CN109469750A - Non-return valve and pipeline with it - Google Patents
Non-return valve and pipeline with it Download PDFInfo
- Publication number
- CN109469750A CN109469750A CN201811648923.2A CN201811648923A CN109469750A CN 109469750 A CN109469750 A CN 109469750A CN 201811648923 A CN201811648923 A CN 201811648923A CN 109469750 A CN109469750 A CN 109469750A
- Authority
- CN
- China
- Prior art keywords
- stop part
- return valve
- pipeline
- connection component
- feed opening
- 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
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 239000013013 elastic material Substances 0.000 claims description 12
- 238000000605 extraction Methods 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 description 11
- 238000010276 construction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000000284 extract Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
- F16K15/145—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements being shaped as a solids of revolution, e.g. cylindrical or conical
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
Abstract
The present invention provides a kind of non-return valve and with its pipeline, which is arranged at the grouting port of pipeline, and non-return valve includes: connection component, and connection component is arranged in grouting port and connect with pipeline, and connection component is equipped with feed opening；Lock-in component, lock-in component are arranged on connection component, and lock-in component includes multiple sealed leaves, multiple sealed leaf joints are arranged around feed opening, to open feed opening by multiple sealed leaves when pouring rifle insertion feed opening, when pouring rifle extraction feed opening, passes through multiple sealed leaves and close feed openings.Non-return valve of the invention solves the problems, such as that pipeline grouting port in the prior art causes spillage because closing not in time.
Description
Technical field
The present invention relates to technical field of tunnel construction, in particular to a kind of non-return valve and with its pipeline.
Background technique
In the realm of building construction, placing concrete is a kind of common construction procedure, be capable of enhancing structure intensity and
Stability, in the prior art when carrying out slip casting into some pipelines or circular hole, common practices is will to pour rifle to be inserted into pipeline
It is interior with to pipeline carry out placing concrete, after pouring extract pour rifle then injected hole is closed.
However, the problem of being easy to appear in aforesaid operations is to extract pouring rifle to the closed process of grouting port progress
In, since the slurry of pouring has certain pressure, during this period of time sprayed by grouting port so having a large amount of slurry,
When especially in the construction in tunnel, it is often necessary to be poured from the bottom up, once blocking not in time, there will be a large amount of stream of slurry
Out, it not only causes to waste, but also affects the quality of slip casting, and when slurry is excessive grouting port is closed very tired
Therefore difficulty closes a procedure troubling in the problem of causing spillage not in time always concrete construction to grouting port.
Summary of the invention
The main purpose of the present invention is to provide a kind of non-return valve and with its pipeline, to solve pipe in the prior art
The problem of road grouting port causes spillage because closing not in time.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of non-return valve, is arranged in the note of pipeline
It starches at mouth, non-return valve includes: connection component, and connection component is arranged in grouting port and connect with pipeline, and connection component is equipped with
Feed opening；Lock-in component, lock-in component are arranged on connection component, and lock-in component includes multiple sealed leaves, multiple sealed leaf joints
It is arranged around feed opening, to open feed opening by multiple sealed leaves when pouring rifle insertion feed opening, extracts charging pouring rifle
Kong Shi closes feed opening by multiple sealed leaves.
Further, sealed leaf is elastic material, and adjacent sealed leaf is at least partly overlapped.
Further, connection component is equipped with clamping portion, and connection component is connected on pipeline by clamping portion.
Further, clamping portion is card slot.
Further, connection component includes: the first stop part, and the first stop part is used to be arranged in the outside of pipeline；Second
Stop part, the second stop part are used to be arranged in the inside of pipeline；Lock-in component is rotatably arranged on the second stop part.
Further, connection component uses elastic material, and the first stop part is integrally formed with the second stop part.
Further, the first stop part is telescopically connect with the second stop part, to be carried out according to the pipe thickness of pipeline
It adjusts.
Further, the first stop part is equipped with external screw thread, and the second stop part is equipped with the interior spiral shell matched with external screw thread
Line, so that the first stop part is threadedly coupled with the second stop part.
Further, the second stop part is made of elastic material, section of second stop part far from first stop part one end
Less than the second stop part close to the section of first stop part one end, so that the second stop part is inserted into grouting port.
According to another aspect of the present invention, a kind of pipeline, including tube body and non-return valve are provided, non-return valve is above-mentioned inverse
Only valve, tube body are equipped with grouting port, and non-return valve is arranged at grouting port.
The non-return valve to apply the technical scheme of the present invention, is mainly used in constructing tunnel, in the steel to pipe curtain structure
When being poured inside pipeline, non-return valve is arranged at grouting port, to prevent when extracting pouring rifle, slurry flows out therewith
The problem of, non-return valve of the invention includes connection component and lock-in component, connection component be arranged at the grouting port of pipeline with
The tube wall of pipeline is attached, and lock-in component includes multiple sealed leaves, and multiple sealed leaf joints are arranged around feed opening, and sealed leaf can
It rotationally opens to insides of pipes, when in use, non-return valve is arranged in grouting port, connection component can be passed through by pouring rifle
The feed opening of upper setting, which is inserted into pipe, to be poured, and after pouring rifle extraction feed opening, the sealed leaf of lock-in component can be fast
Speed closes feed opening, and to prevent slurry outflow, the non-return valve of the application can effectively solve pipeline note in the prior art
The problem of slurry mouth causes spillage because closing not in time.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the structure sectional view of the first embodiment of non-return valve according to the present invention；
Fig. 2 shows the side views of non-return valve in Fig. 1 of the present invention；
Fig. 3 shows the structure sectional view of the second embodiment of non-return valve according to the present invention；
Fig. 4 shows the structure sectional view of the 3rd embodiment of non-return valve according to the present invention；
Fig. 5 shows the structure sectional view of the fourth embodiment of non-return valve according to the present invention；
Fig. 6 shows the structure sectional view of the embodiment of pipeline according to the present invention.
Wherein, the above drawings include the following reference numerals:
10, pipeline；20, connection component；21, feed opening；22, clamping portion；23, the first stop part；24, the second stop part；
30, lock-in component；31, sealed leaf.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of non-return valve is arranged at the grouting port of pipeline 10, please refers to Fig. 1 to Fig. 6, and non-return valve includes: connection component
20, connection component 20 is arranged in grouting port and connect with pipeline 10, and connection component 20 is equipped with feed opening 21；Lock-in component
30, lock-in component 30 be arranged on connection component 20, lock-in component 30 include multiple sealed leaves 31, multiple sealed leaves 31 around into
Expect that hole 21 is arranged, feed opening 21 is opened by multiple sealed leaves 31, extracted pouring rifle when pouring rifle insertion feed opening 21
When feed opening 21, feed opening 21 is closed by multiple sealed leaves 31.
The present invention provides a kind of non-return valves, are mainly used in constructing tunnel, in the steel pipeline to pipe curtain structure
When being poured inside 10, non-return valve is arranged at grouting port, to prevent when extracting pouring rifle, what slurry flowed out therewith is asked
Topic, non-return valve of the invention includes connection component 20 and lock-in component 30, and connection component 20 is arranged at the grouting port of pipeline 10
It is attached with the tube wall with pipeline 10, lock-in component 30 includes multiple sealed leaves 31, and multiple sealed leaves 31 are around feed opening 21
Setting, sealed leaf can rotationally be opened to 10 inside of pipeline, when in use, non-return valve are arranged in grouting port, is poured
Rifle can be inserted into pipe by the feed opening 21 being arranged on connection component 20 and be poured, and extract feed opening 21 when pouring rifle
Afterwards, the sealed leaf 31 of lock-in component can quickly close feed opening 21, to prevent slurry outflow, the non-return valve of the application
It can effectively solve the problem of 10 grouting port of pipeline in the prior art causes spillage because closing not in time.
Sealed leaf 31 is elastic material, and adjacent sealed leaf 31 is at least partly overlapped.
Preferably, the sealed leaf 31 in the present embodiment is made of elastic material, such as plastic material, adjacent sealed leaf 31
Between mutually overlap, can be realized in the closed state to the completely enclosed of feed opening 21, sealed leaf 31 is merely able into pipe
Rotating opening can not be turned out.
Connection component 20 is equipped with clamping portion 22, and connection component 20 is connected on pipeline 10 by clamping portion 22.Clamping portion
22 be card slot.
As shown in Figure 1, the connection component 20 in the present embodiment is equipped with clamping portion 22, clamping portion 22 is card slot, connection group
Part 20 is fastened on the tube wall of pipeline 10 by card slot, so that non-return valve be enable to be connected on pipeline 10.
Connection component 20 includes: the first stop part 23, and the first stop part 23 is used to be arranged in the outside of pipeline 10；Second stops
Block piece 24, the second stop part 24 are used to be arranged in the inside of pipeline 10；Lock-in component 30 is rotatably arranged in the second stop part
On 24.
As shown in Figures 3 to 6, the connection component 20 in the present embodiment in the present embodiment includes the first stop part 23 and the
The grouting port of one end of second stop part 24 of non-return valve towards steel pipe is inserted into, first by two stop parts 24 when installing connection
Stop part 23 stays in 10 outside of pipeline, and the tube wall of pipeline 10 is fastened between the first stop part 23 and the second stop part 24,
Lock-in component 30 and the second stop part 24 are hinged, to open or close feed opening 21.
Connection component 20 uses elastic material, and the first stop part 23 is integrally formed with the second stop part 24.
Connection component 20 in the present embodiment preferably uses elastic material, and such as rubber material fills in the second stop part 24
Enter in grouting port, to pipeline is fastened in the card slot of connection component 20.
First stop part 23 is telescopically connect with the second stop part 24, to be adjusted according to the pipe thickness of pipeline 10
Section.First stop part 23 is equipped with external screw thread, and the second stop part 24 is equipped with the internal screw thread matched with external screw thread, so that first
Stop part 23 is threadedly coupled with the second stop part 24.
As shown in Figure 5 and Figure 6, the connection component 20 in the present embodiment divides for two parts, and first part is the first stop part
23, another part be the second stop part 24, during installation, in advance by the second stop part 24 be arranged inside pipeline 10, be allowed to
First stop part 23 in 10 outside of pipeline is attached, and is attached for convenience, and the first stop part 23 is equipped with external screw thread, the
Two stop parts 24 are equipped with internal screw thread, and the first stop part 23 is connected through a screw thread with the second stop part 24,23 He of the first stop part
Second stop part 24 can be adjusted by the thickness of pipe wall, so that the non-return valve of the application can be applied not
On same steel pipe.
Second stop part 24 is made of elastic material, and the second stop part 24 is less than far from the section of 23 one end of the first stop part
Second stop part 24 is close to the section of 23 one end of the first stop part, so that the second stop part 24 to be inserted into grouting port.
As shown in Figures 1 to 6, the second stop part 24 in the present embodiment uses elastic material, and the second stop part 24 is circle
Vertebra shape, the diameter of the one end of the second stop part 24 far from the first stop part 23 is less than the second stop part 24 close to the first stop part 23
One end diameter, to facilitate the second stop part 24 to be inserted into grouting port, while the second stop part 24 is close to the first stop part
23 one end diameter is greater than the diameter of grouting port to prevent non-return valve from falling off outward.
A kind of pipeline, including tube body and non-return valve, non-return valve are above-mentioned non-return valve, and tube body is equipped with grouting port, check
Valve is arranged at grouting port.
Pipeline in the application installs check (non-return) valve as shown in fig. 6, pipeline 10 is equipped with grouting port on grouting port, non-return
Valve is unidirectional opening, can make to pour rifle from the outer side of pipeline 10 to insides of pipes insertion, and the substance in pipeline 10 cannot lead to
It crosses outside check (non-return) valve effuser.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
The present invention provides a kind of non-return valves, are mainly used in constructing tunnel, in the steel pipeline to pipe curtain structure
When being poured inside 10, non-return valve is arranged at grouting port, to prevent when extracting pouring rifle, what slurry flowed out therewith is asked
Topic, non-return valve of the invention include connection component 20 and lock-in component 30, connection component 20 be arranged at the grouting port of pipeline with
It being attached with the tube wall of pipeline, lock-in component 30 includes multiple sealed leaves 31, and multiple sealed leaves 31 are arranged around feed opening 21,
Sealed leaf 31 can rotationally be opened to 10 inside of pipeline, and when in use, non-return valve is arranged in grouting port, pours rifle energy
It is enough inserted into pipe and is poured by the feed opening 21 being arranged on connection component 20, after pouring rifle extraction feed opening 21, lock
The sealed leaf 31 of seaming element can quickly close feed opening 21, and to prevent slurry outflow, the non-return valve of the application can have
Effect solves the problems, such as that 10 grouting port of pipeline in the prior art causes spillage because closing not in time.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of invention protection scope.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of non-return valve, it is arranged at the grouting port of pipeline (10), which is characterized in that the non-return valve includes:
Connection component (20), the connection component (20) is arranged in the grouting port and connect with the pipeline (10), described
Connection component (20) is equipped with feed opening (21)；
Lock-in component (30), the lock-in component (30) are arranged on the connection component (20), lock-in component (30) packet
Multiple sealed leaves (31) are included, multiple sealed leaves (31) are arranged around the feed opening (21), to pour described in rifle insertion
When feed opening (21), open the feed opening (21) by multiple sealed leaves (31), extracted in the pourings rifle described in into
When expecting hole (21), the feed opening (21) is closed by multiple sealed leaves (31).
2. non-return valve according to claim 1, which is characterized in that the sealed leaf (31) is elastic material, adjacent institute
Sealed leaf (31) is stated at least partly to be overlapped.
3. non-return valve according to claim 1, which is characterized in that the connection component (20) is equipped with clamping portion (22),
The connection component (20) is connected on the pipeline (10) by the clamping portion (22).
4. non-return valve according to claim 3, which is characterized in that the clamping portion (22) is card slot.
5. non-return valve according to claim 1, which is characterized in that the connection component (20) includes:
First stop part (23), first stop part (23) is for being arranged in the outside of the pipeline (10)；
Second stop part (24), second stop part (24) is for being arranged in the inside of the pipeline (10)；Described sealed group
Part (30) is rotatably arranged on second stop part (24).
6. non-return valve according to claim 5, which is characterized in that the connection component (20) uses elastic material, described
First stop part (23) is integrally formed with second stop part (24).
7. non-return valve according to claim 5, which is characterized in that first stop part (23) and second stop part
(24) it telescopically connects, to be adjusted according to the pipe thickness of the pipeline (10).
8. non-return valve according to claim 5, which is characterized in that first stop part (23) is equipped with external screw thread, institute
State the second stop part (24) and be equipped with the internal screw thread that matches with the external screw thread so that first stop part (23) with it is described
Second stop part (24) is threadedly coupled.
9. non-return valve according to claim 5, which is characterized in that second stop part (24) is made of elastic material,
Section of second stop part (24) far from described first stop part (23) one end is close less than second stop part (24)
The section of described first stop part (23) one end, so that second stop part (24) to be inserted into the grouting port.
10. a kind of pipeline, including tube body and non-return valve, which is characterized in that the non-return valve is any one of claims 1 to 9
The non-return valve, the tube body are equipped with grouting port, and the non-return valve is arranged at the grouting port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648923.2A CN109469750A (en) | 2018-12-30 | 2018-12-30 | Non-return valve and pipeline with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648923.2A CN109469750A (en) | 2018-12-30 | 2018-12-30 | Non-return valve and pipeline with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109469750A true CN109469750A (en) | 2019-03-15 |
Family
ID=65678070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811648923.2A Pending CN109469750A (en) | 2018-12-30 | 2018-12-30 | Non-return valve and pipeline with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469750A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH438041A (en) * | 1966-08-29 | 1967-06-15 | Fega Werk | Device for ventilating a room, in particular an air protection room |
| DE2411521A1 (en) * | 1974-03-11 | 1975-10-23 | Hauff Technik Kg | Wall feed-through duct for cables - has adjustable tubing and has rectangular flanges capable of mating with other duct flanges |
| US20110211974A1 (en) * | 2010-03-01 | 2011-09-01 | William Anthony Harper | Curved pliant film valves |
| CN102536383A (en) * | 2010-12-02 | 2012-07-04 | 爱尔铃克铃尔股份公司 | Oil separator unit |
| CN203009934U (en) * | 2012-12-18 | 2013-06-19 | 溢泰实业股份有限公司 | Check valve |
| CN105104113A (en) * | 2015-09-08 | 2015-12-02 | 大禹节水（天津）有限公司 | Double-membrane one-way pipe connector bypass specially used for buried drip irrigation |
| CN105164454A (en) * | 2013-01-28 | 2015-12-16 | 风斗科技公司 | Inflation valve allowing for rapid inflation and deflation of inflatable object |
| CN106460398A (en) * | 2014-01-23 | 2017-02-22 | 豪夫科技股份有限公司 | Feed-through member to be mounted in a wall element or floor element |
| CN109026085A (en) * | 2018-07-25 | 2018-12-18 | 陕西煤业化工技术研究院有限责任公司 | A kind of coal mining high tensile steel tube concrete pillar and its application method |
| CN209557721U (en) * | 2018-12-30 | 2019-10-29 | 中铁十四局集团有限公司 | Non-return valve and pipeline with it |
-
2018
- 2018-12-30 CN CN201811648923.2A patent/CN109469750A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH438041A (en) * | 1966-08-29 | 1967-06-15 | Fega Werk | Device for ventilating a room, in particular an air protection room |
| DE2411521A1 (en) * | 1974-03-11 | 1975-10-23 | Hauff Technik Kg | Wall feed-through duct for cables - has adjustable tubing and has rectangular flanges capable of mating with other duct flanges |
| US20110211974A1 (en) * | 2010-03-01 | 2011-09-01 | William Anthony Harper | Curved pliant film valves |
| CN102536383A (en) * | 2010-12-02 | 2012-07-04 | 爱尔铃克铃尔股份公司 | Oil separator unit |
| CN203009934U (en) * | 2012-12-18 | 2013-06-19 | 溢泰实业股份有限公司 | Check valve |
| CN105164454A (en) * | 2013-01-28 | 2015-12-16 | 风斗科技公司 | Inflation valve allowing for rapid inflation and deflation of inflatable object |
| CN106460398A (en) * | 2014-01-23 | 2017-02-22 | 豪夫科技股份有限公司 | Feed-through member to be mounted in a wall element or floor element |
| CN105104113A (en) * | 2015-09-08 | 2015-12-02 | 大禹节水（天津）有限公司 | Double-membrane one-way pipe connector bypass specially used for buried drip irrigation |
| CN109026085A (en) * | 2018-07-25 | 2018-12-18 | 陕西煤业化工技术研究院有限责任公司 | A kind of coal mining high tensile steel tube concrete pillar and its application method |
| CN209557721U (en) * | 2018-12-30 | 2019-10-29 | 中铁十四局集团有限公司 | Non-return valve and pipeline with it |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2675131C2 (en) | Coupling device for reversibly coupling a ladle shroud to collector nozzle, self-supported ladle shroud, kit thereof and method for coupling ladle shroud to collector nozzle | |
| CN209557721U (en) | Non-return valve and pipeline with it | |
| CN109469750A (en) | Non-return valve and pipeline with it | |
| CN209557716U (en) | Non-return valve and pipeline with it | |
| CN109404572A (en) | Non-return valve and pipeline with it | |
| CN206708629U (en) | The anti-blocking capping of sewage pipe | |
| CN206918531U (en) | A kind of Pipe leakage stopper | |
| CN204024266U (en) | Spacing door | |
| CN206199526U (en) | A kind of edible oil metering nozzle | |
| CN207575940U (en) | Water purifier | |
| CN104235436B (en) | Two-way push plug type valve | |
| CN105697836B (en) | Gas pipeline self closing device to be gushed | |
| CN206309362U (en) | Ball collecting device | |
| CN203656270U (en) | Container valve of extinguishing agent storage bottle | |
| CN205858327U (en) | Formation testing tubing string | |
| CN206221886U (en) | Switching valve and the repairing pipe with it | |
| CA2914394C (en) | Apparatus for ball catching | |
| CN208417951U (en) | A kind of CIPP pipeline rehabilitation satellite interface and the pipeline with the interface | |
| CN109488783A (en) | A kind of switch cock valve with pressure and application method | |
| CN209324648U (en) | A kind of pump line check-valves of concrete pump | |
| CN207349571U (en) | A kind of valve connector fixture | |
| CN206466421U (en) | New hoop for barrel | |
| CN208038026U (en) | A kind of ink extraction reflux sealing cover integrated apparatus | |
| CN207364400U (en) | A kind of electromagnetic valve connector | |
| CN209262330U (en) | A kind of pump line check-valves of concrete pump |
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 |