CN2233488Y

CN2233488Y - Non-repetitive charging valve

Info

Publication number: CN2233488Y
Application number: CN 95224797
Authority: CN
Inventors: 方长青; 吴一江; 叶晓茹
Original assignee: Juhua Group Corp
Current assignee: Juhua Group Corp
Priority date: 1995-10-31
Filing date: 1995-10-31
Publication date: 1996-08-21
Anticipated expiration: 2005-10-31

Abstract

The utility model discloses a non-repetitive charging valve which can carry out charging for the first time, which comprises a C-shaped ring (or a plum blossom ring) 1 and a movable valve core (2), wherein, the valve core 2 is positioned on the C-shaped ring (or the plum blossom ring) 1; the integral position of the C-shaped ring (or the plum blossom ring) 1 and the valve core 2 is lower than the lowest surface of the inlet and the outlet of the valve. An opening of the C-shaped ring (or the plum blossom ring) 1 is positioned opposite to the inlet and the outlet of the valve and is protected by a valve rod 3. Due to the smaller opening of the plum blossom ring, extending objects can only arrive at the upper surface of the valve core 2, which can avoid the condition that thin iron wire or similar objects extend to chock the valve core 2 to carry out the repetitive charging. The utility model is mainly used for non-repetitive charging steel cylinders or similar disposable containers, keeps the integration of the medium and the quality of the cylinders and avoids serious accidents of personal safety caused by the repeated use of the non-repetitive charging steel cylinders or similar disposable containers.

Description

Non-once-used filling valve

The utility model relates to a kind of one-way valve, is mainly used on the non-refillable steel cylinder or similar disposable Bottle ﹠ Can of splendid attire pressure medium; It promptly can't be irritated after medium charges, closes first carrying out again.

On non-refillable steel cylinder or similar one-trip bottle jar, in order to guarantee the integrated of splendid attire medium and Bottle ﹠ Can, prevent to fill excellently with bad, the serious personal safety problem of avoiding in violation of rules and regulations reusing such disposable Bottle ﹠ Can and being brought needs to use non-once-used filling valve.U.S. A Muteluoer company has produced a kind of non-once-used filling valve (U.S. Register number 4573611), and its structure in the ordinary course of things, can reach and promptly can not irritate after medium charges first again as shown in Figure 1.But using any special measures, filling up the sealed mouth place in the valve pocket such as stretching into a thin wire, then can't avoid irritating again, this had carried out experimental verification.In fact some users also carry out medium with similar method and irritate.

The utility model proposes and a kind ofly can prevent to adopt any special measures to carry out the non-once-used filling valve of once-used filling effectively.

The purpose of this utility model is achieved in that a movable spool in valve pocket; this spool places on the C shape ring (or plum blossom ring); and C shape ring (or plum blossom ring) and movable spool integral position are lower than valve and import and export k level; C shape ring (or plum blossom ring) opening is positioned at the opposite of import and export and is protected by valve rod and spool; the plum blossom ring is less because of breach; stretch into thing and can only arrive plane on the spool, and can't fill up spool, can't irritate again.

Fig. 1 utilizes thin wire to carry out medium on non-once-used filling valve produced in USA to irritate again;

Fig. 2 is movable spool;

Fig. 3 is C shape ring;

Fig. 4 is the plum blossom ring;

Fig. 5 is non-once-used filling valve closed condition;

Fig. 6 is non-once-used filling opening of valves state;

Fig. 7 is for irritating by the once-used filling valve again;

Fig. 8 stretches into thing for non-once-used filling valve prevents to adopt and irritates.

Below in conjunction with accompanying drawing the utility model is further described.

1, charge first:

Non-once-used filling valve is before Bottle ﹠ Can charges medium, and its spool is placed on the C shape ring (or plum blossom ring), and medium can be charged in the bottle by the indentation, there of C shape ring (or plum blossom ring).

2, storage and transportation:

Charge first finish after, valve just is closed, as shown in Figure 5, spool 2 enters movable chamber by C shape ring (or plum blossom ring) 1 under the pressure of valve rod 3, be pressed on valve seal mouth place by valve rod 3 at last, thereby pressure medium is sealed in the Bottle ﹠ Can, makes the Bottle ﹠ Can storage medium and transport.

3, dissolution medium in use:

As shown in Figure 6, after valve rod 3 was unscrewed, because pressure medium is than external pressure height in the bottle, movable spool 2 left sealed mouth, and a bottle interior medium is normally flowed out; After the medium of q.s flowed out, valve rod 3 was screwed, and spool 2 is compacted to sealed mouth, and medium is sealed again, uses until next time again.

4, not reproducible filling again:

After spreadable life of bottle or All Media use, if cylinder valve is connected to a pressure source higher than pressure of the inside of a bottle, and unscrew valve rod 3, no matter where bottle is in, movable spool 2 all can be depressed into sealed mouth under pressure and realize sealing, thereby prevent the filling again of any medium, as shown in Figure 7.

Attempt firmly spool 2 of pad if adopt thin wire or the similar thing that stretches into, because being lower than, spool 2 and C shape ring in the utility model structure (or plum blossom ring) 1 position imports and exports the plane, and C shape is encircled 1 opening and is located at the import and export opposite, stretching into thing will be blocked by valve rod 3 and spool 2 and can't enter the sealed mouth place, can't irritate again, as shown in Figure 8.

Claims

1, a kind of non-once-used filling valve is made up of valve rod, spool, seal ring, it is characterized in that being equipped with on the movable spool C shape ring, and before charging first, movable spool is blocked by C shape ring, and spool promptly can't be got back to above the C shape ring after in a single day being pressed into movable chamber.

2, non-once-used filling valve according to claim 1 is characterized in that C shape ring and movable valve element position all are lower than valve and import and export k level.

3, non-once-used filling valve according to claim 1 is characterized in that C shape ring opening is positioned at the opposite that valve is imported and exported, and can be protected by valve rod.

4, non-once-used filling valve according to claim 1 is characterized in that respectively there are an aperture or breach in C shape ring and two end part, is convenient to C shape ring and installs.

5, non-once-used filling valve according to claim 1 is characterized in that the shape of C shape ring can be quincunx.

6, non-once-used filling valve according to claim 1 is characterized in that C shape ring is to be clamped in the valve body or the part with analogous shape that processes on the valve body body.

7, non-once-used filling valve according to claim 1 is characterized in that there is concavo-convex but not whole plane on the plane on the movable spool.