CN113883314A - Electric pressure reducing valve - Google Patents
Electric pressure reducing valve Download PDFInfo
- Publication number
- CN113883314A CN113883314A CN202111244845.1A CN202111244845A CN113883314A CN 113883314 A CN113883314 A CN 113883314A CN 202111244845 A CN202111244845 A CN 202111244845A CN 113883314 A CN113883314 A CN 113883314A
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- China
- Prior art keywords
- pressure reducing
- valve
- reducing valve
- fixedly connected
- valve cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 238000009434 installation Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention provides an electric pressure reducing valve. The electric pressure reducing valve includes: a main valve; the valve gap connecting seat, the valve gap connecting seat sets up in the top of main valve intercommunication mouth, first valve gap and second valve gap are installed in proper order by lower up in the top of valve gap connecting seat, two mounting grooves have been seted up to the inside of first valve gap, two the equal fixedly connected with extension pipe in inside of mounting groove, the first connecting block of top fixedly connected with of extension pipe. The electric pressure reducing valve provided by the invention has the advantages that when equipment failure personnel need to overhaul and replace the spring, the mounting block can be directly rotated to drive the fixing block to take out the spring, the mounting mode enables the personnel to overhaul and replace the spring without disassembling the whole pressure reducing valve, the pressure reducing valve can be overhauled and replaced under the condition that the pressure reducing valve works, the pressure reducing valve is not influenced by short-time operation, and the working efficiency and convenience of overhauling the pressure reducing valve are effectively improved.
Description
Technical Field
The invention relates to the field of pressure reducing valves, in particular to an electric pressure reducing valve.
Background
The pressure reducing valve that artifical regulation was replaced in the appearance of electric pressure reducing valve for the pressure reducing valve can be automatic adjust, personnel only need set up data can, the effectual amount of labour that has reduced personnel's work, and electric regulation's pressure reducing valve is adjusted, the control of water pressure and flow is more accurate.
The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by regulation and automatically keeps the outlet pressure stable by the energy of a medium, and from the viewpoint of hydromechanics, the pressure reducing valve is a throttling element with changeable local resistance, namely, the flow rate and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction, and then the fluctuation of the pressure behind the valve is balanced with the spring force by the regulation of a control and regulation system, so that the pressure behind the valve is kept constant within a certain error range.
When current most relief pressure valve produced the trouble, can meet unstable pressure, pressure runout is big, sometimes the noise is big, pilot valve spring (pressure regulating spring) misassembly becomes soft spring, the fatigue production permanent deformation of spring or circumstances such as rupture, when these circumstances produced, the majority need carry out the maintenance or the change of spring, and the outside of adjusting the pole is located to the cover again to the pressure reducing spring majority of current relief pressure valve, therefore comparatively loaded down with trivial details when carrying out the change of pressure regulating spring, need shut down and dismantle the whole shell of relief pressure valve, just can open the change that the relief pressure valve carried out the spring.
Therefore, it is necessary to provide an electric pressure reducing valve to solve the above-mentioned technical problems.
Disclosure of Invention
The invention provides an electric pressure reducing valve, which solves the problem that most of springs of the existing pressure reducing valves are troublesome to maintain and replace.
In order to solve the above technical problem, the present invention provides an electric pressure reducing valve including: a main valve;
the valve cover connecting seat is arranged at the top of the main valve communicating opening, a first valve cover and a second valve cover are sequentially arranged at the top of the valve cover connecting seat from bottom to top, two mounting grooves are formed in the first valve cover, extension pipes are fixedly connected to the insides of the two mounting grooves, a first connecting block is fixedly connected to the top end of each extension pipe, an extension groove is formed in the extension pipe, and a first thread groove is formed in the first connecting block;
the mounting block is connected to the inside of the first thread groove through external threads, the bottom of the mounting block is fixedly connected with a second connecting block, and a second thread groove is formed in the bottom of the second connecting block;
the fixed block, the fixed block passes through the inside of outside screw thread threaded connection in second thread groove, the bottom fixedly connected with spring of fixed block, the bayonet socket setting at main valve top of valve gap connecting seat mode through welding or joint, first thread groove communicates with the extension groove mutually, first thread groove is the T style of calligraphy.
Preferably, the valve cover connecting seat, the first valve cover and the second valve cover are integrated to form the valve cover of the pressure reducing valve, and the valve cover connecting seat, the first valve cover and the second valve cover are sequentially arranged in the diameter sequence from large to small.
Preferably, the movable groove has been seted up at the top of second valve gap, the internally mounted in movable groove has electric pole, the pull rod is installed to electric pole's bottom, electric pole can be current telescoping device such as electric telescopic handle, hydraulic stem, pneumatic rod, electric pole and main valve clack are connected to the pull rod.
Preferably, the bottom of the pull rod is fixedly connected with a connecting seat, the bottom of the connecting seat is fixedly connected with a main valve clack, and the top of the connecting seat is in contact with the bottom end of the spring.
Preferably, the left side and the right side of the outer portion of the main valve are both fixedly connected with a connecting ring, a plurality of threaded holes are formed in the connecting ring, and the connecting ring is used for connecting the main valve with a water source pipeline and a user pipeline.
Preferably, a water inlet hole is formed in the left side of the main valve, a water outlet hole is formed in the right side of the main valve, the water outlet hole is used for discharging a water source decompressed through the pressure reducer, the water inlet hole is connected with a water source pipeline, and the water outlet hole end is connected with a user pipeline.
Preferably, the top fixedly connected with of installation piece rotates the handle, it is T style of calligraphy to rotate the handle, it is used for making things convenient for personnel to rotate the installation piece to rotate the handle to rotate.
Preferably, four spacing rings of inside fixedly connected with of inlet opening, the spread groove has all been seted up to the inside of four spacing rings, four the thickness of spacing ring all is less than the cambered surface, all is used for restricting the removal of guard ring, the spread groove is used for the joint to extend the circle.
Preferably, the inside of spread groove has the guard ring through extending the ring joint, the thickness and the spread groove phase-match of guard ring.
Preferably, the left side of guard ring has seted up the cambered surface, the cambered surface is used for the high-pressure water source of steady transition, avoids the too big impact guard ring of water source impact force.
Compared with the related art, the electric pressure reducing valve provided by the invention has the following beneficial effects:
the invention provides an electric pressure reducing valve, wherein two mounting grooves are formed in the top of a first valve cover, extension pipes are arranged in the two mounting grooves, a first connecting block is arranged at the top end of each extension pipe, a second connecting block connected with the mounting blocks is arranged at the same time, and springs are connected and mounted through fixing blocks, so that the springs are not positioned outside an adjusting rod, the two springs are additionally arranged, when equipment failure personnel need to overhaul and replace the springs, the mounting blocks can be directly rotated to drive the fixing blocks to take out the springs, the mounting mode enables the personnel to overhaul and replace the springs without disassembling the whole pressure reducing valve, the pressure reducing valve can be overhauled and replaced under the condition that the pressure reducing valve works, the pressure reducing valve cannot be affected by short-time operation, and the working efficiency and convenience of overhaul of the pressure reducing valve are effectively improved.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of an electrically operated pressure reducing valve according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic diagram of a second embodiment of an electric pressure reducing valve according to the present invention;
fig. 4 is a partially enlarged view of fig. 3 at B.
Reference numbers in the figures: 1. the water inlet, 2, main valve clack, 3, the main valve, 4, the connecting ring, 5, the apopore, 6, the pull rod, 7, the connecting seat, 8, the valve gap connecting seat, 9, first valve gap, 10, the mounting groove, 11, the second valve gap, 12, the activity groove, 13, electronic pole, 14, the installation piece, 15, first thread groove, 16, the second thread groove, 17, the extension pipe, 18, the spring, 19, the extension groove, 20, the fixed block, 21, the second connecting block, 22, first connecting block, 23, the rotation handle, 24, the cambered surface, 25, the guard ring, 26, the extension ring, 27, the connecting groove, 28, the spacing ring.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
First embodiment
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an electric pressure reducing valve according to a first embodiment of the present invention; fig. 2 is a partially enlarged view of a portion a in fig. 1. The electric pressure reducing valve includes: a main valve 3;
the valve cover connecting seat 8 is arranged at the top of a communication opening of the main valve 3, a first valve cover 9 and a second valve cover 11 are sequentially installed at the top of the valve cover connecting seat 8 from bottom to top, two installation grooves 10 are formed in the first valve cover 9, extension pipes 17 are fixedly connected to the insides of the two installation grooves 10, a first connecting block 22 is fixedly connected to the top end of each extension pipe 17, an extension groove 19 is formed in each extension pipe 17, and a first thread groove 15 is formed in each first connecting block 22;
the mounting block 14 is connected to the inside of the first thread groove 15 through external threads, a second connecting block 21 is fixedly connected to the bottom of the mounting block 14, and a second thread groove 16 is formed in the bottom of the second connecting block 21;
and the fixing block 20 is in threaded connection with the inside of the second thread groove 16 through external threads, and the spring 18 is fixedly connected to the bottom of the fixing block 20. (valve gap connecting seat 8 is through the bayonet socket setting at main valve 3 top of welding or joint, first thread groove 15 is linked together with extending groove 19, first thread groove 15 is the T style of calligraphy, and the top diameter is greater than the bottom diameter, the diameter of second connecting block 21 is less than extending groove 19, the hole groove of first thread groove 15 bottom and extending groove 19's diameter phase-match.
The valve cover connecting seat 8, the first valve cover 9 and the second valve cover 11 are integrated to form a valve cover of the pressure reducing valve, and the valve cover connecting seat 8, the first valve cover 9 and the second valve cover 11 are sequentially arranged in the diameter sequence from large to small;
the top of the second valve cover 11 is provided with a movable groove 12, an electric rod 13 is installed inside the movable groove 12, the bottom end of the electric rod 13 is provided with a pull rod 6, the electric rod 13 can be an electric telescopic rod, a hydraulic rod, a pneumatic rod and other existing telescopic devices, and the pull rod 6 is connected with the electric rod 13 and the main valve clack 2;
the bottom of the pull rod 6 is fixedly connected with a connecting seat 7, the bottom of the connecting seat 7 is fixedly connected with a main valve clack 2, and the top of the connecting seat 7 is contacted with the bottom end of a spring 18;
the left side and the right side of the outer part of the main valve 3 are both fixedly connected with a connecting ring 4, a plurality of threaded holes are formed in the connecting ring 4, and the connecting ring 4 is used for connecting the main valve 3 with a water source pipeline and a user pipeline;
a water inlet hole 1 is formed in the left side of the main valve 3, a water outlet hole 5 is formed in the right side of the main valve 3, the water inlet hole 1 is used for injecting a high-pressure water source, the water outlet hole 5 is used for discharging the water source decompressed by the decompressor, the water inlet hole 1 is connected with a water source pipeline, and the end of the water outlet hole 5 is connected with a user pipeline;
the top of the mounting block 14 is fixedly connected with a rotating handle 23, the rotating handle 23 is T-shaped, and the rotating handle 23 is used for facilitating a person to rotate the mounting block 14.
The working principle of the electric pressure reducing valve provided by the invention is as follows:
during installation, a valve cover connecting seat 8 is installed at the top of the main valve 3, a first valve cover 9 and a second valve cover 11 are installed at the top of the valve cover connecting seat 8, two installation grooves 10 are formed in the first valve cover 9, extension pipes 17 are installed in the two installation grooves 10, and a first connecting block 22 is arranged at the top ends of the extension pipes 17;
when the spring 18 is installed, the fixing block 20 with the spring 18 installed is rotated into the second thread groove 16 of the second connecting block 21, then the spring 18 and the connecting piece thereof are inserted downwards, then the installing block 14 is rotated, so that the installing block 14 is rotated into the first thread groove 15 of the first connecting block 22 through external threads, and the installation of the spring 18 is completed;
when the pressure reducing valve is in failure and the spring 18 needs to be overhauled and replaced, a person can rotate the rotating handle 23 to drive the mounting block 14 to rotate, take out the mounting block from the inside of the first thread groove 15, then move the mounting block upwards to take out the spring 18, and directly perform replacement operation.
Compared with the related art, the electric pressure reducing valve provided by the invention has the following beneficial effects:
through seting up two mounting grooves 10 at the top of first valve gap 9, extension 17 is all installed in the inside of two mounting grooves 10 simultaneously, and first connecting block 22 of top installation at extension 17, install the second connecting block 21 that piece 14 is connected simultaneously, connect installation spring 18 through fixed block 20, thereby make spring 18 not be in the outside of adjusting the pole, and add and be two springs, when equipment trouble personnel need examine and repair the change to spring 18, thereby can directly rotate installation piece 14 and drive fixed block 20 and take out spring 18, such mounting means makes personnel examine and repair the during operation of changing spring 18, need not to dismantle whole relief pressure valve, and can examine and repair the change under the condition of relief pressure valve work, the operation of short time can not lead to the fact the influence to the relief pressure valve, the effectual work efficiency and the convenience that have improved the relief pressure valve and overhaul.
Second embodiment
Referring to fig. 3 to 4, a second embodiment of the present application provides another electric pressure reducing valve based on the electric pressure reducing valve provided in the first embodiment of the present application. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the electric reducing valve that the second embodiment of this application provided's difference lies in, four spacing rings 28 of inside fixedly connected with of inlet opening 1, spread groove 27, four have all been seted up to four spacing rings 28's inside spacing ring 28's thickness all is less than cambered surface 24, all is used for restricting the removal of guard ring 25, spread groove 27 is used for the joint to extend circle 26 to the position of fixed guard ring 25.
The inside of spread groove 27 has guard ring 25 through extending circle 26 joint, guard ring 25's thickness and spread groove 27 phase-match, and be the rubber material.
The left side of the protection ring 25 is provided with a cambered surface 24, and the cambered surface 24 is used for stably transiting a high-pressure water source to avoid the overlarge impact force of the water source to impact the protection ring 25.
Compared with the related art, the electric pressure reducing valve provided by the invention has the following beneficial effects:
set up spacing ring 28 through the inner wall at 3 connecting tube of main valve, and extend circle 26 and set up guard ring 25 through the inside spread groove 27 joint of spacing ring 28, when making relief pressure valve and water source pipe connection, the part of guard ring 25 enters into inside the water source pipeline, thereby make the water pressure that the water source pipeline pours into when too big, the water source passes through cambered surface 24 and flows into guard ring 25, the junction of contactless relief pressure valve and water source pipeline, thereby the effectual stability ability that improves the pipe connection department, the effectual emergence of having avoided the infiltration phenomenon of leaking, make the relief pressure valve can provide more stable pressure control when using.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An electrically operated pressure reducing valve, comprising: a main valve (3);
the valve cover connecting seat (8) is arranged at the top of a communication opening of the main valve (3), a first valve cover (9) and a second valve cover (11) are sequentially installed at the top of the valve cover connecting seat (8) from bottom to top, two installation grooves (10) are formed in the first valve cover (9), extension pipes (17) are fixedly connected to the interiors of the two installation grooves (10), a first connecting block (22) is fixedly connected to the top ends of the extension pipes (17), extension grooves (19) are formed in the extension pipes (17), and first thread grooves (15) are formed in the first connecting block (22);
the mounting block (14) is connected to the inside of the first thread groove (15) through external threads, a second connecting block (21) is fixedly connected to the bottom of the mounting block (14), and a second thread groove (16) is formed in the bottom of the second connecting block (21);
the fixing block (20) is connected to the inner part of the second thread groove (16) through external threads and threads, and a spring (18) is fixedly connected to the bottom of the fixing block (20).
2. The electric pressure reducing valve according to claim 1, wherein the valve cover connecting seat (8), the first valve cover (9) and the second valve cover (11) are an integral body, which jointly form the valve cover of the pressure reducing valve, and the valve cover connecting seat (8), the first valve cover (9) and the second valve cover (11) are arranged in the order of the diameters from large to small.
3. The electric pressure reducing valve according to claim 1, wherein a movable groove (12) is formed in the top of the second valve cover (11), an electric rod (13) is installed inside the movable groove (12), and a pull rod (6) is installed at the bottom end of the electric rod (13).
4. An electric pressure reducing valve according to claim 3, characterized in that a connecting seat (7) is fixedly connected to the bottom of the tie rod (6), and a main valve flap (2) is fixedly connected to the bottom of the connecting seat (7).
5. The electric pressure reducing valve according to claim 1, wherein a connecting ring (4) is fixedly connected to both left and right sides of the outer portion of the main valve (3), and a plurality of threaded holes are opened in the connecting ring (4).
6. The electric pressure reducing valve according to claim 1, wherein the left side of the main valve (3) is provided with a water inlet hole (1), and the right side of the main valve (3) is provided with a water outlet hole (5).
7. The electric pressure reducing valve according to claim 1, wherein a rotary handle (23) is fixedly connected to the top of the mounting block (14), and the rotary handle (23) is T-shaped.
8. The electric pressure reducing valve according to claim 6, wherein four limiting rings (28) are fixedly connected to the inside of the water inlet hole (1), and connecting grooves (27) are formed in the four limiting rings (28).
9. An electrically operated pressure reducing valve according to claim 8, characterized in that the inside of the connecting groove (27) is snap-fitted with a guard ring (25) by means of an extension ring (26).
10. The electric pressure reducing valve according to claim 9, wherein the guard ring (25) is provided with an arc surface (24) on the left side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111244845.1A CN113883314A (en) | 2021-10-26 | 2021-10-26 | Electric pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111244845.1A CN113883314A (en) | 2021-10-26 | 2021-10-26 | Electric pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113883314A true CN113883314A (en) | 2022-01-04 |
Family
ID=79014187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111244845.1A Pending CN113883314A (en) | 2021-10-26 | 2021-10-26 | Electric pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113883314A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003280746A (en) * | 2002-03-27 | 2003-10-02 | Yoshitake Inc | Steam pressure reducing valve used for steam boiler equipment |
| CN203656402U (en) * | 2014-01-16 | 2014-06-18 | 台州市明利阀门管件有限公司 | Pipe coupling |
| CN208169749U (en) * | 2018-05-22 | 2018-11-30 | 庞德林 | A kind of attachment device of HDPE winding steel pipe |
| CN209354838U (en) * | 2018-12-15 | 2019-09-06 | 苏州欧亚特管业有限公司 | A kind of PE pipe convenient for socket |
| CN210014027U (en) * | 2019-03-12 | 2020-02-04 | 江苏欧瑞德石油机械有限公司 | Throttle valve for oil exploitation device |
| CN210950130U (en) * | 2019-10-23 | 2020-07-07 | 浙江良开阀门有限公司 | Multifunctional water pump control high-pressure valve |
| CN211315274U (en) * | 2020-01-03 | 2020-08-21 | 九通集团有限公司 | Spring type corrosion-resistant safety fluorine lining valve |
| CN211398719U (en) * | 2019-12-16 | 2020-09-01 | 浙江亿斯特阀门有限公司 | Automatic compensation type wear-resistant valve core of electromagnetic valve |
| CN212868536U (en) * | 2020-05-29 | 2021-04-02 | 江苏捷迈斯阀门有限公司 | Ball valve convenient to use |
| CN112717520A (en) * | 2020-12-26 | 2021-04-30 | 新疆碧水源环境资源股份有限公司 | Movable small-sized sewage filtering device for water plant |
| CN113404954A (en) * | 2021-06-21 | 2021-09-17 | 哈尔滨工程大学 | Underwater bolt pre-tightening telescopic connector |
| CN214248610U (en) * | 2021-01-20 | 2021-09-21 | 苏州双阳管业有限公司 | Fast-assembling composite plastic-coated plastic-lined galvanized steel pipe |
-
2021
- 2021-10-26 CN CN202111244845.1A patent/CN113883314A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003280746A (en) * | 2002-03-27 | 2003-10-02 | Yoshitake Inc | Steam pressure reducing valve used for steam boiler equipment |
| CN203656402U (en) * | 2014-01-16 | 2014-06-18 | 台州市明利阀门管件有限公司 | Pipe coupling |
| CN208169749U (en) * | 2018-05-22 | 2018-11-30 | 庞德林 | A kind of attachment device of HDPE winding steel pipe |
| CN209354838U (en) * | 2018-12-15 | 2019-09-06 | 苏州欧亚特管业有限公司 | A kind of PE pipe convenient for socket |
| CN210014027U (en) * | 2019-03-12 | 2020-02-04 | 江苏欧瑞德石油机械有限公司 | Throttle valve for oil exploitation device |
| CN210950130U (en) * | 2019-10-23 | 2020-07-07 | 浙江良开阀门有限公司 | Multifunctional water pump control high-pressure valve |
| CN211398719U (en) * | 2019-12-16 | 2020-09-01 | 浙江亿斯特阀门有限公司 | Automatic compensation type wear-resistant valve core of electromagnetic valve |
| CN211315274U (en) * | 2020-01-03 | 2020-08-21 | 九通集团有限公司 | Spring type corrosion-resistant safety fluorine lining valve |
| CN212868536U (en) * | 2020-05-29 | 2021-04-02 | 江苏捷迈斯阀门有限公司 | Ball valve convenient to use |
| CN112717520A (en) * | 2020-12-26 | 2021-04-30 | 新疆碧水源环境资源股份有限公司 | Movable small-sized sewage filtering device for water plant |
| CN214248610U (en) * | 2021-01-20 | 2021-09-21 | 苏州双阳管业有限公司 | Fast-assembling composite plastic-coated plastic-lined galvanized steel pipe |
| CN113404954A (en) * | 2021-06-21 | 2021-09-17 | 哈尔滨工程大学 | Underwater bolt pre-tightening telescopic connector |
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