Connecting structure and environment-friendly dust removal bag thereof

By designing driving components and a pushing structure, the gas flow pressure drives the circular ribs to vibrate and clean the dust on the dust collection bag, solving the problems of low dust removal efficiency and poor reliability in existing technologies, and achieving a high-efficiency and environmentally friendly dust removal effect.

CN223668850UActive Publication Date: 2025-12-16LIAONING AOYUAN IND DEV GRP CO LTD
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Patent Information

Application Number
CN202423235664.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-12-16
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

Existing dust collector filter bags are inefficient at cleaning dust and cannot effectively remove dust adhering to the bag body, resulting in reduced dust collection efficiency and decreased reliability.

Method used

A connection structure was designed, in which the drive component moves the circular ribs up and down, and the gas flow pressure is used to achieve vibration cleaning of the bag. The collision between the circular ribs and the ring generates vibration force to remove dust. Combined with the limit rod and the push structure, it is ensured that the cleaning process does not require an additional power source, thus reducing energy consumption.

Benefits of technology

It improves the cleaning effect and reliability of dust collection bags, ensures efficient dust collection, reduces energy consumption, and enhances environmental friendliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a connecting structure and an environment-friendly dust removal bag thereof, and relates to the technical field of cloth bag dust removal, the connecting structure comprises a fixing plate, a plurality of mounting grooves are formed in the top of the fixing plate, and a first through hole is formed in the center of the inner bottom wall of each mounting groove. Comprising a bag body and a hollow pipe coaxially and fixedly connected to the bottom of a circular plate, the edge of the top end of the bag body is clamped by the bottom of the circular plate and the top of a fixing ring, a plurality of circular ribs are fixedly connected to the inner side wall of the bag body at equal intervals from top to bottom, and a plurality of circular rings are connected to the peripheral surface of the hollow pipe at equal intervals from top to bottom through first connecting rods; the number of the circular rings is equal to that of the circular ribs, and the circular rings and the circular ribs are distributed more. During use, the driving assembly drives the plurality of round ribs to move up and down so as to respectively impact the plurality of circular rings, at the moment, the round ribs are vibrated, vibration force is transmitted to the bag body, so that dust attached to the bag body is effectively vibrated down, the cleaning effect on the dust in the bag body is improved, and it is ensured that the dust removal work is efficiently and smoothly carried out; and the reliability of the dust removal bag is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to cloth bag dust removal technical field, especially in a kind of connecting structure and its environmental protection dust removal bag. BACKGROUND

[0002] Bag-type dust collector is a kind of dry filter dust device.It is suitable for trapping fine, dry, non-fibrous dust, filter bag is made of textile filter cloth or non-woven felt, and the filter effect of fiber fabric is used to filter dust-containing gas.When dust-containing gas enters bag-type dust collector, the dust with large particle size and specific gravity is settled down due to gravity and falls into ash bucket.The gas containing fine dust is filtered through filter material, and the dust is blocked, so that the gas is purified.

[0003] Since the dust removal bag is used as a filter layer, a large amount of dust will accumulate on the cloth bag during the operation of the dust collector. As the accumulated dust increases, the air permeability of the dust removal bag will decrease, which will further reduce the dust removal efficiency. Therefore, it is necessary to clean the dust attached to the dust removal bag to ensure the efficiency of the dust removal work. The existing filter bag dust collector will accumulate dust on the surface of the dust removal filter bag after use. In order to reuse the dust removal filter bag, a blowing pipe is arranged in the filter bag dust collector. After a large amount of dust accumulates on the surface of the dust removal filter bag, air is blown into the dust removal filter bag, thereby removing the dust. When the blowing pipe is used to clean the dust removal filter bag, the dust inlet needs to be closed, which will interrupt the dust removal process and reduce the dust removal efficiency.

[0004] The Chinese utility model patent with patent application number CN201811487837.8 records an environmental protection type dust removal filter bag. The inside of the filter bag is provided with a spring ring, so that when the filter bag works, the spring ring drives the bag body to expand or contract vertically, thereby driving the bag body of the dust removal filter bag to vibrate up and down. The dust on the surface of the dust removal filter bag falls off during the dust removal process, which does not interrupt the dust removal process. The bag cage is not needed, which improves the dust removal efficiency, simplifies the supporting device, saves the manufacturing cost and transportation cost of the equipment, improves the environmental protection of the device, and reduces the cleaning effect of the dust on the bag body, thereby reducing the reliability of the dust removal filter bag. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a connecting structure and an environmental protection dust removal bag to solve the problem that the existing dust removal filter bag cannot effectively remove the dust attached to the bag body during dust removal, which reduces the cleaning effect of the dust and further reduces the reliability of the dust removal filter bag.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a connecting structure, including the fixed plate, a plurality of installation grooves are arranged on the top of fixed plate, the first through -hole is arranged in the bottom wall center position in the installation groove, a plurality of thread holes are arranged on the bottom wall of installation groove in equal angle annularly, the fixed ring is placed on the bottom wall of installation groove coaxially, the first sealing ring is installed through the first annular groove in the bottom of fixed ring, the first sealing ring bottom is tightly in the bottom wall of installation groove, the round plate is inserted in the installation groove, the round hole is arranged on the top of round plate, a plurality of insertion holes are arranged on the top of round plate in equal angle annularly, a plurality of screw rods are movably inserted in a plurality of insertion holes, and the bottom end of a plurality of screw rods is respectively inserted in a plurality of thread holes.

[0007] An environment-friendly dust removal bag for the above-mentioned scheme, comprising a bag body and a hollow tube coaxially fixedly connected to the bottom of the circular plate, the top edge of the bag body is clamped by the bottom of the circular plate and the top of the fixed ring, a plurality of round bars are fixedly connected to the inner side wall of the bag body at equal intervals from top to bottom, a plurality of circular rings are connected to the outer peripheral surface of the hollow tube at equal intervals from top to bottom by the first connecting rod, the number of circular rings is equal to the number of round bars and is more distributed, a plurality of circular rings are located below a plurality of round bars respectively, and a driving assembly is arranged in the hollow tube.

[0008] The driving assembly is used to drive a plurality of round bars to move up and down synchronously.

[0009] Preferably, the driving assembly comprises a plurality of pairs of moving grooves arranged at equal intervals from top to bottom on the outer side wall of the hollow tube, the number of pairs of moving grooves is equal to the number of round bars, the moving grooves are in communication with the inner hole of the hollow tube, each pair of two moving grooves is symmetrically distributed on the outer side wall of the hollow tube, the driving assembly further comprises a blind tube movably inserted into the bottom end of the hollow tube, the closed end of the blind tube is located at the bottom end thereof, a plurality of pairs of limiting rods are fixedly connected to the outer peripheral surface of the blind tube at equal intervals from top to bottom, a plurality of pairs of limiting rods are respectively and slidably connected in a plurality of pairs of moving grooves, one end of a plurality of pairs of limiting rods away from the blind tube penetrates a plurality of pairs of moving grooves and is respectively fixedly connected to the inner side wall of a plurality of round bars, and the driving assembly further comprises a pushing structure, which is used to push the blind tube to move upward along the axial direction of the hollow tube. The advantages of this arrangement are that the limiting rods move up and down under the limitation of the moving grooves, the driving assembly can stably push the blind tube to move upward, thereby stably driving a plurality of round bars to move upward, and the round bars can stably fall in a straight line, thereby ensuring that the round bars do not deviate during the dust removal operation, so that the bag body is not damaged by radial pulling, and the reliability and service life of the environment-friendly dust removal bag are improved.

[0010] Preferably, the pushing structure comprises two first air inlet cavities symmetrically arranged on the outer side of the blind pipe, and the pushing structure further comprises two second air inlet cavities symmetrically arranged on the outer side of the blind pipe, the second air inlet cavities are located below the first air inlet cavities, a baffle is fixedly connected to the inner side wall of the blind pipe, an air hole is arranged at the top of the baffle, the diameter of the air hole is less than one tenth of the inner diameter of the blind pipe, the baffle is located below the first air inlet cavities and above the second air inlet cavities, and only one of the first air inlet cavities and the second air inlet cavities can be in communication with the moving groove at the same time, so that when the bag body is heavy due to the attachment of a large amount of dust, the round rod drives the blind pipe to move downward until the round rod collides with the circular ring, at which time the vibration generated by the collision is transmitted to the bag body, so that the dust attached to the bag body can be shaken off to achieve the cleaning effect of the bag body, when the round rod abuts against the lower circular ring, the second air inlet cavity is in communication with the moving groove, and the first air inlet cavity is no longer in communication with the moving groove, at this time, the gas passing through the bag body enters the blind pipe through the moving groove, the second air inlet cavity and the air hole and finally flows out from the top of the circular hole, and since the diameter of the air hole is very small, the gas flowing in the air hole pushes the baffle upward, and the baffle drives the blind pipe to move upward, and as the dust on the bag body is shaken off in the vibration, the weight of the bag body becomes lighter, at this time, the gas flowing in the air hole can fully push the baffle upward until the second air inlet cavity is no longer in communication with the moving groove, and the first air inlet cavity is in communication with the moving groove again, at this time, the gas flowing in the air hole flows to the circular hole through the moving groove and the first air inlet cavity, the cleaning operation is completed, and thus the cleaning operation does not need an additional power source, but only needs the pressure of the flowing filtered gas to complete the cleaning operation of the bag body, thereby effectively reducing the energy consumption of the dust removal bag and improving the environmental protection performance of the dust removal bag.

[0011] Preferably, the pushing structure further comprises an iron plate fixedly connected to the bottom end of the hollow pipe, a second through hole is arranged at the bottom center of the iron plate, the second through hole and the inner hole of the hollow pipe are coaxially arranged, and the bottom end of the blind pipe penetrates through the second through hole and is fixedly connected with a magnetic plate, and the magnetic plate can be attracted to the iron plate, so that the iron plate can be attracted by the magnetic plate, and only when the weight of the bag body, the round rod, the dust, the blind pipe and the limiting rod is greater than the attraction force of the magnetic plate to the iron plate, the round rod can fall downward and impact the circular ring to start the vibration cleaning operation of the bag body, so that the cleaning work can be intermittent, the cleaning operation is avoided from affecting the dust removal work too much, and the efficiency of the dust removal work is ensured.

[0012] In summary, the technical effects and advantages of the utility model are as follows:

[0013] 1. The utility model discloses, through the drive assembly of setting and drive multiple round bars up and down to respectively hit multiple annular rings, at this moment, the round bar will receive the vibration, and vibration force will be passed to the bag to make the dust adhered on the bag effectively shake down, improve the cleaning effect of bag dust, ensure that the dust removal work is efficiently and smoothly carried out, improve the reliability of the dust removal bag.

[0014] 2. The utility model discloses, through the push structure of setting, when carrying out the cleaning of dust adhered on the bag, need not additional power source to carry out the cleaning operation, just through the pressure of the gas flow of waiting for filtering to complete the cleaning operation of bag, effectively reduce the energy consumption of the dust removal bag, improve the environmental protection of the dust removal bag. ACCURACY

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the drawing needed to use in the embodiment or prior art description simple introduction, obviously, below description's drawing is only some of the utility model's embodiment, for the person skilled in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0016] Figure 1 It is a partial sectional view structural schematic drawing of a connecting structure in the embodiment of the utility model;

[0017] Figure 2 It is a top view of a connecting structure in the embodiment of the utility model;

[0018] Figure 3 It is a structural schematic drawing of an environmental protection dust removal bag in the embodiment of the utility model;

[0019] Figure 4 It is a first sectional view structural schematic drawing of an environmental protection dust removal bag in the embodiment of the utility model;

[0020] Figure 5 It is a second sectional view structural schematic drawing of an environmental protection dust removal bag in the embodiment of the utility model;

[0021] Figure 6 It is a third sectional view structural schematic drawing of an environmental protection dust removal bag in the embodiment of the utility model.

[0022] In the figure: 1, fixed plate; 101, mounting groove; 2, fixed ring; 21, first sealing ring; 22, second sealing ring; 3, round plate; 31, round hole; 32, insertion hole; 4, bag body; 41, round bar; 5, hollow tube; 51, first connecting rod; 52, round ring; 6, driving assembly; 61, moving groove; 62, blind pipe; 63, limiting rod; 64, pushing structure; 641, first air inlet cavity; 642, second air inlet cavity; 643, partition; 644, air hole; 645, iron plate; 646, magnetic plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Embodiment 1

[0025] Please refer to Figure 1 and Figure 2 A connecting structure is shown, which comprises a fixed plate 1, a plurality of mounting grooves 101 are formed in the top of the fixed plate 1, a first through hole is formed in the center of the bottom wall of the mounting groove 101, a plurality of threaded holes are formed in the bottom wall of the mounting groove 101 at equal angles in a ring shape, a fixed ring 2 is coaxially arranged on the bottom wall of the mounting groove 101, a first sealing ring 21 is arranged on the bottom of the fixed ring 2 through a first annular groove, the first sealing ring 21 is tightly arranged on the bottom wall of the mounting groove 101, a round plate 3 is inserted into the mounting groove 101, a round hole 31 is formed in the top of the round plate 3, a plurality of insertion holes 32 are formed in the top of the round plate 3 at equal angles in a ring shape, a plurality of threaded rods are movably inserted into the plurality of insertion holes 32, and the bottom ends of the plurality of threaded rods are respectively screwed into the plurality of threaded holes.

[0026] A second sealing ring 22 is arranged on the top of the fixed ring 2 through a second annular groove, the top of the second sealing ring 22 abuts against the bottom of the round plate 3, the top edge of the bag body 4 is tightly pressed in the second annular groove by the second sealing ring 22, the sealing performance of the mounting groove 101 and the first through hole is improved, and the dust removal work is ensured to be smoothly carried out.

[0027] Please refer to Figures 3-6The utility model provides an environmental protection dust removal bag for the connecting structure, which comprises a bag body 4 and a hollow tube 5 coaxially and fixedly connected at the bottom of the circular plate 3, a plurality of circular ribs 41 are fixedly connected on the inner side wall of the bag body 4 at equal intervals from top to bottom, a plurality of circular rings 52 are connected on the outer circumferential surface of the hollow tube 5 at equal intervals from top to bottom through first connecting rods 51, the number of the circular rings 52 is equal to that of the circular ribs 41 and is more distributed, and the plurality of circular rings 52 are respectively located on the lower side of the plurality of circular ribs 41; and a driving assembly 6 is arranged in the hollow tube 5.

[0028] The driving assembly 6 is used to drive the plurality of circular ribs 41 to move up and down synchronously.

[0029] With reference to Figure 5 and Figure 6 The driving assembly 6 comprises a plurality of pairs of moving grooves 61 which are opened on the outer side wall of the hollow tube 5 at equal intervals from top to bottom, the number of the pairs of moving grooves 61 is equal to that of the circular ribs 41, the moving grooves 61 are in communication with the inner hole of the hollow tube 5, each pair of two moving grooves 61 is symmetrically distributed on the outer side wall of the hollow tube 5, the driving assembly 6 further comprises a blind tube 62 which is movably inserted at the bottom end of the hollow tube 5, the closed end of the blind tube 62 is located at the bottom end thereof, a plurality of pairs of limiting rods 63 are fixedly connected on the outer circumferential surface of the blind tube 62 at equal intervals from top to bottom, the plurality of pairs of limiting rods 63 are respectively and slidably connected in the plurality of pairs of moving grooves 61, the ends of the plurality of pairs of limiting rods 63 away from the blind tube 62 penetrate through the plurality of pairs of moving grooves 61 and are respectively fixedly connected with the inner side wall of the plurality of circular ribs 41, and the driving assembly 6 further comprises a pushing structure 64 which is used to push the blind tube 62 to move upward along the axial line direction of the hollow tube 5.

[0030] Specifically, the driving assembly 6 stably pushes the blind tube 62 to move upward by moving up and down under the limiting of the limiting rods 63 in the moving grooves 61, so as to stably drive the plurality of circular ribs 41 to move upward, and the circular ribs 41 can stably fall in a straight line type, so as to ensure that the circular ribs 41 do not deviate when moving up and down to perform the dust removal operation, thus avoiding that the bag body 4 is damaged by being pulled in the radial direction, and improving the reliability and service life of the environmental protection dust removal bag.

[0031] With reference to Figures 4-6 The pushing structure 64 comprises two first air inlet cavities 641 which are symmetrically opened on the outer side surface of the blind tube 62, the pushing structure 64 further comprises two second air inlet cavities 642 which are symmetrically opened on the outer side surface of the blind tube 62, the second air inlet cavities 642 are located on the lower side of the first air inlet cavities 641, a partition plate 643 is fixedly connected on the inner side wall of the blind tube 62, an air hole 644 is opened on the top of the partition plate 643, the diameter of the air hole 644 is less than one tenth of the inner diameter of the blind tube 62, the partition plate 643 is located on the lower side of the first air inlet cavities 641 and on the upper side of the second air inlet cavities 642, and only one of the first air inlet cavities 641 and the second air inlet cavities 642 can be in communication with the moving grooves 61 at the same time.

[0032] Specifically, when the bag body 4 is heavy due to the attachment of a large amount of dust, the round rods 41 will drive the blind pipe 62 to move downward until the round rods 41 collide with the round rings 52, at which time the vibration generated by the collision will be transmitted to the bag body 4, so that the dust attached to the bag body 4 can be shaken off to achieve the cleaning effect of the bag body 4. When the round rods 41 abut against the lower round rings 52, at this time the second air inlet cavity 642 is coincident and communicated with the moving groove 61, while the first air inlet cavity 641 is no longer coincident and communicated with the moving groove 61. At this time, the gas passing through the bag body 4 will enter the blind pipe 62 through the moving groove 61, the second air inlet cavity 642 and the air hole 644 and finally flow out from the top of the round hole 31. Since the diameter of the air hole 644 is very small, the gas flowing in the air hole 644 will push the partition plate 643 upward, and the partition plate 643 will drive the blind pipe 62 to move upward. As the dust on the bag body 4 is shaken off in the vibration, the weight of the bag body 4 becomes lighter, at which time the gas flowing in the air hole 644 can fully push the partition plate 643 upward until the second air inlet cavity 642 is no longer coincident and communicated with the moving groove 61, and the first air inlet cavity 641 is coincident and communicated with the moving groove 61 again. At this time, the gas flowing in the air hole 644 will flow to the round hole 31 through the moving groove 61 and the first air inlet cavity 641, and the cleaning operation is completed. In this way, the cleaning operation of the bag body 4 is completed only by the pressure of the gas flowing in the air hole 644, without the need for an additional power source, which effectively reduces the energy consumption of the dust removal bag and improves the environmental protection of the dust removal bag.

[0033] Reference Figure 4 And Figure 6 The pushing structure 64 further comprises an iron plate 645 fixedly connected to the bottom end of the hollow pipe 5, and a second through hole is formed in the bottom center of the iron plate 645, which is coaxially distributed with the inner hole of the hollow pipe 5. The bottom end of the blind pipe 62 penetrates the second through hole and is fixedly connected with a magnetic plate 646, which can be adsorbed to the iron plate 645.

[0034] Specifically, the iron plate 645 is adsorbed by the magnetic plate 646, so that the round rods 41 can only fall downward and impact the round rings 52 to start the vibration cleaning operation of the bag body 4 when the weight of the bag body 4, the round rods 41, the dust, the blind pipe 62, the limiting rod 63 and the magnetic plate 646 is greater than the adsorption force of the magnetic plate 646 to the iron plate 645. In this way, the cleaning work can be carried out intermittently, avoiding excessive cleaning operation affecting the dust removal work, and ensuring the efficiency of the dust removal work.

[0035] It should be explained finally: above only is the preferred embodiment of the utility model and is not used for limiting the utility model, although the utility model has been explained in detail with reference to foregoing embodiment, for the skilled person in the art, it still can modify the technical scheme recorded in foregoing each embodiment or make equivalent replacement to part technical features, any modification, equivalent replacement, improvement etc. that is done within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A connection structure comprising a fixing plate (1), characterized in that: The fixing plate (1) top is provided with a plurality of mounting slots (101), the first through hole is arranged in the center of the bottom wall of the mounting slot (101), a plurality of threaded holes are arranged on the bottom wall of the mounting slot (101) at equal angles in a ring shape, the fixing ring (2) is coaxially arranged on the bottom wall of the mounting slot (101), the first sealing ring (21) is arranged on the bottom of the fixing ring (2) through the first annular groove, the first sealing ring (21) is tightly arranged on the bottom wall of the mounting slot (101), the circular plate (3) is inserted into the mounting slot (101), the circular hole (31) is arranged on the top of the circular plate (3), a plurality of insertion holes (32) are arranged on the top of the circular plate (3) at equal angles in a ring shape, a plurality of screw rods are movably inserted into the plurality of insertion holes (32), and the bottom ends of the plurality of screw rods are threadedly inserted into the plurality of threaded holes.

2. An environmental protection dust removal bag for the connecting structure of claim 1, comprising a bag body (4) and a hollow tube (5) coaxially and fixedly connected at the bottom of the circular plate (3), characterized in that: The top edge of the bag body (4) is clamped by the bottom of the circular plate (3) and the top of the fixing ring (2), a plurality of round bars (41) are fixedly connected to the inner side wall of the bag body (4) at equal intervals from top to bottom, a plurality of circular rings (52) are connected to the outer circumferential surface of the hollow tube (5) at equal intervals from top to bottom through the first connecting rod (51), the number of the circular rings (52) is equal to the number of the round bars (41) and is more distributed, and the plurality of circular rings (52) are located below the plurality of round bars (41), respectively. The driving assembly (6) is used for driving the plurality of round bars (41) to move up and down synchronously.

3. An environmentally friendly duster bag according to claim 2, wherein: The driving assembly (6) comprises a plurality of pairs of moving grooves (61) which are arranged on the outer side wall of the hollow tube (5) at equal intervals from top to bottom, the number of the pairs of moving grooves (61) is equal to the number of the round bars (41), the moving grooves (61) are in communication with the inner hole of the hollow tube (5), each pair of two moving grooves (61) is symmetrically distributed on the outer side wall of the hollow tube (5), the driving assembly (6) further comprises a blind tube (62) movably inserted into the bottom end of the hollow tube (5), the closed end of the blind tube (62) is located at the bottom end, a plurality of pairs of limiting rods (63) are fixedly connected to the outer circumferential surface of the blind tube (62) at equal intervals from top to bottom, a plurality of pairs of the limiting rods (63) are slidably connected in a plurality of pairs of the moving grooves (61), respectively, one end of the plurality of pairs of the limiting rods (63) away from the blind tube (62) penetrates the plurality of pairs of the moving grooves (61) and is fixedly connected to the inner side wall of the plurality of round bars (41), respectively, and the driving assembly (6) further comprises a pushing structure (64), which is used for pushing the blind tube (62) to move upward along the axial line of the hollow tube (5).

4. An environmentally friendly duster bag according to claim 3, wherein: The push structure (64) includes two first air inlet cavities (641) which are symmetrically arranged on the outer side of the blind pipe (62), and the push structure (64) further includes two second air inlet cavities (642) which are symmetrically arranged on the outer side of the blind pipe (62), the second air inlet cavities (642) are located below the first air inlet cavities (641), a partition plate (643) is fixedly connected to the inner side wall of the blind pipe (62), an air hole (644) is arranged at the top of the partition plate (643), the diameter of the air hole (644) is less than one tenth of the inner diameter of the blind pipe (62), the partition plate (643) is located below the first air inlet cavities (641) and above the second air inlet cavities (642), and only one of the first air inlet cavities (641) and the second air inlet cavities (642) can be in communication with the moving groove (61) at the same time.

5. An environmentally friendly duster bag according to claim 4, wherein: The push structure (64) further includes an iron plate (645) which is fixedly connected to the bottom end of the hollow pipe (5), a second through hole is arranged at the bottom center of the iron plate (645), the second through hole and the inner hole of the hollow pipe (5) are coaxially arranged, the bottom end of the blind pipe (62) penetrates through the second through hole and is fixedly connected with a magnetic plate (646), and the magnetic plate (646) can be adsorbed to the iron plate (645).

Citation Information

Patent Citations

  • An environmentally friendly dust collector filter bag

    CN109464860B