CN2601339Y

CN2601339Y - Magnetic controlled valve

Info

Publication number: CN2601339Y
Application number: CN 03229287
Authority: CN
Inventors: 冯雪土
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-05
Filing date: 2003-03-05
Publication date: 2004-01-28
Anticipated expiration: 2013-03-05

Abstract

The utility model discloses a magnetic control valve, which belongs to valve technology field and resolves the problems of high costs and short service life caused by complicated structure of prior magnetic control valve. The magnetic control valve comprises a valve body, a valve stem and a lock body, a annular groove is arranged on the side of the lock body, a cover body is arranged on the lock body, the cover body comprises two round cup-shaped outer covers and inner covers, a plurality of through holes are arranged on the side wall of the inner cover, the through holes are provided with balls, the outside diameter of the ball is more than the side wall thickness of the inner cover, a notch is arranged on the inner side wall of the outer cover, a magnetic locking device is also arranged between the inner cover and the outer cover, the valve is also provided with a control handle for controlling the magnetic locking device. The magnetic control valve use the balls of the inner cover, which are embedded in the annular groove of the lock body, to combine the whole cover body and the lock body together to reach the purpose of controlling the valve. The utility model has the advantages of relative simple structure and higher reliability.

Description

The magnetic control valve door

Technical field

The utility model belongs to valve technology field, particularly a kind of valve with magnetic lock device.

Background technique

Be installed on the pipelines such as tap water or heating installation at valve after, people normally can arbitrarily open or close.But sometimes, companies such as water supply or air feed are for convenient management, and the switching that needs the dependence valve to come pilot line is illegally used with the user who prevents from not pay dues.At this moment, just need a valve with locking device.

The existing valve that has locking device roughly is divided into two classes: a class is to come the handle or the valve rod of Locked valve by methods such as mechanical cylinder lock, cipher lock or electronic locks.Though this method is feasible, subject matter is that different valves will open with different keys or password, and is for administrative staff of those control a large number of users, very inconvenient.

Another kind of is to utilize magnetic principles, adopts special tool to open.Comparatively speaking, this mode is owing to can adopt unified instrument to open, and it is more convenient to operate.But, the structure of existing magnetic control valve door is all complicated, " lock controlled ball valve " that provides as Chinese patent 992459494, it is to fix a lock body on the valve body of ball valve, two-layer permanent magnetism scapus is arranged in the lock body, the upper strata permanent magnet is fixed and held to lower floor's permanent magnet, by a jam plate valve rod can not be rotated.When Open valve, use cap shape key, have a permanent magnet bigger in the key than the magnetism intensity of permanent magnet in the upper lock body, so that the permanent magnetism scapus on lock body upper strata picked up and break away from locked groove, thus can rotation valve rod.Because complicated structure causes the cost of product too high, and occurs stuck phenomenon in use easily, influences the working life of product.

Summary of the invention

The purpose of this utility model is at the problems referred to above, and a kind of structure improved magnetic control valve door is provided, and makes it have simple in structure, easy to operate, practical characteristics.

For achieving the above object, the utility model has adopted following technical proposal: this magnetic control valve door comprises valve body, valve rod and lock body, lock body and valve body are fixed together, valve rod passes lock body, its the inner is positioned at valve body, lock body is stretched out in the outer end, there is an annular groove side that it is characterized in that above-mentioned lock body, lock body is provided with a cover body outward, cover body comprises the outer cover and the inner cover of two round cup shapes, the internal diameter of outer cover is slightly greater than the external diameter of inner cover, and between outer cover and the inner cover spring is set, spring is between the exterior edge face of the interior edge face of outer cover and inner cover, on the sidewall of inner cover, have several through holes, when inner cover covers on the lock body, through hole is in over against the position of above-mentioned annular groove, pellet shot from a slingshot is housed in the through hole, the external diameter of pellet shot from a slingshot is greater than the sidewall thickness of inner cover, be provided with in the inboard of outer cover sidewall with through hole equal number and position and be in recess under the through hole, also be provided with a magnetic lock device between inner cover and the outer cover, this valve also is furnished with the unlatching handle that can control above-mentioned magnetic lock device.

In above-mentioned magnetic control valve door, described magnetic lock device be between inner cover outer side wall and outer cover madial wall, have at least a pair of position over against lockhole, magnetic post and Returnning spring are housed in the lockhole, in opening handle, are provided with and the corresponding magnetic post of above-mentioned magnetic post.

Usually, the hole wall of above-mentioned through hole is a sphere, and its slightly larger in diameter is in the diameter of pellet shot from a slingshot.Therefore, pellet shot from a slingshot can be movable in through hole, but can not break away from through hole.

When cover body was in the lock state, the pellet shot from a slingshot in the inner cover made the part of pellet shot from a slingshot protrude inner cover under the roof pressure of the madial wall of outer cover.This magnetic control valve door is exactly to utilize the pellet shot from a slingshot in the inner cover to be embedded in the annular groove of lock body, make whole cover body can not break away from lock body, reaches control valve.When Open valve, need be placed on the cover body with the unlatching handle, make the magnetic post of opening in the handle corresponding with the magnetic post position in the cover body.Like this, under the effect in magnetic field, in lockhole of magnetic post meeting compression reseting spring retraction, this moment, outer cover can move with respect to inner cover.So under the effect of spring, outer cover rises, and is in over against the position of inner cover through hole until its recess.Like this and since pellet shot from a slingshot can part retraction recess in, therefore just can take away and use unlatching handle or other instrument to pull valve rod from lock body whole cover body, this valve is carried out opening and closing operations.

After valve operation finishes, at first overlap upper outlet body, make the through hole of inner cover be in the position of the annular groove of lock body; Then, push outer cover, the recess on the outer cover madial wall moved down, the lockhole position that makes inside and outside cover body simultaneously over against; At last, the magnetic post in the lockhole is stuck between the inside and outside cover magnetic post under the effect of Returnning spring, and pellet shot from a slingshot is embedded in the annular groove of lock body, and this valve is locked.

Compare with existing magnetic Lock controlled valve, the utility model is because in cover body and open on the handle and all have only one group of magnetic post, and quantity is the amount doesn't matter, so its structure is simple relatively, and reliability is higher during use.Simultaneously, adopted the lock mode of pellet shot from a slingshot embedding annular groove, also very convenient to the operation of this valve, have higher utility.

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 sectional view of cover body when being in opening state in the magnetic control valve door that provides of the utility model.

Among the figure, 1, valve body; 2, valve rod; 3, lock body; 31, annular groove 4, unlatching handle 41, magnetic post; 5, cover body; 51, outer cover; 52, inner cover; 53, through hole; 54, recess; 55, lockhole; 56, magnetic post; 57, Returnning spring; 58, pin; 59, groove; 6, spring; 7, pellet shot from a slingshot; 8, seal ring.

Embodiment

As shown in Figure 1, this magnetic control valve door comprises parts such as valve body 1, valve rod 2, lock body 3, cover body 5 and unlatching handle 4.In the present embodiment, lock body 3 is connected as a single entity with valve body 1.In the side of lock body 3 are annular grooves 31.Valve rod 2 passes lock body 3, and lock body 3 is stretched out in its outer end.Be provided with a rubber seal that seals 8 between valve rod 2 and the lock body 3.By the outer end of rotation valve rod 2, the operation that can open or close this valve.The type of valve can be ball valve or gate valve etc.

As depicted in figs. 1 and 2, cover body 5 comprises outer cover 51 and inner cover 52.Inside and outside cover is cup-shaped, and the gap between them is very little.

On the madial wall of the outer side wall of inner cover 52 and outer cover 51, have the position over against lockhole 55.The quantity of lockhole 55 is generally 2 to 4 pairs.In the present embodiment, lockhole 55 is provided with two pairs.A magnetic post 56 and a Returnning spring 57 are all arranged in every pair of lockhole 55.Returnning spring 57 is arranged in outer cover 51, and under the effect of Returnning spring 57, magnetic post 56 is between outer cover 51 and the inner cover 52.At this moment, outer cover 51 can not move with respect to inner cover 52.

On the sidewall of inner cover 52, have through hole 53.The quantity of through hole 53 the bests is 2 to 8.In the present embodiment, through hole 53 has four, and is uniformly distributed on the sidewall of inner cover 52.In each through hole 53 pellet shot from a slingshot 7 is arranged all.The hole wall of through hole 53 is a sphere, and the slightly larger in diameter of sphere is in the diameter of pellet shot from a slingshot 7.Because the diameter of pellet shot from a slingshot 7 so the part of pellet shot from a slingshot 7 can be protruded inner cover 52, but can not break away from inner cover 52 greater than the thickness of inner cover 52 sidewalls.

Under each through hole 53 on outer cover 51 madial walls, also be provided with a recess 54.Move on outer cover, the recess 54 that makes outer cover 51 is during over against the through hole 53 of inner cover 52, the part of pellet shot from a slingshot 7 can retraction recess 54 in.

Between inner cover 52 and outer cover 51, be provided with spring 6.In the present embodiment, spring 6 has two.When not having magnetic post 56 to block inside and outside cover,, can make on the outer cover 51 and move by the elastic force of spring 6.

As depicted in figs. 1 and 2, have a groove 59 vertically on the outer side wall of inner cover 52, the position corresponding to groove 59 on the inner side surface of outer cover 51 is provided with a pin 58.Obviously, pin 58 is embedded in the groove 59.By this structure, outer cover 51 can only be moved vertically with respect to inner cover 52, and can not be along circumferential rotation.Simultaneously, this pin 58 can also prevent that outer cover 51 breaks away from inner cover 52.

As shown in Figure 1, also be provided with two magnetic posts 41 in the unlatching handle 4 of this magnetic control valve door, and its position is corresponding with the magnetic post 56 on the cover body 5.When practical operation, at first this is opened handle 4 and be buckled on the cover body 5, and make its magnetic post 41 positions corresponding with magnetic post 56 positions on the cover body 5; Press-started slightly then handle 4, its objective is the side-friction force of eliminating between cover body 5 inside magnet columns 56 and the lockhole 55, magnetic post 56 in the cover body 5 can overcome the elastic force of Returnning spring 57 under magnetic post 41 the action of a magnetic fields in opening handle 4 like this, in the lockhole 55 of retraction outer cover 51; At last, in the elastic force effect of spring 6, move in outer cover 51 meetings.But when the recess 54 that moves to outer cover 51 on the outer cover 51 during,, outer cover 51 is moved on can not continuing, promptly be in position shown in Figure 2 because pin 58 has moved to the end of groove 59 over against through hole 53 positions of inner cover 52.Can take off whole cover body 5 this moment from lock body 3, use to open instrument rotation valve rod 2 outer ends such as handle or spanner, the operation that valve is opened or closed.

Behind end of operation, as long as cover body 5 is buckled on the lock body 3 again, and push outer cover 51, magnetic post 56 in the outer cover 51 is entered in the lockhole 55 of inner cover 52, make the recess 54 of outer cover 51 madial walls depart from the through hole 53 of inner cover 52 simultaneously, promptly utilize the madial wall roof pressure pellet shot from a slingshot 7 of outer cover 51, pellet shot from a slingshot 7 is embedded in the annular groove 31 of lock body 3, just can make whole cover body 5 can not break away from lock body 3.

At this moment, whole cover body 5 can circumferentially freely rotate in lock body 3 upper edges.But,, just can't operate this valve if there is not special-purpose unlatching handle 4.

Claims

1, a kind of magnetic control valve door, comprise valve body (1), valve rod (2) and lock body (3), lock body (3) is fixed together with valve body (1), valve rod (2) passes lock body (3), its the inner is positioned at valve body (1), lock body (3) is stretched out in the outer end, there is an annular groove (31) side that it is characterized in that described lock body (3), the outer cover body (5) that is provided with of lock body (3), cover body (5) comprises the outer cover (51) and the inner cover (52) of two round cup shapes, the internal diameter of outer cover (51) is slightly greater than the external diameter of inner cover (52), and between outer cover (51) and the inner cover (52) spring (6) is set, spring (6) is positioned between the exterior edge face of the interior edge face of outer cover (51) and inner cover (52), on the sidewall of inner cover (52), have several through holes (53), when inner cover (52) covers on the lock body (3), through hole (53) is in over against the position of above-mentioned annular groove (31), pellet shot from a slingshot (7) is housed in the through hole (53), the external diameter of pellet shot from a slingshot (7) is greater than the sidewall thickness of inner cover (52), be provided with in the inboard of outer cover (51) sidewall with through hole (53) equal number and position and be in recess (54) under the through hole (53), also be provided with a magnetic lock device between inner cover (52) and the outer cover (51), this valve also is furnished with the unlatching handle (4) that can control above-mentioned magnetic lock device.

2, magnetic control valve door according to claim 1, it is characterized in that described magnetic lock device be between inner cover (52) outer side wall and outer cover (51) madial wall, have at least a pair of position over against lockhole (55), magnetic post (56) and Returnning spring (57) are housed in the lockhole (55), in opening handle (4), are provided with and the above-mentioned corresponding magnetic post of magnetic post (56) (41).

3, magnetic control valve door according to claim 1 and 2, the hole wall that it is characterized in that described through hole (53) is a sphere, its slightly larger in diameter is in the diameter of pellet shot from a slingshot (7).

4, magnetic control valve door according to claim 2, the quantity that it is characterized in that described lockhole (55) are 2 to 4 pairs.

5, magnetic control valve door according to claim 2 is characterized in that described Returnning spring (57) is arranged in outer cover (51), and under the effect of Returnning spring (57), magnetic post (56) is between outer cover (51) and the inner cover (52).

6, magnetic control valve door according to claim 1 and 2, the quantity that it is characterized in that described through hole (53) are 2 to 8.

7, magnetic control valve door according to claim 1 and 2 is characterized in that having a groove (59) vertically on the outer side wall of inner cover (52), and the position corresponding to groove (59) on the inner side surface of outer cover (51) is provided with a pin (58).