JPH05223189A - Joint valve - Google Patents

Abstract

PURPOSE:To open and close a channel with one operation by providing a slider pipe which has a valve mouth for opening and closing the channel and is energized by a coil spring, on a primary member, and a valve element and a lock/ unlock mechanism which is energized by a coil spring, on a secondary member. CONSTITUTION:A joint valve comprises a primary member 1 having a tube insertion part 3 and being connected to a supply pipe, and a secondary member 2 having a tube insertion part 15 and being connected to a receiving pipe. A slider pipe 10 is slidably inserted in a fitting 7 of the primary member 1 and energized forward by a coil spring 11. A valve element 20 which is abutted against a channel stage in a threaded engagement part 16 by a coil spring 24 is fitted to the secondary member 2, and a lock plate 27 bent its head in L shape is slidably attached to a pair of guide grooves 26 and energized upward by a spring coil 28. The lock plate 27 is freely locked and retained by a lock pin 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a joint valve, and in particular, when a fluid such as liquid or gas is sent from a supply side to a reception side, it is mounted between pipes serving as flow passages to obtain a flow in a connected state and separate it. Therefore, the present invention relates to a novel joint valve in which the distribution is instantly stopped and the operation can be performed with one touch.

[0002]

BACKGROUND OF THE INVENTION Generally, in order to circulate and transfer liquids such as water, chemical liquids, chemical liquids, and gases such as fuel gas and powder mixture, a supply part and a reception part are connected by a distribution pipe, It is forcibly distributed by a fluid machine such as a pump. A valve device by a mechanic is usually incorporated in the pipe in this distribution mechanism, and the valve device is operated artificially or electromagnetically to open and close the flow path.

[0003]

However, in the conventional valve mechanism, although an instantaneous valve mechanism can be obtained by using a diaphragm or a spring, a gap is generated due to the operating direction and the valve seat structure of the valve mechanism. It is difficult to obtain the state, and a leak is inevitably generated.Because of the presence of the valve element in the flow path even during distribution, phenomena such as chattering occur, which shortens the product life as a valve device. It was

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention has been made by paying attention to the problems as the above-mentioned conventional valve device. In the closed state, that is, the flow path cutoff for stopping the flow is completed, and the flow due to the leakage is prevented. To provide a new joint valve that can be eliminated altogether, can be easily shut off and distributed by one-touch operation, and can be kept in good quality with little product damage and long product life. Has a purpose.

[0005]

To achieve this object, a joint valve according to the present invention comprises a primary side member connected to a fluid supply pipe and a secondary side member connected to a receiving pipe. The primary member is urged forward by a coil spring, and the slider member is provided rearwardly with a slider port having a valve opening that opens and closes a flow path, and the secondary member is urged by a coil spring. A valve body, a lock of the primary member, and a lock release mechanism thereof.

[0006]

With the above-described structure, the primary side member is fitted to the secondary side member during distribution, the slider tube is pressed, and the valve member of the secondary side member is also pressed and opened, but the distribution is stopped. Sometimes the primary side member and the secondary side member are completely separated, and the valve is closed at the same time, so there is no inflow due to fluid leakage, and the operation is a one-touch operation of the primary side member and the secondary side member. It can be obtained by connecting and disconnecting.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the drawings. FIG. 1 is a perspective view of a joint valve of the present invention in a separated state, FIG. 2 is an exploded perspective view of the same, FIG. 3 is a sectional view of the same joint state, and FIG. 4 is a sectional view of the same joint state.

In these figures, 1 is a primary member connected and fixed to a fluid supply pipe, and 2 is a secondary member connected and fixed to a receiving pipe. The primary side member 1 has an outer casing formed of plastic, and has an insertion portion 3 for inserting into a thin tube formed at a rear end thereof. A screw portion 5 to which a fastening nut 4 is screwed after the insertion portion 3 is formed. Is formed, and a hexagonal stopper portion 6 also serving as a knob portion is formed following the screw portion 5.

A stopper portion 6 having a large diameter is formed, and subsequently a fitting portion 7 into the secondary member 2 is formed. A rubber ring 8 for preventing fluid leakage is located near the tip of the fitting portion 7. It is fitted in the mounting annular groove. In addition, a locking annular groove 9 is formed near the base end of the fitting portion 7 so as to be engaged with a locking mechanism described later to prevent the locking mechanism from coming off.

Further, a slider tube 10 is slidably inserted into the fitting portion 7 of the primary member 1 with its tip protruding. This slider tube 10 is provided with a contact portion 12 of a coil spring 11 at the rear end thereof, and the coil spring 11 is elastically provided between the contact portion 12 and a step portion 13 formed in the stopper portion 6 and is always a slider. The tube 10 is biased forward. Further, a plurality of slits 14, 14, ... Are formed in the slider tube 10 toward the rear end, and the slits 14, 14, ... Slide the slider tube 10 into the fitting portion 7 against the biasing force of the coil spring 11. It will open the channel when moved.

On the other hand, the secondary member 2 is made of plastic and has an insertion portion 15 for inserting into a thin tube at the tip thereof, and subsequently, a screwing portion 16 for an instrument is formed on the outer surface thereof. The screwing portion 16 is provided with a fastening nut 17. A large-diameter fitting portion 18 is continuously formed in the screwing portion 16, and a hole 19 into which the fitting portion 7 of the primary member 1 is fitted is provided on the rear surface of the fitting portion 18.

A valve body 20 is slidably incorporated in the secondary member 2. The valve body 20 has a valve plate 21 on the front end side and a cross-shaped pressure portion on the rear end. 22, a plurality of support rods 23 are provided between the valve plate 21 and the pressure plate 22, and the gap between the support rods 23 is a part of the flow path. A coil spring 2 is provided around the valve body 20.
4 is installed, and its coil spring 24 has an abutting plate 22.
The valve plate 20 is elastically provided between the inner wall of the threaded portion 16 and the front surface of the threaded portion 16, and the valve plate 21 is always biased rearward to move the valve plate 21 into the flow path step portion 25 in the threaded portion 16.
Abutting against.

A pair of guide grooves 26, 26 are integrally formed on both sides of the hole 19 of the secondary member 2 so as to face each other, and the head is bent in the guide grooves 26, 26 to form an L-shape. A lock plate 27 having a shape is slidably attached to both edges thereof. A hole 29 for supporting the coil spring 28 is formed on the side surface of the fitting portion 18 of the secondary member 2, and the coil spring 28 has a bottom of the hole 29 and the lock plate 2.
It is elastically mounted between the heads 27a of the No. 7 and always urges the lock plate 27 upward. Reference numeral 30 denotes a protrusion for preventing the positional deviation of the coil spring 28 formed in the hole 29.

Further, the lock plate 27 has a hole 19 in it.
A through hole 31 that coincides with the through hole 31 is formed, and an engaging throttle hole 32 for the lock plate 27 is formed continuously with the through hole 31.

Reference numeral 33 in the drawing denotes a lock pin, and the lock pin 33 is provided in a hole 34 formed in the opening end surface of the hole 19 of the secondary member 2 by a coil spring 35, which is always biased in the protruding direction. The large diameter portion 36 is formed at the rear end to prevent the rear end from coming off from the hole 34. When the lock plate 27 is lowered against the biasing force of the coil spring 28 after the large-diameter portion 36 is formed with a gently curved concave groove 37, the lock plate 27 engages with the inner edge of the throttle hole 32 to lock the lock plate 27. It is designed to lock the return of 27. The lock is released by pushing the lock pin 33 back against the biasing force of the coil spring 35, the narrow diameter portion 38 of the lock pin 33 engages with the lower end of the throttle hole 32, and the lock plate 27 is stopped. It is prevented from coming off.

The joint valve according to this embodiment is constructed as described above, and the primary side member 1 and the secondary side member 2 are separated from each other and their flow paths are closed. Further, in this separated state, the lock plate 27 has the coil spring 28.
Is lowered against the urging force of the lock pin 33,
And the aperture hole 32 and the aperture 19 are engaged with each other.
Are the diameters that communicate with each other.

From this separated state, the hole 19 of the secondary member 2
When the fitting portion 7 of the primary side member 1 is fitted into, the tip of the slider tube 10 protruding from the fitting portion 7 presses the pressing plate 22 of the valve body 20, contracts the coil spring 24, and the valve plate 21 is stepped. Separate from 25 and open the flow path. At the same time, the slider tube 10 is also pushed back by the pressure plate 22 so that the coil spring 11 is contracted, the contact portion 12 is released, and the flow path is opened, so that the supply side and the reception side where this joint valve is interposed communicate with each other. Will be done.

Simultaneously with the communication of the above-mentioned flow paths, the lock pin 3 in which the front wall of the stopper portion 6 of the primary member 1 projects
3 is pressed against the biasing force of the coil spring 35, the lock engagement between the lock pin 33 and the lock plate 27 through the throttle hole 32 is released, and the lock plate 27 is released from the coil spring 28.
It is pushed upward by the urging force of. Due to this rise of the lock plate 27, the inner edge of the through hole 31 of the lock plate 27 engages with the locking annular portion 9 of the fitting portion 7 of the primary member 1, and becomes a locked state at the time of connection, and mutual withdrawal is impossible.

When the head 27a of the lock plate 27 is pushed against the biasing force of the coil spring 28 in the above-mentioned connected state of the primary member 1 and the secondary member 2, the lock plate 27 descends. Then, the engagement between the through hole 31 and the locking annular groove 9 is released, and then the throttle hole 32 and the concave groove 37 of the lock pin 33.
The lock pin 33 pushes the front wall of the stopper portion 6 of the primary member 1 by the urging force of the coil spring 35, and at the same time, the pressing plate 22 of the valve body 20 is also urged by the coil spring 24. Since the tip of the slider tube 10 is pushed back, the primary member 1 is instantly brought into a separated state from the secondary member 2 and the flow path is also blocked.

[0020]

The joint valve according to the present invention is constructed and used as described above. Therefore, the passage and disconnection of the flow path can be reliably performed by a one-touch operation using a spring, and the disconnection of the primary side member and the secondary side member is particularly performed even if there is some leakage in the valve portion. It can be complete. In addition, since the mechanism does not use a rotational motion and is a straight motion, there is little damage, wear due to fluid is reduced, the product life is extended, and it can be applied to a wide range regardless of the type of fluid. Is becoming

[Brief description of drawings]

FIG. 1 is a perspective view of a joint valve according to the present invention in a separated state.

FIG. 2 is an exploded perspective view.

FIG. 3 is a cross-sectional view showing a state in which the channels are connected to communicate with each other.

FIG. 4 is a cross-sectional view showing a state in which the channel is released and the flow path is closed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Primary side member 2 Secondary side member 3 Insertion part 6 Stopper part 7 Fitting part 8 Rubber ring 9 Locking annular groove 10 Slider tube 11 Coil spring 12 Abutment part 14 Slit 15 Insert part 18 Fitting part 19 Hole 20 Valve body 21 valve plate 22 pressure portion 24 coil spring 26 guide groove 27 lock plate 28 coil spring 29 hole 31 through hole 32 throttle hole 33 lock pin 35 coil spring 37 concave groove 38 small diameter portion

Claims (2)

[Claims] 1. A primary side member connected to a fluid supply pipe and a secondary side member connected to a receiving pipe, wherein the primary side member is biased forward by a coil spring and rearwardly, A slider tube having a valve port that slides to open and close the flow path is provided, and a valve member biased by a coil spring is provided in the secondary member, and a lock of the primary member and a lock release mechanism thereof. A joint valve characterized by that. 2. The secondary member locking and unlocking mechanism is an L-shaped member biased outward by a coil spring attached to a side surface, and a diaphragm formed at the tip side of the L-shaped member. It consists of a hole and a lock pin urged by a coil spring that is engaged at the inner edge of the throttle hole, and the lock pin is pressed at its open end and disengaged when the primary member is fitted. The joint valve according to claim 1, wherein: