JP3312751B2 - Controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a controller, and an object of the present invention is to prevent a fluid from flowing out of a pipe when the fluid is blocked even if the fluid is repeatedly blocked and distributed many times. An object of the present invention is to provide a controller capable of reliably shutting off the inside of the transmission pipe without leaking the fluid.

[0002]

2. Description of the Related Art As a conventional controller, there is, for example, one disclosed by the present inventors. This controller will be described with reference to FIG. The controller (A) has a tapered shape in which a communication pipe (B) is embedded in a block (C) and inserted into the block (C). An opening (D) is formed, and a sheet-shaped valve element (E) is disposed at the opening (D), and a peripheral portion of the valve element (E) extends along the surface of the block (C). The central portion (F) of the valve body (E) is fixed in a close contact state, and has a gradually decreasing diameter from the opening (D) toward the inside of the transmission pipe (B) in a state where the inside of the transmission pipe (B) is shut off. The base (G) of the central portion (F) of the valve body (E) is formed with an opening (D).
Opening (D) with liftable shape guard pieces (H) arranged at
The opening (D) is formed on the surface of the base (G) of the central portion (F) of the valve body (E).
An annular protruding ridge (I) is formed so as to closely adhere along the line, and a peripheral portion (J) of a central portion (F) of the valve body (E) can be folded and deformed, and the valve body (E) The tip (K) of the central portion (F) is connected to the tip of the shape-retaining piece (H), and the valve body (E) is turned up by lifting the shape-retaining piece (H) through the folding deformation of the surrounding part (J). ) Can be lifted so that the central portion (F) is opened inside the transmission pipe (B).

[0003]

The above-mentioned controller can reliably block the fluid at the controller without leaking the fluid from the inside of the transmission pipe to the outside of the opening. This is also an excellent invention in which the previously circulated fluid can be reliably removed, but has the following problems. The distal end of the central portion of the valve body is connected to the distal end of the shape-retaining piece via a set screw, and the valve body is lowered via the set screw to shut off the inside of the transmission pipe. During repeated blocking and distribution, the valve element cannot be stretched evenly, and the fluid may leak from the side with less tension.

In view of the above circumstances, the inventor of the present invention has found that even when a fluid is repeatedly blocked and distributed many times, the fluid leaks to the outflow side of the communication pipe when the fluid is blocked. The intense research was continued on a controller capable of reliably shutting off the inside of the transmission pipe without any trouble.

[0005]

That is, according to the present invention, a transmission pipe is buried in a state of being inserted into a block, and a tapered opening is formed in the surface of the block so as to be gradually reduced in diameter in the transmission pipe. A sheet-shaped valve body is disposed at the opening, and an annular ridge is vertically formed on a peripheral portion of the valve body.
The projections protrudes is fixed by clamping state concave annular provided in the block, Okudori the pipe through the opening in a state the middle portion of the valve body to block the inside Okudori pipe The base of the central portion of the valve body is formed in a tapered shape that closely adheres along the opening by a shape-retaining member provided in the opening, and the valve body is An annular ridge is formed on the base surface of the central part along the opening so as to be in close contact with the opening.The peripheral part of the central part of the valve element can be folded back and a piece is provided at the central part of the valve element. A controller, wherein the inserted shape-retaining member having a substantially inverted truncated cone shape is buried, and by lowering the shape-retaining member, the inside of the transmission pipe is cut off through the central portion of the valve body. , All of the above-mentioned drawbacks have been solved.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram showing a case where the inside of a transmission pipe is cut off in a controller according to an embodiment of the present invention, and FIG. 2 is an illustration showing a case where a transmission pipe is passed through in the controller shown in FIG. FIG.

First, the configuration of the controller (1) will be described.
(2) is a cylindrical transmission pipe. The transmission pipe (2) is buried in the block (3) so as to be inserted.
In the surface of the block (3), a tapered opening (4) is formed in the communication pipe (2) so as to be gradually reduced in diameter. A radius (5) is formed at the edge of the opening (4). A square sheet-shaped valve element (6) is disposed at the opening (4). The valve body (6) is a substrate (not shown) in which both surfaces of a base material in which an internal reinforcing cloth is embedded in a sandwich shape are coated on both surfaces. Tetron (registered trademark) or Nomex (registered trademark) is preferable as a material of the internal reinforcing cloth and the surface reinforcing cloth, and a silicone rubber or other elastic material such as a corrosion-resistant hard resin (such as tetrafluoroethylene) is used as a base material. Is preferred. The reason is that if a material other than these is used, the film becomes thicker and deformed. An annular ridge (7) is provided on the periphery of the valve element (6), and the block (3) is provided.
Are fixed in a state of being sandwiched by an annular recessed strip (8) provided in the first section. The central part (9) of the valve body (6) is the transmission pipe (2)
The pipe (2) from the opening (4) with the inside shut off
It is formed so as to gradually project inward toward the inside. The base portion (22) of the central portion (9) is held in a tapered shape by a liftable piece (10) disposed in the opening (4) to be in tight contact with the opening (4). Lifting of the piece (10) is performed manually by moving the knob (19) up and down, but is also performed by driving the piston upward by compressed air. The tip portion (11) of the central portion (9) is formed in a hemispherical shape that is in close contact with the inner peripheral surface (12) of the transmission pipe (2).
On the base (22) surface of the central part (9), a transmission pipe (2)
An annular ridge (13) is formed to protrude in a series along the line. A peripheral portion (14) of the central portion (9) is capable of being folded back. This folding of the peripheral portion (14) causes the peripheral portion (14) to be in a non-adhered state to the surface of the block (3), the opening (4), and the bridge (10), thereby maintaining the floating state of the peripheral portion (14). This is made possible by: In the center part (9) of the valve element (6), a shape retaining member (18) inserted into the bridge (10) is embedded. The shape retaining member (18) is formed in a substantially inverted truncated cone shape. By lifting the shape retaining member (18), the central portion (9) of the valve body (6) is turned through the return pipe (2) through the folding deformation of the peripheral portion (14).
It can be lifted to open the inside. In this controller (1), the inner peripheral surface (12) of the transmission pipe (2),
The inflow side (16) and the outflow side (17) of the transmission pipe (2) are hermetically sealed by the transverse ridges (15) which are successively adhered along the surface of the opening (4) and the block (3). It seals, and seals the return space (20) and the outside of the valve element (6) by the convex ridge (7) which is tightly fitted to the annular concave ridge (8) provided in the block (3). And seal it.

The configuration of the controller (1) according to one embodiment of the present invention is as described above. Next, the state of use will be described. When blocking the fluid (21) flowing through the inside of the communication pipe (2), the piston (19) is positioned at the lowered position as shown in FIG. The inside of the transmission pipe (2) is shut off at the central part (9) of the valve body (6). When the fluid (21) is allowed to flow through the communication pipe (2), the piston (19) is positioned at the raised position as shown in FIG. 2, and the valve (6) is moved via the shape retaining member (18).
With the central part (9) of the is raised, the inside of the transmission pipe (2) is opened.

As described above, since the shape retaining member (18) having a substantially inverted truncated cone shape is lowered to uniformly extend the entire central portion (9) of the valve body (6), it is repeated many times. Even if the inside of the communication pipe (2) is shut off or opened, the fluid (21) leaks to the outflow side (17) of the communication pipe (2) when the inside of the communication pipe (2) is shut off. Therefore, the fluid (21) can be reliably blocked at the controller (1) part without any trouble.

[0010]

As described in detail in the above, the present invention has a transmission pipe embedded in a block so as to be inserted into the block, and a tapered opening which is gradually reduced in diameter is formed in the surface of the block. A sheet-shaped valve body is disposed at this opening, and an annular ridge is vertically formed on a peripheral portion of the valve body.
The protruding ridge is fixed in the annular concave ridge provided on the block in a sandwiched state, and the central portion of the valve body is inserted into the transmission pipe from the opening in a state of blocking the inside of the transmission pipe. The base of the central portion of the valve body is shaped in a tapered shape that closely adheres along the opening with a shape-retaining member disposed in the opening. An annular ridge is formed to protrude from the base surface of the part along the opening, and the periphery of the central part of the valve body can be folded back and inserted into a piece in the central part of the valve body. The controller is characterized in that the worn shape-retaining member in the shape of a substantially inverted truncated cone is buried and the inside of the transmission pipe is cut off through the central portion of the valve body by lowering the shape-retaining member. Therefore, the following effects are obtained. Since the substantially inverted truncated cone-shaped shape-retaining member is lowered to uniformly extend the entire central portion of the valve body, even if the inside of the transmission pipe is repeatedly opened and closed many times, When the inside of the transmission pipe is shut off, the fluid does not leak to the outflow side of the transmission pipe, and the fluid can be reliably blocked at the controller.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing a case where the inside of a transmission pipe is blocked in a controller according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional front view showing a case where a transmission pipe in the controller shown in FIG. 1 is transmitted.

FIG. 3 is a vertical sectional front view showing a conventional controller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Controller 2 Transmission pipe 3 Block 4 Opening 6 Valve body 7 Projection 8 Depression 9 Central part 10 Piece 13 Projection 15 Projection 18 Shape retaining member 22 Base

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G05D 16/06 F16K 7/16

Claims (1)

(57) [Claims] 1. A transmission pipe is buried in a state of being inserted into a block, and a tapered opening is formed in the surface of the block so as to be gradually reduced in diameter in the transmission pipe. A ring-shaped valve body is provided, and an annular ridge is provided on the periphery of the valve body so as to protrude vertically, and the ridge is fixed in a state of being sandwiched by an annular groove provided on the block. The central portion of the valve body is formed so as to gradually project from the opening toward the inside of the communication pipe in a state of blocking the inside of the communication pipe, and the base of the center portion of the valve body is disposed in the opening. The shape-retaining member is shaped like a taper that closely adheres along the opening,
An annular ridge is formed on the base surface of the central portion of the valve body so as to protrude continuously along the opening along the opening. The peripheral portion of the central portion of the valve body can be folded back and the central portion of the valve body can be deformed. The shape retaining member having a substantially inverted truncated cone shape inserted in the bridge is embedded, and by lowering the shape retaining member, the inside of the transmission pipe is shut off through the central portion of the valve body. And the controller.