CN1807951A - Valve with locking mechanism - Google Patents
Valve with locking mechanism Download PDFInfo
- Publication number
- CN1807951A CN1807951A CNA2005101041654A CN200510104165A CN1807951A CN 1807951 A CN1807951 A CN 1807951A CN A2005101041654 A CNA2005101041654 A CN A2005101041654A CN 200510104165 A CN200510104165 A CN 200510104165A CN 1807951 A CN1807951 A CN 1807951A
- Authority
- CN
- China
- Prior art keywords
- screw
- valve
- handle
- locking framework
- valve body
- 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
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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
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/04—Means to prevent accidental or unauthorised actuation yieldingly resisting the actuation
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
- 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)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention provides a valve with locking mechanism comprising a valve body, a handle and a valve stem movably coupled with the valve body, characterized in that a locking mechanism is arranged between the valve body and the handle for fixing the two as a whole. The locking mechanism is provided with at least one screw hole respectively on the valve body and the handle, and the screw hole is bolt jointed with a locking screw which can be unlocked with a special tool. The invention locks the valve body and the handle at a given position with the locking mechanism and allows unlocking with just a special tool, thereby avoiding unnecessary trouble and accident resulting from people opening or closing the valve at will.
Description
Technical field
The present invention relates to valve, specifically is a kind of valve mechanism that all has locking framework when valve under the state of opening or closing.
Background technique
Valve is installed and used on the pipeline of carrying various fluids or gas usually.Existing valve mechanism is that ball valve or gate valve body and handle are linked together, and rotatable handle can the opening and closing pipeline.As long as but this valve anyone with hand or there are general utility tools such as spanner just can arbitrarily open valve.This is for some high risk industries, may be because people's carelessness, or the valve that uses for family, and sometimes because of children's curiosity, opened the valve that should not open and brought fatal security incident; In addition, in our daily life, when user's malice is not paid time-consuming, because valve can arbitrarily be opened, the way that Gas Company and water utility can't take to die or cut off the water supply is warned the user, can only it continue to use at one's discretion, make these companies suffer economic loss.
Summary of the invention
The purpose of this invention is to provide the locked valve of a kind of energy, make handle and valve body locked and can not do relative movement at assigned position.
In order to achieve the above object, the valve with locking framework of the present invention, comprise valve body and with the handle and the valve rod of its flexible connection, be provided with at least one locking framework that both are fixed between described valve body and the handle.
Described locking framework comprises the stop block that the control handle that is positioned on the valve body opens and closes, and is positioned to stretch out one first lock screw outside this screw with this stop block one side shaft to an adjacent screw and with this screw bolt and rod end on the handle.The bar section of described first lock screw is divided into thread section and polished rod section, and described polished rod section is stretched out in screw.Outside below is extended with the flange that blocks in the stop block outer surface on the body of handle.
According to a preferred version of the present invention, described locking framework comprises the stop block that the control handle that is positioned on the valve body opens and closes, an inner bolt hole of axially offering in this stop block, with the handle of this screw axial alignment on screw, and reach first lock screw that all is spirally connected with this screw.
According to another preferred version of the present invention, described locking framework also comprise on the valve body with stop block be oppositely arranged one radially hole slot, matching with the corresponding screw that radially is provided with on handle of this hole slot and with this screw merges second lock screw that can stretch in this hole slot, described hole slot is light groove or screw.
According to another preferred version of the present invention, the corresponding position that this locking framework further is included in described handle and valve body is provided with the upper and lower locking plate with hole respectively, and it is locked with valve body and handle that a padlock passes the hole of locking plate.
According to a preferred embodiment of the present invention, described locking framework comprises the stop block of the control handle switching that is positioned on the valve body, axially have a unthreaded hole in the stop block, insert a spring in this unthreaded hole, with the coaxial unthreaded hole that is provided with of this unthreaded hole, open a screw respectively in the both sides of this unthreaded hole on the described handle, a cylinder is inserted in the unthreaded hole, one has the upper surface that is overlaid on this unthreaded hole and screw with the arc pad in the hole of screw axial alignment, and two first lock screw are passed hole and screw bolt respectively.
According to another preferred embodiment of the present invention, described handle is connected with the valve rod top, the thread section of valve rod below and the following thread section of valve interior wall are spirally connected, the last thread section of valve interior wall and a fastening piece bolt, the upper and lower thread section direction of this valve body is opposite, this fastening piece top radially is oppositely arranged two screws that run through, the corresponding annular groove that is provided with on the valve rod outer wall with this screw, two first lock screw and screw are spirally connected and stretch in the annular groove, and described annular groove is by substituting with the corresponding screw of screwhole position.
The present invention locks together valve body and handle by locking framework at assigned position, and can only just can open by special tool, thereby avoids people arbitrarily to open or close valve and cause unnecessary trouble and accident.
Description of drawings
Fig. 1 is the first embodiment of the invention exploded view, has shown the locking framework that is installed on the ball valve;
Fig. 2 is the sectional view after the first embodiment of the invention assembling, and wherein handle partly is a partial cutaway;
Fig. 3 is the exploded view of second embodiment of the invention;
Fig. 4 is the sectional view after the second embodiment of the invention assembling, and wherein handle partly is a partial cutaway;
Fig. 5 is the partial sectional view of third embodiment of the invention;
Fig. 6 is the exploded view of fourth embodiment of the invention, has shown the locking framework that is installed on the gate valve;
Fig. 7 is the erection drawing of fourth embodiment of the invention;
Fig. 8 is the exploded view of fifth embodiment of the invention;
Fig. 9 is the erection drawing of fifth embodiment of the invention;
Figure 10 is the sixth embodiment of the invention stereogram;
Figure 11 is the sixth embodiment of the invention exploded view;
Figure 12 is a partial, longitudinal cross-sectional embodiment illustrated in fig. 10;
Figure 13 is a partial cross sectional view embodiment illustrated in fig. 10;
Figure 14 is the seventh embodiment of the invention structural drawing;
Figure 15 is the eighth embodiment of the invention exploded view;
Figure 16 is a partial sectional view embodiment illustrated in fig. 15;
Figure 17 is the ninth embodiment of the invention structural drawing;
Figure 18 is the tenth embodiment of the invention structural drawing;
Figure 19 is the eleventh embodiment of the invention structural drawing.
Embodiment
Below in conjunction with drawings and Examples to the detailed description of the invention.
Fig. 1 is the exploded view of first embodiment of the invention.As shown in Figure 1, a ball valve comprises the rotating handles 11 of valve body 1 and butterfly structure.Valve body 1 is provided with a stop block 5, is used for matching with the catch 9a of handle 11 bottoms, thereby carries out spacing to the unlatching and the operating position of handle 11.The through hole 10 that valve rod 3 on the valve body passes on this handle body 8 is spirally connected with nut 12, thereby handle 11 is axially fixed on the valve body 1.In order to keep ball valve to be in the closure or openness position of regulation, avoid the generation of the closed or situation of unlatching of mistake, the present invention is provided with locking framework.This locking framework is included in locking screw of offering on the body 8 of handle 11 13 and the lock screw 15 that matches with this screw, the head 16 of this lock screw 15 is designed to the tapered end that cooperates with special tool or key, and (structure that this tapered end cooperates with special tool or key is similar in first to file 200410069419.9 to the applicant's, do not repeat them here its detailed structure), the bar section of this lock screw is provided with spiro rod section 18 and polished rod section 19, wherein spiro rod section 18 and screw 13 bolts, polished rod section 19 is then stretched out screw 13, as shown in Figure 2, this polished rod section 19 can be resisted against a side such as the right side of stop block 5.When handle 11 after the opened and closed positions on the valve body 1 is screwed into the position, with special tool lock screw 15 is screwed, because polished rod section 19 stops that by stop block 5 handle 11 can't rotate.Like this, valve body 1 and handle 11 just are locked in together.When needing rotatory handling 11, at first must open lock screw 15 with special tool earlier, right to use handle and valve body 1 release when true.For fear of from polished rod section reverse opening lock screw 15, polished rod section 19 mistakes of avoiding simultaneously giving prominence to are scraped thing or people, are provided with curved flanges 14 below handle body 8, and make this flange just in time block positioning block 5 and screw 15 from the side.
In order to reach more reliable locking effect, the invention provides second embodiment, in this embodiment, except first locking framework that is provided with embodiment 1, also be provided with second locking framework.As shown in Figure 3 and Figure 4, on the catch 9a of rotating handles 11, open a screw 25, simultaneously on valve body 1, be oppositely arranged a positioning block 22 with stop block 5, in this positioning block 22, offer a groove 21, when handle 11 after opening or closing the position and be screwed into the position on the valve body 1, make the just in time contraposition of first locking framework, and this groove 21 just in time connected with through hole 25, then second lock screw 17 is screwed in screws 25 and stretch in this groove 21, thereby rotating handles 11 and valve body 1 are locked at two places.Described groove 21 also can directly be opened on valve body 1 and omit positioning block 22.
As shown in Figure 5, be the third embodiment of the present invention, wherein the bottom surface of nut 12 is formed with a wide flange edge 20, when handle 11 after opening or closing the position and be screwed into the position on the valve body 1, reach through hole on the appropriate location of this flange edge 20, and coaxially on the body 8 of rotating handles 11, wear screw, then lock screw 15 is passed this two coaxial aperture, the screw of spiro rod section and handle body 8 is spirally connected, the polished rod section is passed this screw and is resisted against stop block 5 one sides, locks this screw 15 with special tool at last.At this moment, handle 11 just can't rotate, thereby avoids arbitrarily opening or throttle down.
Fig. 6 and shown in Figure 7 be fourth embodiment of the invention, similar with aforementioned first embodiment's locking framework, but different with first embodiment be in, this valve body 1 is a gate valve.As shown in Figure 7, handle 11 is axially fixed in the prismatic surface of valve rod 3 tops by nut 12.When valve is in closing of regulation or enable possition, one stop block 5 also is set on the cylindrical shell 4 of valve body 1, on a corresponding spoke of handle 11, have a screw 13, the spiro rod section 18 of one lock screw 15 is spirally connected with this screw 13, its polished rod section 19 is passed screw 13, be resisted against a side of stop block 5, rotating handles 11 just can not be at will by turn like this.In addition, also fix a curved flanges 14, and make this flange block stop block 5 and screw 15 from the side in order to avoid oppositely outward winding screw 15 and rotating valve, and polished rod section 19 mistakes that can avoid giving prominence to are scraped thing or people at the spoke place that has screw 13.
Be fifth embodiment of the invention shown in Fig. 8 and 9.Similar with the 4th embodiment, its valve body 1 also is a gate valve, and the setting of its locking framework and aforementioned second embodiment are similar, and it also is provided with two opposed locking frameworks.As shown in the figure, relative on the barrel 4 of valve body 1 with stop block 5, also be provided with a positioning block 22, have groove 21 in this positioning block 22; Relative with groove 21 positions on the spoke of handle another catch 23 is set also, and on this catch, opens a screw 25.After handle 11 and valve body 1 are screwed into the position, make lock screw 15 be rotatably connected in the screw 13 on the handle spoke and the polished rod section is stretched out this screw, the screw 25 that then second lock screw 17 is passed on the catch 23 inserts in the groove 21 of positioning block 22, forms the double-locking structure.The groove 21 here also can directly be opened on valve body 1 barrel 4 and omit positioning block 22.
Be sixth embodiment of the invention shown in Figure 10-13, wherein locking framework also is a double-locking, but lock screw 17 precessions in the screw of being opened on the stop block 5.As shown in the figure, in the present embodiment, handle 11 is fixed on the valve body 1 by round head bolt 12 '.On the body 8 of handle 11 and catch 9a, offer vertical threaded bore 13 and side screw 25 respectively, on the stop block 5 of valve body 1 and barrel 4 also respectively correspondence offer vertical threaded bore 5a and side screw 4a, when handle is threaded to fixed position shown in Figure 10, stop block 5 holds mutually with catch 9a, at this moment, screw 13 and 5a vertical centering, screw 25 and 4a horizontal centring, respectively two lock screw 17 and two pairs of screws are spirally connected with special tool then, shown in Figure 12 and 13, just like this handle 11 is positioned on the valve body 1.When wanting rotating valve, must open screw 17 with special tool earlier, just rotatable grip 11.
Figure 14 shows that seventh embodiment of the invention, its locking framework is similar to above-mentioned the 6th embodiment, but its valve handle 11 is a disc-shaped structure.Can unblank to decide screw 13 and 25 respectively in disc grip surface and the side that links to each other with valve body equally, with lock screw 17 handle and valve body be locked together then.
Be eighth embodiment of the invention shown in Figure 15 and 16.As shown in figure 15, the present invention still is provided with stop block 5 on the barrel 4 of valve body 1, offer through hole 5a ' in this stop block.Insert a spring 6b among the 5a ' of this hole, on handle 11, then have through hole 13a ', a screw 6f is respectively opened at a distance of suitable distance in both sides at this hole 13a ', when handle 11 when spinning is to fixed position shown in Figure 16 on valve body, the through hole 13a ' that makes handle 11 and through hole 5a ' be axial alignment just in time, then a lock 6 is put in through hole 13a ', place an annular gasket 6c at the body upper surface of handle 11 then, the shape of this pad is corresponding with the grip surface at screw 6f place, and have corresponding two hole 6e with screw 6f, at last will be respectively that two lock screw, 17 usefulness special tool spiral shells are solid in the screw 6f of handle 11, and the lock that will be stretched on through hole 13a ' upper-end surface is pressed in this through hole.Like this, if want rotating handles 11, at first will open lock screw 17, lock 6 pops up under the effect of spring 6b then, backs down pad 6c, takes out lock 6 then, makes 1 release of handle 11 and valve body, but ability freely openable valve.
Figure 17 is the ninth embodiment of the invention schematic representation, and among this embodiment, its vertically mechanism is identical with aforementioned the 6th embodiment, but the locking framework of its side omitted on handle 11 and valve body 1 and open screw, replaces with padlock as locking framework.Specifically be below handle 11, form one with the locking plate 29 of its bottom surface level, on the barrel 4 of valve body 1, fit and also form a locking plate 29 ' with this locking plate 29, coaxial perforate is respectively passed for padlock 28 on this two locking plate.Play the effect of Locked valve so equally.For handle is the valve of dish type, and the tenth embodiment also can adopt this locking framework as shown in figure 18.
Figure 19 is the eleventh embodiment of the invention structural drawing.It is that lift controil valve sheet 40 by valve rod 3 opens or closes valve, and the lifting of valve rod 3 is then by the rotation decision of handle 11 relative valve bodies 1.Two sections internal threads that direction is opposite are arranged on the barrel 4 ' of this valve body 1, and hypomere matches with the outside thread 32 of valve rod 3 bottoms, epimere and a fastening piece 80 bolts.The outer wall appropriate location of valve rod 3 is opened a circle annular groove 31, and opens two screws 81 on fastening piece 80.After being rotated in place on the hypomere internal thread of handle 11 at valve body 1, rotate fastening piece 80, annular groove 31 on the valve rod 3 radially is on the same horizontal plane with screw 81, then two lock screw 17 and screw 81 are spirally connected, boom end protrudes in the annular groove 31, so just valve rod 3 and fastening piece 80 is locked into one.When wanting rotating handles 11, the outside thread 32 that drives valve rod 3 rotates in the same way, because valve rod 3 and fastening piece 80 lockings, thereby fastening piece 80 also rotates under the drive of valve rod, but because valve rod is opposite with the hand of spiral of fastening piece, thereby can't rotatory handling 11, thereby reach the effect of Locked valve.Unload lock screw 17 as long as work as with special tool, but thereby the just switching of turn handle 11 control valves.
The foregoing description is only in order to explanation but do not limit the present invention, can also make various modifications or substitutes according to principle of the present invention.For example, the region between the heart and the diaphragm hole of the annular groove among Figure 19 31 in also can be by two relative with screw 81 replaces.Should be appreciated that these conversion do not break away from protection scope of the present invention.
Claims (13)
1. valve with locking framework, comprise valve body (1) and with the handle (11) and the valve rod (3) of its flexible connection, it is characterized in that being provided with at least one locking framework that both are fixed between described valve body (1) and the handle (11).
2. the valve with locking framework according to claim 1, it is characterized in that, described locking framework comprises the stop block (5) that the control handle (11) that is positioned on the valve body (1) opens and closes, and is positioned to stretch out one first lock screw (15) outside this screw with this stop block one side shaft to an adjacent screw (13) and with this screw (13) bolt and rod end on the handle (11).
3. the valve with locking framework according to claim 2 is characterized in that, the bar section of described first lock screw (15) is divided into thread section (18) and polished rod section (19), and described polished rod section (19) is stretched out in screw (13).
4. according to claim 2 or 3 described valves, it is characterized in that the body (8) of handle (11) is extended with the flange (14) that blocks in stop block (5) outer surface below outwards going up with locking framework.
5. the valve with locking framework according to claim 1, it is characterized in that, described locking framework comprises the stop block (5) that the control handle (11) that is positioned on the valve body (1) opens and closes, an inner bolt hole (5a) of axially offering in this stop block, with the handle (11) of this screw (5a) axial alignment on screw (13), and reach first lock screw (15) that (5a) all is spirally connected with this screw (13).
6. according to claim 2 or 5 described valves with locking framework, it is characterized in that, described locking framework also comprise valve body (1) go up with stop block (5) be oppositely arranged one radially hole slot, can stretch into second lock screw (17) in this hole slot with the corresponding screw (25) that on handle (11), radially is provided with of this hole slot and with this screw (25) merging that matches.
7. the valve with locking framework according to claim 6 is characterized in that, described hole slot is light groove (21).
8. the valve with locking framework according to claim 6 is characterized in that, described hole slot is screw (4a).
9. the valve with locking framework according to claim 7 is characterized in that, described smooth groove (21) is arranged in valve body (1) and goes up set a positioning block (22).
10. the valve with locking framework according to claim 5, it is characterized in that, the corresponding position that this locking framework further is included in described handle (11) and valve body (1) is provided with the upper and lower locking plate (29 with hole respectively, 29 ') it is locked with valve body (1) and handle (11) that, a padlock (28) passes the hole of locking plate.
11. the valve with locking framework according to claim 1, it is characterized in that, described locking framework comprises the stop block (5) of control handle (11) switching that is positioned on the valve body (1), axially have a unthreaded hole (5a ') in the stop block (5), insert a spring (6b) in this unthreaded hole, described handle (11) is gone up and the coaxial unthreaded hole (13a ') that is provided with of this unthreaded hole (5a '), both sides at this unthreaded hole (13a ') are opened a screw (6f) respectively, one cylinder (6) is inserted among unthreaded hole (13a ') and (5a '), one has the upper surface that arc pad (6c) with the hole (6e) of screw (6f) axial alignment is overlaid on this unthreaded hole (13a ') and screw (6f), and two first lock screw (17) are passed hole (6e) and screw (6f) bolt respectively.
12. the valve with locking framework according to claim 1, it is characterized in that, described handle (11) is connected with valve rod (3) top, the thread section (32) of valve rod (3) below is spirally connected with the following thread section of valve body (1) inwall, the last thread section of valve body (1) inwall and a fastening piece (80) bolt, on this valve body (1), following thread section direction is opposite, this fastening piece (80) top radially is oppositely arranged two screws that run through (81), the corresponding annular groove (31) that is provided with this screw (81) on valve rod (3) outer wall, two first lock screw (17) are spirally connected with screw (81) and stretch in the annular groove (31).
13. the valve with locking framework according to claim 12 is characterized in that, described annular groove (31) is by substituting with the corresponding screw in screw (81) position.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020040027423 | 2004-09-23 | ||
| KR20-2004-0027423U KR200370289Y1 (en) | 2004-09-23 | 2004-09-23 | Locking device of a valve |
| KR1020040091640 | 2004-11-10 | ||
| KR1020040104619 | 2004-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1807951A true CN1807951A (en) | 2006-07-26 |
Family
ID=36839987
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005101041654A Pending CN1807951A (en) | 2004-09-23 | 2005-09-16 | Valve with locking mechanism |
| CNU2005201053411U Expired - Fee Related CN2872019Y (en) | 2004-09-23 | 2005-09-16 | Valve with locking mechanism |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201053411U Expired - Fee Related CN2872019Y (en) | 2004-09-23 | 2005-09-16 | Valve with locking mechanism |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR200370289Y1 (en) |
| CN (2) | CN1807951A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805340A (en) * | 2016-05-24 | 2016-07-27 | 重庆市山城燃气设备有限公司 | Anti-burglary locking-controlled ball check valve |
| CN105805339A (en) * | 2016-05-24 | 2016-07-27 | 重庆市山城燃气设备有限公司 | Lock control ball valve |
| CN105864448A (en) * | 2016-05-24 | 2016-08-17 | 重庆市山城燃气设备有限公司 | Lock control non-return joint ball valve |
| CN111255908A (en) * | 2019-12-09 | 2020-06-09 | 宁波耀通管阀科技有限公司 | Ball valve convenient to auto-lock is fixed |
-
2004
- 2004-09-23 KR KR20-2004-0027423U patent/KR200370289Y1/en not_active IP Right Cessation
-
2005
- 2005-09-16 CN CNA2005101041654A patent/CN1807951A/en active Pending
- 2005-09-16 CN CNU2005201053411U patent/CN2872019Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805340A (en) * | 2016-05-24 | 2016-07-27 | 重庆市山城燃气设备有限公司 | Anti-burglary locking-controlled ball check valve |
| CN105805339A (en) * | 2016-05-24 | 2016-07-27 | 重庆市山城燃气设备有限公司 | Lock control ball valve |
| CN105864448A (en) * | 2016-05-24 | 2016-08-17 | 重庆市山城燃气设备有限公司 | Lock control non-return joint ball valve |
| CN105805339B (en) * | 2016-05-24 | 2018-11-20 | 重庆市山城燃气设备有限公司 | A kind of lock controlled ball valve |
| CN105805340B (en) * | 2016-05-24 | 2018-11-20 | 重庆市山城燃气设备有限公司 | A kind of Anti-theft-dismounting lock control ball check valve |
| CN111255908A (en) * | 2019-12-09 | 2020-06-09 | 宁波耀通管阀科技有限公司 | Ball valve convenient to auto-lock is fixed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN2872019Y (en) | 2007-02-21 |
| KR200370289Y1 (en) | 2004-12-13 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |