CN217667423U

CN217667423U - Steel plate positioning device beneficial to welding

Info

Publication number: CN217667423U
Application number: CN202221257053.8U
Authority: CN
Inventors: 彭鹏铭; 郭鑫; 杨俊彪; 黎家硕; 罗孟林; 张文杰
Original assignee: Cccc Third Highway Engineering Bureau Co Fourth Engineering Branch; CCCC Third Highway Engineering Co Ltd
Current assignee: Cccc Third Highway Engineering Bureau Co Fourth Engineering Branch; CCCC Third Highway Engineering Co Ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-10-28
Anticipated expiration: 2032-05-24

Abstract

The utility model discloses a do benefit to welded steel sheet positioner, including the processing platform, the top fixed mounting of processing platform has the fixing base, and the top fixed mounting of fixing base has U type seat, and the top of fixing base is provided with first mounting panel, and the bottom fixed mounting of first mounting panel has articulated seat, and articulated seat rotates with U type seat to be connected, and screw fixed mounting has first electro-magnet at the top of first mounting panel, is provided with angle adjustment mechanism on the fixing base. The utility model relates to a rationally, be convenient for adsorb two steel sheets and fix, can enough carry out horizontal welding operation to two steel sheets, can carry out perpendicular welding operation to two steel sheets again, increased application scope, the practicality is good, can carry out effectual purification treatment to the smoke and dust that produces in the welding process moreover, can effectual reduction to the pollution of surrounding environment, can effectually improve the air quality of surrounding environment, reduce the injury that causes the human body.

Description

Steel plate positioning device beneficial to welding

Technical Field

The utility model relates to a steel sheet positioning equipment technical field specifically is a do benefit to welded steel sheet positioner.

Background

Nowadays, the use of steel sheet is more extensive, when using steel sheet material preparation mechanical equipment or machine parts or other article, often need with carrying out welding process between two steel sheets, when carrying out welding process to two steel sheets, can use steel sheet positioner, utilize steel sheet positioner to fix two steel sheets to need the welded position to laminate the contact with two steel sheets, can make things convenient for the staff to carry out welding jobs.

However, the steel plate positioning device used commonly is only provided with one of the fixing modes of horizontally fixing two steel plates or vertically fixing two steel plates, and has the advantages of single function, unsatisfactory use effect and low practicability.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a do benefit to welded steel sheet positioner, solved steel sheet positioner when using, the function singleness, the result of use is unsatisfactory, the practicality is lower, add man-hour to two steel sheets horizontal welding or vertical welding, just need purchase two kinds of different steel sheet positioner, the economic cost has been increased, and do not have the function that carries out purification treatment to the smoke and dust that produces among the welding process, can cause operational environment pollution among the welding process, reduce the air quality among the operational environment, also can cause the problem of injury to the human body.

(II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a do benefit to welded steel sheet positioner, including the processing platform, the top fixed mounting of processing platform has the fixing base, the top fixed mounting of fixing base has U type seat, the top of fixing base is provided with first mounting panel, the bottom fixed mounting of first mounting panel has articulated seat, articulated seat rotates with U type seat to be connected, there is first electro-magnet at the top of first mounting panel through screw fixed mounting, be provided with angle adjustment mechanism on the fixing base, the rectangular channel that is located the fixing base right side is seted up at the top of processing platform, slidable mounting has the sliding seat in the rectangular channel, the top of sliding seat extends to outside the rectangular channel and fixed mounting has vertical electric putter, vertical electric putter's output shaft fixed mounting has the second mounting panel, there is the second electro-magnet at the top of second mounting panel through screw fixed mounting, the top fixed mounting of processing platform has horizontal electric putter that is located the rectangular channel right side, horizontal electric putter's output shaft end and the right side wall fixed connection of sliding seat, the processing bench is provided with flue gas purification mechanism.

Preferably, angle adjustment mechanism includes the lead screw, the slide, the connecting rod, connecting seat and motor, the spout has been seted up at the top of fixing base, the lead screw rotates and installs in the spout, the slide thread bush is established on the lead screw, the top of slide extends to outside the spout, the one end of connecting rod rotates with the top of slide to be connected, connecting seat fixed mounting is in the bottom of first mounting panel, the one end that the slide was kept away from to the connecting rod rotates with the connecting seat to be connected, the connecting rod sets up for the slope, motor fixed mounting is in the left side of fixing base, the left end of lead screw extend to the fixing base outside and with the output shaft end fixed connection of motor.

Preferably, a limiting groove is formed in the inner wall of the bottom of the sliding groove, a limiting rod is fixedly mounted at the bottom of the sliding seat, and the limiting rod is slidably mounted in the limiting groove.

Preferably, a transverse guide rod is fixedly installed in the rectangular groove, and the movable seat is sleeved on the transverse guide rod in a sliding manner.

Preferably, the flue gas purification mechanism includes L type frame, smoking pipe, smoking cover, dust absorption fan, exhaust pipe, purifying box, dust filtering net and active carbon granule, L type frame and the equal fixed mounting of dust absorption fan are at the top of processing platform, smoking pipe passes through the pipe strap installation to be fixed on L type frame, smoking cover fixed mounting is at the left end of smoking pipe, the one end that smoking pipe kept away from the smoking cover and the suction end fixed connection of dust absorption fan, the one end of exhaust pipe and the discharge end fixed connection of dust absorption fan, purifying box fixed mounting is on the right side wall of processing platform, the one end that dust absorption fan was kept away from to the exhaust pipe extends to the purifying box in, dust filtering net fixed mounting is in the purifying box, active carbon granule is placed in the purifying box and is located the right side of dust filtering net.

Preferably, the inner wall of the right side of the purifying box is provided with an air outlet, and a material blocking filter screen is fixedly arranged in the air outlet.

Preferably, a first cleaning opening and a second cleaning opening are formed in the inner wall of the top of the purifying box, the first cleaning opening is located on the left side of the dust filter screen, the second cleaning opening is located on the right side of the dust filter screen, a first cleaning door and a second cleaning door are fixedly mounted at the top of the purifying box through screws, the first cleaning door is matched with the first cleaning opening, and the second cleaning door is matched with the second cleaning opening.

(III) advantageous effects

The utility model provides a do benefit to welded steel sheet positioner. The method has the following beneficial effects:

(1) This kind of do benefit to welded steel sheet positioner, through the magnetic force effect who utilizes first electro-magnet and second electro-magnet circular telegram to produce, can adsorb two steel sheets fixedly respectively, through utilizing angle adjustment mechanism, can adjust the angle of first mounting panel and first electro-magnet, can adjust first mounting panel and first electro-magnet to vertical state or horizontal state according to the welding needs, through using vertical electric putter, can adjust the high position of second electro-magnet, utilize horizontal electric putter, can adjust the horizontal position of second electro-magnet, and then be convenient for carry out the horizontal welding operation to two steel sheets promptly, be convenient for again carry out the vertical welding operation to two steel sheets, the practicality is good, excellent in use effect.

(2) This do benefit to welded steel sheet positioner, through the connection cooperation that utilizes gas cleaning mechanism, can carry out effectual purification treatment to the smoke and dust that produces among the steel sheet welding process, and then can reduce the pollution to the surrounding environment, improve the air quality of surrounding environment, reduce the injury that causes the human body.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic sectional view of the front view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged schematic view of a portion B in fig. 2.

In the figure: 1. a processing table; 2. a fixed seat; 3. a U-shaped seat; 4. a first mounting plate; 5. a hinged seat; 6. a first electromagnet; 7. a chute; 8. a screw rod; 9. a slide base; 10. a connecting rod; 11. a connecting seat; 12. a motor; 13. a rectangular groove; 14. a movable seat; 15. a vertical electric push rod; 16. a second mounting plate; 17. a second electromagnet; 18. a transverse electric push rod; 19. an L-shaped frame; 20. a smoking pipe; 21. a smoke exhaust hood; 22. a dust collection fan; 23. a smoke exhaust pipe; 24. a purification box; 25. a dust filter screen; 26. activated carbon particles; 27. an air outlet; 28. keep off material filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the present invention, and in addition, in the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

As shown in fig. 1-4, the utility model provides a technical solution: a steel plate positioning device beneficial to welding comprises a processing table 1, a fixed seat 2 is fixedly installed at the top of the processing table 1, a U-shaped seat 3 is fixedly installed at the top of the fixed seat 2, a first installation plate 4 is arranged above the fixed seat 2, a hinged seat 5 is fixedly installed at the bottom of the first installation plate 4, the hinged seat 5 is rotatably connected with the U-shaped seat 3, a first electromagnet 6 is fixedly installed at the top of the first installation plate 4 through a screw, a steel plate can be adsorbed and fixed by utilizing the magnetic force generated when the first electromagnet 6 is electrified, an angle adjusting mechanism is arranged on the fixed seat 2, the angles of the first installation plate 4 and the first electromagnet 6 can be adjusted by arranging the angle adjusting mechanism, the first installation plate 4 and the first electromagnet 6 can be adjusted to be in a vertical state or a horizontal state, a rectangular groove 13 positioned at the right side of the fixed seat 2 is formed at the top of the processing table 1, a movable seat 14 is slidably mounted in the rectangular groove 13, the top of the movable seat 14 extends out of the rectangular groove 13 and is fixedly provided with a vertical electric push rod 15, the output shaft end of the vertical electric push rod 15 is fixedly provided with a second mounting plate 16, the top of the second mounting plate 16 is fixedly provided with a second electromagnet 17 through a screw, the top of the processing table 1 is fixedly provided with a horizontal electric push rod 18 positioned at the right side of the rectangular groove 13, the output shaft end of the horizontal electric push rod 18 is fixedly connected with the right side wall of the movable seat 14, the height position of the second electromagnet 17 can be adjusted by utilizing the vertical electric push rod 15, the horizontal position of the second electromagnet 17 can be adjusted by utilizing the horizontal electric push rod 18, the steel plate can be adsorbed and fixed by utilizing the magnetic force generated when the second electromagnet 17 is electrified, the processing table 1 is provided with a flue gas purification mechanism, by arranging the flue gas purification mechanism, the smoke dust generated in the welding process of the steel plate can be purified, so that the pollution to the surrounding environment can be reduced, the air quality of the surrounding environment is improved, and the harm to a human body is reduced.

In this embodiment, angle adjustment mechanism includes lead screw 8, slide 9, connecting rod 10, connecting seat 11 and motor 12, spout 7 has been seted up at the top of fixing base 2, lead screw 8 rotates to be installed in spout 7, slide 9 threaded sleeve is established on lead screw 8, the top of slide 9 extends outside spout 7, the one end of connecting rod 10 rotates with the top of slide 9 to be connected, connecting seat 11 fixed mounting is in the bottom of first mounting panel 4, the one end that slide 9 was kept away from to connecting rod 10 rotates with connecting seat 11 to be connected, connecting rod 10 is the slope setting, motor 12 fixed mounting is in the left side of fixing base 2, the left end of lead screw 8 extends outside fixing base 2 and with the output shaft fixed connection of motor 12, can drive lead screw 8 through utilizing motor 12 to rotate, utilize the threaded connection cooperation of lead screw 8 and slide 9, steerable slide 9 is horizontal slip in spout 7, can change the inclination of connecting rod 10, and then utilize connecting rod 10 can promote first mounting panel 4 and first electro-magnet 6 to carry out angle adjustment.

In this embodiment, a limiting groove is formed in the inner wall of the bottom of the sliding groove 7, a limiting rod is fixedly mounted at the bottom of the sliding seat 9, the limiting rod is slidably mounted in the limiting groove, and the sliding stroke of the sliding seat 9 can be limited by the sliding connection and matching of the limiting rod in the limiting groove.

In this embodiment, a transverse guide rod is fixedly installed in the rectangular groove 13, the movable seat 14 is slidably sleeved on the transverse guide rod, and the sliding direction of the movable seat 14 can be guided by the transverse guide rod.

In this embodiment, the flue gas purification mechanism includes an L-shaped frame 19, a smoke absorbing pipe 20, a smoke absorbing cover 21, a dust absorbing fan 22, a smoke discharging pipe 23, a purification box 24, a dust filtering net 25 and activated carbon particles 26, wherein the L-shaped frame 19 and the dust absorbing fan 22 are all fixedly mounted on the top of the processing table 1, the smoke absorbing pipe 20 is fixedly mounted on the L-shaped frame 19 through a pipe clamp, the smoke absorbing cover 21 is fixedly mounted at the left end of the smoke absorbing pipe 20, one end of the smoke absorbing pipe 20 away from the smoke absorbing cover 21 is fixedly connected with the suction end of the dust absorbing fan 22, one end of the smoke discharging pipe 23 is fixedly connected with the discharge end of the dust absorbing fan 22, the purification box 24 is fixedly mounted on the right side wall of the processing table 1, one end of the smoke discharging pipe 23 away from the dust absorbing fan 22 extends into the purification box 24, the dust filtering net 25 is fixedly mounted in the purification box 24, the activated carbon particles 26 are placed in the purification box 24 and positioned at the right side of the dust filtering net 25, and the dust particles generated during operation can be effectively purified by absorbing and removing peculiar smell of the smoke particles.

In this embodiment, seted up venthole 27 on the right side inner wall of purifying box 24, fixed mounting has the material of keeping off filter screen 28 in the venthole 27, and through setting up venthole 27, the convenient gaseous discharge who purifies utilizes material of keeping off filter screen 28, can block the interception to active carbon granule 26, avoids active carbon granule 26 to discharge from venthole 27.

In this embodiment, first clearance mouth and second clearance mouth have been seted up on the top inner wall of purifying box 24, first clearance mouth is located dirt filtrating screen 25 left side, second clearance mouth is located dirt filtrating screen 25 right side, there are first clearance door and second clearance door at purifying box 24's top through screw fixed mounting, first clearance door and first clearance mouth looks adaptation, second clearance door and second clearance mouth looks adaptation, through setting up first clearance mouth and first clearance door, be convenient for clear up out the impurity granule of interception in purifying box 24, and conveniently to dirt filtrating screen 25 surface cleaning, through setting up second clearance mouth and second clearance door, be convenient for change active carbon granule 26.

In this embodiment, a multi-control switch is installed on the processing table 1, the motor 12, the vertical electric push rod 15, the horizontal electric push rod 18, the first electromagnet 6, the second electromagnet 17, the dust collection fan 22 and the multi-control switch are electrically connected with an external power line through a wire to form a loop, the motor 12 adopts a reversible motor, the multi-control switch can control the start, stop and reversible rotation of the motor 12, the vertical electric push rod 15 and the horizontal electric push rod 18 can be respectively controlled to start, stop and reset, and the first electromagnet 6, the second electromagnet 17 and the dust collection fan 22 can be respectively controlled to start and close.

When the device is used, a power supply is switched on, the motor 12 drives the screw rod 8 to rotate in the forward direction by starting the motor 12 to rotate in the forward direction, the sliding seat 9 drives the connecting rod 10 to gradually move rightwards, the connecting rod 10 rotates at the joint of the connecting rod 10, the connecting rod 10 pushes the first mounting plate 4 and the first electromagnet 6 to gradually incline upwards, the first mounting plate 4 and the first electromagnet 6 can be adjusted to be in a vertical state, similarly, after the motor 12 is started to rotate in the reverse direction, the motor 12 drives the screw rod 8 to rotate in the reverse direction, the sliding seat 9 drives the connecting rod 10 to gradually move leftwards, the connecting rod 10 rotates at the joint of the connecting rod 10, the connecting rod 10 gradually inclines downwards, the connecting rod 10 drives the first mounting plate 4 and the first electromagnet 6 to gradually incline downwards, the first mounting plate 4 and the first electromagnet 6 can be adjusted to be in a horizontal state, and the vertical electric push rod 15 is started to work, the vertical electric push rod 15 pushes the second mounting plate 16 and the second electromagnet 17 to vertically rise, the vertical electric push rod 15 is started to reset, the vertical electric push rod 15 pushes the second mounting plate 16 and the second electromagnet 17 to vertically descend, so that the height position of the second electromagnet 17 can be conveniently adjusted, the transverse electric push rod 18 is started to work, the transverse electric push rod 18 pushes the movable seat 14, the vertical electric push rod 15, the second mounting plate 16 and the second electromagnet 17 to horizontally move leftwards, the transverse electric push rod 18 is started to reset, the transverse electric push rod 18 pushes the movable seat 14, the vertical electric push rod 15, the second mounting plate 16 and the second electromagnet 17 to horizontally move rightwards, so that the horizontal position of the second electromagnet 17 can be conveniently adjusted, when two steel plates are required to be horizontally welded, the first mounting plate 4 and the first electromagnet 6 are adjusted to be in a horizontal state by starting the motor 12 to reversely rotate, by starting the first electromagnet 6 and the second electromagnet 17 to work, one steel plate can be adsorbed and fixed by utilizing the magnetic action generated by electrifying the first electromagnet 6, the other steel plate can be adsorbed and fixed by utilizing the magnetic action generated by electrifying the second electromagnet 17, then the vertical electric push rod 15 and the transverse electric push rod 18 are respectively started, the height position and the horizontal position of the steel plate adsorbed and fixed on the second electromagnet 17 can be adjusted, when the steel plate adsorbed and fixed on the second electromagnet 17 is adjusted to be in contact with the position, needing to be welded, of the steel plate adsorbed and fixed on the first electromagnet 6, the vertical electric push rod 15 and the transverse electric push rod 18 are stopped to work, the two steel plates can be horizontally welded, when the two steel plates need to be vertically welded, the first mounting plate 4 and the first electromagnet 6 are adjusted to be in a vertical state by starting the motor 12 to rotate forwards, the first electromagnet 6 and the second electromagnet 17 are started to work, the two steel plates are respectively adsorbed and fixed, then the vertical electric push rod 15 and the horizontal electric push rod 18 are respectively started, the steel plates adsorbed and fixed on the second electromagnet 17 are adjusted to be in contact with the positions, needing to be welded, of the steel plates adsorbed and fixed on the first electromagnet 6, the vertical electric push rod 15 and the horizontal electric push rod 18 are stopped to work, the two steel plates can be vertically welded, the operation is convenient and fast, the practicability is good, in the process of welding the steel plates, the dust suction fan 22 is started to run, the dust suction fan 22 generates suction force, the smoke generated in the welding process can sequentially pass through the smoke suction hood 21, the smoke suction pipe 20, the dust suction fan 22 and the smoke exhaust pipe 23 to enter the purification box 24, and the dust filter screen 25 is used to intercept and filter impurity particles in the smoke, utilize active carbon particle 26, can adsorb purification to tiny particle in the smoke and dust, peculiar smell etc. stop after the purification and discharge from venthole 27 again, and then can carry out effectual purification treatment to the smoke and dust that produces, can effectual reduction to the pollution of surrounding environment, can effectual improvement surrounding environment's air quality, reduce the injury that causes the human body, after the weldment work is accomplished, stop dust absorption fan 22 work, the power of disconnection first electro-magnet 6 and second electro-magnet 17 for magnetic force on first electro-magnet 6 and the second electro-magnet 17 disappears, can take off the steel sheet that welds well, the content that does not make detailed description in this specification all belongs to the well-known prior art of the professional in this field simultaneously.

To sum up, this do benefit to welded steel sheet positioner is convenient for adsorb fixedly to two steel sheets, can enough carry out horizontal welding operation to two steel sheets, can carry out perpendicular welding operation again to two steel sheets, has increased application scope, and the practicality is good, can carry out effectual purification treatment to the smoke and dust that produces in the welding process moreover, can effectual reduction to the pollution of surrounding environment, can effectually improve the air quality of surrounding environment, the injury that the reduction led to the fact the human body.

Claims

1. The utility model provides a do benefit to welded steel sheet positioner, includes processing platform (1), its characterized in that: the top of the processing table (1) is fixedly provided with a fixed seat (2), the top of the fixed seat (2) is fixedly provided with a U-shaped seat (3), a first mounting plate (4) is arranged above the fixed seat (2), the bottom of the first mounting plate (4) is fixedly provided with a hinged seat (5), the hinged seat (5) is rotationally connected with the U-shaped seat (3), the top of the first mounting plate (4) is fixedly provided with a first electromagnet (6) through a screw, the fixed seat (2) is provided with an angle adjusting mechanism, the top of the processing table (1) is provided with a rectangular groove (13) positioned at the right side of the fixed seat (2), a movable seat (14) is arranged in the rectangular groove (13) in a sliding way, the top of the movable seat (14) extends out of the rectangular groove (13) and is fixedly provided with a vertical electric push rod (15), a second mounting plate (16) is fixedly arranged at the output shaft end of the vertical electric push rod (15), the top of the second mounting plate (16) is fixedly provided with a second electromagnet (17) through a screw, the top of the processing table (1) is fixedly provided with a transverse electric push rod (18) positioned at the right side of the rectangular groove (13), the output shaft end of the transverse electric push rod (18) is fixedly connected with the right side wall of the movable seat (14), and a smoke purification mechanism is arranged on the processing table (1).

2. A weld-facilitating steel plate positioning device as set forth in claim 1, wherein: angle adjustment mechanism includes lead screw (8), slide (9), connecting rod (10), connecting seat (11) and motor (12), spout (7) have been seted up at the top of fixing base (2), lead screw (8) rotate to be installed in spout (7), slide (9) thread bush is established on lead screw (8), the top of slide (9) extends to outside spout (7), the one end of connecting rod (10) with the top of slide (9) is rotated and is connected, connecting seat (11) fixed mounting be in the bottom of first mounting panel (4), the one end that slide (9) were kept away from in connecting rod (10) with connecting seat (11) are rotated and are connected, connecting rod (10) set up for the slope, motor (12) fixed mounting be in the left side of fixing base (2), the left end of lead screw (8) extend to outside fixing base (2) and with the output shaft end fixed connection of motor (12).

3. A weld-facilitating steel plate positioning device as set forth in claim 2, wherein: the limiting groove is formed in the inner wall of the bottom of the sliding groove (7), a limiting rod is fixedly mounted at the bottom of the sliding seat (9), and the limiting rod is slidably mounted in the limiting groove.

4. A weld-facilitating steel plate positioning device as set forth in claim 1, wherein: a transverse guide rod is fixedly installed in the rectangular groove (13), and the movable seat (14) is sleeved on the transverse guide rod in a sliding mode.

5. A weld-facilitating steel plate positioning device as set forth in claim 1, wherein: flue gas purification mechanism includes L type frame (19), smoking pipe (20), smoke absorption cover (21), dust absorption fan (22), discharge fume pipe (23), purifying box (24), dust filtration net (25) and active carbon granule (26), L type frame (19) with the equal fixed mounting of dust absorption fan (22) is in the top of processing platform (1), smoke absorption pipe (20) are fixed through the pipe strap installation on L type frame (19), smoke absorption cover (21) fixed mounting be in the left end of smoke absorption pipe (20), smoke absorption pipe (20) keep away from the one end of smoke absorption cover (21) with the suction end fixed connection of dust absorption fan (22), discharge fume the one end of pipe (23) with the exhaust end fixed connection of dust absorption fan (22), purifying box (24) fixed mounting be in on the right side wall of processing platform (1), the one end that dust absorption fan (22) was kept away from to smoke absorption pipe (23) extends to in purifying box (24), filter net (25) fixed mounting be in purifying box (24), active carbon granule (26) are located the purifying box (24) right side.

6. A weld-facilitating steel plate positioning device as set forth in claim 5, wherein: the right side inner wall of purifying box (24) has been seted up venthole (27), fixed mounting has material stopping filter screen (28) in venthole (27).

7. A steel plate positioning device facilitating welding according to claim 5, wherein: first clearance mouth and second clearance mouth have been seted up on the top inner wall of purifying box (24), first clearance mouth is located strain dirt net (25) left side, the second clearance mouth is located strain dirt net (25) right side, there are first clearance door and second clearance door at the top of purifying box (24) through screw fixed mounting, first clearance door with first clearance mouth looks adaptation, the second clearance door with second clearance mouth looks adaptation.