CN201462029U

CN201462029U - Encrypted emergency shut-off valve

Info

Publication number: CN201462029U
Application number: CN2009201203436U
Authority: CN
Inventors: 黄慧; 钱金明; 赵明祥; 王建表
Original assignee: ZHEJIANG DUN'AN VALVE CO Ltd
Current assignee: ZHEJIANG DUNAN INTELLIGENT CONTROL TECHNOLOGY CO., LTD.
Priority date: 2009-05-14
Filing date: 2009-05-14
Publication date: 2010-05-12
Anticipated expiration: 2019-05-14

Abstract

The utility model discloses an encrypted emergency shut-off valve, which comprises a valve body, a valve core arranged in the valve body, and a valve cover arranged on the top of the valve body, wherein the top of the valve cover is provided with a turning wheel; a valve rod for connecting the valve core and the turning wheel is inserted into the valve cover; the turning wheel is provided with a hand wheel loosely inserted into the turning wheel; at least one locking mechanism for locking the rotation of the turning wheel is arranged between the turning wheel and the valve cover; and an unlocking device for unlocking the locking mechanism is arranged in the hand wheel. The encrypted emergency shut-off valve has a simple and compact overall structure, can be shut off randomly, can only be opened by a special key namely the valve cover, and can be applied to a water meter front valve and a gas pipeline meter front valve in a public place to prevent others to open the valve without authorization to steel water, oil, gas and the like; and the design of a lug structure of the hand wheel can ensure that the valve can be shut off quickly and conveniently without using any other tools under the condition without the key in an emergency to prevent further deteriorations of an accident, so the encrypted emergency shut-off valve is safer and more reliable.

Description

A kind of encryption emergency shutdown valve

Technical field

The utility model relates to valve technology field, especially a kind of encryption emergency shutdown valve.

Background technique

At present, flowing mediums such as extensive use valve controlling liquid or gas flows in town water supply, gas distribution system, gas network and industrial pipeline, particularly the use of ball valve is more general in the domestic gas system, but common ball valve people can arbitrarily open, close, and can not prevent the unexpected opening and closing of valve; And the ball valve of locking mechanism with lock needs special-purpose key just can open, close, in case the situation of emergency situations, particularly gas leakage that takes place do not have special-purpose key can't throttle down, produce security incident probably.A kind of magnetic Lock controlled valve is disclosed in Chinese patent CN01274270.8, comprise valve body, spool and be connected valve rod on the spool, the sheathed lock housing of the valve rod the other end, an energy is installed by the locking plate of valve body retaining institute's blocking between lock housing and valve body, limit the rotation of spool with this, need open or close by the key of special use, prevent the illegal purpose of opening of pipeline though reach, in case can emergency case such as leakage occur by pipeline, need timely throttle down, before the professional workforce of relative section is less than, this kind valve again can't manual-lock, and its possibility of result is the loss of fortune and personnel's injury, though different with the former in its structure of the disclosed magnetic lock valve of another piece Chinese patent CN200610071229.X, but still existence and the identical shortcoming of preceding piece of writing patent, promptly under the situation of key useless, in time the manual-lock valve brings unsafe factor to pipeline and user of service.

Summary of the invention

Problem to be solved in the utility model is exactly at the shortcoming on the existing magnetic valve switching function, a kind of anti-theft feature that has is provided, and the encryption emergency shutdown valve that needs special-purpose key just can open, prevent other people without authorization Open valve steal and let out water, oil, gas; Simultaneously again can be when some emergency situations take place, can be not by any instrument, just light throttle down is safer, reliable.

In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: a kind of encryption emergency shutdown valve, comprise valve body, be located at the spool in the valve body and be located at the valve gap at valve body top, the valve gap top is provided with runner, be equipped with the valve rod that connection spool and runner are used in the valve gap, it is characterized in that: runner is provided with the handwheel with the active grafting of runner, be provided with at least one between runner and the valve gap and be used for the locking framework that the blocking runner rotates, be provided with the tripper that is used for unlocked mechanism in the described handwheel.

As preferably, described locking framework comprises the lockhole one that is located on the runner inner top wall and is located at the corresponding lockhole two of valve gap end face and lockhole one, lockhole one wears bar magnet one with the junction point of lockhole two, is provided with spring between the bottom surface of the end face of bar magnet one and lockhole one; Under the valve closing state, the two ends of bar magnet one lays respectively in lockhole one and the lockhole two, and under valve opening state, valve gap end face apical grafting is on the bottom surface of bar magnet one.

As improved, be provided with secondary locking mechanism at runner and valve cover chamber, comprise the locked groove that is located on the runner madial wall, the valve gap side is provided with the lockhole corresponding with locked groove three, lockhole three wears bar magnet two with the junction point of locked groove, is provided with spring between the bottom surface of the left side of bar magnet two and lockhole three; Under the valve closing state, the two ends of bar magnet two lays respectively in lockhole three and the locked groove, and under valve opening state, runner madial wall roof pressure is on the right side of bar magnet two.

As preferably, described locking framework comprises the locked groove that is located on the runner madial wall, and the valve gap side is provided with the lockhole corresponding with locked groove three, and lockhole three wears bar magnet two with the junction point of locked groove, is provided with spring between the bottom surface of the left side of bar magnet two and lockhole three; Under the valve closing state, the two ends of bar magnet two lays respectively in lockhole three and the locked groove, and under valve opening state, runner madial wall roof pressure is on the right side of bar magnet two.

Further, be positioned at locked groove on the runner and lockhole one, be positioned at lockhole two and lockhole three on the valve gap along the 90 ° of settings at interval of valve gap outer circumference direction along the 90 ° of settings at interval of runner madial wall circumferencial direction.

Further, described tripper comprise be located at handwheel top and bar magnet one corresponding and with the magnetic patch one that bar magnet one heteropole is oppositely arranged, on the handwheel madial wall, be provided with magnetic patch two corresponding with bar magnet two and that be oppositely arranged with bar magnet two homopolarities.

Further, described handwheel comprises wheel body and the wheel cap that fastens with wheel body, and wheel body and the active grafting of described runner make handwheel in use, can be corresponding fast between bar magnet and magnetic patch, make things convenient for Open valve, and the while has also made things convenient for the installation of handwheel.

As improved, described runner outer side wall be provided with several be used for the manual-lock valve and with the lug of the active grafting usefulness of handwheel, convenient under emergency case, can make things convenient for throttle down timely.

Further, described runner top is provided with a counterbore, in the counterbore bolt is set and valve rod spins, and bolt head is provided with an end socket and is used for the shutoff bolt, prevents that bolt from being extracted by malice, and the protection valve is without prejudice.

After adopting technique scheme, the utlity model has following advantage: the utility model overall structure is simple, compact, by two locking frameworks valve can be closed at random, but opening and must using special-purpose key is handwheel, can be used for valve before valve before the water meter of public arena, the gas pipe line table, prevent other people without authorization Open valve steal water, oil, gas etc.; The ledge arrangement design of runner makes emergency case occurring and not having under the situation of key, not by any instrument, just can be easily and fast with valve closing, and effectively prevention accident further worsens, and is safer, reliable.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is the utility model valve body perspective view;

Fig. 2 is the perspective view of the utility model runner;

Fig. 3 is the perspective view of the utility model handwheel;

Fig. 4 is the sectional structure schematic representation of the utility model when valve closing;

Fig. 5 is the sectional structure schematic representation of the utility model locking framework when valve closing;

Fig. 6 is the sectional structure schematic representation of the utility model when valve opening.

Embodiment

As Fig. 1, shown in Figure 4; the utility model comprises valve body 1, be located at the spool 12 in the valve body 1 and be located at the valve gap 11 at valve body 1 top; valve gap 11 tops are provided with runner 3; be equipped with the valve rod 121 that connects spool 12 and runner 3 usefulness in the valve gap 11; described runner 3 tops are provided with a counterbore, bolt 4 is set in the counterbore spins with valve rod 121, and bolt 4 heads are provided with an end socket 41; prevent that bolt 4 from being extracted by malice, the protection valve is without prejudice.As shown in Figure 2, be arranged with on described runner 3 outer side walls two be used for the manual-lock valve and with handwheel 2 active grafting usefulness lug 31, convenient under emergency case, can make things convenient for throttle down timely; As shown in Figure 3, described handwheel 2 comprises wheel cap 21 and the wheel body 22 that fastens with wheel cap 21, and wheel body 22 and described runner 3 active grafting make things convenient for the installation of handwheel 2.Be provided with at least one between runner 3 inside and the valve gap 11 and be used for the locking framework that blocking runner 3 rotates, be provided with the tripper that is used for unlocked mechanism in the described handwheel 2.

Be a kind of preferred structure of the present utility model below: between runner 3 inside and valve gap 11, vertically be provided with a locking framework, laterally being provided with a secondary locking mechanism. described locking framework comprises and is located at the lockhole 1 on runner 3 inner top wall and is located at the corresponding lockhole 2 111 of valve gap 11 end faces and lockhole 1, lockhole 1 wears bar magnet 1 with the junction point of lockhole 2 111, is provided with spring 7 between the bottom surface of the end face of bar magnet 1 and lockhole 1; Under the valve closing state, the two ends of bar magnet 1 lays respectively in lockhole 1 and the lockhole 2 111, under valve opening state, valve gap 11 end face apical graftings are on the bottom surface of bar magnet 1. and described secondary locking mechanism comprises the locked groove 33 that is located on runner 3 madial walls, valve gap 11 sides are provided with the lockhole three 110 corresponding with locked groove 33, lockhole 3 110 wears bar magnet 26 with the junction point of locked groove 33, is provided with spring 7 between the bottom surface of the left side of bar magnet 26 and lockhole 3 110; Under the valve closing state, the two ends of bar magnet 26 lays respectively in lockhole 3 110 and the locked groove 33, under valve opening state, runner 3 madial wall roof pressures are on the right side of bar magnet 26. meanwhile, being arranged on trippers that are used for unlocked mechanism in the handwheel 2 also is provided with accordingly and comprises and be located at handwheel 2 tops and bar magnet 1 magnetic patch 1 corresponding and that be oppositely arranged with bar magnet one 5 heteropoles, on handwheel 2 madial walls, be provided with magnetic patch 2 24 corresponding with bar magnet 26 and that be oppositely arranged with bar magnet 26 homopolarities, locked groove 33 and lockhole 1 are along 90 ° of settings at interval on the runner 3 madial wall circumferencial directions, corresponding lockhole 2 111 and lockhole 3 110 are along the 90 ° of settings at interval of valve gap 11 outer circumference directions, and magnetic patch 1 and magnetic patch 2 24 are along the 90 ° of settings at interval of handwheel wheel body 22 madial wall circumferencial directions.

Use principle of the present utility model: as Fig. 4, shown in Figure 5, when valve closing, bar magnet one 5 two ends are respectively in lockhole 1 and lockhole 2 111, in lockhole 3 110 and locked groove 33, the runner 3 of this moment can't rotate owing to be subjected to the blocking of bar magnet 1 and bar magnet 26 two ends of bar magnet 26 respectively.As shown in Figure 6, when opening valve, handwheel 2 is put runner 3, the wheel cap 21 of handwheel 2 is provided with magnetic patch 1 corresponding with bar magnet 1 in the locking framework and that be oppositely arranged with bar magnet one 5 heteropoles, on the madial wall of handwheel wheel body 22, be provided with magnetic patch 2 24 corresponding with bar magnet 26 in the secondary locking mechanism and that be oppositely arranged with bar magnet 26 homopolarities, magnetic patch one 23 attraction bar magnets 1 overcome spring 7 pressure and move upward, and magnetic patch 2 24 repulsion bar magnets 26 overcome spring 7 pressure to left movement, two springs 7 all are compressed, treat that bar magnet 1 enters in the lockhole 1 on the runner 3 fully, bar magnet 26 enters the lockhole 3 110 o'clock on the valve gap 11 fully, the end face apical grafting of valve gap 11 is on the bottom surface of bar magnet 1, and the interior sidewall surface roof pressure of runner 3 is in the right side of bar magnet, the runner 3 of this moment has not had the blocking of bar magnet, can rotate freely, and rotates handwheel 2, handwheel 2 drive runners 3 drive valve rod 121 simultaneously spool 12 are gone to open position, take away runner 3.This moment is if want throttle down, need not use handwheel 2 again, only need forward runner 3 to and enter in corresponding lockhole 2 111 and the locked groove 33 until bar magnet 1 and bar magnet 26, valve also is in closed condition, realize that thus valve can arbitrarily close, but do not have the function that special-purpose key can't be realized Open valve.

In addition; the structure of the tripper that the structure of locking framework, secondary locking mechanism and the handwheel that is used with it are interior and the rotation angle that quantitative variation only can influence spool; but can not impact fundamental function of the present utility model; and the above embodiments only are preferred embodiment of the present utility model; the utility model also has other multiple embodiments; variation or modification that any those skilled in the art does the utility model all are encompassed among the scope of patent protection of the present utility model.

Claims

1. encrypt emergency shutdown valve for one kind, comprise valve body (1), be located at the spool in the valve body (1) and be located at the valve gap (11) at valve body (1) top, valve gap (11) top is provided with runner (3), be equipped with the valve rod (121) that connects spool (12) and runner (3) usefulness in the valve gap (11), it is characterized in that: runner (3) is provided with the handwheel (2) with the active grafting of runner (3), be provided with at least one between runner (3) and the valve gap (11) and be used for the locking framework that the blocking runner rotates, described handwheel is provided with the tripper that is used for unlocked mechanism in (2).

2. a kind of encryption emergency shutdown valve according to claim 1, it is characterized in that: described locking framework comprises and is located at the lockhole one (32) on runner (3) inner top wall and is located at the corresponding lockhole two (111) of valve gap (11) end face and lockhole one (32), lockhole one (32) wears bar magnet one (5) with the junction point of lockhole two (111), is provided with spring (7) between the bottom surface of the end face of bar magnet one (5) and lockhole one (32); Under the valve closing state, the two ends of bar magnet one (5) lays respectively in lockhole one (32) and the lockhole two (111), and under valve opening state, valve gap (11) end face apical grafting is on the bottom surface of bar magnet one (5).

3. a kind of encryption emergency shutdown valve according to claim 2, it is characterized in that: be provided with secondary locking mechanism at runner (3) and valve gap (11), comprise the locked groove (33) that is located on runner (3) madial wall, valve gap (11) side is provided with the lockhole corresponding with locked groove (33) three (110), lockhole three (110) wears bar magnet two (6) with the junction point of locked groove (33), is provided with spring (7) between the bottom surface of the left side of bar magnet two (6) and lockhole three (110); Under the valve closing state, the two ends of bar magnet two (6) lays respectively in lockhole three (110) and the locked groove (33), and under valve opening state, runner (3) madial wall roof pressure is on the right side of bar magnet two (6).

4. a kind of encryption emergency shutdown valve according to claim 1, it is characterized in that: described locking framework comprises the locked groove (33) that is located on runner (3) madial wall, valve gap (11) side is provided with the lockhole corresponding with locked groove (33) three (110), lockhole three (110) wears bar magnet two (6) with the junction point of locked groove (33), is provided with spring (7) between the bottom surface of the left side of bar magnet two (6) and lockhole three (110); Under the valve closing state, the two ends of bar magnet two (6) lays respectively in lockhole three (110) and the locked groove (33), and under valve opening state, runner (3) madial wall roof pressure is on the right side of bar magnet two (6).

5. a kind of encryption emergency shutdown valve according to claim 3, it is characterized in that: be positioned at locked groove (33) and lockhole one (32) on the runner (3) along the staggered 90 ° of settings of runner (3) madial wall circumferencial direction, be positioned at lockhole two (111) and lockhole three (110) on the valve gap (11) along the staggered 90 ° of settings of valve gap (11) outer circumference direction.

6. a kind of encryption emergency shutdown valve according to claim 3, it is characterized in that: described tripper comprise be located at handwheel (2) top and bar magnet one (5) corresponding and with the magnetic patch one (23) that bar magnet one (5) heteropole is oppositely arranged, on handwheel (2) madial wall, be provided with magnetic patch two (24) corresponding with bar magnet two (6) and that be oppositely arranged with bar magnet two (6) homopolarities.

7. a kind of encryption emergency shutdown valve according to claim 1 is characterized in that: described handwheel (2) comprises wheel cap (21) and the wheel body (22) that fastens with wheel cap (21), wheel body (22) and the active grafting of described runner (3).

8. according to claim 1 or 7 described a kind of encryption emergency shutdown valves, it is characterized in that: described runner (3) outer side wall be provided with several be used for the manual-lock valve and with the lug (31) of the active grafting usefulness of handwheel (2).

9. a kind of encryption emergency shutdown valve according to claim 1 is characterized in that: described runner (3) top is provided with a counterbore, bolt (4) is set in the counterbore spins with valve rod (121), and bolt (4) head is provided for the end socket (41) of shutoff bolt.