Environment protection equipment for building construction

Abstract

The invention belongs to the technical field of environmental protection equipment, and particularly relates to environmental protection equipment for building construction, the environmental protection equipment comprises a moving box and a control box arranged on the upper side wall of the moving box, and a PLC is arranged in the control box. When a wall surface is polished and leveled, dust generated in the polishing process can be adsorbed, dust blocked in holes of a filter screen can be automatically treated in the treatment process, an operator does not need to stop the machine for treatment, the working performance stability of the equipment is guaranteed, and meanwhile the working efficiency of the equipment is improved. The wall polishing efficiency of an operator is guaranteed, the operator can be reminded in time after the filter screen in the dust removal equipment is subjected to hole abrasion, the position of the abraded filter screen is automatically marked, the operator can conveniently and rapidly find the abraded filter screen in the follow-up process and replace the abraded filter screen, and the working efficiency of the operator is improved. And the working convenience of operators is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental protection equipment, and in particular relates to an environmental protection equipment for building construction. Background Art

[0002] After the construction process such as wall construction or plastering is completed, there may be some unevenness on the surface. For example, the mortar is unevenly applied during plastering, and there may be bumps or depressions in some parts. These bumps can be smoothed out and the depressions can be filled by grinding to make the wall surface relatively flat, so as to meet the requirements of subsequent decoration projects (such as wallpapering, latex paint, etc.) for wall flatness.

[0003] In the process of grinding the wall, a lot of dust will be generated. In order to reduce the harm of dust to construction workers, it is usually necessary to use adsorption dust removal equipment to deal with the dust generated during the grinding process. For example, an environmental protection device for construction is proposed in patent announcement number CN115532015A.

[0004] In the construction scene, the existing dust removal equipment mainly relies on the filter to achieve the adsorption and filtration of the dust generated during the construction process. However, the wall grinding process in the construction often generates a lot of dust, and the dust is also mixed with a lot of particles such as gravel, which can easily cause the filter to be blocked. Based on this, the dust removal equipment usually has to be stopped for a long time after only a few hours of continuous operation to clean the filter, which undoubtedly greatly slows down the efficiency of the operator in wall grinding. Not only that, during the normal operation of the dust removal equipment, the sand and gravel generated by wall grinding will be quickly sucked in along with the high-speed airflow inside the equipment. When the sand and gravel passes through the filter, it will violently hit the surface of the filter at a high speed. Over time, such frequent high-speed impacts will cause damage to the material on the surface of the filter, causing the mesh of the filter to gradually become larger, ultimately leading to a significant reduction in the filtering performance of the filter.

[0005] Therefore, an environmental protection device for building construction is proposed to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide an environmental protection device for construction in view of the above problems.

[0007] To achieve the above object, the present invention adopts the following technical scheme: an environmental protection device for construction, comprising a mobile box and a control box arranged on the upper side wall of the mobile box, wherein a PLC controller is arranged inside the control box, and further comprising: Three filter assemblies are all arranged inside the mobile box through a power assembly. An upper block and a lower block are arranged on the inner wall of the mobile box. An air duct is formed between the upper block and the lower block. The three filter assemblies are all located in the air duct. Three dust lowering ports are opened on the side wall of the lower block. A dust exhaust pipe is connected to the lower side wall of the mobile box, and a control valve is arranged in the dust exhaust pipe. The air intake assembly is connected to the right side wall of the mobile box and is used to absorb dust from grinding. The left side wall of the mobile box is fixedly connected to a first high-pressure air pump, and the air intake end of the first high-pressure air pump is connected to the air duct.

[0008] Preferably, the filter assembly comprises a cylinder and two mounting plates, the two mounting plates are connected to the side walls on the front and rear sides of the moving box by fixing parts, the side wall of the mounting plate on the rear side is rotatably connected with a rotating tube, the front end of the rotating tube is located in the moving box, the cylinder and the front end of the rotating tube are fixedly connected, the cylinder is rotatably connected to the rear side wall of the front mounting plate through a rotating shaft, the side wall of the cylinder is provided with a plurality of filter ports, the inner wall of the cylinder is provided with a plurality of mounting grooves, the inner wall of the mounting groove is fixedly connected with a supporting cylinder, a supporting pin is inserted in the supporting cylinder, one end of the supporting pin located in the supporting cylinder is fixedly connected with a spring plate, and a fixed connection between the spring plate and the supporting cylinder is provided. The filter screen is located inside the cylinder, and a second high-pressure air pump is fixedly connected to the rear wall of the movable box, and the suction end of the second high-pressure air pump is connected to the air duct inside the movable box and is located on the left side of the filter assembly. The air outlet end of the second high-pressure air pump is connected to a square tube, and the upper wall of the square tube is connected to an air supply pipe through a connecting piece. The upper end of the air supply pipe passes through a rotating tube and is located in the cylinder, and the lower wall of the air supply pipe is connected to multiple nozzles, and multiple sensing components are fixedly connected to the inside of the cylinder.

[0009] Preferably, the sensing component comprises a sensing cylinder and a micro-electric push rod, the sensing cylinder is fixedly connected to the inner wall of the cylinder, the micro-electric push rod is fixedly connected to the inner wall of the sensing cylinder, the moving end of the micro-electric push rod is fixedly connected to a piston plate, the inner wall of the sensing cylinder is fixedly connected to a baffle, the upper side wall of the sensing cylinder is connected to an air supply pipe, the side walls of the piston plate and the baffle are both provided with vents, the vents and the air supply pipe are both provided with a one-way valve, the side wall of the sensing cylinder away from the micro-electric push rod is fixedly connected to a piston seat through a spring, the upper side wall of the sensing cylinder is provided with an air pressure hole, the upper inner wall of the sensing cylinder is fixedly connected to a trigger switch, and the trigger switch is located in the moving path of the piston seat The diameter of the induction cylinder is located at a small hole between the piston seat and the baffle plate on the lower side wall, and a plurality of warning lights are inlaid on the outer wall of the cylinder. The trigger switch is electrically connected to the corresponding warning lights and the indicator inside the control box through the PLC controller. The side wall of the spring plate located above the same group is fixedly connected with a conductive block, and the inner wall of the support cylinder is inlaid with a resistor plate, the conductive block is electrically connected to an external power supply, the inner wall of the filter port is fixedly connected with a conductive block, and the end of the resistor plate away from the conductive block is electrically connected to the conductive block, and a plurality of conductive frames are fixedly connected to the upper inner wall of the air duct, the conductive block contacts the conductive frame during rotation, and the conductive frame is electrically connected to the PLC controller.

[0010] Preferably, the power assembly includes a control motor and a belt drum transmission assembly, the control motor is fixedly connected to the rear wall of the middle rear mounting plate, the control motor is connected to the middle rotating tube through a bevel gear transmission assembly, and the three rotating tubes are connected to each other through the belt drum transmission assembly.

[0011] The cam is an air intake pipe and an air intake hood, the left end of the air intake pipe is connected to the movable box and is located in the air duct, the right end of the air intake pipe is connected to the air intake hood, and an adjusting frame is placed on the rear side of the air intake hood, the rear side wall of the air intake hood is fixedly connected to an adjusting sleeve arranged on the outer side of the adjusting frame, the side wall of the adjusting sleeve is provided with a positioning hole, and a positioning pin is inserted in the positioning hole, the side wall of the adjusting frame is provided with a positioning groove that matches the positioning pin. The rear end of the positioning pin is fixedly connected to a pulling plate, the pulling plate and the adjusting sleeve are fixedly connected with the same spring, the lower end of the adjusting frame is fixedly connected to the placing frame, the inner wall of the placing frame is rotatably connected to the bottom plate, the front side wall of the placing frame is provided with a horizontal hole, and a horizontal pin is inserted in the horizontal hole, the front end of the horizontal pin is fixedly connected to a vertical plate, the vertical plate and the placing frame are fixedly connected with the same spring, the upper side wall of the bottom plate is fixedly connected to a supporting plate, and the side wall of the supporting plate is provided with a locking hole that matches the horizontal pin.

[0012] Preferably, the side walls of the upper block and the lower block on the opposite side are both provided with arc-shaped grooves, and the inner walls of the two arc-shaped grooves are fixedly connected with rubber strips.

[0013] Preferably, the front side wall of the cylinder is fixedly connected with a rubber ring, the rear side wall of the cylinder is fixedly connected with a sealing ring, the front side wall of the mounting plate located at the rear side is fixedly connected with a connecting ring, and the connecting ring and the sealing ring are rotatably connected via a sealing bearing.

[0014] Preferably, a handle is fixedly connected to the left side wall of the moving box, self-locking wheels are fixedly connected to the four corners of the lower side wall of the moving box, and a storage frame is fixedly connected to the right outer wall of the moving box.

[0015] Compared with the existing technology, the advantages of an environmental protection device for construction are: Through the set filtering component, when the wall is polished and leveled, the dust generated during the polishing process can be adsorbed and processed. In the process of processing, the dust blocked in the holes of the filter mesh can be automatically processed without the operator stopping the machine for processing. While ensuring the stability of the equipment's working performance, it also ensures the operator's efficiency in polishing the wall.

[0016] Through the set sensing component, when the holes of the filter inside the dust removal equipment are worn, the operator can be reminded of this situation in time, and the position of the worn filter can be automatically marked, so that the operator can quickly find the worn filter and replace it, thereby improving the convenience of the operator's work.

[0017] By setting up the air intake component, when the operator is grinding the wall, the air intake of the dust removal equipment can be placed at a position close to the grinding position according to the grinding position of the wall, so that the dust removal equipment can absorb all the dust produced by grinding, further improving the working performance of the dust removal equipment, and the supporting components are also easy to store and carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an environmental protection device for building construction provided by the present invention; Figure 2 It is a structural schematic diagram of an air intake assembly in an environmental protection device for construction provided by the present invention; Figure 3 It is a structural schematic diagram of an upper block and a lower block in an environmental protection device for building construction provided by the present invention; Figure 4 It is a schematic diagram of the installation method of a filter screen in an environmental protection device for construction provided by the present invention; Figure 5The invention provides an environmental protection device for construction Figure 4 A magnified schematic diagram of part A; Figure 6 It is a structural schematic diagram of a sensing component in an environmental protection device for construction provided by the present invention; Figure 7 It is a schematic diagram of a fixing method of an air intake hood in an environmental protection device for building construction provided by the present invention; Figure 8 It is a partial right view of a mobile box in an environmental protection device for construction provided by the present invention; Fig. 9 The invention provides an environmental protection device for construction Figure 8 A magnified schematic diagram of part B; Fig.10 It is a schematic diagram of the position relationship of the suction end in an environmental protection device for construction provided by the present invention; Fig.11 The present invention is a schematic diagram of the positional relationship between a bottom plate and a support plate in an environmental protection device for construction provided by the present invention.

[0019] In the figure: 1 mobile box, 2 control box, 3 PLC controller, 4 upper block, 5 lower block, 6 air duct, 7 dust lowering port, 8 dust exhaust pipe, 9 first high-pressure air pump, 10 filter assembly, 101 cylinder, 102 mounting plate, 11 rotating tube, 12 filter port, 13 mounting groove, 14 support cylinder, 15 support pin, 16 spring plate, 17 filter screen, 18 second high-pressure air pump, 19 square tube, 20 air supply pipe, 21 jet head, 22 induction assembly, 221 induction cylinder, 222 micro electric push rod, 23 piston plate, 24 baffle, 25 air supply pipe, 26 vent, 27 piston seat , 28 trigger switch, 29 small hole, 30 warning light, 31 conductive block, 32 resistor plate, 33 conduction block, 34 conduction frame, 35 power assembly, 351 control motor, 352 belt drum transmission assembly, 36 air intake assembly, 361 air intake pipe, 362 air intake cover, 37 adjustment frame, 38 adjustment sleeve, 39 positioning hole, 40 positioning pin, 41 pull plate, 42 placement frame, 43 bottom plate, 44 horizontal pin, 45 vertical plate, 46 support plate, 47 arc groove, 48 rubber strip, 49 rubber ring, 50 sealing ring, 51 connecting ring, 52 handle, 53 storage frame, 54 suction end. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] like Figure 1-Figure 11As shown, an environmental protection device for construction includes a mobile box 1 and a control box 2 arranged on the upper side wall of the mobile box 1, a PLC controller 3 is arranged inside the control box 2, and also includes: Three filter assemblies 10 are all arranged inside the mobile box 1 through a power assembly 35. An upper block 4 and a lower block 5 are provided on the inner wall of the mobile box 1. An air duct 6 is formed between the upper block 4 and the lower block 5. The three filter assemblies 10 are all located in the air duct 6. Three dust lowering ports 7 are opened on the side wall of the lower block 5. A dust exhaust pipe 8 is connected to the lower side wall of the mobile box 1, and a control valve is provided in the dust exhaust pipe 8. The air intake assembly 36 is connected to the right side wall of the mobile box 1 and is used to absorb the dust from grinding. The left side wall of the mobile box 1 is fixedly connected to the first high-pressure air pump 9, and the air intake end of the first high-pressure air pump 9 is connected to the air duct 6.

[0022] The filter assembly 10 includes a cylinder 101 and two mounting plates 102, and the two mounting plates 102 are connected to the side walls of the front and rear sides of the mobile box 1 through fixings, and the side wall of the rear mounting plate 102 is rotatably connected with a rotating tube 11, and the front end of the rotating tube 11 is located in the mobile box 1, and the cylinder 101 is fixedly connected with the front end of the rotating tube 11, and the cylinder 101 is rotatably connected to the rear side wall of the front mounting plate 102 through a rotating shaft, and a plurality of filter ports 12 are provided on the side wall of the cylinder 101, and a plurality of mounting grooves 13 are provided on the inner wall of the cylinder 101, and a support cylinder 14 is fixedly connected to the inner wall of the mounting groove 13, and a support pin 15 is inserted in the support cylinder 14, and one end of the support pin 15 located in the support cylinder 14 is fixedly connected to a spring plate 16, and the same spring is fixedly connected between the spring plate 16 and the support cylinder 14, and the ends of two adjacent support pins 15 away from the support cylinder 14 are fixedly connected to the same filter located outside the filter port 12 through fixings. Net 17, filter net 17 is located inside the cylinder 101, the rear side wall of the mobile box 1 is fixedly connected with a second high-pressure air pump 18, the suction end 54 of the second high-pressure air pump 18 is connected with the air duct 6 inside the mobile box 1, and is located on the left side of the filter assembly 10, the air outlet end of the second high-pressure air pump 18 is connected with a square tube 19, the pipe wall on the upper side of the square tube 19 is connected with an air supply pipe 20 through a connecting piece, the upper end of the air supply pipe 20 passes through the rotating tube 11 and is located in the cylinder 101, the lower side pipe wall of the air supply pipe 20 is connected with a plurality of nozzles 21, and a plurality of induction components 22 are fixedly connected inside the cylinder 101. When the wall is polished and leveled, the dust generated during the polishing process can be adsorbed and processed, and in the process of processing, the dust blocked in the holes of the filter net 17 can be automatically processed without the operator having to stop the machine for processing. While ensuring the stability of the equipment's working performance, the efficiency of the operator in polishing the wall is also guaranteed.

[0023] The sensing assembly 22 includes a sensing cylinder 221 and a micro electric push rod 222. The sensing cylinder 221 is fixedly connected to the inner wall of the cylinder 101. The micro electric push rod 222 is fixedly connected to the inner wall of the sensing cylinder 221. The moving end of the micro electric push rod 222 is fixedly connected to a piston plate 23. The inner wall of the sensing cylinder 221 is fixedly connected to a baffle 24. The upper side wall of the sensing cylinder 221 is connected to an air delivery pipe 25. The side walls of the piston plate 23 and the baffle 24 are both provided with air vents 26. The air vents A one-way valve is provided in each of the air pipe 26 and the air delivery pipe 25. The side wall of the sensing cylinder 221 away from the micro electric push rod 222 is fixedly connected to the piston seat 27 through a spring. The upper side wall of the sensing cylinder 221 is provided with an air pressure hole. The upper inner wall of the sensing cylinder 221 is fixedly connected to a trigger switch 28. The trigger switch 28 is located in the moving path of the piston seat 27. The lower side wall of the sensing cylinder 221 is provided with a small hole 29 located between the piston seat 27 and the baffle 24. The outer wall of the cylinder 101 is inlaid with A plurality of warning lights 30, a trigger switch 28 is electrically connected through the PLC controller 3 and the corresponding warning lights 30, as well as the indicator inside the control box 2. A conductive block 31 is fixedly connected to the side wall of the upper spring plate 16 in the same group, and a resistor plate 32 is inlaid on the inner wall of the support cylinder 14. The conductive block 31 is electrically connected to an external power supply. A conductive block 33 is fixedly connected to the inner wall of the filter port 12. The end of the resistor plate 32 away from the conductive block 31 is electrically connected to the conductive block 33. A plurality of conductive frames 34 are fixedly connected to the upper inner wall of the air duct 6. The conductive block 33 contacts the conductive frame 34 during rotation. The conductive frame 34 is electrically connected to the PLC controller 3. When the filter screen 17 inside the dust removal equipment is worn, the operator can be reminded of this in time, and the position of the worn filter screen 17 can be automatically marked, so that the operator can quickly find the worn filter screen 17 and replace it, thereby improving the convenience of the operator's work.

[0024] The power assembly 35 includes a control motor 351 and a belt drum transmission assembly 352. The control motor 351 is fixedly connected to the rear wall of the middle rear mounting plate 102. The control motor 351 is connected to the middle rotating tube 11 through a bevel gear transmission assembly. The three rotating tubes 11 are connected to each other through the belt drum transmission assembly 352, and can control multiple cylinders 101 to work simultaneously.

[0025] The air intake assembly 36 includes an air intake pipe 361 and an air intake cover 362. The left end of the air intake pipe 361 is connected to the mobile box 1 and is located in the air duct 6. The right end of the air intake pipe 361 is connected to the air intake cover 362. An adjustment frame 37 is placed on the rear side of the air intake cover 362. The rear side wall of the air intake cover 362 is fixedly connected with an adjustment sleeve 38 sleeved on the outside of the adjustment frame 37. A positioning hole 39 is provided on the side wall of the adjustment sleeve 38, and a positioning pin 40 is inserted in the positioning hole 39. A positioning groove matching the positioning pin 40 is provided on the side wall of the adjustment frame 37. A pull plate 41 is fixedly connected to the rear end of the positioning pin 40. The same spring is fixedly connected between the pull plate 41 and the adjustment sleeve 38. The lower end of the adjustment frame 37 is fixedly connected with a placement frame 42. The inner wall of the rack 42 is rotatably connected to the base plate 43, and the front side wall of the rack 42 is provided with a transverse hole, and a transverse pin 44 is inserted in the transverse hole, and the front end of the transverse pin 44 is fixedly connected to a vertical plate 45, and the vertical plate 45 and the rack 42 are fixedly connected with the same spring, and the upper side wall of the base plate 43 is fixedly connected to a support plate 46, and the side wall of the support plate 46 is provided with a locking hole that matches the transverse pin 44. When the operator is grinding the wall, the air inlet of the dust removal equipment can be placed at a position close to the grinding position according to the grinding position of the wall, so that the dust removal equipment can absorb all the dust from grinding, further improving the working performance of the dust removal equipment, and the supporting components are also easy to store and carry.

[0026] The side walls of the upper block 4 and the lower block 5 on the opposite side are both provided with arc grooves 47 , and the inner walls of the two arc grooves 47 are fixedly connected with rubber strips 48 , which can prevent dust from passing through the gap between the cylinder 101 and the air duct 6 .

[0027] A rubber ring 49 is fixedly connected to the front side wall of the cylinder 101, a sealing ring 50 is fixedly connected to the rear side wall of the cylinder 101, and a connecting ring 51 is fixedly connected to the front side wall of the rear mounting plate 102. The connecting ring 51 and the sealing ring 50 are rotatably connected via a sealed bearing, which can prevent dust from passing through the gap between the cylinder 101 and the two mounting plates 102.

[0028] A handle 52 is fixedly connected to the left side wall of the moving box 1, self-locking wheels are fixedly connected to the four corners of the lower side wall of the moving box 1, and a storage frame 53 is fixedly connected to the right outer wall of the moving box 1, so as to improve the convenience of moving the moving box 1.

[0029] The operating principle of the present invention is now described as follows: the dust removal equipment is moved to the position where the wall needs to be polished, and then the adjustment frame 37 (the adjustment frame 37 is a foldable mechanism), the air intake pipe 361 and the air intake cover 362 are taken out from the storage frame 53. Then the operator pulls the vertical plate 45 with one hand, and drives the horizontal pin 44 to move to a certain position to the front side through the vertical plate 45, so that the horizontal pin 44 is removed from the rotation path of the support plate 46. Then, the operator rotates the bottom plate 43 with the other hand to make the bottom plate 43 contact with the ground. During the rotation process, the bottom plate 43 will drive the support plate 46 to rotate to the vertical direction, and the locking holes on the surface of the support plate 46 will contact the ground. The horizontal pins 44 are aligned, and then the operator loosens the vertical plate 45. The vertical plate 45 drives the horizontal pins 44 to move backward under the tension of the spring, so that the horizontal pins 44 are inserted into the locking holes on the surface of the support plate 46, thereby fixing the support plate 46. Then the operator pulls the pull plate 41, so that the pull plate 41 drives the positioning pins 40 to move a certain distance, and then the adjustment sleeve 38 is inserted from the top of the adjustment frame 37, and the adjustment frame 37 drives the air intake hood 362 to the wall grinding position, and then the pull plate 41 is loosened. The pull plate 41 drives the positioning pins 40 to insert into the positioning grooves on the surface of the adjustment frame 37 under the tension of the spring, and the position of the air intake hood 362 can be fixed; Then the operator transmits a start electrical signal to the PLC controller 3 through the controller. After receiving the start electrical signal, the PLC controller 3 will control the first high-pressure air pump 9, the second high-pressure air pump 18 and the control motor 351 to work simultaneously. The control motor 351 drives the middle rotating tube 11 to rotate through the bevel gear transmission assembly (the output end of the control motor 351 is fixedly connected with a bevel gear, and the outer wall of the rotating tube 11 is fixedly sleeved with a bevel gear ring that meshes with the bevel gear). The middle rotating tube 11 drives the front and rear rotating tubes 11 to rotate through the belt drum transmission assembly 352 (the outer walls of the three rotating tubes 11 are fixedly sleeved with a double-groove belt drum, and the outer shells of two adjacent double-groove belt drums are provided with the same belt). The rotating tube 11 will drive the cylinder 101 and the internal filter screen 17 to rotate together. The first high-pressure air pump 9 extracts the gas inside the air duct 6, and the second high-pressure air pump 18 transports the filtered gas in the air duct 6 to the square tube 19 through the suction end 54, and transports it to the circular tube 19 through the air supply pipe 20. In the cylinder 101, the gas is then ejected from the air supply pipe 20 through the jet head 21. After the first high-pressure air pump 9 and the second high-pressure air pump 18 extract the gas inside the air duct 6, the air pressure inside the air duct 6 will be greatly reduced, and the external gas will carry the dust from the operator grinding the wall through the air intake hood 362 and the air intake pipe 361 to the mobile box 1. Since the mesh of the filter screen 17 inside the three filter components 10 becomes smaller from right to left, the particles will be filtered in sequence according to the diameter size. The largest particles will be filtered by the filter screen 17 on the far right, and the smaller particles will be filtered by the filter screen 17 in the middle. The remaining particles will be filtered by the filter screen 17 on the left. The filtered particles will adhere to the surface of the filter screen 17. When the cylinder 101 drives the filter screen 17 to rotate to the bottom of the rotating tube 11, the high-speed airflow ejected from the jet head 21 will recoil the filter screen 17, so that the particles attached to the outside of the filter screen 17 fall from the dust removal port to the bottom of the lower block 5 for storage; When the mesh of the filter 17 becomes larger due to wear, its permeability will become larger, and the resistance of the airflow passing through the worn filter 17 will become smaller, while the airflow resistance of other filters 17 with normal meshes will be relatively large. Therefore, when the airflow passes through the worn filter 17, the wind resistance of the worn filter 17 will become smaller, and the distance that the worn filter 17 drives the conductive block 31 to move to the left through the support pin 15 and the spring plate 16 will be shortened. In the process of moving to the left, the conductive block 31 will contact the resistor plate 32. The left end of the resistor plate 32 is electrically connected to the PLC controller 3. After the distance that the conductive block 31 moves to the left becomes shorter, the length of the resistor plate 32 connected to the circuit of the PLC controller 3 becomes longer, and the resistor connected to the circuit of the PLC controller 3 becomes When the external voltage remains unchanged, the current transmitted to the circuit of the PLC controller 3 becomes smaller. When the filter 17 moves to the middle position of the air duct 6, the conductive block 33 corresponding to the resistor plate 32 will contact the conductive frame 34, and the current signal will be transmitted to the PLC controller 3 through the conductive block 33 and the conductive frame 34. The PLC controller 3 will detect the electrical signals transmitted by each conductive block 33 during the rotation of the cylinder 101. When it is detected that the electrical signal transmitted by a certain conductive block 33 is smaller than the electrical signals of other conductive blocks 33, the corresponding micro-electric push rod 222 will be immediately controlled to reciprocate once through the conductive frame 34 and the conductive block 33, and the micro-electric push rod 222 will drive the piston plate 23 to move toward the direction close to the baffle 24. The air pressure between the piston plate 23 and the baffle plate 24 increases, and the gas is transported to the space between the baffle plate 24 and the piston seat 27 through the vent hole 26 on the surface of the baffle plate 24 and the one-way valve, so that the air pressure between the baffle plate 24 and the piston seat 27 increases. Under the action of the air pressure, the external gas is transported to the right side of the piston plate 23 through the air supply pipe 25 and the one-way valve. The piston seat 27 moves toward the baffle plate 24 under the action of the air pressure, and a part of the gas between the baffle plate 24 and the piston seat 27 is slowly discharged through the small hole 29. When the micro-electric push rod 222 drives the piston plate 23 to move back, the piston plate 23 squeezes the space on the other side, so that the air pressure in the space on the other side increases, so that the gas in the space on the other side passes through the vent hole 26 on the surface of the piston plate 23. The hole 26 and the one-way valve are transmitted to between the piston plate 23 and the baffle 24. When the micro-electric push rod 222 reciprocates three times within the set time, the piston seat 27 will squeeze the trigger switch 28, and the trigger switch 28 will transmit an electrical signal to the PLC controller 3. After receiving the electrical signal, the PLC controller 3 will drive the indicator inside the control box 2 to work (the indicator is a buzzer), thereby reminding the operator that the filter 17 inside the dust removal equipment is worn, and the PLC controller 3 will also control the corresponding fixed indicator light 30 to work, which is used to assist the operator to quickly find the worn filter 17, and a transparent area is provided on the rear side of the mobile box 1 to facilitate the socket personnel to see which group of filter components 10 needs to be replaced.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmental protection device for construction, comprising a mobile box (1) and a control box (2) arranged on the upper side wall of the mobile box (1), wherein a PLC controller (3) is arranged inside the control box (2), characterized in that: Also includes: Three filter assemblies (10) are arranged inside a mobile box (1) through a power assembly (35); an upper block (4) and a lower block (5) are provided on the inner wall of the mobile box (1); an air duct (6) is formed between the upper block (4) and the lower block (5); the three filter assemblies (10) are located inside the air duct (6); three dust removal ports (7) are provided on the side wall of the lower block (5); a dust exhaust pipe (8) is connected to the lower side wall of the mobile box (1), and a control valve is provided inside the dust exhaust pipe (8); An air intake assembly (36) is connected to the right side wall of the mobile box (1) and is used to absorb dust from grinding. A first high-pressure air pump (9) is fixedly connected to the left side wall of the mobile box (1). The air intake end of the first high-pressure air pump (9) is connected to the air duct (6). The filter assembly (10) comprises a cylinder (101) and two mounting plates (102). The two mounting plates (102) are connected to the side walls of the mobile box (1) at the front and rear sides via fixings. The side wall of the mounting plate (102) at the rear side is rotatably connected to a rotating tube (11). The front end of the rotating tube (11) is located in the moving box (1), the cylinder (101) and the front end of the rotating tube (11) are fixedly connected, the cylinder (101) is rotatably connected to the rear wall of the front mounting plate (102) via a rotating shaft, the side wall of the cylinder (101) is provided with a plurality of filter ports (12), the inner wall of the cylinder (101) is provided with a plurality of mounting grooves (13), the inner wall of the mounting groove (13) is fixedly connected with a support cylinder (14), a support pin (15) is inserted into the support cylinder (14), and the support pin (15) is connected to the support cylinder (14). One end of the support pins (15) located in the support cylinder (14) is fixedly connected to a spring plate (16), and the same spring is fixedly connected between the spring plate (16) and the support cylinder (14). One end of two adjacent support pins (15) away from the support cylinder (14) is fixedly connected to a same filter screen (17) located outside the filter port (12) through a fixing member, and the filter screen (17) is located inside the cylinder (101). The rear side wall of the mobile box (1) is fixedly connected to a second high-pressure air pump (18), and the pumping capacity of the second high-pressure air pump (18) is The suction end (54) is connected to the air duct (6) inside the mobile box (1) and is located on the left side of the filter assembly (10); the air outlet end of the second high-pressure air pump (18) is connected to a square tube (19); the upper wall of the square tube (19) is connected to an air supply pipe (20) via a connector; the upper end of the air supply pipe (20) passes through the rotating tube (11) and is located inside the cylinder (101); the lower wall of the air supply pipe (20) is connected to a plurality of nozzles (21); and a plurality of induction assemblies (22) are fixedly connected to the inside of the cylinder (101).

2. The environmental protection equipment for construction according to claim 1, characterized in that: The sensing assembly (22) comprises a sensing cylinder (221) and a micro electric push rod (222); the sensing cylinder (221) is fixedly connected to the inner wall of the cylinder (101); the micro electric push rod (222) is fixedly connected to the inner wall of the sensing cylinder (221); the moving end of the micro electric push rod (222) is fixedly connected to a piston plate (23); the inner wall of the sensing cylinder (221) is fixedly connected to a baffle (24); and the upper side wall of the sensing cylinder (221) is connected to an air delivery pipe (25). The side walls of the piston plate (23) and the baffle plate (24) are both provided with ventilation holes (26), and the ventilation holes (26) and the air delivery pipe (25) are both provided with one-way valves. The side wall of the sensing cylinder (221) away from the micro electric push rod (222) is fixedly connected to a piston seat (27) via a spring, and an air pressure hole is provided on the upper side wall of the sensing cylinder (221). A trigger switch (28) is fixedly connected to the upper inner wall of the sensing cylinder (221), and the trigger switch (28) is located on the piston seat (27). ), a small hole (29) is opened on the lower side wall of the sensing cylinder (221) and is located between the piston seat (27) and the baffle (24); a plurality of prompt lights (30) are inlaid on the outer wall of the cylinder (101); the trigger switch (28) is electrically connected to the corresponding prompt lights (30) and the prompter inside the control box (2) through the PLC controller (3); a conductive block (31) is fixedly connected to the side wall of the spring plate (16) located above the same group; and the support cylinder (14) is provided with a plurality of warning lights (30) and a warning device (30) in the control box (2). A resistor plate (32) is embedded in the inner wall, the conductive block (31) is electrically connected to an external power source, a conductive block (33) is fixedly connected to the inner wall of the filter port (12), one end of the resistor plate (32) away from the conductive block (31) is electrically connected to the conductive block (33), a plurality of conductive frames (34) are fixedly connected to the upper inner wall of the air duct (6), the conductive block (33) contacts the conductive frame (34) during rotation, and the conductive frame (34) is electrically connected to the PLC controller (3).

3. The environmental protection equipment for construction according to claim 1, characterized in that: The power assembly (35) comprises a control motor (351) and a belt drum transmission assembly (352); the control motor (351) is fixedly connected to the rear wall of the middle rear mounting plate (102); the control motor (351) is transmission-connected to the middle rotating tube (11) via a bevel gear transmission assembly; and the three rotating tubes (11) are transmission-connected to each other via the belt drum transmission assembly (352).

4. The environmental protection equipment for construction according to claim 1, characterized in that: The air intake assembly (36) comprises an air intake pipe (361) and an air intake cover (362); the left end of the air intake pipe (361) is connected to the mobile box (1) and is located in the air duct (6); the right end of the air intake pipe (361) is connected to the air intake cover (362); an adjustment frame (37) is placed on the rear side of the air intake cover (362); an adjustment sleeve (38) sleeved on the outside of the adjustment frame (37) is fixedly connected to the rear side wall of the air intake cover (362); a positioning hole (39) is formed on the side wall of the adjustment sleeve (38); a positioning pin (40) is inserted into the positioning hole (39); a positioning groove matching the positioning pin (40) is formed on the side wall of the adjustment frame (37); the positioning pin (40) is inserted into the positioning hole (39); and a positioning groove matching the positioning pin (40) is formed on the side wall of the adjustment frame (37). ) is fixedly connected to a pull plate (41) at the rear end, a same spring is fixedly connected between the pull plate (41) and the adjustment sleeve (38), a placement frame (42) is fixedly connected to the lower end of the adjustment frame (37), an inner wall of the placement frame (42) is rotatably connected to a bottom plate (43), a front side wall of the placement frame (42) is provided with a transverse hole, and a transverse pin (44) is inserted into the transverse hole, a front end of the transverse pin (44) is fixedly connected to a vertical plate (45), a same spring is fixedly connected between the vertical plate (45) and the placement frame (42), an upper side wall of the bottom plate (43) is fixedly connected to a support plate (46), and a side wall of the support plate (46) is provided with a locking hole that matches the transverse pin (44).

5. The environmental protection equipment for construction according to claim 1, characterized in that: The side walls of the upper block (4) and the lower block (5) on the opposite side are each provided with an arc-shaped groove (47), and the inner walls of the two arc-shaped grooves (47) are both fixedly connected with a rubber strip (48).

6. The environmental protection equipment for construction according to claim 2, characterized in that: A rubber ring (49) is fixedly connected to the front side wall of the cylinder (101), a sealing ring (50) is fixedly connected to the rear side wall of the cylinder (101), and a connecting ring (51) is fixedly connected to the front side wall of the mounting plate (102) at the rear side. The connecting ring (51) and the sealing ring (50) are rotatably connected via a sealing bearing.

7. The environmental protection equipment for construction according to claim 1, characterized in that: A handle (52) is fixedly connected to the left side wall of the moving box (1), self-locking wheels are fixedly connected to the four corners of the lower side wall of the moving box (1), and a storage frame (53) is fixedly connected to the right outer wall of the moving box (1).

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