CN113026921B - Quickly-arranged siphon drainage pipeline and using method - Google Patents
Quickly-arranged siphon drainage pipeline and using method Download PDFInfo
- Publication number
- CN113026921B CN113026921B CN202110277568.8A CN202110277568A CN113026921B CN 113026921 B CN113026921 B CN 113026921B CN 202110277568 A CN202110277568 A CN 202110277568A CN 113026921 B CN113026921 B CN 113026921B
- Authority
- CN
- China
- Prior art keywords
- pipe
- opening
- air bag
- drainage
- drain pipe
- 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
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/20—Siphon pipes or inverted siphons
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a rapid arrangement siphon drainage pipeline and a use method thereof, the rapid arrangement siphon drainage pipeline comprises a drainage pipe with a double-layer flexible structure, and a supporting mechanism consisting of a plurality of supporting air bags is arranged in an interlayer of the drainage pipe; the inner walls of the interlayers at the water inlet end and the water discharge end of the water discharge pipe are both connected with pipe orifice opening and closing air bags; the opening and closing air bag of the pipe orifice and the supporting mechanism are connected with the gas pumping and exhausting mechanism through an air pipe. This application has been solved current siphon drainage pipe and has been arranged time consuming longer, the process is more in advance, needs extra power supply, and the portability is relatively poor, the relatively poor problem of space utilization, has simple structure, uses conveniently, and is reliable and stable, does not rely on outside water source and power to carry out the water injection, and small, light in weight, the portability is strong, can arrange the characteristics of fast under emergency.
Description
Technical Field
The invention belongs to the technical field of pipeline drainage, and particularly relates to a quickly-arranged siphon drainage pipeline and a using method thereof.
Background
The existing siphon drainage pipe is generally fixed or movable, and for part of scenes needing flexible use, the movable siphon drainage pipe has the advantages of flexible use and high space utilization rate; the existing movable siphon drain pipe needs to be arranged according to the field situation before use, an empty pipe is generally arranged in advance in the arrangement stage, a water pump is generally adopted in the arranged pipeline water filling stage, or the pipe is arranged after being filled with water in advance. For the former mode, an additional water source or a power source is needed, and for the latter mode, when the pipeline is arranged, the pipeline is filled with water, so that the problems of heaviness, inconvenience and poor portability exist, and the high requirements of emergency tasks such as emergency rescue and the like on convenience and response speed cannot be met; therefore, it is urgently needed to design a siphon drainage pipeline with a rapid arrangement to solve the above problems.
Disclosure of Invention
The invention aims to solve the technical problems of long time consumption, more processes, additional power source, poor portability and poor space utilization rate of the existing siphon drainage pipeline in advance arrangement, and has the characteristics of simple structure, convenient use, stability, reliability, small volume, light weight, strong portability and rapid arrangement in an emergency state, and water injection is carried out without depending on an external water source and power.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a siphon drainage pipeline capable of being rapidly arranged comprises a drainage pipe with a double-layer flexible structure, wherein a supporting mechanism consisting of a plurality of supporting air bags is arranged in an interlayer of the drainage pipe; the inner walls of the interlayers at the water inlet end and the water discharge end of the water discharge pipe are both connected with pipe orifice opening and closing air bags; the opening and closing air bag of the pipe orifice and the supporting mechanism are connected with the gas pumping and exhausting mechanism through an air pipe.
Furthermore, the drain pipe is the flexible pipe, and drain pipe and gasbag all select flexible material such as rubber and plastic material to make, and ductility is strong, and the seal is good, and weight is lighter.
Preferably, the supporting air bags are annular air bags, and the interiors of the plurality of supporting air bags are communicated with the integrated air passage through communicating pipes; during the use, adopt gas as the support rather than the higher rigidity material of all the other densities as the support, can effectively reduce the holistic weight of device to easily reduce the volume of device body when accomodating, do benefit to and improve the portability, be convenient for arrange fast and respond.
Preferably, the opening and closing air bag is an annular air bag, and the outer surface of the opening and closing air bag is connected with the inner wall of the double-layer structure of the opening of the drain pipe.
Preferably, the surface of the inner ring of the opening and closing air bag is adhered with the sealant, and the tearing stress of the sealant is smaller than the expansion stress of the inflated opening and closing air bag; the opening and closing air bags are arranged at the two ends of the drain pipe, the opening and closing air bags can be contracted after air is exhausted, and at the moment, the opening and closing air bags are bonded and sealed through the sealant, so that the inner contraction state of the drain pipe in a standby state can be maintained, and the negative pressure water pumping is formed by expanding the inner volume when the drainage pipe is used; thereby sealed pulling force when can be opened and close the gasbag and strut tears and make the mouth of pipe open, compare in techniques such as current valve, closing cap, tie up, this mode of opening need not operating personnel and extends to the mouth of pipe position with operation tool and operate, can operate through long-range pump gas, adapts to site environment more easily and satisfies the space restriction, and whole weight is lighter, utilizes to carry.
Preferably, the gas pumping and exhausting mechanism comprises a first charging and exhausting pipe communicated with the inside of the supporting mechanism, and a first control valve is connected to the first charging and exhausting pipe.
Preferably, the gas pumping and discharging mechanism comprises a second charging and discharging pipe communicated with the inside of the opening and closing air bag of the pipe orifice, and a second control valve is connected to the second charging and discharging pipe; the water inlet and the drain hole at the two ends of the drain pipe are respectively and independently provided with a second charging and discharging pipe and a second control valve which are the same.
Preferably, the gas pumping and discharging mechanism comprises a third charging and discharging pipe communicated with the inner layer of the water discharging pipe, and a third control valve is connected to the third charging and discharging pipe.
Preferably, the use method of the rapid siphon drainage pipeline comprises the following steps:
s1, opening a third control valve, and pumping gas in the drain pipe by using vacuum pumping equipment to enable the drain pipe, the uninflated supporting mechanism and the opening and closing air bag to contract together, wherein the cross section of the flow passage of the drain pipe is close to zero;
s2, connecting the first, second and third pipe with compressed air source; then, the water inlet end of the water discharge pipe is immersed below the liquid level to be pumped, so that the elevation of the water discharge end at the other end is lower than that of the water inlet end;
s3, filling water in a drain pipe: starting the first control valve and the second control valve, inflating a supporting air bag in the supporting mechanism, and simultaneously inflating an opening and closing air bag at the water inlet end of the drain pipe, wherein the opening and closing air bag is expanded into an annular structure, the sealant adhered to the inner ring is torn by expansion stress, the water inlet end is opened, the drain pipe is supported by the supporting air bag to recover a tubular structure, the inner space of the flow channel is enlarged to form vacuum negative pressure, and a water source is sucked from the opened water inlet end and fills the flow channel in the drain pipe;
s4, inflating the opening and closing air bag at the drainage end through a second control valve and a second inflation and drainage pipe, expanding the opening and closing air bag into an annular structure, tearing the sealant adhered to the inner ring of the opening and closing air bag by the expansion stress, opening the drainage end, enabling the liquid filled in the inner flow passage of the drainage pipe to flow out of the drainage end, and continuously pumping and draining the liquid under the siphon action;
s5, stopping drainage: when the drainage needs to be stopped, a third control valve is opened to charge the interior of the drainage pipe, and the vacuum condition in the drainage pipe is broken to stop siphoning; or the water inlet end of the water discharge pipe is separated from the water surface to stop the water discharge;
s6, resetting the drain pipe: connecting the first pipe charging and discharging pipe, the second pipe charging and discharging pipe and the third pipe charging and discharging pipe by using air extraction equipment, vacuumizing the supporting mechanism, the inner runner of the water discharging pipe and the opening and closing of the inner part of the air bag, and restoring the whole device to the contraction state in S1; after the drainage pipe is finished, the inner rings of the air bags are opened and closed at the two ends of the drainage pipe are sealed by using sealant, so that a flow passage in the drainage pipe is in a closed state, and the contracted drainage pipe is stored for next use.
Further, the pressure gas source of the gas pumping and discharging mechanism can be replaced by other liquid with controllable pressure; the sealant can be replaced by a reusable plastic packaging strip.
The invention has the beneficial effects that:
1, the pipeline is made of flexible materials, compressed gas is filled into the air bag to provide supporting force instead of rigid materials with higher density, the weight is light, the occupied space is small, and quick arrangement is facilitated;
2. the compressed air source and the inflatable bag are connected through the hose, the change of the sectional area of the drainage pipeline is realized by utilizing the inflatable supporting airbag, the vacuum is manufactured for filling water for the drainage pipeline, the centralized control of the drainage pipeline body can be realized, and the convenience and the safety in use in a complex field environment are improved.
Drawings
FIG. 1 is a schematic view of the arrangement of a drain pipe in use according to the present invention;
FIG. 2 is a schematic view of the drain end of the drain pipe of the present invention during filling;
FIG. 3 is a schematic view of the water inlet end of the drain pipe of the present invention during filling;
FIG. 4 is a schematic view of the drain pipe in a contracted state before water is introduced into the drain pipe according to the present invention;
FIG. 5 is a schematic view of the opening and closing airbag of the present invention;
FIG. 6 is a cross-sectional schematic view of the drain pipe of the present invention;
the reference numbers in the figures are: the water supply device comprises a water discharge pipe 1, a water inlet end 11, a water discharge end 12, a supporting air bag 2, a communication pipe 3, an opening and closing air bag 4, a second charging and discharging pipe 5, a second control valve 51, a third charging and discharging pipe 6, a third control valve 61, a first charging and discharging pipe 7, a first control valve 71 and sealant 8.
Detailed Description
As shown in fig. 1 to 6, a siphon drainage pipeline with rapid arrangement comprises a drainage pipe 1 with a double-layer flexible structure, wherein a supporting mechanism composed of a plurality of supporting air bags 2 is arranged in an interlayer of the drainage pipe 1; the inner walls of the interlayers of the water inlet end 11 and the water outlet end 12 of the water outlet pipe 1 are both connected with a pipe orifice opening and closing air bag 4; the pipe opening and closing air bag 4 and the supporting mechanism are connected with the gas pumping and exhausting mechanism through a gas pipe.
Furthermore, the drain pipe 1 is a flexible pipe, and the drain pipe 1 and the air bag are both made of flexible materials such as rubber and plastic materials, so that the water-saving drainage pipe is strong in ductility, good in sealing performance and light in weight.
Preferably, the supporting air bags 2 are annular air bags, and the interiors of the supporting air bags 2 are communicated with an integrated air passage through the communicating pipes 3; during the use, adopt gas as the support rather than the higher rigidity material of all the other densities as the support, can effectively reduce the holistic weight of device to easily reduce the volume of device body when accomodating, do benefit to and improve the portability, be convenient for arrange fast and respond.
Preferably, the opening and closing air bag 4 is an annular air bag, and the outer surface of the opening and closing air bag 4 is connected with the inner wall of the double-layer structure of the opening of the drain pipe 1.
Preferably, the surface of the inner ring of the opening and closing air bag 4 is adhered with the sealant 8, and the tearing stress of the sealant 8 is smaller than the expansion stress of the inflated opening and closing air bag 4; the opening and closing air bags 4 are arranged at the two ends of the drain pipe 1, the opening and closing air bags 4 can be contracted after air is exhausted, and at the moment, the inner contraction state of the drain pipe 1 in a standby state can be kept by sticking and sealing the opening and closing air bags through the sealant 8, so that negative pressure water pumping is formed by expanding the inner volume when the drainage pipe is used conveniently; thereby sealed glue 8 can be opened by opening and close the tensile stress when gasbag 4 struts and tear and make the mouth of pipe open, compare in techniques such as current valve, closing cap, tie up, should open the mode and need not operating personnel and extend to the mouth of pipe position with operation tool and operate, can operate through long-range pump gas, adapt to site environment more easily and satisfy the space restriction, and whole weight is lighter, utilizes to carry.
Preferably, the gas pumping and exhausting mechanism comprises a first pipe 7 communicated with the inside of the supporting mechanism, and a first control valve 71 is connected to the pipeline of the first pipe 7.
Preferably, the gas pumping and exhausting mechanism comprises a second charging and exhausting pipe 5 communicated with the inside of the opening and closing air bag 4 of the pipe orifice, and a second control valve 51 is connected on the pipeline of the second charging and exhausting pipe 5.
Preferably, the gas pumping and discharging mechanism comprises a third pipe 6 communicated with the inner layer of the water discharging pipe 1, and a third control valve 61 is connected to the pipeline of the third pipe 6.
The use method of the siphon drainage pipeline capable of being quickly arranged comprises the following steps:
s1, opening the third control valve 61, and pumping the gas in the drain pipe 1 by using a vacuum pumping device to make the drain pipe 1 together with the uninflated support mechanism and the opening and closing air bag 4 contract, wherein the cross section of the flow passage of the drain pipe 1 is close to zero;
s2, connecting the first pipe 7, the second pipe 5 and the third pipe 6 with compressed air source; then, the water inlet end 11 of the water discharge pipe 1 is immersed below the liquid level to be pumped, so that the elevation of the water discharge end at the other end is lower than that of the water inlet end 11;
s3, filling the water in the water discharge pipe 1: starting the first control valve 71 and the second control valve 51, inflating the support airbag 2 in the support mechanism, and simultaneously inflating the opening and closing airbag 4 at the water inlet end 11 of the drain pipe 1, wherein the opening and closing airbag 4 is expanded into an annular structure, the sealant 8 adhered to the inner ring is torn by expansion stress, the water inlet end 11 is opened, the drain pipe 1 is supported by the support airbag 2 to restore the tubular structure, the inner space of the flow channel is increased, vacuum negative pressure is formed, and a water source is sucked from the opened water inlet end 11 and fills the flow channel in the drain pipe 1;
s4, inflating the opening and closing air bag 4 at the drainage end through the second control valve 51 and the second pipe 5, expanding the opening and closing air bag 4 into an annular structure, tearing the sealant 8 adhered to the inner ring of the opening and closing air bag 4 by the expansion stress, opening the drainage end, discharging the liquid filled in the flow channel in the drainage pipe 1 from the drainage end, and continuously performing pumping drainage under the siphon action;
s5, stopping drainage: when the drainage needs to be stopped, the third control valve 61 is opened to charge the air into the drainage pipe 1, and the vacuum condition inside is broken to stop the siphon; or the water inlet end 11 of the water discharge pipe 1 is separated from the water surface to stop the water discharge;
s6, the drain pipe 1 is reset: connecting a first pipe charging and discharging pipe 7, a second pipe charging and discharging pipe 5 and a third pipe charging and discharging pipe 6 by adopting air extraction equipment, vacuumizing the supporting mechanism, the internal flow passage of the water discharging pipe 1 and the opening and closing of the inside of the air bag 4, and recovering the whole device to the contraction state in S1; after the completion, the inner rings of the air bags 4 are opened and closed at the two ends of the drain pipe 1 are sealed by the sealant 8, so that the inner flow passage of the drain pipe 1 is in a closed state, and the contracted drain pipe 1 is stored for the next use.
Further, the pressure gas source of the gas pumping and discharging mechanism can be replaced by other liquid with controllable pressure; the sealant 8 can be replaced by a reusable plastic strip.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (5)
1. A arrange siphon drainage pipe fast which characterized in that: the drainage pipe comprises a drainage pipe (1) with a double-layer flexible structure, wherein a supporting mechanism consisting of a plurality of supporting air bags (2) is arranged in an interlayer of the drainage pipe (1); the inner walls of the interlayers of the water inlet end (11) and the water outlet end (12) of the water outlet pipe (1) are both connected with a pipe orifice opening and closing air bag (4); the pipe opening and closing air bag (4) and the supporting mechanism are connected with the gas pumping and exhausting mechanism through a gas pipe; the pipe opening and closing air bag (4) is an annular air bag, and the outer surface of the opening and closing air bag (4) is connected with the inner wall of the double-layer structure of the pipe opening of the drain pipe (1); the surface of the inner ring of the opening and closing air bag (4) is adhered with the sealant (8), the tearing stress of the sealant (8) is smaller than the expansion stress of the opening and closing air bag (4) after being inflated, the opening and closing air bag (4) is arranged at both ends of the drain pipe (1), the opening and closing air bag (4) is used for adhering and sealing the annular opening through the sealant (8) in the air pumping contraction state, the opening and closing air bag (4) props up the sealant (8) in the air pumping state, and the sealant (8) is torn by the pulling stress to open the pipe orifice; the gas pumping and discharging mechanism comprises a third pipe (6) communicated with the inner layer of the water discharging pipe (1), and a third control valve (61) is connected to the pipeline of the third pipe (6).
2. A rapid-action siphon drain pipe according to claim 1, characterized in that: the supporting air bags (2) are annular air bags, and the interiors of the supporting air bags (2) are communicated with an integrated air passage through communicating pipes (3).
3. A rapid-action siphon drain pipe according to claim 1, characterized in that: the gas pumping and exhausting mechanism comprises a first pipe (7) communicated with the inside of the supporting mechanism, and a first control valve (71) is connected to the pipeline of the first pipe (7).
4. A rapid-action siphon drain pipe according to claim 1, characterized in that: the gas pumping and discharging mechanism comprises a second charging and discharging pipe (5) communicated with the inside of the pipe opening and closing air bag (4), and a second control valve (51) is connected to the pipeline of the second charging and discharging pipe (5).
5. The method of using a quick-action siphon drain pipe according to claim 4, characterized in that: the method comprises the following steps:
s1, opening a third control valve (61), and pumping and discharging air in the drain pipe (1) by using vacuum pumping equipment to enable the drain pipe, the uninflated supporting mechanism and the opening and closing air bag (4) to contract together, wherein the cross section of the flow passage of the drain pipe (1) is close to zero;
s2, connecting the first pipe (7), the second pipe (5) and the third pipe (6) with compressed air source; then, the water inlet end (11) of the water discharge pipe (1) is submerged below the liquid level to be pumped, and the elevation of the water discharge end (12) at the other end is lower than that of the water inlet end (11);
s3, filling water in a drain pipe: starting a first control valve (71) and a second control valve (51), inflating a supporting air bag (2) in a supporting mechanism, simultaneously inflating an opening and closing air bag (4) of a water inlet end (11) of a drain pipe (1), expanding the opening and closing air bag (4) into an annular structure, tearing a sealant (8) adhered to an inner ring by expansion stress, opening the water inlet end (11), simultaneously supporting the drain pipe (1) by the supporting air bag (2) to restore a tubular structure, increasing the inner space of a flow channel to form vacuum negative pressure, and sucking a water source from the opened water inlet end (11) and filling the flow channel in the drain pipe (1);
s4, inflating the opening and closing air bag (4) of the drainage end (12) through a second control valve (51) and a second pipe (5) for inflating, expanding the opening and closing air bag (4) into an annular structure, tearing the sealant (8) adhered to the inner ring of the opening and closing air bag (4) by expansion stress, opening the drainage end (12), enabling the liquid filled in the inner flow passage of the drainage pipe (1) to flow out of the drainage end (12), and continuously pumping and draining under the siphon action;
s5, stopping drainage: when the drainage needs to be stopped, a third control valve (61) is opened, the interior of the drainage pipe (1) is inflated, and the internal vacuum condition is broken to stop the siphon; or the water inlet end (11) of the drain pipe (1) is separated from the water surface to stop the drainage;
s6, resetting the drain pipe: connecting a first pipe (7), a second pipe (5) and a third pipe (6) by using air extraction equipment, vacuumizing the supporting mechanism, the internal flow passage of the drain pipe (1) and the inside of the opening and closing air bag (4), and recovering the whole device to the contraction state in S1; after the drainage pipe is finished, the inner rings of the air bags (4) are opened and closed at the two ends of the drainage pipe are sealed by using the sealant (8), so that the internal flow passage of the drainage pipe (1) is in a closed state, and the contracted drainage pipe (1) is stored for next use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110277568.8A CN113026921B (en) | 2021-03-15 | 2021-03-15 | Quickly-arranged siphon drainage pipeline and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110277568.8A CN113026921B (en) | 2021-03-15 | 2021-03-15 | Quickly-arranged siphon drainage pipeline and using method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113026921A CN113026921A (en) | 2021-06-25 |
| CN113026921B true CN113026921B (en) | 2022-03-15 |
Family
ID=76470649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110277568.8A Active CN113026921B (en) | 2021-03-15 | 2021-03-15 | Quickly-arranged siphon drainage pipeline and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113026921B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002323000A (en) * | 2001-01-17 | 2002-11-08 | Chung-Kun Liu | Liquid supply device |
| CN2854159Y (en) * | 2005-11-25 | 2007-01-03 | 崇明县新光中学 | Liquid pumping device |
| CN102167210A (en) * | 2011-02-28 | 2011-08-31 | 贺文晓 | Interlayer charging type movable cistern |
| CN202789774U (en) * | 2012-03-29 | 2013-03-13 | 陈明 | Siphon liquid-sucking device |
| CN110984197A (en) * | 2019-11-25 | 2020-04-10 | 浙江大学 | Device and method for starting siphon drainage by pressurization |
-
2021
- 2021-03-15 CN CN202110277568.8A patent/CN113026921B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002323000A (en) * | 2001-01-17 | 2002-11-08 | Chung-Kun Liu | Liquid supply device |
| CN2854159Y (en) * | 2005-11-25 | 2007-01-03 | 崇明县新光中学 | Liquid pumping device |
| CN102167210A (en) * | 2011-02-28 | 2011-08-31 | 贺文晓 | Interlayer charging type movable cistern |
| CN202789774U (en) * | 2012-03-29 | 2013-03-13 | 陈明 | Siphon liquid-sucking device |
| CN110984197A (en) * | 2019-11-25 | 2020-04-10 | 浙江大学 | Device and method for starting siphon drainage by pressurization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113026921A (en) | 2021-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10640186B2 (en) | Inflation device and method of use | |
| CN113026921B (en) | Quickly-arranged siphon drainage pipeline and using method | |
| WO2023082930A1 (en) | Sluice gate automatic inflation leak-plugging apparatus and operation method thereof | |
| CN214657562U (en) | Arrange siphon drainage pipe fast | |
| CN201350967Y (en) | Remote-control submarine | |
| CN111561031B (en) | Water inlet and water discharge combined control system and method | |
| CN102561682A (en) | High-strength inflatable air sac for cast-in-place concrete hollow floor and production method for high-strength inflatable air sac | |
| CN115929251B (en) | Underground recyclable dynamic liquid injection hole sealing device and construction method | |
| CN206722008U (en) | A kind of driving tank for excrement pan of gasbag-type air pressure | |
| CN207892791U (en) | A kind of high-efficient inflator | |
| CN111498006B (en) | Air suction prevention device suitable for luxurious cruise ship bilge water system | |
| CN113525632A (en) | Underwater intelligent robot capable of floating upwards quickly | |
| CN111561032B (en) | Water inlet and water discharge combined control system and method | |
| CN112160730B (en) | Combined oil field water injection well layered acidification device | |
| CN112078776A (en) | Capsule structure, aerostat and working method of aerostat | |
| CN115030145B (en) | Wing-expanding drilling and pile-side grouting construction method for tubular pile | |
| CN206942701U (en) | Motor-pumped well sediment fishing device | |
| CN115045371B (en) | Negative pressure type air suction water-saving intelligent toilet | |
| CN113521621B (en) | Barrel body for containing fire-fighting foam liquid | |
| CN212929167U (en) | Medium blocking device for rapid pipeline repair | |
| CN217349144U (en) | Liquid transfer device | |
| CN116104541B (en) | Grouting pipe for well grouting | |
| CN220876621U (en) | Inflatable bath barrel | |
| CN111677475B (en) | Packer for oil and gas exploitation | |
| CN214232234U (en) | Sealing structure of medical waste ethylene oxide disinfection cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |