Automatic tarpaulin covering device for large flatbed truck

Abstract

The utility model belongs to truck equipment technical field discloses a kind of automatic tarpaulin covering device for large flatbed truck, comprising: telescopic sleeve pole is installed in four near corner position of truck flatbed, its top is all connected extension rod one towards rear, its bottom is all connected extension rod two towards rear, the top of telescopic sleeve pole and the end of extension rod one are all installed guiding component;Direction-changing wheel is installed in four near corner position of truck flatbed;Winding component;Release component;Steel wire rope, the utility model moves on truck by steel wire rope, to pull tarpaulin open and lay on goods, without artificial climb on truck, only need to start winding motor and release motor, by the movement of steel wire rope, not only tarpaulin laying efficiency is higher, while avoiding the danger that worker aerial work exists.

Description

Technical Field

[0001] This utility model relates to the field of truck equipment technology, and more specifically, to an automatic tarpaulin covering device for large flatbed trucks. Background Technology

[0002] In daily freight transport operations, covering the cargo in the cargo compartment with tarpaulins is a widely adopted and routine practice. Whether a freight vehicle is performing long-distance trunk line transport or short-distance suburban freight delivery, as long as the cargo compartment is loaded with transported goods, tarpaulin covering is usually required. The core purpose of this operation is to protect the cargo and prevent damage from wind, rain, or dust during transport; it also effectively prevents cargo from falling off when the vehicle is moving, thereby reducing the traffic safety risks to other vehicles and pedestrians in the road environment.

[0003] Currently, in the freight market, the most common method for laying tarpaulins on cargo stacked on flatbed trucks is still manual. This method has the following problems: manual laying usually involves workers climbing onto the stacked cargo and working with workers below to gradually unfold the tarpaulin and lay it on the cargo. Moreover, large flatbed trucks typically have high cargo stacks, posing a high safety risk when laying tarpaulins, and the operation is time-consuming and labor-intensive. In view of this, we propose an automatic tarpaulin covering device for large flatbed trucks. Utility Model Content

[0004] 1. Technical problems to be solved The purpose of this invention is to provide an automatic tarpaulin covering device for large flatbed trucks, in order to solve the safety risks that workers face when laying tarpaulins on stacked goods, as mentioned in the background art.

[0005] 2. Technical Solution An automatic tarpaulin covering device for a large flatbed truck includes: Telescopic sleeves are installed at four corners of the truck flatbed. The telescopic sleeves can be extended and adjusted in height to accommodate the height of the cargo on the flatbed. The two telescopic sleeves located at the rear end of the truck flatbed are connected to extension rod one at the top and extension rod two at the bottom. Guide components are installed at the top of the telescopic sleeves and the end of extension rod one. The four steering wheels are installed near the corners of the truck flatbed. The two steering wheels at the front are directly installed to the front of the truck flatbed, and the two steering wheels at the rear are respectively installed to the two ends of the two extension rods. The winding assembly is installed at the front center of the truck flatbed; Release assembly, installed at the middle of the rear end of the truck flatbed; The wire rope is released by the release assembly, changes direction by the directional wheel at the rear of the truck, and then passes from back to front through multiple guide assemblies on one side of the truck flatbed. It extends downward to the directional wheel at the front of the truck and returns to the winding assembly to be wound up.

[0006] Preferably, a telescopic rod is provided on one side of the telescopic sleeve rod, the bottom end of the telescopic rod is fixed to one side of the telescopic sleeve rod by an angle plate, and the top end of the piston rod of the telescopic rod is fixedly connected to the top end of the telescopic part of the telescopic sleeve rod.

[0007] Preferably, the guide assembly includes a connector, a guide wheel, and a triangular limiting plate. The connector is fixedly connected to the end of the telescopic sleeve or extension rod. The guide wheel is installed through a rotating shaft at the hollow part of the connector. A triangular limiting plate is provided on one side of the guide wheel. The guide wheel and the triangular limiting plate rotate coaxially.

[0008] Preferably, the winding assembly includes a winding motor, a winding reel one, and a winding reel two. The winding motor is installed in the middle of the front end of the truck flatbed. The winding motor is connected to winding reel one and winding reel two via a reducer so that the two rotate synchronously. The two steel wire ropes enter from above and below respectively and are wound around the central shaft of winding reel two.

[0009] Preferably, the release assembly includes a release motor, a release reel one, and a release reel two. The release motor is installed in the middle of the rear end of the truck flatbed. The release motor is connected to release reel one and release reel two via a reducer so that the two rotate synchronously. Two steel wire ropes wound on release reel one and release reel two respectively release downwards and upwards.

[0010] Preferably, the reinforcing component includes a bracing plate, a positioning groove, and a limiting rod. The upper end of the bracing plate has a positioning groove, and the lower end of the bracing plate is connected to the limiting rod.

[0011] Preferably, a rotatable support crossbar is installed between the two extension rods.

[0012] Preferably, the steel wire rope has several pull rings evenly distributed along the steel wire rope at a position above the rear half of the truck flatbed. The pull rings are connected to hooks on the truck tarpaulin. The pull rings are connected to a secondary steel wire rope by clamps, and the other end of the secondary steel wire rope is fixed to the steel wire rope by clamps.

[0013] Preferably, the bottom of the telescopic sleeve is provided with a telescopic component to adjust the distance between the telescopic sleeve and the truck flatbed. The telescopic component includes a sleeve fixedly installed at the bottom of the truck flatbed, and a slidable telescopic inner rod is sleeved inside the sleeve.

[0014] 3. Beneficial effects Compared with existing technologies, the advantages of this utility model are: 1. This utility model uses the movement of a steel wire rope on a truck to pull the tarpaulin open and lay it on the cargo. Compared with the traditional manual laying method, there is no need for people to climb onto the truck. It only requires starting the winding motor and releasing motor, and the movement of the steel wire rope is sufficient. Not only is the tarpaulin laying efficiency higher, but it also avoids the danger of workers working at height.

[0015] 2. This utility model, through the cooperation of the telescopic sleeve rod and the telescopic component, can adjust the position of the telescopic inner rod inside the sleeve to adapt to the width of the cargo accumulated on the truck flatbed. At the same time, by adjusting the output height of the telescopic rod, the height of the telescopic sleeve rod can be adjusted to adapt to the height of the cargo accumulated on different truck flatbeds. 3. The guide component of this utility model is designed with a triangular limiting plate on the inner side of the guide wheel. This can prevent the steel wire rope from detaching from the guide wheel due to the tension when pulling the tarpaulin. In addition, when the steel wire rope and the auxiliary steel wire rope are connected to the tibia guide wheel, the triangular limiting plate will rotate. Therefore, the triangular limiting plate will not affect the normal movement of the steel wire rope. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of a portion of the structure of this utility model from a first-view perspective; Figure 3 This is a schematic diagram of a portion of the structure of this utility model from a second perspective. Figure 4 The present invention includes a guide assembly, a secondary steel wire rope, and a pull ring; and a schematic diagram. Figure 5 This is a schematic diagram of the telescopic rod and reinforcing component of this utility model; Figure 6 This is a schematic diagram of the first configuration of the winding assembly and the release assembly of this utility model. Figure 7 This is a schematic diagram of a second configuration of the winding assembly and the release assembly of this utility model. Explanation of the labels in the diagram: 1. Truck flatbed; 2. Telescopic sleeve; 3. Telescopic pole; 4. Extension rod one; 5. Extension rod two; 6. Guiding components; 61. Connector; 62. Guide wheel; 63. Triangular limiting plate; 7. Steering wheel; 8. Steel wire rope; 9. Rewinding assembly; 91. Rewinding motor; 92. Rewinding reel one; 93. Rewinding reel two; 10. Release the component; 101. Release the motor; 102. Release reel one; 103. Release reel two; 11. Strengthen components; 111. Diagonal brace; 112. Positioning groove; 113. Limiting rod; 12. Supporting crossbars; 13. Secondary wire rope; 14. Pull ring; 15. Telescopic components; 151. Sleeve; 152. Telescopic inner rod. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figure 1-7 This utility model provides an automatic tarpaulin covering device for large flatbed trucks, including: telescopic sleeve 2, extension rod one 4, extension rod two 5, guide assembly 6, directional wheel 7, wire rope 8, winding assembly 9, and release assembly 10. The telescopic sleeve 2 is set to four, and the four telescopic sleeve 2 are installed at the four corners of the truck flatbed. Two of them are located at the front of the truck flatbed and the other two are located at the rear of the truck flatbed. The telescopic sleeve 2 adopts the telescopic sleeve structure to realize telescopic adjustment, thereby adjusting to a suitable height to accommodate the goods on the flatbed. Two telescopic rods 2 are located at the rear end of the truck flatbed. Each telescopic rod 2 has a telescopic rod 3 on one side. The bottom end of the telescopic rod 3 is fixed to one side of the telescopic rod 2 by a corner plate. The top of the piston rod of the telescopic rod 3 is fixedly connected to the top of the telescopic part of the telescopic rod 2. The top of the telescopic rod 2 is connected to the extension rod 1 4 facing backward. A rotatable support crossbar 12 is installed between the two extension rods 1 4 to support the tarpaulin. At the same time, the rotatable support crossbar 12 will not affect the movement of the tarpaulin. The bottom of the extension rods 1 4 and 2 5 facing backward are connected to the extension rod 2 5. The extension rods 1 4 and 2 5 on the same side are in the same vertical plane. Guide components 6 are installed on the top of the telescopic rod 2 and the end of the extension rod 1 4 to facilitate the movement of the wire rope 8. In addition, the four directional wheels 7 are installed near the corners of the truck flatbed, and the two directional wheels 7 at the front are directly installed at the front of the truck flatbed, as shown in the attached figure. Figure 2 As shown, the two rear-mounted steering wheels 7 are respectively installed at the ends of the two extension rods 5, as per the attached diagram. Figure 2 As shown, the steel wire rope 8 is moved by changing direction through four front and rear directional wheels 7; The winding assembly 9 is installed at the front center of the truck flatbed and is used to wind up the wire rope 8; Release assembly 10 is installed at the middle of the rear end of the truck flatbed for releasing wire rope 8; The wire rope 8 is released by the release assembly 10. The two wire ropes 8 are reversed by the rear deflector 7 of the truck and are directed toward the two sides of the truck respectively. Taking one side as an example, after the wire rope 8 is reversed by the deflector 7, it passes through the three guide assemblies 6 on one side of the truck flatbed in sequence from back to front and extends to the front of the truck flatbed. The wire rope 8 continues to extend downward to the deflector 7 at the front of the truck and is reversed, and finally returns to the winding assembly 9 to be wound up. The tarpaulin is positioned between two steel wire ropes 8, and the hooks on both sides of the front end of the tarpaulin are attached to the steel wire ropes 8 on both sides. As the steel wire ropes 8 are released from the release component 10 and move forward until they are wound up by the winding component 9, the steel wire ropes 8 move forward continuously from the rear of the vehicle, thereby driving the tarpaulin to move continuously from back to front, thus covering the outside of the goods, until the front end of the tarpaulin moves to the front of the truck, completing the overall tarpaulin covering operation.

[0021] Please refer to the instruction manual attached. Figure 4The guide component 6 in this embodiment will be described in detail. The guide component 6 includes a connector 61, a guide wheel 62, and a triangular limiting plate 63. In this embodiment, there are a total of six connectors 61. Two connectors 61 are fixed to two extension rods 4 respectively, and the other four connectors 61 are connected to the top ends of four telescopic sleeve rods 2 respectively. The guide wheel 62 is installed in the hollow part of the connector 61 through a rotating shaft. A triangular limiting plate 63 is provided on one side of the guide wheel 62. The guide wheel 62 and the triangular limiting plate 63 rotate coaxially. The wire rope 8 slides in the groove of the guide wheel 62 to reduce friction. When the guide wheel 62 rotates, it drives the triangular limiting plate 63 to rotate.

[0022] It is worth mentioning that the winding assembly 9 includes a winding motor 91, a winding reel 1 92, and a winding reel 2 93. The winding motor 91 is installed in the middle of the front end of the truck flatbed. The winding motor 91 is connected to the winding reel 1 92 and the winding reel 2 93 via a reducer, so that the winding reel 1 92 and the winding reel 2 93 rotate synchronously. Two steel wire ropes 8 enter from the top and bottom respectively and are wound around the central shaft of the winding reel 2 93. Similarly, the release assembly 10 includes a release motor 101, a release reel one 102, and a release reel two 103. The release motor 101 is installed in the middle of the rear end of the truck flatbed. The release motor 101 is installed at the rear end of the truck bed through a sliding rail pull-out structure. When in use, the release motor 101 is pulled out and when not in use, it is retracted without affecting the normal use of the rear end of the vehicle. The sliding rail pull-out structure is existing technology and will not be described in detail here. The release motor 101 is connected to the release reel one 102 and the release reel two 103 through a reducer so that the two rotate synchronously. The two steel wire ropes 8 wound on the release reel one 102 and the release reel two 103 respectively release downward and upward.

[0023] Examples of the winding component 9 and the releasing component 10 are illustrated below: Example 1: Please refer to the appendix Figure 6 The wire rope 8 enters from the left side below the first winding reel 92 and is wound counterclockwise on the first winding reel 92. The wire rope 8 on the other side enters from the right side above the second winding reel 93 and is wound counterclockwise on the second winding reel 93. When the first winding reel 92 and the second winding reel 93 rotate counterclockwise synchronously, the wire ropes 8 on both sides are wound on the first winding reel 92 and the second winding reel 93 respectively. At this time, the steel wire rope 8 on the left is wound counterclockwise on the release reel 102, and extends from the top of the release reel 102 to the left and finally is wound on the take-up reel 92. The steel wire rope 8 on the other side is wound counterclockwise on the release reel 203, and extends from the bottom of the release reel 203 to the right and finally is wound on the take-up reel 203. When the release reel 102 and the release reel 203 rotate counterclockwise synchronously, the steel wire ropes 8 on both sides are released from the release reel 102 and the release reel 203 respectively.

[0024] Example 2: Please refer to the appendix. Figure 7 The wire rope 8 enters from the left side above the first winding reel 92 and is wound clockwise on the first winding reel 92. The wire rope 8 on the other side enters from the right side below the second winding reel 93 and is wound clockwise on the second winding reel 93. When the first winding reel 92 and the second winding reel 93 rotate clockwise simultaneously, the wire ropes 8 on both sides are wound on the first winding reel 92 and the second winding reel 93 respectively. At this time, the wire rope 8 on the left is wound clockwise on the release reel 102, and extends from the bottom of the release reel 102 to the left and is finally wound onto the take-up reel 92. The wire rope 8 on the other side is wound clockwise on the release reel 203, and extends from the top of the release reel 203 to the right and is finally wound onto the take-up reel 203. When the release reel 102 and the release reel 203 rotate clockwise synchronously, the wire ropes 8 on both sides are released from the release reel 102 and the release reel 203 respectively.

[0025] Please refer to the instruction manual attached. Figure 5 In this embodiment, the reinforcing component 11 includes a diagonal brace 111, a positioning groove 112, and a limiting rod 113. The upper end of the diagonal brace 111 has a positioning groove 112, and the lower end of the diagonal brace 111 is connected to the limiting rod 113. The telescopic rod 3 is installed with a limiting pin at the position corresponding to the positioning groove 112. The limiting pin is inserted into the positioning groove 112 to fix the upper end of the diagonal brace 111. The truck flatbed is provided with a limiting groove at the position corresponding to the limiting rod 113. The limiting rod 113 is inserted into the limiting groove to fix the lower end of the diagonal brace 111.

[0026] Please refer to the instruction manual attached. Figure 4 In this embodiment, the steel wire rope 8 is located above the rear half of the truck flatbed, and several pull rings 14 are evenly distributed along the steel wire rope 8. The other end of the auxiliary steel wire rope 13 is fixed to the steel wire rope 8 by a clamp. The multiple pull rings 14 can be connected to multiple hooks on the tarpaulin to enhance the connection effect. At the same time, the front end of the tarpaulin can be straightened and spread out so that the tarpaulin can move towards the front of the truck along with the steel wire rope 8 and be spread out on the truck. In addition, please continue to refer to the appendix to the instruction manual. Figure 4Since the tarpaulin is located between the two steel wire ropes 8, and the tarpaulin itself is quite heavy, under its own weight, the hooks on the tarpaulin will exert a pulling force on the pull ring 14 towards the inside of the truck. The pulling force is transmitted to the steel wire rope 8 through the auxiliary steel wire rope 13. The multiple hooks cause the steel wire rope 8 to deform to a certain extent towards the inside of the truck. The triangular limiting plate 63 set inside the guide wheel 62 prevents the steel wire rope 8 from being dislodged from the triangular limiting plate 63 under force. In addition, when the tarpaulin moves towards the front of the truck with the steel wire rope 8, the connection between the steel wire rope 8 and the auxiliary steel wire rope 13 will drive the triangular limiting plate 63 to rotate when passing the guide wheel 62. The rotation of the triangular limiting plate 63 will not affect the normal movement of the steel wire rope 8, thus not affecting the forward movement of the tarpaulin.

[0027] For further details, please refer to the instruction manual appendix. Figure 5 The following describes the outward adjustment method of the telescopic sleeve 2 in this embodiment: The bottom of the telescopic sleeve 2 is provided with a telescopic component 15 to adjust the distance between the telescopic sleeve 2 and the truck flatbed. The telescopic component 15 includes a sleeve 151 fixedly installed at the bottom of the truck flatbed. A slidable telescopic inner rod 152 is sleeved inside the sleeve 151. Several fixing holes are opened on the surface of both the sleeve 151 and the telescopic inner rod 152 for fixing.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic tarpaulin covering device for a large flatbed truck, characterized in that, include: Telescopic sleeves (2) are installed at four corners of the truck flatbed. The telescopic sleeves (2) can be telescopically adjusted to accommodate the height of the goods on the flatbed. The two telescopic sleeves (2) located at the rear end of the truck flatbed have extension rod one (4) connected to the top of each extension rod one (5) and extension rod two (5) connected to the bottom of each extension rod one (4). Guide components (6) are installed at the top of the telescopic sleeves (2) and the end of the extension rod one (4). The four directional wheels (7) are installed near the corners of the truck flatbed. The two directional wheels (7) at the front are directly installed to the front of the truck flatbed, and the two directional wheels (7) at the rear are respectively installed to the ends of the two extension rods (5). The winding assembly (9) is installed at the front center of the truck flatbed; Release component (10) is installed at the middle of the rear end of the truck flatbed; The wire rope (8) is released by the release assembly (10), changes direction by the rear directional wheel (7) of the truck, and after changing direction, passes from back to front through multiple guide assemblies (6) on one side of the truck flatbed, extends downward to the directional wheel (7) at the front of the truck, changes direction again, and returns to the winding assembly (9) to be wound up.

2. The automatic tarpaulin covering device for a large flatbed truck according to claim 1, characterized in that: A telescopic rod (3) is provided on one side of the telescopic sleeve rod (2). The bottom end of the telescopic rod (3) is fixed to one side of the telescopic sleeve rod (2) by a corner plate. The top end of the piston rod of the telescopic rod (3) is fixedly connected to the top end of the telescopic part of the telescopic sleeve rod (2).

3. The automatic tarpaulin covering device for a large flatbed truck according to claim 1, characterized in that: The guide assembly (6) includes a connector (61), a guide wheel (62), and a triangular limiting plate (63). The connector (61) is fixedly connected to the end of the telescopic sleeve (2) or the extension rod (4). The guide wheel (62) is installed in the hollow part of the connector (61) through a rotating shaft. A triangular limiting plate (63) is provided on one side of the guide wheel (62). The guide wheel (62) and the triangular limiting plate (63) rotate coaxially.

4. The automatic tarpaulin covering device for a large flatbed truck according to claim 1, characterized in that: The winding assembly (9) includes a winding motor (91), a winding reel one (92), and a winding reel two (93). The winding motor (91) is installed in the middle of the front end of the truck flatbed. The winding motor (91) is connected to the winding reel one (92) and the winding reel two (93) via a reducer so that the two rotate synchronously. The two steel wire ropes (8) enter from the top and bottom respectively and are wound around the central shaft of the winding reel two (93).

5. The automatic tarpaulin covering device for a large flatbed truck according to claim 1, characterized in that: The release assembly (10) includes a release motor (101), a release reel one (102), and a release reel two (103). The release motor (101) is installed in the middle of the rear end of the truck flatbed. The release motor (101) is connected to the release reel one (102) and the release reel two (103) via a reducer so that the two rotate synchronously. Two steel wire ropes (8) wound on the release reel one (102) and the release reel two (103) are released from below and above, respectively.

6. The automatic tarpaulin covering device for a large flatbed truck according to claim 1, characterized in that: A reinforcing assembly (11) is provided between the two telescopic sleeves (2) located at the rear of the truck and the truck for support. The reinforcing assembly (11) includes a bracing plate (111), a positioning groove (112), and a limiting rod (113). The upper end of the bracing plate (111) is provided with a positioning groove (112), and the lower end of the bracing plate (111) is connected to the limiting rod (113).

7. The automatic tarpaulin covering device for a large flatbed truck according to claim 1, characterized in that: A rotatable support crossbar (12) is installed between the two extension rods (4).

8. The automatic tarpaulin covering device for a large flatbed truck according to claim 1, characterized in that: The steel wire rope (8) is located above the rear half of the truck flatbed and has several pull rings (14) distributed at equal intervals along the steel wire rope (8). The pull rings (14) are connected to hooks on the truck tarpaulin. The pull rings (14) are connected to the auxiliary steel wire rope (13) by clamps. The other end of the auxiliary steel wire rope (13) is fixed to the steel wire rope (8) by clamps.

9. An automatic tarpaulin covering device for a large flatbed truck according to claim 1, characterized in that: The telescopic sleeve (2) is provided with a telescopic component (15) at the bottom to adjust the distance between the telescopic sleeve (2) and the truck flatbed. The telescopic component (15) includes a sleeve (151) fixedly installed at the bottom of the truck flatbed, and a slidable telescopic inner rod (152) is sleeved inside the sleeve (151).

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