CN109381905B - Filter device capable of automatically replacing filter cloth - Google Patents
Filter device capable of automatically replacing filter cloth Download PDFInfo
- Publication number
- CN109381905B CN109381905B CN201811605817.6A CN201811605817A CN109381905B CN 109381905 B CN109381905 B CN 109381905B CN 201811605817 A CN201811605817 A CN 201811605817A CN 109381905 B CN109381905 B CN 109381905B
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- China
- Prior art keywords
- filter
- supporting groove
- filter cloth
- conveying device
- filter box
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- 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.)
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Links
- 239000004744 fabric Substances 0.000 title claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000001914 filtration Methods 0.000 claims abstract description 34
- 239000010865 sewage Substances 0.000 claims abstract description 26
- 238000003825 pressing Methods 0.000 claims description 18
- 238000011084 recovery Methods 0.000 claims description 17
- 238000004064 recycling Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000011229 interlayer Substances 0.000 claims description 6
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention provides a filtering device capable of automatically replacing filter cloth, which comprises: the sewage treatment device comprises a sewage pool, a filter tank, a supporting groove, a sliding rail, a clear water tank and a first cylinder; the sewage tank comprises a tank body and a water outlet positioned at the bottom of the tank body; the filter box comprises four side panels and a bottom plate; the top of the filter box is provided with a filter cloth fixing frame, and filter cloth is sleeved on the filter cloth fixing frame; a water outlet hole is formed in the bottom plate of the filter box; the supporting groove comprises a front side plate, a rear side plate and a bottom plate; the bottom of the supporting groove is connected with the sliding rail; a water outlet hole is formed in the bottom plate of the supporting groove, and the water outlet hole is arranged below the supporting groove and communicated with the clear water tank; the rear side plate of the supporting groove is fixedly connected with the first cylinder. The invention is convenient for automatically replacing the filter screen, is favorable for collecting and treating the filter residues, keeps the filter cloth to have good filtering effect and improves the filtering effect.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a filtering device capable of automatically replacing a filter screen.
Background
Along with the continuous expansion of the industrial production scale, the pollution and waste of water resources are more serious in the production operation process; the water treatment filter device can be used for recycling water resources such as sewage and wastewater, wherein the used filter cloth can effectively filter most impurities in the sewage and wastewater, so that further filtration treatment is facilitated; however, after the filter cloth is used for a period of time, the filter residues are easy to remain on the surface of the filter cloth, the impurities of the treated matters are remained in the filter cloth and are difficult to wash away, and the filter cloth can be used continuously, but the filtering effect of the filtering device is affected, the filter cloth is easy to be blocked, and the filtering water quality is affected, so that the filter cloth needs to be replaced frequently. In the prior art, the filter screen is more complicated to replace, and some equipment can be replaced only by stopping operation.
Disclosure of Invention
In order to solve the problems, the invention provides the filtering device capable of automatically replacing the filter cloth, so that the replacement speed of the filter cloth is improved, the operation of equipment is not influenced, the filter cloth is favorably kept to have good filtering effect, and the filtering effect is improved.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides a filtering device capable of automatically replacing filter cloth, which sequentially comprises the following components from top to bottom: the sewage treatment device comprises a sewage pool, a filter tank, a supporting groove, a sliding rail, a clear water tank and a first cylinder;
The sewage tank includes: the pool body and the water outlet positioned at the bottom of the pool body;
The filter box comprises four side panels and a bottom plate; the top of the filter box is provided with a filter cloth fixing frame, and filter cloth is sleeved on the filter cloth fixing frame; four sides of the filter box are provided with fixing plates, and a bottom plate of the filter box is provided with water outlets;
The supporting groove comprises a front side plate, a rear side plate and a bottom plate; the bottom of the supporting groove is connected with the sliding rail; a water outlet hole is formed in the bottom plate of the supporting groove, and the water outlet hole is arranged below the supporting groove and communicated with the clear water tank; the rear side plate of the supporting groove is fixedly connected with the first cylinder, and the first cylinder is used for driving the supporting groove to slide along the sliding rail.
Preferably, when the push rod of the first cylinder is retracted, the supporting groove is driven to slide to the position right below the water outlet of the sewage pool; when the push rod of the first cylinder extends out, the supporting groove is driven to be separated from the position right below the sewage pool.
Preferably, the filter cloth fixing frame comprises four sliding rods, at least 8 first buckles and at least 8 second buckles; the sliding rod is arranged at the top of the filter box in a sliding way, and the filter cloth is sleeved on the sliding rod of the filter fixing frame; the first buckles are arranged at four corners of the filter box, and the second buckles are arranged at the middle positions of the sides of the filter box.
Preferably, the filter cloth comprises one or more of non-woven fabrics and interlayer filter cloth; the interlayer filter cloth consists of wedge-shaped filter cloths with different holes.
Preferably, a sliding groove matched with the sliding rail is formed in the bottom of the supporting groove.
Preferably, the filtering device capable of automatically replacing the filter cloth further comprises a first conveying device; the two sides of the first conveying device are provided with limiting structures, the height difference between the conveying surface of the first conveying device and the bottom surface of the sliding rail is consistent with the thickness of the bottom plate of the supporting groove, and the moving direction of the first conveying device is perpendicular to the conveying direction of the sliding rail; the bottom of the filter box is provided with a clamping groove matched with the limiting structure of the first conveying device.
Preferably, the filtering device capable of automatically replacing the filter cloth further comprises a second conveying device; limiting structures are arranged on two sides of the second conveying device; the height difference between the conveying surface of the second conveying device and the bottom surface of the sliding rail is consistent with the thickness of the bottom plate of the supporting groove, and the movement direction of the second conveying device is perpendicular to the conveying direction of the sliding rail; the bottom of the filter box is provided with a clamping groove matched with the limiting structure of the second conveying device.
Preferably, the filtering device capable of automatically replacing the filter cloth further comprises a recovery device; the recycling device comprises a recycling table, a pressing plate and a second cylinder, wherein the pressing plate and the second cylinder are positioned above the recycling table; the recovery table is connected with one end of the second conveying device; the second cylinder above the recovery table is connected with the pressing plate, and the second cylinder drives the pressing plate to move along the direction perpendicular to the recovery table.
Preferably, the transmission directions of the first transmission device and the second transmission device are consistent.
The invention has the beneficial effects that: the invention provides a filtering device capable of automatically replacing filter cloth, which is convenient for automatically replacing a filter screen, is beneficial to collecting and processing filter residues, does not influence the operation of equipment, is beneficial to keeping the filter cloth to have good filtering effect and improves the filtering effect.
Drawings
FIG. 1 is a schematic view showing a state before replacing a filter cloth of a filtering apparatus capable of automatically replacing the filter cloth according to the present invention;
FIG. 2 is a schematic diagram showing a state of a filter device with automatically replaceable filter cloth after replacing the filter cloth according to the present invention;
FIG. 3 is a right side view of a filter device of the present invention with automatically replaceable filter cloths;
fig. 4 is a schematic view of a portion of a first conveyor, a support slot, and a slide rail according to the present invention.
In the figure: 1a filter box, 2a supporting groove, 3a slide rail, 4 filter cloth, 5 a filter cloth fixing frame, 6 a first conveying device, 7a second conveying device, 8a recovery table, 9 a second buckle, 10a first buckle, 11 a first cylinder, 12 a pressing plate, 13 a second cylinder, 14 a sewage tank, 15 a clean water tank, 610 a conveying surface and 210 a slide rail bottom surface.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The present invention will be described in detail below with reference to the accompanying drawings and detailed description of the invention.
Other embodiments of the present invention will be apparent to those skilled in the art from consideration of the present disclosure, which is set forth by way of example only. Various changes and modifications can be made to the invention without departing from the spirit and scope of the invention. Such variations and modifications are intended to be within the scope of the present invention.
It should be noted that, in the present invention, the terms "first," "second," "use," "standby," "replacement," "recycling" are used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, 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 connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The invention provides a filtering device capable of automatically replacing filter cloth, which comprises: the filter box 1, the supporting groove 2, the sliding rail 3, the filter cloth 4, the filter cloth fixing frame 5, the first conveying device 6, the second conveying device 7, the recovery table 8, the second buckle 9, the first buckle 10, the first cylinder 11, the pressing plate 12, the second cylinder 13, the sewage tank 14, the clean water tank 15, the conveying surface 610 and the bottom surface 210 of the supporting plate;
The sewage tank 14 comprises a tank body and a water outlet positioned at the bottom of the tank body;
The filter box 1 comprises four side panels and a bottom plate; the top of the filter box 1 is provided with a filter cloth fixing frame 5, and the filter cloth fixing frame 5 is sleeved with filter cloth 4; four sides of the filter box 1 are provided with fixing plates, and a bottom plate of the filter box 1 is provided with water outlets;
The support groove 2 includes: a front side plate, a rear side plate and a bottom plate; the bottom of the supporting groove 2 is connected with a sliding rail 3; a water outlet hole is formed in the bottom plate of the supporting groove 2, and the water outlet hole is arranged below the supporting groove 2 and communicated with the clear water tank 15; the rear side plate of the supporting groove 2 is fixedly connected with the first cylinder 11, and the first cylinder 11 is used for driving the supporting groove 2 to slide along the sliding rail 3; one end of the sliding rail 3 is adjacent to the first conveying device 6 and the second conveying device 7 respectively;
When the filter tank 1 is positioned in the supporting groove 2, and the push rod of the first cylinder 11 is retracted to drive the supporting groove 2 to slide to the position right below the water outlet of the sewage tank 14, the filter tank 1 is positioned at a using station;
When the filter tank 1 is positioned in the supporting groove 2, and the push rod of the first cylinder 11 extends out to drive the supporting groove 2 to be separated from the position right below the sewage pool 14, the filter tank 1 is positioned at a replacement station, and the supporting groove 2 is adjacent to the first conveying device 6 and the second conveying device 7.
Preferably, the filter cloth fixing frame 5 comprises four sliding rods, at least 8 first buckles 10 and at least 8 second buckles 9; the sliding rod is arranged at the top of the filter box 1 in a sliding way, and the filter cloth 4 is sleeved on the sliding rod of the filter fixing frame 5; specifically, the first fastening buckles 10 are disposed at four corners of the filtering box 1, and the second fastening buckles 11 are disposed at middle positions of each side of the filtering box 1.
Preferably, the filter cloth 4 comprises one or more of non-woven fabrics and interlayer filter cloth; specifically, the interlayer filter cloth consists of wedge-shaped filter cloths with different holes.
Preferably, a sliding groove matched with the sliding rail 3 is formed in the bottom of the supporting groove 2.
Preferably, the filtering device capable of automatically replacing the filter cloth further comprises a first conveying device 6; the two sides of the first conveying device 6 are provided with limit structures, the height difference between the conveying surface 610 of the first conveying device 6 and the bottom surface 210 of the sliding rail is consistent with the thickness of the bottom plate of the supporting groove 2, and the movement direction of the first conveying device 6 is perpendicular to the conveying direction of the sliding rail 3; the bottom of the filter box 1 is provided with a clamping groove matched with the limit structure of the first conveying device 6.
It is further preferred that the filter box 1 is in a standby position when the filter box 1 is located on the first conveyor 6.
Preferably, the filtering device capable of automatically replacing the filter cloth further comprises a second conveying device 7; limiting structures are arranged on two sides of the second conveying device 7; the height difference between the conveying surface of the second conveying device 7 and the bottom surface 210 of the sliding rail is consistent with the thickness of the bottom plate of the supporting groove 2, and the movement direction of the second conveying device 7 is perpendicular to the conveying direction of the sliding 3 rail; the bottom of the filter box 1 is provided with a clamping groove matched with the limiting structure of the second conveying device 7.
It is further preferred that the filter box 1 is in the recovery station when the filter box 1 is on the second conveyor 7.
Preferably, the filtering device capable of automatically replacing the filter cloth further comprises a recovery device; the recycling device comprises a recycling table 8, a pressing plate 12 and a second cylinder 13, wherein the pressing plate 12 and the second cylinder 13 are positioned above the recycling table 8; the recovery table 8 is connected with one end of the second conveying device 7; a second cylinder 13 positioned above the recovery table 8 is connected with the pressing plate 12, and the second cylinder 13 drives the pressing plate 12 to move along the direction vertical to the recovery table 8; specifically, when the push rod of the second cylinder 13 is in the extended state, the pressing plate 12 is pushed out downwards, so that the button on the pressing plate 12 is in contact with the first buckle 10 on the filter cloth holder 5.
Preferably, the first conveyor 6 is aligned with the direction of transmission of the second conveyor 7.
In a specific implementation scenario of the invention, a filtering device capable of automatically replacing filter cloth is provided, sewage enters a sewage tank 14 for collection, when a filtering box 1 is in a use station, the filtering box 1 is positioned in a supporting groove 2, and a push rod of a first cylinder 11 is retracted to drive the supporting groove 2 to slide to a position right below a water outlet of the sewage tank 14; the water outlet at the bottom of the sewage pool 14 discharges sewage into the filter tank 1 to be filtered by the filter cloth 4, and filtered clear water flows into the clear water tank 15 to be collected through the water outlet holes at the bottom of the filter tank 1 and the bottom of the supporting groove 2.
After the filtration is finished, the pneumatic control valve of the first cylinder 11 is opened, the filter tank 1 is positioned in the supporting groove 2, the push rod of the first cylinder 11 stretches out to drive the supporting groove 2 to be separated from the position right below the sewage pool 14, the filter tank 1 is positioned at a replacement station, and the supporting groove 2 is adjacent to the first conveying device 6 and the second conveying device 7.
The filter box 1 at the standby station slides into the replacement station along the conveying direction of the first conveying device 6, and pushes the filter box 1 at the replacement station onto the second conveying device 7, so that the filter box 1 at the replacement station originally enters the second conveying device 7 to be at the recovery station; specifically, the two sides of the first conveying device 6 and the second conveying device 7 are provided with limiting structures for stabilizing the position of the filter box 1 in the replacement process.
After the filter box 1 enters the recycling station, the filter box 1 is conveyed to a recycling table 8 along the conveying direction of a second conveying device 7 for recycling treatment; specifically, when the filter box 1 entering the recycling station is transported to the recycling table 8, the pneumatic control valve of the second cylinder 13 positioned above the recycling table 8 is opened, the push rod of the second cylinder 13 pushes the pressing plate 12 connected with the second cylinder 13 downwards, so that the pressing plate 12 is in contact with the first buckle 10 on the filter cloth fixing frame 5, the sliding rods formed by the filter cloth fixing frame 5 are unlocked, the sliding rods are influenced by the weight of the filter cloth 4 sleeved on the sliding rods, and the four sliding rods move towards the middle of the filter box 1, so that the filter cloth is convenient to detach and replace.
Claims (4)
1. A filtering device capable of automatically replacing filter cloth, comprising: the sewage treatment device comprises a sewage pool, a filter tank, a supporting groove, a sliding rail, a clear water tank and a first cylinder;
the sewage tank comprises a tank body and a water outlet positioned at the bottom of the tank body;
The filter box comprises four side panels and a bottom plate; the top of the filter box is provided with a filter cloth fixing frame, and filter cloth is sleeved on the filter cloth fixing frame; four sides of the filter box are provided with fixing plates, and a bottom plate of the filter box is provided with water outlets;
The supporting groove comprises a front side plate, a rear side plate and a bottom plate; the bottom of the supporting groove is connected with the sliding rail; a water outlet hole is formed in the bottom plate of the supporting groove, and the water outlet hole is arranged below the supporting groove and communicated with the clear water tank; the rear side plate of the supporting groove is fixedly connected with the first cylinder, and the first cylinder is used for driving the supporting groove to slide along the sliding rail;
the filter cloth fixing frame comprises four sliding rods, at least 8 first buckles and at least 8 second buckles; the sliding rod is arranged at the top of the filter box in a sliding way, and the filter cloth is sleeved on the sliding rod of the filter cloth fixing frame; the first buckles are arranged at four corners of the filter box, and the second buckles are arranged at the middle positions of the sides of the filter box;
The filtering device capable of automatically replacing the filter cloth further comprises a first conveying device and a second conveying device;
The two sides of the first conveying device are provided with limiting structures, the height difference between the conveying surface of the first conveying device and the bottom surface of the sliding rail is consistent with the thickness of the bottom plate of the supporting groove, and the moving direction of the first conveying device is perpendicular to the conveying direction of the sliding rail; a clamping groove matched with the limiting structure of the first conveying device is formed in the bottom of the filter box;
Limiting structures are arranged on two sides of the second conveying device; the height difference between the conveying surface of the second conveying device and the bottom surface of the sliding rail is consistent with the thickness of the bottom plate of the supporting groove, and the movement direction of the second conveying device is perpendicular to the conveying direction of the sliding rail; a clamping groove matched with the limiting structure of the second conveying device is formed in the bottom of the filter box;
When the filter box is positioned in the supporting groove, and the push rod of the first cylinder is retracted to drive the supporting groove to slide to the position right below the water outlet of the sewage tank, the filter box is positioned at a using station;
when the filter box is positioned in the supporting groove and the push rod of the first cylinder extends out to drive the supporting groove to be separated from the position right below the sewage pool, the filter box is positioned at a replacement station, and the supporting groove is adjacent to the first conveying device and the second conveying device;
When the filter box is positioned on the first conveying device, the filter box is positioned at a standby station, and when the filter box is positioned on the second conveying device, the filter box is positioned at a recovery station;
the filtering device capable of automatically replacing the filter cloth further comprises a recovery device; the recycling device comprises a recycling table, a pressing plate and a second cylinder, wherein the pressing plate and the second cylinder are positioned above the recycling table; the recovery table is connected with one end of the second conveying device; the second cylinder above the recovery table is connected with the pressing plate, and the second cylinder drives the pressing plate to move along the direction perpendicular to the recovery table.
2. The filtering device capable of automatically replacing filter cloth according to claim 1, wherein the filter cloth comprises one or more of non-woven fabrics and interlayer filter cloth; the interlayer filter cloth consists of wedge-shaped filter cloths with different holes.
3. The filtering device capable of automatically replacing filter cloth according to claim 1, wherein a sliding groove matched with the sliding rail is formed at the bottom of the supporting groove.
4. A filter device capable of automatically replacing filter cloth according to claim 1, wherein the transmission directions of the first transmission device and the second transmission device are consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811605817.6A CN109381905B (en) | 2018-12-27 | 2018-12-27 | Filter device capable of automatically replacing filter cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811605817.6A CN109381905B (en) | 2018-12-27 | 2018-12-27 | Filter device capable of automatically replacing filter cloth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109381905A CN109381905A (en) | 2019-02-26 |
| CN109381905B true CN109381905B (en) | 2024-04-19 |
Family
ID=65430960
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811605817.6A Active CN109381905B (en) | 2018-12-27 | 2018-12-27 | Filter device capable of automatically replacing filter cloth |
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| CN (1) | CN109381905B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110772870B (en) * | 2019-11-19 | 2021-12-10 | 广东景天环境科技股份有限公司 | Automatic filter screen replacing device of sewage micro-filter |
| CN111408174A (en) * | 2020-05-14 | 2020-07-14 | 苏州耀水源环境科技有限公司 | Sludge water sedimentation filtering mechanism with automatic material pushing function |
| CN112619329B (en) * | 2020-12-14 | 2022-05-06 | 鄂尔多斯市锦隆建筑安装有限责任公司 | Dust collector for environmental protection machinery |
| CN112915604B (en) * | 2021-01-28 | 2023-01-03 | 苏州城投环境科技发展有限公司 | Sewage purification agitating unit |
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| CN2058879U (en) * | 1989-11-04 | 1990-07-04 | 北京化工学院 | Hydraulic two-working-position filting converting device |
| KR20140048744A (en) * | 2012-10-16 | 2014-04-24 | 김진영 | Air conditioner filter change apparatus |
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| CN209900802U (en) * | 2018-12-27 | 2020-01-07 | 广州市真量纯科技有限公司 | Filtering device capable of automatically replacing filter cloth |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058879U (en) * | 1989-11-04 | 1990-07-04 | 北京化工学院 | Hydraulic two-working-position filting converting device |
| KR20140048744A (en) * | 2012-10-16 | 2014-04-24 | 김진영 | Air conditioner filter change apparatus |
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| CN106426759A (en) * | 2016-11-18 | 2017-02-22 | 江苏智石科技有限公司 | Universal mold change trolley system |
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|---|---|
| CN109381905A (en) | 2019-02-26 |
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