Construction dust treatment device

Abstract

The application discloses a construction dust treatment device and belongs to the technical field of dust treatment. The construction dust treatment device comprises a box body, the inside of the box body is divided into a cleaning cavity and a filtering cavity through a partition plate, two filter screens are vertically arranged in the filtering cavity, the two filter screens slide into the cleaning cavity through sliding assemblies, a transposition assembly for driving the two filter screens to alternately slide is arranged on the top of the box body, and the transposition assembly comprises a square sliding rod and two first gears which are slidingly arranged on the surface of the square sliding rod. The filter cavity and the cleaning cavity are arranged, so that dust is prevented from being blown onto the surface of the filter screen again when the filter screen is cleaned, the cleaning effect is affected, the two filter screens are sequentially cleaned in the cleaning cavity, the purpose of alternate cleaning is achieved, one filter screen is kept in the filtering cavity for filtering work at all times, and the dust treatment device can achieve the purpose of continuous dust suction, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust treatment, and in particular to a construction dust treatment device. BACKGROUND

[0002] In municipal environmental protection, dust treatment has always been an unavoidable problem. In the process of construction, such as milling pavement and curbstone processing, a large amount of dust will be generated on the construction site. The dust in the air is easy to be inhaled into the human body when workers breathe, thereby causing harm to the human body. In order to reduce the dust generated in the process of milling pavement, curbstone or other construction work that is easy to generate a large amount of dust, dust treatment equipment is used.

[0003] The existing dust treatment equipment usually uses negative pressure to suck the generated dust and filters it through a filter screen. The filtered air is discharged to the outside. Since a large amount of dust is generated in the construction process, the filter screen is easily blocked. In the prior art, a cleaning brush is used to clean the dust on the surface of the filter screen, so that the filter screen can be continuously used. However, the dust cleaned by the cleaning brush falls below the filter screen. Since the dust treatment device continuously performs dust removal work, the dust below or cleaned by the cleaning brush is easy to be blown by the airflow again, which causes the filter screen to be blocked too quickly. The cleaning brush cannot be cleaned in time, which affects the airflow and cannot maintain effective dust removal effect. SUMMARY

[0004] The purpose of the present application is to solve the problem of avoiding filter screen blockage in the prior art, and a construction dust treatment device is provided.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] A construction dust treatment device, comprising a box body, the inside of the box body is divided into a cleaning cavity and a filtering cavity by a partition plate, two filter screens are vertically arranged in the filtering cavity, the two filter screens slide into the cleaning cavity through a sliding assembly, a transposition assembly for driving the two filter screens to slide alternately is arranged on the top of the box body, the transposition assembly comprises a square slide rod and two first gears slidingly arranged on the surface of the square slide rod, the two first gears slide through a sliding assembly, and a cleaning assembly for cleaning the two filter screens respectively is arranged in the cleaning cavity.

[0007] In some embodiments, the sliding assembly comprises a second slide rail fixed on the bottom of the box body and a first rack fixed on the upper surface of the filter screen, the bottom of the filter screen is slidingly connected to the surface of the second slide rail, and the top of the filter screen slides on the top of the box body through the first rack.

[0008] In some embodiments of the box upper surface is fixedly connected with a protective shell, the square slide rod is rotatably connected with the inner wall of the protective shell through bearings, the surface of the square slide rod is slidably connected with a sliding sleeve, and the surface of the sliding sleeve is fixedly connected with two first gears which are alternately engaged with two first racks.

[0009] In some embodiments, the sliding assembly includes a sliding frame sliding on the upper surface of the box and two top plates symmetrically arranged on the corresponding surfaces of the two first racks, the sliding frame is rotatably connected with the surface of the sliding sleeve through bearings, and the two top plates push the sliding frame and the two first gears to slide.

[0010] In some embodiments, the cleaning assembly includes a connecting shaft rotatably connected inside the cleaning cavity and a plurality of cleaning brushes fixedly connected with the surface of the connecting shaft, the cleaning brushes are reciprocatingly swung through a plurality of second gears and second racks.

[0011] In some embodiments, the cleaning cavity is provided with a lifting assembly for driving the two second racks to reciprocate, the lifting assembly includes a swing piece rotatably connected inside the top of the cleaning cavity and a lifting rod slidably arranged at the bottom of the swing piece, the lower end of the lifting rod is fixedly connected with a pull shaft near one side of the second rack, the opposite sides of the two second racks are fixedly connected with clamping plates matched with the pull shaft, the upper end of the lifting rod is fixedly connected with the inner top of the swing piece through a second spring, and a pressing rod is vertically slidably arranged on the surface of the swing piece.

[0012] In some embodiments, the upper surface of the box is provided with a transmission assembly for driving the pressing rod to slide downward, the transmission assembly includes two meshing bevel gears and a cam for pressing the pressing rod, the cam is drivingly connected with one of the bevel gears through a universal shaft, and the cam abuts against the surface of an arc plate at the upper end of the pressing rod.

[0013] In some embodiments, the opposite surfaces of the two first racks are fixedly connected with top rods, the top of the swing piece is fixedly connected with a swing rod, the upper end of the swing rod is matched with the two top rods, and the inside of the cleaning cavity near one side of the second rack is provided with a guide groove for guiding the pull shaft.

[0014] In some embodiments, the two ends of the two first racks are respectively provided with a buffer assembly for preventing the first gear from being stuck, the buffer assembly includes two guide rods slidably arranged on the two sides of the first rack and movable teeth slidably arranged on the surfaces of the two guide rods.

[0015] In some embodiments, the front end of the box is provided with a dust collection assembly, the dust collection assembly includes an air suction fan fixedly connected with the upper surface of the box, a filter cavity is communicated with a dust collection cover through an aluminum foil telescopic pipe, and the dust collection cover is vertically slidably arranged on the surface of the first sliding rail through a first sliding block.

[0016] Compared with the prior art, the construction dust treatment device has the following beneficial effects.

[0017] 1、The filter cavity and the cleaning cavity are arranged, so that when the filter screen is cleaned, dust is prevented from being blown to the surface of the filter screen again, affecting the cleaning effect, two filter screens are sequentially cleaned in the cleaning cavity, the purpose of alternating cleaning is achieved, one filter screen is always kept in the filter cavity for filtering work, so that the dust treatment device can achieve the purpose of continuous dust collection, and the work efficiency is improved.

[0018] 2、The transposition assembly is arranged, so that the first gear drives the first rack and the filter screen to slide, under the action of the displacement assembly, the sliding sleeve and the two first gears are driven to move, so that the meshing relationship between the first gear and the first rack is changed, the sliding filter screen is replaced, and the purpose of convenient replacement is achieved.

[0019] Other advantages, objects and features of the present application will be set forth in part in the following specification; and in part will become apparent to those skilled in the art upon examination of the following specification, or can be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an axial structure schematic view of the present application.

[0021] Figure 2 It is an axial structure schematic view of the present application without the protective shell.

[0022] Figure 3 It is a side view schematic view of the present application.

[0023] Figure 4 It is a front view schematic view of the present application.

[0024] Figure 5 It is a top view schematic view of the initial state of the filter screen in the present application.

[0025] Figure 6 It is an axial structure schematic view of the sliding frame in the present application.

[0026] Figure 7 It is an axial structure schematic view of the initial state of the filter screen in the present application.

[0027] Figure 8 It is an axial structure schematic view of the filter screen in the present application during the alternating replacement process.

[0028] Figure 9 It is an axial structure schematic view of the present application Figure 8 in the enlarged structure schematic view of A.

[0029] Figure 10 It is a schematic diagram of the rear axial structure of the filter screen in the initial state of the present invention.

[0030] Figure 11 It is a schematic cross-sectional structural diagram of the lifting assembly in the present invention.

[0031] Figure 12 For the present invention Figure 4 Enlarged structural diagram at point B in the middle.

[0032] Figure 13 It is a schematic diagram of the cross-sectional structure of the cleaning component in the present invention.

[0033] Figure 14 It is a structural schematic diagram of the guide groove in the present invention.

[0034] Figure 15 This is a schematic diagram of the height structure of the sliding sleeve, push rod and sliding frame of the present invention.

[0035] In the picture:

[0036] 1. Box body; 2. Partition; 3. Filter; 4. Dust collection assembly; 401. Exhaust fan; 402. Aluminum foil telescopic tube; 403. Dust collection hood; 404. First slide rail; 405. First slider; 406. Guide plate; 5. Sliding assembly; 501. Second slide rail; 502. First rack; 6. Transposition assembly; 601. Square slide bar; 602. Sliding sleeve; 603. First gear; 7. Sliding assembly; 701. Sliding frame; 702. Top plate; 703. Second slider; 8. Buffer assembly; 801. Guide rod; 802. Movable tooth; 803. First spring; 804. Limiting ring 9. Cleaning assembly; 901. Connecting shaft; 902. Cleaning brush; 903. Second gear; 904. Second rack; 905. Third slider; 10. Lifting assembly; 1001. Swinging member; 1002. Lifting rod; 1003. Pull shaft; 1004. Clamping plate; 1005. Second spring; 1006. Press rod; 1007. Third spring; 11. Transmission assembly; 1101. Bevel gear; 1102. Universal joint; 1103. Cam; 12. Push rod; 13. Swinging rod; 14. Guide groove; 15. Collection box; 16. Cover plate; 17. Protective shell; 18. Air pressure sensor. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0038] Reference Figures 1-15The utility model provides a construction dust processing apparatus, including box 1, the inside vertical fixed baffle 2 of box 1, the inside of box 1 is divided into cleaning cavity and filter cavity through baffle 2, the width of cleaning cavity is greater than the width of filter cavity, two filter screens 3 are arranged inside filter cavity vertically, two filter screens 3 slide to the inside of cleaning cavity through sliding assembly 5, two filter screens 3 are passed through the through slot of baffle 2 surface and set up, sliding assembly 5 includes the second slide rail 501 of fixedly assembled in the bottom of box 1 and the first rack 502 of fixedly assembled on the upper surface of filter screen 3, and one end of second slide rail 501 extends into the inside of cleaning cavity and is fixed on the inner wall of cleaning cavity, the upper surface of box 1 is provided with the through slot, and the bottom of filter screen 3 is slidably connected to the surface of second slide rail 501, and the top of filter screen 3 is slidably connected to the inner wall of through slot through first rack 502, and the inner wall of box 1 is provided with air pressure sensor 18 close to the inboard of suction fan 401, and the end of first rack 502 close to cleaning cavity extends out of the range of filter screen 3, for keeping engagement with first gear 603, the bottom of cleaning cavity is open, and the bottom of cleaning cavity is fixedly connected with collecting box 15, and the bottom of cleaning cavity is communicated with collecting box 15, and the side of collecting box 15 is hingedly connected with cover plate 16, and the lower surface of box 1 and the lower surface of collecting box 15 are both fixedly connected with two moving wheels.

[0039] It can be understood that, by setting two filter screens 3, the two filter screens 3 are alternately slid to the cleaning cavity through the second slide rail 501 and the first rack 502 for cleaning, so that the dust cleaned falls into the collecting box 15, since the filter cavity and the cleaning cavity are isolated by the baffle 2, and the through slot on the surface of the baffle 2 is closed by the fixed frame, the dust cleaned will not be blown again by the air flow to the surface of the filter screen 3 in the filter cavity, which can avoid the filter screen 3 from being blocked too fast to affect the air flow, by setting the air pressure sensor 18, the air pressure below the suction fan 401 in the filter cavity can be monitored, when the air pressure is lower than the preset value, it indicates that the air is difficult to pass through the filter screen 3, which means that the filter screen 3 is not ventilated, indicating that it is in a blocked state, so that the filter screen 3 is replaced for cleaning.

[0040] Specifically, the surface of the box 1 is provided with a dust suction assembly 4, the dust suction assembly 4 includes a suction fan 401 fixedly assembled on the upper surface of the box 1, the suction fan 401 is communicated with the filter cavity in the box 1, the front end of the box 1 is communicated with a dust suction hood 403 through an aluminum foil telescopic pipe 402, the dust suction hood 403 is communicated with the filter cavity through the aluminum foil telescopic pipe 402, the front end of the box 1 is fixedly connected with a first slide rail 404, the back surface of the dust suction hood 403 is fixedly connected with a first sliding block 405, the dust suction hood 403 is slidably connected to the surface of the first slide rail 404 through the first sliding block 405, the surface of the first sliding block 405 is provided with a locking bolt, the first sliding block 405 is fixedly connected to the surface of the first slide rail 404 through the locking bolt, a plurality of flow guides 406 are fixedly connected inside the filter cavity, the interval of the flow guides 406 close to the suction fan 401 is close, and the interval of the flow guides 406 away from the suction fan 401 is increased.

[0041] It can be understood that, by the operation of the suction fan 401, a negative pressure is generated in the filtering cavity, and the dust generated during the construction process is sucked into the filtering cavity under the action of the dust cover 403 and the aluminum foil telescopic pipe 402, and the filtered air is discharged through the suction fan 401, and under the action of the plurality of guide plates 406, the airflow is dispersed to the surface of the filter screen 3, the filtering effect is improved, the dust cover 403 is vertically slid on the surface of the first sliding rail 404 through the first sliding block 405, so as to adjust the height of the dust cover 403, and at the same time, the box body 1 is moved through the moving wheels, so that the position of the dust cover 403 is adjusted to the direction in which the dust is dispersed, thereby maximizing the dust suction.

[0042] Specifically, the box body 1 is fixedly connected with a protective shell 17 on the upper surface, and the protective shell 17 is internally provided with a transposition assembly 6 for driving the two filter screens 3 to alternately slide, the transposition assembly 6 comprises a square sliding rod 601 and a sliding sleeve 602 sliding on the surface of the square sliding rail, the square sliding rod 601 is rotatably connected to the inner wall of the protective shell 17 through bearings at both ends, the surface of the sliding sleeve 602 is fixedly provided with two first gears 603, the distance between the two first gears 603 is smaller than the distance between the two first racks 502, the two first gears 603 are alternately engaged with the two first racks 502, respectively, and the square sliding rod is driven to rotate by a driving motor, and the driving motor is fixedly connected to the surface of the protective shell 17.

[0043] It can be understood that, by driving the square sliding rod 601 to rotate through the driving motor, the sliding sleeve 602 and the two first gears 603 are driven to rotate, and under the meshing relationship between one of the first gears 603 and one of the first racks 502, one of the filter screens 3 is driven to slide into the cleaning cavity for cleaning work, when one of the filter screens 3 is cleaned, the first gear 603 drives the first rack 502 and the filter screen 3 to slide into the filtering cavity for filtering work, the sliding sleeve 602 slides on the surface of the square sliding rail, thereby driving the two first gears 603 to move, so that the other first gear 603 is engaged with the other first rack 502, and the other filter screen 3 is driven to slide into the cleaning cavity for cleaning work, thereby achieving the purpose of alternating cleaning, and one of the filter screens 3 is always kept in the filtering cavity for filtering work, so that the dust treatment device can achieve the purpose of continuous dust suction, and the working efficiency is improved.

[0044] Specifically, the upper surface of the box body 1 is provided with a sliding assembly 7, the sliding assembly 7 comprises a sliding frame 701 sliding on the upper surface of the box body 1 and two top plates 702 symmetrically arranged on the opposite sides of the two first gear racks 502, the upper surface of the sliding frame 701 is fixedly connected with two supporting plates, the two supporting plates are rotatably connected to the surface of the sliding sleeve 602 through bearings, the side close to the transmission assembly 11 of the sliding frame 701 is fixedly connected with an extension plate, the extension plate is parallel to the upper surface of the box body 1, the lower surface of the sliding frame 701 is fixedly connected with a second sliding block 703, the sliding frame 701 slides on the upper surface of the box body 1 along the axis direction of the sliding sleeve 602 through the second sliding block 703, the sliding frame 701 is symmetrically provided with inclined surfaces at the ends corresponding to the two top plates 702, the sliding frame 701 is arranged on the side away from the square slide rod 601 of the top plate 702, and the contact surfaces of the two top plates 702 and the two inclined surfaces are arc surfaces.

[0045] It can be understood that the first gear rack 502 drives the top plate 702 to slide, when the first gear rack 502 drives the top plate 702 to slide to the position of the filtering cavity, the top plate 702 pushes the sliding frame 701 to the direction of the other top plate 702 through the inclined surface, and at the same time, the sliding frame 701 drives the sliding sleeve 602 and the two first gears 603 to move, so that the meshing relationship between the first gear 603 and the first gear rack 502 is changed.

[0046] Specifically, the two ends of the two first gear racks 502 are respectively provided with a buffer assembly 8, the buffer assembly 8 comprises two guide rods 801 sliding on the two sides of the first gear rack 502 and a movable tooth 802 slidingly arranged on the surfaces of the two guide rods 801, the surfaces of the two guide rods 801 are respectively slidably connected with connecting plates, the two connecting plates are fixedly connected to the two sides of the first gear rack 502, the two sides of the movable tooth 802 are respectively fixedly connected with two connecting plates, the two connecting plates are slidably connected to the surfaces of the two guide rods 801, the surfaces of the two guide rods 801 are respectively sleeved with first springs 803, the two first springs 803 drive the movable tooth 802 to move away from the first gear rack 502, the initial distance between the movable tooth 802 and one end of the first gear rack 502 is the same as the pitch distance of the first gear rack 502, and the two ends of the two guide rods 801 are fixedly connected with limiting rings 804.

[0047] It can be understood that by setting the movable tooth 802, the movable tooth 802 slides on the surface of the two guide rods 801, when the first gear 603 drives the first rack 502 to slide and makes one end of the buffer assembly 8 abut against the inner wall of the cleaning cavity or the filtering cavity, the first gear 603 continues to rotate, at this time, the first gear 603 drives the movable tooth 802 to move, the movable tooth 802 is disengaged from the meshing relationship with the first gear 603 after sliding, then the movable tooth 802 is reset by the first spring 803, and is meshed and driven to move by the first gear 603 again, the movement process is repeated, so that the sliding tooth phenomenon is formed between the first gear 603 and the movable tooth 802, while the first gear 603 and the first rack 502 are not disengaged from the meshing relationship, the first gear 603 can rotate, so that the other first gear 603 can enter the range of the other first rack 502 from the vertical direction during rotation, and the meshing relationship with the other first rack 502 is generated, when the first gear 603 changes the rotation direction, the first gear 603 drives the movable tooth 802 to slide away from the first rack 502, when the movable tooth 802 slides to the position of the limiting ring 804, the movable tooth 802 and the limiting ring 804 drive the first rack 502 to move along the rotation direction of the first gear 603, so that the first gear 603 drives the first rack 502 to move.

[0048] Specifically, two groups of cleaning assemblies 9 are arranged inside the cleaning cavity, and the two groups of cleaning assemblies 9 clean the filtering surfaces of the two filter screens 3 respectively, the cleaning assembly 9 comprises a connecting shaft 901 rotatably connected inside the cleaning cavity and a cleaning brush 902 fixedly assembled on the surface of the connecting shaft 901, the cleaning brush 902 is arranged in a vertical array inside the cleaning cavity, and a plurality of connecting shafts 901 are fixedly assembled with second gears 903 away from one end of the partition plate 2 respectively.

[0049] It can be understood that the second rack 904 reciprocatingly slides vertically on the inner wall of the cleaning cavity through the third sliding block 905, so as to drive the plurality of second gears 903 to rotate synchronously, and the plurality of cleaning brushes 902 reciprocatingly swing on the filtering surface of the filter screen 3 through the connecting shaft 901, so as to facilitate cleaning of the filter screen 3.

[0050] Specifically, the inner top of the cleaning cavity is provided with a lifting assembly 10 driving two second ratchets 904 to reciprocate, the lifting assembly 10 comprises a swing piece 1001 rotating in the inner top of the cleaning cavity and a lifting rod 1002 slidingly arranged at the bottom of the swing piece 1001, the lifting rod 1002 is square, a pull shaft 1003 is fixedly connected to the lower end of the lifting rod 1002 close to one side of the second ratchet 904, the opposite sides of the two second ratchets 904 are respectively fixedly connected with clamping plates 1004, the surfaces of the clamping plates 1004 are provided with grooves for horizontal movement of the pull shaft 1003, the upper end of the lifting rod 1002 is fixedly connected to the inner top of the swing piece 1001 through a second spring 1005, the second spring 1005 is a tension spring, a pressing rod 1006 is vertically and slidingly arranged on the surface of the swing piece 1001, the lower end of the pressing rod 1006 abuts against the lower end of the lifting rod 1002, the upper end of the pressing rod 1006 extends to the upper surface of the box body 1, the upper end of the pressing rod 1006 is fixedly connected with an arc-shaped plate, the upper surface of the box body 1 is provided with a through groove enabling the swing of the pressing rod 1006, the second spring 1005 is sleeved on the surface of the pressing rod 1006, the second spring 1005 pulls the lifting rod 1002 to rise and drives the upper end of the pressing rod 1006 to abut against the surface of the cam 1103, the two sides of the swing piece 1001 close to the filter screen 3 are respectively fixedly connected with third springs 1007, the upper ends of the two third springs 1007 are respectively fixedly connected to the inner top of the cleaning cavity, the two third springs 1007 are both arranged obliquely, and the swing piece 1001 is kept vertical through the two third springs 1007.

[0051] It can be understood that the lower end of the lifting rod 1002 is swung to one side through the swing piece 1001, so that the pull shaft 1003 is inserted into the groove on the surface of the clamping plate 1004, and the pressing rod 1006 drives the lifting rod 1002 to slide downward, so that the pull shaft 1003 drives the clamping plate 1004 and the second ratchet 904 to slide downward, and under the action of the second spring 1005, the lifting rod 1002 and the pull shaft 1003 can be pulled to rise, so as to drive the second ratchet 904 to reciprocate up and down, so that the cleaning brush 902 swings to clean the surface of the filter screen 3. Since the pressing rod 1006 and the pull shaft 1003 are obliquely and reciprocally slid, and the second ratchet 904 and the clamping plate 1004 are vertically slid, the groove is arranged on the surface of the clamping plate 1004, so that the pull shaft 1003 can slide horizontally in the groove during reciprocating sliding, thereby avoiding movement interference between the pull shaft 1003 and the clamping plate 1004, and the third spring 1007 is arranged, so as to facilitate the pulling of the swing piece 1001 to reset to the vertical direction.

[0052] Specifically, the upper surface of the box body 1 is provided with a transmission assembly 11 for driving the pressing rod 1006 to slide downward, the transmission assembly 11 comprises two meshing bevel gears 1101, one of which is fixedly assembled on the surface of the sliding sleeve 602, and the other is rotatably connected to the surface of a fixed plate through a bearing, the fixed plate is fixed on the upper surface of an extension plate, for keeping the meshing relationship between the two bevel gears 1101 while driving the sliding frame 701 and the sliding sleeve 602 to slide, the transmission assembly 11 further comprises a cam 1103 for pressing the pressing rod 1006, the cam 1103 is rotatably connected with a supporting block through a rotating shaft, the supporting block is fixedly connected to the upper surface of the box body 1, the end of the rotating shaft away from the cam 1103 is drivingly connected with the other bevel gear 1101 through a universal shaft 1102, the cam 1103 abuts against the surface of the arc-shaped plate on the upper end of the pressing rod 1006, the top rods 12 are fixedly connected to the opposite surfaces of the two first racks 502, the swinging rod 13 is fixedly connected to the top of the swinging piece 1001, the upper end of the swinging rod 13 extends out of the upper surface of the box body 1, the upper end of the swinging rod 13 is provided with a horizontal plate, the contacting surfaces of the horizontal plate and the top rod 12 are both provided with arc surfaces, the upper surface of the box body 1 is provided with a through groove for the swinging rod 13 to swing, the cleaning cavity is provided with a guide groove 14 near the side of the second rack 904, the guide groove 14 is three rectangular recesses with communicating bottoms, the recesses on both sides of the middle one are inclined surfaces for facilitating the sliding of the pull shaft 1003 into the recesses on both sides, the communicating positions between the recesses are located at the lowest descending height of the recess on the surface of the clamping plate 1004, and the end of the pull shaft 1003 away from the lifting rod 1002 is arranged in the guide groove 14.

[0053] It can be understood that, after the first gear 603 drives the first rack 502 and the filter screen 3 to slide into the cleaning cavity, the first gear 603 continuously rotates and meshes with the movable teeth 802, so that the first gear 603 cannot be stuck and cannot rotate, and under the action of the two bevel gears 1101, the sliding sleeve 602 drives the cam 1103 to rotate through the universal shaft 1102, the cam 1103 continuously presses the pressing rod 1006 through the arc-shaped plate, so that the pressing rod 1006 drives the lifting rod 1002 and the pull shaft 1003 to reciprocatingly lift and descend, the universal shaft 1102 is arranged, so as to facilitate the transmission connection between the bevel gear 1101 and the cam 1103 which are not on the same concentric shaft, since the second rack 904 will slide to the bottom under the action of gravity, the clamping plate 1004 will also descend to the bottom, at this time, the height of the recess on the surface of the clamping plate 1004 is the same as that of the communicating position in the guide groove 14, the guide groove 14 is arranged, so as to facilitate the accurate insertion of the pull shaft 1003 into the recess on the surface of the clamping plate 1004 when the pull shaft 1003 is deflected, the top rod 12 is arranged, when the filter screen 3 slides into the cleaning cavity, the top rod 12 abuts against the swinging rod 13, the swinging rod 13 drives the swinging piece 1001 to deflect, so as to drive the lifting rod 1002 and the pull shaft 1003 to slide into the clamping groove on the surface of the clamping plate 1004 through the guide groove 14.

[0054] In the application, one filter screen 3 filters in the filtering cavity, and the other filter screen 3 waits for use in the cleaning cavity. The box 1 is pushed to the working position by the moving wheel, the height of the dust cover 403 is adjusted by the sliding of the first sliding block 405 on the surface of the first sliding rail 404, the position of the dust cover 403 is adjusted to the direction of dust diffusion in the construction process, so that the dust is maximally inhaled, the negative pressure is generated in the filtering cavity by the work of the air suction fan 401, the dust generated in the construction process is inhaled into the filtering cavity under the action of the dust cover 403 and the aluminum foil telescopic pipe 402, the airflow is dispersed to the surface of the filter screen 3 under the action of the plurality of flow guides 406, the filtering effect is improved, the dust in the air is filtered through the filter screen 3, the filtered air is discharged through the air outlet, and the air pressure in the filtered part of the cleaning cavity can be monitored under the action of the air pressure sensor 18. When the air pressure is less than the preset value, it indicates that the filter screen 3 is blocked. At this time, the square slide rod 601 is driven to rotate by the driving motor, the slide sleeve 602 and the two first gears 603 are driven to rotate, one of the first gears 603 meshes with one of the first racks 502, one of the filter screens 3 is driven to slide into the cleaning cavity through the second sliding rail 501 and the first rack 502, and the other filter screen 3 is driven into the filtering cavity to perform filtering work. When one end of the first rack 502 matched with one of the filter screens 3 abuts against the inner wall of the cleaning cavity through the buffer assembly 8, the first gear 603 meshes with the movable tooth 802, the gear of the first gear 603 continues to rotate, at this time, the movable tooth 802 is driven to move by the first gear 603, the movable tooth 802 is disengaged from the meshing relationship with the first gear 603 after sliding, and then the movable tooth 802 is reset by the first spring 803 and is driven to move again by the first gear 603. The reciprocating movement process makes the first gear 603 and the movable tooth 802 form a sliding tooth phenomenon, the slide sleeve 602 can continue to rotate, the top rod 12 abuts against the swing rod 13, the swing rod 13 drives the swing piece 1001 to deflect, thereby driving the lifting rod 1002 and the pull shaft 1003 to deflect, the pull shaft 1003 is conveniently inserted into the groove on the surface of the clamping plate 1004 under the action of the guide groove 14, the slide sleeve 602 drives the cam 1103 to rotate through the universal shaft 1102 under the action of the two bevel gears 1101, the cam 1103 continuously presses the pressure rod 1006 through the arc plate, the lifting rod 1002 and the pull shaft 1003 slide downwardly through the pressure rod 1006, thereby driving the clamping plate 1004 and the second rack 904 to slide downwardly, the lifting rod 1002 and the pull shaft 1003 are driven to rise and reset under the action of the second spring 1005, the second rack 904 is driven to rise and reset, the second rack 904 reciprocally slides, and a plurality of second gears 903 are synchronously rotated,The plurality of cleaning brushes 902 swing back and forth on the filtering surface of the filter screen 3 through the connecting shaft 901 to clean the filtering surface of the filter screen 3, and the dust cleaned falls into the collecting box 15. Since the filtering cavity and the cleaning cavity are isolated by the partition plate 2, and the through slot on the surface of the partition plate 2 is closed by the fixed frame, the dust cleaned will not be blown again by the air flow to the surface of the filter screen 3 in the filtering cavity, so that the filter screen 3 can be prevented from being blocked too fast to affect the air flow. When one of the filter screens 3 is cleaned, the other filter screen 3 performs filtering work. When the air pressure sensor 18 detects that the air pressure becomes small, indicating that the other filter screen 3 is blocked, the driving motor drives the first gear 603 to change the rotation direction, and the other first rack 502 and the other filter screen 3 are sent into the filtering cavity. When the one filter screen 3 slides into the filtering cavity, the top rod 12 is separated from the swing rod 13, and under the action of the two third springs 1007, the swing piece 1001 and the lifting rod 1002 swing to be vertical, and the pull shaft 1003 slides to the middle of the guide slot 14 in the process of up and down reciprocating motion. When the one filter screen 3 is about to slide into place, the first rack 502 drives the top plate 702 to abut against the sliding frame 701, so that the top plate 702 pushes the sliding frame 701 to the direction of the other top plate 702 through the inclined surface. At the same time, the sliding frame 701 drives the sliding sleeve 602 and the two first gears 603 to move, so that the one first gear 603 is disengaged from the one first rack 502, and the other first gear 603 is engaged with the other first rack 502. The rotation direction of the first gear 603 is changed again, so that the other first gear 603 drives the other first rack 502 and the other filter screen 3 to clean the cleaning cavity. The two filter screens 3 are alternately cleaned in the cleaning cavity through the second sliding rail 501 and the first rack 502, so that one filter screen 3 always performs filtering work in the filtering cavity, so that the dust treatment device can achieve the purpose of continuous dust collection, and the working efficiency is improved. The dust in the collecting box 15 is cleaned by opening the cover plate 16.

[0055] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

[0056] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0057] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A construction dust treatment device, comprising a box (1), characterized in that: The interior of the box body (1) is divided into a cleaning chamber and a filter chamber by a partition (2), two filter screens (3) are vertically arranged inside the filter chamber, and the two filter screens (3) slide into the interior of the cleaning chamber through a sliding assembly (5), and a transposition assembly (6) is arranged on the top of the box body (1) for driving the two filter screens (3) to slide alternately, and the transposition assembly (6) includes a square slide bar (601) and two first gears (603) slidably arranged on the surface of the square slide bar (601), and the two first gears (603) slide through the sliding assembly (7), and a cleaning assembly (9) for cleaning the two filter screens (3) respectively is arranged inside the cleaning chamber; The sliding assembly (5) includes a second slide rail (501) fixed to the bottom of the box (1) and a first rack (502) fixed to the upper surface of the filter (3); the bottom of the filter (3) is slidably connected to the surface of the second slide rail (501), and the top of the filter (3) slides on the top of the box (1) through the first rack (502); The cleaning assembly (9) comprises a connecting shaft (901) rotatably connected to the interior of the cleaning chamber and a cleaning brush (902) fixedly mounted on the surface of the connecting shaft (901), wherein there are a plurality of cleaning brushes (902), and the plurality of cleaning brushes (902) are reciprocated by means of a plurality of second gears (903) and a second rack (904); A lifting assembly (10) is provided at the top of the cleaning chamber for driving the two second racks (904) to slide back and forth. The lifting assembly (10) includes a swinging member (1001) rotating at the top of the cleaning chamber and a lifting rod (1002) slidably provided at the bottom of the swinging member (1001). A pull shaft (1003) is fixedly connected to the lower end of the lifting rod (1002) near the second rack (904). A clamping plate (1004) cooperating with the pull shaft (1003) is fixedly connected to the opposite sides of the two second racks (904). The upper end of the lifting rod (1002) is fixedly connected to the top of the swinging member (1001) via a second spring (1005). A pressure rod (1006) is provided on the surface of the swinging member (1001) for vertical sliding. The upper surface of the box body (1) is provided with a transmission assembly (11) for driving the pressure rod (1006) to slide downward, the transmission assembly (111) comprising two meshing bevel gears (1101) and a cam (1103) for pressing the pressure rod (1006), the cam (1103) being connected to one of the bevel gears (1101) via a universal shaft (1102), and the cam (1103) abutting against the surface of the arc plate at the upper end of the pressure rod (1006); A push rod (12) is fixedly connected to the opposite surfaces of the two first racks (502), a swing rod (13) is fixedly connected to the top of the swing member (1001), the upper end of the swing rod (13) cooperates with the two push rods (12), and a guide groove (14) for guiding the pulling shaft (1003) is opened on the side near the second rack (904) inside the cleaning chamber.

2. A construction dust treatment device according to claim 1, characterized in that: The upper surface of the box body (1) is fixedly connected to a protective shell (17), and both ends of the square slide bar (601) are rotatably connected to the inner wall of the protective shell (17) through bearings. The surface of the square slide bar (601) is slidably connected to a sliding sleeve (602), and the surface of the sliding sleeve (602) is fixedly equipped with two first gears (603), and the two first gears (603) are alternately meshed with the two first racks (502) respectively.

3. A construction dust treatment device according to claim 1, characterized in that: The sliding assembly (7) comprises a sliding frame (701) sliding on the upper surface of the box body (1) and two top plates (702) symmetrically arranged on the corresponding surfaces of the two first racks (502); the sliding frame (701) is rotatably connected to the surface of the sliding sleeve (602) through a bearing, and the two top plates (702) push the sliding frame (701) and the two first gears (603) to slide.

4. A construction dust treatment device according to claim 1, characterized in that: Buffer assemblies (8) for preventing the first gear (603) from getting stuck are respectively provided at both ends of the two first racks (502), and the buffer assemblies (8) include two guide rods (801) sliding on both sides of the first rack (502) and movable teeth (802) slidingly provided on the surfaces of the two guide rods (801).

5. The construction dust treatment device according to claim 1, characterized in that: A dust collection assembly (4) is provided at the front end of the box body (1), and the dust collection assembly (4) comprises an exhaust fan (401) fixedly mounted on the upper surface of the box body (1). The filter chamber is connected to a dust collection hood (403) via an aluminum foil telescopic tube (402), and the dust collection hood (403) slides vertically on the surface of the first slide rail (404) via a first slider (405).

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