CN114481751B - Pump truck hopper pumping slurry splashing protection device and application method - Google Patents
Pump truck hopper pumping slurry splashing protection device and application method Download PDFInfo
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- CN114481751B CN114481751B CN202111632083.2A CN202111632083A CN114481751B CN 114481751 B CN114481751 B CN 114481751B CN 202111632083 A CN202111632083 A CN 202111632083A CN 114481751 B CN114481751 B CN 114481751B
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- hopper
- protection plate
- pumping
- splash guard
- plate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/18—Devices for distributing road-metals mixed with binders, e.g. cement, bitumen, without consolidating or ironing effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- Architecture (AREA)
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to a pump truck hopper pumping slurry splashing protection device which comprises a protection module arranged at a hopper opening, wherein the protection module comprises a protection plate and a hoisting wheel driven by a motor, the hoisting wheel is provided with a steel wire rope, the protection plate is arranged above the hopper opening, the inner side of the protection plate is hinged with the hopper opening, the steel wire rope is connected with the outer side of the protection plate, and the hoisting wheel rotates to fold or put down the protection plate. The invention also relates to a use method of the pump truck hopper pumping splash protection device. The invention effectively reduces the manpower investment required for cleaning the concrete blocks around the hopper and cleaning the concrete splashed on the ground, and effectively solves the problem that the pumping of the splashed concrete slurry hurts people, thereby ensuring the safe and effective pumping of the concrete slurry.
Description
Technical Field
The invention relates to a splash-proof device, in particular to a pump truck hopper pumping splash-proof device and a using method thereof.
Background
The pipeline can swing back and forth from side to side when the concrete pump truck pumps concrete, and when the pumping cylinder pumps concrete, because the pressure of pumping is big, can not be sealed completely between eye board and the cutting ring, consequently pumping mechanism during operation can spatter the concrete thick liquid to the hopper periphery for on-the-spot personnel can't be close to the hopper and look over the volume of concrete thick liquid and the thick state of concrete in the hopper. However, the thick state of the concrete can easily cause pipe blockage, and on-site personnel can not judge whether the pipeline is blocked or not under the condition that the thick state of the concrete can not be checked. In addition, the splashed concrete slurry adheres to the ground near the hopper, and the solidified concrete slurry is difficult to clean, and the more the splashed concrete slurry is, the more the hopper is charged. Therefore, the problem of concrete slurry splashing exists when the existing concrete is pumped.
The current method for solving the problems is to adjust the gap between the cutting ring and the glasses plate before the car is taken out, and to place a recyclable rubber sheet on the ground under the hopper, so as to prevent the concrete from splashing to the ground to pollute the ground. However, the existing solution still has the problems that the concrete placed on the ground rubber is difficult to clean after solidification; the clearance between the wear plate and the cutting ring is adjusted to the minimum, and splashed concrete slurry is also generated, and the adjustment before each time of leaving the vehicle is difficult to achieve. Therefore, it is necessary to provide a new device to solve the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a pump truck hopper pumping splashing protection device and a using method thereof, which effectively reduce the manpower investment required for cleaning concrete blocks around a hopper and cleaning concrete splashed on the ground, effectively solve the problem of injury to people caused by pumping splashed concrete slurry, and further ensure the safe and effective pumping of the concrete slurry.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides a pump truck hopper pump sending splash protection device, is including setting up the protection module at the hopper mouth, the protection module includes guard plate and the hoist wheel by motor drive, the hoist wheel is provided with wire rope, the guard plate sets up in hopper mouth top, just the inboard of guard plate is articulated with the hopper mouth, wire rope is connected with the outside of guard plate, the hoist wheel rotates in order to pack up or put down the guard plate.
In one embodiment, a travel limit switch is arranged below the hoisting wheel, and the protection plate is prevented from impacting the hoisting wheel when the protection plate is retracted by the hoisting wheel.
In one embodiment, a tension sensor is arranged on the outer side of the protection plate, and the steel wire rope is connected with the tension sensor. Real-time tension value when tension sensor monitors the taut guard plate of wire rope, along with the live time of guard plate is longer, and the concrete that accumulates in guard plate department is more and more, through the weight change of tension sensor real-time detection guard plate, avoids the guard plate overweight to lead to wire rope fracture or hoist wheel to damage.
In one embodiment, the splash guard is arranged on the bottom surface of the protection plate and convenient to replace, and two sides of the splash guard are sleeved with the protection plate. Specifically, the both sides of splashproof baffle be provided with the spout of guard plate both sides thickness adaptation, the splashproof baffle cup joints in the guard plate outside along the spout, after the splashproof baffle department gathers too much concrete, takes out the splashproof baffle from under the guard plate, change new splashproof baffle can.
In one embodiment, the splash guard is provided with a transparent plastic barrier film on its side for covering the gap between the splash guard and the hopper. When the protection plate is pulled up by the rotation of the hoisting wheel, the gap between the splash guard and the hopper is gradually increased, and the increased gap is covered by the plastic shielding film, so that the thickening degree of concrete in the hopper is not influenced for field personnel to observe.
In one embodiment, the top end of the plastic shielding film is detachably connected with the splash guard, and the bottom end of the plastic shielding film is provided with a hook for hanging a heavy object. A heavy object is hung at the bottom end of the plastic shielding film, so that the problem that the gap between the splash guard and the hopper is exposed due to the fact that the plastic shielding film is blown is solved; and when the plastic shielding film accumulates excessive cured concrete, the old plastic shielding film is detached and replaced by a new plastic shielding film.
In one embodiment, the side surface of the winding wheel is provided with a manual grip.
In one embodiment, the size of the splash guard is smaller than or equal to that of the splash guard, and the size of the splash guard is the same as that of the hopper opening.
The use method of the pump truck hopper pumping splash protection device comprises the steps of putting down the protection plate and lifting the protection plate, and comprises the following specific steps:
putting down the protection plate: before pumping concrete, starting a motor, driving a winding wheel to rotate forward by the motor, slowly putting down a protection plate through a steel wire rope, completely covering a hopper opening by a direct splash guard, and starting pumping the concrete;
lifting the protection plate: in the process of pumping concrete, when the state of concrete slurry in the hopper needs to be detected, a motor is started, the motor drives a hoisting wheel to rotate reversely, a protection plate is slowly lifted up through a steel wire rope, in the process, a plastic shielding film on the side edge of the splash guard covers a gap between the splash guard and the hopper, and the state of the concrete slurry in the hopper is observed through the plastic shielding film; after the inspection is finished, the motor is started again to enable the splash baffle to descend to cover the hopper opening.
In one embodiment, when the tension sensor at the shield plate detects that the real-time tension value exceeds a preset value in a situation where the splash guard completely covers the hopper opening, the motor is started to rotate reversely to lift the shield plate and the splash guard, and simultaneously, the information that the splash guard needs to be replaced is sent out.
In conclusion, the invention has the following beneficial effects:
according to the invention, pumping slurry splashing protection is realized through the protection plate, so that the concrete pump truck can work on any road surface, the road surface cannot be polluted, and the environment is protected; the concrete amount in the hopper and the viscosity of concrete slurry can be checked safely at any time in the pumping process, and the pumping displacement is adjusted timely to achieve the optimal pumping working condition; so as to reduce concrete caking around the hopper, reduce cleaning labor, prolong the cleaning period and improve the delivery rate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the attachment of the shield plate of the present invention to the splash guard.
In the figure: the device comprises a hopper, a motor, a winding wheel, a stroke limit switch, a steel wire rope, a splash guard, a tension sensor, a protective plate, a plastic shielding film and a hook, wherein the hopper is 1 part, the motor is 2 parts, the winding wheel is 3 parts, the stroke limit switch is 4 parts, the steel wire rope is 5 parts, the splash guard is 6 parts, the tension sensor is 7 parts, the protective plate is 8 parts, the plastic shielding film is 9 parts, and the hook is 10 parts.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.
As shown in fig. 1-2, the present invention aims to effectively reduce the manpower investment required for cleaning concrete blocks around a hopper and cleaning concrete splashed on the ground, and effectively solve the problem of injury to people caused by pumping splashed concrete slurry, thereby ensuring safe and effective pumping of the concrete slurry. Therefore, the invention provides a pump truck hopper 1 pumping slurry splashing protection device which comprises a protection module arranged at a hopper opening, wherein the protection module comprises a protection plate 8 and a hoisting wheel 3 driven by a motor 2, the hoisting wheel 3 is provided with a steel wire rope 5, the protection plate 8 is arranged above the hopper opening, the inner side of the protection plate 8 is hinged with the hopper opening, the steel wire rope 5 is connected with the outer side of the protection plate 8, and the hoisting wheel 3 rotates to pack up or put down the protection plate 8.
Specifically, taking the view angle of the drawing as an example, the position where the protection plate 8 is hinged to the hopper opening is the inner side of the protection plate 8, one side of the protection plate 8, which is far away from the hinged position, is the outer side, and the two sides of the protection plate 8 refer to the two remaining side surfaces of the protection plate 8 except the inner side and the outer side, it is easy to understand that the inner side and the outer side of the protection plate 8 are oppositely arranged, and the inner side and the outer side are not adjacent, and similarly, the two sides of the protection plate 8 are also oppositely arranged and not adjacent.
It should be noted that, in the present invention, the movement track of the protection plate 8 is fixed, so the maximum number of forward rotation or reverse rotation of the hoisting wheel 3 is also fixed, and therefore the limit position of the protection plate 8 for lowering and the limit position of the protection plate for raising are limited by setting the maximum number of forward rotation and the maximum number of reverse rotation of the output shaft of the motor 2.
It will be readily appreciated that the fender 8 may be retained in any position between the raised limit position and the lowered limit position when the motor 2 is driving the winding wheel 3 to rotate.
Further, a travel limit switch 4 is arranged below the hoisting wheel 3, and the protection plate 8 is prevented from impacting the hoisting wheel 3 when the protection plate 8 is retracted by the hoisting wheel 3. It can be understood that under the condition that the forward and reverse rotation of the motor 2 is out of control, if the protection plate 8 is in a descending state at the moment, even if the rotation turns of the hoisting wheel 3 exceed the limit, the protection plate 8 can directly cover the hopper opening, the concrete slurry can be normally pumped, and the normal operation is not influenced; but if guard plate 8 was in the state of rising this moment, then 3 rotation turns of hoisting wheel surpass the restriction and can lead to 8 direct impact hopper mouths of guard plate, can lead to hopper 1, 3 and motor 2's damage of hoisting wheel when serious, consequently also set up travel limit switch 4 in 1 lateral wall department of hopper in 3 below of hoisting wheel, when travel limit switch 4 detected that guard plate 8 is close to, to the controller message, controller control motor 2 cuts off the power supply, prevents that guard plate 8 from striking hopper 1.
The controller is an existing conventional PLC controller, and the travel limit switch 4 is an existing conventional limit switch.
Furthermore, a tension sensor 7 is arranged on the outer side of the protection plate 8, and the steel wire rope 5 is connected with the tension sensor 7. Real-time tension value when tension sensor 7 monitors the taut guard plate 8 of wire rope 5, along with the live time of guard plate 8 is longer, the concrete that accumulates in guard plate 8 department is more and more, through the weight change of tension sensor 7 real-time detection guard plate 8, avoids 8 overweight wire ropes 5 fracture or the damage of hoist wheel 3 of leading to of guard plate.
Specifically, when the motor 2 drives the winding wheel 3 to rotate forwards or backwards, the winding wheel 3 puts down the protection plate 8 or lifts up the protection plate 8 through the steel wire rope 5. It should be noted that, according to mechanical analysis, when the protection plate 8 covers the hopper opening, the protection plate 8 receives the steel wire rope 5 pulling force and is the biggest, in the process of lifting the protection plate 8, the pulling force that the protection plate 8 received reduces gradually, that is, in the process of lifting the protection plate 8, the influence of the gravity of the protection plate 8 on the hoisting wheel 3 and the steel wire rope 5 reduces gradually, and in the same way, in the process of lowering the protection plate 8, the influence of the gravity of the protection plate 8 on the hoisting wheel 3 and the steel wire rope 5 increases gradually, therefore, the basis whether the pulling force that the tension sensor 7 detected when the protection plate 8 descends to the limit position is the concrete that needs to be cleaned up at the protection plate 8 or not is adopted.
It should be noted that, too heavy guard plate 8 can direct influence hoist wheel 3 and motor 2, because guard plate 8 passes through wire rope 5 and is connected with hoist wheel 3, hoist wheel 3 and motor 2's output shaft lug connection, and hoist wheel 3 and motor 2 are detachably fixed in hopper mouth top, when guard plate 8 is too much because the concrete of accumulation solidification, guard plate 8's whole weight increase, through 5 pulling hoist wheel 3 of wire rope, make hoist wheel 3 and 1 separation of hopper, and then pulling motor 2 and 1 separation of hopper.
In the invention, a tension sensor 7 is arranged on the part, close to the outer side, of the top surface of the protection plate 8, and the steel wire rope 5 is connected with the tension sensor 7, namely, the protection plate 8 is indirectly connected with the winch through the tension sensor 7. In-process that makes guard plate 8 rise or fall rotates at the hoist engine, tension sensor 7 real-time supervision pulling force changes, and when detecting that real-time pulling force value is greater than the default, tension sensor 7 sends information to the controller, reminds the site personnel in time to clear up the concrete that guard plate 8 department accumulated. In the present invention, the tension sensor 7 is a conventional tension sensor 7, and the tension sensor 7 is electrically connected to the controller.
Further, the bottom surface of guard plate 8 is provided with the splashproof baffle 6 of being convenient for to change, the both sides of splashproof baffle 6 cup joint with guard plate 8. Specifically, the both sides of splashproof baffle 6 are provided with the spout with 8 both sides thickness adaptations of guard plate, and splashproof baffle 6 cup joints in the 8 outsides of guard plate along the spout, and after 6 departments of splashproof baffle gathered too much concrete, take splashproof baffle 6 out from 8 bottoms of guard plate, the splashproof baffle 6 of renewal can.
Wherein the size of the shield plate 8 is smaller than or equal to the size of the splash guard 6, and the size of the splash guard 6 is the same as the size of the hopper opening.
As shown in the accompanying drawings, the splash guard 6 is actually nested outside the protection plate 8, the sliding chutes on two sides of the splash guard 6 are slidably embedded with two sides of the protection plate 8, the splash guard 6 is located on the bottom surface of the protection plate 8, and the splash guard 6 blocks concrete slurry in the hopper 1 when the concrete slurry is splashed out. As can be known by referring to the attached drawing 2, when the splash guard 6 is nested outside the protection plate 8, the tension sensor 7 is arranged on the top surface of the protection plate 8 and is not influenced.
It should be noted that, after the splash guard 6 is provided outside the shield plate 8, the shield plate 8 and the splash guard 6 are integrated, and the preset value of the tension sensor 7 is based on the total weight of the shield plate 8 and the splash guard 6.
Further, a transparent plastic shielding film 9 is arranged on the side edge of the splash guard 6 and used for covering the gap between the splash guard 6 and the hopper 1. When the protective plate 8 is pulled up by the rotation of the hoisting wheel 3, the gap between the splash guard 6 and the hopper 1 is gradually increased, and the increased gap is covered by the plastic shielding film 9, so that the viscosity degree of concrete in the hopper 1 observed by field personnel is not influenced. The top end of the plastic shielding film 9 is detachably connected with the splash guard 6, and a hook 10 for hanging a heavy object is arranged at the bottom end of the plastic shielding film 9. Hanging a heavy object at the bottom end of the plastic shielding film 9, so that the problem that the gap between the splash guard 6 and the hopper 1 is exposed due to the fact that the plastic shielding film 9 is blown is solved; after the plastic shielding film 9 accumulates excessive solidified concrete, the old plastic shielding film 9 is removed, and a new plastic shielding film 9 is replaced.
Specifically, when the on-site person needs to observe the state of concrete in the hopper 1, if directly rise guard plate 8 and splashproof 6, the clearance between splashproof 6 and the hopper 1 can obviously increase, and splashproof 6 can not well play the effect of preventing the concrete thick liquid spill this moment. According to the invention, the transparent plastic shielding film 9 is arranged on the side edge of the splash baffle 6, so that the splash baffle plays a role in preventing concrete slurry from splashing, and field personnel are not hindered from observing the state of the concrete slurry in the hopper 1.
It will be readily appreciated that the prevention of concrete grout from splashing by the plastic barrier film 9 is not in conflict with the observation of the state of the concrete grout in the hopper 1 by field personnel through the plastic barrier film 9, since concrete grout does not continuously splash during the pumping of concrete grout, and the plastic barrier film 9 only prevents concrete grout from splashing.
In addition, because the plastic shielding film 9 is light in weight and is easy to turn up when being impacted by splashed concrete slurry or blown by wind, a heavy object is hung at the bottom end of the plastic shielding film 9, and the plastic shielding film 9 is prevented from turning up. It is easy to understand that the amount of the heavy material hanging on the bottom end of the plastic shielding film 9 should not be too large, so as to prevent the plastic shielding film 9 from turning over.
Further, the side of the winding wheel 3 is provided with a manual grip. When the motor 2 fails and cannot drive the hoisting wheel 3, field personnel can rotate the hoisting wheel 3 through a manual handle to realize the lifting of the protection plate 8 and the splash guard 6.
The invention also provides a use method of the pump truck hopper 1 pumping slurry splashing protection device, which comprises the steps of lowering the protection plate 8 and lifting the protection plate 8, and comprises the following specific steps:
the protection plate 8 is put down: before pumping concrete, starting the motor 2, driving the hoisting wheel 3 to rotate in the forward direction by the motor 2, slowly putting down the protection plate 8 through the steel wire rope 5, completely covering the hopper opening by the direct splash guard 6, and starting pumping concrete; specifically, when the outer end of the splash guard 6 is 10cm away from the hopper opening, the motor 2 can be stopped, and the splash guard 6 stays at the position, but when concrete slurry is thin and much slurry splashes in the pumping process of the pump truck, the protection plate 8 is continuously put down until the outer end of the splash guard 6 is 5cm away from the hopper opening, and the smaller the gap between the splash guard 6 and the hopper 1 is, the less concrete slurry is splashed;
raising the protection plate 8: in the process of pumping concrete, when the state of concrete slurry in the hopper 1 needs to be detected, the motor 2 is started, the motor 2 drives the hoisting wheel 3 to rotate reversely, the protection plate 8 is lifted slowly through the steel wire rope 5, in the process, the plastic shielding film 9 on the side edge of the splash guard 6 covers a gap between the splash guard 6 and the hopper 1, and the state of the concrete slurry in the hopper 1 is observed through the plastic shielding film 9; after the inspection is completed, the motor 2 is again started to lower the splash guard 6 to cover the hopper mouth.
Further, under the condition that splash guard 6 covers the hopper mouth completely, when tension sensor 7 of guard plate 8 department detects that real-time tension value exceeds the preset value, starter motor 2 counter-rotation rises guard plate 8 and splash guard 6, sends the information that needs to change splash guard 6 simultaneously.
In the invention, the protection plate 8 and the splash guard 6 can be made of wooden splints used in construction sites, the stainless steel sheet is adhered to the outer surface of the protection plate, the wooden splints are low in cost and light in weight, the stainless steel sheet is bound on the outer surface, concrete paste is adhered on the outer surface of the protection plate, the protection plate is easy to clean, the protection plate is not rusted, the protection plate can be used for a long time, and the cost is low.
The motor 2 is a direct current motor 2, the inside of the motor is provided with a brake, and the direct current motor 2 is provided with a forward and reverse rotation switch and is used for controlling the forward and reverse rotation of the direct current motor 2, so that the protection plate 8 is folded and unfolded.
The invention has the following effects:
according to the invention, through the combination of the protective plate 8 and the splash guard 6, the problem that concrete condensed on the surface of a plate is difficult to clean is effectively solved, and the splash guard 6 is hard, flat and smooth in surface and easy to clean when being bonded with concrete.
The invention solves the problems that the periphery of the hopper 1 is covered by concrete slurry caking for a long time and is difficult to clean, and the concrete slurry can not splash to the ground and pollute the environment.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and all technical solutions that belong to the idea of the present invention belong to the scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. The pump truck hopper (1) pumping slurry splashing protection device is characterized by comprising a protection module arranged at a hopper opening, wherein the protection module comprises a protection plate (8) and a hoisting wheel (3) driven by a motor (2), the hoisting wheel (3) is provided with a steel wire rope (5), the protection plate (8) is arranged above the hopper opening, the inner side of the protection plate (8) is hinged with the hopper opening, the steel wire rope (5) is connected with the outer side of the protection plate (8), and the hoisting wheel (3) rotates to pack up or put down the protection plate (8);
the bottom surface of the protection plate (8) is provided with a splash guard (6) convenient to replace, and two sides of the splash guard (6) are sleeved with the protection plate (8);
a transparent plastic shielding film (9) is arranged on the side edge of the splash baffle (6) and used for covering a gap between the splash baffle (6) and the hopper (1);
the top end of the plastic shielding film (9) is detachably connected with the splash guard (6), and a hook (10) for hanging a heavy object is arranged at the bottom end of the plastic shielding film (9).
2. The pump truck hopper (1) pumping splash protection device as claimed in claim 1, characterized in that a travel limit switch (4) is arranged below the hoisting wheel (3).
3. The pump truck hopper (1) pumping splash protection device according to claim 2, characterized in that a tension sensor (7) is arranged outside the protection plate (8), and the steel wire rope (5) is connected with the tension sensor (7).
4. The pump truck hopper (1) pumping splash guard of claim 1, characterized in that the hoisting wheel (3) is provided with a manual grip on the side.
5. The pump truck hopper (1) pumping splash guard of claim 1, characterized in that the dimensions of the shield plate (8) are smaller than or equal to the dimensions of the splash baffle (6), the dimensions of the splash baffle (6) being the same as the dimensions of the hopper mouth.
6. Use of a pump truck hopper (1) pumping splash guard, suitable for a pump truck hopper (1) pumping splash guard according to claim 1, characterized in that it comprises the steps of lowering the guard (8) and raising the guard (8):
put down the guard plate (8): before pumping concrete, starting a motor (2), driving a hoisting wheel (3) to rotate in the forward direction by the motor (2), slowly putting down a protection plate (8) through a steel wire rope (5), completely covering a hopper opening by a direct splash guard (6), and starting pumping concrete;
raising guard plate (8): in the process of pumping concrete, when the state of concrete slurry in the hopper (1) needs to be detected, the motor (2) is started, the motor (2) drives the hoisting wheel (3) to rotate reversely, the protective plate (8) is slowly lifted through the steel wire rope (5), in the process, the plastic shielding film (9) on the side edge of the splash guard (6) covers a gap between the splash guard (6) and the hopper (1), and the state of the concrete slurry in the hopper (1) is observed through the plastic shielding film (9); after the inspection is finished, the motor (2) is started again to enable the splash guard (6) to descend to cover the hopper opening.
7. Use according to claim 6, characterized in that when the tension sensor (7) at the shield plate (8) detects a real-time tension value exceeding a preset value in case the splash guard (6) completely covers the hopper mouth, the motor (2) is activated to rotate in reverse to lift the shield plate (8) and the splash guard (6) and to signal the need to replace the splash guard (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111632083.2A CN114481751B (en) | 2021-12-28 | 2021-12-28 | Pump truck hopper pumping slurry splashing protection device and application method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111632083.2A CN114481751B (en) | 2021-12-28 | 2021-12-28 | Pump truck hopper pumping slurry splashing protection device and application method |
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| CN114481751A CN114481751A (en) | 2022-05-13 |
| CN114481751B true CN114481751B (en) | 2023-04-07 |
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