CN221107451U - Filtering component, dust removing device and road sweeper - Google Patents

Abstract

The utility model discloses a filter assembly, a dust removing device and a road sweeper, wherein the filter assembly is used for the dust removing device and comprises a filter screen main body and a filter disc, the filter screen main body is provided with an air flow channel which ventilates from bottom to top, the filter disc is connected with the filter screen main body and is provided with a filtering position and an ash pouring position, the filter disc seals the air flow channel to filter air flow in the filtering position, and the filter disc opens the air flow channel to pour dirt on the filter disc downwards in the ash pouring position. According to the filter assembly provided by the embodiment of the utility model, dirt such as dust on the filter sheet can be poured, and the filter sheet is prevented from being blocked, so that the filtering effect of the filter assembly can be improved.

Description

Filtering component, dust removing device and road sweeper

Technical Field

The utility model relates to the technical field of environmental sanitation equipment, in particular to a filtering component, a dust removing device and a road sweeper.

Background

A road sweeper is a mechanical device used to clean roads, streets, and other public areas. The road sweeper absorbs ground garbage from the suction nozzle opening through the fan, the garbage passes through the suction pipe, the fan blades are crushed and finally enter the garbage can, light and floating matters in the garbage can be brought to the filter cloth and the air outlet of the dust removing box along with the air duct, and the filter screen arranged between the dust removing box and the garbage can play a role in blocking large-area light and floating matters, such as large-sized leaves, garbage bags and the like, so that the filter cloth of the dust removing box is prevented from being blocked, and the stability of a pneumatic system of the whole vehicle is maintained.

In the related art, light and bay objects can partially pass through meshes to be stuck on filter cloth under the action of wind power, can fall on the upper surface of a filter screen after the dust removal operation by vibration of the filter cloth or have partial garbage to pass through the filter screen, and deposit on the upper surface of the filter screen after dust shaking of the filter cloth and stop of a fan, so that the filter screen is inconvenient to clean and blocked.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, an object of the present utility model is to provide a filter assembly capable of pouring dirt such as dust on a filter sheet, avoiding the filter sheet from being blocked, and improving the filtering effect of the filter assembly.

Another object of the present utility model is to propose a dust-removing device comprising a filter assembly as described above.

Still another object of the present utility model is to provide a road sweeper comprising the aforementioned dust removing device.

According to the filter assembly in the embodiment of the utility model, the filter assembly is used for a dust removing device and comprises a filter screen main body and a filter disc, wherein the filter screen main body is provided with an air flow channel which ventilates from bottom to top, the filter disc is connected with the filter screen main body and is provided with a filtering position and an ash pouring position, the filter disc seals the air flow channel to filter air flow, and the filter disc is opened in the ash pouring position to pour dirt on the filter disc downwards.

According to the filter assembly provided by the embodiment of the utility model, dirt such as dust on the filter sheet can be poured, and the filter sheet is prevented from being blocked, so that the filtering effect of the filter assembly can be improved.

In addition, the filter assembly according to the above embodiment of the present utility model may further have the following additional technical features:

In some embodiments, the filter sheet has a fixed end and a free end, the fixed end being hinged to the filter screen body, the filter sheet being inclined downwardly from the fixed end to the free end in the ash pouring position.

In some embodiments, the filter assembly further comprises a first elastic member connecting the filter screen body and the filter sheet, respectively, and having an elastic force driving the filter sheet to move toward the filtering position.

In some embodiments, the filter assembly further includes a second elastic member, a fixing structure is disposed on the filter screen main body, the filter sheet is rotatably connected with a latch hook, the latch hook hooks the fixing structure and can be separated from the fixing structure, and the second elastic member has an elastic force for driving the latch hook to hook the fixing structure.

In some embodiments, the screen body includes a first sidewall, a second sidewall, and a third sidewall, the first sidewall, the second sidewall, and the third sidewall surrounding the airflow channel, and the first sidewall, the second sidewall, and the third sidewall each having a screen.

In some embodiments, a baffle is disposed on one side of the screen body, and the baffle extends in an up-down direction.

In some embodiments, the baffle includes a first portion and a second portion, the first portion is connected to the second portion and is lower than the second portion, the first portion has a first flow gap, the second portion has a second flow gap, and a flow area of the first flow gap is not less than a flow area of the second flow gap.

In some embodiments, at least one of the first, second, and third sidewalls is sloped in a top-down direction into the airflow channel.

In some embodiments, the screen body is provided with a stop configured to stop the screen body.

In some embodiments, the filter screen body is provided with hooks configured for disassembly and assembly of the filter screen body.

In some embodiments, a limiting portion is provided on the filter sheet, the limiting portion configured to limit the filter sheet to the filtering position.

According to the dust removing device in the embodiment of the utility model, the dust removing device comprises a collecting container, the filtering component and the dust removing component, wherein the top of the collecting container is provided with an opening, the filtering component is arranged in the collecting container and is suitable for separating the opening to form an air inlet and an air outlet, the air inlet is communicated with the inlet of the air flow channel, the air outlet is communicated with the outlet of the air flow channel, the dust removing component comprises a dust removing box and a driving piece, the dust removing box covers the opening and is provided with a filtering structure, and the driving piece is arranged in the dust removing box and is configured to drive the air flow of the air flow channel to flow to the filtering structure.

According to the dust removing device provided by the embodiment of the utility model, the dust removing pretreatment can be carried out on the air flow by applying the filtering component so as to improve the dust removing efficiency of the dust removing component, and dirt on the filtering component can be subjected to dumping treatment, so that the secondary operation is convenient.

According to the road sweeper in the embodiment of the utility model, the road sweeper comprises a machine body and the dust removing device, wherein the dust removing device is arranged on the machine body.

According to the road sweeper provided by the embodiment of the utility model, the dust removal device can be used for carrying out multistage filtration on the air flow, so that the operation efficiency of the road sweeper is greatly improved.

Drawings

FIG. 1 is a schematic illustration of a filter assembly in some embodiments of the utility model.

Fig. 2 is a schematic view of a filter assembly in accordance with further embodiments of the utility model.

Fig. 3 is a schematic view of a filter assembly, collection container, and lift platform (filter position) in some embodiments of the utility model.

Fig. 4 is a schematic view of a filter assembly, collection vessel, and lifting platform (ash pouring position) in some embodiments of the utility model.

Fig. 5 is a schematic view of a dust removing device according to some embodiments of the present utility model.

Fig. 6 is a schematic diagram of a road sweeper in some embodiments of the present utility model.

Reference numerals:

The dust removing device 100, the filter assembly 10, the filter screen main body 11, the airflow channel 111, the fixing structure 112, the first side wall 113, the second side wall 114, the third side wall 115, the filter sheet 12, the fixing end 121, the free end 122, the lock hook 123, the first elastic member 13, the second elastic member 14, the guide plate 15, the first overflow gap 151, the second overflow gap 152, the limiting member 16, the hook 17, the limiting portion 18, the handle 19, the collecting container 20, the opening 21, the air inlet 211, the air outlet 212, the dust removing assembly 30, the dust removing box 31, the driving member 32, the filtering structure 33, the lifting platform 34 and the machine body 200.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The utility model provides a filter assembly 10, a dust removing device 100 and a road sweeper 1000, wherein the filter assembly 10 can pour dirt such as dust on a filter disc 12, and avoid the filter disc 12 from being blocked, so that the filtering effect of the filter assembly 10 can be improved.

Referring to fig. 1, 2 and 5, according to a filter assembly 10 in an embodiment of the present utility model, the filter assembly 10 may be used for a dust removing device 100, and the filter assembly 10 includes a filter screen body 11 and a filter sheet 12.

Wherein the filter screen body 11 has an air flow channel 111 that ventilates from bottom to top, in other words, an inlet of the air flow channel 111 is downward and an outlet of the air flow channel 111 is upward; the filter sheet 12 is connected to the filter screen body 11 and has a filtering position in which the filter sheet 12 closes the air flow passage 111 to filter the air flow, and an ash pouring position in which the filter sheet 12 opens the air flow passage 111 to pour dirt on the filter sheet 12 downward; so arranged, the filter sheet 12 is switchable between a filtering position and an ash pouring position to pour dust from the filter sheet 12 and enhance the filtering effect of the filter assembly 10.

Specifically, the dust removing device 100 may include a dust removing assembly 30, and the dust removing assembly 30 may remove dust and filter air flow, where the filter assembly 10 may perform an air flow pretreatment function, that is, the air flow first passes through the filter assembly 10 and then enters the dust removing assembly 30 to perform dust removing treatment, so that dirt such as light drift (e.g. large leaves and garbage bags) with a large area may be prevented from entering the dust removing assembly 30, and dust removing efficiency of the dust removing assembly 30 is affected. During pretreatment operation, air flow can pass through the air flow channel 111 of the filter screen main body 11 from bottom to top, at this moment, the filter disc 12 is at a filtering position, the filter disc 12 seals the air flow channel 111, so that large-area light and wafts entrained in the air flow are intercepted and filtered by the filter disc 12, but in the process, as the filtering effect of the filter disc 12 is limited, part of dirt entrained in the air flow can pass through the filter disc 12 and is deposited on the upper surface of the filter disc 12 after the operation is finished, at this moment, the filter disc 12 can be switched to an ash pouring position, so that dirt deposited on the upper surface of the filter disc 12 can be poured downwards, the treatment of the dirt deposited on the filter disc 12 is completed, and the pretreatment operation of the filter assembly 10 is facilitated.

In addition, the dust removing assembly 30 may be provided with a filter structure 33, the filter structure 33 may be a filter bag, a filter cartridge, etc., and as the dust removing device 100 is operated for a long time, the filter structure 33 is stained with dirt such as dust, and dust needs to be removed from the filter structure 33, and since the filter assembly 10 is located upstream of the airflow path of the dust removing assembly 30, part of the dirt generated by dust removal will be deposited on the filter sheet 12, and at this time, the filter sheet 12 may be switched to the dust pouring position, so that the dirt deposited on the upper surface of the filter sheet 12 is poured downward, thereby facilitating the re-pretreatment operation of the filter assembly 10.

Therefore, according to the filter assembly 10 of the embodiment of the present utility model, dirt such as dust on the filter sheet 12 can be poured to avoid clogging of the filter sheet 12, so that the filtering effect of the filter assembly 10 can be improved.

It should be noted that, there are various connection modes between the filter sheet 12 and the filter screen main body 11; for example, the filter 12 may be disposed at an inlet of the airflow channel 111, and the filter 12 is slidably connected to the filter screen body 11, so that the filter 12 slidably closes the airflow channel 111, and slidably opens the airflow channel 111, and the sliding track may have an included angle with the up-down direction, so as to implement downward dumping of dirt, and avoid blocking the filter 12, thereby improving the filtering effect of the filter assembly 10.

As another example, referring to fig. 1, in some embodiments of the present utility model, the filter sheet 12 has a fixed end 121 and a free end 122, the fixed end 121 is hinged to the filter screen body 11, and in the ash pouring position, the filter sheet 12 is inclined downward from the fixed end 121 to the free end 122 to achieve the dumping of the dirt, and the filter sheet 12 is prevented from being blocked, so that the filtering effect of the filter assembly 10 can be improved.

Specifically, the filter 12 may have opposite ends, one end may be a fixed end 121, the other end may be a free end 122, and the free end 122 may rotate relative to the fixed end 121 to switch the filter 12 between a filtering position and an ash pouring position, wherein when moving toward the filtering position, the free end 122 moves upward relative to the fixed end 121, so that the filter 12 may close the airflow channel 111, when moving toward the ash pouring position, the free end 122 may move downward relative to the fixed end 121, so that the filter 12 may open the airflow channel 111, and when in the ash pouring position, the filter 12 is inclined downward from the fixed end 121 to the free end 122, so that dirt deposited on the upper surface of the filter 12 may be poured downward under the action of gravity, thereby improving the filtering effect of the filter assembly 10; in short, the filter 12 can be flipped up to a filtering position and flipped down to a ash pouring position.

Next, the following embodiments are provided in the present utility model with respect to the manner in which the filter sheet 12 is switched between the filtering position and the ash pouring position, and this, of course, should not be construed as limiting the scope of the present utility model.

Example 1

Referring to fig. 1, the filter assembly 10 further includes a first elastic member 13, where the first elastic member 13 is connected to the filter screen main body 11 and the filter sheet 12, respectively, and has an elastic force for driving the filter sheet 12 to move toward the filtering position, so that the filter sheet 12 can be switched between the filtering position and the ash pouring position to implement dirt pouring on the filter sheet 12.

Specifically, during the pretreatment operation, the first elastic member 13 may apply an elastic force to the filter 12, so that the filter 12 may move toward the filtering position to close the airflow channel 111, so as to facilitate filtering the airflow passing through the airflow channel 111, and in combination with the foregoing embodiment, the filter 12 may be turned upward to the filtering position and turned downward to the ash pouring position, that is, when the airflow passes through the airflow channel 111 from bottom to top, the filter 12 may be moved toward the filtering position by the pushing force of the airflow, so as to further improve the sealing effect of the filter 12 on the airflow channel 111, thereby improving the effect of pretreatment on the airflow.

Subsequently, after the dirt deposited on the filter sheet 12 exceeds a predetermined value, the gravity of the dirt can overcome the elastic force of the first elastic member 13 and the pushing force of the air flow, so that the filter sheet 12 is turned down to move toward the dust pouring position, thereby achieving dirt pouring. Or after the pretreatment operation is stopped, the gravity of the dirt overcomes the elastic force of the first elastic piece 13, so that the filter piece 12 is turned downwards to move towards the ash pouring position, and the dirt pouring is realized. Then, after the dirt on the filter 12 is poured, the first elastic member 13 can drive the filter 12 to turn upwards to the filtering position, so that the pretreatment can be performed again.

In addition, in some specific examples, the filter screen body 11 may be provided with first and second opposite cantilevers, the fixed end 121 of the filter sheet 12 may be hinged to the first and second cantilevers, respectively, and the first elastic member 13 may include two torsion springs, one torsion spring being connected to the fixed end 121 of the filter sheet 12 and the first cantilever, respectively, and the other torsion spring being connected to the fixed end 121 of the filter sheet 12 and the second cantilever, respectively, such that the filter sheet 12 may be reset to the filtering position after the end of the ash pouring by the driving of the elastic force of the torsion springs. More specifically, the bottom of the filter 12 is provided with a first rotating shaft and a second rotating shaft, the axes of the first rotating shaft and the second rotating shaft are coincident, that is, the first rotating shaft and the second rotating shaft rotate around the same rotation center, one end of the first rotating shaft is fixedly connected with the bottom of the filter 12, the other end of the first rotating shaft is rotatably connected with the first cantilever, one end of the second rotating shaft is fixedly connected with the bottom of the filter 12, the other end of the second rotating shaft is rotatably connected with the second cantilever, one torsion spring can be arranged on the first rotating shaft and can be respectively fixedly connected with the bottom of the filter 12 and the first cantilever, the other torsion spring can be arranged on the second rotating shaft, and the torsion spring can be respectively fixedly connected with the bottom of the filter 12 and the second cantilever, so that the filter 12 can overturn around the rotation center, and the two torsion springs can respectively apply elastic force to the filter 12 to drive the filter 12 to reset to the filtering position.

Example 2

Referring to fig. 2, the filter assembly 10 further includes a second elastic member 14, a fixing structure 112 is disposed on the filter screen main body 11, the filter sheet 12 is rotatably connected with a latch hook 123, the latch hook 123 hooks the fixing structure 112 and can be separated from the fixing structure, and the second elastic member 14 has an elastic force for driving the latch hook 123 to hook the fixing structure 112, so that the filter sheet 12 can be switched between a filtering position and a dust pouring position, and dirt on the filter sheet 12 can be poured.

Specifically, during the pretreatment operation, the second elastic member 14 may apply an elastic force to the latch hook 123, so that the latch hook 123 hooks the fixing structure 112, i.e. the filter 12 is kept at the filtering position, so as to ensure the normal operation of the pretreatment operation. After the pretreatment operation is finished, the filter 12 can be subjected to ash pouring, and at the moment, the lock hook 123 can be manually driven to overcome the elasticity of the second elastic piece 14, so that the drive lock hook 123 is separated from the fixed structure 112, and the filter 12 can be turned downwards to an ash pouring position under the gravity of dirt, so that the dirt pouring is realized; after the ash is poured, the filter disc 12 can be manually driven to be turned upwards to the filtering position, and then the locking hook 123 can hook the fixing structure 112 under the action of the second elastic piece 14 to relocate the filter disc 12 to the filtering position, so that the filter disc 12 is conveniently pretreated again.

More specifically, the filter 12 is provided with an extension portion extending toward the fixing structure 112, the extension portion is rotatably connected with the latch hook 123, the second elastic member 14 may include a torsion spring, one end of the torsion spring is fixedly connected with the extension portion, the other end of the torsion spring is fixedly connected with the latch hook 123, and the torsion spring may have an elastic force for driving the latch hook 123 to hook the fixing structure 112, so that the latch hook 123 may rotate relative to the extension portion to disengage from the fixing structure 112 or hook the fixing structure 112, thereby facilitating the switch of the filter 12 between the filtering position and the ash pouring position.

Referring to fig. 1 to 4, in some embodiments of the present utility model, the screen body 11 includes a first sidewall 113, a second sidewall 114, and a third sidewall 115, the first sidewall 113, the second sidewall 114, and the third sidewall 115 surrounding the airflow channel 111, and each of the first sidewall 113, the second sidewall 114, and the third sidewall 115 has a screen; specifically, during the pretreatment, the air flows can enter the air flow channel 111 from the filter screens of the first side wall 113, the second side wall 114 and the third side wall 115 respectively, so that the air flow area of the filter screen main body 11 can be increased, and the filter assembly 10 is prevented from being blocked.

Referring to fig. 1 and 2, in some embodiments of the present utility model, a baffle 15 is disposed at one side of the filter screen body 11, and the baffle 15 extends in an up-down direction, so that the air flow can be guided to an inlet of the air flow channel 111, thereby facilitating the air flow passing through the air flow channel 111 and realizing pretreatment of the air flow.

Alternatively, the baffle 15 may be made of rubber to reduce the weight of the screen body 11, and due to the high surface roughness of the rubber, the kinetic energy of the garbage is reduced after friction with the garbage, so that the garbage is deposited at the bottom of the collection container 20.

In detail, the dust removing device 100 may include a collecting container 20, the top of the collecting container 20 has an opening 21, the filter assembly 10 may be disposed in the collecting container 20, and the opening 21 of the collecting container 20 is divided into two parts by the baffle 15, one part may serve as an air inlet 211 of the collecting container 20, the other part may serve as an air outlet 212 of the collecting container 20, and the filter assembly 10 may be located at the air outlet 212, and the dust removing assembly 30 may be covered on the opening 21 of the collecting container 20 to facilitate air flow into the dust removing assembly 30; wherein the air flow can enter the collection container 20 from the air inlet 211 and is guided to flow towards the bottom of the collection container 20 by the guide plate 15, so that larger dirt entrained by the air flow is deposited at the bottom of the collection container 20, and then the air flow can flow towards the air outlet 212 and flow through the air flow channel 111 of the filter assembly 10, and the air flow is pretreated by the filter sheet 12 of the filter assembly 10.

Further, referring to fig. 1, in some embodiments of the present utility model, the baffle 15 includes a first portion and a second portion, the first portion is connected to the second portion and is lower than the second portion, the first portion has a first through-flow gap 151, the second portion has a second through-flow gap 152, and a flow area of the first through-flow gap 151 is not smaller than a flow area of the second through-flow gap 152; by the arrangement, large dirt entrained in the air flow can be filtered, the air flow resistance in the dust removing device 100 is reduced, and the dust removing operation efficiency is improved.

Specifically, during operation of the dust removing device 100, air flow may enter the collection container 20 from the air inlet 211 and may pass through the flow gap of the baffle 15; in this process, the large garbage entrained in the air flow cannot pass through the overflow gap, and under the guidance of the guide plate 15, the large garbage can be deposited at the bottom of the collecting container 20, so that the large garbage is prevented from blocking the filter sheet 12 on the filter assembly 10, and the filtering effect of the filter assembly 10 is prevented from being affected.

In addition, the deflector comprises a first portion and a second portion, the first portion is connected with the second portion and is lower than the second portion, the first portion has a first through-flow gap 151, the second portion has a second through-flow gap 152, and the flow area of the first through-flow gap 151 is not smaller than the flow area of the second through-flow gap 152, in other words, when the air flow passes through the deflector 15, in order to avoid the attachment of the garbage carried by the air flow to the filter assembly 10, the second through-flow gap 152 is provided to block the passage of the bulk garbage, and in order to avoid the unsmooth flow of the air flow, the first through-flow gap 151 is provided to facilitate the air flow passing through the deflector 15, so that the operation of the dust removing device 100 can be better realized.

Furthermore, in connection with the previous embodiment, the top of the collecting container 20 has an opening 21, and the filter assembly 10 is located at the opening 21, so that in the arrangement of the baffle 15, the first portion is located close to the filter assembly 10 relative to the second portion, i.e. the first portion is located lower than the second portion, such that the first through-flow gap 151 is located lower than the second through-flow gap 152, to deposit at the bottom of the collecting container 20 under the filtering and guiding action of the baffle 15, and to avoid the air flow obstruction.

In some embodiments, the baffle 15 is a plate body, and the upper portion of the baffle 15 has a small overflow gap and the lower portion has a large overflow gap, so that the baffle 15 may be divided into an upper portion with a first filter gap 151 and a lower portion with a second filter gap 152, so as to avoid that massive garbage is directly attached to the filter assembly 10, thereby affecting the filtering effect of the filter assembly 10.

In addition, in some specific examples, the baffle 15 includes a first plate body and a second plate body, the first plate body may have a plurality of first gaps disposed at intervals, the second plate body may have a plurality of second gaps disposed at intervals, both the first gaps and the second gaps extend downward, and in a downward direction, the second gaps have a smaller size than the first gaps, so that the second plate body may be stacked on an upper half portion of the first plate body, and thus, the first gaps of a lower half portion of the first plate body form the aforementioned first through-flow gaps 151, and in addition, in a stacking direction, the plurality of first gaps of the upper half portion of the first plate body and the plurality of second gaps of the second plate body are disposed at a staggered position, forming the aforementioned second through-flow gaps 152, such that a flow area of the first through-flow gaps 151 is not smaller than the second through-flow gaps 152.

Referring to fig. 1 to 5, in some embodiments of the present utility model, at least one of the first, second and third sidewalls 113, 114 and 115 is inclined toward the inside of the air flow channel 111 in a top-down direction, so that dirt is conveniently deposited on the filter sheet 12, and a dirt pouring effect is improved.

Specifically, when the filter 12 is at the filtering position, a part of dirt generated by the dust removal of the dust removing component 30 may fall into the airflow channel 111, or when the airflow passes through the airflow channel 111, a part of dirt may be entrained to pass through the filter 12 and fall back into the airflow channel 111, at this time, at least one of the first side wall 113, the second side wall 114 and the second side wall 114 may be inclined towards the airflow channel 111 in a top-down direction, and because the filter 12 closes the airflow channel 111, the dirt may be concentrated towards the filter 12, so as to facilitate the dirt pouring of the filter 12, and improve the pouring efficiency.

Referring to fig. 1 and 2, in some embodiments of the present utility model, the filter screen body 11 is provided with a limiting member 16, and the limiting member 16 is configured to limit the filter screen body 11, so as to ensure that the pretreatment of the filter assembly 10 is performed normally.

Specifically, the collecting container 20 is provided with a limiting groove, and when the filter assembly 10 is assembled on the collecting container 20, the limiting piece 16 on the filter screen main body 11 can be embedded into the limiting groove in the collecting container 20, so that the filter screen main body 11 is positioned on the collecting container 20 to ensure that the pretreatment of the filter assembly 10 is performed normally.

In addition, in some specific examples, the opening 21 is provided at the top of the collection container 20, the limiting groove and the limiting member 16 may each extend in the up-down direction, the filter assembly 10 may pass through the opening 21 and be assembled on the collection container 20 from top to bottom, and the limiting member 16 may be embedded in the limiting groove in the up-down direction, so as to achieve the assembly of the filter assembly 10 and the collection container 20. More specifically, the limiting member 16 may include a third cantilever and a fourth cantilever disposed opposite to each other on the filter screen main body 11, and a first folded plate and a second folded plate are connected to opposite inner walls of the collecting container 20, respectively, where the first folded plate cooperates with the inner wall of the collecting container 20 to form a first limiting slot, and the second folded plate cooperates with the inner wall of the collecting container 20 to form a second limiting slot; during assembly, the third cantilever is embedded into the first limiting groove, and the fourth cantilever is embedded into the second limiting groove, so that limiting of the filter assembly 10 is realized.

Referring to fig. 1-4, in some embodiments of the present utility model, the screen body 11 is provided with hooks 17, the hooks 17 being configured for use in removing the screen body 11; specifically, a positioning structure corresponding to the hook 17 is provided on the collecting container 20, and when the filter assembly 10 is assembled, the hook 17 on the filter screen main body 11 is hooked on the positioning structure of the collecting container 20 to realize assembly.

In addition, in combination with the foregoing embodiment, the top of the collecting container 20 is provided with the opening 21, the hook 17 of the filter screen main body 11 may be hooked on the periphery of the opening 21, so as to implement the assembly of the filter assembly 10, and when the dust removing assembly 30 covers the opening 21, the hook 17 on the filter screen assembly may be press-fitted by the fitting installation of the dust removing assembly 30 and the collecting container 20, so that the filter screen assembly may be stably installed on the collecting container 20, and the operation of the dust removing device 100 is convenient.

Wherein in some specific examples, the filter screen body 11 may be provided with a handle 19, and the operator may detach the filter screen body 11 from the collecting container 20 through the handle 19, so that the hook 17 on the filter screen body 11 may be hooked on the collecting container 20 or detached from the collecting container 20.

Referring to fig. 1, 3 and 4, in some embodiments of the present utility model, the filter 12 is provided with a limiting portion 18, and the limiting portion 18 is configured to limit the filter 12 to a filtering position. Specifically, be equipped with limit structure on the dust removal subassembly 30, limit structure corresponds with spacing portion 18, when assembling dust collector 100, can install filter assembly 10 on collecting container 20 through couple 17 earlier, and the spacing piece 16 on the filter assembly 10 can imbed the spacing groove on the collecting container 20, realize filter assembly 10's location, then dust removal subassembly 30 can cover and establish the opening 21 at collecting container 20, and compress tightly couple 17, further fixed filter assembly 10, wherein, the limit structure on the dust removal subassembly 30 this moment can the butt on the spacing portion 18 of filter plate 12, fix a position filter plate 12 in filtering position, in order to guarantee dust collector 100's normal clear.

In some specific examples, due to the problem of assembly errors, the limiting portion 18 and the limiting structure may be respectively provided with an elastic material, so that the assembly errors are eliminated by the characteristics of the elastic material when the limiting portion 18 and the limiting structure abut. In addition, the limiting portion 18 can be used as an operation portion for facilitating the holding of an operator, in other words, when the filter sheet 12 needs to be manually switched from the filtering position to the ash pouring position, the operator can hold the limiting portion 18 for operation, and convenience is improved.

Additionally, in some specific examples, after assembly is complete, the spacing structure may have a predetermined spacing from the spacing portion 18 to enable tipping with less dirt on the filter 12; specifically, during pretreatment, the filter sheet 12 can be maintained in the filtering position by the air flow and the first elastic member 13, and dirt adheres to the filter sheet 12 over time; after stopping the operation, the gravity of the dirt can overcome the elastic force of the first elastic element 13 and turn downwards, and at this time, the limiting structure can be abutted with the limiting part 18, so that the filter sheet 12 is positioned between the filtering position and the ash pouring position, and the filter sheet 12 can open a part of the airflow channel 111, so that the dirt can be conveniently poured into the collecting container 20.

Moreover, in some specific examples, a sealing ring may be disposed at the periphery of the opening 21 of the collecting container 20, so that when the dust removing assembly 30 is covered on the opening 21 of the collecting container 20, the sealing performance of the dust removing device 100 may be improved, and the air tightness of the dust removing device 100 is prevented from being insufficient, which affects the normal operation of the dust removing device 100.

Referring to fig. 5, according to the dust removing apparatus 100 in the embodiment of the present utility model, the dust removing apparatus 100 includes the collection container 20, the filter assembly 10 and the dust removing assembly 30 in the above-described embodiments.

The top of the collecting container 20 has an opening 21, the filter assembly 10 is disposed in the collecting container 20 and is suitable for separating the opening 21 to form an air inlet 211 and an air outlet 212, the air inlet 211 is communicated with the inlet of the air flow channel 111, the air outlet 212 is communicated with the outlet of the air flow channel 111, the dust removing assembly 30 comprises a dust removing box 31 and a driving member 32, the dust removing box 31 is covered on the opening 21 and has a filter structure 33, the driving member 32 is disposed in the dust removing box 31 and is configured to drive the air flow of the air flow channel 111 to flow to the filter structure 33, and the dust removing pretreatment can be performed on the air flow by applying the filter assembly 10, so that the dust removing efficiency of the dust removing assembly 30 is improved, and dirt on the filter assembly 10 can be poured for convenient operation again.

Specifically, the top of the collecting container 20 is provided with an opening 21, and when the filter assembly 10 is assembled, the filter assembly 10 can be assembled on the collecting container 20, wherein the filter assembly 10 can be hung on the periphery of the opening 21 through the hooks 17, the limiting piece 16 of the filter assembly 10 can be embedded into the limiting groove of the collecting container 20, and then the dust removing box 31 can be covered at the opening 21 of the collecting container 20 to tightly press the hooks 17, so that the assembly stability of the filter assembly 10 is improved. Wherein, the dust removing assembly 30 may include a dust removing box 31 and a driving part 32, the dust removing box 31 has a first channel for air inlet and a second channel for air outlet, the first channel is communicated with the air inlet 211 of the collecting container 20, and the second channel is communicated with the air outlet 212 of the collecting container 20; in addition, a filter structure 33 is disposed in the second channel of the dust collection box 31, and the filter structure 33 may be a filter bag, a filter cartridge, or the like.

In addition, the filter screen body 11 is provided with a baffle 15, the baffle 15 can divide the opening 21 of the collection container 20 into an air inlet 211 and an air outlet 212, and the baffle 15 extends along the up-down direction, can guide the air flow passing through the air inlet 211 to the bottom of the collection container 20, and after the air flow direction is changed at the bottom, the air flow passes through the air flow channel 111 from bottom to top, and finally leaves the collection container 20 through the air outlet 212.

Further, the flow guide plate 15 may have an overflow gap, and the channel flow guide gap may intercept the bulk garbage in the airflow, so that the bulk garbage is deposited at the bottom of the collection container 20, and the bulk garbage is prevented from adhering to the filter assembly 10 to cause blockage. In addition, the flow gap further includes a first flow gap 151 and a second flow gap 152, in the up-down direction, the first flow gap 151 is far away from the filter screen main body 11 compared with the second flow gap 152, and the flow area of the first flow gap 151 is not smaller than the flow area of the second flow gap 152, in other words, when the air flow passes through the deflector 15, in order to avoid the garbage entrained by the air flow from adhering to the filter assembly 10, the second flow gap 152 is provided to block the passage of the bulk garbage, and is deposited at the bottom of the collection container 20 under the guidance of the deflector 15, and meanwhile, in order to avoid the unsmooth flow of the air flow, the first flow gap 151 is provided to facilitate the air flow to pass through the deflector 15, thereby better realizing the operation of the dust removing device 100.

Secondly, the dust removing assembly 30 may further be provided with a lifting mechanism, the lifting mechanism comprises an air cylinder and a lifting platform 34, the air cylinder is respectively in transmission connection with the dust removing box 31 and the lifting platform 34 to drive the lifting platform 34 to lift up and down, the collecting container 20 may be placed on the lifting platform 34, and then the air cylinder may lift the collecting container 20, so that the collecting container 20 may be assembled with the dust removing box 31. When the collection container 20 exceeds a predetermined capacity, the air cylinder can drive the lifting platform 34 to descend, so that the operator can conveniently dump dirt and the like in the collection container 20.

In operation of the dust removing apparatus 100, the driving member 32 may drive the airflow of the airflow channel 111 to flow toward the filtering structure 33, in other words, the airflow may enter from the first channel and sequentially pass through the air inlet 211 of the collecting container 20, the inlet of the airflow channel 111, the outlet of the airflow channel 111, the air outlet 212 of the collecting container 20 and the second channel, wherein the airflow may be pretreated by the filtering assembly 10, i.e. the larger area of garbage is pre-intercepted and filtered, and then the airflow is reprocessed by the filtering structure 33 in the dust removing box 31, so as to finally realize the discharge of the dust-free airflow.

When the filter assembly 10 is pretreated, the air flow can pass through the air flow channel 111 from bottom to top to push the filter sheet 12, and the filter sheet 12 can maintain the filter sheet 12 in the filtering position under the action of the first elastic piece 13, and the filter sheet 12 can perform the prefilter treatment on the air flow to ensure that the garbage with larger area is deposited at the bottom of the collecting container 20; however, due to the limited filtering of the filter sheet 12, part of the dirt can pass through the filter sheet 12 and fall back and adhere to the filter sheet 12 after the operation is finished, and at this time, the dirt can overcome the elastic force of the first elastic member 13, so that the filter sheet 12 is driven to be switched from the filtering position to the ash pouring position, and the dirt on the filter sheet 12 can be poured down to the bottom of the collecting container 20. And after the pouring is completed, the first elastic member 13 can drive the filter disc 12 to return to the filtering position.

The filter main body 11 may include a first side wall 113, a second side wall 114 and a third side wall 115, where the first side wall 113, the second side wall 114 and the third side wall 115 surround the airflow channel 111 to further increase the filtering area of the filtering assembly 10 and reduce the airflow resistance of the dust removing device 100, and the first side wall 113, the second side wall 114 and the third side wall 115 may have a filter screen, and when the airflow passes through the airflow channel 111, the airflow may enter the airflow channel 111 from the filter screens of the first side wall 113, the second side wall 114 and the third side wall 115, respectively.

Referring to fig. 6, a road sweeper 1000 according to an embodiment of the present utility model, the road sweeper 1000 includes a machine body 200 and the dust removing device 100 as described above.

The dust collector 100 is disposed on the machine body 200, and the dust collector 100 can be used to filter the air flow in multiple stages, so as to greatly improve the working efficiency of the road sweeper 1000.

In detail, the road sweeper 1000 can clean a road, and during the cleaning process, dust and the like on the road can be sucked into the dust removing device 100; wherein the dust removing device 100 has multi-stage filtration; specifically, the dust removing device 100 may have a filter assembly 10 therein, the filter assembly 10 is provided with a baffle 15, the baffle 15 may guide airflow into the airflow channel 111, and the baffle 15 has an overflow gap, which is suitable for the airflow channel 111, and intercepts and deposits bulk garbage to the bottom of the collecting container 20, i.e. primary dust removing of the dust removing device 100; the airflow may then pass through the airflow channel 111, and the filter sheet 12 may close the airflow channel 111 and filter the airflow, thereby intercepting and filtering the garbage with a larger area again and depositing the garbage at the bottom of the collection container 20, i.e., secondary filtering of the dust removing device 100; finally, the air flow can enter the dust removing box 31, and a filter structure 33 such as a filter bag is arranged in the dust removing box 31, and the filter structure 33 can filter the air flow and then discharge the air into the air, namely three-stage filtration of the dust removing device 100.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A filter assembly for dust collector, characterized in that, filter assembly includes filter screen main part (11) and filter tip (12), filter screen main part (11) have air current passageway (111) that ventilates from bottom to top, filter tip (12) with filter screen main part (11) link to each other to have filtering position and ash pouring position in filtering position, filter tip (12) seal air current passageway (111) are in order to filter the air current, ash pouring position, filter tip (12) are opened air current passageway (111) are in order to empty downwards the filth on filter tip (12).

2. The filter assembly according to claim 1, wherein the filter sheet (12) has a fixed end (121) and a free end (122), the fixed end (121) being hinged to the filter screen body (11), the filter sheet (12) being inclined downwards from the fixed end (121) to the free end (122) in the ash pouring position.

3. The filter assembly according to claim 1, further comprising a first elastic member (13), the first elastic member (13) connecting the filter screen body (11) and the filter sheet (12) respectively and having an elastic force driving the filter sheet (12) to move toward the filtering position;

And/or, still include second elastic component (14), be equipped with fixed knot structure (112) on filter screen main part (11), filter screen (12) rotationally are connected with latch hook (123), latch hook (123) hook fixed knot structure (112) to can break away from, second elastic component (14) have the drive latch hook (123) hook fixed knot structure (112) elastic force.

4. The filter assembly of claim 1, wherein the screen body (11) includes a first side wall (113), a second side wall (114), and a third side wall (115), the first side wall (113), the second side wall (114), and the third side wall (115) surrounding the airflow channel (111), and the first side wall (113), the second side wall (114), and the third side wall (115) each have a screen.

5. A filter assembly according to claim 1, wherein a baffle (15) is provided on one side of the filter screen body (11), the baffle (15) extending in an up-down direction.

6. The filter assembly of claim 5, wherein the baffle (15) comprises a first portion and a second portion, the first portion being connected to and lower than the second portion, the first portion having a first flow gap (151), the second portion having a second flow gap (152), and a flow area of the first flow gap (151) being no less than a flow area of the second flow gap (152).

7. The filter assembly of claim 4, wherein at least one of the first side wall (113), the second side wall (114), and the third side wall (115) is inclined in a top-down direction into the airflow channel (111).

8. The filter assembly according to any one of claims 1-7, wherein the screen body (11) is provided with a stop (16), the stop (16) being configured for stopping the screen body (11);

And/or, the filter screen main body (11) is provided with a hook (17), and the hook (17) is configured to be used for disassembling and assembling the filter screen main body (11);

And/or, a limiting part (18) is arranged on the filter piece (12), and the limiting part (18) is configured to limit the filter piece (12) to the filtering position.

9. A dust removing apparatus, comprising:

-a collection container (20), the top of the collection container (20) having an opening (21);

The filter assembly according to any one of claims 1-8, being provided to the collection container (20) and being adapted to separate the opening (21) to form an air inlet (211) and an air outlet (212), the air inlet (211) being in communication with the inlet of the air flow channel (111) and the air outlet (212) being in communication with the outlet of the air flow channel (111);

The dust removal assembly (30), dust removal assembly (30) include dust removal case (31) and driving piece (32), dust removal case (31) cover is located opening (21), and have filtration (33), driving piece (32) are located in dust removal case (31), and are configured to drive the air current flow direction of air current passageway (111) filtration (33).

10. A road sweeper, comprising:

A body (200);

The dust removing device according to any one of claims 1-9, which is provided on the machine body (200).