CN105570478A - Stop valve - Google Patents
Stop valve Download PDFInfo
- Publication number
- CN105570478A CN105570478A CN201610122431.4A CN201610122431A CN105570478A CN 105570478 A CN105570478 A CN 105570478A CN 201610122431 A CN201610122431 A CN 201610122431A CN 105570478 A CN105570478 A CN 105570478A
- Authority
- CN
- China
- Prior art keywords
- valve
- rod
- tapered end
- valve rod
- stop
- 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
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/06—Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The invention discloses a stop valve. The stop valve comprises a valve body, a valve cover, a valve rod and a valve element. The valve cover is in screw joint with an upper opening of the valve body, the valve rod is inserted in a center through hole of the valve cover in a penetrating manner, and the valve element is arranged on a valve opening of the valve body; a lock head with the axial periphery in a special shape is arranged at the upper end of the valve rod, and a lock head protection sleeve is arranged at the upper end of the valve cover in a screw joint manner; a lock cover is arranged on an upper end opening of the lock head protection sleeve in a screw joint manner, and a guide cap is arranged on the lower portion of the valve rod in a screw joint manner; the valve rod is rotated to be capable of enabling the guide cap to do vertical movement in a valve cover through hole and a valve cavity, and an inner hole is formed in the bottom of the lower end of the valve rod and is connected with a valve element rod of the valve element in a sliding-fit manner; a spring is arranged on the upper portion of a bottom cover of the valve element, and the bottom end of the spring and a shaft shoulder of the upper portion of the valve element bottom cover are fixedly connected in a sleeved manner; and the top end face of the spring is in abut joint with the shoulder face of an opening portion of the lower end of the center through hole of the valve cover. The stop valve has the flowing and stopping functions of an existing stop valve body, and also has the valve locking and non-return functions.
Description
Technical field
The present invention relates to a kind of pipeline valve, especially relate to a kind of stop valve being provided with lock and check device.
Background technique
Stop valve is the valve generally used in a kind of civilian and industrial pipeline, be installed in pipeline for the circulation of flowing medium in pilot line or cut-off, as shown in Figure 5, existing stop valve comprises valve body a1, valve gap a2, valve rod 3, handwheel a4, pressure cap a5 and spool a6, described valve body is provided with the water inlet A of flowing medium circulation, water outlet B, the water intake of described valve body and the friendship neighbour of water outlet locate also to be provided with valve port a11, described valve gap is located at above valve body, pressure cap is located at above valve gap, described spool can on the valve port being located in valve body of folding, the middle and lower part of described valve rod is arranged in the central through bore of pressure cap and valve gap, and be spirally connected with the internal thread of bonnet central through hole bottom, endoporus and valve core rod sliding connection is provided with at valve rod lower end base, the upper end of valve rod is located at by described handwheel, during use, can with on ovable valve stem be in the through hole of pressure cap and valve gap by rotation hand wheel, lower movement, thus the spool of band ovable valve stem lower end and valve port are opened, close action, realize the function of circulation or cut-off.Its handwheel of above-mentioned stop valve is located at above valve body, in using process, any people that can touch stop valve can arbitrarily open or close, some occasion due to consider safety etc. in needs, to be limited the keying operation of stop valve in pipeline, common way locks to hand stop valve, adopt and hand stop valve is placed in locking can, key is controlled by professional workforce, during operation, with key operated locking can, hand stop valve can be touched, because locking can must additionally be arranged, pipeline cost is caused to increase, inconvenience is installed, time-consuming.Simultaneously, when existing stop valve is installed in pipeline, require that the valve gap portion of valve body must be vertically upward, during such use when the pipeline generation cutout phenomenon of valve inlet end causes decompression or outlet pressures rising to cause flowing medium to flow backwards, spool in valve body could utilize the weight of self to be covered by valve port vertically downward, prevent outlet end from using the flowing medium of after stain to be back to entrance point pipeline, if valve installation is improper and other reason easily causes the bar portion of spool to block, so that spool cannot be replied valve port to cover and be caused the backflow phenomenon of flowing medium to occur, so, generally loaded check valve is all added to prevent the generation of flowing medium backflow phenomenon in the pipeline having requirement, the cost of pipeline is so also made to increase and make troubles to installation.
Summary of the invention
Technical problem to be solved by this invention is the deficiency existed for prior art, and provides in self valve body of a kind of novel structure, stop valve the stop valve being provided with lock and check device.
The technical solution adopted in the present invention is: a kind of stop valve, comprises valve body and the valve body valve gap be spirally connected suitable for reading, and is interspersed in valve rod in bonnet central through hole, is arranged at the spool that valve inleting water mouth and water outlet oral sex neighbour locate on valve port; It is characterized in that: the head of described valve rod is provided with the tapered end that axial periphery is abnormity, and tapered end stretches out in the upper oral part of valve gap; The top of described valve rod is provided with convex shoulder, convex shoulder and the top of bonnet central through hole large aperture transitional surface omoplate are mutually by locating, the middle part of valve rod and bonnet central lead to heart through hole and are slidably matched, groove is provided with at the middle part axle side face of valve rod, circular seal ring is provided with in groove, the bottom of valve rod is bolted with guiding cap, and rotation valve rod can make guiding cap move up and down in valve gap through hole and valve pocket, and the lower end base of valve rod is provided with the valve core rod sliding connection of endoporus and spool; The bottom top of described spool is provided with spring, the bottom of spring is set with upper part of the cover shaft shoulder portion at the bottom of spool and is fixedly connected with, the top end of spring and the omoplate face of bonnet central through hole lower end oral area are mutually by being connected, and bottom the bottom of spool, riveting is fixedly connected with gasket seal and pad; The upper end of described valve gap arranges and is bolted with tapered end sheath, and the central through bore middle and lower part of tapered end sheath is provided with stop bit tabula, and the upper end-hole of tapered end sheath arranges and is bolted with locking closure.
Further, described bead bottom, tapered end sheath upper end is provided with two the first concentric cross through hole, and the locking closure position corresponded also is provided with two the second concentric cross through hole.
Further, the groove number of the groove that the middle part axle side face of described valve rod is provided with is 1 ~ 2 road.
Further, the axial peripheral shape of described tapered end is triangle.
Further, the axial peripheral shape of described tapered end is pentagon.
Further, the axial peripheral shape of described tapered end is do not wait Hexagon.
Further, the axial peripheral shape of described tapered end is profile of tooth.
Compared with prior art, the invention has the advantages that:
1, stop valve is provided with the block of valve of tapered end and tapered end sheath and locking closure composition, make opening and closing valve that special lockset supporting with it must be adopted to open and close valve, artificial random unlatching or the generation of throttle down phenomenon can be prevented, and, the block of valve and valve are set to one, lamps structure is simple, and cost is low, uses opening/shutting valve feature easily.Further, the tapered end sheath of the block of valve and locking closure are provided with corresponding cross through hole, and use when needing and can stamp lead sealing bar, the safety for valve has added one deck protection.
2, opening of stop valve, close when being rotated by valve rod by existing stop valve and directly do, lower movement drives the spool on valve port to open, the structure of closing, and change into and set up at valve rod and valve core chamber the spool that guiding cap forms together with spring and open, close structure, when valve rod is rotated, valve rod itself keeps original position, and only drive the guiding cap be spirally connected with it to do, the spool that lower movement controls on valve port is opened, close, and utilize the elastic force effect of spring to make spool occur automatically to cover closed by the valve port of valve when cutout phenomenon causes decompression or outlet pressures to raise and cause flowing medium to flow backwards at the pipeline of valve inlet end, realize non-return action function.
The spool of 3, stop valve is provided with spring, spool is subject to spring force effect and covers all the time on valve port, only have after in valve installation to pipeline, valve has been opened flowing medium when passing through in working order, spool just leaves valve port by fluid medium pressure effect and opens, so, also not resembling existing stop valve the setting angle of valve in pipeline to make the valve gap portion of valve body install vertically upward, stop valve of the present invention can be installed at any angle in pipeline does not affect use, brings convenience to installation and use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3-1 to Fig. 3-4 is several schematic shapes of valve rod head tapered end of the present invention;
Fig. 4 is the structural representation of the matching used special unlocking tool with the present invention;
Fig. 5 is the structural representation of existing stop valve.
Embodiment
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail.
Shown in Fig. 1 ~ Fig. 2, a kind of stop valve of the present invention, comprises valve body 1 and valve body 1 valve gap 2 be spirally connected suitable for reading, and is interspersed in valve rod 3 in valve gap 2 central through bore, is arranged at the spool 6 that valve inleting water mouth and water outlet oral sex neighbour locate on valve port 11.Square seal ring 12 is provided with inside described valve gap 2 and valve body 1 sealing part be spirally connected suitable for reading.The upper head of described valve rod 3 is provided with the tapered end 31 that axial periphery is abnormity, tapered end 31 stretches out in the upper oral part of valve gap 2, in actual product, the axial peripheral shape of tapered end 31 is as shown in Fig. 3-1 ~ 3-4, triangle or pentagon or Hexagon or the profile of tooth such as not can be set to as required, also other shapes can be set to, to adapt to different pipeline the distinguishing requirement used.The top of described valve rod 3 is provided with convex shoulder 32, the top large aperture transitional surface omoplate of convex shoulder 32 and valve gap 2 central through bore is mutually by locating, middle part and valve gap 2 central through bore of valve rod 3 are slidably matched, 1 ~ 2 road groove 33 is provided with at the middle part axle side face of valve rod 3, circular seal ring 34 is provided with in groove 33, the bottom of valve rod 3 is bolted with guiding cap 7, rotation valve rod 3 can make guiding cap 7 move up and down in valve gap 2 through hole and valve pocket, and the lower end base of valve rod 3 is provided with the valve core rod sliding connection of endoporus and spool 6.The bottom top of described spool 6 is provided with spring 8, the bottom of spring 8 is set with spool 6 end upper part of the cover shaft shoulder portion 61 and is fixedly connected with, the top end of spring 8 and omoplate face 21 phase of valve gap 2 central through bore lower end oral area are by being connected, and bottom the bottom of spool 6, riveting is fixedly connected with gasket seal 9 and pad 91.The upper end of described valve gap 2 arranges and is bolted with tapered end sheath 4, the central through bore middle and lower part of tapered end sheath 4 is provided with stop bit tabula 41, play the position-limiting action to valve rod 3, prevent from valve rod 3 moves, the upper end-hole of tapered end sheath 4 arranges and is bolted with locking closure 5, be provided with two the first concentric cross through hole 42 in bead bottom, tapered end sheath 4 upper end, locking closure 5 position corresponded also is provided with two the second concentric cross through hole 51.
The working principle of stop valve of the present invention: when stop valve of the present invention is connected to and pipeline uses, special unlocking tool supporting with it need be adopted to open and close valve, as shown in Figure 4, this special unlocking tool by sleeve 1., spanner 2., 3. link forms, lockhole is provided with 4. in sleeve bottom 1., lockhole shape 4. and size coordinate with the tapered end 31 shape formed objects of above-mentioned stop valve valve rod head, during use, first open the cap of stop valve, the sleeve of special unlocking tool is inserted in the tapered end sheath of stop valve, and the lockhole of sleeve bottom is inserted in the valve rod head tapered end contraposition of stop valve coordinate, rotate special unlocking tool spanner, valve rod can be made to rotate and drive guiding cap to do in valve gap through hole and valve pocket, lower movement, if rotate clockwise special unlocking tool spanner can make guiding cap be moved downward to guiding cap bottom end and spool bottom upper face touch lean on, valve port covers and makes valve be in closed cut-off state by the gasket seal that now spool bottom bottom connects, guiding cap can be made to move up if rotate counterclockwise special unlocking tool spanner, the bottom upper face of guiding cap bottom end and spool is departed from, now guiding cap is followed to move up at valve inlet end fluid medium pressure effect lower valve core, valve is opened and is in circulation status, when the pipeline generation cutout phenomenon connecting valve entrance point causes decompression or outlet pressures rising to cause flowing medium to flow backwards, under the spring force effect that then spool is established on its bottom top, automatically valve port is covered closed, realize non-return action function.
By reference to the accompanying drawings the embodiment of invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technological scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (7)
1. a stop valve, comprise valve body (1) and valve body (1) valve gap (2) be spirally connected suitable for reading, and be interspersed in valve rod (3) in valve gap (2) central through bore, be arranged at the spool (6) that valve inleting water mouth and water outlet oral sex neighbour locate on valve port (11), it is characterized in that: the upper head of described valve rod (3) is provided with the tapered end (31) that axial periphery is abnormity, and tapered end (31) stretches out in the upper oral part of valve gap (2), the top of described valve rod (3) is provided with convex shoulder (32), the top large aperture transitional surface omoplate of convex shoulder (32) and valve gap (2) central through bore is mutually by locating, middle part and valve gap (2) central through bore of valve rod (3) are slidably matched, groove (33) is provided with at the middle part axle side face of valve rod (3), circular seal ring (34) is provided with in groove (33), the bottom of valve rod (3) is bolted with guiding cap (7), rotation valve rod (3) can make guiding cap (7) do in valve gap (2) through hole and valve pocket, lower movement, the lower end base of valve rod (3) is provided with the valve core rod sliding connection of endoporus and spool (6), the bottom top of described spool (6) is provided with spring (8), the bottom of spring (8) is set with spool (6) end upper part of the cover shaft shoulder portion (61) and is fixedly connected with, the top end of spring (8) and the omoplate face (21) of valve gap (2) central through bore lower end oral area are mutually by being connected, and bottom the bottom of spool (6), riveting is fixedly connected with gasket seal (9) and pad (91), the upper end of described valve gap (2) arranges and is bolted with tapered end sheath (4), the central through bore middle and lower part of tapered end sheath (4) is provided with stop bit tabula (41), and the upper end-hole of tapered end sheath (4) arranges and is bolted with locking closure (5).
2. a kind of stop valve according to claim 1, it is characterized in that: described bead bottom, tapered end sheath (4) upper end is provided with two concentric the first cross through hole (42), the locking closure corresponded (5) position is also provided with two concentric the second cross through hole (51).
3. a kind of stop valve according to claim 1, is characterized in that: the groove number of the groove (33) that the middle part axle side face of described valve rod (3) is provided with is 1 ~ 2 road.
4. a kind of stop valve according to claim 1 and 2, is characterized in that: the axial peripheral shape of described tapered end (31) is triangle.
5. a kind of stop valve according to claim 1 and 2, is characterized in that: the axial peripheral shape of described tapered end (31) is pentagon.
6. a kind of stop valve according to claim 1 and 2, is characterized in that: the axial peripheral shape of described tapered end (31) is do not wait Hexagon.
7. a kind of stop valve according to claim 1 and 2, is characterized in that: the axial peripheral shape of described tapered end (31) is profile of tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610122431.4A CN105570478A (en) | 2016-02-24 | 2016-02-24 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610122431.4A CN105570478A (en) | 2016-02-24 | 2016-02-24 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105570478A true CN105570478A (en) | 2016-05-11 |
Family
ID=55880941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610122431.4A Pending CN105570478A (en) | 2016-02-24 | 2016-02-24 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105570478A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812953A (en) * | 2017-04-10 | 2017-06-09 | 永嘉品信阀门有限公司 | A kind of stop valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002081563A (en) * | 2000-09-05 | 2002-03-22 | Toto Ltd | Reverse-flow preventing device |
| CN201193735Y (en) * | 2008-04-07 | 2009-02-11 | 浙江铭仕管业有限公司 | Temperature-sensing valve with lock |
| CN203500589U (en) * | 2013-10-12 | 2014-03-26 | 浙江盾安阀门有限公司 | Magnetic induction stop check valve |
| CN203979534U (en) * | 2014-07-25 | 2014-12-03 | 福建省海洋阀门科技有限公司 | A kind of cut-off modulating valve with check function |
| JP2015143539A (en) * | 2014-01-31 | 2015-08-06 | ホット株式会社 | Check valve and valve having the same |
| CN205388159U (en) * | 2016-02-24 | 2016-07-20 | 宁波日安阀门有限公司 | Stop valve |
-
2016
- 2016-02-24 CN CN201610122431.4A patent/CN105570478A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002081563A (en) * | 2000-09-05 | 2002-03-22 | Toto Ltd | Reverse-flow preventing device |
| CN201193735Y (en) * | 2008-04-07 | 2009-02-11 | 浙江铭仕管业有限公司 | Temperature-sensing valve with lock |
| CN203500589U (en) * | 2013-10-12 | 2014-03-26 | 浙江盾安阀门有限公司 | Magnetic induction stop check valve |
| JP2015143539A (en) * | 2014-01-31 | 2015-08-06 | ホット株式会社 | Check valve and valve having the same |
| CN203979534U (en) * | 2014-07-25 | 2014-12-03 | 福建省海洋阀门科技有限公司 | A kind of cut-off modulating valve with check function |
| CN205388159U (en) * | 2016-02-24 | 2016-07-20 | 宁波日安阀门有限公司 | Stop valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812953A (en) * | 2017-04-10 | 2017-06-09 | 永嘉品信阀门有限公司 | A kind of stop valve |
| CN106812953B (en) * | 2017-04-10 | 2023-06-27 | 永嘉品信阀门有限公司 | Stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160511 |
|
| WD01 | Invention patent application deemed withdrawn after publication |