CN117138466B - Air filtering device - Google Patents

Abstract

The utility model provides an air filter, belongs to solid gas separation technical field, and it includes filter unit and air inlet unit, and filter unit is used for the filtration of air, and air inlet unit is used for the suction of air so that the air passes through filter unit, and filter unit is mainly in order to filter the fibre in the air that passes through and the dust of granularity great to the dust fall operation such as dust in the convenience carries out the air through the dust fall system. The air inlet unit can suck air, so that dust removal operation can be performed on the air when the air passes through the filtering unit. The filter cloth with the wavy structure is arranged, so that the filtering of fibers and the like in the air is enlarged, the air permeation quantity is ensured as much as possible, and the fibers and the like on the filter cloth are cleaned in a sticky tape sticking mode.

Description

Air filtering device

Technical Field

The invention relates to the technical field of solid gas separation, in particular to an air filtering device.

Background

Air purification in the computer lab can protect the precision instruments or the electronic equipment in the computer lab effectively. At present, when purification is carried out, dust fall is carried out in a spraying mode, and the mode has a remarkable effect on the tiny dust particles. But the air is not filtered, so that part of the fibers enter the dust fall system, and the fibers are easy to block. In order to prevent fibers and the like from entering the dust fall system, the fibers and the like can be blocked outside the filter cloth by the filter cloth in a filtering mode, so that the aim of primary air filtering is fulfilled. However, the filtering cloth adopted at present is in a planar form, namely, the filtering cloth is tightly fixed on the frame plate at present, and then the frame plate is arranged at the front end of the air inlet part, so that the filtering effect can be basically achieved, but in specific application, the problem that the throughput of air is reduced along with accumulation of fibers and the like on the filtering cloth, so that the dust settling effect is affected, and secondly, the cleaning of the fibers on the filtering cloth is inconvenient and the cleaning effect is poor is also existed. Of course by direct replacement, which, however, would undoubtedly increase the cost of air dust fall in the machine room.

Disclosure of Invention

The invention provides an air filtering device, which solves the defects of the prior art, ensures the air throughput by enlarging the area of the filter cloth, is convenient to clean the filter cloth and has strong practicability.

In order to achieve the object of the present invention, the following techniques are proposed:

the utility model provides an air filter device, includes filter unit and air inlet unit, and filter unit is used for the filtration of air, and air inlet unit is used for the suction of air so that the air passes through filter unit, and filter unit is mainly in order to filter the fibre in the air that passes through and the dust of granularity great micronic dust to the dust fall operation such as dust in the convenience carries out the air through the dust fall system. The air inlet unit can suck air, so that dust removal operation can be performed on the air when the air passes through the filtering unit.

The filter unit comprises a front frame, the front frame is of a rectangular structure, the upper end of the front frame is open, the rear side of the front frame is provided with a middle frame, the rear side of the middle frame is provided with a rectangular frame plate, the rear side of the rectangular frame plate is provided with a rear frame, the open end of the front frame is provided with an upper baffle through screws, the structural design of the front frame is convenient for cleaning the filter component inside the front frame and the filter component inside the front frame at the later stage, and the arrangement of the upper baffle can prevent air from directly entering from the open end. The rear side of the rear frame is provided with an air outlet cover which is of a conical structure, the rear end of the air outlet cover is a small end, and the rear end of the air outlet cover is provided with an air inlet pipe. The air outlet cover is mainly used for conveying air to the air inlet unit. A plurality of pairs of jacks are formed in the front wall of the front frame, and the jacks are arranged in an array at equal intervals.

A pair of installation risers are installed to the front side of center, buckle spacing inner panel on the installation riser, vertical hole has been seted up on the spacing inner panel, the upper end opening of vertical hole, the lower extreme of spacing inner panel is equipped with the diaphragm, transverse hole has been seted up on the diaphragm, the guiding hole is installed to the upper end of installation riser, be equipped with filter cloth between the spacing inner panel, filter cloth is wavy structure, filter cloth is equipped with interior peg along its length direction with equidistant array, be equipped with the cladding pole between every two adjacent interior pegs, the both ends of interior peg are worn in vertical hole, the both ends of every interior peg are equipped with the V-arrangement shell fragment respectively, the both ends of V-arrangement shell fragment are located on the cladding pole respectively, the both ends of cladding pole that are located the bottom wear in transverse hole. The filter cloth having a wavy structure increases the filtering area compared with a flat plate-shaped filter cloth, and the filter cloth has a plurality of inclined surfaces, so that the fibers and the like are not easy to stay on the inclined surfaces during filtering, thereby ensuring the air throughput. The filter cloth can be tensioned in a wave shape by the arrangement of the inner hanging rod and the outer hanging rod. And for convenience, the filter cloth is spread in a long strip shape and the fiber and the like adhered on the outer wall thereof are cleaned, so that vertical holes are provided and the upper end thereof is provided as an opening. The V-shaped elastic sheet can enable the filter cloth to be of a wave-shaped structure all the time. And the filter cloth can be restored to a wavy structure after cleaning.

The both ends of interior peg are equipped with the end cap respectively, be equipped with a pair of flange on the end cap, the spiro union has the lead screw on the spiro union is installed to the upper end of spacing inner panel, the upper end of lead screw is equipped with the rotation cap, the lower extreme of lead screw rotates and is equipped with the movable seat, the inboard end of movable seat wears in the guiding hole, be equipped with the action wheel on the movable seat, the periphery of action wheel is tangent to have the wedge, the upper end of wedge is the tip, the lower extreme of wedge is equipped with the push pedal, a plurality of springs are installed to the rear side of push pedal, the spring is all located on the installation riser, be equipped with a plurality of spacing picture peg on the push pedal, install interior guide sleeve on the lateral wall of spacing inner panel, spacing picture peg wears to locate on the interior guide sleeve, spacing picture peg wears between every pair of flange. The convex plate and the limiting plugboard inserted in the convex plate can position each inner hanging rod, so that the inner hanging rods are prevented from deforming under the action of the restoring deformation force of the V-shaped elastic sheet, and the filter cloth is prevented from deforming. The arrangement of the springs can provide thrust for the limiting plugboard, so that the limiting plugboard can be always inserted between the convex plates. The function of the action wheel and the wedge block is that when an operator rotates the screw rod, the limiting inserting plate can be moved out from the convex plates, so that the positioning of the inner hanging rod is conveniently canceled.

The side wall of the front frame is rotationally provided with a rotating column, one end of the rotating column, which is far away from the side wall of the front frame, is provided with a cam, the periphery of the cam is tangent with a concave part, two ends of the concave part are respectively provided with a support plate, the other end of the support plate is provided with a rotating block, the rotating block is rotationally provided with a hanging ring, the hanging ring is provided with a hanging hook, the hanging hook is in a J-shaped structure, the hanging hook is provided with a connecting plate, the other end of the connecting plate is provided with an inner pressing plate, the inner wall of the inner pressing plate is provided with a plurality of clamping plates, the clamping plates penetrate through the jacks, the inner side end of the clamping plates is provided with V grooves in an opening mode, one end of each V-shaped elastic piece, which is close to an externally hung rod, penetrates through the V grooves, the rear side of the support plate is provided with a plurality of spring pins, each spring pin is sleeved with a sleeve seat, each sleeve seat is installed on the side wall of the front frame, and each spring pin is sleeved with an external spring, and each external spring is located between the support plate and the sleeve seat. The clamping plate provided by the invention limits the outer side end of the V-shaped elastic sheet through the V-shaped groove arranged on the clamping plate, and further ensures the posture of the V-shaped elastic sheet, thereby ensuring that the whole filter cloth is of a wavy structure. And the push spring is arranged to balance the pushing force of the cam and the restoring deformation force of the push spring when the cam acts on the concave part. The hanging ring and the hanging hook are arranged, so that the clamping plate is convenient to fix and detach. Therefore, when the filter cloth is cleaned, the stretching operation of the filter cloth is convenient.

The upper ends of two sides of the middle frame are respectively provided with a plurality of limiting pins, the middle frame is sleeved with a vertical concave frame, the vertical sections of the vertical concave frame are respectively provided with a plurality of guide vertical holes, the limiting pins penetrate through the guide vertical holes, the lower ends of the vertical sections of the vertical concave frame are respectively provided with limiting convex rods, the horizontal sections of the vertical concave frame are provided with an upper plate through a plurality of tightening screws, a plurality of strip holes are formed in the upper plate, the tightening screws penetrate through the strip holes, the lower ends of the tightening screws are connected onto the horizontal sections of the vertical concave frame in a threaded manner, the upper plate is provided with a pair of hanging rods, the front ends of the hanging rods are provided with J-shaped hooks, the vertical concave frames arranged in a drawing manner can be pulled upwards when the filter cloth is cleaned, the upper plate stretches forwards, then the hanging rods positioned at the upper end are hung on the J-shaped hooks, and then fiber and other cleaning operations on the front wall of the filter cloth are performed. The J-shaped hook is arranged in a movable state, and the J-shaped hook is mainly used for facilitating the dismounting operation of the upper baffle.

A pair of pin is worn to install to one side of back frame, wear the activity and be equipped with movable inner panel, a pair of horizontal hole has been seted up on the movable inner panel, wear the pin and wear in the horizontal hole, be equipped with the fly leaf on the outer wall of movable inner panel, the horizontal hole distributes in the upper and lower both sides of fly leaf, the effect hole has been seted up to the rear end of fly leaf, wear the action pole in the effect hole, the both ends of action pole are equipped with the connection swivel plate respectively, the other end of connecting the swivel plate is equipped with rotates the end post, rotate on the end post and be equipped with the rotation seat, rotate the seat and install on the lateral wall of back frame, the one end of rotating the end post is equipped with the rotation handle, the fly leaf acts on the downside of spacing protruding pole for the spacing of vertical concave frame. When action bars act on the inner wall of action hole, can make the push plate outwards move to carry out spacingly to spacing protruding pole through the push plate, thereby support the filter cloth for vertical expansion state through vertical concave frame.

The vertical section of vertical concave frame is gone up and is installed first guide rail through many spliced poles, install the second guide rail on the outer wall of center, first guide rail internalization is equipped with first slider, the planking is installed to the outside end of first slider, the front end of planking is buckled and is had the preceding arm of stretching, the second slider is installed to the inboard end inner wall of preceding arm of stretching, the second slider activity is located in the second guide rail, transversely perforated has been seted up on the preceding arm of stretching, the upper and lower both sides of preceding arm of stretching are equipped with the curb plate respectively, waist type hole has been seted up on the curb plate, be equipped with the fly leaf between the curb plate, the upper and lower both sides of fly leaf are equipped with the guide pin respectively, the guide pin wears in waist type downthehole, the setting of guide pin has further improved the stability of root when the fly leaf moves. The movable plate is penetrated with a transverse spring pin, the root of the transverse spring pin is arranged at one end of the front extending arm, which is close to the outer plate, one end of the transverse spring pin, which is far away from the outer plate, is sleeved with an internal pressure spring, one end of the internal pressure spring, which is close to the outer plate, acts on the movable plate, the movable plate is rotatably provided with a rotating shaft, the rotating shaft penetrates through the transverse perforation, a roller is fixed on the rotating shaft, the roller and the second sliding block are positioned at the same side, and the periphery of the roller is provided with an adhesive tape. The two ends of the rotating shaft are respectively provided with an inner end disc, one inner end disc is arranged at the root of the rotating shaft, the inner end disc and the second sliding block are positioned at the same side, the other inner end disc is arranged at the end part of the rotating shaft, the two ends of the rotating shaft are respectively sleeved with an inner pressure disc, the inner pressure disc is positioned between the roller and the inner end disc, a pushing spring is arranged between the inner end disc and the inner pressure disc positioned at the same end, the pushing spring is sleeved on the rotating shaft, a plurality of positioning rods are arranged on the inner pressure disc, and the positioning rods penetrate through the two ends of the roller. Through the gyro wheel that sets up and the sticky tape of fixing on the gyro wheel to the sticky surface of sticky tape is outwards directed, can paste fibre micronic dust etc. that adheres to on the filter cloth on the sticky surface of sticky tape when the gyro wheel rolls. Thereby achieving the purpose of cleaning the air inlet surface of the filter cloth. When the cleaning and pasting operation is performed, the roller can be always clung to the air inlet side of the filter cloth by the aid of the internal pressure spring, and therefore the cleaning effect is ensured. The first guide rail and the second guide rail are arranged to guide the movement of the roller, and the length of the guide rail can be shortened through the dislocation arrangement of the first guide rail and the second guide rail. In order to fix the adhesive tape, a positioning rod is arranged and penetrates through the two ends of the roller under the action of the pushing spring.

A plurality of fans are installed on the rear side of the rectangular frame plate, the fans are located in the rear frame, and through the arrangement of the fans, the air inflow of air can be increased, and the flow of air is accelerated.

The air inlet unit comprises a mounting seat, wherein mounting rings are arranged on two sides of the mounting seat, an outer cover is arranged on the inner wall of the mounting ring, an inner ring is arranged between the outer covers, end rings are arranged at two ends of the inner ring, annular grooves are formed in the end portions of the end rings, a pair of communicating pipes are communicated with the lower side of the inner ring, the communicating pipes are symmetrically arranged on the inner ring, one communicating pipe is arranged on an air inlet pipe, a rotating shaft is eccentrically arranged on the outer cover, one end of the rotating shaft is connected with a motor, the motor is arranged on the outer cover, a rotating disc is coaxially arranged on the rotating shaft, a pair of notches are symmetrically formed in the rotating disc, the length directions of the notches are located on the same straight line, movable rotating plates are movably arranged in the notches, arc plates are respectively arranged on two sides of the movable rotating plates in a rotating mode, constraint annular grooves are coaxially formed in the inner wall of the outer cover, sealing rings are arranged in the constraint annular grooves, and sealing rings are arranged on the inner wall of the outer cover and are inlaid in the annular grooves. The constraint ring groove plays a role in guiding movement of the arc plate, so that the movable rotating plate regularly moves eccentrically in the inner ring, and then the air pump is driven into the dust fall system in the rotating process. The notch plays a role in limiting and guiding the movable rotating plate, so that the movable rotating plate extends regularly.

The technical scheme has the advantages that:

the filter cloth with the wavy structure is arranged, so that the filtering of fibers and the like in the air is enlarged, the air permeation quantity is ensured as much as possible, and the fibers and the like on the filter cloth are cleaned in a sticky tape sticking mode.

Drawings

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 shows a perspective view of an air filter device.

Fig. 2 shows a perspective view of the filter unit.

Fig. 3 shows an assembly structure diagram of the front frame, the middle frame, the rectangular frame plate, and the rear frame.

Fig. 4 shows a perspective structural view of the front frame.

Fig. 5 shows a perspective view of the filter cloth and the middle frame.

Fig. 6 shows a perspective view of the limiting members on both sides of the filter cloth.

Fig. 7 shows a perspective view of the filter cloth and related components.

Fig. 8 shows a component block diagram for end stop of the inner rail.

FIG. 9 shows a block diagram of components used for cladding end stop.

FIG. 10 shows a partial detail view of a component for cladding end stop.

Fig. 11 shows a structural view of the outside cleaning member of the filter cloth.

Fig. 12 shows a structural view of the vertical recessed frame.

Fig. 13 shows a perspective structural view of an upper portion of the vertical recessed frame.

Fig. 14 shows a component structure diagram for vertical recessed frame limitation.

Fig. 15 shows a first perspective view of the cleaning head on the cleaning member outside the filter cloth.

FIG. 16 shows a second perspective view of the cleaning head on the cleaning element outside the filter cloth.

Fig. 17 shows a schematic installation of a rectangular frame plate and a fan.

Fig. 18 shows a schematic installation of the air intake unit.

Fig. 19 shows a perspective view of the inner ring.

Fig. 20 shows a perspective view of the outer cover.

Fig. 21 shows a structural view of the inside of the air intake unit.

Reference numerals illustrate:

the filter unit 1, the front frame 100, the middle frame 101, the rectangular frame plate 102, the rear frame 103, the upper baffle 104, the screw 105, the insertion hole 106, the air outlet cover 107, the air inlet pipe 108, the installation riser 109, the guide hole 110, the movable seat 111, the limit inner plate 112, the vertical hole 113, the horizontal plate 114, the horizontal hole 115, the filter cloth 116, the pylon 117, the inner rail 118, the end cap 119, the boss 120, the V-shaped spring 121, the screw seat 122, the screw rod 123, the rotating cap 124, the action wheel 125, the wedge block 126, the inner guide sleeve plate 127, the limit insert plate 128, the spring 129, the rotating post 130, the cam 131, the concave 132, the support plate 133, the rotating block 134, the hanging ring 135, the spring pin 136, the sleeve seat 137, the push spring 138, the hooks 139, the connecting plate 140, the inner pressure plate 141, the clip 142, the V-groove 143, the fan 144, the limit pin 145, the vertical concave frame 146, the guide riser 147, the limit boss 148, the tightening screw 149, the upper plate 150, the air intake unit comprises a concave holding rod 151, a long hole 152, a hanging rod 153, a J-shaped hook 154, a penetrating pin 155, a movable inner plate 156, a horizontal hole 157, a pushing plate 158, an action hole 159, an action rod 160, a connecting rotating plate 161, a rotating end post 162, a rotating seat 163, a rotating handle 164, a connecting post 165, a first guide rail 166, a second guide rail 167, a first sliding block 168, a second sliding block 169, an outer plate 170, a front extending arm 171, a side plate 172, a waist-shaped hole 173, a guide pin 174, a movable plate 175, a transverse spring pin 176, an inner pressure spring 177, a rotating shaft 178, an inner end plate 179, a roller 180, an inner pressure plate 181, a pushing spring 182, a positioning rod 183, an air intake unit 2, a mounting seat 200, a mounting ring 201, an outer cover 202, an inner ring 203, an end ring 204, a ring groove 205, a communicating tube 206, a motor 207, a rotating shaft 208, a rotating plate 209, a notch 210, a movable rotating plate 211, an arc plate 212, a constraint ring groove 213, and a sealing ring 214.

Description of the embodiments

Referring to fig. 1, an air filtering apparatus includes a filtering unit 1 for filtering air, and an air inlet unit 2 for sucking air such that the air passes through the filtering unit 1.

In this embodiment, when the air is pre-filtered, the air is sucked into the filter unit 1 through the air inlet unit 2, and then the fiber and the dust with larger particles in the air are filtered through the filter unit 1, and when the air is filtered for a period of time, the cleaning operation can be performed.

Referring to fig. 2 to 4, the filter unit 1 includes a front frame 100, the front frame 100 has a rectangular structure, and an upper end thereof is opened, a middle frame 101 is installed at a rear side of the front frame 100, a rectangular frame plate 102 is installed at a rear side of the middle frame 101, a rear frame 103 is installed at a rear side of the rectangular frame plate 102, an upper baffle 104 is installed at an opening end of the front frame 100 through a screw 105, an air outlet cover 107 is installed at a rear side of the rear frame 103, the air outlet cover 107 has a tapered structure, a rear end of the air outlet cover 107 is a small end, an air inlet pipe 108 is installed at a rear end of the air outlet cover 107, a plurality of pairs of insertion holes 106 are opened on a front wall of the front frame 100, and the insertion holes 106 are arranged in an array at equal intervals. Referring to fig. 17, a plurality of fans 144 are mounted to the rear side of the rectangular frame plate 102, and the fans 144 are located in the rear frame 103.

When air is introduced, the air is first moved into the air outlet cover 107 through the front frame 100, the middle frame 101, and the rear frame 103 by the provided fan 144, and finally pumped into the dust fall system from the air inlet pipe 108 by the air inlet unit 2.

While cleaning the filter element, the screw 105 is loosened and the upper baffle 104 is removed, after which the cleaning operation is performed.

Referring to fig. 5, 6 and 7, a pair of installation risers 109 are installed on the front side of the middle frame 101, a limiting inner plate 112 is bent on the installation risers 109, a vertical hole 113 is formed in the limiting inner plate 112, the upper end of the vertical hole 113 is opened, a transverse plate 114 is arranged at the lower end of the limiting inner plate 112, a transverse hole 115 is formed in the transverse plate 114, a guide hole 110 is installed at the upper end of the installation risers 109, a filter cloth 116 is arranged between the limiting inner plates 112, the filter cloth 116 is in a wavy structure, inner hanging rods 118 are arranged in an array at equal intervals along the length direction of the filter cloth 116, an outer hanging rod 117 is arranged between every two adjacent inner hanging rods 118, two ends of each inner hanging rod 118 penetrate into the vertical hole 113, two ends of each inner hanging rod 118 are respectively provided with a V-shaped elastic sheet 121, two ends of each V-shaped elastic sheet 121 are respectively arranged on the outer hanging rods 117, and two ends of each outer hanging rod 117 positioned at the bottom end penetrate into the transverse hole 115.

As air passes through the filter cloth 116 by the fan 144, the fibers and larger sized particles in the air will be blocked by the filter cloth from the outside of the filter cloth 116. Meanwhile, the filter cloth 116 is of a wavy structural design, so that the filtering effect is improved, and when the filter cloth is filtered, fibers, particles and the like are accumulated at the folded positions of the filter cloth 116, so that the influence on the air throughput caused by the existence of the fibers and the like is avoided.

Referring to fig. 7 and 8, the two ends of the inner hanging rod 118 are respectively provided with an end cap 119, a pair of convex plates 120 are arranged on the end caps 119, a screw base 122 is arranged at the upper end of the limiting inner plate 112, a screw rod 123 is connected to the screw base 122 in a screw manner, a rotating cap 124 is arranged at the upper end of the screw rod 123, a movable base 111 is arranged at the lower end of the screw rod 123 in a rotating manner, the inner side end of the movable base 111 penetrates through the guide hole 110, an action wheel 125 is arranged on the movable base 111, wedge blocks 126 are tangential to the outer periphery of the action wheel 125, the upper ends of the wedge blocks 126 are small ends, a push plate is arranged at the lower end of the wedge blocks 126, a plurality of springs 129 are arranged at the rear side of the push plate, the springs 129 are arranged on the mounting vertical plates 109, a plurality of limiting insert plates 128 are arranged on the push plate, an inner guide sleeve plate 127 is arranged on the outer side wall of the limiting inner plate 112, the limiting insert plate 128 penetrates through the inner guide sleeve plate 127, and the limiting insert plate 128 penetrates between each pair of convex plates 120.

When the position of the inner hanging rod 118 is positioned, an operator can rotate the screw rod 123, so that the acting wheel 125 moves upwards, and along with the upward movement of the acting wheel 125, the limiting insert plate 128 moves towards the inner guide sleeve plate 127 side under the action of the elastic force of the spring 129, that is, along with the upward movement of the acting wheel 125, the length of the limiting insert plate 128 extending out of the inner guide sleeve plate 127 is extended, the distance between the push plate and the inner guide sleeve plate 127 is shortened, and finally the limiting insert plate 128 is inserted between the convex plates 120, so that the positioning operation of the inner hanging rod 118 is achieved, and the operation is generally performed after the cleaning of the filter cloth 116 is completed.

When cleaning the filter cloth 116, the operator needs to rotate the screw rod 123, and then the wedge block 126 moves under the thrust of the action wheel 125, that is, the distance between the push plate and the inner guide sleeve plate 127 is enlarged at this time, and the spring 129 is compressed. That is, when the wedge block 126 moves, the limiting insert plate 128 is moved out from between the convex plates 120, so that the limiting of the inner hanging rod 118 is removed, and then the operator pulls the filter cloth 116 upwards to extend the filter cloth 116, and the V-shaped elastic sheet 121 is straightened. Cleaning of the air inlet side of the filter cloth 116 may then be performed. While when the filter cloth 116 is pulled upwards, the portion of the inner rail 118 at the upper end will be removed from the vertical hole 113, while the lower portion will be located in the vertical hole 113, and when the filter cloth 116 is stretched, the outer rail 117 will also approach the inner rail 118.

Referring to fig. 9 and 10, a rotating post 130 is rotatably disposed on a side wall of the front frame 100, a cam 131 is disposed at one end of the rotating post 130 away from the side wall of the front frame 100, a concave member 132 is tangentially disposed at an outer periphery of the cam 131, support plates 133 are disposed at two ends of the concave member 132, a rotating block 134 is disposed at the other end of the support plate 133, a hanging ring 135 is rotatably disposed on the rotating block 134, a hook 139 is hung on the hanging ring 135, the hook 139 is in a J-shaped structure, a connecting plate 140 is disposed on the hook 139, an inner pressing plate 141 is disposed at the other end of the connecting plate 140, a plurality of clamping plates 142 are disposed on an inner wall of the inner pressing plate 141, the clamping plates 142 are disposed in the insertion holes 106, V grooves 143 are formed at inner ends of the clamping plates 142 in an opening manner, front ends of the V-shaped elastic plates 121 are disposed in the V grooves 143, that is, one ends of the V-shaped elastic plates 121 close to the outer hanging rods 117 are disposed in the V grooves 143, a plurality of spring pins 136 are disposed at the rear sides of the support plates 133, a sleeve seat 137 is disposed on the spring pins 136, the sleeve seat 137 is mounted on the side wall of the front frame 100, the spring pins 136 is sleeved with a spring 138, and the spring 138 is disposed between the support plates 137 and the sleeve seat 137.

In order to avoid deformation of the filter cloth 116 caused by the increase of the air inlet amount, when the front end postures of the V-shaped elastic pieces 121 are fixed, an operator firstly passes the clamping plate 142 into the insertion hole 106, then passes one end of each two adjacent V-shaped elastic pieces 121 into the same V-shaped groove 143, restrains the front ends of the V-shaped elastic pieces 121 through the V-shaped grooves 143, then hangs the hanging ring 135 on the hanging hook 139, then rotates the cam 131, when the cam 131 rotates, the concave piece 132 and the hanging hook 139 move backwards, meanwhile the push spring 138 is compressed, and the backward movement of the hanging hook 139 can pull the clamping plate 142 to synchronously move backwards, so that the limiting stability is ensured, and the operation is performed until the restoring deformation force of the push spring 138 and the pushing force of the cam 131 are balanced.

Referring to fig. 11, 12 and 13, a plurality of limiting pins 145 are respectively mounted at the upper ends of two sides of the middle frame 101, a vertical concave frame 146 is sleeved on the middle frame 101, a plurality of guide vertical holes 147 are respectively formed in the vertical sections of the vertical concave frame 146, the limiting pins 145 penetrate through the guide vertical holes 147, limiting convex rods 148 are respectively arranged at the lower ends of the vertical sections of the vertical concave frame 146, an upper plate 150 is mounted on the horizontal section of the vertical concave frame 146 through a plurality of tightening screws 149, a plurality of strip holes 152 are formed in the upper plate 150, the tightening screws 149 penetrate through the strip holes 152, the lower ends of the tightening screws 149 are in threaded connection with the horizontal sections of the vertical concave frame 146, a pair of hanging rods 153 are arranged on the upper plate 150, J-shaped hooks 154 are arranged at the front ends of the hanging rods 153, and concave holding rods 151 are mounted on the upper plate 150.

Referring to fig. 14, a pair of penetrating pins 155 are installed on one side of the rear frame 103, a movable inner plate 156 is movably arranged on the penetrating pins 155, a pair of horizontal holes 157 are formed in the movable inner plate 156, the penetrating pins 155 penetrate through the horizontal holes 157, pushing plates 158 are arranged on the outer wall of the movable inner plate 156, the horizontal holes 157 are distributed on the upper side and the lower side of the pushing plates 158, action holes 159 are formed in the rear ends of the pushing plates 158, action rods 160 penetrate through the action holes 159, two ends of the action rods 160 are respectively provided with a connecting rotating plate 161, the other ends of the connecting rotating plates 161 are provided with rotating end posts 162, rotating seats 163 are rotatably arranged on the rotating end posts 162, the rotating seats 163 are installed on the side wall of the rear frame 103, one ends of the rotating end posts 162 are provided with rotating handles 164, and the pushing plates 158 act on the lower sides of the limiting convex rods 148 and are used for limiting the vertical concave frames 146.

When cleaning the air inlet side of the filter cloth 116, the vertical concave frame 146 is pulled upwards, when the vertical concave frame 146 is pulled upwards, in order to avoid interference caused by the extension of the pushing plate 158 to the upward movement of the vertical concave frame 146, so that the upward movement of the vertical concave frame 146 is blocked, therefore, when the vertical concave frame 146 is pulled upwards, the pushing plate 158 needs to be moved away from the limiting convex rod 148 by rotating the handle 164, so that the pushing plate 158 moves out of the movable range of the limiting convex rod 148. Thereby ensuring proper operation of the vertical recessed frame 146. The vertical concave frame 146 pulls upwards until the limit protruding rod 148 is located above the pushing plate 158, then an operator loosens the screw 149 and moves the J-shaped hook 154 forwards, after the J-shaped hook 154 moves to a proper position, the screw 149 is screwed for locking the position, then the operator rotates the rotating end post 162 through the rotating handle 164, the rotating end post 162 rotates the acting rod 160 around the axial direction of the rotating end post 162, the acting rod 160 acts on the acting hole 159, the limit protruding rod 148 is limited through the pushing plate 158, after limiting, the operator removes the upper baffle plate 104, then pulls the filter cloth 116 upwards, the filter cloth 116 is in an extending state, and meanwhile the V-shaped elastic sheet 121 is also in a straightening state. And the hanging rod 117 at the upper end is hung on the J-shaped hook 154, and the filter cloth 116 is in an extending state at the moment, so that the air inlet side of the filter cloth is convenient to clean.

Referring to fig. 15 and 16, a first guide rail 166 is installed on a vertical section of a vertical concave frame 146 through a plurality of connecting columns 165, a second guide rail 167 is installed on an outer wall of a middle frame 101, a first slide block 168 is movably arranged in the first guide rail 166, an outer plate 170 is installed at an outer side end of the first slide block 168, a front extension arm 171 is bent at a front end of the outer plate 170, a second slide block 169 is installed on an inner wall of an inner side end of the front extension arm 171, the second slide block 169 is movably arranged in the second guide rail 167, transverse perforations are formed in the front extension arm 171, side plates 172 are respectively arranged on an upper side and a lower side of the front extension arm 171, waist-shaped holes 173 are formed in the side plates 172, a movable plate 175 is arranged between the side plates 172, guide pins 174 are respectively arranged on an upper side and a lower side of the movable plate 175, the guide pins 174 penetrate into the waist-shaped holes 173, transverse spring pins 176 are penetrated on the movable plate 175, roots of the transverse spring pins 176 are installed on one end of the front extension arm 171 close to the outer plate 170, an inner pressure spring 177 is sleeved at one end of the transverse spring pin 176 far away from the outer plate 170, one end of the inner pressure spring 177 close to the outer plate 170 acts on the movable plate 175, a rotating shaft 178 is rotatably arranged on the movable plate 175, the rotating shaft 178 penetrates through the transverse perforation, a roller 180 is fixed on the rotating shaft 178, the roller 180 and the second sliding block 169 are positioned at the same side, inner end discs 179 are respectively arranged at two ends of the rotating shaft 178, one inner end disc 179 is arranged at the root of the rotating shaft 178, the inner end discs 179 and the second sliding block 169 are positioned at the same side, the other inner end disc 179 is arranged at the end of the rotating shaft 178, inner pressure discs 181 are respectively sleeved at two ends of the rotating shaft 178, an pushing spring 182 is arranged between the roller 180 and the inner end disc 179, the pushing spring 182 is sleeved on the rotating shaft 178, a plurality of positioning rods 183 are arranged on the inner pressure discs 181, the positioning rod 183 penetrates both ends of the roller 180.

When cleaning the air inlet side of the filter cloth 116, the present embodiment uses a single-sided adhesive tape as an example, the operator winds the adhesive tape around the roller 180, the adhesive surface of the adhesive tape faces outwards during winding, the non-adhesive side of the adhesive tape is tightly attached to the peripheral side of the roller 180, and both ends of the adhesive tape need to be exposed, that is, the width of the adhesive tape is larger than the length of the roller 180, and both ends of the adhesive tape extend out of the end face of the roller 180 after winding. When the adhesive tape is wound for one or more turns, the adhesive tape is sleeved on the roller 180, then an operator pulls one of the inner pressure plates 181 outwards, the positioning rod 183 positioned on the inner pressure plate 181 moves out from the end of the roller 180, the pushing spring 182 positioned at the end of the inner pressure plate 181 is also in a compressed state, then one end of the adhesive tape is folded inwards, a part of the adhesive tape with the end extending out of the roller 180 is folded between the positioning rod 183 and the end surface of the roller 180, then the pulling force on the inner pressure plate 181 is loosened, the inner pressure plate 181 moves towards the end surface of the roller 180 under the action of the pushing spring 182, and when the inner pressure plate 181 moves, the positioning rod 183 is inserted on the end surface of the roller 180 again, so that the positioning operation on one end of the adhesive tape is completed through the positioning rod 183, and the positioning mode of the other end of the adhesive tape is consistent with the above operation mode, and is not repeated. When the fixing of the adhesive tape is completed, the operator pulls the roller 180 toward the air inlet side of the filter cloth 116, and when pulling, the movable plate 175 also moves toward the air inlet side of the filter cloth 116, and simultaneously, due to the movement of the movable plate 175, the internal pressure spring 177 is compressed, and then the operator moves the roller 180 upward or downward, so that the adhesive tape on the roller 180 is tightly attached to the air inlet side of the filter cloth 116, and then the pulling force on the roller 180 is cancelled, and at this time, the adhesive tape wound on the roller 180 is tightly attached to the air inlet side of the filter cloth 116 under the action of the elastic force of the internal pressure spring 177, and then the operator pulls the roller 180 upward or downward, and when the roller 180 moves upward or downward along the length direction of the first guide rail 166 and the second guide rail 167, the adhesive tape wound on the roller 180 can adhere the fibers and the like on the filter cloth 116 to the adhesive surface of the adhesive tape, and when the adhesive tape is lowered, the adhesive tape is detached, and is replaced again and adhered until completion.

Referring to fig. 18 to 21, the air intake unit 2 includes a mounting seat 200, mounting rings 201 are provided on two sides of the mounting seat 200, an outer cover 202 is mounted on an inner wall of the mounting ring 201, an inner ring 203 is mounted between the outer covers 202, end rings 204 are provided on two ends of the inner ring 203, ring grooves 205 are provided on two ends of the end rings 204, a pair of communicating pipes 206 are connected to a lower side of the inner ring 203, the communicating pipes 206 are symmetrically arranged on the inner ring 203, one communicating pipe 206 is mounted on the air intake pipe 108, a rotating shaft 208 is eccentrically provided on the outer cover 202, one end of the rotating shaft 208 is connected with a motor 207, the motor 207 is mounted on the outer cover 202, a rotating disc 209 is coaxially provided on the rotating shaft 208, a pair of notches 210 are symmetrically provided on the rotating disc 209, a length direction of the notches 210 is on the same straight line, movable rotating plates 211 are movably provided in the notches 210, arc plates 212 are rotatably provided on two sides of the movable rotating plates 211, a constraint ring groove 213 is coaxially provided on an inner wall of the outer cover 202, the arc plates 212 are coaxially provided with the constraint ring grooves 213, the inner walls of the arc plates 212 are located in the constraint ring grooves 213, one end of the inner wall of the outer cover 202 is provided with sealing rings 214, and the sealing rings 214 are embedded in the ring grooves 205.

When air is pumped into the dust fall system through the air inlet unit 2, the motor 207 is started, the rotating disc 209 is driven by the motor 207 to rotate, the rotating disc 209 rotates the movable rotating plate 211 around the axial direction of the outer cover 202, and the rotating disc 209 rotates eccentrically around the outer cover 202, so that a space is always reserved between the rotating disc 209 and the inner ring 203, the space is a space for containing air, and the space also moves along with the rotation of the rotating disc 209, so that air can be pumped into the dust fall system through the rotation of the rotating disc 209.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (6)

1. An air filtering device is characterized by comprising a filtering unit (1) and an air inlet unit (2), wherein the filtering unit (1) is used for filtering air, and the air inlet unit (2) is used for sucking air so as to enable the air to pass through the filtering unit (1);

the filtering unit (1) comprises a front frame (100), wherein the front frame (100) is of a rectangular structure, the upper end of the front frame is open, a middle frame (101) is installed at the rear side of the front frame (100), a rectangular frame plate (102) is installed at the rear side of the middle frame (101), a rear frame (103) is installed at the rear side of the rectangular frame plate (102), an upper baffle plate (104) is installed at the open end of the front frame (100) through a screw (105), an air outlet cover (107) is installed at the rear side of the rear frame (103), the air outlet cover (107) is of a conical structure, the rear end of the air outlet cover (107) is a small end, and an air inlet pipe (108) is installed at the rear end of the air outlet cover (107);

a plurality of pairs of jacks (106) are formed in the front wall of the front frame (100), and the jacks (106) are arranged in an equidistant array;

a pair of mounting risers (109) are arranged at the front side of the middle frame (101), a limiting inner plate (112) is bent on the mounting risers (109), vertical holes (113) are formed in the limiting inner plate (112), the upper ends of the vertical holes (113) are opened, transverse holes (115) are formed in the lower ends of the limiting inner plates (112), guide holes (110) are arranged at the upper ends of the mounting risers (109), filter cloth (116) are arranged between the limiting inner plates (112), the filter cloth (116) is in a wavy structure, inner hanging rods (118) are arranged on the filter cloth (116) at equal intervals along the length direction of the filter cloth, a hanging rod (117) is arranged between every two adjacent inner hanging rods (118), two ends of each inner hanging rod (118) penetrate into the vertical holes (113), V-shaped elastic pieces (121) are respectively arranged at two ends of each inner hanging rod (118), two ends of each V-shaped elastic piece (121) are respectively arranged on the hanging rods (117), and two ends of each hanging rod (117) positioned at the bottom end penetrate into the transverse holes (115);

a plurality of fans (144) are arranged on the rear side of the rectangular frame plate (102), and the fans (144) are positioned in the rear frame (103);

the two ends of the inner hanging rod (118) are respectively provided with an end cap (119), a pair of convex plates (120) are arranged on the end caps (119), a screw seat (122) is arranged at the upper end of the limit inner plate (112), a screw rod (123) is connected to the screw seat (122) in a screw mode, a rotating cap (124) is arranged at the upper end of the screw rod (123), a movable seat (111) is arranged at the lower end of the screw rod (123) in a rotating mode, the inner side end of the movable seat (111) penetrates through a guide hole (110), an action wheel (125) is arranged on the movable seat (111), wedge blocks (126) are tangentially arranged on the periphery of the action wheel (125), the upper ends of the wedge blocks (126) are small ends, a push plate is arranged at the lower end of the wedge blocks (126), a plurality of springs (129) are arranged at the rear side of the push plate, the springs (129) are all arranged on the mounting vertical plates (109), a plurality of limit plug plates (128) are arranged on the push plate, an inner guide sleeve plate (127) is arranged on the outer side wall of the limit inner plate (112), the limit plug plates (128) penetrate through the inner guide plate (127), and the limit plug plates (128) penetrate between each pair of convex plates (120);

the front frame (100) is characterized in that a rotating column (130) is rotatably arranged on the side wall of the front frame (100), one end, far away from the side wall of the front frame (100), of the rotating column (130) is provided with a cam (131), the periphery of the cam (131) is tangent with a concave part (132), two ends of the concave part (132) are respectively provided with a support plate (133), the other end of the support plate (133) is provided with a rotating block (134), a hanging ring (135) is rotatably arranged on the rotating block (134), a hanging hook (139) is hung on the hanging ring (135), the hanging hook (139) is in a J-shaped structure, a connecting plate (140) is arranged on the hanging hook (139), an inner pressing plate (141) is arranged at the other end of the connecting plate (140), a plurality of clamping plates (142) penetrate into an inserting hole (106), a V-shaped elastic sheet (143) is formed at the inner side end of the clamping plates (142) in an opening mode, one end, close to an externally-hanging rod (117), of the support plate (133) is provided with a plurality of spring pins (136), a sleeve seat (137) is sleeved on the spring pin (136), the sleeve seat (137) is sleeved on the front frame (100), and the spring seat (138) is arranged between the sleeve seat (138) and the spring seat (138) is outwards pushed out;

a plurality of spacer pins (145) are installed respectively to the both sides upper end of center (101), the cover is equipped with vertical recessed frame (146) on center (101), a plurality of direction vertical holes (147) have been seted up respectively to the vertical section of vertical recessed frame (146), spacer pin (145) are worn in direction vertical hole (147), vertical section lower extreme of vertical recessed frame (146) is equipped with spacing protruding pole (148) respectively, install upper plate (150) through a plurality of screw (149) on the horizontal section of vertical recessed frame (146), a plurality of rectangular holes (152) have been seted up on upper plate (150), screw (149) wear in rectangular hole (152), and screw the lower extreme spiro union of screw (149) is equipped with a pair of peg (153) on upper plate (150) on the horizontal section of vertical recessed frame (146), the front end of peg (153) is equipped with J-shaped couple (154).

2. The air filtering device according to claim 1, wherein a pair of penetrating pins (155) are installed on one side of the rear frame (103), a movable inner plate (156) is movably arranged on the penetrating pins (155), a pair of horizontal holes (157) are formed in the movable inner plate (156), the penetrating pins (155) penetrate through the horizontal holes (157), pushing plates (158) are arranged on the outer wall of the movable inner plate (156), the horizontal holes (157) are distributed on the upper side and the lower side of the pushing plates (158), action holes (159) are formed in the rear ends of the pushing plates (158), action rods (160) penetrate through the action holes (159), two ends of the action rods (160) are respectively provided with a connecting rotating plate (161), a rotating end post (162) is arranged at the other end of the connecting rotating plate (161), a rotating seat (163) is rotatably arranged on the rotating end post (162), the rotating seat (163) is installed on the side wall of the rear frame (103), one end of the rotating end post (162) is provided with a rotating handle (164), the pushing plates (158) act on the lower side of the limiting protruding rods (148), and are used for limiting the vertical frames (146).

3. The air filtering device according to claim 1, wherein the vertical section of the vertical concave frame (146) is provided with a first guide rail (166) through a plurality of connecting columns (165), the outer wall of the middle frame (101) is provided with a second guide rail (167), the first guide rail (166) is internally provided with a first sliding block (168) in a movable manner, the outer side end of the first sliding block (168) is provided with an outer plate (170), the front end of the outer plate (170) is bent with a front extension arm (171), the inner side end of the front extension arm (171) is internally provided with a second sliding block (169), the second sliding block (169) is movably arranged in the second guide rail (167), the front extension arm (171) is provided with transverse perforations, the upper side and the lower side of the front extension arm (171) are respectively provided with side plates (172), a movable plate (175) is arranged between the side plates (172), the movable plate (175) is provided with transverse spring pins (176), the root parts of the transverse spring pins (176) are arranged on one end of the front extension arm (171) close to the outer plate (170), one end of the transverse spring pins (176) far away from the outer plate (170) is sleeved with an inner pressure spring (177), one end of the inner pressure spring (177) is arranged on the inner pressure spring (170), one end close to the movable plate (178) is provided with a rotating shaft (178), the movable plate (178) is arranged on the movable rotating shaft (178), the movable plate (178) is provided with a rotating shaft, and the movable plate (178) is provided with a rotating shaft, the roller (180) and the second sliding block (169) are positioned on the same side, and adhesive tapes are arranged on the periphery of the roller (180).

4. An air filtering device according to claim 3, wherein the side plate (172) is provided with a waist-shaped hole (173), the upper and lower sides of the movable plate (175) are respectively provided with a guide pin (174), and the guide pins (174) penetrate into the waist-shaped hole (173).

5. An air filtration device according to claim 3, characterized in that two ends of the rotating shaft (178) are respectively provided with an inner end disc (179), one inner end disc (179) is arranged at the root of the rotating shaft (178), the inner end disc (179) and the second sliding block (169) are positioned at the same side, the other inner end disc (179) is arranged at the end of the rotating shaft (178), two ends of the rotating shaft (178) are respectively sleeved with an inner pressure disc (181), the inner pressure disc (181) is arranged between the roller (180) and the inner end disc (179), a pushing spring (182) is arranged between the inner end disc (179) and the inner pressure disc (181) at the same end, the pushing spring (182) is sleeved on the rotating shaft (178), a plurality of positioning rods (183) are arranged on the inner pressure disc (181), and the positioning rods (183) penetrate through two ends of the roller (180).

6. The air filtering device according to claim 1, wherein the air inlet unit (2) comprises a mounting seat (200), mounting rings (201) are arranged on two sides of the mounting seat (200), an outer cover (202) is arranged on the inner wall of the mounting rings (201), an inner ring (203) is arranged between the outer covers (202), end rings (204) are arranged at two ends of the inner ring (203), annular grooves (205) are formed at the ends of the end rings (204), a pair of communicating pipes (206) are communicated with the lower side of the inner ring (203), the communicating pipes (206) are symmetrically arranged on the inner ring (203), one communicating pipe (206) is arranged on the air inlet pipe (108), a rotating shaft (208) is eccentrically arranged on the outer cover (202), one end of the rotating shaft (208) is connected with a motor (207), the motor (207) is arranged on the outer cover (202), rotating discs (209) are coaxially arranged on the rotating shafts (208), a pair of notches (210) are symmetrically formed on the rotating discs (209), the length directions of the notches (210) are positioned on the same straight line, movable rotating plates (211) are movably arranged in the notches (210), two sides of the movable plates (202) are respectively provided with a constraint annular grooves (212), and the inner walls (213) are coaxially arranged on the inner surfaces (213) of the two sides of the outer cover plates, the inner wall of the outer cover (202) is provided with a sealing ring (214), and the sealing ring (214) is embedded in the annular groove (205).