Indoor dust filtering device for safety engineering

Abstract

The invention relates to the field of safety engineering, in particular to an indoor dust filtering device for safety engineering, which comprises a controller and a cyclone dust removal assembly for screening large-diameter dust, a filtering assembly for filtering small-diameter pollutants is arranged above the cyclone dust removal assembly, and an air injection assembly for injecting air to remove dust is arranged above the filtering assembly. A shaking assembly used for shaking dust removal is arranged on the side of the filtering assembly, and a collecting assembly used for collecting dust is arranged below the cyclone dust removal assembly; the shaking assembly comprises a double-head driving part, a first sliding rail and a second sliding rail; a guide plate is fixedly connected to one side of the double-end driving piece, a wavy sliding groove is formed in the guide plate, and a first sliding block is arranged in the wavy sliding groove in a sliding fit mode. Through linkage of the shaking assembly and the air injection assembly, composite dust removal is achieved, dust removal dead angles are reduced, the collecting assembly is arranged to collect screened dust, dust backflow is reduced, secondary pollution can be reduced, and the dust removal efficiency is overall improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of safety engineering, and in particular to an indoor dust filtering device for safety engineering. BACKGROUND

[0002] In the field of safety engineering, indoor dust pollution widely exists in industrial production workshops (such as machining, building material grinding), laboratory operations, building decoration, etc. Dust not only harms the respiratory health of operating personnel, but also may cause equipment failure, reduce production accuracy, and even form an explosion hazard at a specific concentration. Therefore, an efficient indoor dust filtering device becomes a key equipment to protect the safety of the indoor environment and the health of personnel.

[0003] In the prior art, for example, the Qinglan Environmental Protection QL-B type industrial indoor cloth bag type dust filtering machine generates negative pressure through an internal fan to suck indoor dust-containing gas from the air inlet into the equipment. The gas first passes through a primary metal filter screen to preliminarily intercept large-particle dust with a particle size greater than 10 μm. Then the dust-containing gas enters the cloth bag filtering area, and the small-diameter dust with a particle size of 0.5-10 μm is intercepted and filtered by the high-molecular fiber cloth bag. The filtered clean gas is discharged through the air outlet to achieve indoor air purification. After a certain period of equipment operation, the cloth bag is periodically cleaned by a pulse jet device. The accumulated dust from the cleaning falls into the bottom ash hopper for collection, and the dust disposal is finally completed by manually cleaning the ash hopper. The device meets the basic purification requirements of indoor air quality in the field of safety engineering.

[0004] However, in actual use of the cloth bag type dust filtering machine, the device has a single dust cleaning method, which only relies on pulse jet cleaning. The coverage range of the jet flow has limitations, and dead angles for dust cleaning are easily formed at the cloth bag creases and edge areas. Small-diameter dust is easily embedded in the gap between the cloth bag fibers and continuously accumulates. After long-term use, the cloth bag filtering resistance significantly increases. The bottom ash hopper and the cloth bag filtering area are only isolated by a simple butterfly valve. During the air flow fluctuation process of the fan start-stop and pulse jet cleaning, the dust collected in the ash hopper is easily carried back to the filtering area by the reverse air flow, forming secondary pollution. Therefore, it is necessary to propose an indoor dust filtering device for safety engineering. SUMMARY

[0005] To solve the above problems, the present application provides an indoor dust filtering device for safety engineering, which is used to shake and shake off dust by driving the filtering assembly, and to use the jet assembly for jet cleaning, to realize multiple dust cleaning methods, reduce dust cleaning dead angles, and set the collection assembly to collect the screened dust, reduce dust backflow, and further improve the filtering efficiency.

[0006] In order to achieve the above object, the technical scheme of the present application is as follows: An indoor dust filtering device for safety engineering, comprising a controller and a cyclone dust removal assembly for screening large-diameter dust, a filtering assembly above the cyclone dust removal assembly for filtering small-diameter pollutants, a jetting assembly above the filtering assembly for jetting dust removal, a shaking assembly on the side of the filtering assembly for shaking dust removal, a flow guide assembly at the bottom of the cyclone dust removal assembly for reducing dust backflow, and a collecting assembly below the cyclone assembly for collecting dust; the shaking assembly comprises a double-head driving member, a first sliding rail and a second sliding rail, the double-head driving member is electrically connected with the controller, a guide plate is fixedly connected to one side of the double-head driving member, a wave-shaped sliding groove is formed in the guide plate, a first sliding block is slidably fitted in the wave-shaped sliding groove, a third transmission rod is fixedly connected to one end of the first sliding block, a second rotating rod is rotatably fitted to the other end of the third transmission rod, a first rotating rod is rotatably fitted to the other end of the second rotating rod, and the other end of the first rotating rod is coaxially fixedly connected with the output end of one end of the double-head driving member; the other output shaft of the double-head driving member is fixedly connected with the jetting assembly; a sliding rod is fixedly connected to the end of the first sliding block away from the third transmission rod, the other end of the sliding rod is slidably fitted with the second sliding rail, a second support column is fixedly connected to the side of the second sliding rail away from the sliding rod, a plurality of second sliding blocks are fixedly connected to the side of the second support column away from the second sliding rail, the second sliding blocks are slidably fitted with the first sliding rail, and the bottom of the first sliding rail is fixedly connected with the cyclone dust removal assembly; a first support plate is fixedly connected to the top of the second support column, and the first support plate is fixedly connected with the filtering assembly on one side.

[0007] The technical principle of the above scheme is as follows: The cyclone dust removal assembly inhales indoor gas and preliminarily screens large-particle dust, discharges to the collecting assembly, and discharges the preliminarily processed gas flow upward through the filtering assembly; when the filtering assembly needs to be cleaned due to serious dust accumulation, the cyclone dust removal assembly is stopped, the double-head driving member is started, one end of the double-head driving member drives the jetting assembly to jet dust removal on the filtering assembly, and the other end of the double-head driving member drives the first rotating rod and shakes the filtering assembly up and down, thereby shaking and cleaning the filtering assembly.

[0008] The above scheme has the following beneficial effects: 1、The double-head driving member simultaneously drives the shaking assembly and the jetting assembly in the present scheme, realizes double dust removal mode, the mechanical force generated by shaking can shake off the dust embedded in the deep layer of the filtering assembly, and the jetting airflow can blow off the surface dust, thereby effectively eliminating dust removal dead angles.

[0009] 2、The flow guide assembly is arranged at the bottom of the cyclone dust removal assembly in the present scheme, which can effectively block the reverse flow of dust when the airflow fluctuates, and greatly reduces the secondary pollution phenomenon in combination with the collecting assembly.

[0010] 3. This solution uses a cyclone dust collector to pre-separate large dust particles, reducing the direct impact and wear of large-diameter dust on the filter components. Combined with a dual dust removal mechanism, it reduces the accumulation of small-diameter dust, significantly reducing the operating resistance of the filter components.

[0011] Furthermore, the cyclone dust removal assembly includes an air pump, a dust collection cylinder, an inlet pipe, and an outlet pipe. The air pump is electrically connected to the controller. The top of the dust collection cylinder is fixedly connected to the bottom of the first slide rail. One end of the inlet pipe passes through the side wall of the dust collection cylinder and is fixedly connected to the dust collection cylinder. The other end of the inlet pipe is fixedly connected to the output end of the air pump. One end of the outlet pipe passes through the top wall of the dust collection cylinder and extends to the conical area at the bottom of the dust collection cylinder and is fixedly connected to the dust collection cylinder. The other end of the outlet pipe is fixedly connected to the filter assembly. A dust outlet is opened at the bottom of the dust collection cylinder.

[0012] Beneficial effects: The air pump draws indoor air into the dust collection cylinder, where the airflow forms a rotating airflow that centrifuges and removes large dust particles, which are then discharged through the dust outlet. This provides initial dust removal for the air. Subsequently, the air is delivered to the filter assembly, where the reduced dust lowers the pressure on the filter assembly and reduces dust accumulation.

[0013] Furthermore, the filter assembly includes a folded tube, one end of which is fixedly connected to the end of the air outlet pipe away from the dust collector, and the other end of the folded tube is fixedly connected to a filter element, the outer wall of which is fixedly connected to one side of the first support plate.

[0014] Beneficial effects: When the shaking component drives the filter element to shake up and down, the folded tube provides expansion and contraction space while maintaining a certain degree of fixation, ensuring smooth airflow and dust passage. The filter element can filter small-diameter dust and pollutants.

[0015] Furthermore, the jet assembly includes a first support column, a guide column, and a piston cylinder. The bottom of the first support column is fixedly connected to a first support plate, and a pressure tank is fixedly connected to the top of the first support column. One end of the pressure tank is fixedly connected to a jet component, and the other end of the pressure tank has an air inlet. A solenoid valve is fixedly connected to the connection between the pressure tank and the jet component. The solenoid valve is electrically connected to a controller. A pressure sensor is fixedly connected to the inner wall of the pressure tank. The pressure sensor is used to detect the pressure signal inside the pressure tank and transmit the pressure signal to the controller. The side of the dual-head drive component away from the output shaft of the first rotating rod... A fourth rotating rod is fixedly connected to the piston cylinder. A third rotating rod is rotatably connected to the other end of the fourth rotating rod. A piston rod is rotatably connected to the other end of the third rotating rod. The piston rod passes through the guide column and the bottom wall of the piston cylinder and is slidably connected to both. A piston plate is fixedly connected to the end of the piston rod away from the third rotating rod. The piston plate is slidably connected to the inner wall of the piston cylinder. A fourth support column is fixedly connected to the outer wall of the piston cylinder. The bottom of the fourth support column is fixedly connected to the top of the double-headed drive component. An air inlet and an air outlet are opened on the top wall of the piston cylinder. A one-way valve is fixedly connected inside the air inlet, and the air outlet is fixedly connected to the air inlet.

[0016] Beneficial effects: The piston rod and the piston plate are driven by the double-head driving member, the gas is compressed by the pressure tank, the compressed gas is released through the jet member when the electromagnetic valve is opened when the gas pressure sensor senses that the gas pressure reaches the set value, and the filter member can be jetted and cleaned at a certain time interval.

[0017] Further, the guide assembly comprises a second support plate, a cross baffle, a first transmission rod and a second transmission rod, the cross baffle is located at the dust outlet, one side of the second support plate is fixedly connected with the outer sidewall of the dust removal cylinder, the first transmission rod penetrates the second support plate and is rotationally matched with the second support plate, the output shaft of the double-head driving member close to the first transmission rod is coaxially fixedly connected with a first main bevel gear, one end of the first transmission rod is fixedly connected with a first slave bevel gear, the first main bevel gear is meshed with the first slave bevel gear, the second end of the first transmission rod away from the first slave bevel gear is fixedly connected with a second main bevel gear, one end of the second transmission rod is fixedly connected with a second slave bevel gear, the other end of the second transmission rod penetrates the bottom sidewall of the dust removal cylinder and is coaxially fixedly connected with the cross shaft of the cross baffle, and the second main bevel gear is meshed with the second slave bevel gear.

[0018] Beneficial effects: The second transmission rod is driven by the double-head driving member, the cross baffle is rotated around the cross shaft by the second transmission rod, when the dust particles in the dust removal cylinder fall to the cross baffle due to gravity, the dust particles are sent out to the outside by the cross baffle and fall into the collection assembly, and the dust from the outside is prevented from entering the dust removal cylinder from the dust outlet to a certain extent.

[0019] Further, the collection assembly comprises a dust collection box, the sidewall of the dust collection box is fixedly connected with a fixing seat, the top of the fixing seat is fixedly connected with the air inlet pipe, the bottom of the fixing seat is fixedly connected with a fixing shaft, the fixing shaft is rotationally matched with an electric push rod, the electric push rod is electrically connected with a controller, the output end of the electric push rod is rotationally matched with an L-shaped transmission rod, the other end of the L-shaped transmission rod is fixedly connected with a rotating shaft, the rotating shaft penetrates the sidewall of the dust collection box and is rotationally matched with the sidewall, the sidewall of the rotating shaft is fixedly connected with a dust blocking plate, and the inner bottom wall of the dust collection box is fixedly connected with a pressure sensor.

[0020] Beneficial effects: In the initial state, the dust blocking plate is opened, the dust accumulates at the bottom of the dust collection box, and the dust blocking plate opening amplitude is reduced synchronously when the dust gravity rises, thereby reducing the outward escape of the dust when the dust accumulates in a large amount, and further preventing the dust from flowing back to the dust removal cylinder through the dust outlet.

[0021] Further, the inner sidewall of the dust removal cylinder is fixedly connected with a spiral guide vane.

[0022] Beneficial effect: when the gas enters the dust removal cylinder through the air inlet pipe, the spiral guide vane can guide the gas to spiral downward, better and faster to form a downward rotating airflow until the conical area at the bottom of the dust removal cylinder, improving the efficiency of airflow passing, when guiding the airflow carrying dust, dust is easy to adhere to the spiral guide vane, by setting a certain degree of inclination between the spiral guide vane and the inner wall of the dust removal cylinder, it can help the dust to fall by gravity, reducing dust accumulation.

[0023] Further, the surface of the filter piece is fixedly connected with a PTFE coating.

[0024] Beneficial effect: when the gas passes through the filter piece, the micropores of the PTFE coating can intercept dust below 1μm in diameter, and keep the airflow unobstructed, improving the filtering capacity, and the surface of the PTFE coating is smooth, dust is not easy to stick, and dust is easy to fall off when shaking and blowing.

[0025] Further, the bottom of the guide plate is fixedly connected with a plurality of third support columns, and the third support columns are fixedly connected with the top of the dust removal cylinder.

[0026] Beneficial effect: when the double-head driving piece drives the first sliding block to slide in the wave-shaped sliding groove on the guide plate, a large vibration will be generated, and the third support column can provide a certain degree of support for the guide plate, reducing the vibration of the guide plate and improving the service life of the guide plate.

[0027] Further, the bottom surface of the ash plate is fixedly connected with a plurality of sprayers, and the sprayers are electrically connected with the controller.

[0028] Beneficial effect: dust is easy to disperse when impacted, when the pressure sensor senses that the weight of the accumulated dust in the dust collection box reaches the set value, the controller controls the sprayer to spray and moisten the dust in the dust collection box, so that the dust is clumped, small particle dust is combined into large particle dust, and dust dispersion is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a right side isometric view of the embodiment of the indoor dust filtering device for safety engineering.

[0030] Figure 2 It is a left side isometric view of the embodiment of the indoor dust filtering device for safety engineering. Figure 1 It is an enlarged view of part A.

[0031] Figure 3 It is an isometric view of the embodiment of the indoor dust filtering device for safety engineering.

[0032] Figure 4 It is a left side isometric view of the embodiment of the indoor dust filtering device for safety engineering. Figure 3 It is an enlarged view of part B.

[0033] Figure 5 It is a sectional view of the embodiment of the indoor dust filtering device for safety engineering.

[0034] Figure 6 It is a shaking assembly schematic view of the indoor dust filtering device for safety engineering of the present application.

[0035] The reference signs in the drawings of the specification include: 1, dust removal cylinder; 2, air inlet pipe; 3, air outlet pipe; 4, folding pipe; 5, air injection part; 6, pressure storage tank; 7, first support column; 8, first support plate; 9, second support column; 10, first sliding rail; 11, second sliding rail; 12, guide plate; 13, double-end driving part; 14, third support column; 15, first rotating rod; 16, second rotating rod; 17, piston rod; 18, third rotating rod; 19, fourth rotating rod; 20, sliding rod; 21, first sliding block; 22, filtering part; 23, first transmission rod; 24, second transmission rod; 25, fixed seat; 26, dust collection box; 27, fixed shaft; 28, electric push rod; 29, L-shaped transmission rod; 30, rotating shaft; 31, piston cylinder; 32, guide column; 33, second support plate; 34, dust blocking plate; 35, fourth support column; 36, cross blocking plate; 37, second sliding block; 38, third transmission rod. DETAILED DESCRIPTION

[0036] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0037] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting” should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] The following detailed description illustrates the specific implementation method: Example 1:

[0040] As attached Figure 1 As shown: An indoor dust filtration device for safety engineering includes a controller and a cyclone dust collector for screening large-diameter dust. Above the cyclone dust collector is a filter component for filtering small-diameter pollutants. Above the filter component is an air jet component for air jet cleaning. On the side of the filter component is a shaking component for shaking cleaning. At the bottom of the cyclone dust collector is a flow guide component for reducing dust backflow. Below the cyclone component is a collection component for collecting dust.

[0041] As shown in Figures 1, 2, and 6, the jittering component includes a dual-head drive unit 13, a first slide rail 10, and a second slide rail 11. The dual-head drive unit 13 is electrically connected to the controller.

[0042] A guide plate 12 is bolted to one side of the dual-head drive unit 13. A wavy groove is opened on the guide plate 12. A first slider 21 is slidably fitted in the wavy groove. A third transmission rod 38 is bolted to one end of the first slider 21. A second rotating rod 16 is rotatably fitted to the other end of the third transmission rod 38. A first rotating rod 15 is rotatably fitted to the other end of the second rotating rod 16. The other end of the first rotating rod 15 is coaxially bolted to one output end of the dual-head drive unit 13. The other output shaft of the dual-head drive unit 13 is bolted to the jet assembly.

[0043] The first slider 21 is bolted to a slide rod 20 at one end away from the third transmission rod 38. The other end of the slide rod 20 is slidably engaged with the second slide rail 11. A second support column 9 is welded to the side of the second slide rail 11 away from the slide rod 20. Several second sliders 37 are bolted to the side of the second support column 9 away from the second slide rail 11. All the second sliders 37 are slidably engaged with the first slide rail 10. The bottom of the first slide rail 10 is bolted to the cyclone dust removal assembly. A first support plate 8 is bolted to the top of the second support column 9. One side of the first support plate 8 is bolted to the filter assembly.

[0044] Specifically, as shown in Figure 6, the output shaft at one end of the dual-head drive 13 drives the first rotating rod 15 to rotate, and the other end of the first rotating rod 15 drives one end of the second rotating rod 16 to rotate. The other end of the second rotating rod 16 pushes the third transmission rod 38 to drive the first slider 21 to slide along the wave-shaped groove. The other end of the first slider 21 drives the slide rod 20 to slide on the second slide rail 11. When the first slider 21 drives the slide rod 20 to move up and down, the second slide rail 11 is simultaneously driven up and down by the slide rod 20. At this time, the second slide rail 11 drives the second support column 9 to cooperate with the second slider 37 to slide up and down on the first slide rail 10, thereby driving the first support plate 8 and the filter assembly to move up and down.

[0045] like Figure 1 andFigure 3 As shown, the cyclone dust collector assembly includes an air pump, a dust collector cylinder 1, an inlet pipe 2, and an outlet pipe 3; the air pump is electrically connected to the controller; the top of the dust collector cylinder 1 is bolted to the bottom of the first slide rail 10; one end of the inlet pipe 2 is fixedly connected to the dust collector cylinder 1, and the other end of the inlet pipe 2 is fixedly connected to the output end of the air pump; one end of the outlet pipe 3 penetrates the top wall of the dust collector cylinder 1 and extends to the bottom of the dust collector cylinder 1, and is fixedly connected to the dust collector cylinder 1; the other end of the outlet pipe 3 is fixedly connected to the filter assembly; and a dust outlet is opened at the bottom of the dust collector cylinder 1.

[0046] Specifically, as shown in Figure 5, the air pump compresses the indoor gas into the air inlet pipe 2 and into the dust collector 1. The gas flows in a ring along the inner wall of the dust collector 1 to form a rotating airflow and moves downward. After reaching the conical area at the bottom of the dust collector 1, the airflow reverses and enters the air outlet pipe 3. During the rotation of the airflow in the dust collector 1, large-diameter dust is centrifuged and screened out. The dust is discharged from the dust collector 1 through the dust outlet. After the airflow enters the air outlet pipe 3, it is filtered again by the filter assembly to remove small-diameter dust and pollutants.

[0047] like Figure 3 As shown, the filter assembly includes a folded tube 4. One end of the folded tube 4 is fixedly connected to the end of the air outlet pipe 3 away from the dust collector 1. The other end of the folded tube 4 is bolted to a filter element 22. The outer wall of the filter element 22 is bolted to one side of the first support plate 8.

[0048] Specifically, the folded tube 4 can extend and retract longitudinally, but remains fixed to a certain extent laterally. When the filter element 22 is moved up and down by the first support plate 8, the airflow discharged from the outlet pipe 3 can stably pass through the folded tube 4 and then be filtered by the filter element 22.

[0049] like Figure 3 and Figure 4 As shown, the jet assembly includes a first support column 7, a guide column 32, and a piston cylinder 31. The bottom end of the first support column 7 is bolted to the first support plate 8, and the top end of the first support column 7 is bolted to a pressure tank 6. One end of the pressure tank 6 is fixedly connected to a jet component 5, and the other end of the pressure tank 6 has an air inlet. A solenoid valve is fixedly connected at the connection between the pressure tank 6 and the jet component 5, and the solenoid valve is electrically connected to the controller.

[0050] A pressure sensor is attached to the inner wall of the pressure tank 6. The pressure sensor is used to detect the pressure signal inside the pressure tank 6 and transmit the pressure signal to the controller.

[0051] The fourth rotating rod 19 is bolted to the side away from the output shaft of the first rotating rod 15 of the double-headed driving piece 13, the third rotating rod 18 is rotatably connected to the other end of the fourth rotating rod 19, the piston rod 17 is rotatably connected to the other end of the third rotating rod 18, the piston rod 17 penetrates through the guide column 32 and the bottom wall of the piston cylinder 31 and is in sliding fit with them, the piston plate is welded to the end of the piston rod 17 away from the third rotating rod 18, the piston plate is in sliding fit with the inner side wall of the piston cylinder 31, the fourth supporting column 35 is bolted to the outer side wall of the piston cylinder 31, the bottom of the fourth supporting column 35 is bolted to the top of the double-headed driving piece 13, the top wall of the piston cylinder 31 is provided with an air inlet and an air outlet, the air inlet is fixedly connected with a one-way valve, and the air outlet is fixedly connected with the air inlet hole.

[0052] Specifically, the fourth rotating rod 19 is driven to rotate by the double-headed driving piece 13 away from the output shaft of the first rotating rod 15, the third rotating rod 18 is driven to rotate by the other end of the fourth rotating rod 19, the piston rod 17 is driven to move by the other end of the third rotating rod 18, the piston rod 17 reciprocates in the guide column 32, the piston plate is driven to reciprocate in the piston cylinder 31 by the other end of the piston rod 17, the flow direction of the one-way valve is from the outside to the piston cylinder 31, at this time, the outside gas is sucked into the piston cylinder 31 through the air inlet, the gas is transported to the air inlet hole through the air outlet and enters the pressure storage tank 6, when the air pressure sensor detects that the air pressure reaches 0.8 MPa, the controller opens the electromagnetic valve to release the gas, and the gas is sprayed to the filter 22 through the air jet piece 5 to blow off the dust.

[0053] As shown in Figure 1 and Figure 5 , the flow guide assembly includes a second supporting plate 33, a cross baffle 36, a first transmission rod 23 and a second transmission rod 24. The cross baffle 36 is located at the dust outlet, the second supporting plate 33 is welded to one side of the outer side wall of the dust removal cylinder 1, and the first transmission rod 23 penetrates through the second supporting plate 33 and is in rotatable fit with the second supporting plate 33.

[0054] The first main bevel gear is coaxially bolted to the output shaft of the first rotating rod 15 close to the double-headed driving piece 13, the first transmission rod 23 is bolted at one end with the first slave bevel gear, and the first main bevel gear is in mesh with the first slave bevel gear.

[0055] The second main bevel gear is bolted to the end of the first transmission rod 23 away from the first slave bevel gear, the second transmission rod 24 is bolted at one end with the second slave bevel gear, the other end of the second transmission rod 24 penetrates through the bottom side wall of the dust removal cylinder 1 and is coaxially welded with the cross shaft of the cross baffle 36, and the second main bevel gear is in mesh with the second slave bevel gear.

[0056] Specifically, the double-head driving member 13 drives the first main bevel gear to rotate near the output end of the first rotating rod 15, so as to drive the first driven bevel gear and the first transmission rod 23 to rotate, the first transmission rod 23 drives the second transmission rod 24 to rotate through the second main bevel gear and the second driven bevel gear, and the second transmission rod 24 drives the cross baffle 36 to rotate, so that the dust falling into the dust outlet in the dust removal cylinder 1 is unidirectionally discharged. In the embodiment, the dust removal cylinder 1 and the cross baffle 36 both belong to the cyclone dust collector in the prior art, and the essence is to form a rotating air flow through the cylindrical barrel to centrifugally screen the dust, and then to fall to the bottom of the dust discharging part through the gravity to be discharged, while reducing the backflow of the dust, which belongs to the prior art, and the embodiment will not be described in detail.

[0057] As shown in Figure 1 and Figure 2 and Figure 3 As shown in the accompanying drawings, the collecting assembly includes a dust collecting box 26, a fixed seat 25 is welded on the side wall of the dust collecting box 26, the top of the fixed seat 25 is welded with the air inlet pipe 2, the bottom of the fixed seat 25 is welded with a fixed shaft 27, the fixed shaft 27 is rotationally matched with an electric push rod 28, the electric push rod 28 is electrically connected with a controller, the output end of the electric push rod 28 is rotationally matched with an L-shaped transmission rod 29, the other end of the L-shaped transmission rod 29 is welded with a rotating shaft 30, the rotating shaft 30 penetrates through the side wall of the dust collecting box 26 and is rotationally matched therewith, the side wall of the rotating shaft 30 is bolted with a dust blocking plate 34, and the inner bottom wall of the dust collecting box 26 is bonded with a pressure sensor, which is used to detect the weight signal in the dust collecting box 26 and transmit the weight signal to the controller.

[0058] Specifically, after the dust falls into the dust collecting box 26, it slides along the dust blocking plate 34 to the inside of the dust collecting box 26, when the pressure sensor detects that the weight of the accumulated dust increases, the controller controls the electric push rod 28 to push the L-shaped transmission rod 29 synchronously with the increase of the weight of the dust, the other end of the L-shaped transmission rod 29 drives the rotating shaft 30 to rotate, and the rotating shaft 30 drives the dust blocking plate 34 to rotate, thereby reducing the opening of the dust collecting box 26 and reducing the dust raising.

[0059] The application can adapt to various dust mixed scenes by inhaling indoor gas and preliminarily removing dust through the cyclone dust removal assembly, then conveying the preliminarily removed gas to the filtering assembly for secondary dust removal and filtration, and finally discharging the remaining small-diameter dust particles in the gas, so as to complete the indoor dust filtration, remove the accumulated dust on the filtering assembly through the linkage of the shaking assembly and the air jet assembly, further reduce the dust removal dead angle compared with the traditional dust removal method, and finally collect the dust through the collecting assembly, reduce the dust raising, and avoid secondary pollution.

[0060] Embodiment 2:

[0061] As shown in the accompanying drawings, Figure 1 The difference between the embodiment 1 and the embodiment 2 is that the inner side wall of the dust removal cylinder 1 is welded with a spiral guide vane.

[0062] Specifically, the air flow enters the dust removal cylinder 1 through the air inlet pipe 2, and forms a rotating air flow downward along the spiral guide vanes. The included angle between the spiral guide vanes and the inner wall of the dust removal cylinder 1 is set to 45 degrees, and the dust removed by the centrifugal screen will slide to the bottom of the dust removal cylinder 1 due to gravity.

[0063] The surface of the filter 22 is bonded with a PTFE film. When the air flow passes through the filter 22, the gas passes through the micropores of 0.1-0.5 μm on the film, and small-diameter dust and pollutants larger than the micropore diameter are blocked.

[0064] The bottom of the guide plate 12 is bolted with a plurality of third support columns 14, and the third support columns 14 are bolted with the top of the dust removal cylinder 1. The third support columns 14 further support and fix the guide plate 12, reducing the vibration of the guide plate 12 during work.

[0065] The bottom of the dust blocking plate 34 is bolted with a plurality of sprayers, and the sprayers are electrically connected with the controller. When the electric push rod 28 is shortened to half the stroke, the controller opens the sprayers to spray the dust in the dust collection box 26. In this embodiment, the sprayers are externally connected with a water source through a water pipe.

[0066] Obviously, the above embodiments are only examples for clear illustration, and are not limitations to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments do not need to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A safety engineering indoor dust filtering device, characterized by, The dust collector comprises a controller and a cyclone dust removal assembly for screening large-diameter dust, a filter assembly for filtering small-diameter pollutants is arranged above the cyclone dust removal assembly, an air injection assembly for air injection dust removal is arranged above the filter assembly, a shaking assembly for shaking dust removal is arranged on the side of the filter assembly, a flow guide assembly for reducing dust backflow is arranged at the bottom of the cyclone dust removal assembly, and a collection assembly for collecting dust is arranged below the cyclone dust removal assembly. The shaking assembly comprises a double-head driving member (13), a first sliding rail (10) and a second sliding rail (11); the double-head driving member (13) is electrically connected with the controller, and a guide plate (12) is fixedly connected to one side of the double-head driving member (13); a wave-shaped sliding groove is formed in the guide plate (12); a first sliding block (21) is slidably arranged in the wave-shaped sliding groove; a third transmission rod (38) is fixedly connected to one end of the first sliding block (21); a second rotating rod (16) is rotatably arranged at the other end of the third transmission rod (38); a first rotating rod (15) is rotatably arranged at the other end of the second rotating rod (16); and the other end of the first rotating rod (15) is coaxially fixedly connected with the output end of one end of the double-head driving member (13); and the other output shaft of the double-head driving member (13) is fixedly connected with the air injection assembly. The other end of the first sliding block (21) away from the third transmission rod (38) is fixedly connected with a sliding rod (20); the other end of the sliding rod (20) is slidably arranged in the second sliding rail (11); a second supporting column (9) is fixedly connected to one side of the second sliding rail (11) away from the sliding rod (20); a plurality of second sliding blocks (37) are fixedly connected to one side of the second supporting column (9) away from the second sliding rail (11); the second sliding blocks (37) are slidably arranged in the first sliding rail (10); and the bottom of the first sliding rail (10) is fixedly connected with the cyclone dust removal assembly.

2. The indoor dust filtering apparatus for safety engineering according to claim 1, wherein The cyclone dust removal assembly comprises an air pump, a dust removal cylinder (1), an air inlet pipe (2) and an air outlet pipe (3); and the air pump is electrically connected with the controller. The top of the dust removal cylinder (1) is fixedly connected with the bottom of the first sliding rail (10); one end of the air inlet pipe (2) is fixedly connected with the dust removal cylinder (1); the other end of the air inlet pipe (2) is fixedly connected with the output end of the air pump; one end of the air outlet pipe (3) penetrates through the top wall of the dust removal cylinder (1) and extends to the bottom of the dust removal cylinder (1) to be fixedly connected with the dust removal cylinder (1); the other end of the air outlet pipe (3) is fixedly connected with the filter assembly; and a dust outlet is formed in the bottom of the dust removal cylinder (1).

3. The indoor dust filtering apparatus for safety engineering according to claim 2, wherein The filter assembly comprises a folding pipe (4); one end of the folding pipe (4) is fixedly connected with the end of the air outlet pipe (3) away from the dust removal cylinder (1); the other end of the folding pipe (4) is fixedly connected with a filter element (22); and the outer side wall of the filter element (22) is fixedly connected with one side of the first supporting plate (8).

4. The indoor dust filtering apparatus for safety engineering according to claim 3, wherein The air injection assembly comprises a first supporting column (7), a guide column (32) and a piston cylinder (31). The bottom of the first supporting column (7) is fixedly connected with the first supporting plate (8), and the top of the first supporting column (7) is fixedly connected with the pressure storage tank (6). One end of the pressure storage tank (6) is fixedly connected with the air injection part (5), and the other end of the pressure storage tank (6) is provided with an air inlet hole. The communication part between the pressure storage tank (6) and the air injection part (5) is fixedly connected with an electromagnetic valve, and the electromagnetic valve is electrically connected with the controller. The inner side wall of the pressure storage tank (6) is fixedly connected with an air pressure sensor. The air pressure sensor is used for detecting the air pressure signal in the pressure storage tank (6) and transmitting the air pressure signal to the controller. The side, away from the output shaft of the first rotating rod (15), of the double-head driving part (13) is fixedly connected with the fourth rotating rod (19), the other end of the fourth rotating rod (19) is rotatably connected with the third rotating rod (18), the other end of the third rotating rod (18) is rotatably connected with the piston rod (17), the piston rod (17) penetrates through the guide column (32) and the bottom wall of the piston cylinder (31) and is slidably connected with the guide column (32) and the bottom wall of the piston cylinder (31), and the end, away from the third rotating rod (18), of the piston rod (17) is fixedly connected with the piston plate, and the piston plate is slidably connected with the inner side wall of the piston cylinder (31). The outer side wall of the piston cylinder (31) is fixedly connected with the fourth supporting column (35), and the bottom of the fourth supporting column (35) is fixedly connected with the top of the double-head driving part (13). The top wall of the piston cylinder (31) is provided with an air inlet and an air outlet, the air inlet is fixedly connected with a check valve, and the air outlet is fixedly connected with the air inlet hole.

5. The indoor dust filtering apparatus for safety engineering according to claim 4, wherein The flow guide assembly comprises a second supporting plate (33), a cross baffle (36), a first transmission rod (23) and a second transmission rod (24). The cross baffle (36) is located at the dust outlet, one side of the second supporting plate (33) is fixedly connected with the outer side wall of the dust removal cylinder (1), the first transmission rod (23) penetrates through the second supporting plate (33) and is rotatably connected with the second supporting plate (33), the output shaft of the first rotating rod (15) is coaxially fixedly connected with a first main bevel gear, the one end of the first transmission rod (23) is fixedly connected with a first slave bevel gear, and the first main bevel gear is engaged with the first slave bevel gear. The other end of the first transmission rod (23) is fixedly connected with a second main bevel gear, the one end of the second transmission rod (24) is fixedly connected with a second slave bevel gear, the other end of the second transmission rod (24) penetrates through the bottom side wall of the dust removal cylinder (1) and is coaxially fixedly connected with the cross shaft of the cross baffle (36), and the second main bevel gear is engaged with the second slave bevel gear.

6. The indoor dust filtering apparatus for safety engineering according to claim 5, wherein The collecting assembly comprises a dust collecting box (26), a fixing seat (25) is fixedly connected to the side wall of the dust collecting box (26), the top of the fixing seat (25) is fixedly connected with the air inlet pipe (2), the bottom of the fixing seat (25) is fixedly connected with a fixing shaft (27), the fixing shaft (27) is rotationally matched with an electric push rod (28), the electric push rod (28) is electrically connected with a controller, the output end of the electric push rod (28) is rotationally matched with an L-shaped transmission rod (29), the other end of the L-shaped transmission rod (29) is fixedly connected with a rotating shaft (30), the rotating shaft (30) penetrates through the side wall of the dust collecting box (26) and is rotationally matched with the same, the side wall of the rotating shaft (30) is fixedly connected with a dust blocking plate (34), the inner bottom wall of the dust collecting box (26) is fixedly connected with a pressure sensor, the pressure sensor is used for detecting a weight signal in the dust collecting box (26) and transmitting the weight signal to the controller.

7. The indoor dust filtering apparatus for safety engineering according to claim 6, wherein The inner side wall of the dust removal cylinder (1) is fixedly connected with spiral guide vanes.

8. The indoor dust filtering apparatus for safety engineering according to claim 7, wherein The surface of the filter element (22) is fixedly connected with a PTFE film.

9. The indoor dust filtering apparatus for safety engineering according to claim 8, wherein The bottom of the guide plate (12) is fixedly connected with a plurality of third support columns (14), and the third support columns (14) are all fixedly connected with the top of the dust removal cylinder (1).

10. The indoor dust filtering apparatus for safety engineering according to claim 9, wherein The bottom of the dust blocking plate (34) is fixedly connected with a plurality of sprayers, and the sprayers are electrically connected with the controller.

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