JPH0737218U - Measuring and other adjusting devices in sprinkler heads - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose of the present invention is to obtain a device for performing air bleeding adjustment work, pressure water confirmation adjustment work, and water pressure measurement work from the sprinkler head side. A vertically movable main valve 2 is provided in an outer cylinder 6 having an upper end inlet 5 that can be mounted on a pipe 16, and the valve 2 is attached to an annular valve seat 19 or 19 'of a spring 20 or 20'. The valve 2 is contacted by force, a through hole 4 is bored in the center of the valve 2, and the small valve seat 21 at the upper end of the through hole 4 is formed by the valve 3 with a spring 20 'or 22.
It is closed by the force of the
3 is released, the main valve 2 is slid, and the inlet 5
In the sprinkler head 18 formed so as to communicate the air with the outside air in the lower part of the outer cylinder 6, the pressure water on the inflow port 5 side is pushed through the through hole 4 by pushing up the valve 3 in the undissolved state of the soluble piece 1. 6 is formed so as to be introduced into a connecting pipe 7 arranged at the lower part of 6, and an air bleeding and pressure measuring device 9 is detachably connected to the connecting pipe 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This proposal relates to a device for bleeding air from a sprinkler head and measuring pressure.

[0002]

[Prior art]

 In the conventional lever type sprinkler, (1) It is necessary to install an extra air bleeding part in a part of the sprinkler piping. (2) It is necessary to provide a piping gradient for venting air and draining water. (3) It is not possible to confirm how much water pressure (static pressure) is being applied inside the pipe at all times, and it is also impossible to check the dynamic pressure. (4) Partial injection of drug is difficult. (5) When the sprinkler head is installed due to extension or renovation, it is difficult to confirm whether the piping is connected after the construction.

[0003]

[Problems to be solved by the device]

 The purpose of this plan is to obtain a device that facilitates air bleeding adjustment work, water pressure confirmation adjustment work, and water pressure measurement work from the sprinkler head side.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the main idea is to install a vertically movable main valve in an outer cylinder equipped with an upper end inlet that can be attached to a pipe, and contact the valve with an annular valve seat by the force of a spring. A hole is formed in the center of the through hole, the valve is used to close the small valve seat at the upper end of the hole by the force of the spring, and the meltable piece releases the force of the spring to slide the main valve and slide the main valve into the inlet. In a sprinkler head formed so as to communicate between the outer cylinder and the outside air in the lower part of the outer cylinder, pressure water on the inlet side is placed in the lower part of the outer cylinder through the through hole by pushing up the valve in the undissolved state of the soluble piece. Of the pressure measuring device provided in the connecting pipe with the air bleeding device installed in the connecting pipe. Electromagnetic switching provided at the outlet A measuring device and other adjusting device in the sprinkler head according to the above-mentioned invention, which is a container in which a pressure measuring device has a central portion communicated with a connecting pipe, the container is provided with a pressure sensor and the solenoid opening / closing valve, and The water flow sensor is provided, and the water flow sensor and the pressure sensor are connected to a control device of an electromagnetic on-off valve and a pressure gauge is provided. The measurement and other adjustment devices in the sprinkler head according to the first or second invention are constituted. It

[0005]

[Action]

 In this plan, when the fusible piece of the sprinkler head with the upper inlet port attached to the pipe is in a non-dissolved solid state and the valve is pushed up from the through hole of the main valve, the air on the main valve flows out below the through hole and is introduced into the connecting pipe. Then, it is discharged to the outside air from the normally open electromagnetic on-off valve provided at the discharge port of the container of the pressure measuring device connected to the pipe.

After the air is discharged, the pressure water in the pipe is introduced into the connection pipe and enters the container of the pressure measuring device, and the water flow sensor detects this and operates the control device by the signal. The on-off valve is closed, and the pressure water in the pipe is filled in the container, the pressure sensor senses this, and the control device is operated by the signal, and the water pressure can be displayed by the pressure gauge.

[0007]

【Example】

 A check valve 17 is provided at the base of the above-ceiling pipe 16, a plurality of branch pipes 16 ′ are provided in the pipe 16, and the upper end inlet port 5 of the outer cylinder 6 of the sprinkler head 18 is screwed at the tip of the branch pipe 16 ′. Wear a unit block and provide a group of sprinklers (FIG. 4).

A main valve 2 which can be raised and lowered is built in the outer cylinder 6, and the valve 2 is installed in a downward annular valve seat 19 (FIGS. 1 and 3) or an upward annular valve seat 19 ′ (FIG. 2). The pressure water in the pipe 16 and the branch pipe 16 'can be stopped by contacting with the force of the spring 20 or 20'.

A through hole 4 is bored in the central portion of the main valve 2, and an upper end small valve seat 21 of the through hole 4 is formed by a valve 3 to form a spring 22 (FIGS. 1 and 3) or 20 ′ (FIG. 2). ) Force to stop the water to stop, and the force of the above-mentioned strip 22 or 20 'is supported via the heat-sensitive fusible piece 1, and the above-mentioned strip 20 (FIGS. 1 and 3) is produced by heating or melting the fusible piece 1. Or 23 (FIG. 2) to release the main valve 2 downwards (FIGS. 1 and 3) or upwards (FIG. 2), and from the inlet 5 into the pipe 16 and the branch pipe 16 ′. The sprinkler head 18 is formed so that the pressurized water can be ejected from between the main valve 2 and the valve seat 19 (FIG. 1, FIG. 3) or 19 '(FIG. 2) to the outside air below.

The fusible piece 1 is normally solid and holds the main valve 2 in a closed state by the spring 20 (FIG. 1, FIG. 3) or 20 ', 23 (FIG. 2). In this state, the valve 3 closes the through hole 4 by the rib 22 or 20 ', but the connecting pipe 7 arranged in the lower portion of the outer cylinder 1 causes the spindle 25 having the through hole 24 (Fig. 1, 2) or directly (FIG. 3) is pushed up from the small valve seat 21 through the through hole 24 or directly into the connecting pipe 7 and the air on the main valve 2 is introduced. The air bleeding device 8 is discharged from the air.

After the air is discharged or when there is no air, the pressure water on the main valve 2 is directly introduced into the tubular container 11 via the connecting pipe 7, and the pressure water is detected by the water passage sensor 13, and the signal 13 thereof is detected. 'Actuates the control device 14 to close the normally open solenoid valve 10 and the tubular container 11 is filled with the pressure water, and the signal 12 from the pressure sensor 12 causes the control device 14 to actuate the pressure to the pressure gauge 15. Can be displayed, which forms the pressure measuring device 9.

In FIG. 1, the valve 3 is designed so that water is stopped by the ridge 22 and is pushed up by the connecting pipe 7 to bleed air. However, the ridge 22 is replaced with a screw, and the screw is turned by the connecting pipe 7. It is also possible to adopt a structure in which the valve 3 is opened to release air (not shown).

Reference numeral 7 ′ in FIG. 3 is a slit for taking in air or pressure water formed at the upper end of the connecting pipe 7, and reference numeral 26 in FIGS. 1 and 3 is an annular shape for supporting the push-up bar 20 of the main valve 2. A metal fitting, 27 is a fusible piece supporting protrusion, 6'in FIG. 2 is a partition wall provided in the middle of the outer cylinder 6, 6 "is a water discharge hole thereof, 20 'is a push-down bar of the valve 3 and the main valve 2, 28 is a spindle push-up. Reference numeral 29 denotes an introducing cylinder provided at the upper end of the connecting pipe 7 so as to be screwed to the outer cylinder 6. Reference numeral 30 denotes a spindle forcibly protruding protrusion provided at the center of the introducing cylinder 29, as shown in FIG. 31 is a drug injecting device such as an antifreezing liquid attached to the lower end of the connecting pipe 7 in place of the pressure measuring device 9, a is a drug injection path arrow, and 32 is a communication signal signal between the injecting device 31 and the pressure measuring device 9. .

[0014]

[Effect of device]

 Since the present invention is configured as described above, not only can the air in the pipe 16 (including the branch pipe 16 ') be easily degassed from the sprinkler head 18, but also the pressure of the pressure water in the pipe 16 can be adjusted. There is an effect that confirmation adjustment and measurement can be easily performed.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a sprinkler head provided with a measuring device and other adjusting devices of the present invention.

2 and 3 are vertical cross-sectional views of an example of an aspect of the sprinkler head.

FIG. 4 is a view of injecting a drug into a pipe from a sprinkler head.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Soluble piece 2 Main valve 3 Valve 4 Through hole 5 Inlet 6 Outer cylinder 7 Connecting pipe 8 Air bleeding device 8'Outlet 9 Pressure measuring device 10 Electromagnetic on-off valve 11 Container 12 Pressure sensor 13 Water sensor 14 Control device 15 Pressure gauge

Claims (3)

[Scope of utility model registration request] 1. A main valve, which can be raised and lowered, is provided in an outer cylinder having an upper end inlet that can be attached to a pipe, and the valve is brought into contact with an annular valve seat by a spring force, and the valve is attached to a central portion of the valve. A hole is bored, and the small valve seat at the upper end of the through hole is closed by a valve with a spring force, and the meltable piece is melted to release the spring force and slide the main valve to slide the main valve and the lower part of the outer cylinder. In a sprinkler head formed so as to communicate with the outside air, in a non-dissolved state of the soluble piece, pressure water on the inlet side is introduced into a connecting pipe arranged in the lower part of the outer cylinder through a through hole by pushing up the valve. A measuring and other adjusting device in a sprinkler head formed by detachably connecting an air bleeding and pressure measuring device to the connecting pipe. 2. The measuring and other adjusting device for a sprinkler head according to claim 1, wherein the air bleeding device is an electromagnetic opening / closing valve provided at the outlet of the pressure measuring device provided in the connecting pipe. 3. A container in which a pressure measuring device communicates with a central portion of a connecting pipe, wherein the container is provided with a pressure sensor and the electromagnetic on-off valve, the container is provided with a water sensor, and the water sensor is The measuring and other adjusting device in the sprinkler head according to claim 1, wherein the pressure sensor is connected to a control device of the electromagnetic opening / closing valve and a pressure gauge is provided.