JPH0135021Y2 - - Google Patents

Description

[Detailed explanation of the idea]

(Related Industrial Field) The present invention relates to a pipe joint that can be attached to, for example, a water supply port for mold cooling water and allows the flow rate to be confirmed. (Prior art) For example, for items such as molds that are cooled by supplying cooling water, the cooling water that is supplied through one main supply pipe is distributed and supplied to multiple locations through branch pipes. However, the flow rate of cooling water must always be detectable. As a method to meet such demands, a manifold equipped with a valve and one flow meter or pressure gauge is connected to the main water supply pipe, and the other ends of multiple hoses connected to the manifold are connected to the required locations. It was connected to. In this case, not only is the manifold located far away from the molding machine or casting machine, making it impossible to check the flow rate of the cooling water at any time, but also because the conventional structure required flow rate adjustment in one place.
Each part of the mold with different temperature conditions had to be cooled under the same conditions, which caused some parts to be insufficiently cooled. (Problem to be solved by the invention) In view of the fact that the above conventional technology could not adequately manage the flow rate of cooling water, it is possible to check the flow rate for each water inlet and easily adjust the flow rate. This is what we are trying to do. (Devised solution) A pipe joint that has an appropriate connection part such as a female or male thread or a plug on the end of the body and the adapter, and the body with one connection part has a connection part provided at the axial center of the body. In addition to providing a pot-shaped valve to open and close the liquid passage hole,
Facing the adapter having the other connection part, the base part has a liquid passage hole continuous with the liquid passage hole passing through the outer circumferential surface part, and the extension part having a tapered shaft part at the tip part, The tip of the tapered shaft part is fitted into the shaft center of the other connection part of the adapter, and the transparent outer tube is further sandwiched between the main body and the adapter so that the tapered shaft part can be seen through. is integrally provided in a liquid-tight state, and a ring-shaped indicator is fitted onto the outer periphery of the tapered shaft part so as to be movable in the axial direction by biasing it toward the larger diameter side of the same shaft with a compression spring, thereby controlling the flow rate. This is what made the challenge possible. (Embodiment of the invention) Figures 1 and 2 show a first embodiment of the invention, in which a main body 1 consists of a hexagonal head 1a and a tapered extension 1b integrated therewith. The hexagonal head 1a is a Kotuku-shaped valve (hereinafter referred to as "Kotuku") 2 for adjusting the flow rate.
have. Kotoku 2 is the hexagonal head 1a of main body 1
It is rotatably attached to a hole provided through the center of the tube, and a liquid passage hole 3 is bored in the center thereof (FIG. 2). 4 is a stop spring to prevent Kotoku 2 from coming out,
5 is an O-ring fitted into the groove provided in Kotoku 2,
This prevents water from leaking from the pot 2 to the outside of the main body 1. Reference numeral 6 denotes a female connection screw provided on the hexagonal head 1a. 7 is a scale that displays the rotation angle of the knob 2, that is, the amount of adjustment of the flow rate. 8 is an outer cylinder molded from transparent resin such as polycarbonate resin, and 9 is an adapter fixed to the tapered extension 1b of the main body 1 with a screw 9'. ring 10,1
The outer cylinder 8 is removably held between the outer cylinders 8 and 8. The outer cylinder 8 is provided with several scale grooves 11 in the circumferential direction on its outer circumferential surface. It is becoming more and more like this. The tapered extension part 1b of the main body 1 consists of a conical part 1c and a cylindrical part 1d, and the adapter 9 is fixed by screwing the screw 9' into a female thread formed at the tip of the cylindrical part 1d. Further, the inner diameter of the indicator 12 loosely fitted into the tapered extension part 1b is set to match the maximum diameter of the tapered extension part 1b. 14 is the conical part 1
c is a liquid passage hole that connects the central liquid passage hole 13 of the hexagonal head 1a and the liquid passage space 15 between the outer cylinder 8 and the conical part 1c. By narrowing the pot 2, the amount of fluid flowing toward the liquid passage space 15 is reduced. Reference numeral 16 denotes a compression spring that presses the indicator 12 in the space 15 in the direction of the maximum diameter of the conical portion 1c of the tapered extension portion 1b.

[Table] (Operation of the invention) The operation of the invention will be explained based on the embodiment shown in FIGS. 1 and 2. In FIG. 1, when fluid is supplied from the direction of arrow
9 through which the fluid flows. At this time, the indicator 12 is pushed to the right in the figure against the elastic force of the compression spring 16, but the movement of the indicator 12 allows the flow rate to be confirmed by the scale groove 11 provided in the transparent outer cylinder 8. When the pot 2 is gradually opened from the state shown in FIGS. 1 and 2, the amount of fluid passing through the liquid passage hole 13 gradually increases, and this state can be seen through the transparent outer cylinder 8, so it can be seen from the outside. Adjust the pot while checking the flow rate. (Effects of the invention) Since the present invention is equipped with a flow rate adjustment valve and a flow rate confirmation window, for example, the flow rate can be adjusted using a kettle while checking the flow of cooling water. Moreover, since the pipe fitting itself is equipped with a flow rate adjustment knob and a flow rate confirmation window, if the pipe fitting of this invention is adopted, the valve can be adjusted to supply the required flow rate of fluid at each location where the pipe fitting is set. However, since it can be supplied accurately and has an extremely simple structure, it can be implemented at low cost and is extremely practical. In addition, the condition of the liquid passage hole can be checked through the flow rate confirmation window, so even if, for example, water scale has adhered to the inner wall surface, it can be confirmed immediately. The transparent outer cylinder can be removed to clean dirt. Therefore, according to the present invention, even if a situation occurs where the indicator is no longer visible, it is not only possible to know the flow rate by the opening of the pot, but also to check the flow of fluid at any time by washing the transparent outer cylinder. It can be visually checked and the supply of cooling water etc. can be adjusted safely and reliably.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional side view of the upper half of the first embodiment of the present invention. FIG. 2 is a sectional view taken along the - arrow in FIG. 1. FIG. 3 is a detailed view of the section shown by the arrow in FIG. FIG. 4 is a sectional view taken along the - arrow in FIG. 1. FIG. 5 is a cross-sectional side view of the upper half of the second embodiment of the present invention. 6 to 10 show other embodiments with different connection parts. In the figure; 1...main body, 1a...hexagonal head,
1b...Tapered extension part, 1c...Conical part, 1d...
Cylindrical part, 1e...Plug, 2...Cock-shaped valve, 3...Liquid passage hole, 4...Stop ring, 5...
...O-ring, 6...Female thread (for connection), 7...Scale, 8...Outer cylinder, 9...Adapter, 10...O-ring, 11...Scale groove, 12...Ring-shaped indicator, 13... ...Liquid hole, 14...Liquid hole, 15
... Space (between the outer tube and conical part), 16 ... Compression spring, 17 ... Boss part, 18 ... Liquid passage hole, 1
9...Open hole, 20...Female thread (of the adapter), 2
1... Circumferential groove (of the plug), 22... Socket,
23... (for locking) bolt, 24... sleeve,
25... Spring, 26... Stop spring,
27... Seal ring.

Claims (1)

[Scope of utility model registration request] A pipe fitting that has an appropriate connection part such as a female or male thread or a plug on the end of the main body and the adapter, where the main body with one connection part has a liquid passage hole provided in the axial center of the main body that can be opened and closed. Along with providing a cock-shaped valve,
Facing the adapter having the other connection part, the base part has a liquid passage hole continuous with the liquid passage hole passing through the outer circumferential surface part, and the extension part having a tapered shaft part at the tip part, The tip of the tapered shaft part is fitted into the shaft center of the other connection part of the adapter, and the transparent outer tube is further sandwiched between the main body and the adapter so that the tapered shaft part can be seen through. is integrally provided in a liquid-tight state, and a ring-shaped indicator is fitted on the outer periphery of the tapered shaft part to be biased toward the larger diameter side of the coaxial shaft by a compression spring, and a ring-shaped indicator is fitted so as to be movable in the axial direction. Fittings.