CN214647898U - Tarpaulin covering device - Google Patents

Abstract

The utility model discloses a tarpaulin covering device, including the support frame to and set up in the support frame and span the covering of support frame, the covering has first covering portion and second covering portion, and first covering portion and second covering portion rotate through the pivot to be connected, tarpaulin covering device still includes drive unit, and drive unit can drive the pivot and remove along the horizontal direction, so that second covering portion moves along the support frame orientation near first covering portion and the direction of keeping away from first covering portion, in order to open or to seal the top of support frame. When the second covering part moves to the position far away from the first covering part, the whole covering part is pulled away to cover the top end of the support frame, and goods in the carriage are shielded. Therefore, the loading and unloading of the goods are facilitated, and the goods with large volume can be conveniently loaded or unloaded.

Description

Tarpaulin covering device

Technical Field

The utility model belongs to the technical field of cover device, concretely relates to tarpaulin covering device.

Background

In order to prevent the goods from being blown up by wind and dust from entering the air to pollute the environment or to protect the goods, tarpaulins are generally used to cover the goods during the storage and transportation of the goods. Because the manpower is covered and is wasted time and energy, and when covering the goods in the boxcar, need the staff to climb up the carriage, this has undoubtedly aggravated staff's work burden again. Therefore, tarpaulin covering apparatuses capable of automatically covering tarpaulins on goods have appeared in the market instead of the manual covering.

The existing tarpaulin covering device is usually provided with a support in a boxcar, or the device is directly arranged at the top of the boxcar, so that the covering device covers the opening of the boxcar, when loading and unloading, the tarpaulin covering device is very inconvenient, a worker is difficult to load and unload bulky goods into the boxcar and from the boxcar, and the probability of collision between the goods and the covering device when loading and unloading the goods is increased, the covering device and the goods are easily damaged, and the use experience is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tarpaulin covering device to solve the problem that the support hinders cargo handling.

The utility model discloses the technical scheme who adopts does:

the utility model provides a tarpaulin covering device, includes the support frame, and set up in the support frame and span the covering of support frame, the covering has first covering portion and second covering portion, first covering portion with the second covering portion is rotated through the pivot and is connected, tarpaulin covering device still includes drive unit, drive unit can drive the pivot moves along the horizontal direction, so that second covering portion along the support frame is towards being close to first covering portion and keeping away from the direction motion of first covering portion, in order to open or to seal the top of support frame.

Furthermore, the driving unit comprises an expansion piece and a driving piece capable of driving the expansion piece to expand and contract, and the expansion piece expands and contracts along the length direction of the expansion piece so as to push and pull the rotating shaft to move.

Furthermore, one end of the telescopic part is provided with a first supporting part and a second supporting part, the first supporting part and the second supporting part are hinged, the first supporting part is connected to the first covering part, the second supporting part is connected to the second covering part, and the telescopic part pushes and pulls the first supporting part and the second supporting part to rotate around the rotating shaft.

Further, the extensible member include the screw rod and with screw rod complex connecting rod, first supporting part with the second supporting part set up in the connecting rod, the driving piece set up in first cover portion, the screw rod pass through the universal joint with the driving piece is connected.

Further, the first covering part comprises a first cross beam crossing the support frame and a first connecting rod hinged with the first cross beam, the second covering part comprises a second cross beam crossing the support frame and a second connecting rod hinged with the second cross beam, and the first connecting rod and the second connecting rod are rotatably connected; when the second covering part moves, the second cross beam is kept parallel to the first cross beam.

Furthermore, a guide groove is formed in one side, facing the covering part, of the support frame, guide pieces are arranged at two ends of the second cross beam and located in the guide groove, and the guide pieces move along the guide groove.

Furthermore, one side of the supporting frame, which faces the covering part, is provided with a chain, the second cross beam is provided with a moving pulley matched with the chain along the moving direction of the second cross beam, and the moving pulley moves along the chain.

Furthermore, the second cross beam is also provided with limiting pulleys, the limiting pulleys are arranged on two sides of the movable pulley, and the limiting pulleys act on two sides of the chain.

Furthermore, the tarpaulin covering device further comprises an adjusting device, the adjusting device is arranged on the second cross beam, and the adjusting device can adjust the position of the guide piece according to the movement of the support frame, so that the guide piece is kept matched with the guide groove.

Further, the cover is movable along the support bracket to one side of the support bracket.

Since the technical scheme is used, the utility model discloses the beneficial effect who gains does:

1. the driving unit of the utility model can drive the second covering part to move along the supporting frame, when the second covering part moves to the position near the first covering part, the top end of the supporting frame forms an opening with a larger area, which is convenient for workers to load and unload goods, and the goods are loaded into or unloaded from the carriage from the opening at the top of the supporting frame; when the second covering part moves to a position far away from the first covering part, the covering part is pulled away to cover the top end of the support frame, the top end of the support frame is sealed, and goods in a carriage are shielded. Therefore, the loading and unloading of goods are facilitated, the goods with large size can be conveniently loaded or unloaded, a large space is reserved at the top of the support frame, and the loading and unloading of the goods can be completed in cooperation with hoisting equipment and the like.

In addition, the rotating shaft moves along the horizontal direction, so that when the covering parts are contracted, the vertical size of the covering parts is small, and therefore the truck can be loaded or unloaded in a narrow space, and the device is suitable for various occasions.

2. As a preferred embodiment of the present invention, the driving unit includes an expansion piece, and can drive the driving piece that the expansion piece stretches out and draws back, the expansion piece stretches out and draws back along self length direction to push and pull the pivot is removed and is rotated. The telescopic piece is pushed and pulled to drive the rotating shaft to move, so that the rotating shaft is operated more labor-saving, the rotating shaft can be rotated more effectively, the telescopic piece can support and limit the rotating shaft, and the first covering part and the second covering part are prevented from rotating randomly.

3. As a preferred embodiment of the present invention, the second covering portion includes a second beam that spans the support frame, the support frame faces one side of the covering member is provided with a chain, the second beam has a moving pulley that cooperates with the chain along its own moving direction, the moving pulley is along the chain moves. Through the cooperation of removal pulley with the chain, the removal pulley is in roll on the chain, reduced the second crossbeam with the frictional resistance between the support frame, improved the removal efficiency of second crossbeam has shortened the moving time of second crossbeam.

4. As a preferred embodiment of the present invention, the supporting frame is oriented the guide way has been seted up to one side of covering, the both ends of second crossbeam are provided with the guide, the guide is located in the guide way, tarpaulin covering device still includes adjusting device, adjusting device have with support frame fixed connection's fixed part, and with fixed part complex regulating part, the regulating part can adjust the position of guide, so that the guide with the guide way keeps the cooperation. Adjusting device's setting for when the carriage received the extrusion of goods and takes place deformation, the regulating part can be according to the removal of support frame and adjustment the position of guide makes the guide way with the guide keeps effectual cooperation, avoids the guide way with the guide breaks away from the cooperation, leads to the unable removal of second cover portion.

5. As a preferred embodiment of the present invention, the covering member can move along the supporting frame to one side of the supporting frame. When goods are loaded and unloaded, the covering piece can be integrally moved to one side of the supporting frame, so that the top end of the carriage is completely opened, on one hand, the goods are conveniently loaded and unloaded, on the other hand, the goods can be avoided by the covering piece, and the damage to the covering piece or the goods caused by collision between the goods or hoisting equipment and the covering piece is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the application and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the tarpaulin covering apparatus according to an embodiment of the present invention, wherein the covering member is in a supporting state;

fig. 2 is a schematic structural view of the tarpaulin cover apparatus according to another embodiment of the present invention, wherein the cover is in a contracted state;

FIG. 3 is an enlarged view of area A of FIG. 1;

FIG. 4 is a schematic view of the cover and the support bracket;

fig. 5 is a schematic structural view of the tarpaulin covering apparatus according to still another embodiment of the present invention;

FIG. 6 is an enlarged view of area B of FIG. 1;

FIG. 7 is an enlarged view of area C of FIG. 1;

fig. 8 is an enlarged view of region D in fig. 5.

Wherein:

1, supporting a frame; 11, a chain; 12 a guide groove;

2 a covering part; 21 a first cover portion; 211 a first beam; 2111 a skateboard; 212 a first link; 22 a second cover portion; 221 a second beam; 2211 a guide; 222 a second link; 2221 a chute;

3, rotating a shaft;

4 a drive unit; 41 a driving member; 42 a telescoping member; 421 a screw rod; 422 connecting rods; 423 a first support part; 424 a second support part; 4241 a locating piece; 425 a driving rod; 43 universal joints;

5 moving the pulley;

6, limiting a pulley;

7, an adjusting device; 71 adjusting a rod; 72 slide block.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "top", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "implementation," "embodiment," "some embodiments," "example" or "specific example" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1 to 8, a tarpaulin covering device comprises a support frame 1, and a cover 2 disposed on the support frame 1 and crossing the support frame 1, wherein the cover 2 has a first cover portion 21 and a second cover portion 22, the first cover portion 21 and the second cover portion 22 are rotatably connected by a rotating shaft 3, the tarpaulin covering device further comprises a driving unit 4, and the driving unit 4 can drive the rotating shaft 3 to move along a horizontal direction, so that the second cover portion 22 moves along the support frame 1 towards a direction close to the first cover portion 21 and away from the first cover portion 21, so as to open or close the top end of the support frame 1.

When the cargo loading and unloading operation is carried out, a worker can start the driving unit 4, the driving unit 4 drives the rotating shaft 3 to move along the horizontal direction, so that the included angle between the first covering part 21 and the second covering part 22 relative to the rotating shaft 3 is reduced, the second covering part 22 moves towards the direction close to the first covering part 21 and finally moves to the position adjacent to the first covering part 21, the covering part 2 is switched to the contraction state, at the moment, the top end of the support frame 1 is provided with an opening with a large area, the worker can conveniently carry out cargo loading and unloading operation through the opening, the covering part 2 avoids cargos, the cargos with large volume can be smoothly loaded into or unloaded from the carriage, and the phenomenon that the covering part 2 collides with the cargos to cause damage is avoided.

Meanwhile, because the top end of the support frame 1 is provided with the opening with a larger area, hoisting equipment such as a crane and the like can be conveniently utilized to be matched with a truck for loading and unloading goods, and a hook cable of the crane can enter a carriage through the opening for hoisting the goods.

In addition, the rotating shaft 3 moves in the horizontal direction, so that when the covering part 2 is contracted, the vertical size of the covering part is small, and therefore the truck can expand or contract the covering part 2 in a narrow space to load or unload goods, and the awning cloth covering device is suitable for various occasions and improves the applicability of the awning cloth covering device.

After the goods are loaded or unloaded, the worker can control the driving unit 4 to drive the rotating shaft 3 to move in the opposite direction, so that the included angle between the first covering part 21 and the second covering part 22 relative to the rotating shaft 3 is increased, the second covering part 22 moves towards the direction far away from the first covering part 21, finally, the included angle between the first covering part 21 and the second covering part 22 relative to the rotating shaft 3 is about 180 degrees, at the moment, the covering part 2 is switched to the supporting state and covers the top end of the supporting frame 1, the top end of the supporting frame 1 is sealed, and the goods in the carriage are shielded.

Further, the covering part 2 is further provided with a tarpaulin assembly, when the covering part 2 is in the supporting state, the tarpaulin assembly covers tarpaulin on the periphery of the covering part 2 and the supporting frame 1, and covering of goods is completed.

Preferably, the tarpaulin assembly comprises a tarpaulin reel wound with tarpaulin, the tarpaulin covering device further comprises a tarpaulin tightening device, the tarpaulin tightening device comprises a first tarpaulin tightening piece arranged below the support frame 1, the tarpaulin reel carries the tarpaulin to rotate to the position below the support frame 1 and is matched with the first tarpaulin tightening piece to complete covering and tightening of the tarpaulin.

As a specific example, the first cloth fastening piece is in a hook-shaped structure, and when the tarpaulin reel rolls below the support frame 1, the tarpaulin reel is automatically wound into a hook groove of the first cloth fastening piece to complete the tightening of the tarpaulin.

Furthermore, the cloth tightening device further comprises a second cloth tightening piece arranged on one side of the covering piece 2, and the second cloth tightening piece is used for tightening the tarpaulin on the top of the support frame 1 to prevent the tarpaulin from collapsing.

As a specific example, the second cloth tightening member is a cloth tightening rod which is rotatable in a direction perpendicular to a rolling direction of the tarpaulin reel so that the tarpaulin is wound around the cloth tightening rod at a side perpendicular to a spreading direction to tighten the tarpaulin at the top of the support frame 1.

As a preferred embodiment of the present invention, as shown in fig. 1-2 and 5, the driving unit 4 includes an expansion member 42 and a driving member 41 capable of driving the expansion member 42 to expand and contract, and the expansion member 42 expands and contracts along its length direction to push and pull the rotating shaft 3 to move and rotate.

The rotating shaft 3 is driven to move by pushing and pulling the telescopic piece 42, so that the operation on the rotating shaft 3 is more convenient and labor-saving, when the telescopic piece 42 is extended, the rotating shaft 3 is pushed to move towards the direction away from the telescopic piece 42, so that the first covering part 21 and the second covering part 22 are pulled to rotate around the rotating shaft 3, the second covering part 22 is close to the first covering part 21, when the telescopic piece 42 is contracted, the rotating shaft 3 is pulled to move towards the direction close to the telescopic piece 42, and the second covering part 22 is further away from the first covering part 21. And adopt flexible structure can make when expansion piece 42 contracts expansion piece 42's whole length is shorter, has reduced the space that expansion piece 42 occupy avoids taking place to interfere with goods or carriage.

The utility model discloses right the flexible mode of extensible member 42 does not specifically limit, as preferred, as shown in fig. 1-2, fig. 5, fig. 7, extensible member 42 stretches out and draws back through screw and nut complex mode, not only makes the extension and the shrink process of extensible member 42 are gentler, and in flexible completion back, the screw rod with the auto-lock can also be realized to the nut, in order to prevent pivot 3 moves at will, and need not to set up extra locking structure, simplifies the structure, reduce cost. Of course, the extendable member 42 may be extended or retracted by hydraulic extension or the like.

It should be noted that the present invention is not limited to the structure of the telescopic member 42, and it may be one of the following embodiments:

example 1: in this embodiment, one end of the telescopic member 42 is connected to the driving member 41, and the other end is connected to the rotating shaft 3, when the telescopic member 42 extends, the telescopic member 42 abuts against the rotating shaft 3, so as to push the rotating shaft 3 to move in a direction away from the telescopic member 42, and further push the second covering part 22 to move in a direction close to the first covering part 21. When the extensible member 42 is shortened, the extensible member 42 pulls the rotating shaft 3 to move in a direction approaching the extensible member 42, and further pulls the second covering part 22 to move in a direction away from the first covering part 21.

Example 2: in this embodiment, as shown in fig. 1-2 and 5, one end of the extensible member 42 has a first supporting portion 423 and a second supporting portion 424, the first supporting portion 423 and the second supporting portion 424 are hinged, the first supporting portion 423 is connected to the first covering portion 21, the second supporting portion 424 is connected to the second covering portion 22, and the extensible member 42 pushes and pulls the first supporting portion 423 and the second supporting portion 424 to rotate around the hinge shaft.

Preferably, as shown in fig. 1-2, the first covering portion 21 includes a first connecting rod 212, the second covering portion 22 includes a second connecting rod 222, the first connecting rod 212 and the second connecting rod 222 are rotatably connected by the rotating shaft 3, and the telescopic member 42 acts on the first connecting rod 212 and the second connecting rod 222 to facilitate transmission of the pushing force, so as to avoid that the pushing force directly acts on the rotating shaft 3, which results in damage and failure of the rotating shaft 3.

Further, as shown in fig. 1 and 6, the second link 222 is provided with a sliding slot 2221, one end of the second support portion 424 is provided with a positioning element 4241, the positioning element 4241 is located in the sliding slot 2221 and moves along the sliding slot 2221, when the second link 222 rotates, the postures of the second link 222 and the second support portion 424 constantly change, so that the connection position between the second support portion 424 and the second link 222 changes, and the positioning element 4241 and the sliding slot 2221 are arranged to enable the second support portion 424 and the second link 222 to be still in a connection state when the second support portion 424 and the second link 222 rotate, and limit the movement of the second link 222 and the second support portion 424, so that the second link 222 and the second support portion 424 can only move in an ideal direction.

Further, as shown in fig. 1-2 and 7, the telescopic member 42 includes a screw 421 and a connecting rod 422 engaged with the screw 421, the first supporting portion 423 and the second supporting portion 424 are disposed on the connecting rod 422, the driving member 41 is disposed on the first covering portion 21, and the screw 421 is connected to the driving member 41 through a universal joint 43.

The universal joint 43 is arranged to enable the driving shaft of the driving piece 41 to be arranged coaxially with the telescopic rod 42, so that the driving piece 41 can be arranged on the first covering portion 21, the overall size of the tarpaulin covering device is reduced, the driving piece 41 can be prevented from being exposed outside the tarpaulin covering device, the view of a driver when the driver drives a truck is influenced, and the driving piece 41 is damaged due to collision with a foreign object.

Preferably, as shown in fig. 1-2, the driving member 41 is a motor, and the driving member 41 may also use other transmission methods, such as hydraulic transmission, pneumatic transmission, etc., to transmit the telescopic member 42.

As a preferred embodiment of the present invention, as shown in fig. 1 to 8, the first covering portion 21 includes a first beam 211 crossing the supporting frame 1, and a first connecting rod 212 hinged to the first beam 211, the second covering portion 22 includes a second beam 221 crossing the supporting frame 1, and a second connecting rod 222 hinged to the second beam 221, and the first connecting rod 212 and the second connecting rod 222 are rotatably connected; when the second cover portion 22 moves, the second cross member 221 is kept parallel to the first cross member 211.

When the second covering portion 22 moves, the second connecting rod 222 rotates relative to the first connecting rod 212, and the two ends of the second cross beam 221 are always in contact with the two ends of the support frame 1 and move along the support frame 1, so that the second cross beam 221 moves more stably, and the second cross beam is prevented from shaking greatly.

Preferably, as shown in fig. 1-2 and 5, the first beam 211 is hinged to a plurality of first links 212, the second beam 221 is provided with second links 222 corresponding to the first links 212 in a one-to-one manner, one end of the telescopic member 42 is provided with a first supporting portion 423 and a second supporting portion 424 hinged to each other, and a transmission rod 425 is provided at the hinged position of the first supporting portion 423 and the second supporting portion 424, so as to transmit the push-pull force generated by the telescopic member 42 in a telescopic manner to each of the first supporting portion 423 and the second supporting portion 424, so that the movement of the second beam 221 is more labor-saving and smooth.

The first link 212 and the second link 222 may be arranged in two groups as shown in fig. 1-2, or may be arranged in one or more groups as needed, and are not limited in this respect.

As a preferred example of the present embodiment, as shown in fig. 1 and 3-4, a guide groove 12 is opened on one side of the supporting frame 1 facing the covering member 2, guides 2211 are provided on both ends of the second beam 221, and the guides 2211 are located in the guide groove 12 and move along the guide groove 12.

The guide groove 12 serves as a guide limit for the movement of the guide 2211, so that the guide 2211 is guided to move, and the guide 2211 is prevented from deviating from the guide groove 12, so that the second beam 221 is kept stable during the movement.

Preferably, as shown in fig. 3, the guide 2211 has a wheel-like structure, and the guide 2211 rolls in the guide groove 12, so that the frictional resistance between the guide 2211 and the guide groove 12 is reduced, and the moving efficiency of the second beam 221 is improved.

As a preferred example of the present embodiment, as shown in fig. 1 and 3, a chain 11 is provided on a side of the support frame 1 facing the cover 2, the second beam 221 has a moving pulley 5 engaged with the chain 11 in a moving direction thereof, and the moving pulley 5 moves along the chain 11.

The chain 11 with the cooperation of removing the pulley 5 has further promoted the removal of second crossbeam 221, reduced second crossbeam 221 with frictional resistance between the support frame 1, it is more convenient, laborsaving to remove, and has avoided second crossbeam 221 with take place wearing and tearing between the support frame 1.

Preferably, the first beam 211 is also provided with the moving pulley to facilitate the overall movement of the covering element and reduce the resistance to the movement of the covering element 2.

As a specific example of the present embodiment, as shown in fig. 4, the cover 2 can move along the support frame 1 to one side of the support frame 1, a sliding plate 2111 is provided on one side of the first beam 211 facing the second beam 221, the sliding plate 2111 is located above the chain 11, and when the cover 2 is in a contracted state, the moving pulley 5 is in contact with an upper end surface of the sliding plate 2111.

When the cover 2 moves between the top and the side of the support frame 1, especially when passing through the curved section where the top and the side of the support frame 1 are connected, the moving pulley 5 of the second beam 221 easily generates a large resistance with the chain 11, making it difficult for the cover 2 to move from one side of the support frame 1 to the top of the support frame 1. And the sliding plate 2111 is arranged to make the sliding plate 2111 contact with the chain 11, so that the friction force between the moving pulley 5 arranged on the second beam 221 and the chain 11 is reduced, and the covering element 2 can conveniently move on the supporting frame 1.

Further, as shown in fig. 3, the second beam 221 further has a limiting pulley 6, the limiting pulley 6 is disposed on both sides of the moving pulley 5, and the limiting pulley 6 acts on both sides of the chain 11.

The limiting pulley 6 further ensures that the movable pulley 5 is effectively matched with the chain 11, so that the movable pulley 5 always runs along the chain 11, and the movable pulley 5 is prevented from shifting to the two sides of the chain 11, and further the second cross beam 221 and the support frame 1 are shifted.

Of course, the limiting pulley 6 may also have other structures, such as a limiting block, as long as the supporting frame 1 can be clamped, so that the moving pulley 5 always travels along the chain 11, which is not specifically limited herein.

As a preferred example of the present embodiment, the tarpaulin covering apparatus further comprises an adjusting apparatus 7, wherein the adjusting apparatus 7 is provided to the second beam 221, and the adjusting apparatus 7 can adjust the position of the guide 2211 according to the movement of the support frame 1 so that the guide 2211 is kept engaged with the guide groove 12.

When goods are loaded in the carriage, the goods are extruded by the support frame 1 to deform the support frame 1 due to the fact that the weight of the goods is large, the positions of the guide piece 2211 and the guide groove 12 are deviated, the guide groove 12 cannot be normally matched with the guide piece 2211, the second cross beam 221 cannot normally move, the adjusting device 7 can adjust the position of the guide piece 2211 in real time according to the position of the guide groove 12, the guide piece 2211 is enabled to be always located in the guide groove 12 and effectively matched with the guide groove 12, and the second cross beam 221 can normally move.

Preferably, as shown in fig. 8, the adjusting device 7 includes an adjusting rod 71 fixedly connected to the second beam 221, and a slider 72 movable along the adjusting rod 71, and the slider 72 is linked with the supporting frame 1. For example, when the supporting frame 1 deforms in a direction perpendicular to the moving direction of the second cross beam 221, the supporting frame 1 moves in a direction approaching or separating from the second cross beam 221, the slider 72 moves accordingly, and the moving distance of the slider 72 along the adjusting rod 71 is the same as the moving distance of the supporting frame 1, so that the relative position of the guide 2211 and the guide groove 12 is kept unchanged, and the transmission efficiency is ensured.

Of course, the adjusting device 7 may have other structures as long as it can maintain the effective fit between the guide 2211 and the guide groove 12, and is not particularly limited herein.

Further, the adjusting devices 7 are disposed on both the first cross beam 211 and the second cross beam 221, so as to achieve synchronous adjustment of the first cross beam 211 and the second cross beam 221.

As a preferred embodiment of the present invention, the covering member 2 can move along the supporting frame 1 to one side of the supporting frame 1.

When loading and unloading goods, the covering part 2 can be integrally moved to one side of the supporting frame 1, so that the top end of the carriage is completely opened, the top space of the carriage is maximized, on one hand, the goods can be conveniently loaded and unloaded, on the other hand, the goods can be avoided by the covering part 2, and the damage to the covering part 2 or the goods caused by collision between the goods or hoisting equipment and the covering part 2 is avoided.

Preferably, the support frame 1 comprises a support frame body and support legs, the support legs are detachably connected with the support frame body, and the support legs can stretch in the vertical direction, so that the support frame is lifted or lowered, and the loading and unloading of goods are further facilitated.

The utility model can be realized by adopting or using the prior art for reference in places which are not mentioned in the utility model.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. A tarpaulin covering device comprises a supporting frame and a covering piece which is arranged on the supporting frame and crosses the supporting frame, and is characterized in that,

the covering part is provided with a first covering part and a second covering part which are rotatably connected through a rotating shaft, and the tarpaulin covering device further comprises a driving unit which can drive the rotating shaft to move along the horizontal direction so as to enable the second covering part to move along the direction of the supporting frame, wherein the direction of the second covering part is close to the first covering part and the direction of the second covering part is far away from the first covering part, so that the top end of the supporting frame is opened or closed.

2. The tarpaulin covering device of claim 1,

the driving unit comprises an extensible part and a driving part capable of driving the extensible part to extend and retract, and the extensible part extends and retracts along the length direction of the extensible part so as to push and pull the rotating shaft to move.

3. The tarpaulin covering device of claim 2,

one end of the telescopic part is provided with a first supporting part and a second supporting part, the first supporting part and the second supporting part are hinged, the first supporting part is connected with the first covering part, the second supporting part is connected with the second covering part, and the telescopic part pushes and pulls the first supporting part and the second supporting part to rotate around the rotating shaft.

4. The tarpaulin covering device of claim 3,

the extensible member include the screw rod and with screw rod complex connecting rod, first supporting part with the second supporting part set up in the connecting rod, the driving piece set up in first cover portion, the screw rod pass through the universal joint with the driving piece is connected.

5. The tarpaulin covering device of claim 1,

the first covering part comprises a first cross beam crossing the support frame and a first connecting rod hinged with the first cross beam, the second covering part comprises a second cross beam crossing the support frame and a second connecting rod hinged with the second cross beam, and the first connecting rod and the second connecting rod are rotatably connected; when the second covering part moves, the second cross beam is kept parallel to the first cross beam.

6. The tarpaulin covering device of claim 5,

the support frame is towards one side of covering has seted up the guide way, the both ends of second crossbeam are provided with the guide, the guide is located in the guide way, and follow the guide way removes.

7. The tarpaulin covering device of claim 6,

the support frame orientation one side of covering is provided with the chain, the second crossbeam along self moving direction have with chain complex removes the pulley, remove the pulley along the chain removes.

8. The tarpaulin covering device of claim 7,

the second cross beam is also provided with limiting pulleys, the limiting pulleys are arranged on two sides of the movable pulley, and the limiting pulleys act on two sides of the chain.

9. The tarpaulin covering device of claim 6,

the tarpaulin covering device further comprises an adjusting device, the adjusting device is arranged on the second cross beam, and the adjusting device can adjust the position of the guide piece according to the movement of the supporting frame, so that the guide piece is kept matched with the guide groove.

10. The tarpaulin covering device of claim 1,

the cover is movable along the support bracket to one side of the support bracket.

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