CN2628832Y

CN2628832Y - Valve with lock

Info

Publication number: CN2628832Y
Application number: CN 03255336
Authority: CN
Inventors: 张时杰; 洪志保; 陈建强; 陈永芳
Original assignee: JINFAN PIPE FITTINGS CO Ltd NINGBO
Current assignee: JINFAN PIPE FITTINGS CO Ltd NINGBO
Priority date: 2003-07-04
Filing date: 2003-07-04
Publication date: 2004-07-28
Anticipated expiration: 2013-07-04

Abstract

A lock valve consists of a valve body, a valve core arranged inside the valve body, a valve rod with one end connected with the valve core, and a handle connected with the other end of the valve rod. The utility model is characterized in that a lock core is arranged inside the handle, and a convex hole is arranged on the head face of the valve body adjacent to the handle. A lockpin hole vertical to the rotating axis of the lock core is arranged at the correspondence position of the handle. Inside the lockpin hole a lockpin is arranged which can be inserted into the convex hole on the valve body, and also a spring which can force the lockpin to leave the convex hole automatically is arranged. The lock core is arranged with a nick at a position corresponding to the lockpin. Besides, as far as a ball valve is concerned, the valve rod can be flat and at least one protuberant position that can stop the valve from rotating is arranged on the corresponding inner wall of the hole of the valve body. With the lock device arranged between the handle and the valve body, the utility model avoids a specific structural transformation to a valve rod, which is not only convenient to arrange but also low in manufacture cost. A restriction to the relative position of the corresponding hole of the valve rod of the ball valve and the valve body can make the rotation range of the valve rod restricted accurately within 90 degrees, in one way, a rapid and accurate lockout action can be finished when a valve is closed and thereby a traditional rotation-restricting mechanism arranged between the handle and the exterior of the valve body is omitted in another way.

Description

A kind of Valve with lock

Technical field

The utility model relates to a kind of valve, particularly a kind of Valve with lock.

Background technique

Traditional valve does not have locking device, after also soon valve will be installed on the pipeline, it can arbitrarily be opened or be closed, and for the company of water supply, heating or air feed, carry out timing, supply in limited time or the user who does not on schedule pay dues is carried out stop supplies by locking device is installed on valve, a kind of good method of can yet be regarded as, for this reason, various Valve with lock arise at the historic moment, its working principle is roughly the same, all be the valve rod in the valve to be locked by lockset, and then the keying of control valve.As the patent No. is design proposal Chinese utility model patent " Ball Valve With Lock " (notification number is CN2430586Y) that 99222999.5 the Chinese utility model patent " Valve with lock " (notification number is CN2364298Y) and the patent No. are ZL00241533.X all is, its principle all is that valve rod is carried out structural change, offer groove or shrinkage pool thereon, enter or withdraw from therebetween by lock pin or lock core, thereby reach the locking or the purpose of unblanking; But because valve rod is rotating in use, and because the wearing and tearing after the tolerance of assembling or long-time the use, groove when closing on it or shrinkage pool are just not necessarily all the time towards the direction of initial setting, thereby can't realize locking fast and accurately, also Just because of this, this class Valve with lock needs higher precision when making and assemble, increased extra manufacture cost virtually.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of Valve with lock that does not change stem structure and can lock the handle of valve at above-mentioned prior art present situation.

Another technical problem to be solved in the utility model provides a kind of ball valve type Valve with lock that can carry out lock out action when valve closing quickly and accurately.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: this Valve with lock comprises valve body, be arranged on the spool in the valve body, valve rod that one end links to each other with spool and the handle that links to each other with the valve rod the other end, it is characterized in that in described handle, being provided with lock core, and valve body is provided with a shrinkage pool on the end face of contiguous handle, handle has in the corresponding position and the perpendicular lockpin hole of the rotating shaft of described lock core, be provided with the lock pin that can insert described valve body upper concave hole therein, and be provided with one and force lock pin to leave the spring of this shrinkage pool automatically, described lock core then has a breach to position that should lock pin.

Described lock pin can be the T font, and described spring housing is outside it, and the upper end withstands on the step of lock pin, and the lower end then withstands on the lockpin hole mounting that is fixed as one with handle.

For ball valve, its valve rod just in time turns over 90 ° from full-gear to closed condition, therefore when valve closing, can make described lock pin aim at described valve body shrinkage pool and insertion quickly and accurately, described valve rod can be flat, and the hole inwall of valve body correspondence is provided with the protruding part that at least one can stop that valve rod rotates; And when having two protruding parts that can stop the valve rod rotation on the inwall of the hole of valve body correspondence, size Selection is proper, and can accurately limit valve rod can only be 90 ° of positive and negative rotations of scope.

Compared with prior art, the utility model is owing to be arranged on locking device between handle and the valve body, thereby avoided valve rod is carried out specific structure of modification, and is not only easy to assembly, and low cost of manufacture; And for the embodiment of ball valve, qualification by valve rod and valve body corresponding aperture relative position, the slewing area of valve rod accurately is limited within 90 °, both can when valve closing, can carry out lock out action quickly and accurately, and can therefore omit the rotation that is arranged in the conventional construction between handle and the valve body outside again and limit mechanism.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment when being in full-gear.

Fig. 2 for embodiment illustrated in fig. 1 be in closed condition and lock after the A-A cross-sectional schematic.

Fig. 3 is the B-B sectional view of Fig. 1.

Fig. 4 is the C-C sectional view of Fig. 2.

Fig. 5 is the C-C sectional view of Fig. 2 when unblanking.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 5, be a Ball Valve With Lock embodiment, comprise valve body 1, be arranged on the spool 2 in the valve body 1, valve rod 3 that one end links to each other with spool 2 and the handle 4 that links to each other with valve rod 3 the other ends, in described handle 4, be provided with lock core 6, and valve body 1 is provided with a shrinkage pool 10 on the end face of contiguous handle 4, handle 4 has the lockpin hole 41 perpendicular with the rotating shaft of described lock core 6 in the corresponding position, be provided with the T font lock pin 7 that can insert described valve body 1 upper concave hole 10 therein, one pressure spring 8 is enclosed within outside it, the upper end withstands on the step of lock pin 7, the lower end then withstands on lockpin hole 41 mountings 9 that are fixed as one with handle 4, thereby force lock pin 7 to have the trend of leaving this shrinkage pool 11 automatically, described lock core 6 is then in that position that should lock pin 7 is had a breach 61, referring to Fig. 1, Fig. 2;

Described valve rod 3 is flat, and hole 11 inwalls of valve body 1 correspondence are provided with two protruding part 11a that can stop that valve rod 3 rotates, and has suitable dimensions and make the valve rod 3 can only be 90 ° of positive and negative rotations of scope, referring to Fig. 3.

When needs are locked, at first, handle with sleeve 4 to valve is in closed condition, at this moment, insert key 5, rotational lock core 6, make the breach 61 of lock core 6 leave lock pin 7 gradually, lock pin 7 therefore by all the other positions of lock core 6 to pressing down, insert in shrinkage pool 10 holes on the valve body, can extract key 5 this moment, handle 4 is locked, can't Open valve, referring to Fig. 3, Fig. 4;

When needs are unblanked, insert key 5, rotational lock core 6, relative until the breach of lock core 6 with lock pin 7, this moment, lock pin 7 moved on automatic under the effect of its pressure spring 8, left the shrinkage pool 10 on the valve body, and can extract key 5 this moment, handle 4 is disengaged locking, can Open valve, and referring to Fig. 5.

Claims

1, a kind of Valve with lock, comprise valve body (1), be arranged on the spool (2) in the valve body (1), valve rod (3) that one end links to each other with spool (2) and the handle (4) that links to each other with valve rod (3) the other end, it is characterized in that in described handle (4), being provided with lock core (6), and valve body (1) is provided with a shrinkage pool (10) on the end face of contiguous handle (4), handle (4) has the lockpin hole (41) perpendicular with the rotating shaft of described lock core (6) in the corresponding position, be provided with the lock pin (7) that can insert described valve body (1) upper concave hole (10) therein, and be provided with one and force lock pin (7) to leave the spring (8) of this shrinkage pool (10) automatically, described lock core (6) then has a breach (61) to position that should lock pin (7).

2, Valve with lock according to claim 1 is characterized in that described lock pin (7) is the T font, and described spring (8) is enclosed within outside it, and the upper end withstands on the step of lock pin (7), and the lower end then withstands on the lockpin hole mounting (9) that is fixed as one with handle (4).

3, Valve with lock according to claim 1 and 2 is characterized in that it is a ball valve, and described valve rod (3) is flat, and corresponding hole (11) inwall of valve body (1) is provided with the protruding part (11a) that at least one can stop that valve rod (3) rotates.

4, Valve with lock according to claim 3, it is characterized in that described valve body (1) has two protruding parts (11a) that can stop that valve rod (3) rotates on hole (12) inwall corresponding with valve rod (3), and accurately limit valve rod (3) can only be 90 ° of positive and negative rotations of scope.