Construction dust treatment device

Abstract

The invention discloses a construction dust treatment device, and belongs to the technical field of dust treatment. A construction dust treatment device comprises a box body, the interior of the box body is divided into a cleaning cavity and a filtering cavity through a partition plate, two filtering nets are vertically arranged in the filtering cavity and slide towards the interior of the cleaning cavity through a sliding assembly, and a position changing assembly for driving the two filtering nets to slide alternately is arranged at the top of the box body. The transposition assembly comprises a square sliding rod and two first gears arranged on the surface of the square sliding rod in a sliding mode. By arranging the filtering cavity and the cleaning cavity, dust is conveniently prevented from being blown to the surfaces of the filtering nets again to affect the cleaning effect when the filtering nets are cleaned, the two filtering nets sequentially enter the cleaning cavity to be cleaned, the purpose of alternate cleaning is achieved, one filtering net is always kept to conduct filtering work in the filtering cavity, and the filtering efficiency is improved. Therefore, the dust treatment device can achieve the purpose of continuous dust collection, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of dust treatment, and in particular to a construction dust treatment device. Background Art

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

[0003] The existing dust treatment equipment usually uses negative pressure to inhale the generated dust and filter it through the filter, so that the filtered air is discharged to the outside. During the construction process, a lot of dust is generated, which causes the filter to be blocked too quickly. In the prior art, the dust on the surface of the filter is cleaned by using a cleaning brush so that the filter can be used continuously. However, the cleaned dust falls under the dust filter, and the dust treatment device is continuously performing dust removal work. The dust below or the cleaned dust is easily blown again by the airflow, causing the filter to be blocked too quickly. If the cleaning brush is not cleaned in time, the airflow will be affected, and an effective dust removal effect cannot be maintained. Summary of the invention

[0004] The purpose of the present invention is to solve the problem of avoiding filter screen clogging in the prior art and to propose a construction dust treatment device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A construction dust treatment device comprises a box body, wherein the interior of the box body is divided into a cleaning chamber and a filter chamber by a partition, two filter screens are vertically arranged inside the filter chamber, and the two filter screens slide into the cleaning chamber through a sliding assembly, and a transposition assembly for driving the two filter screens to slide alternately is arranged on the top of the box body, and the transposition assembly comprises a square slide bar and two first gears slidably arranged on the surface of the square slide bar, and the two first gears slide through the sliding assembly, and a cleaning assembly for cleaning the two filter screens separately is arranged inside the cleaning chamber.

[0006] In some embodiments, the sliding assembly includes a second slide rail fixed to the bottom of the box and a first rack fixed to the upper surface of the filter screen. The bottom of the filter screen is slidably connected to the surface of the second slide rail, and the top of the filter screen slides on the top of the box through the first rack.

[0007] In some embodiments, a protective shell is fixedly connected to the upper surface of the box body, and both ends of the square sliding rod are rotatably connected to the inner wall of the protective shell through bearings. A sliding sleeve is slidably connected to the surface of the square sliding rod, and two first gears are fixedly assembled on the surface of the sliding sleeve, and the two first gears are alternately meshed with the two first racks respectively.

[0008] 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 to the surface of the sleeve through a bearing, and the two top plates push the sliding frame and the two first gears to slide.

[0009] In some embodiments, the cleaning assembly includes a connecting shaft rotatably connected to the inside of the cleaning chamber and a cleaning brush fixedly mounted on the surface of the connecting shaft. There are a plurality of cleaning brushes, and the plurality of cleaning brushes reciprocate through a plurality of second gears and second racks.

[0010] In some embodiments, a lifting assembly that drives the two second racks to slide back and forth is provided at the top of the cleaning chamber. The lifting assembly includes a swinging member that rotates at the top of the cleaning chamber and a lifting rod that is slidably provided at the bottom of the swinging member. A pull shaft is fixedly connected to the lower end of the lifting rod close to the second rack, and clamping plates that cooperate with the pull shaft are respectively fixedly connected to the opposite sides of the two second racks. The upper end of the lifting rod is fixedly connected to the top of the swinging member through a second spring, and a pressure rod is provided on the surface of the swinging member for vertical sliding.

[0011] In some embodiments, a transmission assembly is provided on the upper surface of the box body for driving the pressure rod to slide downward, and the transmission assembly includes two meshing bevel gears and a cam for pressing the pressure rod. The cam is connected to one of the bevel gears through a universal joint, and the cam abuts against the arc plate surface at the upper end of the pressure rod.

[0012] In some embodiments, a push rod is fixedly connected to the opposite surfaces of the two first racks, a swing rod is fixedly connected to the top of the swing member, the upper end of the swing rod cooperates with the two push rods, and a guide groove for guiding the pull shaft is opened inside the cleaning chamber near the second rack.

[0013] In some embodiments, buffer components for preventing the first gear from getting stuck are respectively provided at both ends of the two first racks, and the buffer components include two guide rods sliding on both sides of the first racks respectively and movable teeth slidably provided on the surfaces of the two guide rods.

[0014] In some embodiments, a dust suction assembly is provided at the front end of the box, and the dust suction assembly includes an exhaust fan fixedly mounted on the upper surface of the box. The filter cavity is connected to a dust suction hood through an aluminum foil telescopic tube, and the dust suction hood slides vertically on the surface of the first slide rail through a first slider.

[0015] Compared with the prior art, the present invention provides a construction dust treatment device having the following beneficial effects.

[0016] 1. The present invention provides a filter chamber and a cleaning chamber, so that when cleaning the filter, dust is prevented from being blown to the surface of the filter again to affect the cleaning effect. The two filters enter the cleaning chamber in turn for cleaning, thereby achieving the purpose of alternating cleaning. There is always a filter in the filter chamber for filtering, so that the dust treatment device can achieve the purpose of continuous dust collection and improve work efficiency.

[0017] 2. The present invention sets a displacement assembly 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, thereby changing the meshing relationship between the first gear and the first rack, thereby replacing the sliding filter screen and achieving the purpose of easy replacement.

[0018] Other advantages, objectives and features of the present invention will be described in part in the following description; and in part, will be apparent to those skilled in the art based on an examination of the following; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the axial structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the axial structure without the protective shell in the present invention.

[0021] Figure 3 It is a schematic diagram of the side cross-sectional structure of the present invention.

[0022] Figure 4 It is a schematic diagram of the front cross-sectional structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the top view of the filter screen in the initial state of the present invention.

[0024] Figure 6 It is a schematic diagram of the axial structure of the sliding frame in the present invention.

[0025] Figure 7 It is a schematic diagram of the axial structure of the filter screen in the initial state of the present invention.

[0026] Figure 8 It is a schematic diagram of the axial structure during the process of alternately replacing the filter screen in the present invention.

[0027] Fig. 9 For the present invention Figure 8 Enlarged structural diagram at A in the middle.

[0028] Fig.10 It is a schematic diagram of the rear axial structure of the filter screen in the initial state of the present invention.

[0029] Fig.11 It is a schematic diagram of the cross-sectional structure of the lifting assembly in the present invention.

[0030] Fig.12 For the present invention Figure 4 Enlarged structural diagram at B in the middle.

[0031] Fig.13 It is a schematic diagram of the cross-sectional structure of the cleaning component in the present invention.

[0032] Fig.14 It is a structural schematic diagram of the guide groove in the present invention.

[0033] Fig.15 It is a schematic diagram of the height structure of the sliding sleeve, the push rod and the sliding frame of the present invention.

[0034] In the figure: 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 piece; 1002. Lifting rod; 1003. Pulling shaft; 1004. Cardan; 1005. Second spring; 1006. Pressing rod; 1007. Third spring; 11. Transmission assembly; 1101. Bevel gear; 1102. Universal shaft; 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

[0035] 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.

[0036] Reference Figure 1-15, a construction dust treatment device, including a box body 1, a partition 2 is vertically fixed inside the box body 1, the box body 1 is divided into a cleaning chamber and a filter chamber by the partition 2, the width of the cleaning chamber is greater than the width of the filter chamber, two filter screens 3 are vertically arranged inside the filter chamber, the two filter screens 3 slide into the cleaning chamber through a sliding component 5, the surface of the partition 2 is provided with two through grooves for allowing the filter screens 3 to pass, the sliding component 5 includes a second slide rail 501 fixed to the bottom of the box body 1 and a first rack 502 fixed to the upper surface of the filter screen 3, one end of the second slide rail 501 extends into the cleaning chamber and is fixed to the inner wall of the cleaning chamber, the box A through groove is provided on the upper surface of the body 1, and the bottom of the filter screen 3 is slidably connected to the surface of the second slide rail 501. The top of the filter screen 3 slides on the inner wall of the through groove through the first rack 502. An air pressure sensor 18 is arranged on the inner wall of the box body 1 near the inner side of the exhaust fan 401. The first rack 502 extends out of the filter screen 3 near one end of the cleaning chamber, and is used to maintain a meshing relationship with the first gear 603. The bottom of the cleaning chamber is an opening, and a collection box 15 is fixedly connected to the bottom of the cleaning chamber. The bottom of the cleaning chamber is connected to the collection box 15, and a cover plate 16 is hinged on the side of the collection box 15. Two movable wheels are fixedly connected to the lower surface of the box body 1 and the lower surface of the collection box 15.

[0037] It can be understood that by setting two filter screens 3, the two filter screens 3 are alternately slid into the cleaning chamber for cleaning through the second slide rail 501 and the first rack 502, so that the cleaned dust falls into the collection box 15. Since the filter chamber and the cleaning chamber are separated by the partition 2, and the through groove on the surface of the partition 2 is closed by the fixed frame, the cleaned dust will not be blown to the surface of the filter screen 3 in the filter chamber again by the airflow, which can avoid the filter screen 3 from being blocked too quickly and affecting the airflow. By setting the air pressure sensor 18, the air pressure below the exhaust fan 401 in the filter chamber 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 indicates that the filter screen 3 is poorly ventilated and is in a blocked state, so the filter screen 3 is replaced for cleaning.

[0038] Specifically, a dust collection component 4 is provided on the surface of the box body 1, and the dust collection component 4 includes an exhaust fan 401 fixedly assembled on the upper surface of the box body 1, the exhaust fan 401 is connected to the filter chamber in the box body 1, and a dust hood 403 is provided at the front end of the box body 1 through an aluminum foil telescopic tube 402, and the dust hood 403 is connected to the filter chamber through the aluminum foil telescopic tube 402, a first slide rail 404 is fixedly connected to the front end of the box body 1, a first slider 405 is fixedly connected to the back of the dust hood 403, the dust hood 403 is slidably connected to the surface of the first slide rail 404 through the first slider 405, a locking bolt is provided on the surface of the first slider 405, and the first slider 405 is fixed to the surface of the first slide rail 404 through the locking bolts, and a plurality of guide plates 406 are fixedly connected inside the filter chamber, and the spacing between the plurality of guide plates 406 close to one end of the exhaust fan 401 is similar, and the spacing between the plurality of guide plates 406 away from one end of the exhaust fan 401 increases.

[0039] It can be understood that, by the operation of the exhaust fan 401, a negative pressure is generated in the filter chamber, and under the action of the dust hood 403 and the aluminum foil telescopic tube 402, the dust generated during the construction process is sucked into the filter chamber, and the filtered air is discharged through the exhaust fan 401. Under the action of multiple guide plates 406, the airflow is dispersed to the surface of the filter 3 to improve the filtering effect, so that the dust hood 403 slides vertically on the surface of the first slide rail 404 through the first slider 405, thereby adjusting the height of the dust hood 403. At the same time, the box 1 is moved by the moving wheels to adjust the position of the dust hood 403 to the direction of dust dispersion, thereby maximizing the dust inhalation.

[0040] Specifically, a protective shell 17 is fixedly connected to the upper surface of the box body 1, and a transposition component 6 is arranged inside the protective shell 17 to drive the two filter screens 3 to slide alternately. The transposition component 6 includes a square slide rod 601 and a sleeve 602 sliding on the surface of the square slide rail. The two ends of the square slide rod 601 are round shafts and are rotatably connected to the inner wall of the protective shell 17 through bearings. Two first gears 603 are fixedly assembled on the surface of the sleeve 602. The spacing between the two first gears 603 is smaller than the spacing between the two first racks 502. The two first gears 603 are alternately meshed with the two first racks 502 respectively, and the direction slide rod is driven to rotate by a driving motor, and the driving motor is fixedly connected to the surface of the protective shell 17.

[0041] It can be understood that the square slide bar 601 is driven to rotate by the driving motor, thereby driving the slide sleeve 602 and the two first gears 603 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 chamber 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 filter chamber for filtering work, and the slide sleeve 602 slides on the surface of the square slide rail, thereby driving the two first gears 603 to move, so that the other first gear 603 is meshed with the other first rack 502, and drives the other filter screen 3 to slide into the cleaning chamber for cleaning work, thereby achieving the purpose of alternating cleaning, and always keeping a filter screen 3 in the filter chamber for filtering work, so that the dust treatment device can achieve the purpose of continuous dust collection and improve work efficiency.

[0042] Specifically, a sliding assembly 7 is provided on the upper surface of the box body 1, and the sliding assembly 7 includes a sliding frame 701 sliding on the upper surface of the box body 1 and two top plates 702 symmetrically arranged on opposite sides of the two first racks 502. Two support plates are fixedly connected to the upper surface of the sliding frame 701, and the two support plates are rotatably connected to the surface of the sliding sleeve 602 through bearings. An extension plate is fixedly connected to the side of the sliding frame 701 close to the transmission assembly 11, and the extension plate is parallel to the upper surface of the box body 1. A second slider 703 is fixedly connected to the lower surface of the sliding frame 701. The sliding frame 701 slides on the upper surface of the box body 1 along the axial direction of the sliding sleeve 602 through the second slider 703. Inclined surfaces are symmetrically arranged on the ends of the sliding frame 701 corresponding to the two top plates 702. The sliding frame 701 is arranged on the side of the top plate 702 away from the square slide rod 601, and the contact surfaces of the two top plates 702 with the two inclined surfaces are arc surfaces.

[0043] It can be understood that the top plate 702 is driven to slide by the first rack 502. When the first rack 502 drives the top plate 702 to slide into place in the direction of the filter chamber, the top plate 702 pushes the sliding frame 701 toward 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, thereby changing the meshing relationship between the first gear 603 and the first rack 502.

[0044] Specifically, buffer assemblies 8 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 racks 502 and movable teeth 802 slidably arranged on the surfaces of the two guide rods 801, and connecting plates are respectively slidably connected to the surfaces of the two guide rods 801, and the two connecting plates are respectively fixedly connected to both sides of the first racks 502, and two connecting plates are respectively fixedly connected to both sides of the movable teeth 802, and the two connecting plates are slidably connected to the surfaces of the two guide rods 801, and the surfaces of the two guide rods 801 are respectively sleeved with first springs 803, and the two first springs 803 both drive the movable teeth 802 away from the first rack 502, and the initial spacing between the movable teeth 802 and one end of the first rack 502 is the same as the tooth pitch spacing of the first rack 502, and limiting rings 804 are fixedly connected to both ends of the two guide rods 801.

[0045] It can be understood that, by setting the movable tooth 802, the movable tooth 802 slides on the surfaces of the two guide rods 801. When the first gear 603 drives the first rack 502 to slide and causes one end of the buffer assembly 8 to abut against the inner wall of the cleaning chamber or the filter chamber, 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 first gear 603 after sliding. Then, the movable tooth 802 is reset by the first spring 803, meshed again and driven to move by the first gear 603. This reciprocating motion process causes a sliding tooth phenomenon to be formed between the first gear 603 and the movable tooth 802. While the first rack 502 does not disengage, 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 the rotation process, and form a meshing relationship with the other first rack 502. 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 limit ring 804, the movable tooth 802 and the limit 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.

[0046] Specifically, two groups of cleaning components 9 are arranged in an array inside the cleaning chamber. The two groups of cleaning components 9 clean the filter surfaces of the two filter screens 3 respectively. The cleaning component 9 includes a connecting shaft 901 rotatably connected to the inside of the cleaning chamber and a cleaning brush 902 fixedly mounted on the surface of the connecting shaft 901. There are a plurality of cleaning brushes 902, and a vertical array is distributed inside the cleaning chamber. A plurality of connecting shafts 901 are respectively fixedly mounted with a second gear 903 at one end away from the partition 2. A second rack 904 is vertically slidably arranged on the side of the cleaning chamber away from the partition 2. A third slider 905 is fixedly connected to the second rack 904 on the side away from the partition 2. The second rack 904 is slidably connected to the inner wall of the box body 1 through the third slider 905. The second rack 904 is meshed with a plurality of second gears 903. The plurality of cleaning brushes 902 are all arranged toward the direction of the filter screen 3.

[0047] It can be understood that the second rack 904 is vertically reciprocated on the inner wall of the cleaning chamber through the third slider 905, thereby driving multiple second gears 903 to rotate synchronously, and multiple cleaning brushes 902 are reciprocated on the filtering surface of the filter 3 through the connecting shaft 901, thereby facilitating the cleaning of the filter 3.

[0048] Specifically, a lifting assembly 10 is provided at the top of the cleaning chamber to drive 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 arranged at the bottom of the swinging member 1001. The lifting rod 1002 is square, and a pull shaft 1003 is fixedly connected to the lower end of the lifting rod 1002 near the second rack 904. The opposite sides of the two second racks 904 are respectively fixedly connected to card plates 1004. The surface of the card plates 1004 is provided with grooves for horizontal movement of the pull shaft 1003. The upper end of the lifting rod 1002 is fixedly connected to the top of the swinging member 1001 through a second spring 1005. The second spring 1005 is a tension spring. The surface of the swinging member 1001 is vertically slidably arranged There is a pressure rod 1006, the lower end of the pressure rod 1006 is in contact with the lower end of the lifting rod 1002, the upper end of the pressure rod 1006 extends to the upper surface of the box body 1, the upper end of the pressure rod 1006 is fixedly connected with an arc plate, the upper surface of the box body 1 is provided with a through groove for swinging the pressure rod 1006, the second spring 1005 is sleeved on the surface of the pressure rod 1006, the second spring 1005 pulls the lifting rod 1002 to rise and drives the upper end of the pressure rod 1006 to contact the surface of the cam 1103, the two sides of the swinging member 1001 close to the filter screen 3 are respectively fixedly connected with the third springs 1007, the upper ends of the two third springs 1007 are respectively fixedly connected to the top of the cleaning chamber, the two third springs 1007 are both obliquely arranged, and the swinging member 1001 is kept vertical by the two third springs 1007.

[0049] It can be understood that the swing member 1001 drives the lower end of the lifting rod 1002 to swing to one side, so that the pull shaft 1003 is inserted into the groove on the surface of the card plate 1004, and the pressure rod 1006 drives the lifting rod 1002 to slide downward, so that the pull shaft 1003 drives the card plate 1004 and the second rack 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 up, thereby driving the second rack 904 to reciprocate up and down, so that The cleaning brush 902 swings to clean the surface of the filter 3. Since the pressure rod 1006 and the pull shaft 1003 slide back and forth obliquely, and the second rack 904 and the card plate 1004 slide vertically, a groove is provided on the surface of the card plate 1004 so that the pull shaft 1003 can slide horizontally in the groove during the reciprocating sliding process, thereby avoiding motion interference between the pull shaft 1003 and the card plate 1004. By providing the third spring 1007, it is convenient to pull the swing member 1001 back to the vertical direction.

[0050] Specifically, a transmission assembly 11 for driving the pressure rod 1006 to slide downward is provided on the upper surface of the box body 1, and the transmission assembly 11 includes two meshing bevel gears 1101, wherein one bevel gear 1101 is fixedly assembled on the surface of the sleeve 602, and the other bevel gear 1101 is rotatably connected to the surface of the fixed plate through a bearing, and the fixed plate is fixed on the upper surface of the extension plate, so that the sliding frame 701 and the sleeve 602 simultaneously drive the two bevel gears 1101 to maintain a meshing relationship, and the transmission assembly 11 also includes a cam 1103 for pressing the pressure rod 1006, and the cam 1103 is rotatably connected to a support block through a rotating shaft, and the support block is fixedly connected to the upper surface of the box body 1, and the end of the rotating shaft away from the cam 1103 is drivingly connected to the other bevel gear 1101 through a universal shaft 1102, and the cam 1103 abuts against the pressure rod 1 006, a curved plate surface at the upper end, a top 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 extends out of the upper surface of the box body 1, a cross plate is provided at the upper end of the swing rod 13, and arc surfaces are provided on the contact surfaces between the cross plate and the top rod 12, a through groove for the movement of the swing rod 13 is provided on the upper surface of the box body 1, a guide groove 14 is provided on the side of the cleaning chamber close to the second rack 904, the guide groove 14 is a rectangular groove with three bottoms connected, the groove in the middle has inclined surfaces on both sides for facilitating the sliding of the pull shaft 1003 into the grooves on both sides, the connection position between the multiple grooves is at the lowest descending height of the grooves on the surface of the card plate 1004, and the pull shaft 1003 is arranged inside the guide groove 14 at one end away from the lifting rod 1002.

[0051] 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 chamber, the first gear 603 continues to rotate and meshes with the movable tooth 802, which can prevent the first gear 603 from being unable to rotate and getting stuck. Under the action of the two bevel gears 1101, the sliding sleeve 602 drives the cam 1103 to rotate through the universal shaft 1102, so that the cam 1103 continuously presses the pressure rod 1006 through the arc plate, so that the pressure rod 1006 drives the lifting rod 1002 and the pull shaft 1003 to reciprocate and rise and fall. By setting the universal shaft 1102, it is convenient to move the bevel gear 1101 and the cam 1103 which are not on the same concentric axis together. A transmission connection is performed. Since the second rack 904 will slide to the bottom under the action of gravity, it will drive the card plate 1004 to drop to the bottom. At this time, the groove on the surface of the card plate 1004 is at the same height as the connecting point in the guide groove 14. By setting the guide groove 14, it is convenient for the pull shaft 1003 to be accurately inserted into the groove on the surface of the card plate 1004 when deflected. By setting the push rod 12, when the filter screen 3 slides into the cleaning chamber, the push rod 12 contacts the swing rod 13, so that the swing rod 13 drives the swing member 1001 to deflect, thereby driving the lifting rod 1002 and the pull shaft 1003 to slide into the groove on the surface of the card plate 1004 through the guide groove 14.

[0052] In the present invention, in the initial state, one of the filters 3 is filtering in the filter chamber, and the other filter 3 is waiting to be used in the cleaning chamber. The housing 1 is pushed to the working position by the moving wheel, so that the first slider 405 slides on the surface of the first slide rail 404, and the height of the dust hood 403 is adjusted. The position of the dust hood 403 is adjusted to the direction in which the dust is dispersed during the construction process, so as to inhale the dust to the greatest extent. The exhaust fan 401 is operated to generate negative pressure in the filter chamber. Under the action of the dust hood 403 and the aluminum foil telescopic tube 402, the dust generated during the construction process is sucked into the filter chamber. Under the action of multiple guide plates 406, the airflow is dispersed to the surface of the filter 3 to improve the filtering effect. The dust in the air is filtered, and the filtered air is discharged through the air outlet. Under the action of the air pressure sensor 18, the air pressure of the filtered part of the cleaning chamber can be monitored. When the air pressure is less than the preset value, it means that the filter 3 is not ventilated smoothly and is in a blocked state. At this time, the square slide bar 601 is driven to rotate by the driving motor, and the slide sleeve 602 and the two first gears 603 are driven to rotate. Under the meshing relationship between one of the first gears 603 and one of the first racks 502, one of the filter nets 3 is driven to slide into the cleaning chamber through the second slide rail 501 and the first rack 502. At the same time, the other filter net 3 is driven into the filter chamber for filtering. When one end of the first rack 502 matched with one of the filter nets 3 passes through the buffer assembly 8 When the inner wall of the cleaning chamber is in contact, one of the first gears 603 is meshed with the movable tooth 802, and the first gear 603 gear continues to rotate. At this time, one of the first gears 603 drives the movable tooth 802 to move, and the movable tooth 802 is disengaged from the first gear 603 after sliding. Then the movable tooth 802 is reset by the first spring 803, meshed again and driven to move by the first gear 603. This reciprocating motion process causes a sliding tooth phenomenon to form between the first gear 603 and the movable tooth 802, so that the sliding sleeve 602 can continue to rotate. At the same time, the top rod 12 is in contact with the swing rod 13, so that the swing rod 13 drives the swing member 1001 to deflect, thereby driving the lifting rod 1002 and the pull shaft 1003 to deflect. Under the action of the guide groove 14, the pull shaft 1003 can be accurately inserted into the groove on the surface of the card plate 1004 when deflected. Under the action of the two bevel gears 1101, the sliding sleeve 602 drives the cam 1103 to rotate through the universal shaft 1102, so that the cam 1103 continuously presses the pressure rod 1006 through the arc plate, and drives the lifting rod 1002 and the pull shaft 1003 to slide downward through the pressure rod 1006, thereby driving the card plate 1004 and the second rack 904 to slide downward. Under the action of the second spring 1005, the lifting rod 1002 and the pull shaft 1003 are driven to rise and reset, and at the same time, the second rack 904 is raised and reset, so that the second rack 904 slides back and forth, driving multiple second gears 903 to rotate synchronously.The cleaning brushes 902 are made to swing back and forth on the filtering surface of the filter 3 through the connecting shaft 901 to clean the filtering surface of the filter 3. The cleaned dust falls into the collection box 15. Since the filter chamber and the cleaning chamber are separated by the partition 2, and the through grooves on the surface of the partition 2 are closed by the fixed frame, the cleaned dust will not be blown to the surface of the filter 3 in the filter chamber by the airflow again, so that the filter 3 is prevented from being blocked too quickly and affecting the airflow. When one of the filters 3 is cleaned, the filtering work is performed on the other filter 3. When the air pressure sensor 18 detects that the air pressure becomes smaller, indicating that the other filter 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 3 are sent into the filter chamber. When one of the filters 3 slides into the filter chamber, the top rod 12 is separated from the swing rod 13. Under the action of the two third springs 1007, the swing member 1001 and the lifting rod 1002 are pulled to swing to vertical, and the pull shaft 1003 slides to the upper and lower sides during the up and down reciprocating motion. In the middle of the guide groove 14, when one of the filter screens 3 is about to slide into place, the first rack 502 drives the top plate 702 to resist the sliding frame 701, so that the top plate 702 pushes the sliding frame 701 toward 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 one of the first gears 603 is disengaged from one of the first racks 502, and the other first gear 603 is engaged with the other first rack 502, and 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 the cleaning chamber for cleaning, so that the two filter screens 3 slide into the cleaning chamber for cleaning through the second slide rail 501 and the first rack 502 alternately, and always keep a filter screen 3 in the filter chamber for filtering, so that the dust handling device can achieve the purpose of continuous dust collection and improve work efficiency. By opening the cover plate 16, the dust in the collection box 15 is cleaned.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0055] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A construction dust treatment device, comprising a housing (1), characterized in that: The interior of the box body (1) is divided into a cleaning chamber and a filtering chamber by a partition (2); two filtering screens (3) are vertically arranged inside the filtering chamber; the two filtering screens (3) slide into the interior of the cleaning chamber via a sliding assembly (5); a transposition assembly (6) for driving the two filtering screens (3) to slide alternately is arranged on the top of the box body (1); the transposition assembly (6) comprises a square sliding rod (601) and two first gears (603) slidably arranged on the surface of the square sliding rod (601); the two first gears (603) slide via a sliding assembly (7); and a cleaning assembly (9) for cleaning the two filtering screens (3) respectively is arranged inside the cleaning chamber.

2. A construction dust treatment device according to claim 1, characterized in that: The sliding assembly (5) comprises a second sliding rail (501) fixed to the bottom of the box body (1) and a first rack (502) fixed to the upper surface of the filter screen (3); the bottom of the filter screen (3) is slidably connected to the surface of the second sliding rail (501), and the top of the filter screen (3) slides on the top of the box body (1) via the first rack (502).

3. 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); both ends of the square slide bar (601) are rotatably connected to the inner wall of the protective shell (17) via bearings; a sliding sleeve (602) is slidably connected to the surface of the square slide bar (601); two first gears (603) are fixedly mounted on the surface of the sliding sleeve (602); the two first gears (603) are respectively alternately meshed with the two first racks (502).

4. 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) via a bearing; the two top plates (702) push the sliding frame (701) and the two first gears (603) to slide.

5. A construction dust treatment device according to claim 2, characterized in that: The cleaning assembly (9) comprises a connecting shaft (901) rotatably connected to the inside 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) reciprocate through a plurality of second gears (903) and second racks (904).

6. A construction dust treatment device according to claim 5, characterized in that: A lifting assembly (10) is arranged at the top of the cleaning chamber to drive 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 arranged at the bottom of the swinging member (1001). A pull shaft (1003) is fixedly connected to the lower end of the lifting rod (1002) close to 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 vertically slidably arranged on the surface of the swinging member (1001).

7. A construction dust treatment device according to claim 6, characterized in that: The upper surface of the box body (1) is provided with a transmission assembly (11) for driving the pressure rod (1006) to slide downwards. The transmission assembly (11) comprises two meshing bevel gears (1101) and a cam (1103) for pressing the pressure rod (1006). The cam (1103) is drivingly connected to one of the bevel gears (1101) via a universal shaft (1102). The cam (1103) abuts against the surface of the arc plate at the upper end of the pressure rod (1006).

8. A construction dust treatment device according to claim 7, characterized in that: A push rod (12) is fixedly connected to the opposite surfaces of the two first racks (502), and 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 of the cleaning chamber close to the second rack (904).

9. A construction dust treatment device according to claim 2, characterized in that: Buffer assemblies (8) for preventing the first gear (603) from getting stuck are respectively arranged at both ends of the two first racks (502), and the buffer assemblies (8) comprise two guide rods (801) respectively sliding on both sides of the first racks (502) and movable teeth (802) slidably arranged on the surfaces of the two guide rods (801).

10. 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), the dust collection assembly (4) comprising an exhaust fan (401) fixedly mounted on the upper surface of the box body (1), the filter cavity being connected to a dust collection hood (403) via an aluminum foil telescopic tube (402), the dust collection hood (403) vertically sliding on the surface of a first slide rail (404) via a first slide block (405).

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