CN218439564U - Air filter, engine air inlet system and working machine - Google Patents
Air filter, engine air inlet system and working machine Download PDFInfo
- Publication number
- CN218439564U CN218439564U CN202222568287.0U CN202222568287U CN218439564U CN 218439564 U CN218439564 U CN 218439564U CN 202222568287 U CN202222568287 U CN 202222568287U CN 218439564 U CN218439564 U CN 218439564U
- Authority
- CN
- China
- Prior art keywords
- filter element
- housing
- air
- filter
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model relates to an engineering machine tool technical field provides an air cleaner, engine air intake system and operation machinery, and wherein, air cleaner includes: the shell is provided with an air inlet, an air outlet and an impurity outlet, and the opening and closing state of the impurity outlet is controllable; the filter element is rotatably arranged inside the shell and is provided with an inner cavity, the filter element is matched with the shell so as to separate the inner cavity of the filter element from the outer space of the filter element, the air inlet and the impurity outlet are communicated with the outer space of the filter element, and the air outlet is communicated with the inner cavity of the filter element; the fan is rotatably arranged at the impurity outlet and is arranged to generate airflow in the shell and discharge the airflow through the impurity outlet; and the driving device is arranged to drive the filter element and the fan to rotate. So set up, solved among the prior art need carry out the problem of dismouting to the filter core when cleaning air filter.
Description
Technical Field
The utility model relates to an engineering machine tool technical field especially relates to an air cleaner, engine air intake system and operation machinery.
Background
With the application development of the diversification of the operating machinery, the structure of the operating machinery tends to develop in aspects of refinement, humanization, convenience in operation and maintenance and the like. For example, in the case of an excavator, power is derived from an engine, and when the engine is in operation, sufficient clean air is required to enter a cylinder to fully combust fuel. However, since natural air contains impurities or dust, which enters a cylinder of an engine and is liable to damage the engine, an air cleaner is generally provided in an intake passage of the engine to filter air to be introduced into the engine.
Along with the increase of the working time, a large amount of impurities or dust are collected on a filter element of the air filter, so that the air suction back pressure of the air filter is increased, the air inflow of an engine is influenced, and the problems of poor combustion, insufficient power and the like of the engine are caused. In the prior art, generally, after a working machine works for a period of time, a filter element in an air filter is detached, and the filter element is cleaned and then installed on a shell of the air filter, so that the operation is complex. For engineering machinery such as an excavator and the like, because the operation environment is severe, a large amount of dust can be raised around the engineering machinery in the operation process, and the filter element is more frequently cleaned.
Therefore, how to solve the problem that the filter element needs to be disassembled and assembled when the air filter is cleaned in the prior art becomes an important technical problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air cleaner, engine air intake system and operation machinery for solve among the prior art need carry out the defect of dismouting to the filter core when cleaning air cleaner.
The utility model provides an air filter, include:
the shell is provided with an air inlet, an air outlet and an impurity outlet, and the opening and closing state of the impurity outlet is controllable;
the filter element is rotatably arranged inside the shell and is provided with an inner cavity, the filter element is matched with the shell so as to separate the inner cavity of the filter element from the outer space of the filter element, the air inlet and the impurity outlet are communicated with the outer space of the filter element, and the air outlet is communicated with the inner cavity of the filter element;
a fan rotatably disposed at the impurity outlet, the fan being configured to generate an air flow in the housing and to discharge the air flow through the impurity outlet;
a drive device configured to drive the filter element and the fan to rotate.
According to the utility model provides an air filter, still include the filter core mount pad, the filter core is fixed to be embedded in the filter core mount pad, the first end of filter core mount pad is connected with the drive arrangement, the side of filter core mount pad is the hollow out construction;
the filter core is that one end has open-ended tubular structure, the terminal surface of the open end of filter core with the end face seal contact of the second end of filter core mount pad, the second end of filter core mount pad be provided with the outlet duct of the opening correspondence intercommunication of filter core, the outlet duct runs through the gas outlet, and with shell rotation sealing connection.
According to the utility model, the filter element mounting seat comprises a first seat body and a second seat body;
the first end of the first seat body is connected with the driving device, the second end of the second seat body is connected with the shell in a rotating and sealing manner, the second end of the first seat body and the first end of the second seat body are both provided with openings for the filter element to extend into, and the second end of the first seat body is detachably connected with the first end of the second seat body.
According to the air filter provided by the utility model, the rotation axis of the fan is coincided with the rotation axis of the filter element;
the driving device comprises a double-shaft motor, and two output shafts of the double-shaft motor are respectively fixedly connected with the fan and the filter element.
According to the utility model provides a pair of air cleaner still includes air pre-filter, air pre-filter set up in air inlet department.
According to the utility model provides a pair of air cleaner, the shell is including being used for holding the first casing of fan with be used for holding the second casing of filter core, first casing with second casing detachably sealing connection, just the inner chamber of first casing with the inner chamber of second casing is linked together.
According to the utility model provides a pair of air cleaner, first casing with the second casing all is tubular structure, the cross section of second casing is circular, the shell the air inlet department prolongs and is equipped with the intake pipe, the intake pipe sets up to make gaseous edge the circumference of second casing gets into the inside of shell.
According to the utility model provides a pair of air cleaner, first casing includes casing portion, lid portion and installing support, casing portion is the equal open tubular structure in both ends, lid portion with the one end detachably sealing connection of casing portion, the installing support set up in the inside of casing portion, the fan and/or drive arrangement with the installing support is connected.
The utility model also provides an engine air intake system, including foretell air cleaner.
The utility model also provides an operating machine, including foretell air cleaner, perhaps, including foretell engine air intake system.
The utility model provides an air filter, including shell, filter core, fan and drive arrangement, the filter core sets up in the inside of shell for filter gas. The filter element is provided with an inner cavity, the filter element is matched with the shell, so that the inner cavity of the filter element is separated from the outer space of the filter element, and two mutually independent cavities are formed in the shell. An air inlet, an air outlet and an impurity outlet are arranged on the shell, the air inlet and the impurity outlet are communicated with the outer space of the filter element, and the air outlet is communicated with the inner cavity of the filter element. The open-close state of the impurity outlet is controllable, when gas is filtered, the impurity outlet is switched to the close state, the gas enters the shell through the gas inlet, passes through the filter element and enters the inner cavity of the filter element, then is discharged through the gas outlet, and impurities in the gas are intercepted outside the filter element by the filter element. The filter element can rotate relative to the shell, the fan can be rotatably arranged at the impurity outlet, and the driving device is used for driving the fan and the filter element to rotate. When the fan rotates, air flow can be generated in the shell and can be discharged through the impurity outlet. When the clean filter core of needs, switch over the impurity export to the open mode, utilize drive arrangement to order about fan and filter core rotation, when the fan rotates, produce the air current in the shell, when the filter core rotates, impurity on attached to the filter core can with the filter core phase separation under the effect of centrifugal force, with the impurity of filter core phase separation under the effect of carrying of air current, can discharge to the outside of shell through the impurity export along with the air current. So set up, need not the dismouting filter core, can accomplish the cleanness to the filter core, convenient operation has solved among the prior art and need carry out the problem of dismouting to the filter core when cleaning air filter ware.
Further, the present invention provides an engine intake system including the air cleaner as described above, and therefore also having various advantages as described above.
Further, the present invention provides a working machine including the air cleaner or the engine intake system as described above, and therefore also having various advantages as described above.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of an external structure of an air cleaner according to the present invention when a foreign substance outlet is closed;
FIG. 2 is a side view of an air cleaner provided by the present invention;
fig. 3 is a schematic view of an external structure of an air cleaner provided by the present invention when a foreign matter outlet is in an open state;
FIG. 4 is a cross-sectional view of an air cleaner provided by the present invention;
FIG. 5 is an exploded schematic view of the air cleaner provided by the present invention;
fig. 6 is a schematic structural view of the filter element mounting seat provided by the present invention.
Reference numerals:
1. an air inlet; 2. an air outlet; 3. an impurity outlet; 4. a filter element; 5. a fan; 6. a filter element mounting seat; 7. an air outlet pipe; 8. a first seat body; 9. a second seat body; 10. a double-shaft motor; 11. an air pre-filter; 12. a second housing; 13. an air inlet pipe; 14. a housing portion; 15. a lid portion; 16. and (7) mounting a bracket.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
The air cleaner of the present invention will be described with reference to fig. 1 to 6.
As shown in fig. 1 to 6, an air cleaner provided by an embodiment of the present invention includes a housing, a filter element 4, a fan 5, and a driving device.
In particular, the filter cartridge 4 is arranged inside the casing for filtering the gas. A gap is reserved between the filter element 4 and the shell, the filter element 4 is provided with an inner cavity, the filter element 4 is matched with the shell, the inner cavity of the filter element 4 is separated from the outer space of the filter element 4, and two mutually independent cavities are formed in the shell.
Be provided with air inlet 1, gas outlet 2 and impurity export 3 on the shell, air inlet 1 and impurity export 3 all are linked together with the exterior space of filter core 4, and gas outlet 2 is linked together with the inner chamber of filter core 4.
The opening and closing state of the impurity outlet 3 is controllable, and the impurity outlet 3 can be switched between the opening state and the closing state according to requirements.
When filtering gas, switch over impurity export 3 to the closed condition, gas passes through the inside that air inlet 1 got into the shell, through filter core 4 and the inner chamber that gets into filter core 4, then discharges through gas outlet 2, and impurity in the gas is then intercepted by filter core 4, avoids getting into the inner chamber of filter core 4.
The filter element 4 is rotatable relative to the housing, the fan 5 is rotatably arranged at the impurity outlet 3, and the drive means is arranged to drive the fan 5 and the filter element 4 in rotation. When the fan 5 is rotated, an air flow can be generated in the housing and discharged through the foreign matter outlet 3.
When the filter element 4 needs to be cleaned, the impurity outlet 3 is switched to the opening state, and the fan 5 and the filter element 4 are driven to rotate by the driving device. When the fan 5 rotates, an air flow is generated in the housing. When the filter element 4 rotates, the impurities attached to the filter element 4 can be separated from the filter element 4 under the action of centrifugal force, and the impurities separated from the filter element 4 can be discharged to the outside of the shell through the impurity outlet 3 along with the air flow under the carrying action of the air flow.
So set up, need not dismouting filter core 4, can accomplish the cleanness to filter core 4, convenient operation has solved among the prior art need carry out the problem of dismouting to filter core 4 when cleaning air filter ware.
When the filter element 4 is cleaned, the engine connected to the air cleaner needs to be stopped.
In this embodiment, the air cleaner further includes a filter cartridge mounting seat 6 for mounting the filter cartridge 4. The filter element 4 is embedded in the filter element mounting seat 6, and the filter element 4 and the filter element mounting seat 6 are relatively fixed.
The first end of the filter element mounting seat 6 is connected with a driving device, and the second end of the filter element mounting seat 6 is rotatably connected with the shell. The driving device operates to drive the filter element mounting seat 6 and the filter element 4 to rotate relative to the shell.
In order to ensure that gas can pass through the filter element 4 and enter the inner cavity of the filter element 4, the side surface of the filter element mounting seat 6 is provided with a hollow structure, so that the outer wall surface of the filter element 4 is exposed, and the outer wall surface of the filter element 4 is in direct contact with the air in the shell.
The filter element 4 is a cylindrical structure with an opening at one end, the opening end of the filter element 4 faces the second end of the filter element mounting seat 6, the end face of the opening end of the filter element 4 is in sealing contact with the end face of the second end of the filter element mounting seat 6, gas outside the filter element 4 can be prevented from directly entering the inner cavity of the filter element 4 without being filtered, and the filtering effect of the air filter is ensured. Meanwhile, the gas in the inner cavity of the filter element 4 can be prevented from overflowing at the gap between the filter element 4 and the filter element mounting seat 6.
And the second end of the filter element mounting seat 6 is provided with an air outlet pipe 7, the air outlet pipe 7 is correspondingly communicated with the opening of the filter element 4, and the air outlet pipe 7 penetrates through the air outlet 2 and is connected with the shell in a rotating and sealing manner, referring to fig. 4. The air filtered by the filter element 4 can be discharged to the outside of the shell through the air outlet pipe 7, and the leakage of the air which enters the inside of the shell but is not filtered can be prevented, thereby ensuring the reliability of the air filter.
Specifically, a bearing may be disposed between the outlet tube 7 and the housing, and a sealing member such as a sealing ring may be used to seal a gap between the outlet tube 7 and the housing, so as to achieve a rotational sealing connection between the outlet tube 7 and the housing.
To facilitate the installation of the filter cartridge 4 on the filter cartridge installation seat 6, in the embodiment, the filter cartridge installation seat 6 is configured as two detachably connected parts, namely a first seat body 8 and a second seat body 9, as shown in fig. 6.
The first seat 8 is configured to be connected to the driving device, and specifically, a first end of the first seat 8 may be fixedly connected to an output end of the driving device.
The second seat 9 is configured to be rotatably and hermetically connected to the housing, and specifically, the air outlet tube 7 may be disposed at a second end of the second seat 9, so that the second end of the second seat 9 is rotatably and hermetically connected to the housing through the air outlet tube 7.
The second end of the first seat 8 and the first end of the second seat 9 are both provided with openings for the filter element 4 to extend into. The second end of the first seat 8 is detachably connected with the first end of the second seat 9, so that the filter element 4 can be conveniently replaced.
In a specific embodiment, the first seat 8 includes a first baffle and a plurality of connecting rods, the connecting rods are distributed along a circumferential direction of the first baffle, one end of each connecting rod is fixedly connected to the first baffle, and the other end of each connecting rod is a free end. Be provided with a plurality of through-holes on first baffle, can form hollow out construction at the terminal surface of the first end of filter core mount pad 6.
The second seat body 9 comprises a second baffle plate and a positioning barrel, wherein openings are formed in two ends of the positioning barrel, and the second baffle plate is located at one end of the positioning barrel and is fixedly connected with the positioning barrel. The central position of the second baffle plate is provided with a through hole which corresponds to the opening of the filter element 4 and is communicated with the air outlet pipe 7.
The positioning cylinder is provided with a through hole penetrating through the side wall of the positioning cylinder, and the hollow structure positioned on the side surface of the filter element mounting seat 6 is formed by combining the space between the adjacent connecting rods.
The other end of the positioning cylinder is provided with a jack extending along the axis direction of the positioning cylinder, the jacks correspond to the connecting rods one to one, and the connecting rods are connected with the jacks in an inserting mode, so that the first seat body 8 and the second seat body 9 can be detachably connected.
The outer surface of the filter element 4 generally has a deformable layer such as a sponge, and the filter element 4 and the filter element attachment seat 6 can be fixed relative to each other by pressing the filter element 4 against the positioning cylinder.
In this embodiment, the impurity outlet 3 is aligned with the air outlet 2, so that the rotation axis of the fan 5 coincides with the rotation axis of the filter element 4.
At this time, the biaxial motor 10 may be selected as the driving means. The double-shaft motor 10 has two output shafts, one of which is fixedly connected to the fan 5 and the other of which is fixedly connected to the filter element 4 or the filter element mounting seat 6. Thus, only one motor is arranged to drive the fan 5 and the filter element 4 to rotate, and the fan 5 and the filter element 4 rotate synchronously.
In an alternative embodiment, the driving device may also include two single-shaft motors, wherein an output shaft of one single-shaft motor is fixedly connected with the fan 5, and an output shaft of the other single-shaft motor is fixedly connected with the filter element 4 or the filter element mounting seat 6. So, utilize two motors to drive respectively and divide fan 5 and filter core 4 to rotate, the rotation of fan 5 and filter core 4 is independent each other, each other does not influence.
The embodiment of the utility model provides an in, air cleaner still includes air pre-filter 11, and air pre-filter 11 sets up in air inlet 1 department for carry out the prefilter to the gas that gets into the shell, can effectively reduce the inside that the impurity of large granule got into the shell.
It should be noted that the air precleaner 11 is well known in the art and will not be described herein.
In this embodiment, in order to facilitate replacement of the filter element 4, the housing is configured as two detachable parts, namely a first housing and a second housing 12, wherein the first housing is used for accommodating the fan 5, and the second housing 12 is used for accommodating the filter element 4.
Specifically, the first housing and the second housing 12 are both in a cylindrical structure, the driving device and the fan 5 are located in the first housing, after the filter element 4 is connected with the driving device, the filter element 4 extends into the second housing 12, and then the first housing and the second housing 12 are fixedly connected together, so that the inner cavity of the first housing is communicated with the inner cavity of the second housing 12, and the sealing performance of the connection structure between the first housing and the second housing 12 is ensured.
If the filter element installation seat 6 is arranged in the air filter and the filter element installation seat 6 comprises the first seat body 8 and the second seat body 9 which are detachably connected, the fan 5 and the driving device can be arranged in the first shell, and the first seat body 8 is connected with the driving device. The second seat 9 is disposed in the second housing 12.
When the filter element 4 is installed, one end of the filter element 4 extends into the first seat body 8, the other end of the filter element 4 extends into the second seat body 9, the first seat body 8 and the second seat body 9 are fixedly connected in an inserting mode, and then the first shell is fixedly connected with the second shell 12.
When the first housing and the second housing 12 are fixedly connected, the open end of the second housing 12 may be extended into the open end of the first housing, and the open end of the second housing 12 and the open end of the first housing may be detachably and hermetically connected.
Specifically, an external thread may be provided at the open end of the second housing 12, and an internal thread may be provided at the open end of the first housing, so that the first housing is screwed with the second housing 12.
In the present embodiment, the cross section of the second housing 12 is provided in a circular shape, that is, the second housing 12 has a cylindrical shape. As shown in fig. 2 and fig. 3, an air inlet pipe 13 is extended from the air inlet 1 of the outer shell, and after passing through the air inlet pipe 13, the air can enter the inside of the outer shell along the circumferential direction of the second shell 12, which is beneficial for the air to diffuse to various positions in the outer shell.
In this embodiment, the first housing includes a housing portion 14, a cover portion 15 and a mounting bracket 16, wherein the housing portion 14 is a cylindrical structure with two open ends, and the mounting bracket 16 is disposed inside the housing portion 14 and is used for supporting the fan 5 and/or the driving device.
Specifically, it is sufficient to fix the driving device to the mounting bracket 16 and then connect the fan 5 to the driving device.
The housing portion 14 has one end connected to the second housing 12 and the other end connected to the cover portion 15. The open structure of the housing 14 at one end for connection with the cover 15 serves as the impurity outlet 3. When the cover 15 is connected to the case 14, the impurity outlet 3 can be switched to the closed state, see fig. 1; when the cover 15 is separated from the case 14, the impurity outlet 3 can be switched to the open state, see fig. 3.
On the other hand, the embodiment of the utility model provides an engine air intake system is still provided, including the air cleaner that any above-mentioned embodiment provided. The air filter in the embodiment can clean the filter element 4 without dismounting the filter element 4, and is convenient to operate. Therefore, the engine air inlet system in the embodiment has the advantage of convenience in maintenance. The embodiment of the utility model provides an engine air intake system's beneficial effect derive the process similar with air cleaner's beneficial effect's derivation process is general, and it is no longer repeated here.
In another aspect, an embodiment of the present invention further provides a working machine, including an air cleaner or an engine air intake system provided in any of the above embodiments, having all the advantages of the air cleaner or the engine air intake system, which are not described herein again. The embodiment of the utility model provides an in the beneficial effect of operation machinery derive the process similar roughly with the derivation process of air cleaner or engine air intake system's beneficial effect, and it is no longer repeated here.
The working machine in this embodiment may be an engineering machine such as a crane, an excavator, a pile machine, or an engineering vehicle such as a climbing vehicle, a fire truck, or a mixer truck.
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 it; 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 technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An air cleaner, comprising:
the device comprises a shell, a gas inlet, a gas outlet and an impurity outlet, wherein the opening and closing states of the impurity outlet are controllable;
the filter element is rotatably arranged inside the shell and is provided with an inner cavity, the filter element is matched with the shell so as to separate the inner cavity of the filter element from the outer space of the filter element, the air inlet and the impurity outlet are communicated with the outer space of the filter element, and the air outlet is communicated with the inner cavity of the filter element;
a fan rotatably disposed at the impurity outlet, the fan being configured to generate an air flow in the housing and to discharge the air flow through the impurity outlet;
a drive device configured to drive the filter element and the fan to rotate.
2. The air cleaner of claim 1, further comprising a filter element mounting seat, wherein the filter element is fixedly embedded in the filter element mounting seat, a first end of the filter element mounting seat is connected with the driving device, and the side surface of the filter element mounting seat is in a hollow structure;
the filter core is that one end has open-ended tubular structure, the terminal surface of the open end of filter core with the end face seal contact of the second end of filter core mount pad, the second end of filter core mount pad be provided with the outlet duct of the opening correspondence intercommunication of filter core, the outlet duct runs through the gas outlet, and with shell rotation sealing connection.
3. The air cleaner of claim 2, wherein the cartridge mount includes a first seat and a second seat;
the first end of the first seat body is connected with the driving device, the second end of the second seat body is connected with the shell in a rotating and sealing manner, the second end of the first seat body and the first end of the second seat body are respectively provided with an opening for the filter element to extend into, and the second end of the first seat body is detachably connected with the first end of the second seat body.
4. The air cleaner of claim 1, wherein an axis of rotation of the fan coincides with an axis of rotation of the filter element;
the driving device comprises a double-shaft motor, and two output shafts of the double-shaft motor are respectively fixedly connected with the fan and the filter element.
5. The air cleaner of claim 1, further comprising an air precleaner disposed at the air inlet.
6. The air cleaner of claim 1, wherein the housing includes a first housing for receiving the fan and a second housing for receiving the filter element, the first housing is removably and sealingly coupled to the second housing, and the interior of the first housing is in communication with the interior of the second housing.
7. The air cleaner of claim 6, wherein the first housing and the second housing are both cylindrical, the second housing has a circular cross section, and an air inlet pipe extends from the air inlet of the housing and is configured to allow air to enter the housing along a circumferential direction of the second housing.
8. The air cleaner of claim 6, wherein the first housing includes a housing portion, a cover portion and a mounting bracket, the housing portion is a cylindrical structure with two open ends, the cover portion is detachably and hermetically connected with one end of the housing portion, the mounting bracket is disposed inside the housing portion, and the fan and/or the driving device is connected with the mounting bracket.
9. An engine air intake system, characterized by comprising an air cleaner as recited in any one of claims 1 to 8.
10. A work machine comprising an air cleaner as claimed in any one of claims 1 to 8, or an engine air intake system as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222568287.0U CN218439564U (en) | 2022-09-27 | 2022-09-27 | Air filter, engine air inlet system and working machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222568287.0U CN218439564U (en) | 2022-09-27 | 2022-09-27 | Air filter, engine air inlet system and working machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218439564U true CN218439564U (en) | 2023-02-03 |
Family
ID=85083305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222568287.0U Active CN218439564U (en) | 2022-09-27 | 2022-09-27 | Air filter, engine air inlet system and working machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218439564U (en) |
-
2022
- 2022-09-27 CN CN202222568287.0U patent/CN218439564U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218439564U (en) | Air filter, engine air inlet system and working machine | |
| CN112096544B (en) | Empty filter assembly with dustproof filtering capability | |
| CN210460909U (en) | Air filter with turbine rotary filter element | |
| CN214019757U (en) | Automobile filter filtering device | |
| CN210509438U (en) | Vibration type self-cleaning air filter | |
| CN213655129U (en) | Novel screw blower | |
| CN212296664U (en) | Novel air filter, assembly and engineering machinery | |
| CN212141644U (en) | Water body cleaner | |
| CN210599222U (en) | Centrifugal filter | |
| CN111365149B (en) | Air filter capable of quickly renewing filter element without dismounting | |
| CN217401035U (en) | Dust exhaust cover, air filter and operation machine | |
| CN212548746U (en) | Integrated air filter for oil-injection screw vacuum pump | |
| CN214404007U (en) | Novel high radiating impeller pump | |
| CN219262538U (en) | Dust-removing air filter | |
| CN213915084U (en) | Water inlet device for cleaning machine | |
| CN219529306U (en) | Rotary vane vacuum pump | |
| CN214400916U (en) | Dustproof wool suction device for circular knitting machine | |
| CN216569752U (en) | Change-over valve and dust catcher | |
| CN219023598U (en) | Pulse dust collector | |
| CN220151624U (en) | Mixed flow pump with filter screen convenient to replace | |
| CN218544776U (en) | Air purifier of double-deck interior cartridge structure that filters | |
| CN216842265U (en) | Novel submersible pump | |
| CN211202222U (en) | Novel filter for pump | |
| CN221207176U (en) | Air filter | |
| CN115288891B (en) | Self-cleaning filter and hydrogen fuel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |