CN214714881U - Automatic back flush blowdown water filter of plumbing - Google Patents
Automatic back flush blowdown water filter of plumbing Download PDFInfo
- Publication number
- CN214714881U CN214714881U CN202120101935.4U CN202120101935U CN214714881U CN 214714881 U CN214714881 U CN 214714881U CN 202120101935 U CN202120101935 U CN 202120101935U CN 214714881 U CN214714881 U CN 214714881U
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- screen cylinder
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- connecting flange
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000009428 plumbing Methods 0.000 title abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000010865 sewage Substances 0.000 claims description 21
- 239000002893 slag Substances 0.000 claims description 16
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 238000011001 backwashing Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 17
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 17
- 241001330002 Bambuseae Species 0.000 abstract description 17
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 17
- 239000011425 bamboo Substances 0.000 abstract description 17
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Abstract
The utility model provides an automatic back flush blowdown water filter of plumbing, include: the body, the water outlet and the front section of filter screen cylinder; the body is cylindrical, and a circular pipe-shaped water outlet is welded on the outer cylinder wall at the rear end of the body; the left end of the body is in a conical shape, and connecting flanges are welded on the left end and the right end of the body; a cylindrical front-section filter screen cylinder is sleeved on the left side in the body, and the left end of the front-section filter screen cylinder is arranged outside the body; the utility model has the advantages of rational in infrastructure, conveniently change a filter screen section of thick bamboo, reduce the cost expenditure of enterprise, be difficult for blockking up, filtration efficiency is higher, conveniently changes the brush to effectual solution the utility model provides a problem and not enough.
Description
Technical Field
The utility model relates to a sewage treatment technical field, more specifically the theory that says so especially relates to an automatic back flush sewage filter of plumbing.
Background
The water supply and drainage automatic back-flushing sewage discharge filter can be used for filtering light chemical industry wastewater and circulating water such as industrial water, seawater, food, pharmacy and the like, filtering treatment of emulsion regeneration, waste oil, liquid raw materials and the like. When the sewage is discharged, the handle is transferred to be closed, the valve plate is in a closed position, and the sewage discharge valve is opened. Receive blockking of valve plate, rivers are whole from straining a section of thick bamboo anterior segment from inside to outside flow, because the drain is opened, back end water discharge back pressure reduces, and partial rivers are from straining a section of thick bamboo outside-to-inside flow, wash the filth of adhesion on straining a section of thick bamboo, reach the effect that the back flush was strained. After the blowdown is finished, close the blowoff valve, transport the handle to "open", the valve plate is in the open mode again, and the filter normally works. Because the sewage discharge port is small, the water flow is relatively small, the sewage discharge time is short, and the influence on the normal operation of the system is not large during sewage discharge, therefore, the integrated sewage discharge is not needed. The backwashing filter produced by our company is composed of a high-quality carbon steel cylinder, a stainless steel wedge-shaped filter screen with a special structure, a butterfly valve and a sewage draining device. When the filter cartridge normally works, the valve plate is in the opening position, the drain outlet is closed, water flows outwards from the inside of the filter cartridge, dirt is intercepted by the filter cartridge, and water is normally filtered in a concentrated mode at the rear section.
Most of filter screens inside the existing water supply and drainage automatic back-flushing sewage filter are welded on the inner wall of the filter, and the filter needs to be replaced wholly after the filter screens are damaged, so that the expenditure cost of enterprises is increased.
In view of the above, the present invention provides a sewage filter for automatic backwashing of water supply and drainage, which aims to solve the problems and improve the practical value.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic back flush sewage filter of plumbing to solve the problem and not enough that provide in the above-mentioned background art.
In order to achieve the above purpose, the utility model provides an automatic back flush sewage filter of plumbing, by following concrete technical means reach:
a water supply and drainage automatic back flushing sewage filter comprises: the device comprises a body, a water outlet, a front section filter screen cylinder, a water inlet, a rear section filter screen cylinder, a water flow guide valve, a rear baffle, a rotating shaft, a brush, a motor base, a slag discharge port, a connecting flange, a sleeving ring and a matching hole; the body is cylindrical, and a circular pipe-shaped water outlet is welded on the outer cylinder wall at the rear end of the body; the left end of the body is in a conical shape, and connecting flanges are welded on the left end and the right end of the body; a cylindrical front-section filter screen cylinder is sleeved on the left side in the body, and the left end of the front-section filter screen cylinder is arranged outside the body; the left end of the front section of the filter screen cylinder is welded with a connecting flange, and the connecting flange is superposed on the connecting flange at the left end of the body; the left end of the front section of filter screen cylinder is provided with a circular pipe-shaped water inlet, and the left end and the right end of the water inlet are both welded with a connecting flange; the connecting flange at the right end of the water inlet is superposed on the connecting flange at the left end of the front-section filter screen cylinder, and the connecting flange at the right end of the water inlet is connected with the connecting flange at the left end of the front-section filter screen cylinder and the connecting flange at the left end of the body in a bolt fixing mode; a cylindrical rear-section filter screen cylinder is sleeved on the right side in the body, and the rear-section filter screen cylinder is concentric with the front-section filter screen cylinder; the left end of the rear section of filter screen cylinder is welded with a sleeve ring in a barrel shape, and the right end of the front section of filter screen cylinder is embedded in the sleeve ring; a water flow guide valve is arranged between the rear-section filter screen cylinder and the front-section filter screen cylinder, and a valve clack of the water flow guide valve is arranged inside the joint of the rear-section filter screen cylinder and the front-section filter screen cylinder; a matching hole is formed at the joint of the rear section filter screen cylinder and the front section filter screen cylinder, a valve rod of the water flow guide valve penetrates through the inner side of the matching hole, and two ends of the valve rod of the water flow guide valve are rotatably connected with the body through bearings; the right end of the rear-section filter screen cylinder is welded with a connecting flange, and the connecting flange is superposed on the connecting flange at the right end of the body; the rear end of the rear-section filter screen cylinder is provided with a circular rear baffle which is superposed on a connecting flange at the right end of the rear-section filter screen cylinder, and the rear baffle is connected with the connecting flange at the right end of the rear-section filter screen cylinder and the connecting flange at the right end of the body in a bolt fixing mode; the axial lead position of the rear-section filter screen cylinder is provided with a circular rotating shaft, and the right end of the rotating shaft is rotatably connected to the middle position of the rear baffle plate through a bearing; a plurality of rectangular brushes are fixed on the side surface of the rotating shaft through bolts, and the bristles of the brushes are movably connected with the inner cylinder wall of the rear-section filter screen cylinder; the right end of the rotating shaft protrudes rightwards to the right end of the rear baffle plate, and the right end of the rotating shaft is in transmission connection with an output shaft of the motor through a gear; the motor is fixed on an Jiong-shaped motor base through bolts, and the motor base is welded at the right end of the rear baffle; an L-shaped tubular slag discharge port is arranged below the motor base, and the left end of the slag discharge port is welded on the rear baffle; the slag discharge port is communicated with the inside of the rear-section filter screen cylinder, and the right end of the slag discharge port faces downwards vertically.
As a further optimization of the technical scheme, the utility model relates to an automatic back flush blowdown water filter of plumbing the right-hand member that the cover connects the ring and the anterior segment filter screen section of thick bamboo is clearance fit.
As the further optimization of this technical scheme, the utility model relates to an automatic back flush blowdown water filter of plumbing the mating holes is circular through-hole form, and the mating holes is clearance fit with the valve rod of rivers guide valve.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
1. the utility model discloses a flange that sets up the water inlet right-hand member is connected through the bolt fastening mode with the flange of anterior segment filter screen section of thick bamboo left end and the flange of body left end, and the flange through setting up backplate and back end filter screen section of thick bamboo right-hand member and the flange of body right-hand member is connected through the bolt fastening mode, and anterior segment filter screen section of thick bamboo is connected through cup jointing the ring with the back end filter screen section of thick bamboo, it is comparatively convenient with the dismantlement installation of back end filter screen section of thick bamboo to make an anterior segment filter screen section of thick bamboo, it is convenient more smooth, and through the mode of changing the filter screen section of thick bamboo, the effectual expenditure cost that reduces the enterprise.
2. The utility model discloses a set up the brush for the difficult jam of back end filter screen section of thick bamboo, filtration efficiency is higher, and brush and pivot bolted connection, and the backplate passes through flange with the body to be connected, and the brush is changed to the square plate.
3. The utility model discloses an to the improvement of an automatic back flush blowdown water filter of plumbing, it is rational in infrastructure to have, conveniently changes a filter screen section of thick bamboo, reduces the cost expenditure of enterprise, and difficult jam, filtration efficiency is higher, conveniently changes the advantage of brush to effectual solution the utility model discloses the problem that proposes in background art one with not enough.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the explosion structure of the front section filter screen cylinder and the rear end filter screen of the present invention;
fig. 3 is a left side view structure schematic diagram of the rear-section filter screen cylinder of the utility model.
In the figure: the device comprises a body 1, a water outlet 2, a front section filter screen cylinder 3, a water inlet 4, a rear section filter screen cylinder 5, a water flow guide valve 6, a rear baffle 7, a rotating shaft 8, a brush 9, a motor 10, a motor base 11, a slag discharge port 12, a connecting flange 101, a sleeve ring 501 and a matching hole 601.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
It is to be noted that, in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, the utility model provides a specific technical implementation of a water supply and drainage automatic back-flushing sewage filter:
a water supply and drainage automatic back flushing sewage filter comprises: the device comprises a body 1, a water outlet 2, a front section filter screen cylinder 3, a water inlet 4, a rear section filter screen cylinder 5, a water flow guide valve 6, a rear baffle 7, a rotating shaft 8, a brush 9, a motor 10, a motor base 11, a slag discharge port 12, a connecting flange 101, a socket ring 501 and a matching hole 601; the body 1 is cylindrical, and a circular pipe-shaped water outlet 2 is welded on the outer cylinder wall at the rear end of the body 1; the left end of the body 1 is in a conical shape, and the left end and the right end of the body 1 are both welded with connecting flanges 101; a cylindrical front-section filter screen cylinder 3 is sleeved on the left side inside the body 1, and the left end of the front-section filter screen cylinder 3 is arranged outside the body 1; the left end of the front section of the filter screen cylinder 3 is welded with a connecting flange 101, and the connecting flange 101 is superposed on the connecting flange 101 at the left end of the body 1; a circular pipe-shaped water inlet 4 is formed in the left end of the front section of filter screen cylinder 3, and connecting flanges 101 are welded to the left end and the right end of the water inlet 4; the connecting flange 101 at the right end of the water inlet 4 is superposed on the connecting flange 101 at the left end of the front section filter screen cylinder 3, and the connecting flange 101 at the right end of the water inlet 4 is connected with the connecting flange 101 at the left end of the front section filter screen cylinder 3 and the connecting flange 101 at the left end of the body 1 in a bolt fixing mode; a cylindrical rear-section filter screen cylinder 5 is sleeved on the right side in the body 1, and the rear-section filter screen cylinder 5 is concentric with the front-section filter screen cylinder 3; a sleeve ring 501 in a barrel shape is welded at the left end of the rear section filter screen cylinder 5, and the right end of the front section filter screen cylinder 3 is embedded in the sleeve ring 501; a water flow guide valve 6 is arranged between the rear section filter screen cylinder 5 and the front section filter screen cylinder 3, and a valve clack of the water flow guide valve 6 is arranged inside the joint of the rear section filter screen cylinder 5 and the front section filter screen cylinder 3; a matching hole 601 is formed at the joint of the rear section filter screen cylinder 5 and the front section filter screen cylinder 3, a valve rod of the water flow guide valve 6 penetrates through the inner side of the matching hole 601, and two ends of the valve rod of the water flow guide valve 6 are rotatably connected with the body 1 through bearings; the right end of the rear-section filter screen cylinder 5 is welded with a connecting flange 101, and the connecting flange 101 is superposed on the connecting flange 101 at the right end of the body 1; the right end of the rear-section filter screen cylinder 5 is provided with a circular rear baffle 7, the rear baffle 7 is superposed on a connecting flange 101 at the right end of the rear-section filter screen cylinder 5, and the rear baffle 7 is connected with the connecting flange 101 at the right end of the rear-section filter screen cylinder 5 and the connecting flange 101 at the right end of the body 1 in a bolt fixing mode; a circular rotating shaft 8 is arranged at the axis line position of the rear-section filter screen cylinder 5, and the right end of the rotating shaft 8 is rotatably connected to the middle position of the rear baffle 7 through a bearing; a plurality of rectangular brushes 9 are fixed on the side surface of the rotating shaft 8 through bolts, and the bristles of the brushes 9 are movably connected with the inner cylinder wall of the rear-section filter screen cylinder 5; the right end of the rotating shaft 8 protrudes rightwards to the right end of the rear baffle 7, and the right end of the rotating shaft 8 is in transmission connection with an output shaft of the motor 10 through a gear; the motor 10 is fixed on an Jiong-shaped motor base 11 through bolts, and the motor base 11 is welded on the right end of the rear baffle 7; an L-shaped tubular slag discharge port 12 is arranged below the motor base 11, and the left end of the slag discharge port 12 is welded on the rear baffle 7; the slag discharge port 12 is communicated with the inside of the rear-section filter screen cylinder 5, and the right end of the slag discharge port 12 faces downwards vertically.
Specifically, referring to fig. 1, the coupling ring 501 is in clearance fit with the right end of the front section of filter screen drum 3, the front section of filter screen drum 3 and the rear section of filter screen drum 5 are installed inside the body 1, and the right end of the front section of filter screen drum 3 is embedded inside the coupling ring 501.
Specifically, referring to fig. 2, the fitting hole 601 is a circular through hole, and referring to fig. 1, the fitting hole 601 is in clearance fit with the valve stem of the water flow guide valve 6.
The method comprises the following specific implementation steps:
the connecting flange 101 at the right end of the water inlet 4 is connected with the connecting flange 101 at the left end of the front section filter screen cylinder 3 and the connecting flange 101 at the left end of the body 1 in a bolt fixing mode, the rear baffle 7 is connected with the connecting flange 101 at the right end of the rear section filter screen cylinder 5 and the connecting flange 101 at the right end of the body 1 in a bolt fixing mode, the front section filter screen cylinder 3 is connected with the rear section filter screen cylinder 5 through a sleeving ring 501, so that the front section filter screen cylinder 3 and the rear section filter screen cylinder 5 are convenient to disassemble and install, the filter screen cylinders are convenient to slide, and the expenditure cost of enterprises is effectively reduced by replacing filter screens; during filtration, the motor 10 circular telegram work drives the pivot 8 through gear drive mode and rotates, and brush 9 in the pivot 8 brushes the inner tube wall of rear segment filter screen section of thick bamboo 5 for rear segment filter screen section of thick bamboo 5 is difficult for blockking up, and filtration efficiency is higher.
In summary, the following steps: the automatic back-flushing sewage discharge filter for water supply and drainage is characterized in that a connecting flange at the right end of a water inlet is connected with a connecting flange at the left end of a front-section filter screen cylinder and a connecting flange at the left end of a body in a bolt fixing mode, a rear baffle is connected with a connecting flange at the right end of a rear-section filter screen cylinder and a connecting flange at the right end of the body in a bolt fixing mode, and the front-section filter screen cylinder is connected with the rear-section filter screen cylinder through a sleeving ring, so that the front-section filter screen cylinder and the rear-section filter screen cylinder are convenient and smooth to disassemble and install, and the expenditure cost of an enterprise is effectively reduced by replacing the filter screen cylinders; the rear-section filter screen cylinder is not easy to block and has higher filtering efficiency by arranging the brush, the brush is connected with the rotating shaft through the bolt, the rear baffle is connected with the body through the connecting flange, and the brush is replaced by the square plate; the utility model discloses an to the improvement of the automatic back flush blowdown water filter of plumbing, it is rational in infrastructure to have, conveniently changes a filter screen section of thick bamboo, reduces the cost expenditure of enterprise, is difficult for blockking up, and filtration efficiency is higher, conveniently changes the advantage of brush to effectual solution the utility model provides a problem and not enough.
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 (3)
1. A water supply and drainage automatic back flushing sewage filter comprises: the device comprises a body (1), a water outlet (2), a front section filter screen cylinder (3), a water inlet (4), a rear section filter screen cylinder (5), a water flow guide valve (6), a rear baffle (7), a rotating shaft (8), a brush (9), a motor (10), a motor base (11), a slag discharge port (12), a connecting flange (101), a sleeve ring (501) and a matching hole (601); the method is characterized in that: the body (1) is cylindrical, and a circular-tube-shaped water outlet (2) is welded on the outer cylinder wall at the rear end of the body (1); the left end of the body (1) is conical, and connecting flanges (101) are welded at the left end and the right end of the body (1); a cylindrical front-section filter screen cylinder (3) is sleeved on the left side in the body (1), and the left end of the front-section filter screen cylinder (3) is arranged outside the body (1); a connecting flange (101) is welded at the left end of the front section of filter screen cylinder (3), and the connecting flange (101) is superposed on the connecting flange (101) at the left end of the body (1); a circular pipe-shaped water inlet (4) is formed in the left end of the front section of filtering screen cylinder (3), and connecting flanges (101) are welded at the left end and the right end of the water inlet (4); the connecting flange (101) at the right end of the water inlet (4) is superposed on the connecting flange (101) at the left end of the front section of filter screen cylinder (3), and the connecting flange (101) at the right end of the water inlet (4) is connected with the connecting flange (101) at the left end of the front section of filter screen cylinder (3) and the connecting flange (101) at the left end of the body (1) in a bolt fixing mode; a cylindrical rear-section filter screen cylinder (5) is sleeved on the right side in the body (1), and the rear-section filter screen cylinder (5) is concentric with the front-section filter screen cylinder (3); the left end of the rear section of filter screen cylinder (5) is welded with a cylindrical sleeve ring (501), and the right end of the front section of filter screen cylinder (3) is embedded in the sleeve ring (501); a water flow guide valve (6) is arranged between the rear section filter screen cylinder (5) and the front section filter screen cylinder (3), and a valve clack of the water flow guide valve (6) is arranged inside the joint of the rear section filter screen cylinder (5) and the front section filter screen cylinder (3); a matching hole (601) is formed in the joint of the rear section filter screen cylinder (5) and the front section filter screen cylinder (3), a valve rod of the water flow guide valve (6) penetrates through the inner side of the matching hole (601), and two ends of the valve rod of the water flow guide valve (6) are rotatably connected with the body (1) through bearings; a connecting flange (101) is welded at the right end of the rear-section filter screen cylinder (5), and the connecting flange (101) is superposed on the connecting flange (101) at the right end of the body (1); the right end of the rear-section filter screen cylinder (5) is provided with a circular rear baffle (7), the rear baffle (7) is superposed on a connecting flange (101) at the right end of the rear-section filter screen cylinder (5), and the rear baffle (7) is connected with the connecting flange (101) at the right end of the rear-section filter screen cylinder (5) and the connecting flange (101) at the right end of the body (1) in a bolt fixing mode; a circular rotating shaft (8) is arranged at the axis position of the rear-section filter screen cylinder (5), and the right end of the rotating shaft (8) is rotatably connected to the middle position of the rear baffle (7) through a bearing; a plurality of rectangular brushes (9) are fixed on the side surface of the rotating shaft (8) through bolts, and the bristles of the brushes (9) are movably connected with the inner cylinder wall of the rear-section filter screen cylinder (5); the right end of the rotating shaft (8) protrudes rightwards to the right end of the rear baffle (7), and the right end of the rotating shaft (8) is in transmission connection with an output shaft of the motor (10) through a gear; the motor (10) is fixed on an Jiong-shaped motor base (11) through bolts, and the motor base (11) is welded at the right end of the rear baffle (7); an L-shaped tubular slag discharge port (12) is arranged below the motor base (11), and the left end of the slag discharge port (12) is welded on the rear baffle (7); the slag discharge port (12) is communicated with the inside of the rear-section filter screen cylinder (5), and the right end of the slag discharge port (12) faces downwards vertically.
2. The automatic backwashing sewage filter for water supply and drainage as claimed in claim 1, wherein: the sleeve joint ring (501) is in clearance fit with the right end of the front section of filter screen cylinder (3).
3. The automatic backwashing sewage filter for water supply and drainage as claimed in claim 1, wherein: the matching hole (601) is in a circular through hole shape, and the matching hole (601) is in clearance fit with a valve rod of the water flow guide valve (6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202120101935.4U CN214714881U (en) | 2021-01-15 | 2021-01-15 | Automatic back flush blowdown water filter of plumbing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202120101935.4U CN214714881U (en) | 2021-01-15 | 2021-01-15 | Automatic back flush blowdown water filter of plumbing |
Publications (1)
Publication Number | Publication Date |
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CN214714881U true CN214714881U (en) | 2021-11-16 |
Family
ID=78639262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202120101935.4U Expired - Fee Related CN214714881U (en) | 2021-01-15 | 2021-01-15 | Automatic back flush blowdown water filter of plumbing |
Country Status (1)
Country | Link |
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CN (1) | CN214714881U (en) |
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2021
- 2021-01-15 CN CN202120101935.4U patent/CN214714881U/en not_active Expired - Fee Related
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CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20211116 |