JP2000002361A - Valve with push-turn mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a valve equipped with a push-turn mechanism structured simply, which allows simple shape of components to decrease in the number of components, and can achieve cost reduction. SOLUTION: A valve 1 with a push-turn mechanism is composed of a body 7 having a recess, a valve element 9 capable of rotating within the recess, a handle 3 mounted rotatably at the end of the recess but not rotatable relative to the valve element 9 and movable in the depth direction of the recess (incoming and outgoing), a spring 6 to energize the handle in the outgoing direction, and a lock pin 5 which is installed between the handle and recess and subjected to center alignment with the handle. The recess in the body is provided with a lock hole 7e to hinder the lock pin 5 from rotating when the handle is in the out-position and a circumferential groove 7g to admit rotation of the lock pin 5 when the handle is in the in-position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve having a push-turn mechanism suitable for use in opening and closing a pipeline of gas equipment in a house. In particular, the present invention relates to a valve with a push-and-turn mechanism that has a simple structure of a push-and-turn mechanism, has a simplified shape of parts, reduces the number of parts, and can be reduced in cost.

[0002]

2. Description of the Related Art The prior art will be described using a gas stopper as an example. In the following description of each figure, the handle is referred to as up, the body is referred to as down, and the direction perpendicular to the handle is referred to as left or right.
Or called before and after. The depth direction (in / out direction) in the claims corresponds to the vertical direction in each drawing. FIG. 7 is a sectional view showing the internal structure of a conventional gas stopper. FIG. 3B is an exploded perspective view showing a component configuration of the conventional gas stopper shown in FIG. This conventional gas tap has a flat head screw 102,
Handle 103, C-shaped retaining ring 111, stopper 113,
Drive shaft 115, coil spring 106, valve body 10
9, consisting of eight parts of the body 107.

[0003] The countersunk screw 102 connects the handle 103 and the drive shaft 115. Handle 1
Reference numeral 03 denotes a gas stopper 101 that is opened and closed by pushing it by hand. The C-shaped retaining ring 111 enters the groove in the body 107 and presses the stopper 113 from above. The stopper 113 has a locking hole 113a for stopping the drive shaft 115 from rotating when the drive shaft 115 is positioned on the upper side. The drive shaft 115 connects the handle 103 and the valve element 109 so that they cannot rotate and the vertical distance is variable. The coil spring 106 urges the drive shaft 115 upward. The valve element 109 is connected to the body 10
7 and rotatably housed therein, and opens and closes the gas pipeline in accordance with the position of the hole 109c. The body 107 accommodates the valve element 109 and the like, and has an appropriate gas pipeline.

When the gas plug 101 is opened, the handle 103 is pushed downward, the drive shaft 115 is moved downward by overcoming the urging force of the coil spring 106, and then the handle 103 is turned. Then, the drive shaft 115 that has come off from the locking hole 113a of the stopper 113 rotates,
Therefore, the valve element 109 also rotates. Thereby, the body 107
And the hole 109c of the valve element 109 is aligned to open the pipe. On the other hand, when the gas stopper 101 is closed and the hand is released from the handle 103, the drive shaft 115
The shoulder 115a enters the stopper hole 113a of the stopper. Therefore, the drive shaft 115, the valve body, and the handle 103 cannot rotate. For this reason, even if the power is applied to the handle 103 carelessly, the gas stopper 101 is not opened and the handle 103 is safe.

[0005]

The above-mentioned gas stopper has such a characteristic that it can be opened only by a user's intentional pushing and opening operation, and is excellent in that unexpected gas release can be prevented. . However, there are many parts of relatively complicated materials having relatively complicated shapes, and the manufacturing cost is high.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a simple structure of a pushing mechanism, a simple shape of parts, and a cost reduction by reducing the number of parts. It is an object to provide a valve with a turning mechanism.

[0007]

In order to solve the above-mentioned problems, a valve with a pushing mechanism according to the present invention comprises: a body having a concave portion; a valve body rotatable in the concave portion; A handle that is rotatably mounted, cannot rotate with the valve body, and is movable in the depth (in / out direction) of the recess; a spring that biases the handle in the outgoing direction; A locking member that performs
A locking portion for preventing rotation of the lock member when the handle is in the extended position and a cavity for allowing rotation of the lock member when the handle is in the in position are formed in the concave portion of the body. It is characterized by having.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing an internal structure when opening and closing a gas stopper according to an embodiment of the present invention. (A) shows the time of closure, and (B) shows the time of opening. FIG. 2 is a schematic plan view showing the movement of the lock pin. (A) shows the time of closure, and (B) shows the time of opening. FIG. 3A is an exploded perspective view showing a component configuration of the gas stopper of FIG. Gas tap 1 has flat head screw 2, handle 3,
It is composed of seven parts, a seal 4, a lock pin 5, a coil spring 6, a valve body 9, and a body 7. FIG. 4, FIG. 5, and FIG.
FIG. 3 is a view showing details of a handle, a body, and a valve body of the gas stopper of FIG.

The handle 3 is made of resin such as ABS, and is used to open and close the gas stopper by pushing it around by hand, and has a handle portion 3a which is picked up by hand at an upper portion. Handle part 3
A screw hole 3b is vertically penetrated in the center of a, and a countersunk screw 2 is screwed into the hole. The countersunk screw 2 is used to position the center of the lock pin 5 as described later.

The lower portion of the handle 3 is formed with an inner projection 3c extending downward at the center and a skirt-shaped outer edge 3d extending downward from the outer periphery. An annular groove 3h opened downward is formed between the inner protrusion 3c and the outer edge 3d. Inner protrusion 3c
Is provided with a through hole 3i for holding a lock pin 5 penetrating in the lateral direction. The length of the through hole 3i is shorter than the length of the lock pin 5, and both ends of the lock pin 5 project from the through hole 3i. An insertion hole 3g for the lock pin 5 is also formed in the right outer edge 3d coaxial with the through hole 3i.

The inside of the lower end 3k of the inner projection 3c is a recess recessed from below, and the recess forms an engagement hole 3m of the valve body 9. The planar shape of the engagement hole 3m has a shape in which the center is circular and a convex portion is formed on the left and right diagonals, and the convex portion is a projection 9a of the valve body 9 described later (see FIG. 6). The valve body 9 is fitted to the handle 3 so as to be slidable in the vertical direction and non-rotatable. Here, the longitudinal axis of the engaging hole 3m is in a positional relationship parallel to the through hole 3i, and the handle 3, the lock pin 5, and the valve body 9 rotate synchronously. The axis of the handle 3a in the length direction of the handle 3 is parallel to the axis of the lock pin through-hole 3i, and the positional relationship of each part can be known from the direction of the handle 3a.

As shown in FIG. 4C, a protrusion 3p is formed on the lower surface of the handle 3 so as to partially fill a groove 3h between the inner protrusion 3c and the outer edge 3d. . When the handle 3 is turned, the convex portion 3p is moved to a body 7 described later.
The locking pin 5 is positioned by contacting the locking surface 7c. The protrusion 3p is disposed on a different axis from the axis of the through hole 3i of the lock pin 5. Specifically, the through hole 3
It is located at 45 ° with respect to the through axis of i.

The valve body 9 is made of a copper alloy C3604BD or the like, and as shown in FIG. Further, two protrusions 9a are formed on the left and right on the upper part of the valve body 9. The protrusion 9a is an inner protrusion 3c of the handle 3.
3m is slidably fitted up and down. At the center of the valve body 9, a pipe 9c penetrating in the lateral direction is opened. The penetration axis of the pipe 9c and the axis of the projections 9a are arranged in parallel. This pipe 9c is connected to the gas pipe 10 via a pipe 7m of the body 7, as shown in FIG. The valve body 9 is driven by the handle 3 to rotate in the inner hole 7 i of the body 7 to open and close the gas stopper 1.

The body 7 is made of a copper alloy C3771BF or B
D, etc., and is a tubular member penetrating vertically. The upper end 7a is a groove 3 between the inner protrusion 3c and the outer edge 3d of the handle 3.
h. A step 7k is cut in the upper surface of the body 7. As shown in FIG. 2, the stepped portion 7k is cut along the outer periphery of the body 7 in an arc shape with respect to the vertical center axis. A convex portion 3p formed on the lower surface of the handle is located at the step 7k, and the handle 3 rotates within an angle of 90 °. The side surfaces of the convex portion 3p abut on both side surfaces of the concave portion 7k,
Together with the rotation of the handle 3, the locking surface 7c determines the opening and closing of the gas stopper. A lock hole 7e for the lock pin 5 penetrating in the lateral direction is formed below the step 7k. A circumferential groove 7g is formed in an annular shape on the inner surface below the lock hole 7e. The inner diameter of the circumferential groove 7g is substantially equal to the length of the lock pin 5, and the lock pin 5 rotates along the groove 7g when the stopper is opened.

The lower part of the inner surface of the body 7 is a lower inner hole 7.
i, and the lower tapered portion of the valve element 9 is fitted. Further, a pipe 7m penetrating in the lateral direction is opened at a lower portion. When the pipe is opened, the pipe 7m is arranged with the passage 9c of the gas pipe 10 together with the pipe 9c of the valve body 9 to pass gas. Here, the penetration axis of the pipe 7m is parallel to the horizontal axis passing through the center of the stepped portion 7k and the vertical center of the body 7, and the lock hole 7 of the lock pin 5 is provided.
It intersects at right angles with the axis of e.

The lock pin 5 is made of a copper alloy C3604BD or the like, and as shown in FIGS. 1 and 2, is an elongated round bar as a whole, and includes a left and right large-diameter portion 5a and a central small-diameter portion 5c. The lock pin 5 is inserted into the through hole 3 i of the handle 3, and the small diameter portion 5 c at the center is located at the lower end of the flat head screw 2 passing through the center of the handle 3. The lower end of the flat head screw 2 is in contact with the small diameter portion 5c of the lock pin 5 and is sandwiched between the left and right large diameter portions 5a. The lock pin 5 is held at the center of the handle 3.

The coil spring 6 is made of SUS304-WPB or the like. As shown in FIG. 1, the coil spring 6 is provided between the spring holding recess 9b between the projections 9a of the valve body 9 and the lower surface of the inner projection 3c of the handle 3. It is arranged without permission. Therefore, the coil spring 6 urges the handle 3 upward with respect to the valve body 9.

The movement of the lock pin 5 and the like at the time of opening and closing the gas stopper will be described with reference to FIGS. FIG. 2A is a partial plan view showing the positional relationship among the handle 3, lock pin 5, valve body 9 and body 7 when the gas stopper is closed. FIG.
(B) shows when the gas plug is opened. FIG. 2 is a schematic diagram, and a part of cross-sectional hatching is omitted.

As shown in FIG. 1A, when the plug is closed, the lock pin 5 disposed in the through hole 3i of the handle 3 receives the upward bias of the coil spring 6 and protrudes from the through hole 3i. Both ends are fitted into the lock holes 7e of the body 7.
The hole 7e is simply a round hole, and the upper side surface of the lock pin 5 is in contact with the side wall of the lock hole 7e. Therefore, the lock pin 5 cannot rotate in this state, and accordingly, the handle 3 cannot rotate. The pipe 9c of the valve body 9 is
It is parallel to the axial direction of the lock pin 5, intersects at right angles with the passage hole of the gas pipeline 10 (see FIG. 2A), and
Is closed. Further, the convex portion 3p of the handle 3 is
It is in contact with the locking surface 7c of the step 7k of the body 7. At this time, even if the handle 3 is inadvertently rotated, it does not move because both ends of the lock pin 5 are locked in the lock holes 7e of the body 7 as described above.

At the time of opening, first, the handle 3 is pushed downward. The lock pin 5 is pressed downward against the coil spring 6 while maintaining the center position with respect to the handle 3, disengages from the lock hole 7 e of the body 7, and moves to the circumferential groove 7 g.
Next, when the handle 3 is turned while being pressed, the circumferential groove 7g is obtained.
Is cut over the entire inner surface of the body 7, so that the lock pin 5 rotates along with the circumferential groove 7g as the handle 3 rotates. When the handle 3 rotates, the convex portion 3p is
Is locked by contacting the locking surface 7c 'of the step 7k. At this time, the pipe 9c of the valve body 9 is
And is coaxial with the passage hole of the gas line 10,
It is opened.

When closing the handle, the handle 3 is turned in the opposite direction by 90 ° until the projection 3p comes into contact with the locking surface 7c of the step 7k of the body 7. When the lock pin 5 reaches this position, the lock pin 5 is located immediately below the lock hole 7e, receives the upward bias of the coil spring 6, is pushed upward together with the handle 3, and both ends of the lock pin 5 are locked. It is locked in the hole 7e.

Next, a method of assembling the gas stopper shown in FIG. 1 will be described. First, the valve 9 is inserted into the inner hole 7i of the body 7, and the position of the pipe 7m of the body 7 and the position of the pipe 9c of the valve 9 are aligned. The lower tapered surface of the valve body 9 is
Moored in contact with the tapered surface. Next, the coil spring 6 is arranged in the spring holding concave portion 9b on the upper surface of the valve body 9, the upper end of the coil spring 6 is brought into contact with the center of the lower surface of the inner protrusion 3c of the handle 3, and the handle 3 is pushed down from above. At this time, the valve element 9
Of the handle 3 and the protrusion 3p of the handle 3 fits into the recess 7k of the body 7.

Further, while pushing down the handle 3, the lock pin insertion hole 3g of the handle 3 and the lock hole 7
e is aligned, and the lock pin 5 is inserted through the insertion hole 3g. The lock pin 5 enters the lock hole 7e of the body 7 from the insertion hole 3g, further passes through the through hole 3i of the handle 3, and reaches the lock hole 7e on the opposite side of the body 7 again.
The flat head screw 2 is screwed into the screw hole 3 b of the handle 3, and the lower end is positioned so as to contact the small diameter portion 5 c at the center of the lock pin 5. Finally, lock pin insertion hole 3 of handle 3
A seal 4 is attached to g to prevent the lock pin 5 from coming off.

According to this embodiment, the operation of opening and closing the gas plug can be performed by the push-turn mechanism having the same function as the conventional one, and at the same time, careless rotation of the handle at the time of closing can be reliably prevented. Furthermore, the number of parts is seven, which is less than eight in the conventional method. Further, instead of the conventionally used parts such as the C-shaped snap ring, the stopper, and the drive shaft, parts having a relatively simple shape are used. Also,
The cost can be further reduced by using an inexpensive resin instead of the aluminum die-cast handle.

[0023]

As is apparent from the above description, according to the present invention, the push mechanism which can simplify the structure of the pushing mechanism, simplify the shape of the parts, reduce the number of parts and reduce the cost. A valve with a turning mechanism can be provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an internal structure when opening and closing a gas stopper according to an embodiment of the present invention. (A) shows the time of closure, and (B) shows the time of opening.

FIG. 2 is a schematic plan view showing the movement of a lock pin. (A) shows the time of closure, and (B) shows the time of opening.

FIG. 3A is an exploded perspective view showing a component configuration of the gas stopper shown in FIG. FIG. 3B is an exploded perspective view showing a component configuration of the gas stopper shown in FIG.

FIG. 4 is a view showing details of a handle of the gas stopper shown in FIG. 1; (A) is a plan view, (B) is a front view, and (C) is a bottom view.

FIG. 5 is a view showing details of a body of the gas stopper of FIG. 1;
(A) is a front view, (B) is a partial cross-sectional view of a side surface.

FIG. 6 is a view showing details of a valve body of the gas stopper of FIG. 1;
(A) is a front view, (B) is a side view.

FIG. 7 is a sectional view showing the internal structure of a conventional gas stopper.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Gas stopper 2 Countersunk screw 3 Handle 3a Handle 3b Screw hole 3c Inner projection 3d Outer edge 3g Insertion hole 3h Groove 3i Through hole 3k Lower end 3m Engagement hole 3p Convex part 4 Seal 5 Lock pin 5a Large diameter part 5c Small diameter part 6 Coil spring 7 Body 7a Upper end part 7c Locking surface 7e Lock hole 7g Circular groove 7i Inner hole 7k Step 7m Pipe 9 Valve 9a Projection 9b Spring holding recess 9c Pipe 10 Gas pipe 102 Plate Small screw 103 Handle 106 Coil spring 107 Body 109 Valve element 109c Hole 111 C-shaped retaining ring 113 Stopper 113a Locking hole 115 Drive shaft 115a Shoulder

Claims (3)

[Claims] 1. A body having a concave portion, a valve body rotatable in the concave portion, and a rotatably mounted end of the concave portion, the valve body being non-rotatable and a depth direction of the concave portion. A handle movable in and out (in and out direction), a spring for urging the handle in the outgoing direction, and a lock member interposed between the handle and the body concave portion; A locking portion for preventing rotation of the lock member at a certain time, and a cavity for allowing the rotation of the lock member when the handle is in the in-position is formed, . 2. The pusher according to claim 1, wherein the lock member is a pin inserted into the handle and the body from a lateral side of the concave portion, and further includes positioning means such as a screw for the pin with respect to the handle. Valve with turning mechanism. 3. Both ends of the lock member are positioned so as to protrude from an inner protrusion formed in the handle, and a lock hole in which the both ends of the lock member are fitted is provided in the body recess at a position where the handle comes out; Further, the lock hole is also used as a hole through which a lock member is inserted into the body and the handle. When the lock member rotates around a circumferential groove formed inside the body and reaches a position where the handle is extended, the lock member is extended by the spring. The valve with a push-turn mechanism according to claim 1 or 2, wherein the handle is locked in the body by being urged in the direction and by fitting both ends into the lock holes.