CN220012821U - High-efficient portable pipeline test stake is maintained and testing arrangement - Google Patents
High-efficient portable pipeline test stake is maintained and testing arrangement Download PDFInfo
- Publication number
- CN220012821U CN220012821U CN202321544013.6U CN202321544013U CN220012821U CN 220012821 U CN220012821 U CN 220012821U CN 202321544013 U CN202321544013 U CN 202321544013U CN 220012821 U CN220012821 U CN 220012821U
- Authority
- CN
- China
- Prior art keywords
- test
- maintenance
- test pile
- hinge door
- door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 174
- 238000012423 maintenance Methods 0.000 claims abstract description 44
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 12
- 239000011810 insulating material Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000009428 plumbing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004458 analytical method Methods 0.000 abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004210 cathodic protection Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000012937 correction Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000003313 weakening effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a high-efficiency portable pipeline test pile maintenance and test device, which relates to the technical field of cathodic protection, and comprises a pipeline test pile body, a hinge door and a pipe hoop; the hinge door is connected with the test pile body through a pipe hoop, and the pipe hoop sleeves the hinge door and the test pile body; the hinge door is clung to the outer side of the test pile body and seals the side wall pile opening of the test pile body. The scheme is suitable for testing the situation that the pile body is intact and the rust damage of the test part is serious; the portable pipeline test pile maintenance and test device is designed by taking the improvement of the maintenance test pile efficiency, the reduction of the maintenance cost and the weakening of parameter test errors as starting points, realizes the single-person carrying correction, improves the cathode protection parameter test effect, and improves the integrity management level of a cathode protection system and the operation analysis accuracy of the cathode protection system.
Description
Technical Field
The utility model relates to the technical field of cathode protection, in particular to a high-efficiency portable pipeline test pile maintenance and test device.
Background
The pipeline test pile is an important carrier for daily test and periodic detection of cathode protection parameters such as cathode protection potential, current and the like, and is an important component of a pipeline cathode protection system.
At present, in-service current and potential test piles of oil and gas pipelines of southwest oil and gas field companies are mostly steel test piles, and the diameters of test piles are in various specifications of 76mm, 89mm, 100mm and the like. The test stake is in open air environment for a long time, and its stake door is easy corrosion and drops for the hinge door, when the test stake door damages or drops, then can accelerate inside test circuit connecting plate and metal terminal, yin protect the test point corrosion damage, leads to the test result inaccurate, can't accurately judge the cathodic protection state.
The hinge door of the test pile and the test circuit board are the auxiliary structure of the test pile, the hinge door and the test circuit board are easy to damage and high in replacement frequency, and the traditional maintenance mode needs electric welding construction, so that the factors such as material purchase, tool handling and construction technology cause the current situation that the auxiliary structure of the test pile is half-done in maintenance and maintenance.
In summary, the existing test pile has higher maintenance cost, inaccurate test parameters after being corroded, and is unfavorable for the operation analysis of the cathode protection system.
Disclosure of Invention
The utility model aims to solve the defects of the prior art, and aims to provide a high-efficiency portable pipeline test pile maintenance and test device.
The utility model is realized by the following technical scheme:
the high-efficiency portable pipeline test pile maintenance and test device comprises a pipeline test pile body, a hinge door and a pipe hoop;
the hinge door is connected with the test pile body through a pipe hoop, and the pipe hoop sleeves the hinge door and the test pile body;
the hinge door is clung to the outer side of the test pile body and seals the side wall pile opening of the test pile body.
Compared with the prior art, the test pile is in an open environment for a long time, the pile door is easy to rust and drop, when the test pile door is damaged or falls, the internal test circuit connecting plate, the metal binding post and the female protection test point are damaged in a rust manner, the test pile hinge door and the test circuit board are of test pile auxiliary structures, the test pile is easy to damage and high in replacement frequency, the traditional maintenance mode needs electric welding construction, the problems of the current situation that the auxiliary structures of the test pile are half-done in maintenance and maintenance are caused by factors such as material purchase, machine tool carrying and construction technology are solved, and the like.
The hinge door can be obtained by directly adopting a rusted hinge door, cleaning and dismantling the hinge door damaged by the pile body of the test pile through a tool, then connecting the hinge door to the hinge door through the pipe hoop, and opening the hinge door so as to enable the hinge door to be close to the pile body of the test pile, at the moment, sleeving the pipe hoop on the pile body of the test pile, and adjusting the screwing depth of a self-tapping screw of a locking device on the pipe hoop so as to enable the hinge door to be completely fixed on the pile body of the test pile, thereby realizing detachable connection; the whole structure of the hinge door is made of stainless steel materials, the effect of low corrosion rate of the self material is achieved, and the situation that the original steel hinge cannot be normally opened or closed after being corroded can be avoided. Meanwhile, the diameter of the three test piles of 76mm, 89mm and 100mm can be compatible in a stretching mode by utilizing the adjustability of the stainless steel material, so that the device is convenient to adapt to most production scenes. In the scheme, the portable pipeline test pile maintenance and test device is simple in manufacturing process, and common hardware manufacturers can manufacture the portable pipeline test pile maintenance and test device; the manufacturing period is short, and the batch manufacturing cost and quality can be ensured; the novel hinge is convenient to install, only needs to carry a small number of tools such as a screwdriver, a hammer and a wire pliers, can be installed and replaced by one person, reduces future maintenance, and accordingly avoids the situation that the original steel hinge cannot be normally opened and closed after being corroded. The traditional test pile door rectifying mode has obvious comparison effect with the portable maintenance and testing device rectifying mode, and the latter is comprehensively superior to the former.
Further optimized, the upper end and the lower end of the hinge door are both provided with pipe hoops; the hinge door is firmly attached through the pipe hoops at the upper end and the lower end.
Further optimized, the two sides of the outer side wall of the hinge door are provided with fixed blocks, and the fixed blocks are provided with connecting holes for the pipe hoops to pass through; the opening of the hinge door is facilitated.
Further optimized, the hinge door is provided with a sub door for opening and closing the inside of the pile body of the test pile; the sub-door hinged to the hinge door is convenient for installing and maintaining the inside of the pile body of the test pile.
Further optimizing, wherein the sub-door is provided with a triangular lock; the sub-door is opened and closed by a triangular lock.
Further preferably, the sub-door is provided with a mounting hole, a potential test terminal is mounted in the mounting hole, and the potential test terminal is connected with a circuit board in the pile body of the test pile through a connecting wire; the method is used for realizing the yin protection parameter test without opening the door.
Further optimized, the periphery of the potential testing terminal is coated with an insulating material, and the potential testing terminal is connected with the mounting hole through the insulating material; is used for guaranteeing the cathode protection current not to run off.
Further optimized, the circuit board is provided with a plurality of adjusting holes, the adjusting holes are strip holes, and a plurality of threaded mounting holes are uniformly distributed on the strip holes; the multi-point design can realize the testing of parameters such as potential, current, resistance and the like, and is beneficial to the collection and analysis of various negative protection parameters.
Further optimizing, wherein a sealing piece is arranged on the inner side of the hinge door; for improving the sealability.
Further optimizing, wherein the hinge door is made of stainless steel; the condition that the original steel hinge can not be normally opened or closed after being rusted is avoided.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
the utility model provides a high-efficiency portable pipeline test pile maintenance and test device which is suitable for the conditions that a test pile body is intact and test parts are severely corroded and damaged. Taking the improvement of the efficiency of maintaining the test pile, the reduction of the maintenance cost and the weakening of parameter test errors as starting points, designing a portable pipeline test pile maintenance and test device, realizing single-person carrying correction, improving the cathode protection parameter test effect, improving the integrity management level of a cathode protection system and the operation analysis accuracy of the cathode protection system; in addition, can also be applicable to the cylindrical test stake door of various sizes and change through the camber of adjusting hinge door when prefabricating.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:
FIG. 1 is a schematic diagram of a pipe test pile maintenance and test apparatus according to the present utility model after assembly;
FIG. 2 is a side view of a pipe test stake maintenance and testing apparatus provided by the present utility model;
FIG. 3 is a side view of the sub-door provided by the present utility model after being opened;
fig. 4 is a rear view of the pipe test stake maintenance and test apparatus provided by the present utility model.
FIG. 5 is a top view of the pipe test pile maintenance and test apparatus provided by the present utility model;
fig. 6 is a schematic structural diagram of a circuit board provided by the present utility model.
In the drawings, the reference numerals and corresponding part names:
1-test pile body, 2-hinge door, 3-pipe hoop, 4-fixed block, 5-sub door, 51-mounting hole, 6-triangle lock, 7-connecting wire, 8-circuit board, 81-regulation hole, 82-screw mounting hole, 9-sealing member.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.
Examples
The embodiment provides a high-efficiency portable pipeline test pile maintenance and test device, which is shown in fig. 1-6, and comprises a pipeline test pile body 1, a hinge door 2 and a pipe hoop 3;
the hinge door 2 is connected with the test pile body 1 through a pipe hoop 3, and the pipe hoop 3 is used for sleeving the hinge door 2 and the test pile body 1;
the hinge door 2 is tightly attached to the outer side of the test pile body 1 and seals the side wall pile opening of the test pile body 1.
Compared with the prior art, the test pile is in an open environment for a long time, the pile door is the hinge door 2 which is easy to rust and drop, when the test pile door is damaged or falls, the internal test circuit connecting plate, the metal binding post and the female protection test point are accelerated to rust and damage, and the test pile hinge door 2 and the test circuit board 8 are of test pile auxiliary structures, so that the test pile auxiliary structures are easy to damage and high in replacement frequency, and the traditional maintenance mode needs electric welding construction, material purchase, machine tool carrying, construction technology and other factors cause the problems of the current situation that the maintenance and maintenance test pile auxiliary structures are half in effort, and the like.
In the concrete scheme, the hinge door 2 comprises a hinge door 2 and a pipe hoop 3, wherein the hinge door 2 can be obtained by directly adopting the rusted hinge door 2, cleaning and dismantling the hinge door 2 damaged by the test pile body 1 through a tool, then connecting the hinge door 2 on the hinge door 2 through the pipe hoop 3, and opening the hinge door 2, so that the hinge door 2 is close to the test pile body 1, at the moment, the pipe hoop 3 is sleeved on the test pile body 1, and the screwing depth of a self-tapping screw of a locking device on the pipe hoop 3 is adjusted, so that the hinge door 2 can be completely fixed on the test pile body 1, thereby realizing detachable connection; the whole structure of the hinge door 2 is made of stainless steel materials, so that the effect of low corrosion rate of the self material is achieved, and the situation that the original steel hinge cannot be normally opened or closed after being corroded can be avoided. Meanwhile, the diameter of the three test piles of 76mm, 89mm and 100mm can be compatible in a stretching mode by utilizing the adjustability of the stainless steel material, so that the device is convenient to adapt to most production scenes. In the scheme, the portable pipeline test pile maintenance and test device is simple in manufacturing process, and common hardware manufacturers can manufacture the portable pipeline test pile maintenance and test device; the manufacturing period is short, and the batch manufacturing cost and quality can be ensured; the novel hinge is convenient to install, only needs to carry a small number of tools such as a screwdriver, a hammer and a wire pliers, can be installed and replaced by one person, reduces future maintenance, and accordingly avoids the situation that the original steel hinge cannot be normally opened and closed after being corroded. The traditional test pile door rectifying mode has obvious comparison effect with the portable maintenance and testing device rectifying mode, and the latter is comprehensively superior to the former.
Referring to fig. 1, in this embodiment, the hinge door 2 has pipe hoops 3 at both upper and lower ends; the hinge door 2 is firmly attached through the pipe hoops 3 at the upper end and the lower end.
Referring to fig. 2 and 3, as an embodiment for facilitating the opening of the hinge door 2, it is provided that: the two sides of the outer side wall of the hinge door 2 are provided with fixed blocks 4, and the fixed blocks 4 are provided with connecting holes for the pipe hoops 3 to pass through; in this embodiment, all weld fixed block 4 on the both sides of hinge door 2, have the connecting hole on the fixed block 4, when installing ferrule 3, with ferrule 3 from the connecting hole of hinge door 2 both sides wear out can, through the locking regulation of ferrule 3 at this moment, can adjust the degree of opening of hinge door 2 to this matches multiple test pile diameter. The locking hoop is locked and fixed by stainless steel through stainless steel self-tapping screws, and the hinge door 2 and the pile body are connected and locked after penetrating out from holes on two sides of the adjustable hinge door 2, so that the locking hoop is convenient to install, and the subsequent maintenance and field detection of the inside of the test pile are not affected. The anchor ear and the hinge door 2 can be detached, the convenient carrying and the installation are convenient, the original test mode of the test pile is not changed, the plumber can automatically install when using the line patrol, the movable welding is not needed during the maintenance, and the convenience and the rapidness are realized.
Referring to fig. 3, in this embodiment, a hinge door 2 is provided with a sub-door 5 for opening and closing the interior of a test pile 1; the sub-door 5 hinged on the hinge door 2 is convenient for installing and maintaining the inside of the test pile body 1.
Referring to fig. 3, in this embodiment, a sub-door 5 is provided with a cam lock 6; opening and closing of the sub-door 5 is achieved by means of a triangular lock 6.
Referring to fig. 1, as a specific embodiment for implementing the yin protection parameter of the door-opening test, it is set as follows: the sub-door 5 is provided with a mounting hole 51, a potential test terminal is mounted in the mounting hole 51, and the potential test terminal is connected with a circuit board 8 in the test pile body 1 through a connecting wire 7; in this embodiment, the potential test terminal is connected to the copper nose on the circuit board 8 through the connection wire 7, and then the potential test terminal is mounted on the mounting hole 51 of the sub-door 5, so that the potential, current, resistance and other parameters can be tested under the condition that the door is not opened through the potential test terminal, and the method is fast and convenient.
As a specific embodiment for ensuring that the cathode protection current is not lost, it is set as follows: the periphery of the potential testing terminal is coated with an insulating material, and the potential testing terminal is connected with the mounting hole 51 through the insulating material; in this embodiment, the potential test terminal is prefabricated in advance with insulating material and is combined, and the terminal adopts stainless steel material to make, reduces corrosion rate, and is isolated with hinge door 2 through insulating material, ensures that cathodic protection electric current does not run off. The terminals surrounded by the insulating material are matched with the open holes of the hinge door 2 in position, and are connected with the circuit board 8 through connecting leads, so that the non-opening and closing hinge door 2 can be used for testing the negative protection parameters.
As a specific implementation manner for realizing the multi-point test, the following is set: the circuit board 8 is provided with a plurality of adjusting holes 81, the adjusting holes 81 are strip holes, and a plurality of thread mounting holes 82 are uniformly distributed on the strip holes; in this embodiment, the connection position is adjusted on the circuit board 8 through the adjusting hole 81, and then the circuit board 8 is fixed through the threaded mounting hole 82, so that the circuit board 8 can adapt to the vertical deviation, the horizontal deviation and the horizontal deviation of the original pile fixing screw, the multi-point design can realize the testing of parameters such as potential, current and resistance, and is beneficial to the collection and analysis of various negative protection parameters.
Referring to fig. 5, as a specific embodiment for improving the sealing performance, there is provided: the inner side of the hinge door 2 is provided with a sealing piece 9; in this embodiment, the inside structure of the test pile hinge door 2 adopts sealing materials such as adhesive tapes to combine with the pile body for sealing, and a few gaps are sealed by glass cement, so that the terminal in the pile body is ensured to be in a relatively dry environment, and the test accuracy is improved.
As a redundancy solution, the hinge door 2 is made of stainless steel. The whole structure of the hinge door 2 is made of stainless steel materials, so that the effect of low corrosion rate of the self material is achieved, and the situation that the original steel hinge cannot be normally opened or closed after being corroded can be avoided. Meanwhile, the adjustable stainless steel pile can be compatible with three kinds of diameters of test piles of 76mm, 89mm and 100mm, and is convenient to adapt to most production scenes.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The high-efficiency portable pipeline test pile maintenance and test device comprises a pipeline test pile body (1) and is characterized by also comprising a hinge door (2) and a pipe hoop (3);
the hinge door (2) is connected with the test pile body (1) through a pipe hoop (3), and the pipe hoop (3) is used for sleeving the hinge door (2) and the test pile body (1) inside;
the hinge door (2) is tightly attached to the outer side of the test pile body (1) and seals the side wall pile opening of the test pile body (1).
2. The high-efficiency portable pipeline testing pile maintenance and testing device according to claim 1, wherein the upper end and the lower end of the hinge door (2) are provided with pipe hoops (3).
3. The device for maintaining and testing the high-efficiency portable pipeline testing pile according to claim 1, wherein the two sides of the outer side wall of the hinge door (2) are provided with fixing blocks (4), and the fixing blocks (4) are provided with connecting holes for the pipe hoops (3) to pass through.
4. The efficient portable pipeline test pile maintenance and test device according to claim 1, wherein the hinge door (2) is provided with a sub door (5) for opening and closing the interior of the test pile body (1).
5. A high efficiency portable pipe test stake maintenance and testing apparatus as described in claim 4 wherein said sub-doors (5) are provided with triangular locks (6).
6. The high-efficiency portable pipeline test pile maintenance and test device according to claim 4, wherein the sub-door (5) is provided with a mounting hole (51), a potential test terminal is arranged in the mounting hole (51), and the potential test terminal is connected with a circuit board (8) inside the test pile body (1) through a connecting wire (7).
7. The high-efficiency portable pipe test pile maintenance and test device according to claim 6, wherein the potential test terminals are coated with insulating material on the peripheral sides thereof, and the potential test terminals are connected with the mounting holes (51) through the insulating material.
8. The high-efficiency portable pipeline test pile maintenance and test device according to claim 6, wherein the circuit board (8) is provided with a plurality of adjusting holes (81), the adjusting holes (81) are long-strip holes, and a plurality of threaded mounting holes (82) are uniformly distributed in the long-strip holes.
9. A high-efficiency portable pipe test pile maintenance and test apparatus according to claim 1, characterized in that the inside of the hinged door (2) is provided with a seal (9).
10. A high efficiency portable plumbing testing stake maintenance and testing apparatus as in claim 1 wherein said hinged door (2) is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321544013.6U CN220012821U (en) | 2023-06-16 | 2023-06-16 | High-efficient portable pipeline test stake is maintained and testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321544013.6U CN220012821U (en) | 2023-06-16 | 2023-06-16 | High-efficient portable pipeline test stake is maintained and testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220012821U true CN220012821U (en) | 2023-11-14 |
Family
ID=88692893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321544013.6U Active CN220012821U (en) | 2023-06-16 | 2023-06-16 | High-efficient portable pipeline test stake is maintained and testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220012821U (en) |
-
2023
- 2023-06-16 CN CN202321544013.6U patent/CN220012821U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220012821U (en) | High-efficient portable pipeline test stake is maintained and testing arrangement | |
| CN211206184U (en) | Device for integrating temperature and pressure of geothermal water with field real-time detection | |
| JP2018179015A (en) | Reinforcement jig and auxiliary valve including the same | |
| CN111255953B (en) | Quick sealing device between pipeline and floor | |
| CN107275815B (en) | Ground-inserted ground concealed-installation grounding terminal box and installation method thereof | |
| CN211624571U (en) | Temporary pipeline plugging structure | |
| CN106468430A (en) | Light fixture and its attachment structure | |
| CN211449332U (en) | Screw-threaded nail | |
| CN215639933U (en) | Furnace tube leak detection auxiliary device | |
| CN206409778U (en) | A kind of new convenient pipe joint group | |
| CN217784439U (en) | Be applied to sealed split type rubber tube cover of exempting from of clean factory building | |
| CN205534823U (en) | Ware is salvageed to pipeline and an anchor clamps that is used for pipeline to salvage ware installation thereof | |
| CN206680580U (en) | Obturator with linear impressed current anode | |
| CN109274278A (en) | A kind of high voltage direct current converter valve screening electrodes mounting base prosthetic device and method | |
| CN220016455U (en) | Coupling mechanism of pipeline flange and flange thereof | |
| CN2871116Y (en) | Special tool for detaching butterfly valve | |
| CN220134955U (en) | Quick-opening blind plate tool | |
| CN102818090A (en) | Hole opening and blocking method of gas pipeline with pressure | |
| CN2780749Y (en) | Rod type electronic water treatment device | |
| CN216895209U (en) | Vacuum bellows with portable attach fitting | |
| CN218976595U (en) | Mounting bracket for photovoltaic panel | |
| CN209041852U (en) | A kind of sealing cover suitable for different tube diameters | |
| CN220911119U (en) | Opening end socket for sealing pressure container | |
| CN114636023A (en) | Be applied to sealed split type rubber tube cover of exempting from of clean factory building | |
| CN214037261U (en) | Composite flange with good leakage-proof performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |