CN102748528A - Coded lock of valve - Google Patents
Coded lock of valve Download PDFInfo
- Publication number
- CN102748528A CN102748528A CN2012102828031A CN201210282803A CN102748528A CN 102748528 A CN102748528 A CN 102748528A CN 2012102828031 A CN2012102828031 A CN 2012102828031A CN 201210282803 A CN201210282803 A CN 201210282803A CN 102748528 A CN102748528 A CN 102748528A
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- Prior art keywords
- valve
- bonnet
- snap ring
- valve gap
- cipher lock
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- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The invention provides a coded lock of a valve and belongs to the technical field of valves. The coded lock of the valve solves the problems that the coded lock on the existing valve is complicated in structure and high in cost and the like. The coded lock of the valve comprises a valve cover for being fixedly connected onto a valve body of the valve and a valve cap capable of being connected onto the valve cover, wherein the valve cover and the valve cap are provided with scale markings, the valve cover is in a disk shape, a through hole for enabling a valve rod to penetrate through is arranged at the center of the valve cover, the valve cap is cylindrical, a clamp ring is fixedly and axially connected on the inner side of the valve cap, a cavity body for containing the outer end of the valve rod is arranged between the valve cover and the valve cap when the valve cover is sleeved on the valve cap, a protruding positioning pin is arranged on the lateral portion of the valve cover, and the positioning pin abuts against the clamp ring to enable the valve cover and the valve cap to be axially fixed. A protruding head which can be contacted with the positioning pin when rotates is arranged on the clamp ring, and unlocking mechanisms capable of enabling the positioning pin to break away from the positions of the clamp ring and the valve cap when the valve cap rotates to a set positioning in forward and backward mode are arranged on the clamp ring and the valve cap. The coded lock of the valve has the advantages of being simple in structure, easy and convenient to operate, low in manufacture cost and the like.
Description
Technical field
The invention belongs to valve technology field, relate to a kind of cipher lock, especially for the cipher lock on the valve.
Background technique
Valve is widely used in daily life and commercial production.In order to prevent misoperation and to prevent that unrelated person from operating valve, on valve, be provided with lock usually.Through lock that valve is sealed, can't open and close and change its aperture at the prerequisite lower valve of not opening lock.
Its publication number of Chinese patent CN2876321Y provides a kind of " land well head antitheft valve "; It comprises valve body and valve gap; The valve gap top is equipped with anti-theft puzzle lock, forms enclosed construction, cipher lock comprise lock and on locking closure, spring, locking plate and the lock pin installed in order.Characteristics such as above-mentioned patent has closed overall structure, and is seamless, and anti-destructive is strong, guards against theft, durable are mainly used on the land exploitation wellhead assembly of oil.
But the chief component of its anti-theft puzzle lock is some locking plates and spring, its complex structure, and cost is than higher.
Its publication number of Chinese patent CN2934821Y provides a kind of " cipher lock type valve "; It is formed by connecting to wheel, dedicated handle in cock wheel, valve leading screw, cipher lock safety foreign steamer, butt joint gland, the cipher lock safety valve body, valve gland, cipher lock overcoat, copper sheathing, cipher lock; Valve gland and valve body are by screwed connection, and cipher lock overcoat and valve gland are by screwed connection; Copper sheathing is positioned at the valve gland, and ball is arranged at the copper sheathing bottom, and pressure cap is arranged at top; It is outer by the key connection and by bolt that cipher lock butt joint wheel is positioned at copper sheathing; The valve leading screw is positioned at copper sheathing by the taenidium buckle, and the valve leading screw is connected with the interior flashboard of valve body; Outside cipher lock safety foreign steamer is enclosed within and takes turns in the cipher lock safety; Cipher lock safety foreign steamer is positioned at the cipher lock overcoat; The butt joint gland is positioned at the cipher lock overcoat by screwed connection; Dedicated handle is connected with the interior wheel of cipher lock safety, and dedicated handle is detachable.Though its anti-theft is than higher, anti-damage ability is strong.
But when it was in the lock state, because dedicated handle does not connect above that, outside internal structure was exposed to, the meeting influence was normal after impurity etc. got into opened and closed.Simultaneously, must use during release and its corresponding special handle, after dedicated handle loss or the damage, cipher lock can not be opened.And special tool also needs keeping in addition, and its applicability is poor.
Cipher lock in existing other application on the valve all exists similar problem.
Summary of the invention
The objective of the invention is the problems referred to above of existing to existing technology, the cipher lock of valve a kind of simple in structure, easy and simple to handle is provided.
The object of the invention can be realized through following technical proposal: a kind of cipher lock of valve; It is characterized in that; It comprises the valve gap that is used to be connected on the valve and can be connected the bonnet on the valve gap; Have scale on said valve gap and the bonnet and indicate, above-mentioned valve gap in the form of annular discs and therein the heart have the through hole that supplies valve rod to wear, said bonnet be tubular and within it side shaft to being fixedly connected with snap ring; Be enclosed within the cavity that is formed for holding the valve rod outer end on the bonnet between the two when valve gap; Locating stud and locating stud that said valve gap sidepiece has a protrusion are resisted against and make valve gap and bonnet axial restraint on the snap ring, have the plush copper that can contact with above-mentioned locating stud when its rotation on the said snap ring, have the release mechanism that above-mentioned locating stud is broken away from after turning to desired location by snap ring and bonnet place when bonnet is positive and negative on said snap ring and the bonnet.
When bonnet was fastened on the valve gap, the valve rod outer end was between valve gap and bonnet, and the valve rod outer end is covered, and therefore, can't operate valve.Have only through release mechanism to make bonnet break away from valve gap, could operate, finally make valve opening and closing or change its aperture valve rod.
Have certain frictional force between snap ring and the bonnet, snap ring can be along with together rotating in the bonnet rotation process.Bonnet is just going to plush copper on the snap ring with after locating stud contacts, and bonnet rotates with respect to snap ring.In like manner, bonnet is inverted to plush copper on the snap ring with after locating stud contacts, and bonnet also can rotate with respect to snap ring.Bonnet is indicated according to the scale of setting with valve gap align, snap ring also turns to unlocked position simultaneously, thus the release mechanism unlatching, and bonnet can be by deviating from the valve gap.
In the cipher lock of above-mentioned valve, described bonnet inboard has ringwise draw-in groove, and snap ring is positioned at above-mentioned draw-in groove place, and above-mentioned locating stud is resisted against the snap ring end.
Snap ring cooperates with the recessed ringwise draw-in groove in bonnet inboard, makes snap ring be axially fixed in the bonnet.Because locating stud is positioned at snap ring upper end, bonnet will break away from valve gap must make snap ring cross locating stud, and snap ring receives stopping of locating stud, so snap ring is axially fixed on the valve gap, and bonnet also is axially fixed on the valve gap.
In the cipher lock of above-mentioned valve, said plush copper is positioned at draw-in groove.The locating stud outer end is stretched in the draw-in groove place and is resisted against snap ring top, can contact with locating stud when snap ring rotates plush copper.
In the cipher lock of above-mentioned valve, said release mechanism comprises opening that is positioned on the snap ring and the opening slot that is positioned at the bonnet port, and said opening slot communicates with above-mentioned draw-in groove, and above-mentioned locating stud size is less than opening size and opening slot size.
When making opening, opening slot and locating stud be in same position after the bonnet clockwise and anticlockwise, because the locating stud size is smaller, therefore, locating stud can that is to say that bonnet can break away from valve gap by breaking away from snap ring and the bonnet.
In the cipher lock of above-mentioned valve, the other end that said bonnet and valve gap fasten seals and has the rotation section in this end outside.
Bonnet one end sealing makes the cavity between bonnet and the valve gap form the cavity of sealing, and not opening bonnet just can not rotation valve rod, thereby can't operate valve.
In the cipher lock of above-mentioned valve, described rotation section is the boss that is prism-shaped.
Such structure has increased frictional force, and the operator can easily rotate bonnet.
In the cipher lock of above-mentioned valve, have some attachment holes that run through on the said valve gap.
Be through at the connection hole through fastening pieces such as screws, just can make valve gap be connected in the valve body outside of valve.
In the cipher lock of above-mentioned valve, described attachment hole circumferentially is uniformly distributed with along valve gap.Like this be arranged so that valve gap and valve body are through firm being fixed together of a plurality of fastening pieces.
In the cipher lock of above-mentioned valve, said valve gap end has the connecting base of protrusion, and above-mentioned locating stud connects firmly on connecting base, above-mentioned snap ring be enclosed within on the connecting base and snap ring between locating stud and valve gap.
Connecting base and bonnet inner bore are complementary, and can not rock between the two after bonnet is enclosed within on the valve gap.Simultaneously, the position that the valve gap bottom size is bigger stops bonnet.
In the cipher lock of above-mentioned valve, said valve gap end has Digital ID, and the said bonnet outside has Digital ID.The Digital ID of bonnet is alignd with the Digital ID of valve gap to get final product.
Compared with prior art, the cipher lock of this valve just can be realized release owing to only need to rotate bonnet, and is therefore, easy and simple to handle.Because it only is made up of bonnet, valve gap, snap ring etc., simple in structure, cost is also lower.
Simultaneously, bonnet and valve gap link when cipher lock is in the lock state, just can bonnet be dismantled during released state since as far as time of valve operation with respect to being locking time very short.Can find out, because it does not need special tool, the situation that does not exist part to lose, therefore, its applicability is than higher.
In addition, the position of different its upper sheds of snap ring is different with respect to the position of plush copper, changes the password change that different snap rings just can be realized cipher lock.Same cipher lock change password is just changed snap ring, and for conventional combination lock, the mode of its change password is also fairly simple.
Description of drawings
Fig. 1 is the sectional structure schematic representation of valve with cipher lock of this valve.
Fig. 2 is the perspective view of the cipher lock of this valve.
Fig. 3 is the sectional structure schematic representation of the cipher lock of this valve.
Fig. 4 is the linkage structure schematic representation of snap ring and valve gap in the cipher lock of this valve.
Fig. 5 is the perspective view of bonnet in the cipher lock of this valve.
Fig. 6 be in the cipher lock of this valve bonnet look up structural representation.
Among the figure, 1, valve gap; 1a, connecting base; 1b, through hole; 1c, attachment hole; 2, bonnet; 2a, opening slot; 2b, rotation section; 2c, draw-in groove; 3, locating stud; 4, snap ring; 4a, plush copper; 4b, opening; 5, valve body 6, valve rod 7, fastening piece.
Embodiment
Like Fig. 1 and Fig. 2 and shown in Figure 3, the cipher lock of this valve is arranged on the outside of valve 5, and it covers valve rod 6 outer ends of valve.
The cipher lock of this valve comprises valve gap 1 and bonnet 2, and valve gap 1 end has Digital ID, and bonnet 2 outsides have Digital ID.Have four attachment hole 1c that run through on the valve gap 1, four attachment hole 1c circumferentially are uniformly distributed with along valve gap 1.Fastening piece 7 is through at the connection hole of valve gap 1, and fastening piece 7 is connected on the valve body 5 then, thereby valve gap 1 is connected on the valve body 5 of valve.Fastening piece 7 used herein is screws.
In the form of annular discs and the heart through hole 1b therein of valve gap 1, this through hole 1b can be passed in valve rod 6 outer ends, and valve gap 1 end has the connecting base 1a of protrusion, and connecting base 1a sidepiece is fixedly connected with locating stud 3, and in the present embodiment, through hole 1b runs through connection seat 1a.
Like Fig. 4 and Fig. 5 and shown in Figure 6, bonnet 2 inboards have ringwise draw-in groove 2c, snap ring 4 in the form of a ring, snap ring 4 ends have the plush copper 4a of protrusion.Snap ring 4 and the plush copper 4a on it are positioned at draw-in groove 2c; And snap ring 4 is complementary with the size summation of plush copper 4a and the width of draw-in groove 2c; That is to say; The snap ring 4 that is positioned at draw-in groove 2c can rotate with respect to bonnet 2, but can not move axially with respect to bonnet 2, thereby makes snap ring 4 be axially fixed in the bonnet 2.Have frictional force between snap ring 4 and the bonnet 2, when the plush copper 4a on the snap ring 4 did not receive stopping of locating stud 3, snap ring 4 can together rotate along with bonnet 2.Certainly, after pin 3 stopped in case plush copper 4a is positioned, snap ring 4 can not be rotated further, but bonnet 2 still can be rotated further.
Having on snap ring 4 and the bonnet 2 when bonnet 2 is positive and negative can make above-mentioned locating stud 3 break away from release mechanism by snap ring 4 with bonnet 2 places after turning to desired location.Release mechanism comprises opening 4b that is positioned on the snap ring 4 and the opening slot 2a that is positioned at bonnet 2 ports, and opening slot 2a communicates with draw-in groove 2c, and locating stud 3 sizes are less than opening 4b size, and locating stud 3 sizes are also less than opening slot 2a size simultaneously.
After the connecting base 1a that bonnet 2 is fastened on valve gap 1 went up, valve rod 6 outer ends of valve were owing to be housed in the cavity between valve gap 1 and the bonnet 2.Therefore, can't operate valve.
In the time of need operating valve, at first make the release mechanism release.Rotate bonnet 2, snap ring 4 can be along with together rotating in bonnet 2 rotation processes.Bonnet 2 clockwise rotate on it scale marker and the scale marker on the valve gap 1 according to set numeral over against after, the another mistake hour hands rotate bonnet 2 make on it scale marker and the scale marker on the valve gap 1 according to set digital over against.Particularly; The operator is with the hand rotated 2a of portion, and bonnet clockwise rotates in the process owing to having certain frictional force between snap ring 4 and the bonnet 2, therefore; Bonnet 2 drives snap ring 4 and together rotates; When the plush copper 4a on snap ring 4 contacts with locating stud 3, at this moment, opening 4b on the snap ring 4 and the opening slot 2a on the bonnet 2 over against.Rotate counterclockwise bonnet 2, snap ring 4 is along with bonnet 2 together moves and since before on the snap ring 4 opening 4b and the opening slot 2a on the bonnet 2 over against, rotate counterclockwise on the back snap ring 4 opening 4b, the opening slot 2a on the bonnet 2 and locating stud 3 threes over against.Be in the unlocked position this moment, and bonnet 2 can easily be by deviating from the valve gap 1.
The opening 4a of snap ring 4 is with after the opening slot 2a of bonnet 2 aligns; Again opening slot 2a is alignd with locating stud 3; Bonnet 2 is enclosed within on the valve gap 1 connecting base 1a again; After arbitrarily rotating bonnet 2 several angles, owing to stagger in bayonet socket 4a, opening slot 2a and locating stud 3 threes' position, bonnet 2 keeps lock state again with valve gap 1.
Changing different snap rings 4 in the time of need changing unlocking pin gets final product.That is to say, different snap ring 4 on it plush copper 4a be different with respect to the position between the opening 4b, it is also different accordingly to have changed different snap rings 4 its unlocking pins.
Claims (10)
1. the cipher lock of a valve; It is characterized in that; It comprises and is used to be connected in the valve gap (1) on the valve (5) and can be connected the bonnet (2) on the valve gap (1); Having scale on said valve gap (1) and the bonnet (2) indicates; Above-mentioned valve gap (1) in the form of annular discs and therein the heart have the through hole (1b) that confession valve rod (6) wears; Said bonnet (2) be tubular and within it side shaft to being fixedly connected with snap ring (4); Be enclosed within the cavity that is formed for holding valve rod (6) outer end on the bonnet (2) between the two when valve gap (1); Locating stud (3) and locating stud (3) that said valve gap (1) sidepiece has a protrusion are resisted against and make valve gap (1) and bonnet (2) axial restraint on the snap ring (4), have the plush copper (4a) that can contact with above-mentioned locating stud (3) when its rotation on the said snap ring (4), have the release mechanism that can make above-mentioned locating stud (3) located to break away from by snap ring (4) and bonnet (2) after turning to desired location when bonnet (2) is positive and negative on said snap ring (4) and the bonnet (2).
2. the cipher lock of valve according to claim 1 is characterized in that, described bonnet (2) inboard has ringwise draw-in groove (2c), and snap ring (4) is positioned at above-mentioned draw-in groove (2c) to be located, and above-mentioned locating stud (3) is resisted against snap ring (4) end.
3. the cipher lock of valve according to claim 2 is characterized in that, said plush copper (4a) is positioned at draw-in groove (2c).
4. according to the cipher lock of claim 2 or 3 described valves; It is characterized in that; Said release mechanism comprises the opening (4b) that is positioned on the snap ring (4) and is positioned at opening (4b) groove (2a) of bonnet (2) port; Said opening (4b) groove (2a) communicates with above-mentioned draw-in groove (2c), and above-mentioned locating stud (3) size is less than opening (4b) size and opening (4b) groove (2a) size.
5. according to the cipher lock of claim 1 or 2 or 3 described valves, it is characterized in that said bonnet (2) has rotation section (2b) with the other end sealing of valve gap (1) fastening and in this end outside.
6. the cipher lock of valve according to claim 5 is characterized in that, described rotation section (2b) is for being the boss of prism-shaped.
7. according to the cipher lock of claim 1 or 2 or 3 described valves, it is characterized in that having some attachment holes that run through (1c) on the said valve gap (1).
8. the cipher lock of valve according to claim 7 is characterized in that, described attachment hole (1c) circumferentially is uniformly distributed with along valve gap (1).
9. according to the cipher lock of claim 1 or 2 or 3 described valves; It is characterized in that; Said valve gap (1) end has the connecting base (1a) of protrusion; Above-mentioned locating stud (3) connects firmly on connecting base (1a), and above-mentioned snap ring (4) is enclosed within on the connecting base (1a) and snap ring (4) is positioned between locating stud (3) and the valve gap (1).
10. according to the cipher lock of claim 1 or 2 or 3 described valves, it is characterized in that said valve gap (1) end has Digital ID, said bonnet (2) outside has Digital ID.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210282803.1A CN102748528B (en) | 2012-08-10 | 2012-08-10 | Coded lock of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210282803.1A CN102748528B (en) | 2012-08-10 | 2012-08-10 | Coded lock of valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102748528A true CN102748528A (en) | 2012-10-24 |
| CN102748528B CN102748528B (en) | 2014-06-11 |
Family
ID=47028931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210282803.1A Expired - Fee Related CN102748528B (en) | 2012-08-10 | 2012-08-10 | Coded lock of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102748528B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661684A (en) * | 2020-07-30 | 2020-09-15 | 赣州德业电子科技有限公司 | Adjustable solar power supply board protective cover for discharging platform safety monitoring system |
| CN112780793A (en) * | 2021-01-27 | 2021-05-11 | 浙江裕昌流体控制科技有限公司 | Cipher valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4266415A (en) * | 1978-08-08 | 1981-05-12 | Clarke Walter W H | Pneumatic door locks |
| CN2508078Y (en) * | 2001-07-17 | 2002-08-28 | 张宝东 | Enclosed puzzle look theftproof valve |
| CN2916293Y (en) * | 2006-03-20 | 2007-06-27 | 杨庆华 | Valve with coded lock |
| CN202790856U (en) * | 2012-08-10 | 2013-03-13 | 卓旦春 | Coded lock of valve |
-
2012
- 2012-08-10 CN CN201210282803.1A patent/CN102748528B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4266415A (en) * | 1978-08-08 | 1981-05-12 | Clarke Walter W H | Pneumatic door locks |
| CN2508078Y (en) * | 2001-07-17 | 2002-08-28 | 张宝东 | Enclosed puzzle look theftproof valve |
| CN2916293Y (en) * | 2006-03-20 | 2007-06-27 | 杨庆华 | Valve with coded lock |
| CN202790856U (en) * | 2012-08-10 | 2013-03-13 | 卓旦春 | Coded lock of valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661684A (en) * | 2020-07-30 | 2020-09-15 | 赣州德业电子科技有限公司 | Adjustable solar power supply board protective cover for discharging platform safety monitoring system |
| CN111661684B (en) * | 2020-07-30 | 2021-09-07 | 赣州德业电子科技有限公司 | Adjustable solar power supply board protective cover for discharging platform safety monitoring system |
| CN112780793A (en) * | 2021-01-27 | 2021-05-11 | 浙江裕昌流体控制科技有限公司 | Cipher valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102748528B (en) | 2014-06-11 |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20180810 |