CN112755619A - Pure water filtering device for liquid crystal screen cleaning machine - Google Patents
Pure water filtering device for liquid crystal screen cleaning machine Download PDFInfo
- Publication number
- CN112755619A CN112755619A CN202110011064.1A CN202110011064A CN112755619A CN 112755619 A CN112755619 A CN 112755619A CN 202110011064 A CN202110011064 A CN 202110011064A CN 112755619 A CN112755619 A CN 112755619A
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- Prior art keywords
- fixed
- pure water
- cleaning machine
- liquid crystal
- screen cleaning
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- 238000001914 filtration Methods 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000004140 cleaning Methods 0.000 title claims abstract description 22
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 13
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 8
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
Images
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
- B01D29/96—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a pure water filtering device for a liquid crystal screen cleaning machine, which comprises a rack and two filtering tanks arranged on the inner side of the rack, wherein an operation cabinet is arranged on one side of the inner side of the rack, which is opposite to the two filtering tanks, the front surface of the operation cabinet is rotatably connected with an operation cabinet door, two rear supporting rods are fixed on the inner wall of the rack, which is opposite to the rear parts of the two filtering tanks, a rectangular mounting opening is formed in the center of each rear supporting rod, and a base column is fixed in each rectangular mounting opening; through back vaulting pole, rectangle installing port, foundation column, cylinder piece, fixation clamp, interior spout, interior slide bar, interior slider, threaded rod and the nut that sets up for filter tank can be quick accomplish the installation and dismantle in the inboard of frame, and the steadiness after the installation obtains promoting, compares the loaded down with trivial details dismouting step of former device, can bring the convenience for follow-up operating personnel to the dismouting when filtering tank maintains, improves work efficiency.
Description
Technical Field
The invention belongs to the technical field of liquid crystal screen cleaning machines, and particularly relates to a pure water filtering device for a liquid crystal screen cleaning machine.
Background
The liquid crystal screen cleaning machine is a special cleaning device used in liquid crystal screen processing, is suitable for cleaning LCD and LCD after sealing glue, and mainly comprises a machine body, a material driving device, an ultrasonic cleaning circulating water tank, a pure water filtering device and other structures, wherein the pure water filtering device is mainly used for filtering pure water in the water tank, and the pure water filtering device mainly comprises a frame, a filtering tank, an operation cabinet, a water pump, a connecting pipe and other parts.
When the pure water filtering device of the existing liquid crystal screen cleaning machine is used, the filtering tank on the inner side of the rack is fixedly installed through a plurality of U-shaped clamps and a large number of bolts, so that the assembly efficiency of the filtering tank is not high, inconvenience is brought to installation of the filtering tank by an operator, and meanwhile, disassembly and assembly of the filtering tank during maintenance of a subsequent operator are not convenient.
Disclosure of Invention
The invention aims to provide a pure water filtering device for a liquid crystal screen cleaning machine, which solves the problems that when the pure water filtering device of the existing liquid crystal screen cleaning machine provided in the background art is used, a filtering tank on the inner side of a rack is fixedly installed through a plurality of U-shaped clamps and a large number of bolts, the assembly efficiency of the filtering tank is low, inconvenience is brought to installation of the filtering tank by an operator, and the disassembly and assembly of the filtering tank during maintenance of a subsequent operator are not convenient.
In order to achieve the purpose, the invention provides the following technical scheme: a pure water filtering device for a liquid crystal screen cleaning machine comprises a rack and two filtering tanks arranged on the inner side of the rack, wherein an operation cabinet is arranged on one side, opposite to the two filtering tanks, of the inner side of the rack, an operation cabinet door is rotatably connected to the front surface of the operation cabinet, two rear supporting rods are fixed on the inner wall of the rack, opposite to the rear parts of the two filtering tanks, a rectangular mounting opening is formed in the center of each rear supporting rod, a base column is fixed in each rectangular mounting opening, the top end of each base column is connected with a cylindrical block, two fixing clamps are fixed on two sides of each cylindrical block, the two fixing clamps are respectively sleeved on the surfaces of the two filtering tanks, an inner sliding groove is formed in each base column, an inner sliding rod and an inner sliding block are fixedly connected in each inner sliding groove, the top end of each inner sliding rod penetrates through the top end of each base column and is welded and fixed with the cylindrical block, a threaded rod penetrating through the rear surface of each, and a nut is sleeved at the top end of the threaded rod and is tightly attached to the rear surface of the rear stay bar.
Preferably, a limiting mechanism is arranged between the operation cabinet door and the rack, the limiting mechanism comprises a rectangular pin groove formed in the front surface of the operation cabinet door, a pushing pin is connected to the inner side of the rectangular pin groove in a sliding mode, a limiting seat with holes corresponding to the pushing pin is fixed on the front surface of the rack, and through holes corresponding to the pushing pin penetrate through the limiting seat with holes.
Preferably, two side sliding blocks are fixed on the surfaces of two sides of the pushing pin, side sliding grooves are formed in the inner walls of two sides of the rectangular pin groove, and the side sliding blocks are located in the side sliding grooves.
Preferably, the top surface of the push pin is provided with an integrated hemispherical protrusion, and the inner wall of the through hole is provided with a clamping groove corresponding to the hemispherical protrusion.
Preferably, the surface of the push pin is provided with a rectangular push hole in a penetrating way, and the push pin and the hemispherical bulge are both made of elastic material members.
Preferably, two arc-shaped grooves corresponding to the filter tank are symmetrically formed in the front surface of the rear support rod relative to two sides of the rectangular mounting opening, a first arc-shaped pad is fixed in each arc-shaped groove, and the first arc-shaped pad is tightly attached to the filter tank.
Preferably, the inner wall of the fixing clamp is fixed with a second arc-shaped pad, and the second arc-shaped pad is tightly attached to the filter tank.
Preferably, two side legs are symmetrically fixed to the bottom end of the foundation column, and the side legs are fixed in the rectangular mounting opening through bolts.
Compared with the prior art, the invention has the beneficial effects that:
1. through back vaulting pole, rectangle installing port, foundation column, cylinder piece, fixation clamp, interior spout, interior slide bar, interior slider, threaded rod and the nut that sets up for filter tank can be quick accomplish the installation and dismantle in the inboard of frame, and the steadiness after the installation obtains promoting, compares the loaded down with trivial details dismouting step of former device, can bring the convenience for follow-up operating personnel to the dismouting when filtering tank maintains, improves work efficiency.
2. Through setting up by the rectangle cotter way, promote, the rectangle pushes away the stop gear that hole, hemisphere arch and foraminiferous spacing seat are constituteed for when operating personnel will operate the cabinet door and open and overhaul operation cabinet inside, accessible stop gear carries on spacingly to operating the cabinet door, prevents that operating the cabinet door swing back and forth and causes the hindrance for overhauing the operation, thereby improves maintenance efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top cross-sectional view of the attachment of the retaining clip to the canister of the present invention;
FIG. 3 is an enlarged view of a portion of the area B of FIG. 2 in accordance with the present invention;
FIG. 4 is an enlarged view of a portion of the area A in FIG. 1 according to embodiment 1 of the present invention;
FIG. 5 is an enlarged view of a portion of the area A in FIG. 1 according to embodiment 2 of the present invention;
in the figure: 1. a frame; 2. a filter tank; 3. a rear stay bar; 4. a fixing clip; 5. a cylindrical block; 6. operating the cabinet door; 7. a base pillar; 8. an inner slide bar; 9. an inner chute; 10. a threaded rod; 11. a nut; 12. an inner slide block; 13. a promotion; 14. a rectangular push hole; 15. a hemispherical protrusion; 16. a rectangular pin slot; 17. a limiting seat with a hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 4, the present invention provides a technical solution: a pure water filtering device for a liquid crystal screen cleaning machine comprises a frame 1 and two filtering tanks 2 arranged on the inner side of the frame 1, wherein an operation cabinet is arranged on one side of the inner side of the frame 1 opposite to the two filtering tanks 2, the front surface of the operation cabinet is rotationally connected with an operation cabinet door 6 through a hinge, two rear support rods 3 are welded on the inner wall of the frame 1 opposite to the rear parts of the two filtering tanks 2, a rectangular installation opening is formed in the center of each rear support rod 3, a base column 7 is fixed in each rectangular installation opening, the top end of each base column 7 is connected with a cylindrical block 5, two fixing clamps 4 are welded and fixed on two sides of each cylindrical block 5, the two fixing clamps 4 are respectively sleeved on the surfaces of the two filtering tanks 2, an inner chute 9 is formed in the base column 7, an inner sliding rod 8 and an inner sliding block 12 are fixedly connected in the inner sliding chute 9, the top end of the inner sliding rod 8 penetrates through the top end of the base, one side welded fastening of interior slider 12 has the threaded rod 10 that runs through to rear stay 3 rear surface, and the top cover of threaded rod 10 is equipped with nut 11, and nut 11 closely laminates with rear stay 3 rear surface for filter tank 2 can be quick accomplish the installation and dismantle in the inboard of frame 1.
In this embodiment, preferably, a limiting mechanism is arranged between the operation cabinet door 6 and the rack 1, the limiting mechanism includes a rectangular pin groove 16 formed in the front surface of the operation cabinet door 6, the inner side of the rectangular pin groove 16 is connected with a push pin 13 in a sliding manner, a perforated limiting seat 17 corresponding to the push pin 13 is fixed on the front surface of the rack 1, and a through hole corresponding to the push pin 13 is formed in the perforated limiting seat 17 in a penetrating manner, so that when an operator opens the operation cabinet door 6 to overhaul the inside of the operation cabinet, the operation cabinet door 6 can be limited by the limiting mechanism.
In this embodiment, preferably, two side sliding blocks are fixed on both side surfaces of the push pin 13, side sliding grooves are formed on both side inner walls of the rectangular pin groove 16, and the side sliding blocks are located in the side sliding grooves, so that the push pin 13 can be smoothly pushed up and down.
In this embodiment, preferably, the top surface of the push pin 13 is provided with an integrated hemispherical protrusion 15, and the inner wall of the through hole is provided with a slot corresponding to the hemispherical protrusion 15, so that the top end of the push pin 13 can be limited after being pushed into the through hole.
In this embodiment, it is preferable that a rectangular push hole 14 is formed through the surface of the push pin 13, so that the push pin 13 can be easily pushed up and down, and both the push pin 13 and the hemispherical protrusion 15 are made of an elastic material, where the elastic material is rubber.
In this embodiment, preferably, two arc walls corresponding to the filter tank 2 are provided on the front surface of the rear stay bar 3 relative to the bilateral symmetry of the rectangular mounting opening, a first arc pad is fixed in the arc wall, the first arc pad is tightly attached to the filter tank 2, a second arc pad is fixed on the inner wall of the fixing clamp 4, the first arc pad and the second arc pad are made of rubber, and the second arc pad is tightly attached to the filter tank 2, so that the filter tank 2 can be fixed and more stable.
In this embodiment, preferably, two side legs are symmetrically fixed to the bottom end of the foundation pillar 7, and the side legs are fixed in the rectangular mounting opening through bolts.
Example 2
Referring to fig. 1, fig. 2, fig. 3 and fig. 5, the present invention provides a technical solution: a pure water filtering device for a liquid crystal screen cleaning machine comprises a frame 1 and two filtering tanks 2 arranged on the inner side of the frame 1, wherein an operation cabinet is arranged on one side of the inner side of the frame 1 opposite to the two filtering tanks 2, the front surface of the operation cabinet is rotationally connected with an operation cabinet door 6 through a hinge, two rear support rods 3 are welded on the inner wall of the frame 1 opposite to the rear parts of the two filtering tanks 2, a rectangular installation opening is formed in the center of each rear support rod 3, a base column 7 is fixed in each rectangular installation opening, the top end of each base column 7 is connected with a cylindrical block 5, two fixing clamps 4 are welded and fixed on two sides of each cylindrical block 5, the two fixing clamps 4 are respectively sleeved on the surfaces of the two filtering tanks 2, an inner chute 9 is formed in the base column 7, an inner sliding rod 8 and an inner sliding block 12 are fixedly connected in the inner sliding chute 9, the top end of the inner sliding rod 8 penetrates through the top end of the base, one side welded fastening of interior slider 12 has the threaded rod 10 that runs through to rear stay 3 rear surface, and the top cover of threaded rod 10 is equipped with nut 11, and nut 11 closely laminates with rear stay 3 rear surface for filter tank 2 can be quick accomplish the installation and dismantle in the inboard of frame 1.
In this embodiment, preferably, a limiting mechanism is arranged between the operation cabinet door 6 and the rack 1, the limiting mechanism includes a rectangular pin groove 16 formed in the front surface of the operation cabinet door 6, the inner side of the rectangular pin groove 16 is connected with a push pin 13 in a sliding manner, a perforated limiting seat 17 corresponding to the push pin 13 is fixed on the front surface of the rack 1, and a through hole corresponding to the push pin 13 is formed in the perforated limiting seat 17 in a penetrating manner, so that when an operator opens the operation cabinet door 6 to overhaul the inside of the operation cabinet, the operation cabinet door 6 can be limited by the limiting mechanism.
In this embodiment, preferably, two side sliding blocks are fixed on both side surfaces of the push pin 13, side sliding grooves are formed on both side inner walls of the rectangular pin groove 16, and the side sliding blocks are located in the side sliding grooves, so that the push pin 13 can be smoothly pushed up and down.
In this embodiment, preferably, the inner walls of the two sides of the through hole are both provided with arc-shaped protrusions welded and fixed with the limiting seat 17 with the hole, and the surfaces of the two sides of the top end of the push pin 13 are both provided with arc-shaped recesses corresponding to the arc-shaped protrusions, so that the top end of the push pin 13 can be limited after being pushed into the through hole.
In this embodiment, it is preferable that a rectangular push hole 14 is formed through the surface of the push pin 13, so that the push pin 13 can be easily pushed up and down, and both the push pin 13 and the hemispherical protrusion 15 are made of an elastic material, where the elastic material is rubber.
In this embodiment, preferably, two arc walls corresponding to the filter tank 2 are provided on the front surface of the rear stay bar 3 relative to the bilateral symmetry of the rectangular mounting opening, a first arc pad is fixed in the arc wall, the first arc pad is tightly attached to the filter tank 2, a second arc pad is fixed on the inner wall of the fixing clamp 4, the first arc pad and the second arc pad are made of rubber, and the second arc pad is tightly attached to the filter tank 2, so that the filter tank 2 can be fixed and more stable.
In this embodiment, preferably, two side legs are symmetrically fixed to the bottom end of the foundation pillar 7, and the side legs are fixed in the rectangular mounting opening through bolts.
The working principle and the using process of the invention are as follows: when an operator needs to detach the filter tank 2 for maintenance, the nut 11 at the top end of the threaded rod 10 is rotated and screwed off, then the fixing clamp 4 is pulled forward, so that the inner sliding block 12 slides inside the inner sliding groove 9 until the fixing clamp 4 can slide right ahead of the filter tank 2, then the cylindrical block 5 is rotated ninety degrees, so that the two fixing clamps 4 can not block the filter tank 2 any more, and the two fixing clamps 4 can be aligned with the gap between the two filter tanks 2, at the moment, the filter tank 2 is not fixed and blocked by the fixing clamp 4, the filter tank 2 can be directly detached for maintenance operation, when the filter tank 2 is subsequently installed, the two filter tanks 2 are firstly placed inside the rack 1, and the two filter tanks 2 can be respectively pushed into the arc-shaped grooves on the surface of the rear support rod 3, then the fixing clamp 4 is pulled forward and rotated, so that the two fixing clamps 4 can be respectively aligned with the two filter tanks 2, then, the cylindrical block 5 is pushed forwards, so that the fixing clamp 4 can be sleeved on the surface of the filter tank 2, the top end of the threaded rod 10 can penetrate through the rear surface of the rear support rod 3, then the nut 11 is sleeved on the end part of the threaded rod 10 and is screwed in a rotating manner, so that the fixing clamp 4 compresses and fixes the filter tank 2, the filter tank 2 can be fixed, the filter tank 2 can be rapidly installed and detached on the inner side of the rack 1, and the stability after installation is improved;
when operating personnel will operate the rotatory ninety degrees of cabinet door 6 and open and overhaul operation cabinet inside, can be with operation cabinet door 6 direct rotation, cause operation cabinet door 6 perpendicular with frame 1, and make to promote 13 and align with foraminiferous spacing seat 17, then will promote the hard push-up of 13, the perforation that the top that causes to promote 13 can insert foraminiferous spacing seat 17 inboard, and make the protruding 15 card of hemisphere go into the draw-in groove of perforation inner wall, can accomplish to promote 13 and be connected with the block of foraminiferous spacing seat 17, and play limiting displacement to operation cabinet door 6 through promoting 13 and foraminiferous spacing seat 17, prevent that operation cabinet door 6 swing back and forth from causing the hindrance for the maintenance operation, thereby improve maintenance efficiency, only need will promote 13 power down to the inboard of rectangle cotter 16 after the follow-up maintenance finishes, can be normal with operation cabinet door 6 spin closure.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a pure water filter equipment for LCD screen cleaning machine, includes frame (1) and sets up two filter tank (2) in frame (1) inboard, the inboard of frame (1) is provided with the operation cabinet for one side of two filter tank (2), and the front surface swivelling joint of operation cabinet has operation cabinet door (6), its characterized in that: the inner wall of the rack (1) is fixed with two rear supporting rods (3) relative to the rear parts of the two filtering tanks (2), the centers of the rear supporting rods (3) are provided with rectangular mounting openings, the rectangular mounting openings are internally fixed with base columns (7), the top ends of the base columns (7) are connected with cylindrical blocks (5), two sides of each cylindrical block (5) are fixed with two fixing clamps (4), the two fixing clamps (4) are respectively sleeved on the surfaces of the two filtering tanks (2), the base columns (7) are internally provided with inner sliding chutes (9), the inner sliding chutes (9) are internally provided with inner sliding rods (8) and inner sliding blocks (12) which are fixedly connected, the top ends of the inner sliding rods (8) penetrate through the top ends of the base columns (7) and are welded and fixed with the cylindrical blocks (5), one sides of the inner sliding blocks (12) are fixedly provided with threaded rods (10) penetrating through the rear surfaces of the rear supporting rods (3), and the top end of the threaded rod (10) is sleeved with a nut (11), and the nut (11) is tightly attached to the rear surface of the rear support rod (3).
2. The pure water filtering device for the liquid crystal screen cleaning machine according to claim 1, characterized in that: a limiting mechanism is arranged between the operation cabinet door (6) and the rack (1), the limiting mechanism comprises a rectangular pin groove (16) formed in the front surface of the operation cabinet door (6), a pushing pin (13) is connected to the inner side of the rectangular pin groove (16) in a sliding mode, a perforated limiting seat (17) corresponding to the pushing pin (13) is fixed on the front surface of the rack (1), and a through hole corresponding to the pushing pin (13) is formed in the perforated limiting seat (17) in a penetrating mode.
3. The pure water filtering device for the liquid crystal screen cleaning machine according to claim 2, characterized in that: two side sliding blocks are fixed on the surfaces of the two sides of the pushing pin (13), side sliding grooves are formed in the inner walls of the two sides of the rectangular pin groove (16), and the side sliding blocks are located in the side sliding grooves.
4. The pure water filtering device for the liquid crystal screen cleaning machine according to claim 2, characterized in that: the top surface of the push pin (13) is provided with an integrated hemispherical protrusion (15), and the inner wall of the through hole is provided with a clamping groove corresponding to the hemispherical protrusion (15).
5. The pure water filtering device for the liquid crystal screen cleaning machine according to claim 4, characterized in that: rectangular push holes (14) are formed in the surface of the push pins (13) in a penetrating mode, and the push pins (13) and the hemispherical bulges (15) are made of elastic materials.
6. The pure water filtering device for the liquid crystal screen cleaning machine according to claim 1, characterized in that: two arc grooves corresponding to the filter tanks (2) are symmetrically formed in the front surface of the rear support rod (3) relative to the two sides of the rectangular mounting opening, first arc cushions are fixed in the arc grooves and are tightly attached to the filter tanks (2).
7. The pure water filtering device for the liquid crystal screen cleaning machine according to claim 1, characterized in that: the inner wall of the fixing clamp (4) is fixed with a second arc-shaped pad, and the second arc-shaped pad is tightly attached to the filtering tank (2).
8. The pure water filtering device for the liquid crystal screen cleaning machine according to claim 1, characterized in that: two side legs are symmetrically fixed to the bottom end of the foundation column (7), and the side legs are fixed in the rectangular mounting port through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110011064.1A CN112755619A (en) | 2021-01-06 | 2021-01-06 | Pure water filtering device for liquid crystal screen cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110011064.1A CN112755619A (en) | 2021-01-06 | 2021-01-06 | Pure water filtering device for liquid crystal screen cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112755619A true CN112755619A (en) | 2021-05-07 |
Family
ID=75699800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110011064.1A Pending CN112755619A (en) | 2021-01-06 | 2021-01-06 | Pure water filtering device for liquid crystal screen cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112755619A (en) |
-
2021
- 2021-01-06 CN CN202110011064.1A patent/CN112755619A/en active Pending
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