CN108953700A - A kind of pipe internal pressure automatic flow-stop device and its application - Google Patents
A kind of pipe internal pressure automatic flow-stop device and its application Download PDFInfo
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- CN108953700A CN108953700A CN201811018355.8A CN201811018355A CN108953700A CN 108953700 A CN108953700 A CN 108953700A CN 201811018355 A CN201811018355 A CN 201811018355A CN 108953700 A CN108953700 A CN 108953700A
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- flow hole
- pipe
- flow
- spool
- internal pressure
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- 238000007789 sealing Methods 0.000 claims description 24
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- 230000014759 maintenance of location Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 26
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 15
- 239000012530 fluid Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000011900 installation process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
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- 229960000212 aminophenazone Drugs 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- 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
- F16L29/02—Joints with fluid cut-off means with a cut-off device in one of the two pipe ends, the cut-off device being automatically opened when the coupling is applied
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention provides a kind of pipe internal pressure automatic flow-stop devices, including valve body, the through flow hole being arranged on valve body and spool for opening and blocking through flow hole, utilize pressure medium in pipe, it pushes spool to move along medium flow direction in pipe automatically to block through flow hole, utilize active force outside pipe, overcome pressure medium in pipe, spool moves along the opposite direction that medium in pipe flows to and opens through flow hole.It can be realized the automatic plugging from pipe end, the device utilizes the hydraulic pressure in water pipe, stopped like that using the displacement that spring carries out baffle without traditional water check valve, leak caused by spring breaking down is effectively prevented, apparatus structure is simpler, and water-stagnating effect is good, without forming disassembly, it is mounted directly other water fetching devices such as faucet and automatically turns on plug, when removing other devices such as faucet, plug automatic plugging.
Description
Technical field
The present invention relates to pipeline water check valve technical field, more particularly to it is a kind of need not by spring force, using in pipe
The water check valve, in particular to a kind of pipe internal pressure automatic flow-stop device of pressure automatic water stopping and its application.
Background technique
It is well known that there are many current antipriming, the most common tap, check valve etc. are exactly one kind of antipriming
The form of expression.
The water check valve of tap series belongs to except a kind of structure solenoid valve for needing external force to be just able to achieve sealing, single
It is a kind of without external force to valve, spring built in inner utilization realizes the antipriming of pipe plugging.
Check-valves either threeway or two at present on the market is logical, is substantially inside and is equipped with spool, then spool edge
Valve rod displacement, the spring that the power for blocking pipe is internally sourced use for a long time, spring gets rusty, one side shadow
Xiangshui County's matter, while it being easily broken off failure, gently then there is closure mouth and drips, then occurs the phenomenon that can not blocking again.
At present in the pipe installation process such as hot-water heating, the closure of pipe end temporarily or permanently can all be twisted in pipe end
Enter plug, plug some is using being threadedly coupled, and some is using being thermally connected, and no matter which kind of is connected, and when reopening, needs to seal
It is stifled to remove, then in other water fetching devices such as access tap, in this process, it is also necessary to close the main valve on pipeline
Fall, to facilitate the installation of the water fetching devices such as tap, while also avoiding the waste of tap water resource during the installation process, but
It is the main valve installation site on general pipeline than more covert, some is additionally arranged at outdoor certain places, operates very cumbersome.
There are also a kind of situation, tap use throughout the year may generate drainage, will cause water if repaired not in time
The waste of resource, at present traditional water pipe when in use, generally in elbow or the upper accepting water of threeway faucet or other intake equipments,
Generally there are two types of forms for elbow or threeway, and a kind of to have nested structure to be internal, another kind is light wall construction, according to different
Requirement uses different forms, can be used directly with nested, is thermally connected without nested can using or external
Thread bush etc..
Sealing described above is only a kind of representative of working fluid, a series of liquid medium or gas medium
Flowing is common to the description and expression of this programme.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to existing deficiencies in the technology, provide a kind of pipe internal pressure from
Dynamic fluid stopping device and its application:
It can be realized the automatic plugging from pipe end, the device is sharp like that without traditional water check valve using the hydraulic pressure in water pipe
Stopped with the displacement that spring carries out baffle, effectively prevent leak caused by spring breaking down, apparatus structure is simpler, only
Water effect is good.
Without being mounted directly other water fetching devices such as faucet and automatically turning on plug, remove other dresses such as faucet into disassembly
When setting, plug automatic plugging, equipment is located at pipe end, when installing other devices such as faucet, without dismantling plug, directly
The connection using other devices and nozzle end such as faucets is connect, is generally threadedly coupled, is screwed into using other devices such as faucet
In pipeline, and push rod is pushed, to open spool using push rod, realizes and open pipeline.
Installation process is time saving and energy saving without turning off pipeline main valve, improves construction efficiency, and during disassembly is leading, faucet is even
Socket part position screws out outward, and push rod external force gradually cancels, and pressure medium pushes spool mobile, so that sealing ring is displaced outwardly, with master
Body sealing cooperation, and it is provided with guide rod, realize displacement, waterstop sealing effect is good.
The antipriming, which can be individually attached, to be applied in water pipe end, the external screw thread and existing pipe fitting that are equipped with using outside or
What connector embedded is threadedly engaged use, does not influence installing and using for faucet, reserves enough assembly thread length installation spaces, fills
It can be adjusted according to actual requirement with size.
The antipriming can also integrally be used with pipe or connector, as standard embedded component, with the pipe fittings standard such as threeway, elbow
Part carries out secondary manufacture, and the standard components such as threeway, the elbow with water stopping function are made.
The technical solution of the invention is as follows, provides a kind of following pipe internal pressure automatic flow-stop device, including valve body, setting exist
Through flow hole on valve body and the spool for opening and blocking through flow hole push the automatic edge of spool using pressure medium in pipe
Manage in medium flow direction movement through flow hole is blocked, using active force outside pipe, overcome pressure medium in pipe, spool in pipe along being situated between
Mass flow to opposite direction mobile through flow hole is opened.
The technical program has similar place with traditional non-return valve operational principle, but is essentially different,
Check valve is to flow back in order to prevent, is stopped using spring pressure etc. to the medium discharged, when overpressure is greater than spring
When pressure, overpressure pushes spool open, realizes the unlatching of pipeline, and the technical program is for pipe end, either gas
Or the output end of liquid, the in order to prevent leakage of liquid or gas, the pressure in pipeline is bigger, and plugging effect is better, opens
When need effect with external force.
Preferably, the through flow hole includes two sections, respectively the first through flow hole and the second through flow hole, the first through flow hole and
The limitation spool limited step mobile towards the second through flow hole direction is equipped between second through flow hole.
Preferably, the spool is equipped with the push rod that can push spool mobile under external force, the push rod position
Extend in through flow hole, and towards the opposite of spool compression face.
Preferably, being equipped with sealing device between the spool and the first through flow hole, the sealing device is to be sleeved on valve
On core and with sealing shroud spool mobile sealing ring or be embedded in the first through flow hole.
Preferably, the first through flow hole inner wall is equipped with taper, the internal diameter of the first through flow hole is from far from the second through flow hole
One gradually become smaller laterally adjacent to the side of the second through flow hole.
Preferably, first through flow hole is one or more of round, ellipse or polygon, the spool can
It is slided in the first through flow hole, second through flow hole is one or more of round, ellipse or polygon.
Preferably, being symmetrically arranged with the reamer for being oriented to and sliding for push rod on the second through flow hole, the push rod is located at
Sliding in reamer, the push rod are equipped with retention bead far from one end tail portion of spool, and the valve body, which is equipped with, is used for limit convex
The groove of storage is played, the retention bead and boss generate interference, limit the moving distance of push rod.
Preferably, the through flow hole is located on spindle of valve body line, the valve body is boss-shaped structure, including two sections of outsides
The different boss of size, larger-size one section of boss is equipped with external screw thread on the valve body.
Preferably, the flow area of the first through flow hole is greater than the flow area of the second through flow hole, first through flow hole
For circle, the spool is the baffle that can be moved in the first through flow hole, and the baffle is circle, and second through flow hole is
Hexagon.
As further to the development and application of the device, the valve body is additionally provided with far from one end of spool for matching with pipe fitting
The fixed station for closing installation, is integrated design between the fixed station and valve body, the fixed station is cylinder, in circular cone, pyramid
One or more, the fixed station outer surface is equipped with screw thread or anticreep protrusion, the valve body with fixed station are used for pipe fitting inner wall
Inserts, pipe fitting manufacture when be made with pipe fitting integral structure, the pipe fitting includes bend pipe tools, tee pipe fitting, four-way pipe fitting
One of.
Using the technical program the utility model has the advantages that
1, it can be realized the automatic plugging from pipe end, the device is such without traditional water check valve using the hydraulic pressure in water pipe
Being stopped using the displacement that spring carries out baffle, effectively prevents leak caused by spring breaking down, apparatus structure is simpler,
Water-stagnating effect is good.
2, without being mounted directly other water fetching devices such as faucet and automatically turning on plug, it is other to remove faucet etc. into disassembly
When device, plug automatic plugging, equipment is located at pipe end, when other devices such as faucet are installed, it is not necessary that plug is dismantled,
It directly using the connection of other devices and nozzle end such as faucet, is generally threadedly coupled, other devices such as faucet is utilized to screw in
It is pushed into pipeline, and by push rod, to open spool using push rod, realizes and open pipeline.
3, installation process is time saving and energy saving without turning off pipeline main valve, improves construction efficiency, during disassembly is leading, faucet
Connecting portion screws out outward, and push rod external force gradually cancels, and it is mobile that pressure medium pushes spool, so that sealing ring is displaced outwardly, with
Body seal cooperation, and it is provided with guide rod, realize displacement, waterstop sealing effect is good.
4, the antipriming, which can be individually attached, applies in water pipe end, the external screw thread and existing pipe fitting that are equipped with using outside or
What person's connector embedded is threadedly engaged use, does not influence installing and using for faucet, reserves enough assembly thread length installation spaces,
Fitted position can be adjusted according to actual requirement.
5, the antipriming can also integrally be used with pipe or connector, as standard embedded component, with the pipe fittings mark such as threeway, elbow
Quasi- part carries out secondary manufacture, and the standard components such as threeway, the elbow with water stopping function are made.
Detailed description of the invention
Fig. 1 is the structural schematic diagram one (open position) of pipe internal pressure automatic flow-stop device.
Fig. 2 is the structural schematic diagram two (open position) of pipe internal pressure automatic flow-stop device.
Fig. 3 is the structural schematic diagram three (fluid stopping state) of pipe internal pressure automatic flow-stop device.
Fig. 4 is the structural schematic diagram four (fluid stopping state) of pipe internal pressure automatic flow-stop device.
Fig. 5 is pipe internal pressure automatic flow-stop device schematic diagram of internal structure (open position).
Fig. 6 is pipe internal pressure automatic flow-stop device schematic diagram of internal structure (fluid stopping state).
Fig. 7 is the decomposition diagram of pipe internal pressure automatic flow-stop device.
Fig. 8 is that pipe internal pressure automatic flow-stop device individually uses structural schematic diagram (fluid stopping shape with internal thread elbow
State).
Fig. 9 is that pipe internal pressure automatic flow-stop device individually uses structural schematic diagram (through-flow shape with internal thread elbow
State).
Figure 10 is the structural schematic diagram that pipe internal pressure automatic flow-stop device is used as pipe fitting accessory.
Figure 11 is the schematic diagram of internal structure that pipe internal pressure automatic flow-stop device is used as pipe fitting accessory.
Figure 12 is the structural schematic diagram (open position) that pipe internal pressure automatic flow-stop device is used as pipe fitting accessory and threeway cooperation.
Figure 13 is the structural schematic diagram (fluid stopping state) that pipe internal pressure automatic flow-stop device is used as pipe fitting accessory and threeway cooperation.
Figure 14 is the structural schematic diagram (fluid stopping state) that pipe internal pressure automatic flow-stop device is used as pipe fitting accessory and elbow cooperation.
Figure 15 is the structural schematic diagram (open position) that pipe internal pressure automatic flow-stop device is used as pipe fitting accessory and elbow cooperation.
Specific embodiment
For purposes of illustration only, with reference to the accompanying drawing, pipe internal pressure automatic flow-stop device and its application to invention elaborate.
Implement 1:
As shown in figures 1 to 9, a kind of pipe internal pressure automatic flow-stop device, including valve body 1, the through flow hole being arranged on valve body 12, with
And the spool 3 for opening and blocking through flow hole 2 pushes spool 3 to flow to automatically along medium in pipe using pressure medium in pipe
Movement blocks through flow hole 2, using active force outside pipe, overcomes pressure medium in pipe, the negative side that spool 3 is flowed to along medium in pipe
Through flow hole 2 to be opened to mobile, the technical program is to be used for pipe end, the either output end of gas or liquid, in order to
The leakage of liquid or gas is prevented, the pressure in pipeline is bigger, and plugging effect is better, and when unlatching needs the effect with external force, institute
Stating through flow hole 2 includes two sections, and respectively the first through flow hole 2.1 and the second through flow hole 2.2, the first through flow hole 2.1 and second is through-flow
Limitation spool 3 limited step 4 mobile towards 2.2 direction of the second through flow hole is equipped between hole 2.2, when the pressure medium in pipeline
When being applied on spool, the compression face of spool makes spool mobile under the effect of the pressure, and spool is pushed into the first through flow hole
It is interior, but be not undying promotion, setting limited step plays barrier effect, and the spool 3 is equipped under external force
The push rod 5 that spool 3 can be pushed mobile, the push rod 5 are located in through flow hole 2, and extend towards the opposite of 3 compression face of spool,
The effect of push rod is spool in addition, push rod also adds a booster action primarily to the later period uses when opening spool
Movement provides guiding, prevents spool from accepting offset caused by unevenness, is equipped between the spool 3 and the first through flow hole 2.1 close
Seal apparatus 6, the sealing device 6 are to be sleeved on spool 3 and the sealing ring mobile with spool 3, sealing ring further increase
It is through-flow to be embedded in first it is also recognized that sealing device can be used as fixed mode for sealing effect, certainly, those skilled in the art
Sealing shroud in hole 2.1,2.1 inner wall of the first through flow hole are equipped with taper, and the internal diameter of the first through flow hole 2.1 leads to from far from second
The one of discharge orifice 2.2 gradually becomes smaller laterally adjacent to the side of the second through flow hole 2.2, and general taper is 5 ± 2 ° of angle settings, does not also limit to
In the angle, specifically related with field of employment, 10 degree, 20 degree, 30 degree even 45 degree are all possible to, in order to better close
Also taper can be arranged in first through hole in envelope, and pressure medium is higher, pushes spool movement tighter, so that sealing device deformation extent
Bigger, sealing effect is better, and first through flow hole 2.1 is one or more of round, ellipse or polygon, the valve
Core 3 can slide in the first through flow hole 2.1, and second through flow hole 2.2 is one of round, ellipse or polygon or several
Kind, it uses circular design, but generally in order to further protect, and the demand in more places, is also designed to its she
Cross sectional shape, such as square, the other polygonized structures of diamond shape can also be some composite figures, such as rectangle and circle certainly
Combination etc., the reamer 7 for being oriented to and sliding for push rod 5 is symmetrically arranged on the second through flow hole 2.2, push rod can be two
Group can also be three groups, four groups or other multiple groups, on the one hand guarantee push rod thrust and intensity, it is ensured that can push away internal spool
It opens, on the other hand considers the difficulty and guidance capability of manufacture, it is separate that the push rod 5 is located at sliding, the push rod 5 in reamer 7
One end tail portion of spool 3 is equipped with retention bead 8, the valve body 1 is equipped with the groove 11 stored for retention bead 8, the limit
Position protrusion 8 generates interference with valve body 1, limits the moving distance of push rod 5, the through flow hole 2 is located on 1 central axes of valve body, described
Valve body 1 is boss-shaped structure, including the different boss of two sections of external dimensions, on the valve body 1 on larger-size one section of boss
Equipped with external screw thread 9, the flow area of the first through flow hole 2.1 is greater than the flow area of the second through flow hole 2.2, first through flow hole
2.1 be circle, and the spool 3 is the baffle that can be moved in the first through flow hole 2.1, and the baffle is round, described second
Through flow hole 2.2 is hexagon.The device can be directly used cooperatively with internal thread pipe fitting, and when use directly utilizes outer spiral shell
The screw-internal thread fit of line 9 and pipe fitting is installed, and is screwed into inside pipe fitting through the device, so that push rod end is located at pipe fitting
It is interior, to facilitate the installation of the water fetching devices such as later period faucet.
Embodiment 2:
As shown in Figure 10-15: pipe internal pressure automatic flow-stop device is not only a kind of use value of independent accessory, according to product
Design feature, the further research and development of pipe internal pressure automatic flow-stop device and application, the valve body 1 are additionally provided with far from one end of spool 3
Fixed station 10 for being coupled with pipe fitting, is integrated design between the fixed station 10 and valve body 1, the fixed station 10 is
One or more of cylinder, circular cone, pyramid, 10 outer surface of fixed station are equipped with screw thread or anticreep protrusion, sealing dress
Setting can also integrally use with pipe or connector, as standard embedded component, carry out secondary manufacture with pipe fittings standard components such as threeway, elbows,
The standard components such as threeway, the elbow with water stopping function are made.
In the above-described embodiments, preferred forms of the invention are described, it is obvious that in invention structure of the invention
Under think of, many variations can be still made, here, it should be noted that any change made under inventive concept of the invention all will
It falls within the scope of protection of the present invention.
Claims (10)
1. a kind of pipe internal pressure automatic flow-stop device including valve body (1), the through flow hole (2) being arranged on valve body (1) and is used for
The spool (3) of through flow hole (2) is opened and blocks, it is characterized in that: pushing spool (3) automatically along pipe using pressure medium in managing
Interior medium flow direction is mobile to block through flow hole (2), using active force outside pipe, overcomes pressure medium in pipe, spool (3) is along in pipe
The opposite direction of medium flow direction is mobile to open through flow hole (2).
2. pipe internal pressure automatic flow-stop device according to claim 1, it is characterized in that: the through flow hole (2) includes two sections, point
Not Wei the first through flow hole (2.1) and the second through flow hole (2.2), be equipped between the first through flow hole (2.1) and the second through flow hole (2.2)
Limit spool (3) limited step (4) mobile towards the second through flow hole (2.2) direction.
3. pipe internal pressure automatic flow-stop device according to claim 2, it is characterized in that: the spool (3) is equipped in external force
The lower push rod (5) that spool (3) can be pushed mobile of effect, it is interior that the push rod (5) is located at through flow hole (2), and towards spool (3) by
The opposite of pressure surface extends.
4. pipe internal pressure automatic flow-stop device according to claim 2, it is characterized in that: the spool (3) and the first through flow hole
(2.1) sealing device (6) are equipped between, the sealing device (6) is to be sleeved on spool (3) and as spool (3) are mobile
Sealing ring or the sealing shroud being embedded in the first through flow hole (2.1).
5. pipe internal pressure automatic flow-stop device according to claim 2, it is characterized in that: first through flow hole (2.1) inner wall
Equipped with taper, the internal diameter of the first through flow hole (2.1) is from one far from the second through flow hole (2.2) laterally adjacent to the second through flow hole
(2.2) side gradually becomes smaller.
6. pipe internal pressure automatic flow-stop device according to claim 2, it is characterized in that: first through flow hole (2.1) is circle
One or more of shape, ellipse or polygon, the spool (3) can be slided in the first through flow hole (2.1), and described second
Through flow hole (2.2) is one or more of round, ellipse or polygon.
7. pipe internal pressure automatic flow-stop device according to claim 3, it is characterized in that: symmetrically being set on the second through flow hole (2.2)
There is the reamer (7) for being oriented to and sliding for push rod (5), the push rod (5) is located at sliding, the push rod (5) in reamer (7)
One end tail portion far from spool (3) is equipped with retention bead (8), and the retention bead (8) and valve body (1) generate interference, and limitation pushes away
The moving distance of bar (5), the valve body (1) are equipped with the groove (11) for retention bead (8) storage.
8. pipe internal pressure automatic flow-stop device according to claim 1, it is characterized in that: the through flow hole (2) is located at valve body (1)
On central axes, the valve body (1) is boss-shaped structure, including the different boss of two sections of external dimensions, size on the valve body (1)
Biggish one section of boss is equipped with external screw thread (9).
9. pipe internal pressure automatic flow-stop device according to claim 2, it is characterized in that: the through-flow face of the first through flow hole (2.1)
Product is greater than the flow area of the second through flow hole (2.2), and first through flow hole (2.1) is circle, and the spool (3) is that can move
It moves to the baffle in the first through flow hole (2.1), the baffle is circle, and second through flow hole (2.2) is hexagon.
10. a kind of application of pipe internal pressure automatic flow-stop device, it is characterized in that: the valve body (1) is also set far from the one end of spool (3)
There is the fixed station (10) for being coupled with pipe fitting, is integrated design between the fixed station (10) and valve body (1), it is described solid
Determining platform (10) is one or more of cylinder, circular cone, pyramid, and fixed station (10) outer surface is equipped with screw thread or anticreep is convex
Rise, with fixed station (10) valve body (1) be used for pipe fitting inner wall inserts, pipe fitting manufacture when be made with pipe fitting integral structure,
The pipe fitting includes one of bend pipe tools, tee pipe fitting, four-way pipe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811018355.8A CN108953700B (en) | 2018-09-03 | 2018-09-03 | Automatic flow stopping device for pipe internal pressure and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811018355.8A CN108953700B (en) | 2018-09-03 | 2018-09-03 | Automatic flow stopping device for pipe internal pressure and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108953700A true CN108953700A (en) | 2018-12-07 |
| CN108953700B CN108953700B (en) | 2024-05-17 |
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ID=64475573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811018355.8A Active CN108953700B (en) | 2018-09-03 | 2018-09-03 | Automatic flow stopping device for pipe internal pressure and application thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN108953700B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999334A (en) * | 2019-03-14 | 2019-07-12 | 广州市一森生物科技有限公司 | A kind of Medical check valve and its injecting method using negative pressure return |
| CN113464690A (en) * | 2021-05-31 | 2021-10-01 | 中铁建华南建设有限公司 | A switching structure and slip casting equipment for slip casting equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010004778A1 (en) * | 2010-01-14 | 2011-07-21 | MAHLE International GmbH, 70376 | Valve e.g. discharge valve for controlling oil flow through outlet opening of crank case ventilation system in motor vehicle, has valve plate arranged at guided housing by clip connection to control central passage of housing |
| CN202402718U (en) * | 2011-12-19 | 2012-08-29 | 杨玉宁 | Check valve for pipeline |
| CN202746680U (en) * | 2012-08-30 | 2013-02-20 | 台州阳春机电有限公司 | Stop valve of self-priming pump |
| CN208670168U (en) * | 2018-09-03 | 2019-03-29 | 黄艺强 | A kind of pipe internal pressure automatic flow-stop device |
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2018
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| DE102010004778A1 (en) * | 2010-01-14 | 2011-07-21 | MAHLE International GmbH, 70376 | Valve e.g. discharge valve for controlling oil flow through outlet opening of crank case ventilation system in motor vehicle, has valve plate arranged at guided housing by clip connection to control central passage of housing |
| CN202402718U (en) * | 2011-12-19 | 2012-08-29 | 杨玉宁 | Check valve for pipeline |
| CN202746680U (en) * | 2012-08-30 | 2013-02-20 | 台州阳春机电有限公司 | Stop valve of self-priming pump |
| CN208670168U (en) * | 2018-09-03 | 2019-03-29 | 黄艺强 | A kind of pipe internal pressure automatic flow-stop device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109999334A (en) * | 2019-03-14 | 2019-07-12 | 广州市一森生物科技有限公司 | A kind of Medical check valve and its injecting method using negative pressure return |
| CN113464690A (en) * | 2021-05-31 | 2021-10-01 | 中铁建华南建设有限公司 | A switching structure and slip casting equipment for slip casting equipment |
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| CN108953700B (en) | 2024-05-17 |
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