Truck tarpaulin structure

Abstract

The utility model provides a truck tarpaulin structure, aims to solve the problem that water is easy to accumulate after tarpaulin is covered, and relates to the technical field of truck tarpaulin. The truck tarpaulin structure comprises tarpaulin, a tarpaulin folding driving mechanism, a tarpaulin covering driving mechanism and a door-shaped frame which is rotatably installed on a truck carriage and used for folding and covering the tarpaulin, and a plurality of arc-shaped supports which are bent downwards and fixed to the tarpaulin to enable the tarpaulin to be in an arc shape are arranged on the lower side of the tarpaulin in the length direction of the tarpaulin at intervals. The tarpaulin is provided with at least one row of hanging holes which are linearly arranged along the length direction of the tarpaulin, and each row of hanging holes are arranged in one-to-one correspondence with the arc-shaped supports; awning folding ropes in one-to-one correspondence with the lifting holes in each row are arranged above the arc-shaped supports, one ends of the awning folding ropes are connected with the door-shaped frame, and the other ends of the awning folding ropes penetrate through the lifting holes in the corresponding row and then are connected with the awning folding driving mechanism. According to the utility model, the tarpaulin body can be folded more easily, and the service life is longer.

Description

Technical Field

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

[0002] When transporting goods, especially slag and rocks, trucks must cover the roof with tarpaulins to ensure transportation safety and reduce environmental pollution. Truck tarpaulins mainly use tarpaulin covering mechanisms to retract the tarpaulin.

[0003] Chinese patent application number 202221928140.1 discloses a covering device for a truck compartment, including a awning folding drive mechanism, a awning covering drive mechanism, a tarpaulin and a door frame, etc. The door frame can be rotatably installed on the truck compartment, one end of the tarpaulin is fixed to the truck, and the other end is fixed to the cross bar of the door frame. The awning folding drive mechanism is connected to the door frame through a awning folding rope arranged above the tarpaulin to drive the door frame to rotate in the direction of folding the tarpaulin, thereby folding the tarpaulin, and the awning covering drive mechanism is connected to the door frame to drive the door frame to rotate in the direction of covering the tarpaulin so that the tarpaulin covers the truck compartment. However, in order to facilitate loading and unloading of goods on trucks, tarpaulin support is generally not provided on the top of the truck compartment. After the tarpaulin is covered on the truck compartment, it is mainly supported by the side panels on both sides of the truck compartment. After the tarpaulin is covered on the truck compartment, a flat area is formed above the truck compartment. In addition, the tarpaulin material is relatively soft and easily deformed, which causes the tarpaulin to easily accumulate water on rainy days, making the tarpaulin heavier, which not only increases the difficulty of folding the tarpaulin, but also easily causes the tarpaulin to be torn during the folding process. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a truck tarpaulin structure to solve the problem that water easily accumulates after the tarpaulin is covered.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows: a truck tarpaulin structure includes a tarpaulin, a tarpaulin retracting drive mechanism, a tarpaulin covering drive mechanism, and a portal frame rotatably mounted on a truck compartment for retracting and covering the tarpaulin, one end of the tarpaulin is fixed to the front end of the truck compartment, and the other end is connected to the portal frame, the tarpaulin covering drive mechanism is connected to the portal frame, the lower side of the tarpaulin is provided with a plurality of arc-shaped supports that are bent downward and fixed to the tarpaulin to form an arched shape at intervals along the length direction of the tarpaulin, the tarpaulin is also provided with at least one row of hanging holes arranged in a straight line along the length direction of the tarpaulin, and the hanging holes in each row are provided in a one-to-one correspondence with the arc-shaped supports;

[0006] A awning folding rope corresponding to each row of the hanging holes is provided above the arc-shaped support. One end of the awning folding rope is connected to the door frame, and the other end passes through the corresponding row of hanging holes and is connected to the awning folding drive mechanism.

[0007] Furthermore, auxiliary lifting rings fixed on the tarpaulin are provided between the adjacent lifting holes in the same row, and the auxiliary lifting rings are hung on the corresponding tarpaulin-collecting ropes above.

[0008] Furthermore, the hanging holes are in two rows and are respectively arranged on both sides of the tarpaulin.

[0009] Furthermore, the arc-shaped support is clamped and fixed on the tarpaulin by a plurality of tarpaulin clips arranged above the tarpaulin, and the hanging holes are arranged on the tarpaulin clips.

[0010] Furthermore, the arc-shaped support is formed by elastic bending of an elastic member, and one end of the arc-shaped support is provided with a pull rope whose one end is connected to the other end of the arc-shaped support.

[0011] Furthermore, the arc-shaped support is a glass fiber rod.

[0012] Furthermore, the pull rope is detachably connected to both ends of the arc-shaped support.

[0013] Furthermore, the pull rope is connected to both ends of the arc-shaped support through hooks.

[0014] Furthermore, the canopy driving mechanism includes a motor, a winch and a canopy rope, one end of the canopy rope is connected to the door frame, and the other end is wound around the winch, and the motor is in driving connection with the winch;

[0015] The awning folding driving mechanism is a tension spring.

[0016] Furthermore, a tightening rope is passed through the edge of the tarpaulin.

[0017] The beneficial effects of the present invention are as follows: the truck tarpaulin structure of the present invention can support the tarpaulin 1 through the arc-shaped support 2 after the tarpaulin is stretched and unfolded along the length direction to cover the truck compartment, so that the tarpaulin is arched and covers the truck compartment, which is convenient for drainage of the tarpaulin, and the tarpaulin is not easy to accumulate water. The service life of the tarpaulin is longer, and the arc-shaped support is fixed on the tarpaulin. When the tarpaulin is folded, the arc-shaped support also moves closer to it. The arc-shaped support will not affect the loading and unloading of goods on the truck, and there is no need to remove the arc-shaped support from the compartment separately, so it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a truck tarpaulin of the present utility model;

[0019] Figure 2 yes Figure 1 Sectional view along AA;

[0020] Figure 3 It is a structural diagram of an arc-shaped support fixation;

[0021] Figure 4 It is a structural diagram of a tarpaulin clip;

[0022] Figure 5 This is another structural diagram of the tarpaulin clip;

[0023] Figure 6 It is a schematic diagram of the structure of the pull rope and the arc support hanging;

[0024] Shown in the figure: tarpaulin 1, arc-shaped support 2, pull rope 3, truck compartment 4, tarpaulin-covering rope 5, tightening rope 6, tarpaulin clamp 7, door frame 8, lifting hole 11, auxiliary lifting ring 12, arc-shaped body section 21, end 22, hook 31, rotating wheel 71, motor 91, winch 92, tarpaulin-covering rope 93, tarpaulin-covering drive mechanism 94. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] like Figure 1 、 Figure 2 As shown, the truck tarpaulin structure of the present invention includes a tarpaulin 1, a tarpaulin retracting drive mechanism 94, a tarpaulin covering drive mechanism, and a portal frame 8 rotatably mounted on the truck compartment 4 for tarpaulin retracting and covering. The tarpaulin 1 is secured at one end to the front end of the truck compartment 4 and connected to the portal frame 8 at the other end. The tarpaulin covering drive mechanism is connected to the portal frame 8 to rotate the portal frame 8 in the direction of covering the tarpaulin, thereby covering the truck compartment with the tarpaulin. To address the problem of water accumulation after the tarpaulin is covered, the present invention provides a plurality of downwardly curved supports 2, spaced apart along the length of the tarpaulin 1, fixed to the tarpaulin 1 to form an arched shape. The tarpaulin 1 is provided with at least one row of lifting holes 11 arranged linearly along the length of the tarpaulin 1, with each row of lifting holes 11 corresponding one-to-one with each of the curved supports 2. Above the curved supports 2, a tarpaulin-collecting rope 5 is provided, corresponding one-to-one with each row of lifting holes 11. One end of each rope 5 is connected to the portal frame 8, and the other end passes through the corresponding row of lifting holes 11 and is connected to the tarpaulin-collecting drive mechanism 94. Each rope 5 corresponds one-to-one with each row of lifting holes 11, i.e., one rope 5 is provided for each row of lifting holes 11. Each row of lifting holes 11 corresponds one-to-one with each of the curved supports 2, i.e., each row of lifting holes 11 is provided with one lifting hole 11.

[0027] In the present invention, a plurality refers to at least two.

[0028] The awning drive mechanism 94 and the awning drive mechanism can both use motors, and the two can be the same motor. Of course, the awning drive mechanism 94 and the awning drive mechanism can also use a motor in one mechanism and a tension spring or spring in the other mechanism. Figure 1As shown, the awning retraction drive mechanism 94 is a tension spring. The awning drive mechanism includes a motor 91, a winch 92, and a awning rope 93. One end of the awning rope 93 is connected to the portal frame 8, and the other end is wound around the winch 92. The motor is in transmission connection with the winch 92. The motor drives the winch 92 to rotate. The rotation of the winch pulls the awning rope 93, which in turn pulls the portal frame 8 in the direction of covering the awning, thereby draping the awning over the truck bed. As the portal frame 8 rotates in the direction of covering the awning, the awning rope 5 deforms the tension spring. To retract the awning, the motor rotates in the opposite direction, releasing the awning rope 93. The restoring force of the tension spring pulls the portal frame 8 in the direction of retracting the awning through the awning rope 5, thereby retracting the awning.

[0029] like Figure 1 and Figure 2 As shown, the truck tarpaulin structure of the present invention has a plurality of arc-shaped supports 2 that are bent downward and fixed on the tarpaulin 1 and make the tarpaulin arched. The tarpaulin 1 has at least one row of hanging holes 11 arranged in a straight line along the length of the tarpaulin 1, and each row of the hanging holes 11 is arranged in a one-to-one correspondence with the arc-shaped supports 2. The arc-shaped supports 2 have a tarpaulin collection rope 5 that corresponds to each row of the hanging holes 11. One end of the 5 is connected to the door frame 8, and the other end passes through the corresponding row of the hanging holes 11 and is connected to the tarpaulin retraction drive mechanism 94. In this way, when the truck tarpaulin is driven by the tarpaulin retraction drive mechanism to rotate the door frame, so that the tarpaulin is stretched and unfolded to cover the truck compartment 4, the weight of the arc support 2 can be borne by the straightened tarpaulin retraction rope 5, so that the arc support 2 can support the tarpaulin 1, so that the tarpaulin is arched and covered on the truck compartment. In this way, the tarpaulin is easy to drain, the tarpaulin is not easy to accumulate water, the tarpaulin is easier to retract, and the service life of the tarpaulin is longer. Because the arc support 2 is fixed to the tarpaulin 1 at intervals, it will not affect the retraction of the tarpaulin 1. When the tarpaulin is retracted, the arc support 2 also moves closer to it. The arc support 2 will not affect the loading and unloading of the truck, and there is no need to remove the arc support 2 separately.

[0030] The specific number of rows of hanging holes 11 can be one or more rows. The more rows of hanging holes 11 there are, the more corresponding furling ropes 5 there are, and the better the stability of the tarpaulin 1 after it is unfolded and covered on the truck compartment. When the hanging holes 11 are in one row, it can be understood that in order to ensure the stability of the tarpaulin, the hanging holes 11 should be set in the middle position of the tarpaulin 1, so that the furling ropes 5 are also set above the middle position of the tarpaulin 1. Figure 1 and Figure 2As shown, in the embodiment of the present invention, the lifting holes 11 are arranged in two rows, one on each side of the tarpaulin 1. Thus, two tarpaulin-collecting ropes are also provided, one on each side above the truck compartment. In some embodiments, the lifting holes 11 are arranged in three rows, one on each side and one in the middle of the tarpaulin 1. Accordingly, three tarpaulin-collecting ropes are also provided.

[0031] The length of the arc-shaped support 2 in the present invention is generally adapted to the width of the truck compartment 4 covered by the tarpaulin.

[0032] Specifically, the arc support 2 can be fixed to the tarpaulin 1 by bonding, bundling, riveting, bolting, etc. In the embodiment of the present utility model, Figure 3 、 Figure 4 As shown, the arc-shaped support 2 is clamped and fixed on the tarpaulin 1 by a plurality of tarpaulin clips 7 arranged above the tarpaulin 1, and the hanging holes 11 are arranged on the tarpaulin clips 7. The tarpaulin clips 7 can adopt various existing openable and closable clamping mechanisms, such as spring clips or clamps locked with bolts (such as Figure 4 As shown). The arc-shaped support 2 is fixed to the tarpaulin 1 by means of a tarpaulin clamp 7. The disassembly and installation of the arc-shaped support 2 is more convenient, which is not only convenient for replacement when the arc-shaped support 2 is damaged, but more importantly, it will not cause damage to the tarpaulin by punching, which is beneficial to ensuring the service life of the tarpaulin. The lifting hole 11 is set on the tarpaulin clamp 7, and the tarpaulin collection rope 5 directly transmits the supporting force to the arc-shaped support 2 through the tarpaulin clamp 7, and the arc-shaped support 2 then supports the tarpaulin 1. Compared with the method of directly gluing or fixing the lifting hole 11 to the tarpaulin 1, the tarpaulin 1 of the above structure is better stressed and less prone to damage, which is beneficial to improving the service life of the tarpaulin. The specific number of tarpaulin clamps 7 can be one or more, based on the ability to stably fix the arc-shaped support 2. In the embodiment of the utility model, in order to facilitate the setting of the lifting holes 11 on both sides, the tarpaulin clamps 7 are two and are respectively set at the two ends of the arc-shaped support 2. Of course, the above-mentioned two tarpaulin clamps 7 can also be set as a whole.

[0033] In order to facilitate the folding of the tarpaulin, Figure 5 As shown, a rotating wheel 71 can be provided in the hanging hole 11 of the tarpaulin clamp 7 as needed to reduce the friction between the tarpaulin furling rope 5 and the tarpaulin clamp 7 .

[0034] It is understandable that the smaller the spacing between the arc supports 2 is, the more beneficial it is for supporting the tarpaulin 1. However, if the spacing is too small, the tarpaulin 1 will occupy a larger area after being folded. Taking all factors into consideration, in the present invention, the spacing between the arc supports 2 is preferably in the range of 400 to 800 mm. In order to prevent the tarpaulin from sagging between the arc supports 2, as shown in FIG. Figure 1As shown, auxiliary lifting rings 12 fixed to the tarpaulin 1 can be provided between adjacent lifting holes 11 in the same row, and the auxiliary lifting rings 12 are suspended on the corresponding tarpaulin furling ropes 5 above. After the auxiliary lifting rings 12 are provided, the spacing between the arc supports 2 can be appropriately increased, thereby reducing manufacturing costs.

[0035] The arc support can be made of a non-elastic part or an elastic part. When the arc support is made of an elastic part, the arc support can be formed into an arc by bending the elastic part through plastic deformation. Figure 2 As shown, the curved support 2 is formed by elastic bending of an elastic member. A pull cord 3 is attached to one end of the curved support 2, connecting one end to the other end of the curved support 2 to maintain its curvature. This structure creates an outward prestressed force within the curved support, making the upper portion of the curved support less susceptible to deformation when subjected to pressure, and providing greater strength, which is more conducive to supporting the tarpaulin.

[0036] The arc support 2 can be made of elastic materials such as steel wire, carbon rod, fiberglass rod, etc. In the present invention, the arc support is preferably made of fiberglass rod, which has low procurement cost and is lighter while meeting the strength requirements, adding less weight to the tarpaulin, which is conducive to ensuring the service life of the tarpaulin.

[0037] The pull rope 3 can be made of nylon rope, steel rope, etc. The pull rope 3 can be connected to the two ends of the arc support 2 in a detachable manner. Of course, it can also be connected to the two ends of the arc support 2 in a non-detachable manner such as welding. In the present invention, preferably, the pull rope 3 is detachably connected to the two ends of the arc support 2. In this way, when there are many trucks, the pull rope can be removed so that the truck can load more cargo (the cargo can be higher than the position of the pull rope). The pull rope 3 can be detachably connected to the two ends of the arc support 2 by bundling, bolting, etc. Figure 6 As shown, in order to facilitate the disassembly of the pull rope, it is best that the pull rope 3 is hooked to the two ends of the arc support 2 through a hook 31. The pull rope 3 and the hook 31 can be connected by welding, bundling, etc.

[0038] like Figure 2 As shown, in order to make the tarpaulin 1 cover the truck compartment better, the edge of the tarpaulin 1 is penetrated with a tightening rope 6. The tightening rope 6 can be used to tighten the edge opening of the truck tarpaulin so that it fits on the truck compartment.

Claims

1. A truck tarpaulin structure, comprising a tarpaulin (1), a tarpaulin retracting drive mechanism (94), a tarpaulin covering drive mechanism, and a gantry frame (8) rotatably mounted on a truck compartment (4) for retracting the tarpaulin, wherein one end of the tarpaulin (1) is fixed to the front end of the truck compartment (4), and the other end is connected to the gantry frame (8), and the tarpaulin covering drive mechanism is connected to the gantry frame (8), characterized in that: On the lower side of the tarpaulin (1), along the length direction of the tarpaulin (1), a plurality of arc-shaped supports (2) are arranged at intervals, which are bent downward and fixed on the tarpaulin (1) to make the tarpaulin (1) arched. The tarpaulin (1) is provided with at least one row of hanging holes (11) arranged in a straight line along the length direction of the tarpaulin (1), and the hanging holes (11) in each row are arranged in a one-to-one correspondence with the arc-shaped supports (2); A awning folding rope (5) corresponding to each row of the hanging holes (11) is provided above the arc-shaped support (2). One end of the awning folding rope (5) is connected to the door frame (8), and the other end passes through the corresponding row of the hanging holes (11) and is connected to the awning folding driving mechanism (94).

2. The truck tarpaulin structure according to claim 1, characterized in that: Auxiliary lifting rings (12) fixed on the tarpaulin (1) are further provided between the adjacent lifting holes (11) in the same row, and the auxiliary lifting rings (12) are hung on the corresponding tarpaulin-collecting ropes (5) above.

3. The truck tarpaulin structure according to claim 1, wherein: The hanging holes (11) are arranged in two rows and are respectively arranged on both sides of the tarpaulin (1).

4. The truck tarpaulin structure according to claim 1, wherein: The arc-shaped support (2) is clamped and fixed on the tarpaulin (1) by a plurality of tarpaulin clamps (7) arranged above the tarpaulin (1), and the hanging hole (11) is arranged on the tarpaulin clamps (7).

5. The truck tarpaulin structure according to any one of claims 1 to 4, characterized in that: The arc-shaped support (2) is formed by elastic bending of an elastic member, and one end of the arc-shaped support (2) is provided with a drawstring (3) whose one end is connected to the other end of the arc-shaped support (2).

6. The truck tarpaulin structure according to claim 5, characterized in that: The arc-shaped support (2) is a glass fiber rod.

7. The truck tarpaulin structure according to claim 5, characterized in that: The pull rope (3) is detachably connected to both ends of the arc-shaped support (2).

8. The truck tarpaulin structure according to claim 7, characterized in that: The pull rope (3) is connected to both ends of the arc-shaped support (2) via hooks (31).

9. The truck tarpaulin structure according to claim 1, wherein: The canopy driving mechanism comprises a motor (91), a winch (92) and a canopy rope (93), wherein one end of the canopy rope (93) is connected to the door frame (8) and the other end is wound around the winch (92), and the motor (91) is in driving connection with the winch (92); The awning folding driving mechanism (94) is a tension spring.

10. The truck tarpaulin structure according to claim 1, wherein: A tightening rope (6) is passed through the edge of the tarpaulin (1).

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