direction of movement of the tarpaulin, since the free end of the tarpaulin can be slightly higher than the tarpaulin frame, it can effectively prevent the tarpaulin from being affected by the tarpaulin frame. This not only prevents the tarpaulin from being caught on the tarpaulin frame, which would require higher traction force, but also effectively prevents the tarpaulin from being damaged by welding slag, joints, or other structures on the tarpaulin frame, ensuring the integrity of the tarpaulin and resulting in better operational performance.

[0018] It should also be understood that although the height of the tarpaulin's pulling end is slightly higher than the canopy frame when pulling it, the tarpaulin's height above the frame is minimal. Throughout the pulling process, the primary goal is to keep the pulling end of the tarpaulin above the frame it needs to cross (the tarpaulin can then move along the frame). This means the pulling force required for the tarpaulin is not too high. Furthermore, because the tarpaulin has a certain degree of strength and rigidity, once the pulling end has crossed the frame, even if the remaining tarpaulin adheres to the frame, it is relatively difficult to scratch or tear, ensuring the tarpaulin's continued usability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the present invention in use;

[0020] Figure 2 yes Figure 1 Enlarged view of section A;

[0021] Figure 3 yes Figure 2 Enlarged view of section B;

[0022] Figure 4 yes Figure 2 Enlarged view of section C;

[0023] Figure 5 yes Figure 2 Enlarged view of section D;

[0024] Figure 6 This is a schematic diagram of the structure of this utility model;

[0025] Figure 7 yes Figure 6 Enlarged view of section E in the middle;

[0026] Figure 8 yes Figure 6 Enlarged view of section F in the middle;

[0027] Figure 9 This is a cross-sectional view of the steering wheel portion in this utility model;

[0028] Figure 10 This is a schematic diagram of the lifting plate in this utility model.

[0029] The components are as follows: 1. Elevating frame; 2. Anti-detachment groove; 3. Steering wheel; 4. Limiting part; 5. Limiting groove; 6. Extension part; 7. Telescopic groove; 8. Unlocking groove; 9. Telescopic tongue; 10. Unlocking part; 11. Elastic element; 12. Vertical part; 13. Horizontal part; 14. Lower clamping part; 15. Sliding groove; 16. Sliding part; 17. Drive seat; 18. Drive screw; 19. Stabilizing block; 20. Stabilizing groove; 21. Swing arm; 22. Adhesive column; 23. Adhesive part; 24. Elevating column; 25. Movable hole; 26. Lifting plate; 27. Lifting part; 28. Operating handle. Detailed Implementation

[0030] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed explanation of the tarpaulin traction auxiliary structure proposed in this utility model. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model. The same or similar reference numerals in the drawings represent the same or similar parts.

[0031] A tarpaulin traction auxiliary structure, such as Figures 1 to 10As shown, it includes a frame locking structure for fixed connection with the canopy frame. A lifting frame 1 is vertically arranged on the frame locking structure. An anti-detachment groove 2 is vertically opened on the top of the lifting frame 1. A steering wheel 3, which is higher than the canopy frame, is vertically rotatably arranged in the anti-detachment groove 2. Two limiting parts 4 are vertically arranged on the top of the lifting frame 1. The steering wheel 3 is located between the two limiting parts 4, and the top of the limiting part 4 is higher than the top of the steering wheel 3.

[0032] The outer wall of the steering wheel 3 is provided with an annular limiting groove 5, which is used to improve the stability of the interaction between the rope and the steering wheel 3.

[0033] The top of the limiting part 4 is provided with an extension part 6, and the two extension parts 6 are facing each other. The free end of the extension part 6 is provided with a horizontal telescopic groove 7. The top of the extension part 6 is provided with an unlocking groove 8 communicating with the telescopic groove 7. The unlocking groove 8 is elongated. A telescopic tongue 9 is movably provided in the telescopic groove 7. The outer wall of the telescopic tongue 9 is movably attached to the inner wall of the telescopic groove 7. The top of the telescopic tongue 9 is provided with an unlocking part 10, which moves through the unlocking groove 8. An elastic member 11 that is continuously compressed is provided between the inner end of the telescopic tongue 9 and the inner end of the telescopic groove 7. In the standby state, the free ends of the two telescopic tongues 9 abut against each other. The top of the free end of the telescopic tongue 9 is chamfered or rounded. When the rope is applied to the steering wheel 3, simply press the rope down. The rope can then act on the chamfered or rounded part of the telescopic tongue 9, directly driving the two telescopic tongues 9 to move toward the inner end of the corresponding telescopic hole. After the rope passes over the two telescopic tongues 9, the telescopic tongues 9 pop outward under the elastic force of the elastic element 11, and continue to limit the rope.

[0034] The skeleton locking structure includes:

[0035] The vertical part 12 is vertical and the horizontal part 13 is horizontally connected to the bottom of the vertical part 12. The lifting frame 1 is connected to the vertical part 12. The side of the vertical part 12 near the horizontal part 13 abuts against the outside of the canopy frame.

[0036] An upper clamping member is disposed on the side of the vertical part 12 and abuts against the top of the canopy frame;

[0037] The lower clamping member 14 is inclined and movably connected to the horizontal part 13, and the horizontal part 13 is provided with a driving structure for driving the horizontal part 13 to move closer to or away from the upper clamping member. The lower clamping member 14 abuts against the inner side of the bottom of the canopy frame.

[0038] The free end of the horizontal part 13 is inclined, and the free end of the horizontal part 13 is inclinedly provided with a sliding groove 15 with a dovetail or T-shaped cross section. The lower clamping member 14 is provided with a sliding part 16 that is movably engaged with the sliding groove 15. The driving structure includes a driving seat 17, which is located at the bottom of the free end of the horizontal part 13. A driving screw 18 is rotatably provided on the driving seat 17, and the driving screw 18 is threadedly engaged with the lower clamping member 14.

[0039] The top of the lower clamping member 14 is provided with a stabilizing block 19, and the top of the stabilizing block 19 is provided with an arc-shaped stabilizing groove 20, and the canopy frame abuts against the inner wall of the stabilizing groove 20.

[0040] The upper clamping member includes a swing arm 21, the middle part of which is vertically hinged to the vertical part 12. Both ends of the swing arm 21 are horizontally provided with a bonding post 22, and a bonding part 23 is hinged on the bonding post 22. Both bonding parts 23 are attached to the top of the canopy frame.

[0041] The outer side of the lifting frame 1 is provided with several evenly distributed lifting columns 24. A vertically penetrating vertical frame is provided with a movable hole 25 with a convex cross-section. The lifting frame 1 moves vertically through the movable hole 25, and all four sides of the lifting frame 1 are movably fitted to the inner wall of the movable hole 25. All lifting columns 24 can pass through the movable hole 25. A lifting plate 26 is vertically rotatably provided inside the vertical frame. The inner side of the lifting plate 26 is provided with a lifting part 27 with a spiral cross-section. The lifting part 27 can be engaged between any two adjacent lifting columns 24 at any position. An operating handle 28 for rotating the lifting plate 26 is provided on the outer side of the lifting plate 26.

[0042] This utility model provides a tarpaulin traction auxiliary structure. When covering the top of the tarpaulin on the tarpaulin frame, firstly, one end of a rope is connected to one end of the tarpaulin, and the rope is pulled to cover the tarpaulin frame. Then, the frame connecting structure is fixedly connected to the tarpaulin frame, at which point the steering wheel 3 is higher than the tarpaulin frame. Next, the free end of the rope (i.e., the traction end) is passed over the steering wheel 3, and finally the rope is pulled downwards. At this time, the extension is raised by the steering wheel 3, so the rope is pulled upwards at an angle. At the same time, the free end of the tarpaulin is also pulled upwards at an angle. In this way, even if the length direction of part of the tarpaulin frame is perpendicular to the direction of movement of the tarpaulin, since the free end of the tarpaulin can be slightly higher than the tarpaulin frame, the tarpaulin can be effectively prevented from being affected by the tarpaulin frame. This not only prevents the tarpaulin from being caught on the tarpaulin frame, which would require higher traction force, but also effectively prevents the tarpaulin from being damaged by welding slag, joints, or other structures on the tarpaulin frame, ensuring the integrity of the tarpaulin and resulting in better operational performance.

[0043] It should also be understood that although the height of the tarpaulin's pulling end is slightly higher than the canopy frame when pulling it, the tarpaulin's height above the frame is minimal. Throughout the pulling process, the primary goal is to keep the pulling end of the tarpaulin above the frame it needs to cross (the tarpaulin can then move along the frame). This means the pulling force required for the tarpaulin is not too high. Furthermore, because the tarpaulin has a certain degree of strength and rigidity, once the pulling end has crossed the frame, even if the remaining tarpaulin adheres to the frame, it is relatively difficult to scratch or tear, ensuring the tarpaulin's continued usability.

[0044] In practical use, the drive screw 18 is first rotated to drive the lower clamping member 14 away from the swing arm 21. Then, the vertical part 12 is moved to fit against the outside of the canopy frame. The vertical part 12 is then moved downward so that both fitting parts 23 fit against the top of the canopy frame. Since the swing arm 21 is hinged to the vertical part 12, and both fitting parts 23 are hinged to the fitting post 22, even when used with canopy frames of different shapes (whether the top of the canopy frame is arc-shaped or straight), the two fitting parts 23 can fit well against the top of the canopy frame. Then, the drive screw 18 is rotated to move the lower clamping member 14 upward until the stabilizing block 19 stably abuts against the inside of the bottom of the canopy frame. At this point, the stabilizing block 19, the fitting parts 23, and the vertical part 12 are stably connected to the canopy frame. At the same time, since the swing arm 21 has a certain length, the connection stability between the frame locking structure and the canopy frame can be further improved, and relative angular movement will not occur. Meanwhile, the inner wall of the stabilizing block 19 is an arc-shaped stabilizing groove 20, and the entire stabilizing block 19 is made of a certain degree of flexibility, such as rubber, which can further ensure the connection stability between the frame locking structure and the canopy frame.

[0045] The rope then passes between the two limiting parts 4 and acts on the steering wheel 3, or it passes from top to bottom over the two telescopic tongues 9 and acts on the steering wheel 3. At this point, it can pull and extend, driving the tarpaulin toward the frame locking structure. In actual use, at least two frame locking structures need to be used simultaneously to ensure that the rope fully pulls the tarpaulin. During the pulling process, not only does the limiting groove 5 limit the rope, but the limiting parts 4, the extension parts 6, and the telescopic tongues 9 also limit the rope, ensuring stable pulling.

[0046] Initially, when pulling the tarpaulin, the free end of the tarpaulin is far from the frame locking structure, requiring the steering wheel 3 to have a relatively high height to effectively raise the free end of the tarpaulin above the frame it needs to cross. As the tarpaulin moves, the height requirement for the steering wheel 3 decreases. Lowering the steering wheel 3 is achieved by simply rotating the Z-shaped operating handle 28, which rotates the lifting plate 26. Simultaneously, the (Archimedes) spiral lifting part 27 acts on the lifting column 24, lowering the height of the lifting frame 1 and the steering wheel 3. This reduces the required pulling force when subsequently pulling the tarpaulin.

[0047] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.

[0048] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A tarpaulin traction auxiliary structure, characterized in that, The system includes a frame locking structure for fixed connection with the canopy frame. A lifting frame (1) is vertically arranged on the frame locking structure. An anti-detachment groove (2) is vertically opened on the top of the lifting frame (1). A steering wheel (3) higher than the canopy frame is vertically rotatably arranged in the anti-detachment groove (2). Two limiting parts (4) are vertically arranged on the top of the lifting frame (1). The steering wheel (3) is located between the two limiting parts (4), and the top of the limiting part (4) is higher than the top of the steering wheel (3).

2. The tarpaulin traction auxiliary structure according to claim 1, characterized in that, The outer wall of the steering wheel (3) is provided with an annular limiting groove (5).

3. The tarpaulin traction auxiliary structure according to claim 1, characterized in that, The top of the limiting part (4) is provided with an extension part (6), and the two extension parts (6) are facing each other. The free end of the extension part (6) is provided with a horizontal telescopic groove (7). The top of the extension part (6) is provided with an unlocking groove (8) that communicates with the telescopic groove (7). The unlocking groove (8) is elongated. A telescopic tongue (9) is movably provided in the telescopic groove (7). The outer wall of the telescopic tongue (9) is movably attached to the inner wall of the telescopic groove (7). The top of the telescopic tongue (9) is provided with an unlocking part (10). The unlocking part (10) moves through the unlocking groove (8). An elastic member (11) that is continuously compressed is provided between the inner end of the telescopic tongue (9) and the inner end of the telescopic groove (7). In the standby state, the free ends of the two telescopic tongues (9) abut against each other.

4. The tarpaulin traction auxiliary structure according to claim 3, characterized in that, The top of the free end of the telescopic tongue (9) is chamfered or rounded.

5. The tarpaulin traction auxiliary structure according to claim 1, characterized in that, The skeleton locking structure includes: The vertical part (12) is vertical and the horizontal part (13) is horizontally connected to the bottom of the vertical part (12). The lifting frame (1) is connected to the vertical part (12). The side of the vertical part (12) near the horizontal part (13) abuts against the outside of the canopy frame. Upper clamping member, the upper clamping member is disposed on the side of the vertical part (12) and abuts against the top of the canopy frame; The lower clamping member (14) is inclined and movably connected to the horizontal part (13), and the horizontal part (13) is provided with a driving structure for driving the horizontal part (13) to move closer to or away from the upper clamping member. The lower clamping member (14) abuts against the inner side of the bottom of the canopy frame.

6. The tarpaulin traction auxiliary structure according to claim 5, characterized in that, The free end of the horizontal part (13) is inclined, and the free end of the horizontal part (13) is inclined to open a sliding groove (15) with a cross section of dovetail or T-shape. The lower clamping member (14) is provided with a sliding part (16) that is movably engaged with the sliding groove (15). The driving structure includes a driving seat (17), which is located at the bottom of the free end of the horizontal part (13). A driving screw (18) is rotatably provided on the driving seat (17), and the driving screw (18) is threadedly engaged with the lower clamping member (14).

7. A tarpaulin traction auxiliary structure according to claim 5 or 6, characterized in that, The top of the lower clamping member (14) is provided with a stabilizing block (19), and the top of the stabilizing block (19) is provided with an arc-shaped stabilizing groove (20), and the canopy frame abuts against the inner wall of the stabilizing groove (20).

8. The tarpaulin traction auxiliary structure according to claim 5, characterized in that, The upper clamping member includes a swing arm (21), the middle part of which is vertically hinged to the vertical part (12). Both ends of the swing arm (21) are horizontally provided with a bonding column (22), and a bonding part (23) is hinged on the bonding column (22). Both bonding parts (23) are attached to the top of the canopy frame.

9. The tarpaulin traction auxiliary structure according to claim 5, characterized in that, The outer side of the lifting frame (1) is provided with several evenly distributed lifting columns (24). A movable hole (25) with a convex cross-section is opened through the vertical frame. The lifting frame (1) moves vertically through the movable hole (25), and the four sides of the lifting frame (1) are movable and fit against the inner wall of the movable hole (25). All the lifting columns (24) can pass through the movable hole (25). A lifting plate (26) is vertically rotatably arranged inside the vertical frame. The inner side of the lifting plate (26) is provided with a lifting part (27) with a spiral cross-section. The lifting part (27) can be engaged between any two adjacent lifting columns (24) at any position. An operating handle (28) for rotating the lifting plate (26) is provided on the outer side of the lifting plate (26).

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