CN212548676U

CN212548676U - Dust collecting and filtering box

Info

Publication number: CN212548676U
Application number: CN202020832822.7U
Authority: CN
Inventors: 陈松
Original assignee: First Rare Materials Co Ltd
Current assignee: Kunming Forerunner New Material Technology Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-02-19
Anticipated expiration: 2030-05-18

Abstract

The utility model relates to a filter equipment technical field discloses a dust collection rose box, the power distribution box comprises a box body, the inside of box is injectd and is had the chamber of holding, and the box is equipped with air intake and air outlet respectively including relative first mounting panel and the second mounting panel that sets up on first mounting panel and the second mounting panel, and one side of box is equipped with the operation mouth, be equipped with the apron on the operation mouth, a plurality of filter screen subassemblies can connect with inserting and pulling hold the intracavity, it is a plurality of the slope distributes in turn of filter screen subassembly, the one end of filter screen subassembly with first mounting panel links to each other, the other end of filter screen subassembly with the second mounting panel links to each other, each the filter screen subassembly is in it distributes to be the W style of calligraphy between first mounting panel and the second. Adopt the utility model discloses technical scheme's dust collection rose box, simple structure, the installation is dismantled conveniently and the filter effect is better, is convenient for dismantle the filter screen to be convenient for retrieve the beneficial material that needs to be retrieved.

Description

Dust collecting and filtering box

Technical Field

The utility model relates to a filter equipment technical field especially relates to a rose box is collected to dust.

Background

The metallic materials used in industry are all from mineral resources. As mineral resources are limited and non-renewable, these resources are continually being reduced as humans continue to develop.

The dust in the air can be filtered to external filter equipment in the factory building of production rare metal and factory exhaust department usually to retrieve beneficial substance that contains wherein, however current filter equipment area is big, and the dismouting is inconvenient, and the filter screen dismouting is inconvenient from this, and furtherly, inconvenient retrieves the material that needs to retrieve, influences work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a rose box is collected to dust, this rose box is collected to dust simple structure, and the installation is dismantled conveniently and the filter effect is better, is convenient for dismantle the filter screen to be convenient for retrieve the beneficial material that needs were retrieved.

In order to realize the above-mentioned purpose, the utility model provides a dust collection rose box, the power distribution box comprises a box body, the inside of box is injectd and is had the chamber of holding, the box is including relative first mounting panel and the second mounting panel that sets up, be equipped with air intake and air outlet on first mounting panel and the second mounting panel respectively, one side of box is equipped with the operation mouth, be equipped with the apron on the operation mouth, a plurality of filter screen subassemblies can connect with inserting and pulling hold the intracavity, it is a plurality of the slope distributes in turn of filter screen subassembly, the one end of filter screen subassembly with first mounting panel links to each other, the other end of filter screen subassembly with the second mounting panel links to each other, each the filter screen subassembly is in be W style of calligraphy and distributes between first mounting panel and the second mounting.

Preferably, first mounting panel with all be equipped with parallel arrangement's a plurality of installation component on the second mounting panel, it is a plurality of installation component certainly the operation mouth to the inside that holds the chamber is followed the length direction of box extends the setting, and is a plurality of installation component is all including two installing framves that are the contained angle and arrange, two interval between the installing frame certainly first mounting panel or the second mounting panel to the inside that holds the chamber increases gradually, each the filter screen subassembly passes through the installing frame and installs first mounting panel with on the second mounting panel.

Preferably, the included angle between the axes of the two adjacent mounting frames is α, and the value range of α is as follows: alpha is more than or equal to 20 degrees and less than or equal to 70 degrees.

Preferably, the filter screen assembly comprises a filter screen and a quick-release bracket, the quick-release bracket is a W-shaped bracket made of metal, and the filter screen and the quick-release bracket are inserted into the mounting positions defined by the mounting frames on the first mounting plate and the second mounting plate.

Preferably, the filter screen subassembly still includes the filter screen support, the quick detach support with the filter screen support sets up respectively the both sides of filter screen, the quick detach support the filter screen with the filter screen support is inserted and is established first mounting panel with on the second mounting panel in the installation position that the installing frame was injectd.

Preferably, the filter screen is further provided with filter cotton.

Preferably, the installing frame is rectangular open slot, the tank bottom of open slot with first mounting panel or the second mounting panel links to each other, the notch orientation of open slot hold the inside setting in chamber.

Preferably, the shape of the air inlet is square.

Preferably, the cover plate is rotatably connected to the side wall of the operation opening through a hinge, and a locking device is arranged on one side, opposite to the hinge, of the cover plate.

Preferably, a support is arranged at the bottom of the box body, and the box body is fixed to the top of the support.

The embodiment of the utility model provides a rose box is collected to dust, compare with prior art, its beneficial effect lies in:

1. the box body is arranged, the filter screen assemblies are connected in the box body in a pluggable manner, an operation port is formed in one side of the box body, the filter screen assemblies can be conveniently detached and installed through the operation port, the cover plate is arranged on the operation plate, the box body is conveniently closed in use, the filtering effect is improved, the problem that the filter box and the filtering device in the prior art are troublesome to replace is solved, only the cover plate on the side surface needs to be opened, the filter screen assemblies can be pulled out from the operation port, the mounting mode of the filter screen module is special, the detachment and installation are simple and rapid, and the replacement efficiency is high; after the replacement is finished, the filter screen assembly is inserted back from the operation port, and the filter screen assembly can be continuously used by closing the side door according to the drawer type principle after all the filter modules are replaced; the filter screen assembly is convenient to replace, low in cost and convenient to disassemble and assemble, labor intensity of personnel is reduced, and maintenance efficiency is high.

2. The filter screen assemblies are alternately and obliquely distributed, and each filter screen assembly is distributed between the first mounting plate and the second mounting plate in a W shape, so that the contact area between the filter screen and gas entering the box body of the filter device is increased, the volume of the box body is reduced, and the occupied space is saved. The filter screen assembly is repeatedly arranged in a multilayer folding manner, the whole machine is small in size, the occupied space is small, the installation space is effectively saved, the filter screen assembly can be installed and used in the limited space of the installation space, the workshop space is saved, and meanwhile, the filter screen assembly is convenient to transport.

3. Further, the filter device box of this embodiment adopts the PP material, can be applicable to the existing recovery of corroding also having high-value scattered metal powder dust, and scattered metal powder is worth the height, and the energy saving, the metal powder dust of recovery can be recycled, and is energy-concerving and environment-protective.

Drawings

FIG. 1 is an exploded view of a dust collection filter box according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a dust collecting and filtering box according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an initial installation state when the quick release bracket according to an embodiment of the present invention is installed;

fig. 4 is a schematic structural diagram of a final installation state when the quick release bracket according to the embodiment of the present invention is installed;

FIG. 5 is a schematic diagram of a filter assembly according to an embodiment of the present invention;

FIG. 6 is a partial enlarged view of FIG. 2A;

in the figure, the filter screen assembly comprises a box body 1, a box body 2, a filter screen assembly 3, a support 4, an installation frame 5, a cover plate 6, an air inlet 7, an air outlet 21, a quick-release support 22, a filter screen 23 and a filter screen support.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

As shown in fig. 1 to 6, the dust collecting and filtering box of the preferred embodiment of the present invention comprises a box body 1, thereby facilitating the installation of the filtering device and directly fixing the box body 1 on the wall surface; a containing cavity is limited in the box body 1, the box body 1 comprises a first mounting plate and a second mounting plate which are oppositely arranged, an air inlet 6 and an air outlet 7 are respectively arranged on the first mounting plate and the second mounting plate, so that a filtering device can be butted with a dust air pipe inlet on a wall surface, dust in air exhaust of a room is effectively filtered and collected, the dust can be reduced from entering an outdoor exhaust pipe by arranging the filtering device, and furthermore, the phenomenon that a dust remover at the tail end of the outdoor exhaust pipe is blocked due to the dust can be avoided; one side of box 1 is equipped with the operation mouth, is equipped with apron 5 on the operation mouth, and a plurality of filter screen subassemblies 2 can connect in holding the intracavity with inserting, through setting up the dismantlement and the installation of the filter screen subassembly 2 of operation mouth being convenient for, through set up apron 5 on the operation panel, be convenient for be airtight form in making box 1 when using, improve the filter effect. A plurality of filter screen subassemblies 2 slope distribution in turn, the one end of filter screen subassembly 2 links to each other with first mounting panel, and the other end of filter screen subassembly 2 links to each other with the second mounting panel, and each filter screen subassembly is W style of calligraphy and distributes between first mounting panel and second mounting panel, dwindles the volume of box 1 when increasing the area of contact of filter screen 22 and the gas that gets into in the filter equipment box 1 from this, practices thrift the occupation of land space. Wherein, can be according to the size of amount of wind, adjust the height of air intake 6, the height of air intake 6 can be adjusted according to actual use place and needs in 0.5 meter to 4 meters to satisfy various demands, filter equipment can install indoor simultaneously.

In the embodiment, the box body 1 is made of PP material and is corrosion-resistant, so that the phenomenon that the existing filtering device is made of iron baking paint and is corroded after being used for 3 months and is basically scrapped after 4 months is avoided, and the box body 1 is made of full PP material and can be used for at least more than 3 years; the filtering device in the prior art is made of carbon steel or stainless steel, and is easy to corrode and rust in the dust collecting process, so that the filtering device is short in service life, poor in filtering effect, difficult to process and also needs frequent maintenance; the filter device of the embodiment is environment-friendly, long in service life, not easy to damage, not easy to corrode, fast to process, convenient to maintain and capable of guaranteeing that any pollution to the environment is not caused.

Based on the technical scheme, the box body 1 is arranged, the filter screen assemblies 2 are connected into the box body 1 in a pluggable manner, an operation port is formed in one side of the box body 1, the filter screen assemblies 2 can be conveniently detached and installed through the operation port, the cover plate 5 is arranged on the operation plate, the box body 1 is conveniently closed in use, the filtering effect is improved, the problem that the filter device is troublesome to replace in the filter box in the prior art is solved, only the cover plate 5 on the side needs to be opened, the filter screen assemblies 2 can be pulled out from the operation port, the installation mode of the filter screen 22 module is special, the detachment and installation are simple and rapid, and the replacement efficiency is high; after the replacement is finished, the filter screen assembly 2 is inserted back from the operation opening, and the side door is closed after all the filter modules are replaced according to the drawer type principle, so that the filter screen assembly can be continuously used; the filter screen component 2 is convenient to replace, furthermore, the filter screen component 2 is low in cost and convenient to disassemble and assemble, the labor intensity of personnel is reduced, and the maintenance efficiency is high. The filter screen assemblies 2 are alternately distributed in an inclined mode, and each filter screen assembly is distributed in a W shape between the first mounting plate and the second mounting plate, so that the contact area of the filter screen 22 and gas entering the filtering device box body 1 is increased, the size of the box body 1 is reduced, and occupied space is saved. The filter screen assembly 2 is repeatedly arranged in a multilayer folding manner, the whole machine is small in size, the occupied space is small, the installation space is effectively saved, the filter screen assembly can be installed and used in the limited space of the installation space, the workshop space is saved, and meanwhile, the filter screen assembly is convenient to transport. Further, the filter device box 1 of this embodiment adopts the PP material, can be applicable to the existing recovery of corroding also having high-value scattered metal powder dust, and scattered metal powder is worth highly, and the energy saving, the metal powder dust of recovery can be recycled, and is energy-concerving and environment-protective.

Furthermore, the first mounting plate and the second mounting plate are respectively provided with a plurality of mounting components which are arranged in parallel, so that the filter screen components 2 can be conveniently dismounted and mounted, the mounting components extend from the operation port to the inside of the containing cavity along the length direction of the box body 1, so that the filter screen components 2 can conveniently slide in the mounting frames 4 when the filter screen components 2 are mounted and dismounted, each mounting component comprises two mounting frames 4 which are arranged in an included angle, the distance between the two mounting frames 4 is gradually increased from the first mounting plate or the second mounting plate to the inside of the containing cavity, each filter screen component 2 is mounted on the first mounting plate and the second mounting plate through the mounting frames 4, and therefore, the adjacent two filter screen components 2 are ensured to be alternately distributed in an inclined way, the whole machine is small in size, the occupied space is small, the mounting space is effectively saved, and the mounting space can be mounted and used in the space with the limited mounting space, the workshop space is saved, and the transportation is convenient. The number of the installation frames 4 can be changed according to the number of the filter screen assemblies 2 to be installed, so that different requirements can be met.

Preferably, the included angle between the axes of the two adjacent mounting frames 4 is α, and the value range of α is: alpha is more than or equal to 20 degrees and less than or equal to 70 degrees. From this guarantee that filter screen assembly 2 can carry out the volume that dwindles filter equipment when fully contacting with the wind that gets into in the box 1, with the space little, the effectual installation space that has saved can receive installation and use in the space of restriction at the installation space, saves workshop space, the transportation of being convenient for simultaneously.

Further, filter screen subassembly 2 includes filter screen 22 and quick detach support 21, filter screen 22 and quick detach support 21 are pegged graft in the installation position that the installing frame 4 on first mounting panel and second mounting panel was injectd, fix a position filter screen 22 through quick detach support 21, the installation of filter screen 22 is convenient for from this, quick detach support 21 is the W type support that the metal was made, but metal deformation and quick detach support 21 are the W type, therefore, when filter screen 22 dismantles and installs, can take place deformation when quick detach support 21 packs into the installing frame and demolishs in installing frame 4 between each free limit of quick detach support 21, with locking filter screen 22, preferably, quick detach support 21 is made for the spring steel, guaranteed that quick detach support 21 can take place deformation repeatedly in filter screen installation and dismantlement process from this, can not damage, the life-span of quick detach support 21 has been prolonged. Preferably, in this embodiment, the quick release bracket 21 is made of spring steel as an outer liner PE, so as to further ensure that the quick release bracket 21 can resist acid and alkali corrosion, and improve the service life of the quick release bracket 21, thereby improving the service life of the filtering device. In the present embodiment, the quick release bracket 21 has a diameter in the range of 2-12 mm. Therefore, the strength of the quick-release bracket 21 is ensured, the quick-release bracket 21 is convenient to produce and machine, and the quick-release bracket can be suitable for different mounting frames 4 and filter screens 22.

As shown in fig. 3 to 4, before installation, the quick release bracket 21 is in a relaxed state, each free edge of the quick release bracket 21 freely extends in a horizontal direction, when the quick release bracket 21 is installed in the installation frame 4, since the filter screen assembly 2 is installed in the installation frame 4 from the operation port, since the quick release bracket 21 is compressed in the horizontal direction, the distance between each free edge of the quick release bracket 21 is gradually reduced, so that the length of the quick release bracket 21 between the first installation plate and the second installation plate is gradually increased, and finally, the quick release bracket 21 abuts against the groove bottom of the installation frame 4, so that the filter screen 22 and the quick release bracket 21 are simultaneously located in the installation frame 4, and the filter screen assembly 2 is fixed in the installation frame 4; when filter screen assembly 2 is dismantled to needs, only need to operation mouth pull filter screen assembly 2 for interval increase between each free limit of quick detach support 21 can let the interval increase along the horizontal direction between each free limit of quick detach support 21, thereby shorten quick detach support 21 and shorten along the length distance between first mounting panel and the second mounting panel, thereby make quick detach support 21 withdraw from in following mounting frame 4, be convenient for to filter screen 22's dismantlement.

In this embodiment, the filter screen 22 is the multi-functional filter screen 22 of glass fiber material, and is flexible, but elastic deformation, can acid and alkali corrosion resistance, and the filter fineness of filter screen 22 reaches 0.1-5 mu m, and filter efficiency 90%, can effectual environmental protection, the metal dust that retrieves needs to be retrieved.

Preferably, filter screen subassembly 2 still includes filter screen support 23, filter screen support 23 is that spring steel outer lining PE makes, quick detach support 21 and filter screen support 23 set up the both sides at filter screen 22 respectively, quick detach support 21, filter screen 22 and filter screen support 23 are pegged graft in the installation position of 4 injectures of installing frame on first mounting panel and second mounting panel, filter screen support 23 supports fixed filter screen 22, can be used for fixed filter pulp, in this embodiment, filter screen support 23 constitutes for the crossing connecting rod of a plurality of crosses, each connecting rod sets up in the connecting frame, a plurality of mouth words of crossing formation of a plurality of connecting rods, filter screen support 23 can not influence the size of the volume of being filtered medium from this. In this embodiment, the diameter of the connection rod is in the range of 2-15 mm, thereby ensuring the strength of the filter net support 23 composed of the connection rod.

Optionally, the filter net 22 is further provided with filter cotton. The filter screen component 2 is internally provided with filter cotton, so that the filter cotton is convenient to replace, and corrosive gases with different particle sizes can be filtered by replacing the filter cotton with different parameters; the filter cotton can be selected flexibly, and the filter cotton with different specifications and model accuracies can be installed in different environments, so that the environmental protection requirement and the efficient dust particle recovery purpose can be met. The built-in filter pulp is changed conveniently, and box 1 need not move, only needs open the apron 5 of side, and the filter assembly who is equipped with the filter pulp can be taken out from the side, changes after the filter pulp, inserts back from the side again, can retrieve the material that needs to retrieve, and the structure that filter screen subassembly 2 was changed to this embodiment is similar to the drawer type principle, has changed all filter assembly 2 after, closes and locks the apron 5 of side, can continue to use.

In this embodiment, installing frame 4 is rectangular open slot, and the tank bottom of open slot links to each other with first mounting panel or second mounting panel, and the installing frame 4 of being convenient for from this links to each other with first mounting panel and second mounting panel, and the notch orientation of open slot holds the inside setting in chamber, the installation and the dismantlement of the filtering component of being convenient for from this.

Preferably, in the present embodiment, the air inlet 6 is square, and the air outlet 7 is circular. The air inlet 6 is square, so that the box body 1 is conveniently arranged on a window; the air outlet 7 is round, and when tail gas at the rear end needs to be selected and recycled, the air outlet 7 is very convenient to butt joint and mount with a round air pipe at the rear end; the shape of the air inlet of the existing filter box is often ignored in design, and the air inlet 6 of the embodiment is square, so that the filter box is conveniently installed on a window and fixed; the air outlet 7 is round, so that the butt joint and the installation of the air pipe of which the rear end is required to be connected are facilitated, and the problem that the existing filter box is inconvenient to install is solved.

The cover plate 5 is rotatably connected to the side wall of the operation opening through the hinge, so that the cover plate 5 can be rotatably installed on one side of the operation opening, and a locking device is arranged on one side, opposite to the hinge, of the cover plate 5, so that the cover plate 5 can be locked on one side of the operation opening in use. In this embodiment, the right side of apron 5 is installed the anticorrosive hinge of a plurality of, and the anticorrosive hasp of a plurality of is installed to the left side, and the filter screen side that will install that can be very good is fixed, and does not influence the handling capacity of rose box when normal use.

In addition, the bottom of the box body 1 is provided with a bracket 3, and the box body 1 is fixed on the top of the bracket 3. From this, can measure the body and adjust according to the size of required filterable amount of wind, the height of support 3 is arbitrary height, can adjust according to the height of actual installation demand.

The utility model discloses a working process does: the air inlet 6 is connected with a channel for discharging dust-containing gas such as a window, the air outlet 7 is connected with an air pipe, and the gas can be filtered through the filter box. When filter assembly is required to be installed, only the cover plate 5 on the side surface needs to be opened, the filter assembly provided with filter cotton is pushed into the opening groove of the installation frame 4, and the quick-release support 21 is stressed and compressed to deform, so that the filter assembly is fixed, and the cover plate 5 on the side surface is closed and locked, so that the filter assembly can be used. When the filter assembly needs to be disassembled, the price cover plate 5 is opened, the filter assembly can be pulled out from the side face, the quick-release support 21 is loosened, so that the filter assembly is conveniently pulled out from the open groove of the mounting frame 4, the filter cotton is replaced, the filter assembly is inserted back from the operation port of the side face, and after all the filter assemblies are replaced, the cover plate 5 on the side face is closed and locked, so that the filter assembly can be continuously used.

The height of the air inlet 6 is adjusted from 0.5 m to 4 m, and the corresponding filtering air quantity can be adjusted from hundreds of cubic meters per hour to tens of thousands of cubic meters per hour and can be adjusted according to applicable occasions; the closed design of the box body 1 improves the recovery rate of products, saves the production cost, creates very good economic benefits, has simple structure for replacing the filter screen 22, is convenient and quick to operate, reduces the labor intensity and also prolongs the service life of the filter box.

To sum up, the embodiment of the utility model provides a dust collecting and filtering box, its dust collecting and filtering box is through setting up box 1, a plurality of filter screen subassemblies 2 can connect in the box 1 in a pluggable way, one side of box 1 is equipped with the operation mouth, be convenient for the dismantlement and the installation of filter screen subassembly 2 through setting up the operation mouth, through setting up apron 5 on the operation panel, be convenient for make the box 1 in the airtight form when using, improve the filter effect, avoided the filter box of prior art, it is more troublesome problem to change the filter equipment, only need open the apron 5 of side, filter screen subassembly 2 can be extracted from the operation mouth, the mounting means of filter screen 22 module is special, dismantle and install simply fast, it is high to change efficiency; after the replacement is finished, the filter screen assembly 2 is inserted back from the operation opening, and the side door is closed after all the filter modules are replaced according to the drawer type principle, so that the filter screen assembly can be continuously used; the filter screen component 2 is convenient to replace, furthermore, the filter screen component 2 is low in cost and convenient to disassemble and assemble, the labor intensity of personnel is reduced, and the maintenance efficiency is high. The filter screen assemblies 2 are alternately distributed in an inclined mode, and each filter screen assembly is distributed in a W shape between the first mounting plate and the second mounting plate, so that the contact area of the filter screen 22 and gas entering the filtering device box body 1 is increased, the size of the box body 1 is reduced, and occupied space is saved. The filter screen assembly 2 is repeatedly arranged in a multilayer folding manner, the whole machine is small in size, the occupied space is small, the installation space is effectively saved, the filter screen assembly can be installed and used in the limited space of the installation space, the workshop space is saved, and meanwhile, the filter screen assembly is convenient to transport. Further, the filter device box 1 of this embodiment adopts the PP material, can be applicable to the existing recovery of corroding also having high-value scattered metal powder dust, and scattered metal powder is worth highly, and the energy saving, the metal powder dust of recovery can be recycled, and is energy-concerving and environment-protective.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those 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 particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a rose box is collected to dust, a serial communication port, includes the box, the inside of box is injectd and is had the chamber that holds, the box is including relative first mounting panel and the second mounting panel that sets up, be equipped with air intake and air outlet on first mounting panel and the second mounting panel respectively, one side of box is equipped with the operation mouth, be equipped with the apron on the operation mouth, a plurality of filter screen subassemblies can connect with inserting and pulling hold the intracavity, a plurality of the slope distributes in turn of filter screen subassembly, the one end of filter screen subassembly with first mounting panel links to each other, the other end of filter screen subassembly with the second mounting panel links to each other, each the filter screen subassembly is in be W style of calligraphy and distributes between first mounting panel and the second mounting panel.

2. The dust collecting and filtering box according to claim 1, wherein a plurality of mounting assemblies are arranged on the first mounting plate and the second mounting plate in parallel, the mounting assemblies extend from the operation port to the inside of the accommodating cavity along the length direction of the box body, each mounting assembly comprises two mounting frames arranged at an included angle, the distance between the two mounting frames gradually increases from the first mounting plate or the second mounting plate to the inside of the accommodating cavity, and each filter screen assembly is mounted on the first mounting plate and the second mounting plate through the mounting frames.

3. The dust collecting and filtering box of claim 2, wherein the included angle between the axes of the two adjacent mounting frames is α, and the value range of α is as follows: alpha is more than or equal to 20 degrees and less than or equal to 70 degrees.

4. The dust collecting and filtering box of claim 2, wherein the filter screen assembly comprises a filter screen and a quick-release bracket, the quick-release bracket is a W-shaped bracket made of metal, and the filter screen and the quick-release bracket are inserted into mounting positions defined by mounting frames on the first mounting plate and the second mounting plate.

5. The dust collecting and filtering box according to claim 4, wherein the filter screen assembly further comprises a filter screen bracket, the quick-release bracket and the filter screen bracket are respectively arranged at two sides of the filter screen, and the quick-release bracket, the filter screen and the filter screen bracket are inserted into the installation positions defined by the installation frames on the first installation plate and the second installation plate.

6. A dust collecting and filtering box according to claim 4, wherein the filter screen is further provided with filter cotton.

7. The dust collecting and filtering box of claim 2, wherein the mounting frame is a long slot, the slot bottom of the slot is connected with the first mounting plate or the second mounting plate, and the slot opening of the slot is arranged towards the inside of the accommodating cavity.

8. The dust collecting and filtering bin of claim 1, wherein the inlet vent is square in shape.

9. The dust collecting and filtering box of claim 1, wherein the cover plate is rotatably connected to the side wall of the operation opening through a hinge, and a locking device is arranged on the side of the cover plate opposite to the hinge.

10. The dust collecting and filtering box of claim 1, wherein a bracket is provided at the bottom of the box body, and the box body is fixed at the top of the bracket.