CN2627299Y

CN2627299Y - Lock control ball valve

Info

Publication number: CN2627299Y
Application number: CN 03232670
Authority: CN
Inventors: 杨胜权
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-28
Filing date: 2003-06-28
Publication date: 2004-07-21
Anticipated expiration: 2013-06-28

Abstract

The utility model provides a lock control ball valve, belonging to the valve technical field, which solves the problems of the prior ball valve with lock on complicated structure and difficult operation. The lock control ball valve comprises a valve body, a valve core, a valve rod, as well as a handle; the valve core is positioned in the valve body, the valve rod inner end is connected with the valve core; the outer end extends out of the valve body and is connected with the handle; the valve body upper part is provided with a lock body; the lock body is fixedly connected with the valve body; the valve body is provided with a lock core, and is provided with a key used for unlock; the valve rod outer end is positioned in the lock body bottom part; the lock body side surface is opened with a long-shaped through hole along the handle rotation direction; the handle passes the through hole; the through hole will not resist the handle rotation when conducting the regular operation to the ball valve; the handle inner end is connected with the lock core end. The lock control ball valve has compact and reasonable structure comparatively laborsaving to the open and close operation of the ball valve, relatively low product cost, long service life, as well as higher practical value.

Description

Lock controlled ball valve

Technical field

The utility model belongs to valve technology field, particularly a kind of valve that has locking device.

Background technique

Ball valve is simple in structure with it, good seal performance and being widely used in the various pipelines, brings a lot of convenience for people's life.But in many occasions, people need install a valve that has locking device on tap water, heating installation or gaspipe line, so that management.In existing Valve with lock, have and utilize bullet lock, electronic lock or cipher lock to come control valve.Many structures have also been applied for patent, and as " the lock control spherical valve " that Chinese patent 962012033 provides, it is to increase lock body, lock pin on existing ball-type valve body, ball core, valve rod, gland, utilize lock body to stir lock pin, lock pin control ball core pin-and-hole, the ball core rotates, and finishes the unlatching of valve.In the ball valve of this structure, bigger to the improvement of existing ball valve because the sidepiece of valve rod and handle is located in the position of lock body, although therefore can reach the purpose of lock control, its structure is complicated, has increased the cost of product.

In other lock controlled ball valve, also there is structure better simply.As " Ball Valve With Lock " that Chinese patent 992545749 provides, it is made up of mechanical cylinder lock and ball valve two-part, and valve body on the ball valve and valve rod connect with lock body and the lock core that mechanical billiard is locked respectively.It is directly to drive valve rod by key behind lock core to rotate, and ball valve is operated.In this Ball Valve With Lock, omitted handle, structure is simpler.But this ball valve rotates owing to directly drive valve rod with key in actual use, and effort during operation is had relatively high expectations to the mechanical property of key and lock core simultaneously, and the key phenomenon that fractures takes place easily, directly influences the normal use of ball valve.

Summary of the invention

The purpose of this utility model is at the problems referred to above, and a kind of lock controlled ball valve that corrects structure is provided, and makes it have the characteristics of simple in structure, rapid operation, long service life.

For achieving the above object, the utility model has adopted following technical proposal: this lock controlled ball valve comprises valve body, spool, valve rod and handle, spool is positioned at valve body, the inner of valve rod connects with spool, the outer end is stretched out valve body and is connected with handle, the top of valve body is provided with lock body, lock body and valve body are fixed together, lock core is arranged in the lock body, also be furnished with the key that is used to unblank, the outer end of valve rod is positioned at the bottom of lock body, the side of lock body has a strip through-hole along the direction that handle rotates, handle passes through hole, and this through hole can not stop the rotation of handle when ball valve is carried out normal running, and the inner of handle connects with the inner of lock core.

In above-mentioned lock controlled ball valve, the inner of described handle is provided with a non-circular plush copper, the recess that the inner of lock core has plush copper shape therewith to be complementary, and plush copper inserts in the recess.

In above-mentioned lock controlled ball valve, also can be to be provided with a non-circular plush copper in the inner of lock core, the recess that the inner of handle has plush copper shape therewith to be complementary, plush copper inserts in the recess.

In this lock controlled ball valve, handle and lock core are interaction relation, and therefore after pinning lock core by lock body, handle just can't rotate, and also just ball valve can not be opened or are closed; Have only after key inserts lock core, lock core can freely rotate, and could operate this ball valve by handle.

Advantage of the present utility model is:

1, in this lock controlled ball valve, because lock body and lock core are arranged at the connection place of valve rod and handle, its compact structure is reasonable, and the cost of product is lower, has higher utility.

2, this lock controlled ball valve has been owing to kept original handle, and is more laborsaving to the unlatching of ball valve or the operation of closing, and also can prolong the working life of product simultaneously.

Description of drawings

Fig. 1 is the cross-sectional view of the lock controlled ball valve that provides of the utility model.

Fig. 2 is the profile schematic representation of the lock controlled ball valve that provides of the utility model.

Among the figure, 1, valve body; 2, valve rod; 3, spool; 4, seal ring; 5, handle; 50, plush copper; 6, lock body; 7, lock core; 70, recess; 8, key; 9, through hole.

Embodiment

As shown in Figure 1, the lock controlled ball valve that provides of the utility model comprises parts such as valve body 1, spool 3, valve rod 2, handle 5, lock body 6 and lock core 7.Spool 3 is spherical, and the inner of valve rod 2 connects with spool 3, and the outer end of valve rod 2 is stretched out valve body 1 and connected with handle 5.Also be provided with the zero shape rubber seal 4 that seals between valve rod 2 and the valve body 1.

As depicted in figs. 1 and 2, in the present embodiment, lock body 6 is connected as a single entity with valve body 1, and lock core 7 is positioned at lock body 6.Lock body 6 and lock core 7 adopt the structure of bullet lock.After key 8 inserted lock core 7, lock core 7 can freely rotate.

The direction that rotate along handle 5 side of lock body 6 has the through hole 9 of a bar shaped.After handle 5 passes this through hole 9, be fixed together with the outer end of valve rod 2.The width of through hole 9 is between 1/4th girths to a two/girth of lock body 6 surperficial circumference, and the rotation angle of handle 5 can not surpass 90 degree during to the operation of ball valve, so through hole 9 can not stop the rotation of handle 5.

As shown in Figure 1, in the present embodiment, the inner of handle 5 is provided with a plush copper 50, plush copper 50 be shaped as in-line, also there is the recess 70 that is complementary therewith the inner of lock core 7.Plush copper 50 inserts in the recess 70, makes to be interaction relation between handle 5 and the lock core 7.

When above-mentioned bullet lock was in the lock state, handle 5 can not rotate, and therefore also just can not operate ball valve.When needing unlatching or closing this lock controlled ball valve, at first key 8 to be inserted in the lock cores 7, just can operate on it then.Obviously, in operating process, the user drives valve rod 2 by handle 5 and rotates, and needn't reverse key 8, so as long as adopt the key 8 of common specification.

Claims

1, a kind of lock controlled ball valve, comprise valve body (1), spool (3), valve rod (2) and handle (5), spool (3) is positioned at valve body (1), the inner of valve rod (2) connects with spool (3), the outer end is stretched out valve body (1) and is connected with handle (5), the top of valve body (1) is provided with lock body (6), lock body (6) is fixed together with valve body (1), lock core (7) is arranged in the lock body (6), also is furnished with the key (8) that is used to unblank, the outer end of valve rod (2) is positioned at the bottom of lock body (6), the side that it is characterized in that described lock body (6) has a strip through-hole (9) along the direction that handle (5) rotates, handle (5) passes through hole (9), and this through hole (9) can not stop the rotation of handle (5) when ball valve is carried out normal running, and the inner of handle (5) connects with the inner of lock core (7).

2, lock controlled ball valve according to claim 1, the inner that it is characterized in that described handle (5) is provided with a non-circular plush copper (50), the recess (70) that the inner of lock core (7) has plush copper (50) shape therewith to be complementary, plush copper (50) inserts in the recess (70).

3, lock controlled ball valve according to claim 1 is characterized in that the inner of described lock core (7) is provided with a non-circular plush copper, the recess that the inner of handle (5) has plush copper shape therewith to be complementary, and plush copper inserts in the recess.

4,, it is characterized in that described lock body (6) and lock core (7) adopt the structure of bullet lock according to claim 1,2 or 3 described lock controlled ball valves.

5, according to claim 1,2 or 3 described lock controlled ball valves, the width that it is characterized in that described through hole (9) is between 1/4th girths to a two/girth of the surperficial circumference of lock body (6).

6, lock controlled ball valve according to claim 2 is characterized in that the in-line that is shaped as of described plush copper (50), and also there is the recess (70) that is complementary therewith the inner of lock core (7).