CN2586858Y

CN2586858Y - Magnetic control valve

Info

Publication number: CN2586858Y
Application number: CN 02261580
Authority: CN
Inventors: 张陈亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-12
Filing date: 2002-11-12
Publication date: 2003-11-19
Anticipated expiration: 2012-11-12

Abstract

The utility model provides a magnetic control valve, which relates to the technical field of valves. The magnetic control valve solves the problems that the existing valve having a locking device has ineffective operation in use, short service life, etc. The magnetic control valve comprises a valve body, a valve core, a valve stem and an independent switching handle, wherein, the valve body at the extended part of the valve stem is fixedly connected with a cylindrical locking column, the valve stem is penetrated through the locking column, and the end part of the valve stem is extended out of the locking column. The cross section of the extended end of the valve stem is not in a circular shape, a sealed ring is arranged between the valve stem and the locking column, and a cup-shaped lock body is inversely buckled out of the locking column. The center of the top part of the lock body is provided with a locking hole matched with the shape of the cross section of the extended end of the valve stem, and a magnetic locking device is arranged between the locking column and the lock body. A lock shell is covered out of the lock body, and a permanent magnet used for controlling the magnetic locking device is arranged in the switching handle. Since the expansion and contraction of the magnetic column at the side part of the lock body is used for controlling the valve, the utility model has the advantages of reliable performance and flexible operation in use.

Description

The magnetic control valve door

Technical field

The utility model relates to valve technology field, particularly a kind of valve with locking device.

Background technique

Valve with locking device now has been widely used on tap water pipe line, heating pipeline or the gaspipe line.In these valves, major part is to adopt bullet lock to come the handle of control valve or valve rod, so the used key of each valve can not be general, is unfavorable for centralized management; Simultaneously, manager works valve opening and closing and to carry key all very inconvenient.

At present, mode is to utilize magnetic principles preferably, adopts special tool to open.For this reason, the applicant once proposed the utility model patent of a kind of " magnetic Lock controlled valve " (patent No. was: 012742708).This magnetic Lock controlled valve is in opening handle permanent magnet to be set, and locking plate and spring that a control valve rod rotates are housed in lock housing, and behind permanent magnet adhesive locking plate, rotary opening closing handle again carries out opening and closing operations to valve.The advantage of this magnetic Lock controlled valve be simple in structure, operation is also very convenient, but also exists certain deficiency.Mainly show valve in use its locking plate block easily, influence the normal use of valve.Simultaneously and since locking plate with magnetic material particularly iron material make, can get rusty in use for some time, shortened the working life of valve.

Summary of the invention

The purpose of this utility model is exactly in order to overcome the problems referred to above, and a kind of structure improved magnetic control valve door is provided, and makes it have characteristics such as flexible operation, long service life.

For achieving the above object, the utility model has adopted following technical proposal: this magnetic control valve door comprises valve body, spool, valve rod and one independently open and close handle, spool is positioned at valve body, the inner of valve rod connects with spool, valve body is stretched out in the outer end, valve rod stretches out the columned lock that is being connected on the valve body at place, valve rod passes lock, lock is stretched out in its end, the sectional shape of valve rod external part is non-circular, and be provided with seal ring between valve rod and the lock, the outer cup-shaped lock body of left-hand thread of lock, the top center of lock body has a lockhole that matches with the external part sectional shape of valve rod, be provided with magnetic lock device between lock and the lock body, this device can make the external part of valve rod be in the position of not inserting above-mentioned lockhole, and lock body is covered with a lock housing, lock housing and lock body are fixed together, and are provided with the permanent magnet that can control above-mentioned magnetic lock device in the above-mentioned switching handle.

In above-mentioned magnetic control valve door, described magnetic lock device is that the outer side surface at lock has an annular groove, is drilled with several circular holes on the sidewall of lock body, places spring and magnetic post in the circular hole, and under the effect of spring, the magnetic post can insert in the annular groove of lock; During department, an endoporus that is complementary with the lock housing profile is arranged on the above-mentioned switching handle, and on the sidewall of endoporus, be provided with and lock body upper magnetic post equal number and position permanent magnet one to one.

In above-mentioned magnetic control valve door, the normally positive polygon prism of the shape of lock housing, the endoporus that opens and closes handle also is the shape that matches therewith.

This magnetic control valve door utilizes magnetic principles to come control valve to open and close.Particularly, opening and closing handle when not being placed on the lock housing, the magnetic post in the lock body inserts under the effect of spring in the annular groove in the lock, makes the external part of valve rod be in the position of not inserting lockhole all the time.Therefore, rotating lock housing and lock body can only be idle running, can not drive valve rod and rotate together, also just can not carry out opening and closing operations to valve.Simultaneously, also because the magnetic post inserts in the annular groove of lock, lock body and lock housing are can not break away from lock.When opening and closing handle when being placed on the lock housing, at first open and close the lock function that handle can be removed magnetic lock device, promptly the magnetic post on the lock body sidewall can be in opening and closing handle adhesive and outwards moving under the effect of permanent magnet, from the annular groove of lock, withdraw from; Then, the operator can push lock housing and lock body downwards, and the external part of valve rod is inserted in the lockhole of lock body; At last,, lock body and lock housing are rotated, can drive valve rod and spool rotates together, valve is operated as long as reverse the switching handle.

Compared with prior art, advantage of the present utility model is:

1, this magnetic control valve door is to rely on the magnetic post in the lock body to stretch control valve, because the magnetic column dimension is less, and moves in the circular hole of special use, so faults such as screens can not appear in use reliable performance, flexible operation.

2, the lock housing of this magnetic control valve door is totally enclosed structure, and other people can be bored by voidlessness, can prevent effectively that valve from illegally being opened; Simultaneously, can stop that again sand dust, rainwater etc. enter in the lock body, it is impaired that valve is difficult for, and can prolong the working life of valve.

Description of drawings

Fig. 1 is the cross-sectional view of the magnetic control valve door that provides of the utility model.

Fig. 2 is the worm's eye view that handle is is provided in the magnetic control valve door that provides of the utility model.

Fig. 3 is the sectional view of Fig. 2 along A-A.

Fig. 4 is the sectional view of magnetic control valve door when valve body lumps together with the switching handle that the utility model provides.

Among the figure, 1, valve body; 2, spool; 3, valve rod; 4, seal ring; 5, lock; 51, annular groove; 52, pin; 6, lock body; 61, spring; 62, magnetic post; 63, groove; 64, lockhole; 7, lock housing; 8, open and close handle; 81, permanent magnet; 82, endoporus.

Embodiment

As shown in Figure 1 and Figure 4, the magnetic control valve door that present embodiment provided is a ball valve, and it comprises valve body 1, valve rod 3, spool 2, opens and closes parts such as handle 8, lock 5, lock housing 7 and lock body 6.Spool 2 is spherical, and the inner of valve rod 3 connects with spool 2, and the outer end of valve rod 3 has sub-fraction to stretch out lock 5.The sectional shape that valve rod 3 stretches out lock 5 parts is a square.Between valve rod 3 and lock 5, be provided with the zero shape rubber seal 4 that seals.

As shown in Figure 1, lock 5 is connected as a single entity with valve body 1, and profile is cylindrical.Cup-shaped lock body 6 left-hand threads are on lock 5.The lockhole 64 of lock body 6 top center is a square, and its size is slightly greater than the size of valve rod 3 external parts.

As shown in Figure 1 and Figure 4, the locking device of this valve comprises spring 61 and magnetic post 62.In the present embodiment, four circular holes are set evenly on the sidewall of lock body 6, all circular holes at grade.Spring 61 and magnetic post 62 all are housed in each circular hole.In addition, have an annular groove 51 at the outer side surface of lock 5, the magnetic post 62 in the above-mentioned circular hole can insert in this annular groove 51 under the effect of spring 61.At this moment, the external part of valve rod 3 is in the position of not inserting lockhole 64 on the lock body 6.That is to say that under this state, rotational lock 6 can only be idle running, can not drive valve rod 3 and spool 2 and rotate together, also just can not operate valve.

Be a lock housing 7 outside lock body 6, lock housing 7 not only is limited to spring 61 and magnetic post 62 in the circular hole of lock body 6 in lock body 6 is coated on, but also makes outside lockhole 64 is not exposed to the theftproof performance and the working life of having improved this magnetic control valve door.

As shown in Figures 2 and 3, the shape approximation that opens and closes handle 8 is cup-shaped, also be provided with four equally distributed permanent magnets 81 on the sidewall of its endoporus 82, and the position is corresponding one by one with the position of lock body 6 upper magnetic posts 62.In the present embodiment, the profile of lock housing 7 is positive eight prisms.Corresponding, endoporus 82 shapes that open and close handle 8 also are polygon-octagonal, and its size is slightly greater than the size of lock housing 7.Like this, when switching handle 7 is placed on the lock housing 6, open and close handle 7, just can drive lock housing 7 and lock body 6 and rotate together as long as pull.In addition, the external shape that opens and closes handle 8 also is eight prism-shaped, makes that operation is more laborsaving, appearance is also attractive in appearance.

As shown in Figure 1 and Figure 4, in the present embodiment, on the madial wall of lock body 6, have a groove 63, be provided with pin 52 at sidepiece corresponding to the lock 5 at groove 63 places, pin 52 is fixed together with lock 5 and inserts in the groove 63, and the width of groove 63 is much larger than the external diameter of pin 52.Pin 52 plays position-limiting action, prevents that whole lock body 6 and lock housing 7 break away from lock 5.Because the width of above-mentioned groove 63 is bigger, pin 52 can move in groove 63, so the moving up and down of pin 52 can not have influence on this magnetic control valve door when carrying out normal running lock body 6 and lock housing 7.

After being placed in this switching handle 8 on the lock housing 7, the magnetic post 62 in the lock body 6 can outwards move under the permanent magnet 81 that opens and closes handle 8 attracts, and makes magnetic post 62 break away from annular groove 51.Just can push then and open and close handle 8, the external part of valve rod 3 is inserted in the lockhole 64 of lock body 6, just make this valve be in state shown in Figure 4.At this moment, as long as rotary opening closing handle 8, the operation that can open or close this valve.Behind end of operation, transfer to open and close handle 8 and lift lock housing 7 and lock body 6, make magnetic post 62 be in the position of the annular groove 51 that inserts lock 5 again, then valve has been in the lock state again.

Claims

1, a kind of magnetic control valve door, comprise valve body (1), spool (2), valve rod (3) and one independently open and close handle (8), spool (2) is positioned at valve body (1), the inner of valve rod (3) connects with spool (2), valve body (1) is stretched out in the outer end, it is characterized in that described valve rod (3) stretches out the columned lock (5) that is being connected on the valve body (1) at place, valve rod (3) passes lock (5), lock (5) is stretched out in its end, the sectional shape of valve rod (3) external part is non-circular, and be provided with sealed picture (4) between valve rod (3) and the lock (5), lock (a 5) cup-shaped lock body of outer left-hand thread (6), the top center of lock body (6) has a lockhole (64) that matches with the external part sectional shape of valve rod (3), be provided with magnetic lock device between lock (5) and the lock body (6), this device can make the external part of valve rod (3) be in the position of not inserting above-mentioned lockhole (64), lock body (6) is covered with a lock housing (7), lock housing (7) is fixed together with lock body (6), is provided with the permanent magnet (81) that can control above-mentioned magnetic lock device in the above-mentioned switching handle (8).

2, magnetic control valve door according to claim 1, it is characterized in that described magnetic lock device is that outer side surface at lock (5) has an annular groove (51), be drilled with several circular holes on the sidewall of lock body (6), place spring (61) and magnetic post (62) in the circular hole, and under the effect of spring (61), magnetic post (62) can insert the annular groove interior (51) of lock (5); Simultaneously, an endoporus (82) that is complementary with lock housing (7) profile is arranged on the above-mentioned switching handle (8), and on the sidewall of endoporus (82), be provided with and lock body (6) upper magnetic post (62) equal number and position permanent magnet (81) one to one.

3, magnetic control valve door according to claim 2, the shape that it is characterized in that described lock housing (7) is positive polygon prism, the endoporus (82) that opens and closes handle (8) also is the shape that matches therewith.

4, magnetic control valve door according to claim 1 and 2, it is characterized in that it is square that described valve rod (3) stretches out lock (5) sectional shape partly, the lockhole (64) of lock body (6) top center also is a square, and its size is slightly greater than the size of valve rod (3) external part.

5, magnetic control valve door according to claim 2 is characterized in that evenly being provided with four circular holes on the sidewall of lock body (6), all circular holes all are equipped with spring (61) and magnetic post (62) at grade in each circular hole.

6, magnetic control valve door according to claim 5 it is characterized in that the sidewall of described switching handle (8) endoporus (82) is provided with four equally distributed permanent magnets (81), and the position is corresponding one by one with the position of lock body (6) upper magnetic post (62).

7, magnetic control valve door according to claim 3, the profile that it is characterized in that described lock housing (7) are positive eight prisms, and endoporus (82) shape that opens and closes handle (8) also is a polygon-octagonal, and its size is slightly greater than the size of lock housing (7).

8, according to claim 1,2 or 3 described magnetic control valve doors, it is characterized in that on the madial wall of lock body (6), having a groove (63), sidepiece at the lock of locating corresponding to groove (63) (5) is provided with pin (52), pin (52) is fixed together with lock (5) and inserts in the groove (63), and the width of groove (63) is much larger than the external diameter of pin (52).