CN210409856U

CN210409856U - Dust removing device

Info

Publication number: CN210409856U
Application number: CN201920856643.4U
Authority: CN
Inventors: 王学成; 杨明; 伍振峰; 丁楚良; 周步高; 王雅琪; 李远辉
Original assignee: Jiangxi University of Traditional Chinese Medicine
Current assignee: Jiangxi University of Traditional Chinese Medicine
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-04-28
Anticipated expiration: 2029-06-06

Abstract

The utility model belongs to the technical field of the environmental protection equipment technique and specifically relates to a dust collector is related to there is the easy damaged inefficacy technical problem of sack among the alleviating prior art. The device comprises a shell, a filtering mechanism and a vibrating motor; the shell comprises a cylinder body and a top cover covering the top of the cylinder body; a sealing soft connecting piece is arranged between the top cover and the cylinder body, and the sealing soft connecting piece is configured to be capable of deforming in the vertical direction; the filtering mechanism is arranged on the inner wall of the top cover; the vibration motor is arranged on the outer wall of the top cover; and the vibration motor is configured to drive the top cover to vibrate so as to vibrate the filtering mechanism. The area of the filtering mechanism is continuously updated through the vibration effect, the damage to the filtering mechanism is small, and the problem of cloth bag damage and failure can be avoided.

Description

Dust removing device

Technical Field

The utility model belongs to the technical field of the environmental protection equipment technique and specifically relates to a dust collector is related to.

Background

The purpose of the dust remover is to separate dust from air, so that the air discharged to the environment meets the discharge standard on one hand, and the solid dust is collected to prevent material loss on the other hand. The dust remover is used as an important auxiliary device and is widely applied to the fields of pharmacy, food, chemical industry and the like, wherein in the fields of pharmacy and food, dust removers with different types and models can be selected and configured in the processes of crushing, drying, sterilizing and the like of materials, and at the moment, powder materials collected by the dust remover are often required materials, so that higher requirements are placed on the selection of the dust remover.

The dust collector can be divided into a dry mechanical dust collector, a wet dust collector, a bag type dust collector, an electric dust collector and the like, wherein the bag type dust collector is a dust collector taking a fiber woven fabric or a filling layer as a filter medium, is mainly used in places for trapping fine dust, is applied to an exhaust dust collection system and an air intake system, and has a wider range in the aspects of application, form, dust collection air volume scale and action efficiency. In recent years, due to the continuous development of novel filter materials, the development of fiber filtering technology is accelerated, new products are continuously appeared, and the application field of the bag type dust collector is gradually widened.

However, the bag filter is easy to block the fiber filter cloth due to the small particle size of the trapped powder, so that the filtering area is gradually reduced along with the extension of the working time, and the dust removal efficiency is seriously influenced. Although the filtering area of the cloth bag is continuously updated by commonly using the air pulse back blowing cloth bag, the problems that the cloth bag is easy to damage and lose efficacy, a cloth bag filter element is difficult to disassemble, wash and replace and the like still exist, and great potential safety hazards exist in practical application.

SUMMERY OF THE UTILITY MODEL

The utility model provides a in view of above-mentioned problem, its purpose is providing a dust collector to there is the easy damaged inefficacy technical problem of sack among the alleviating prior art.

For realizing the purpose of the utility model, the following technical proposal is adopted:

a dust removal device comprises a shell, a filtering mechanism and a vibration motor;

the shell comprises a cylinder body and a top cover covering the top of the cylinder body; a sealing soft connector is arranged between the top cover and the barrel body, and the sealing soft connector is configured to be capable of deforming in the vertical direction;

the filtering mechanism is arranged on the inner wall of the top cover;

the vibration motor is arranged on the outer wall of the top cover; and the vibration motor is configured to drive the top cover to vibrate so as to vibrate the filtering mechanism.

Furthermore, the shell further comprises an elastic connecting piece, one end of the elastic connecting piece is connected with the top cover, and the other end of the elastic connecting piece is connected with the cylinder body; and the elastic connecting piece is configured to enable the top cover to always have a rising movement tendency.

Still further, the housing further comprises an orifice plate, a side of the orifice plate being mounted on an inner wall of the top cover; the pore plate is provided with a mounting hole for mounting the filtering mechanism;

the orifice plate divides the space inside the housing into two regions; the two regions are communicated through the filtering mechanism.

Still further, the filter mechanism includes a filter cartridge holder and a filter cartridge assembly;

the top of the filter element bracket is arranged on the inner wall of the shell, and the interior of the filter element bracket is hollow so as to form an air flow channel;

the filter element assembly comprises a filter membrane, two opposite sides of the filter membrane are connected and enclosed to form a cylindrical structure, and the cylindrical structure is sleeved on the side surface and the bottom surface of the filter element support.

Further, the filter element bracket comprises a hollow cylinder main body and a plurality of strip-shaped brackets;

the top of the hollow cylinder main body is arranged on the inner wall of the shell, and the hollow cylinder main body is hollow;

the strip-shaped supports are arranged at the bottom of the hollow cylinder main body at intervals and used for supporting the filter membrane.

Furthermore, the filter element support further comprises a plurality of annular supports arranged along the length direction of the strip-shaped support at intervals, and each strip-shaped support is connected with the annular supports.

Furthermore, the filter element support further comprises a fixing cap arranged at the top of the hollow cylinder main body, and the fixing cap is arranged on the inner wall of the top cover.

Furthermore, the two opposite sides of the filter membrane are connected through a zipper and are enclosed into the cylindrical structure;

the filter element assembly also comprises a sealing strip, and the sealing strip is connected with the filter membrane; and the sealing strip can cover the zipper and the outer part of the zipper under the working condition that the filter membrane is enclosed into the tubular structure.

Furthermore, the filter element group spare still including set up in the fixed neck area at the top of filter membrane the both ends of fixed neck area all are provided with the thread gluing area, two the thread gluing area can the filter membrane encloses to establish into under the operating mode of tubular structure, bond each other so that fixed neck area attached in the outside of filter core support.

Furthermore, a connecting flange is arranged at the bottom of the cylinder body.

Technical scheme more than combining, the utility model discloses following beneficial effect has:

a dust removing device comprises a shell, a filtering mechanism and a vibrating motor; the shell comprises a cylinder body and a top cover covering the top of the cylinder body; a sealing soft connecting piece is arranged between the top cover and the cylinder body, and the sealing soft connecting piece is configured to be capable of deforming in the vertical direction; the filtering mechanism is arranged on the inner wall of the top cover; the vibration motor is arranged on the outer wall of the top cover; and the vibration motor is configured to drive the top cover to vibrate so as to vibrate the filtering mechanism.

In foretell dust collector, vibrating motor can drive the shell vibration for sealed soft connecting piece takes place to warp in vertical direction, and the top cap is followed sealed soft connecting piece vibration at sealed soft connecting piece's deformation in-process, and the filtering mechanism who installs in the inner wall of top cap also can vibrate thereupon, makes the dust particle who is held back in the filtering mechanism surface break away from the surface of filtering mechanism under the effect of vibration, and the filter area of filtering mechanism alright updates. The utility model discloses in, make filtering mechanism's area through the vibration effect constantly update, compare with the mode of the air pulse blowback sack among the prior art, it is little to filtering mechanism's harm, also can not have the air current and act on the problem that the sack leads to the sack damage to become invalid repeatedly, the potential safety hazard is little.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a dust removing device provided in an embodiment of the present invention;

fig. 2 is a schematic structural view of a filter element bracket in the dust removing device provided by the embodiment of the present invention;

fig. 3 is a front view of a filter element holder in the dust removing device according to the embodiment of the present invention;

fig. 4 is a bottom view of the annular bracket in the dust removing device provided by the embodiment of the present invention;

fig. 5 is a front view of a filter element assembly in a dust removing device according to an embodiment of the present invention.

Icon: 100-a housing; 110-sealing soft joint; 120-a resilient connecting element; 130-a cylinder; 131-a connecting flange; 140-a top cover; 141-induced draft; 150-well plate; 200-a filter mechanism; 210-a cartridge holder; 211-a hollow cartridge body; 212-bar-shaped support; 213-a ring-shaped support; 214-a retaining cap; 220-a filter element assembly; 221-filter membrane; 222-a zipper; 223-a zipper; 224-a sealing strip; 225-fixation of the neck strap; 226-hook and loop fastener; 300-vibration motor.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following explains an embodiment of the dust removing apparatus according to the present invention.

The bag type dust collector is easy to block the fiber filter cloth due to small particle size of the trapped powder, so that the filtering area is gradually reduced along with the extension of the working time, and the dust collection efficiency is seriously influenced. Although the filtering area of the cloth bag is continuously updated by commonly using the air pulse back blowing cloth bag, the problems that the cloth bag is easy to damage and lose efficacy, a cloth bag filter element is difficult to disassemble, wash and replace and the like still exist, and great potential safety hazards exist in practical application.

In contrast, the present embodiment provides a dust removing device.

Referring to fig. 1, the dust removing apparatus includes a housing 100, a filter mechanism 200, and a vibration motor 300; the housing 100 is provided with a sealing soft joint 110, the sealing soft joint 110 divides the housing 100 into two parts, and the sealing soft joint 110 is configured to be capable of deforming in a vertical direction; the filtering mechanism 200 is installed on the inner wall of the casing 100, and the connection position of the filtering mechanism 200 and the casing 100 is located above the sealing soft connector 110; the vibration motor 300 is installed on the outer wall of the casing 100; and the vibration motor 300 is configured to drive the housing 100 to vibrate and drive the sealing soft connector 110 to deform in the vertical direction, and further drive the portion of the housing 100 located above the sealing soft connector 110 and the filtering mechanism 200 to vibrate, so that the dust particles on the surface of the filtering mechanism 200 are separated from the filtering mechanism 200.

In the above dust removing device, the vibration motor 300 can drive the housing 100 to vibrate, so that the sealing soft connector 110 deforms in the vertical direction, the portion of the housing 100 above the sealing soft connector 110 vibrates along with the sealing soft connector 110 in the deformation process of the sealing soft connector 110, the filtering mechanism 200 mounted on the inner wall of the portion of the housing 100 above the sealing soft connector 110 also vibrates along with the sealing soft connector, so that dust particles trapped on the surface of the filtering mechanism 200 are separated from the surface of the filtering mechanism 200 under the vibration effect, and the filtering area of the filtering mechanism 200 can be updated. In this embodiment, the area of the filtering mechanism 200 is continuously updated through the vibration effect, and compared with the mode of blowing the cloth bag back by air pulse in the prior art, the damage to the filtering mechanism 200 is small, the problem of breakage and failure of the cloth bag caused by the repeated action of air flow on the cloth bag is avoided, and the potential safety hazard is small.

Specifically, the method comprises the following steps:

referring to fig. 1, the housing 100 includes a sealing soft member 110, an elastic connection member 120, a cylinder 130, a top cover 140, and an orifice plate 150.

The sealing soft joint 110 is provided on the housing 100 and divides the housing 100 into two parts, and the sealing soft joint 110 can be elastically deformed. When part or all of the housing 100 is in a vibration state, the sealing soft-fitting member 110 may be elastically deformed by the vibration of other parts of the housing 100, thereby driving part of the housing 100 to vibrate. The sealing bellows 110 can on the one hand intensify the vibrations of the housing 100. On the other hand, the housing 100 can be sealed. The sealing sock 110 may be provided as rubber.

One end of the elastic connection member 120 is connected to a portion of the outer case 100 located above the sealing soft joint 110, and the other end of the elastic connection member 120 is connected to a portion of the outer case 100 located below the sealing soft joint 110; and the elastic connection 120 is configured to always have a rising tendency of movement of the portion of the housing 100 above the sealing soft connection 110. The elastic connection 120 can promote the recovery speed of the sealing soft joint 110 when it is elastically deformed. Specifically, the elastic connection member 120 may be provided as a coil spring. The portions of the housing 100 at the two ends of the sealing soft connector 110 are provided with mounting seats, the two ends of the coil spring can be respectively mounted on the mounting seats, and the coil spring can be welded on the mounting seats or can be detachably connected with the mounting seats, such as clamping connection. When the vibration of the outer case 100 occurs, a portion of the outer case 100 located above the sealing soft joint 110 is lowered and compresses the sealing soft joint 110 and the elastic joint 120, so that the sealing soft joint 110 and the elastic joint 120 are elastically deformed. The sealing soft joint 110 and the elastic joint 120 generate a restoring force while being elastically deformed, so that a portion of the housing 100 above the sealing soft joint 110 is lifted. In this way, the portion of the housing 100 located above the sealing soft joint 110 can be repeatedly lifted and lowered, and vibration can be generated in the process of repeated lifting and lowering.

The cylinder 130 is formed as a portion of the casing 100 below the sealing soft member 110, and one end of the elastic connection member 120 is mounted on the cylinder 130. The inside of the cylinder 130 is hollow to form a filtering space. The bottom of the cylinder 130 is provided with a connecting flange 131, and the connecting flange 131 is mounted on other devices, so that the filtering space is communicated with other devices, and the air flow to be filtered enters the cylinder 130 for filtering.

The top cap 140 covers the top of the cylinder 130 to form a portion of the housing 100 above the sealing soft joint 110. A sealing soft connector 110 is arranged between the top cover 140 and the cylinder body 130; the filter mechanism 200, the vibration motor 300, and an end of the elastic connection member 120 facing away from the cylinder 130 are all mounted on the top cap 140. The top cap 140 is hollow to form a space for gas to flow through, and an air inlet 141 for communicating the inside of the top cap 140 with the external environment is provided on the top cap 140, and the gas is discharged to the external environment through the air inlet 141. The space inside the top cover 140 is communicated with the filtering space inside the cylinder 130 through the filtering mechanism 200, after the air flow in the cylinder 130 is filtered by the filtering mechanism 200, the material is retained outside the filtering mechanism 200, and the air passes through the filtering mechanism 200 and enters the top cover 140.

The orifice plate 150 may be mounted on an inner wall of the top cap 140 and can be lifted and vibrated along with the top cap 140. The orifice plate 150 divides the cylinder body 130 and the top cap 140 into the above two regions to prevent the material in the cylinder body 130 from entering the top cap 140 and being discharged to the external environment, and the orifice plate 150 is used to block the material. The orifice plate 150 is provided with a mounting hole for mounting the filter mechanism 200, and the filter mechanism 200 communicates the cylinder 130 with the top cover 140. In order to ensure effective sealing, a sealing ring is arranged at the mounting hole.

In summary, the working principle that the housing 100 drives the filtering mechanism 200 to vibrate to shake off the material on the surface of the filtering mechanism 200 and further update the filtering area of the filtering mechanism 200 is as follows:

start vibrating motor 300, vibrating motor 300 drives top cap 140 and goes up and down, top cap 140 compresses sealed soft connector 110 and elastic connection piece 120, make sealed soft connector 110 and elastic connection piece 120 take place elastic deformation, elastic connection piece 120 makes top cap 140 rise, with this motion of aggravation top cap 140, install in the inside orifice plate 150 of top cap 140 and also follow top cap 140 and go up and down and vibrate, and drive filter mechanism 200 vibration, with the material on shake-off filter mechanism 200 surface, update filter mechanism 200's filter area. Meanwhile, the air flow enters the top cover 140 from the cylinder 130 through the filter mechanism 200 and is exhausted to the external environment.

Referring to fig. 2-5, the filter mechanism 200 includes a cartridge support 210 and a cartridge assembly 220 mounted to the sides and bottom of the cartridge support 210.

The top of the cartridge holder 210 is mounted on the inner wall of the housing 100, and the inside of the cartridge holder 210 is hollow to form an air flow passage. The cartridge holder 210 includes a hollow cylinder body 211, a plurality of bar-shaped holders 212, an annular holder 213, and a fixing cap 214. Specifically, the method comprises the following steps:

referring to fig. 2, the top of the hollow cylinder body 211 is installed in the installation hole of the orifice plate 150, and both ends of the hollow cylinder body 211 are open and hollow to form an air flow passage. The hollow cylinder body 211 is used to fix the bar bracket 212.

Referring to fig. 2 and 3, a plurality of bar brackets 212 are disposed at intervals at the bottom of the hollow cylinder body 211 for supporting the filter element assembly 220, and at this time, the filter mechanism 200 is located inside the cylinder body 130. A plurality of bar brackets 212 may be evenly distributed around the center of the hollow cylinder body 211 to increase the deployment area of the filter element assembly 220, i.e., to increase the filtration area. The bar bracket 212 may be provided in a columnar structure. The strip bracket 212 may also be disposed on top of the hollow cartridge body 211, with the filter mechanism 200 positioned within the top cap 140. The strip bracket 212 may also extend through the hollow cartridge body 211, with the filter mechanism 200 partially disposed within the top cap 140 and partially disposed within the cartridge body 130. Preferably, a plurality of bar brackets 212 are provided at intervals at the bottom of the hollow cylinder body 211.

Referring to fig. 2 and 4, the ring bracket 213 is disposed inside the plurality of bar brackets 212 and contacts each bar bracket 212 to reinforce the strength of the bar bracket 212. An annular bracket 213 is provided on an end surface of the bar bracket 212 facing away from one end of the hollow cylinder main body 211, and a plurality of annular brackets 213 may be provided at intervals in the longitudinal direction of the bar bracket 212. The annular supports 213 may be arranged in a circular configuration that is tangential to each of the bar supports 212. The annular support 213 may also be configured as a star-shaped structure (see fig. 4), the intersection point of the star-shaped structure is divided into an outer intersection point and an inner intersection point, the number of the outer intersection points is the same as that of the strip-shaped supports 212, and the outer intersection points are connected to the strip-shaped supports 212. The ring support 213 may also be provided in a polygonal configuration.

The fixing cap 214 is mounted on an inner wall of the housing 100, and specifically, the fixing cap 214 is provided at a position of the hollow cylinder main body 211 connected to the orifice plate 150. The fixing cap 214 is provided as a protruding portion protruding from the center of the hollow cylinder main body 211 toward the side portion of the hollow cylinder main body 211, and the outer diameter of the protruding portion is not smaller than the aperture of the mounting hole, and when the outer diameter of the protruding portion is equal to the aperture of the mounting hole, the protruding portion can be screwed with the orifice plate 150. When the external diameter of bellying is greater than the aperture of mounting hole, the bellying can offset with the top surface of orifice plate 150, and the bellying can adopt connected modes such as welding, splice with the top surface of orifice plate 150, and hollow cylinder main part 211 runs through the mounting hole of perforated plate 150, establishes the sealing washer at the outside cover of hollow cylinder main part 211, and the sealing washer can set up in the mounting hole, also can embolia by the bottom of hollow cylinder main part 211, and the sealing washer offsets with the bottom surface of orifice plate 150.

Referring to fig. 2, the filter cartridge assembly 220 includes a filter membrane 221, a zipper 222, a zipper 223, a sealing strip 224, a securing neck strap 225, and a fastening tape 226. Specifically, the method comprises the following steps:

the opposite two sides of the filter membrane 221 are connected and enclosed into a cylindrical structure, the cylindrical structure is sleeved on the side surface and the bottom surface of the filter element bracket 210, and gas can pass through the filter membrane 221 and enter the hollow cylinder main body 211.

The two sides of the filter membrane 221 can be connected by a zipper 222 and a zipper 223, specifically: a first zipper is arranged on one side of the filter membrane 221, a second zipper is arranged on the other side of the filter membrane 221, and the second zipper is matched with the first zipper. A zipper 223 is provided on the first zipper or the second zipper, the second zipper or the first zipper can be inserted into the zipper 223, and the zipper 222 ascends in the length direction of the zipper 223 to lock the first zipper and the second zipper, at this time, the filter film 221 is formed in a cylindrical structure, and the zipper 222 descends in the length direction of the zipper 223 to unlock the first zipper and the second zipper. The filter membrane 221 is easily disassembled and replaced by connecting the zipper 222 and the zipper 223 to both sides of the filter membrane 221.

The both sides of filter membrane 221 can also be connected through magic subsides, specifically: the magic tape comprises a hair tape and a thorn tape, wherein the hair tape is arranged on one side of the filter membrane 221, and the thorn tape is arranged on the other side of the filter membrane 221. When the felt and the stab-in are bonded, the filter 221 is formed in a cylindrical structure. The magic tape is used for connecting the two sides of the filter membrane 221, so that the structure is simple, and the filter membrane 221 is convenient to disassemble, assemble and replace.

Referring to fig. 5, the sealing strip 224 is connected to the filter membrane 221; and the seal strip 224 can cover the outside of the butted portion of the filter membranes 221 under the condition that the filter membranes 221 are surrounded into a cylindrical structure. Specifically, the seal strip 224 is attached to one side of the filter 221, and a felt is provided on the inner side of the seal strip 224 and a stab is provided on the other side of the filter 221, and the felt and the stab are bonded to each other so that the seal strip 224 covers the outside of the abutting portion of the filter 221 when the filter 221 is enclosed in a tubular structure. In the condition where the filter membrane 221 is connected to the zipper 223 by the zipper 222, the sealing strip 224 can cover the outside of the zipper 222 and the zipper 223. Under the working condition that the filter membrane 221 is connected through the magic tape, the sealing strip 224 can cover the outside of the magic tape. The sealing strip 224 is used for placing materials from the gap of the abutting part of the filter membrane 221 into the hollow cylinder body 211.

Referring to fig. 5, the fixing neck strap 225 is disposed on the top of the filter membrane 221, the fastening tapes 226 are disposed on both ends of the fixing neck strap 225, and the two fastening tapes 226 can be bonded to each other under the condition that the filter membrane 221 is surrounded into a cylindrical structure, so that the fixing neck strap 225 is attached to the outside of the filter cartridge holder 210. Specifically, the fixing neck strap 225 is disposed on the top of the filter membrane 221 and can be folded along with the filter membrane 221, the fastening tapes 226 are disposed at both ends of the fixing neck strap 225, the fastening tapes 226 at both ends are disposed on both sides of the fixing neck strap 225, and when the fixing neck strap 225 is enclosed into a cylindrical structure along with the filter membrane 221, the two fastening tapes 226 can be bonded to enable the fixing neck strap 225 to be tightly attached to the filter element support 210, so as to fix the filter membrane 221.

In conclusion, the dust collector of this embodiment has following beneficial effect:

(1) the effect object of vibration effect is filter core support 210, compares with the mode of the air pulse blowback sack among the prior art, and is little to filter membrane 221's harm, also can not have the air current and act on the sack repeatedly and lead to the problem of sack damage inefficacy, and the potential safety hazard is little.

(2) The filter membrane 221 is connected and enclosed into a cylindrical structure through the zipper 222 and the zipper 223, and the top of the filter membrane 221 is fixed through the fixing neck strap 225, so that the filter membrane 221 is convenient to disassemble and assemble.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A dust removal device is characterized by comprising a shell, a filtering mechanism and a vibration motor;

the filtering mechanism is arranged on the inner wall of the top cover;

2. The dust collector of claim 1, wherein the housing further comprises an elastic connecting member, one end of the elastic connecting member is connected with the top cover, and the other end of the elastic connecting member is connected with the cylinder; and the elastic connecting piece is configured to enable the top cover to always have a rising movement tendency.

3. The dust extraction apparatus of claim 1, wherein the housing further comprises an orifice plate, a side of the orifice plate being mounted on an inner wall of the top cover; the pore plate is provided with a mounting hole for mounting the filtering mechanism;

4. The dust extraction apparatus of claim 1, wherein the filter mechanism comprises a filter cartridge holder and a filter cartridge assembly;

5. The dust removing device according to claim 4, wherein the filter cartridge holder comprises a hollow cylinder main body and a plurality of bar-shaped holders;

6. The dust collector as claimed in claim 5, wherein said filter element support further comprises a plurality of ring supports spaced apart along a length direction of said bar support, each of said bar supports being connected to said ring support.

7. The dust extraction apparatus of claim 5, wherein the filter cartridge holder further comprises a fixing cap disposed at a top portion of the hollow cylinder body, the fixing cap being mounted on an inner wall of the top cover.

8. The dust collector as claimed in claim 4, wherein the opposite sides of the filter membrane are connected by a zipper and enclosed into the cylindrical structure;

9. The dust removing device of claim 8, wherein the filter element assembly further comprises a fixing neck strap disposed on the top of the filter membrane, and fastening straps are disposed at two ends of the fixing neck strap, and the two fastening straps can be bonded to each other under the condition that the filter membrane is enclosed into the cylindrical structure, so that the fixing neck strap is attached to the outside of the filter element support.

10. The dust removing apparatus of claim 1, wherein a coupling flange is provided at a bottom of the cylinder.