Quick connector for gas cylinder valve
Technical Field
The utility model relates to a valve connection design field especially relates to a quick-operation joint for gas cylinder valve.
Background
The quick joint comprises a hydraulic quick joint and various fluid quick joints, and is a connecting device for quickly connecting or disconnecting pipelines and realizing quick assembly and disassembly. The quick connector has a bidirectional non-return function, so that the pipeline is free from leakage when disconnected, and therefore, the quick connector is widely applied to the fields of petroleum, metallurgy, hydropower, engineering machinery, ships, electromechanical equipment and the like.
The traditional fluid medium quick butt joint operation is generally to butt joint a conveying pipe with a quick joint and a valve with the quick joint for conveying. However, when the conveying pipe with the quick connector needs to be pulled out, the conveying pipe with the quick connector is in a high-pressure state, the pulling out is difficult, and a large force needs to be used; the high pressure in the pipe rushes out the conveying pipe with the quick connector at the moment of pulling out, and the conveying pipe is easy to fly out and smash people or objects around, so that potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects in the prior art, the utility model provides a quick-operation joint for gas cylinder valve has realized water conservancy diversion, springiness cushioning pressure release, improves butt joint separation efficiency, has solved current quick-operation joint and has extracted the difficulty, at the intraductal high pressure in the twinkling of an eye of extracting the problem that the conveyer pipe of taking quick-operation joint rushed out.
For realize above-mentioned water conservancy diversion, elastic buffer pressure release, improve butt joint separation efficiency's purpose, the utility model provides a following technical scheme: a quick connector for a gas cylinder valve comprises a male connector for connecting a valve and a female connector for connecting a conveying pipe, wherein the female connector is fixedly inserted in the male connector through a locking mechanism;
track grooves are formed in the middle sections of the inner side walls of the male connector and the female connector, a fluid director is axially and rotatably arranged in the track grooves, a valve core main body is arranged on the fluid director in a penetrating mode, one end, away from the fluid director, of the valve core main body is provided with a contact part, a reset spring is sleeved on the valve core main body, one end of the reset spring is in contact with the fluid director, and the other end of the reset spring is in contact with the contact part;
the limiting part used for clamping the collision part when the male connector and the female connector are in a separation state is arranged on the inner side wall of the male connector and the inner side wall of the female connector.
Furthermore, axial grooves are formed in the joint of the male joint and the female joint, a plurality of axial grooves are arranged at equal intervals along the circumferential direction of the male joint, and balls are movably arranged in the axial grooves;
the axial groove is provided with an annular groove used for clamping the ball along the outer side wall.
Furthermore, the locking mechanism comprises a compression spring and two pipe clamps which are sleeved on the outer side wall of the male connector, and a spring buckle seat which is sleeved on the outer side wall of the male connector, wherein the compression spring and the pipe clamps are both positioned between the spring buckle seat and the male connector;
the elastic buckle seat always keeps the state that the annular convex end props against the ball under the action of the compression spring, so that the ball is clamped on the annular groove to finish the quick butt joint of the male joint and the female joint.
Furthermore, the outer side wall of the elastic buckle seat is provided with anti-skid grains.
Furthermore, the fluid director comprises a sleeve and a plurality of blades, wherein the sleeve is sleeved on the valve core main body in a sliding manner, and the blades are obliquely arranged and are arranged at equal intervals along the circumferential direction of the sleeve.
Furthermore, the inner walls of the male connector and the female connector are provided with threads which are respectively used for connecting the valve and the conveying pipe.
Furthermore, one end of the male connector and one end of the female connector, which are far away from each other, are both sleeved with hexagonal nuts.
The utility model has the advantages that:
firstly, the utility model aims at solving the problems that the existing quick connector is difficult to pull out and the high pressure in the pipe rushes out the conveying pipe with the quick connector at the moment of pulling out, when the male connector and the female connector are in a separated state, the male connector and the female connector are in a self-closing state under the action of the reset spring; when the male joint and the female joint are in a butt joint state, the valve core main body slides on the fluid director through the return spring to realize the communication of the male joint and the female joint, and fluid media are released by the cooperation of the fluid director and the valve core main body to release pressure, so that the conveying pipe with the female joint is safely and labor-saving when pulled out.
Furthermore, in the butt joint process of the male joint and the female joint, the balls are locked under the matching action of the annular convex end and the annular groove, so that the quick butt joint is realized, and the accidental separation of the male joint and the female joint is avoided; in the process of separating the male connector from the female connector, the annular groove and the annular convex end are sequentially separated from the ball, and the female connector is easily taken out under the impact action of the reset spring and the fluid medium, so that the quick separation is realized, and the device is safe and reliable.
Drawings
Fig. 1 is a schematic view of a butt structure of a female joint of a male joint of the present invention;
FIG. 2 is a sectional view of the structure of FIG. 1;
FIG. 3 is a schematic view of a separating structure of the female joint of the male joint of the present invention;
fig. 4 is a cross-sectional view of the structure of fig. 3 according to the present invention;
FIG. 5 is a schematic view of the connecting structure of the middle fluid director, the return spring and the valve core main body of the present invention;
in the figure, the position of the first and second end faces,
1. a male connector; 2. a female joint; 3. a track groove; 4. a fluid director; 5. a valve core main body; 6. a contact part; 7. a return spring; 8. a limiting part; 9. an axial slot; 10. a ball bearing; 11. a compression spring; 12. a pipe clamp; 13. a spring buckle seat; 14. an annular groove; 15. an annular raised end; 16. anti-skid lines; 17. a thread; 18. a hexagonal nut.
Detailed Description
In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.
As shown in fig. 1-5, the utility model comprises a male joint 1 and a female joint 2, wherein the inner walls of the male joint 1 and the female joint 2 are respectively provided with a thread 17 for connecting a valve and a delivery pipe; one end of keeping away from each other of male joint 1 and female joint 2 all is equipped with hexagon nut 18 by the cover, and the personnel of being convenient for assemble male joint 1 and female joint 2 respectively through the instrument.
Axial grooves 9 are formed in the joint of the male connector 1 and the female connector 2, a plurality of axial grooves 9 are arranged at equal intervals along the circumferential direction of the male connector 1, balls 10 are movably arranged in the axial grooves 9, and annular grooves 14 used for clamping the balls 10 are formed in the axial grooves 9 along the outer side wall; the female connector 2 is fixedly inserted in the male connector 1 through a locking mechanism; the locking mechanism comprises a compression spring 11, a pipe clamp 12 and a spring buckle base 13; the compression spring 11 and the pipe clamp 12 are sleeved on the outer side wall of the male connector 1, the elastic buckle seat 13 is sleeved on the outer side wall of the male connector 1, and the outer side wall of the elastic buckle seat 13 is provided with anti-slip lines 16, so that manual operation of personnel is facilitated, and slipping is prevented; the compression spring 11 and the pipe clamp 12 are both positioned between the elastic buckle base 13 and the male connector 1; the two pipe clamps 12 are respectively positioned at two ends of the elastic buckle seat 13, one of the pipe clamps is arranged on the step surface of the side wall of the male connector 1 and is used for providing a supporting force for the compression spring 11, and the other pipe clamp is embedded in the side wall of the male connector 1 and is used for limiting the sliding distance of the elastic buckle seat 13; an annular convex end 15 is arranged on the inner side wall of the elastic buckle seat 13, and the compression spring 11 is positioned between the annular convex end 15 and the pipe clamp 12 positioned on the step surface of the side wall of the male connector 1;
as shown in fig. 2, the snap seat 13 always keeps the state that the annular protruding end 15 abuts against the ball 10 under the action of the compression spring 11, and locks the ball 10 under the cooperation of the annular protruding end 15 and the annular groove 14, so as to realize the quick butt joint of the male joint 1 and the female joint 2.
The middle sections of the inner side walls of the male joint 1 and the female joint 2 are respectively provided with a track groove 3, the track grooves 3 are axially and rotatably provided with a fluid director 4, and a valve core main body 5 penetrates through the fluid director 4; the fluid director 4 comprises a sleeve and a plurality of blades, the sleeve is sleeved on the valve core main body 5 in a sliding manner, the blades are obliquely arranged and are equidistantly arranged along the circumferential direction of the sleeve, and the fluid director 4 plays a role in guiding and stabilizing the flow velocity of a fluid medium; one end of the valve core main body 5, which is far away from the fluid director 4, is provided with a contact part 6, a reset spring 7 is sleeved on the valve core main body 5, one end of the reset spring 7 is contacted with the fluid director 4, the other end of the reset spring is contacted with the contact part 6, and the reset spring 7 provides elastic acting force for the valve core main body 5 so as to play a role of buffering fluid media; spacing portion 8 has all been seted up to male joint 1 and 2 inside walls of female joint.
As shown in fig. 2, when the male connector 1 and the female connector 2 are in a butt joint state, the abutting portion 6 is away from the limiting portion 8 under the action of the return spring 7, so that the male connector 1 and the female connector 2 are communicated; as shown in fig. 4, when the male connector 1 and the female connector 2 are in a separated state, the interference part 6 is clamped with the limiting part 8 under the action of the return spring 7, so that the bidirectional non-return is realized.
The operation method comprises the following steps:
in the butt joint process of the male joint and the female joint, the elastic buckle seat 13 is manually slid, the annular groove 14 slides to clamp the ball 10, the elastic buckle seat 13 is loosened, the elastic buckle seat 13 is reset under the action of the compression spring 11, the annular convex end 15 corresponds to the ball 10, the annular convex end props against the ball to complete locking, and the ball 10 is locked under the matching action of the annular convex end 15 and the annular groove 14, so that the male joint 1 and the female joint 2 are quickly butted;
simultaneously, spacing portion 8 is kept away from to conflict portion 6 under the effect of reset spring 7 to realize that male joint 1 and female joint 2 communicate.
In the process of separating the male connector from the female connector, the elastic buckle seat 13 is manually slid to enable the annular convex end 15 to be far away from the ball 10, and the ball 10 is separated from the annular groove 14 and easily taken out under the impact action of the return spring 7 and a fluid medium of the female connector 2, so that the male connector 1 and the female connector 2 are quickly separated;
meanwhile, the abutting part 6 clamps the limiting part 8 under the action of the return spring 7 so as to realize bidirectional non-return.
To sum up, this quick-operation joint for gas cylinder valve simple to operate has improved quick-operation joint's performance parameter, and processing is simple and easy, connects convenient and fast.
The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.