Intelligent ceiling device of dump truck

Abstract

The invention relates to the technical field of intelligent roofs, in particular to an intelligent roof device of a dump truck, top frames are symmetrically erected at the head end and the tail end of the top of a truck container, two pieces of tarpaulin are symmetrically arranged on the two sides of the truck container, in the normal carrying process of the truck, the truck container is elastically tightened inwards through first pull ropes, and the tarpaulin completely covers the truck container; when the truck container is backwards overturned for unloading, the tarpaulin forms an area protective cover between the truck container and the chassis, when the area protective cover is pushed inwards, the corner end block at the rear end is driven to slide outwards until the corner end block at the rear end is sensed by the intelligent sensor, an alarm is triggered, the truck container is controlled to be kept in the original position, and when the truck container is horizontally loaded, the counterweight column is controlled to be put down; the gravity action of the balance weight columns drives all the corner end blocks to slide outwards, so that tarpaulin at the top end of the truck container is opened, a global protective cover is formed on the two sides of a truck through the falling tarpaulin, and therefore the intelligent protection and early warning effects in multiple scenes are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of intelligent canopies, and in particular to an intelligent canopy device for a dump truck. Background Art

[0002] The existing dump truck is a kind of cargo truck, and the cargo loading part has an automatic dumping function. It is composed of a chassis, a hydraulic lifting mechanism, a cargo box rotatably connected to the chassis, and other components. The cargo box is divided into two types: rearward tipping and lateral tipping. The hydraulic lifting mechanism is used to push the cargo box to tip backward or sideways, among which rearward tipping is more common. Dump trucks are usually used to carry bulk materials such as construction waste, earthwork, sand and gravel. In order to avoid dust and other pollution during transportation, a canopy device such as a tarpaulin is often covered at the top open part of the cargo box. In this regard, in the prior art, such as the Chinese patent document CN216374353U discloses a truck compartment intelligent tarpaulin The folding and unfolding device, by setting a supporting mechanism and a tarpaulin between the supporting mechanisms, the truck compartment has an intelligent tarpaulin folding and unfolding device, which can automatically fold and unfold the tarpaulin, greatly improve the transportation efficiency, and avoid pollution such as dust. However, the truck tarpaulins on the market, whether they are automatically foldable, automatically openable, and automatically liftable, can only be used to protect the top opening of the cargo box. However, considering that when the truck cargo box is overturned to unload, there is actually no protection between the cargo box and the chassis. If there are debris or people between the chassis and the raised cargo box, it is easy to cause a greater safety hazard, and it is also easy to cause damage to truck parts when the cargo box is lowered and reset. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide an intelligent canopy device for a dump truck to solve the problem that the existing dump trucks have poor intelligent protection and early warning capabilities at the position between the chassis and the raised cargo box.

[0004] Based on the above purpose, the present invention provides a smart canopy device for a dump truck, which is arranged on a cargo box, and the rear end of the cargo box is rotatably connected to the chassis of the truck:

[0005] Top frames are symmetrically arranged at the front and rear ends of the cargo box, and the length direction of the top frames is parallel to the width direction of the cargo box. Two tarpaulins are symmetrically arranged on both sides of the cargo box, and corner blocks are respectively connected to the top two corners of the tarpaulin. The corner blocks are slidably connected to the top frames and slide freely along the length direction of the top frames. A first pull rope is connected between the corner blocks and the cargo box, and the first pull rope is tightened inward to drive all the corner blocks to slide inward to cover the top opening of the cargo box.

[0006] A smart sensor is installed on the top frame at the rear end of the cargo box;

[0007] Counterweight columns are provided parallel to each other on both sides of the chassis along its length direction, and the two corners of the bottom end of the tarpaulin are respectively connected to the head and tail ends of the counterweight columns. When the cargo box is tilted backward to unload, the front end of the counterweight column pulls the tarpaulin, driving the front end corner blocks to slide outward, and forming a regional protective cover between the cargo box and the chassis through the tarpaulin. When the regional protective cover is pushed inward, the rear end corner blocks are driven to slide outward until the rear end corner blocks are sensed by the intelligent sensor, which triggers an alarm and controls the cargo box to remain in place. When the cargo box is loaded horizontally, the counterweight column is controlled to be lowered, driving all the corner end blocks to slide outward, so that the tarpaulin at the top of the cargo box is opened, and a full-area protective cover is formed on both sides of the truck through the fallen tarpaulin.

[0008] Preferably, a plurality of through holes are spaced apart on both sides of the vehicle chassis along its length direction, and a second pull rope is passed through the through holes. The second pull rope is fixedly connected to the side end of the counterweight column. The counterweight column is pulled parallel and close to the two sides of the vehicle chassis by tightening the second pull rope inward.

[0009] Preferably, a driving device is provided in the vehicle chassis for driving the counterweight column to be lowered or retracted, and the driving device is electrically connected to the intelligent sensor. When the counterweight column is retracted to a state close to the side end of the vehicle chassis by the driving device, the intelligent sensor is triggered to start working.

[0010] Preferably, wire grooves are vertically provided on both sides of the cargo box, and the wire grooves are symmetrically arranged at the front and rear ends of the cargo box to guide the two sides of the tarpaulin.

[0011] Preferably, brush racks are horizontally provided on both sides of the cargo box, the head and tail ends of the brush racks are fixed to the outside of the cargo box, and a gap is left between the brush racks and the outer wall of the cargo box for the tarpaulin to pass through.

[0012] Preferably, the inner end of the brush holder is provided with bristles, which are pressed against the outer side of the vehicle cargo box and are used for scraping the tarpaulin.

[0013] Preferably, a plurality of brush holders are arranged at intervals from top to bottom.

[0014] Preferably, the first draw cord adopts an elastic cord structure.

[0015] The beneficial effects of the present invention are as follows: a top frame is symmetrically arranged at the head and tail ends of the top of the cargo box, two tarpaulins are symmetrically arranged on both sides of the cargo box, corner blocks are respectively connected to the top two corners of the tarpaulin, the corner blocks are slidably connected to the top frame, counterweight columns are arranged in parallel on both sides of the chassis along its length direction, the bottom two corners of the tarpaulin are respectively connected to the head and tail ends of the counterweight columns, and during normal loading of the truck, the first pull rope is elastically tightened inwardly to drive all the corner blocks to slide into the car body, and the tarpaulin completely covers the top opening and outer side ends of the cargo box, and when the cargo box is tipped backward to unload, the counterweight column drives the front corner block outward Sliding, the tarpaulin forms a regional protective cover between the cargo box and the chassis. When the regional protective cover is pushed inward, it drives the corner end blocks at the rear end to slide outward until the corner end blocks at the rear end are sensed by the intelligent sensor, which triggers an alarm and controls the cargo box to remain in place. When the cargo box is loaded horizontally, the counterweight column is controlled to be lowered, and the gravity of the counterweight column drives all the corner end blocks to slide outward, so that the tarpaulin on the top of the cargo box is opened, and a full-area protective cover is formed on both sides of the truck through the fallen tarpaulin. Therefore, the tarpaulin not only plays the traditional role of covering the opening at the top of the cargo box, but also plays the role of intelligent protection and early warning in multiple scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the truck of the present invention without a tarpaulin;

[0018] Figure 2 It is a schematic diagram of the top view of the structure of the vehicle cargo box of the present invention when it is not provided with a tarpaulin;

[0019] Figure 3 This is a schematic diagram of the structure of the truck of the present invention when it is in normal transportation;

[0020] Figure 4 It is a schematic diagram of the structure of the vehicle cargo box of the present invention when it is normally transported from top to bottom;

[0021] Figure 5 It is a structural schematic diagram of the vehicle cargo box of the present invention when tipping backward to unload cargo;

[0022] Figure 6 It is a side view structural schematic diagram of the vehicle cargo box of the present invention when loading cargo horizontally;

[0023] Figure 7 It is a schematic diagram of the structure of the vehicle cargo box of the present invention when loading cargo horizontally;

[0024] Figure 8 It is a schematic diagram of the top structure of the brush holder of the present invention.

[0025] The markings in the figure are:

[0026] 1. Cargo box; 2. Chassis; 21. Perforation; 22. Second pull rope; 3. Top frame; 4. Tarpaulin; 5. Corner end block; 6. First pull rope; 7. Smart sensor; 8. Counterweight column; 9. Wire trough; 10. Brush holder; 11. Gap; 12. Bristles. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0028] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] A smart canopy device for a dump truck is provided on a cargo box 1. The rear end of the cargo box 1 is rotatably connected to the chassis 2. Top frames 3 are symmetrically arranged at the front and rear ends of the cargo box 1. The length direction of the top frame 3 is parallel to the width direction of the cargo box 1. Two tarpaulins 4 are symmetrically arranged on both sides of the cargo box 1. Corner end blocks 5 are respectively connected to the top two corners of the tarpaulin 4. The corner end blocks 5 are slidably connected to the top frame 3 and slide freely along the length direction of the top frame 3. A first pull rope 6 is connected between the corner end blocks 5 and the cargo box 1. By tightening the first pull rope 6 inwardly, all the corner end blocks 5 are driven to slide inward to cover the top opening of the cargo box 1. An intelligent sensor 7 is provided on the top frame 3 at the rear end of the cargo box 1. The two sides of the chassis 2 are along A counterweight column 8 is provided parallel to the length direction thereof, and the two corners of the bottom end of the tarpaulin 4 are respectively connected to the head and tail ends of the counterweight column 8. When the cargo box 1 is tilted backward to unload, the front end of the counterweight column 8 pulls the tarpaulin 4, driving the front end corner block 5 to slide outward, and a regional protective cover is formed between the cargo box 1 and the chassis 2 through the tarpaulin 4. When the regional protective cover is pushed inward, the rear end corner block 5 is driven to slide outward until the rear end corner block 5 is sensed by the intelligent sensor 7, triggering an alarm and controlling the cargo box 1 to remain in place. When the cargo box 1 is loaded horizontally, the counterweight column 8 is controlled to be lowered, driving all the corner end blocks 5 to slide outward, so that the tarpaulin 4 at the top of the cargo box 1 is opened, and a full-area protective cover is formed on both sides of the truck through the fallen tarpaulin 4.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the present invention is based on the basic structural principle of existing dump trucks, including a cargo box 1, the rear end of which is rotatably connected to the chassis 2, the cargo box 1 is rearward tipping type, and is pushed to tip backward by a hydraulic lifting mechanism, and a dump tailgate is provided at the rear end of the cargo box 1 for rotating and opening when unloading. Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, top frames 3 are symmetrically arranged at the head and tail ends of the top of the cargo box 1, and the length direction of the top frame 3 is parallel to the width direction of the cargo box 1. Specifically, the top frame 3 can be designed in a horizontal straight line shape, or in an upwardly protruding arch shape, etc. Two tarpaulins 4 are symmetrically arranged on both sides of the cargo box 1. The tarpaulins 4 can specifically adopt existing conventional flexible flat fabrics or mesh fabrics and are designed in a rectangular shape. Corner end blocks 5 are respectively connected to the two corners of the top of the tarpaulin 4, which is conducive to fixing the tarpaulin 4. The corner end blocks 5 are slidably connected to the top frame 3 and are slidable along the length direction of the top frame 3. The tarpaulin 4 can slide freely on the upper part, a first pull rope 6 is connected between the corner end block 5 and the cargo box 1, an intelligent sensor 7 is provided on the top frame 3 at the rear end of the cargo box 1, and counterweight columns 8 are provided in parallel on both sides of the chassis 2 along its length direction, and the two corners at the bottom end of the tarpaulin 4 are respectively connected to the head and tail ends of the counterweight columns 8, wherein the first pull rope 6 can adopt an elastic rope structure, or a rope winding mechanism on the cargo box 1, which is used to rotate and unwind the first pull rope 6, and the intelligent sensor 7 can adopt existing conventional ones such as photoelectric distance sensors, light touch sensors, etc. During normal transportation of the truck, such as Figure 3 , Figure 4 As shown, the counterweight column 8 is fixed at the two sides of the vehicle chassis 2, and the first pull rope 6 is elastically tightened inwardly, or the first pull rope 6 is driven to be rolled inwardly by a rope winding mechanism, so that all the corner end blocks 5 slide into the vehicle compartment, so that the top of the rectangular tarpaulin 4 covers the half of the top opening of the vehicle cargo box 1, and the bottom of the tarpaulin 4 covers the side end of one side outside the vehicle cargo box 1, so that the top opening of the vehicle cargo box 1 and the outer side end of the vehicle cargo box 1 are completely covered by two symmetrically arranged tarpaulins 4, as shown in FIG. Figure 5 As shown, when the cargo box 1 is tipped backward to unload, the counterweight column 8 remains in its original position, and at this time, the tarpaulin 4 is pulled by the front end of the counterweight column 8, driving the front corner block 5 to slide outward, so that the tarpaulin 4 forms a regional protective cover between the cargo box 1 and the chassis 2, which plays a certain protective role. However, considering the flexible protective effect of the tarpaulin 4, if there are still people, animals, debris, etc. against or pressing the regional protective cover, that is, when the regional protective cover is pushed inward, the rear corner block 5 is driven to slide outward until the rear corner block 5 is sensed by the intelligent sensor 7, which triggers an alarm and controls the cargo box 1 to remain in place, avoiding the safety hazard of being pinched by the descending cargo box 1 or causing damage to the truck parts. If a sensor is directly used between the cargo box 1 and the chassis 2 to detect whether there is an object extending into it, considering the long length of the truck, it is obviously necessary to arrange many sensors along the length direction of the vehicle body, and it is necessary to ensure that each sensor can maintain accurate work during long-term movement and use, which has poor practicality.

[0031] When the cargo box 1 is loaded horizontally, the counterweight column 8 is controlled to be lowered, and the gravity of the counterweight column 8 drives all the corner end blocks 5 to slide outward, so that the tarpaulin 4 at the top of the cargo box 1 is opened to facilitate loading, and a full-area protective cover is formed on both sides of the truck through the fallen tarpaulin 4. Considering that when unloading, the goods are unloaded from the rear end of the vehicle and are not easy to enter the bottom of the vehicle, while when loading, they are mostly loaded from the top of the truck downward or from the side of the truck upward. Therefore, the full-area protective cover at this time plays a certain protective role, that is, preventing people, animals, and debris from accidentally extending into the bottom of the vehicle and causing safety hazards, and also avoiding the loaded goods from entering the bottom of the vehicle and affecting the forward movement of the truck. Therefore, the tarpaulin 4 not only plays the traditional role of covering the open top of the cargo box 1, but also plays the role of intelligent protection and early warning in multiple scenarios.

[0032] Among them, the truck can also be provided with alarm devices such as alarm buzzers and warning lights. The alarm device is electrically connected to the smart sensor 7. When the rear corner end block 5 is sensed by the smart sensor 7, the alarm device is triggered to alarm, thereby serving as a timely warning to remind the staff.

[0033] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a plurality of through holes 21 are provided at intervals along the length direction on both sides of the vehicle chassis 2, and a second pull rope 22 is passed through the through holes 21. The second pull rope 22 is fixedly connected to the side ends of the counterweight column 8. Specifically, a driving device for driving the counterweight column 8 to be lowered or retracted is provided in the vehicle chassis 2. The driving device can adopt an existing conventional structure such as a winding drum. The second pull rope 22 is wound around the winding drum, and the second pull rope 22 is driven to be reeled or unreeled through the winding drum. For example, the second pull rope 22 is reeled until it is tightened inward, pulling the counterweight column 8 parallel to and close to the two sides of the vehicle chassis 2.

[0034] More preferably, the driving device is electrically connected to the smart sensor 7, and when the driving device drives the counterweight column 8 to be retracted to a state close to the side end of the vehicle chassis 2, the smart sensor 7 is triggered to start working, so that when the truck is normally transported, the smart sensor 7 is in a working state. If the cargo box 1 overflows, the rear end corner block 5 is likely to slide outward until it is sensed by the smart sensor 7 and triggers an alarm, thereby promptly reminding the staff. When the cargo box 1 tilts backward to unload, the smart sensor 7 is also in a working state, and its function is to push the protective cover of the smart early warning area inward. When the cargo box 1 is loaded horizontally, the counterweight column 8 is controlled to start to be lowered, which triggers the smart sensor 7 to be in a non-working state to avoid false alarms.

[0035] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, wire grooves 9 are vertically arranged on both sides of the cargo box 1 , and the wire grooves 9 are symmetrically arranged at the head and tail ends of the cargo box 1 for guiding both sides of the tarpaulin 4 .

[0036] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, brush racks 10 are horizontally provided on both sides of the cargo box 1, and the head and tail ends of the brush racks 10 are fixed to the outside of the cargo box 1, and a gap 11 is left between the outer wall of the cargo box 1 for the tarpaulin 4 to pass through. More preferably, a plurality of brush racks 10 are arranged at intervals from top to bottom, which play a certain guiding and limiting role when the tarpaulin 4 moves up and down. More preferably, bristles 12 are provided on the inner end of the brush rack 10, and the bristles 12 are pressed against the outside of the cargo box 1, so as to scrape and brush the tarpaulin 4 when the tarpaulin 4 moves up and down, thereby keeping the tarpaulin 4 clean.

[0037] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

Claims

1. An intelligent canopy device for a dump truck, arranged on a cargo box (1), wherein the rear end of the cargo box (1) is rotatably connected to a chassis (2), characterized in that: A top frame (3) is symmetrically arranged at both ends of the vehicle cargo box (1), the length direction of the top frame (3) is parallel to the width direction of the vehicle cargo box (1), and two tarpaulins (4) are symmetrically arranged on both sides of the vehicle cargo box (1), and corner end blocks (5) are respectively connected at the two corners of the top end of the tarpaulin (4), and the corner end blocks (5) are slidably connected to the top frame (3) and slide freely along the length direction of the top frame (3). A first pull rope (6) is connected between the corner end blocks (5) and the vehicle cargo box (1), and the first pull rope (6) is tightened inwardly to drive all the corner end blocks (5) to slide inwardly, so as to cover the top opening of the vehicle cargo box (1); An intelligent sensor (7) is provided on the top frame (3) located at the rear end of the vehicle cargo box (1); Counterweight columns (8) are provided in parallel along the length direction on both sides of the vehicle chassis (2), and the two corners at the bottom end of the tarpaulin (4) are respectively connected to the front and rear ends of the counterweight columns (8). When the vehicle cargo box (1) is tipped backward to unload, the front end of the counterweight columns (8) pulls the tarpaulin (4), driving the front corner end blocks (5) to slide outward, and a regional protective cover is formed between the vehicle cargo box (1) and the vehicle chassis (2) through the tarpaulin (4). When the regional protective cover is pushed inward, the rear corner end blocks (5) are driven to slide outward until the rear corner end blocks (5) are sensed by the intelligent sensor (7), triggering an alarm and controlling the vehicle cargo box (1) to remain in place. When the vehicle cargo box (1) is loaded horizontally, the counterweight columns (8) are controlled to be lowered, driving all the corner end blocks (5) to slide outward, so that the tarpaulin (4) at the top of the vehicle cargo box (1) is opened, and a full-area protective cover is formed on both sides of the truck through the fallen tarpaulin (4).

2. The intelligent roof device for a dump truck according to claim 1, characterized in that: A plurality of through holes (21) are provided at intervals along the length direction on both sides of the vehicle chassis (2), and a second pull rope (22) is passed through the through holes (21). The second pull rope (22) is fixedly connected to the side ends of the counterweight column (8), and the counterweight column (8) is pulled parallel to and closely against the two sides of the vehicle chassis (2) by tightening the second pull rope (22) inward.

3. The intelligent roof device for a dump truck according to claim 1, characterized in that: A driving device for driving the counterweight column (8) to be lowered or retracted is provided in the vehicle chassis (2); the driving device is electrically connected to the intelligent sensor (7); when the counterweight column (8) is retracted to a state close to the side end of the vehicle chassis (2) by the driving device, the intelligent sensor (7) is triggered to start working.

4. The intelligent roof device for a dump truck according to claim 1, characterized in that: Wire guide grooves (9) are vertically arranged on both sides of the cargo box (1). The wire guide grooves (9) are symmetrically arranged at the front and rear ends of the cargo box (1) and are used to guide the two sides of the tarpaulin (4).

5. The intelligent roof device for a dump truck according to claim 1, characterized in that: Brush racks (10) are horizontally arranged on both sides of the cargo box (1); the head and tail ends of the brush racks (10) are fixed to the outside of the cargo box (1), and a gap (11) is left between the brush racks and the outer wall of the cargo box (1) for the tarpaulin to pass through.

6. The intelligent roof device for a dump truck according to claim 5, characterized in that: The inner end of the brush frame (10) is provided with bristles (12), and the bristles (12) are pressed against the outer side of the vehicle cargo box (1) and are used for scraping the tarpaulin.

7. The intelligent roof device for a dump truck according to claim 5, characterized in that: A plurality of brush racks (10) are arranged at intervals from top to bottom.

8. The intelligent roof device for a dump truck according to claim 1, characterized in that: The first draw cord (6) adopts an elastic cord structure.

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