CN203906993U

CN203906993U - Small-flow anti-theft ball valve

Info

Publication number: CN203906993U
Application number: CN201420341558.1U
Authority: CN
Inventors: 张维昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-25
Filing date: 2014-06-25
Publication date: 2014-10-29
Anticipated expiration: 2024-06-25

Abstract

The utility model discloses a small-flow anti-theft ball valve which comprises a valve body, a valve element, a valve rod and a lock cover provided with a mechanical lock, wherein the valve element is placed in the valve body, the valve rod is connected onto the valve element, the valve body is provided with an anti-theft sleeve, and the lock cover is arranged in the anti-theft sleeve and is matched with a ring groove in the inner wall of the anti-theft sleeve through a first bolt on the lock cover. The small-flow anti-theft ball valve is characterized in that a retainer is arranged on the valve rod, the lower end of the retainer is fixedly connected with the valve rod, a cavity is formed in the upper end, a second bolt is arranged at the lower end of the mechanical lock, a groove matched with the second bolt is formed in the inner wall of the cavity, and the lower end of the mechanical lock is arranged in the cavity. Loss of the lock cover can be avoided due to the anti-theft lock cover, and operation on the valve rod is facilitated.

Description

Small flow Anti-theft ball valve

Technical field

The utility model relates to a kind of ball valve, particularly a kind of small flow Anti-theft ball valve.

Background technique

Anti-theft ball valve is used in the transfer conduit of valuable medium, generally disposes theft-prevention structure thereon, to prevent that the stolen or misoperation of medium in pipeline from causing the problems such as medium leakage.Anti-theft ball valve in tradition, its theft-prevention structure is a locking closure with mechanical lock or electromagnetic lock, mechanical lock or electromagnetic lock coordinate and locking closure are locked onto on valve body with the corresponding construction on valve body, and can locking closure be taken off by limited meanses such as keys, so that the valve rod in valve body is operated.But after locking closure is taken off, certainly will locking closure will be placed on to a side and carry out follow-up operation, this can cause locking closure very easily to be lost, and the putting to take off and all make the operation of this traditional Anti-theft ball valve very inconvenient of locking closure.

Summary of the invention

For the deficiencies in the prior art, problem to be solved in the utility model is to provide a kind of locking closure and is difficult for losing and small flow Anti-theft ball valve more convenient to operate.

For this reason, the utility model is realized in the following way: a kind of small flow Anti-theft ball valve, comprise valve body, spool, valve rod and with the locking closure of mechanical lock, described spool is placed in valve body, described valve rod is connected on spool, described valve body has burglarproof sleeve, described locking closure is placed in burglarproof sleeve, and coordinate with the annular groove on burglarproof sleeve inwall by the first dead bolt on it, it is characterized in that: described valve rod is provided with retainer, described retainer lower end is fixedly connected with valve rod, upper end is provided with cavity, described mechanical lock lower end has the second dead bolt, described cavity inner wall is provided with the groove mating with the second dead bolt, described mechanical lock lower end is placed in cavity.

In the utility model, by the second dead bolt is inserted in the second locked groove, locking closure can be connected with retainer, thereby locking closure is connected with valve rod, now only need to carry out rotating operation to locking closure, can operate valve rod, and realize the switching of ball valve or the adjusting of flow.Visible, this Anti-theft ball valve, in the time that valve rod is operated, without locking closure is taken off, has been avoided the loss of locking closure, has also facilitated operation.

As preferably; also comprise protective cover; described burglarproof sleeve upper-end surface is provided with the annular groove that is spirally connected; described protective cover lower end surface is provided with the annular projection mating with the annular groove that is spirally connected; on described be spirally connected annular groove inwall and annular projection, be respectively equipped with corresponding screw thread, described annular projection is screwed onto and is spirally connected in annular groove.After this protective cover is connected on burglarproof sleeve upper-end surface by annular projection, can effectively intercepts rain and impurity etc. and enter in burglarproof sleeve, effectively protect valve rod and spool.

Brief description of the drawings

Fig. 1 is decomposition texture schematic diagram of the present utility model;

Fig. 2 is composite structure schematic diagram of the present utility model.

Embodiment

With reference to accompanying drawing, this small flow ball valve, comprise valve body 1, spool, valve rod 3 and with the locking closure 12 of mechanical lock 13, described spool is placed in valve body 1, described valve rod 3 is connected on spool, described valve body 1 has burglarproof sleeve 2, described locking closure 13 is placed on the step 8 in burglarproof sleeve 2, and coordinate with the annular groove 7 on burglarproof sleeve 2 inwalls by the first dead bolt 9 on it, described valve rod 3 is provided with retainer 4, described retainer 4 lower ends are fixedly connected with valve rod 3, upper end is provided with cavity 6, described mechanical lock 13 lower ends have the second dead bolt 14, described cavity 5 inwalls are provided with the groove 5 mating with the second dead bolt 14, described mechanical lock 13 lower ends are placed in cavity 6, also comprise protective cover 10, described burglarproof sleeve 2 upper-end surfaces are provided with the annular groove 15 that is spirally connected, described protective cover 10 lower end surfaces are provided with the annular projection 11 mating with the annular groove 15 that is spirally connected, on described be spirally connected annular groove 15 inwalls and annular projection 11, be respectively equipped with corresponding screw thread, described annular projection 11 is screwed onto and is spirally connected in annular groove 15.Under the anti-theft locking state of Anti-theft ball valve; the first dead bolt 9 stretches out the lock housing of mechanical lock 13 and stretches in annular groove 7; thereby locking closure 12 is longitudinally locked in burglarproof sleeve 2; make the locking closure 12 can be in the interior rotation of burglarproof sleeve 2 and cannot be from the interior taking-up of burglarproof sleeve 2; valve rod 3 is carried out to antitheft operation protection effect, and the second dead bolt 14 is retracted in the lock housing of mechanical lock 13 simultaneously.At needs, valve rod 3 is operated and be, rotating protective cover 10 takes off it from burglarproof sleeve 2, insert again the key turns of mechanical lock 13, the first dead bolt 9 is exited in annular groove 7, now, people have two kinds of selections, one is from the interior taking-up of burglarproof sleeve 2 by locking closure 12, and directly by operating grip, the retainer 4 on valve rod 3 is carried out to rotating operation, and then operating valve lever 3, another kind is to be rotated further key, make the second dead bolt 14 of mechanical lock 13 stretch out housing and be inserted in groove 5, make mechanical lock 13 and retainer 4 realize footpath locking upwards, namely make retainer 4 enough rotate with mechanical lock 13 and rotate, therefore, drive retainer 4 to rotate by rotating locking closure 12 driving mechanical lock 13 rotations, and then band ovable valve stem 3 rotates, just can operate valve rod 3.

Claims

1. a small flow Anti-theft ball valve, comprise valve body, spool, valve rod and with the locking closure of mechanical lock, described spool is placed in valve body, described valve rod is connected on spool, described valve body has burglarproof sleeve, described locking closure is placed in burglarproof sleeve, and coordinate with the annular groove on burglarproof sleeve inwall by the first dead bolt on it, it is characterized in that: described valve rod is provided with retainer, described retainer lower end is fixedly connected with valve rod, upper end is provided with cavity, described mechanical lock lower end has the second dead bolt, described cavity inner wall is provided with the groove mating with the second dead bolt, described mechanical lock lower end is placed in cavity.

2. small flow Anti-theft ball valve according to claim 1; it is characterized in that: also comprise protective cover; described burglarproof sleeve upper-end surface is provided with the annular groove that is spirally connected; described protective cover lower end surface is provided with the annular projection mating with annular groove; on described be spirally connected annular groove inwall and annular projection, be respectively equipped with corresponding screw thread, described annular projection is screwed onto and is spirally connected in annular groove.