CN105351574A - Extension displacement check valve for emergency rescuing draining pipeline of coal mine deviated well and application of extension displacement check valve - Google Patents
Extension displacement check valve for emergency rescuing draining pipeline of coal mine deviated well and application of extension displacement check valve Download PDFInfo
- Publication number
- CN105351574A CN105351574A CN201510937971.3A CN201510937971A CN105351574A CN 105351574 A CN105351574 A CN 105351574A CN 201510937971 A CN201510937971 A CN 201510937971A CN 105351574 A CN105351574 A CN 105351574A
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- drainage pipe
- check valve
- displacement
- valve
- draining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses an extension displacement check valve for an emergency rescuing draining pipeline of a coal mine deviated well. A draining pump and a draining sluice valve of the draining pump are sequentially communicated with a lower draining pipeline, an extending draining pipeline and an upper draining pipeline; a displacement check valve is arranged inside the upper draining pipeline; when the pipeline is in urgent need of extension for emergency drainage, the extending draining pipeline is connected between the upper draining pipeline and the lower draining pipeline by movement of the displacement check valve, and then the draining sluice valve is opened for draining water. The extension displacement check valve disclosed by the invention is used for solving the problem of back flowing of pipeline water when a new pipe is connected for prolonging the draining pipeline during drainage for emergency rescuing of the coal mine deviated well and realizing the aims of rapid connection and rapid drainage by prolonging the draining pipeline under a coal mine well.
Description
Technical field
The present invention relates to a kind of check valve, particularly the slant well emergency repair of a kind of colliery chases after the check valve that drainage pipe extends inner movement.When this check valve prevents from extending drainage pipe, water flow medium flows backwards and destroys draining operating mode, even causes serious casualties; And when pumping drainage pressure reduces suddenly, the water pump preventing from water flow medium from flowing backwards causing impacts, destroy.
Technical background
Under the slant well of colliery during emergency repair draining, the water flow medium of long distance tilted tube can produce the water hammer of high speed, large impact under gravitational potential energy effect, and huge water hammer can cause second accident, and serious casualties can be caused in flow backwards tunnel.For this reason, prior art emergency repair under the slant well of colliery is badly in need of extending drainage pipe when carrying out growing distance draining, the technological means adopted is by repeatedly installing check valve, repeatedly fix a drainpipe to realize, and when the drainage pipe of continuous several times extends, not only need more check valve, and need assembling continuously, and ensure its sealing and Security, the more important thing is that check valve is repeatedly linked into the emergency repair rescue time of at substantial on drainage pipe.
Therefore, a kind of pipeline of R & D design extends displacement check valve, when extending draining for emergency repair drainage pipe under the slant well of colliery, prevents flow backwards, saves rescue time, have great use value.
The prior art that can obtain, if publication number is that CN203477470U discloses one " adverse current check device ", comprise assembling pipe and pipe joint, the waterexit end fixed cover of this pipe joint is located at the water intake end of assembling pipe, and pipe joint and assembling pipe tight abutment are arranged, check valve is sheathed in assembling pipe, and the waterexit end of the water intake end tight abutment pipe joint of this check valve, check valve comprises the valve base near waterexit end and the bonnet cap near water intake end, the flange of valve base is fixedly connected with assembling pipe, bonnet cap is movably set in outside valve base, bonnet cap vertically with valve base relative movement, bonnet cap is closed end near water intake end place.This device is complicated operation when extending pipeline, therefore needs further to optimize adverse current check device.
Publication number-for CN202402718U discloses " a kind of pipeline check valve ", comprise valve body pipeline and be inserted in the spool in described valve body pipeline; The inwall of described valve body pipeline is provided with one annular convex surface; As a whole of described spool, comprises connecting rod and is separately positioned on anticreep barb and the sealed cap at described connecting rod two ends; Described sealed cap is positioned at described annular convex surface side, and described connecting rod is through described valve body pipeline; The anticreep barb of described connecting rod end stretches out the opposite side of described annular convex surface; Described spool can move within the specific limits vertically in described valve body pipeline, and when described sealed cap is after described annular convex surface direction motion certain distance, described annular convex surface contacts with described sealed cap and is sealed and matched, and described check valve is in closed condition; After described sealed cap is away from described annular convex surface direction motion certain distance, annular convex surface side described in the anticreep barbs hold of described connecting rod end stops described spool to continue motion, and described check valve is in opening state.The utility model product structure is simple, and make simple and convenient assembly, stable performance, good sealing effect, flow resistance is lower, longer service life.
Publication number-for CN2630597Y discloses " a kind of Non-return valve of water pipeline ", it is made up of housing, valve ball and fence.Pipeline check valve housing is connected and composed in movable joint mode by two-part, and floor drain water seal inverted valve housing upper is internal thread open type, screws in floor drain core from top.It is good that Non-return valve of water pipeline has check performance, and structure is simple, cost is low, install and the advantage such as easy to maintenance.Be particularly suited for installing and using on residential sewer.
Publication number is that CN202402718U discloses " a kind of pipeline check valve ", comprise by valve shell, upper cover, O-ring seal plunger, piston, feature is that the piston of plunger and O-ring seal are close to that to form three seals oil-proof water-tight air tight, time saving and energy saving.Be suitable for water pump industry, Oil, Water, Gas shutoff device and suction engine bottom valve, pipeline valve, the uses such as pipeline valve cock.
Above-mentioned disclosed prior art is not suitable with to be applied on colliery slant well emergency repair drainage pipe, needs to carry out architecture advances on this basis, to be suitable for the displacement check valve that slant well emergency repair drainage pipe in colliery extends.
Summary of the invention
The object of this invention is to provide a kind of colliery slant well emergency repair drainage pipe and extend displacement check valve and application thereof, in order to solve when underground coal mine emergency repair draining is badly in need of extending drainage pipe, continuous several times is needed to close drainage valve, access new drainage pipe, the problem of new drainage valve is installed, pour in down a chimney problem when effectively preventing drainage pipe draining and when drainage pipe extends draining, realize the rapid of underground coal mine emergency repair draining rescue.
Problem of the present invention and object are achieved through the following technical solutions.
A kind of colliery slant well emergency repair drainage pipe extends displacement check valve, comprises drainage pipe and check valve thereof; It is characterized in that:
Described drainage pipe is on draining pump and drainage valve thereof, be communicated with lower drainage pipe, extension drainage pipe and upper drainage pipe successively, and offers a circumferential steel ball conduit inside upper drainage pipe with the flange body of extension drainage pipe;
Described check valve is displacement check valve, and the initial position of displacement check valve is inside the flange body of upper drainage pipe lower flange, and is embedded into the steel ball conduit internal fixtion of upper drainage pipe lower flange by the steel ball that circumference on outer valve is all established;
Described displacement check valve is corresponding to upper drainage pipe and the displacement check valve extending drainage pipe; Comprise outer valve and inner valve body, the outside of described outer valve is drum type structure, and inner side is cylinder trench structure, and the center line of outer valve top end is hinged with by butterfly plate rotating shaft nose the butterfly plate of butterfly plate rotating shaft and band return spring thereof; Described butterfly plate is two halves round structures, is open mode when draining, forms closed condition when the displacement of displacement check valve by butterfly plate return spring; The drum type structural plane of outer valve offers O type ring recess road and steel ball hole, and be nested with O type circle and steel ball with steel ball hole in O type ring recess road; Be connected with guiding bearing pin in the interior edge face central position of outer valve, and another termination of guiding bearing pin is provided with terraced steps;
Described inner valve body is the cylinder trench structure corresponding to outer valve, offers the guide sleeve corresponding to the bearing pin that leads in the central position of inner valve body, and guide sleeve end and guiding bearing pin terraced steps between be arranged with inner valve body return spring; Offer the trapezoidal elongated slot with chamfering in the outer side surface circumference of inner valve body, and form the slideway of steel ball rolling groove with the inner side surface of outer valve; Be connected with cross draw ring in the inner end wall of inner valve body, and have pull bar by pinned connection.
On the basis of technique scheme, further technological scheme is as follows.
The internal diameter of described inner valve body and described lower drainage pipe, the caliber ratio extending drainage pipe and upper drainage pipe are 3
:4.
The height of described outer valve and the ratio of diameter are 2
:5.
The degree of depth of described steel ball conduit and described upper drainage pipe lower flange, the wall ratio extending drainage pipe lower flange are 2
:5.
The return distance of described inner valve body return spring is 12mm.
The chamfering of the described trapezoidal elongated slot with chamfering is
.
A kind of above-mentioned colliery slant well emergency repair drainage pipe extends the application of displacement check valve, described application is when colliery slant well emergency repair draining, drainage pipe is badly in need of emergent operating mode when extending draining, embody rule accesses when extending drainage pipe between upper drainage pipe and lower drainage pipe, first draining pump and the drainage valve that is connected thereof are closed simultaneously, and upper drainage pipe is separated with lower drainage pipe, then on upper drainage pipe passes through, drainage pipe lower flange extends drainage pipe with extensional pipeline upper flange is connected, and the displacement check valve being installed in upper drainage pipe lower flange is pulled by pull bar, pull bar is by driving inner valve body along guide finger axial displacement during the displacement of cross draw ring, now inner valve body return spring is compressed, when inner valve body displacement, steel ball is embedded in steel ball rolling groove, now displacement check valve entirety is subjected to displacement, when displacement check valve entirety is pulled into extension drainage pipe lower flange, stop pulling, inner valve body is not now by external pull, but under the effect of inner valve body return spring, inner valve body is to extension drainage pipe lower flange intrinsic displacement, steel ball is extruded in the steel ball conduit of extension drainage pipe lower flange, now outer valve is locked by steel ball with extension drainage pipe lower flange, finally extension drainage pipe lower flange and lower drainage pipe upper flange are connected and fixed, the displacement and the pipeline that complete displacement check valve extend, then draining pump and the drainage valve that is connected thereof are opened simultaneously carry out draining.
Wherein: described drainage pipe extends the position access more piece extension drainage pipe that displacement is repeatedly moving displacement check valve, realizes the extension draining of the emergency repair drainage pipe of colliery slant well.
A kind of colliery slant well emergency repair drainage pipe realizing the present invention above-mentioned provided extends displacement check valve and application thereof, solve the deficiency that existing underground coal mine emergency repair drainage exists, compared with existing pipe drainage check valve, its advantage and good effect are: the outer valve of this check valve locks reliably by steel ball hole on steel ball and drainage pipe flange, the good airproof performance of butterfly plate under the effect of valve plate return spring, flow backwards without medium, ensure that feasibility when slant well drainage pipe extends and Security.
This check valve is installed in drainage pipe, in pipe, pull displacement check valve when extending drainage pipe carry out displacement, need not check valve be dismantled, repeatedly easy to operate during access more piece extension drainage pipe, under the slant well of colliery, a large amount of quality time has been saved in emergency repair draining.
This check valve structure is simple, mainly comprise outer valve, inner valve body, steel ball, butterfly plate and pull bar, the processing of these parts and assembling are simply, dismantle very convenient, maintenance cleaning fast, effectively save manpower and materials, achieve the object that underground coal mine extends the quick access Quick drainage of drainage pipe.
Accompanying drawing explanation
Fig. 1 is the structural representation of drainage pipe of the present invention and displacement check valve.
Fig. 2 is the plan structure schematic diagram of displacement check valve of the present invention.
Fig. 3 is the sectional structure schematic diagram A-A of displacement check valve of the present invention.
Fig. 4 is the local TV structure schematic diagram C of displacement check valve of the present invention.
Fig. 5 is the sectional structure schematic diagram B-B of displacement check valve of the present invention.
In figure: 1: draining pump; 2: drainage valve; 3: lower drainage pipe lower flange; 4: lower drainage pipe; 5: lower drainage pipe upper flange; 6: extend drainage pipe lower flange; 7: steel ball conduit; 8: extend drainage pipe; 9: extend drainage pipe upper flange; 10: upper drainage pipe lower flange; 11: displacement check valve; 12: upper drainage pipe; 13: butterfly plate; 14: butterfly plate return spring; 15: steel ball rolling groove; 16: trapezoidal elongated slot; 17: butterfly plate rotating shaft nose; 18: nut; 19: butterfly plate rotating shaft; 20: outer valve; 21: inner valve body; 22:O RunddichtringO; 23: steel wire seal ring; 24: steel ball; 25: cross draw ring; 26: pull bar; 27: bearing pin; 28: guiding bearing pin; 29: terraced steps; 30: inner valve body return spring; 31: inner valve body guide sleeve; 32: steel ball hole; 33:O type ring recess road.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further detailed.
A kind of colliery slant well emergency repair drainage pipe that the present invention is above-mentioned provided extends displacement check valve and application thereof, be the draining dedicated pipe of 150mm for drainage pipe internal diameter in slant well tunnel, existing colliery and development and Design, when main purpose is drift dewatering pipe drainage under the slant well of solution existing colliery, drainage pipe and extend the backward flow problem of water flow medium in drainage pipe, the measure taked is in drainage pipe, arrange removable check valve, carry out quick closedown, quick access, quick extension drainage pipe, realize the object of Quick drainage rescue, specific embodiments is as follows.
Embodiment 1
Slant well emergency repair drainage pipe in colliery extends an application for displacement check valve, and this application is when colliery inclination drainage underground, and during emergency repair draining especially under the slant well of colliery, drainage pipe is badly in need of emergent operating mode when extending draining.
First be when installing drainage pipe under the slant well of colliery, displacement check valve 11 is installed in drainage pipe in advance, embody rule extends drainage pipe 8 being provided with adjunction between the upper drainage pipe 12 of displacement check valve 11 and the lower drainage pipe 4 of drainage valve 2, as as described in accompanying drawing 1 and accompanying drawing 2, the drainage valve 2 of closing draining pump 1 first simultaneously and being connected, after by the Flange joint items of upper drainage pipe 12 with lower drainage pipe 4, and extend drainage pipe 8 at the upper drainage pipe lower flange 10 of the upper drainage pipe 12 taken apart with extension drainage pipe upper flange 9 is connected, when accessing extension drainage pipe 8, the displacement check valve 11 being installed in upper drainage pipe lower flange 10 is pulled by pull bar 26, pull bar 26 is by driving inner valve body 21 along the displacement of guiding bearing pin 28 during 25 displacement of cross draw ring, now inner valve body return spring 30 is compressed, when inner valve body 21 displacement, steel ball 24 is embedded in steel ball rolling groove 15, now displacement check valve 11 entirety is subjected to displacement, when displacement check valve 11 entirety is pulled into extension drainage pipe lower flange 6, stop pulling, inner valve body 21 is not now by external pull, but under the effect of inner valve body return spring 30, inner valve body 21 is to extension drainage pipe lower flange 6 intrinsic displacement, steel ball 24 is extruded in the steel ball conduit 7 of extension drainage pipe lower flange 6, now outer valve 20 is locked by steel ball 24, finally extension drainage pipe lower flange 6 and lower drainage pipe upper flange 5 are connected and fixed, complete the displacement of displacement check valve 11 and extend the extension of drainage pipe 8, then draining pump 1 and the drainage valve 2 that is connected thereof are opened simultaneously carry out draining.
In many tunnels, ponding is darker, when water leak accident is extremely serious, according to the actual conditions under the slant well of colliery, repeatedly moving displacement check valve 11 can be carried out to drainage pipe, repeatedly access extends drainage pipe 8, to meet the extension draining of emergency repair drainage pipe, realize the rescue object of safe, reliable, the Quick drainage of colliery inclination underworkings.
Embodiment 2
Implement above-mentioned a kind of displacement check valve extended for colliery slant well emergency repair drainage pipe, as described in accompanying drawing 1 and accompanying drawing 2, comprise drainage underground pipeline and check valve; Drainage pipe is wherein included in lower drainage pipe 4, extension drainage pipe 8 and upper drainage pipe 12 that draining pump 1 and drainage valve 2 thereof are communicated with successively, and offer a circumferential steel ball conduit 7 inside upper drainage pipe 12 with the flange body of extension drainage pipe 8, and be installed on displacement check valve 11.
As described in accompanying drawing 1 and accompanying drawing 2, check valve is wherein displacement check valve 11, the initial position of described displacement check valve 11 is mounted in inside the flange body of drainage pipe lower flange 10, and steel ball conduit 7 internal fixtion of upper drainage pipe lower flange 10 is embedded into by the steel ball 24 that circumference on outer valve 20 is all established, for when accessing extension drainage pipe 8, displacement check valve 11 opens dish version 13, stops flow backwards, and rear access extends drainage pipe 8 and extends drainage pipe in real time.
As described in accompanying drawing 2, accompanying drawing 3, accompanying drawing 4 and accompanying drawing 5, above-mentioned displacement check valve 11 is corresponding to upper drainage pipe 12 and the displacement check valve 11 extending drainage pipe 8; This displacement check valve 11 comprises outer valve 20 and inner valve body 21, and the outer side surface of outer valve 20 is wherein designed to drum type structure, and object is when drainage pipe extends, the displacement check valve 11 easily movement in drainage pipe; The inner side of outer valve 20 is designed to cylinder trench structure; The center line of outer valve 20 top end is hinged with the butterfly plate 13 of butterfly plate rotating shaft 19 and band return spring thereof by butterfly plate rotating shaft nose 17, described butterfly plate 13 is two halves round structures, becoming open mode under butterfly plate return spring 14 when draining by arranging in butterfly plate rotating shaft 19 acts on, forming closed condition when 11 displacement of displacement check valve by butterfly plate return spring 14; The drum type structural plane of outer valve 20 also offers O type ring recess road 33 and steel ball hole 32, and be nested with O type circle 22 and steel ball 24 with steel ball hole 32 in O type ring recess road 33; Be connected with guiding bearing pin 28 in the interior edge face central position of outer valve 20, and another termination of guiding bearing pin 28 is provided with terraced steps 29.
Inner valve body 21 is wherein cylinder trench structures corresponding to outer valve 20, offer the guide sleeve 31 corresponding to the bearing pin 28 that leads in the central position of inner valve body 21, and guide sleeve 31 end and guiding bearing pin 28 terraced steps 29 between be arranged with inner valve body return spring 30; Offer the trapezoidal elongated slot 16 with chamfering in the outer side surface circumference of inner valve body 21, and form the slideway of steel ball rolling groove 15 with the inner side surface of outer valve 20; Be connected with cross draw ring 25 in the inner end wall of inner valve body 21, and be connected with pull bar 26 by bearing pin 27, realize safe, reliable, the real-time displacement of displacement check valve 11.
Embodiment 3
On the basis of above-mentioned embodiment 1 and embodiment 2, further embodiment is that the internal diameter of inner valve body 21 and described lower drainage pipe 4, the caliber ratio that extends drainage pipe 8 and upper drainage pipe 12 are designed to 3
:4, being more suitable for drainage pipe internal diameter in slant well tunnel, colliery is that the draining pipe special of 150mm carries out draining.
Embodiment 4
On the basis of above-mentioned embodiment 1 and embodiment 2, further embodiment is that the height of outer valve 20 and diameter ratio are designed to 2
:5, carry out draining to be adapted to the draining pipe special that in slant well tunnel, colliery, drainage pipe internal diameter is 150mm.
Embodiment 5
On the basis of above-mentioned embodiment 1 and embodiment 2, further embodiment is that the degree of depth of steel ball conduit 7 and upper drainage pipe lower flange 10, the wall ratio that extends drainage pipe lower flange 6 are designed to 2
:5, to be adapted to the movement of the displacement check valve 11 arranged in drainage pipe.
Embodiment 6
On the basis of above-mentioned embodiment 1 and embodiment 2, further embodiment is that the return distance of inner valve body return spring 30 is designed to 12mm, to meet open mode and the closed condition of the dish plate 13 of displacement check valve 11.
Embodiment 7
On the basis of above-mentioned embodiment 1 and embodiment 2, further embodiment is, to meet the rolling requirement of steel ball 24, or according to the size of steel ball 24, select more suitable angle, to meet the rolling requirement of steel ball 24, realize fast moving, access extends the object of drainage pipe 8 fast.
Claims (8)
1. colliery slant well emergency repair drainage pipe extends a displacement check valve, comprises drainage pipe and check valve thereof; It is characterized in that:
Described drainage pipe on draining pump (1) and drainage valve (2) thereof, is communicated with lower drainage pipe (4) successively, extends drainage pipe (8) and upper drainage pipe (12), and offer a circumferential steel ball conduit (7) inside the flange body of upper drainage pipe (12) and extension drainage pipe (8);
Described check valve is displacement check valve (11), the initial position of displacement check valve (11) is inside the flange body of upper drainage pipe lower flange (10), and the steel ball (24) all established by the upper circumference of outer valve (20) is embedded into steel ball conduit (7) internal fixtion of upper drainage pipe lower flange (10);
Described displacement check valve (11) is the displacement check valve (11) corresponding to drainage pipe; Comprise outer valve (20) and inner valve body (21), the outside of described outer valve (20) is drum type structure, inner side is cylinder trench structure, and the center line of outer valve (20) top end is hinged with by butterfly plate rotating shaft nose (17) butterfly plate (13) of butterfly plate rotating shaft (19) and band return spring thereof; Described butterfly plate (13) is two halves round structures, is open mode when draining, forms closed condition when displacement check valve (11) displacement by butterfly plate return spring (14); The drum type structural plane of outer valve (20) offers O type ring recess road (33) and steel ball hole (32), and be nested with O type circle (22) and steel ball (24) with steel ball hole (32) in O type ring recess road (33); Be connected with guiding bearing pin (28) in the interior edge face central position of outer valve (20), and another termination of guiding bearing pin (28) is provided with terraced steps (29);
Described inner valve body (21) is corresponding cylinder trench structure with outer valve (20), offer in the central position of inner valve body (21) and the corresponding guide sleeve (31) of the bearing pin that leads (28), and be arranged with inner valve body return spring (30) between guide sleeve (31) end with the terraced steps (29) of the bearing pin (28) that leads; Offer the trapezoidal elongated slot (16) with chamfering in the outer side surface circumference of inner valve body (21), and form the slideway of steel ball rolling groove (15) with the inner side surface of outer valve (20); Be connected with cross draw ring (25) in the inner end wall of inner valve body (21), and be connected with pull bar (26) by bearing pin (27).
2. slant well emergency repair drainage pipe in colliery as claimed in claim 1 extends displacement check valve, it is characterized in that: the internal diameter of described inner valve body (21) is 3 with the caliber ratio of described drainage pipe
:4.
3. slant well emergency repair drainage pipe in colliery as claimed in claim 1 extends displacement check valve, it is characterized in that: the height of described outer valve (20) and the ratio of diameter are 2
:5.
4. slant well emergency repair drainage pipe in colliery as claimed in claim 1 extends displacement check valve, it is characterized in that: the described degree of depth of steel ball conduit (7) and the wall ratio of described drainage pipe are 2
:5.
5. slant well emergency repair drainage pipe in colliery as claimed in claim 1 extends displacement check valve, it is characterized in that: the return distance of described inner valve body return spring (30) is 12mm.
6. slant well emergency repair drainage pipe in colliery as claimed in claim 1 extends displacement check valve, it is characterized in that: the chamfering of the described trapezoidal elongated slot (16) with chamfering is
.
7. the application of a colliery slant well emergency repair drainage pipe extension displacement check valve as claimed in claim 1, it is characterized in that: described application is when colliery slant well emergency repair draining, drainage pipe is badly in need of emergent operating mode when extending draining, embody rule accesses to extend drainage pipe (8) between upper drainage pipe (12) and lower drainage pipe (4), first draining pump (1) and the drainage valve (2) that is connected thereof are closed simultaneously, and upper drainage pipe (12) is separated with lower drainage pipe (4), then drainage pipe (8) is extended by upper drainage pipe lower flange (10) with extensional pipeline upper flange (9) is connected at upper drainage pipe (12), and draw by pull bar (26) the displacement check valve (11) moving and be installed in drainage pipe lower flange (10), pull bar (26) drives inner valve body (21) along guiding bearing pin (28) displacement when being drawn moved by cross draw ring (25), now inner valve body return spring (30) is compressed, when inner valve body (21) displacement, steel ball (24) is embedded in steel ball rolling groove (15), now displacement check valve (11) entirety is subjected to displacement, displacement check valve (11) entirety drawn move on to extend drainage pipe lower flange (6) time, stop drawing moving, inner valve body (21) is not now by external pull, but under inner valve body return spring (30) effect, inner valve body (21) is to extension drainage pipe lower flange (6) intrinsic displacement, steel ball (24) is extruded in the steel ball conduit (7) of extension drainage pipe lower flange (6), now outer valve (20) is locked by steel ball (24) with extension drainage pipe lower flange (6), finally will extend drainage pipe lower flange (6) to be connected and fixed with lower drainage pipe upper flange (5), the displacement and the pipeline that complete displacement check valve (11) extend, then draining pump (1) and the drainage valve (2) that is connected thereof are opened simultaneously carry out draining.
8. slant well emergency repair drainage pipe in colliery as claimed in claim 7 extends the application of displacement check valve, it is characterized in that: described drainage pipe extends position access more piece extension drainage pipe (8) that displacement is repeatedly moving displacement check valve (11), realizes the extension draining of the emergency repair drainage pipe of colliery slant well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937971.3A CN105351574B (en) | 2015-12-15 | 2015-12-15 | Slant well emergency repair drainage pipeline in colliery extends displacement non-return valve and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937971.3A CN105351574B (en) | 2015-12-15 | 2015-12-15 | Slant well emergency repair drainage pipeline in colliery extends displacement non-return valve and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105351574A true CN105351574A (en) | 2016-02-24 |
| CN105351574B CN105351574B (en) | 2018-01-05 |
Family
ID=55327603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510937971.3A Expired - Fee Related CN105351574B (en) | 2015-12-15 | 2015-12-15 | Slant well emergency repair drainage pipeline in colliery extends displacement non-return valve and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105351574B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2459499Y (en) * | 2000-11-08 | 2001-11-14 | 黄显志 | Check valve for pipe line |
| KR20080032541A (en) * | 2006-10-10 | 2008-04-15 | 황용완 | Cushion check valve |
| CN102287558A (en) * | 2011-08-19 | 2011-12-21 | 青岛金黄海集装箱有限公司 | Check valve with safety valve |
| DE102013222764A1 (en) * | 2013-11-08 | 2015-02-26 | Thyssenkrupp Marine Systems Gmbh | check valve |
-
2015
- 2015-12-15 CN CN201510937971.3A patent/CN105351574B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2459499Y (en) * | 2000-11-08 | 2001-11-14 | 黄显志 | Check valve for pipe line |
| KR20080032541A (en) * | 2006-10-10 | 2008-04-15 | 황용완 | Cushion check valve |
| CN102287558A (en) * | 2011-08-19 | 2011-12-21 | 青岛金黄海集装箱有限公司 | Check valve with safety valve |
| DE102013222764A1 (en) * | 2013-11-08 | 2015-02-26 | Thyssenkrupp Marine Systems Gmbh | check valve |
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| Publication number | Publication date |
|---|---|
| CN105351574B (en) | 2018-01-05 |
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