JPH0115964Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to improvements in automatic flow rate regulating valves.

As shown in FIG. 1, as a conventional automatic flow rate regulating valve of this type, a valve port 2a is connected to a lumen chamber 1c of a valve box 1 having a water inlet 1a and a water outlet 1b by adjusting the water pressure. A thermostat 3 is provided that moves up and down when it comes into contact with the constant flow valve 2 that expands and contracts, and the water temperature is above or below a set temperature.
A valve body 4 is mounted and supported so that it can freely come into and out of contact with the
There is one in which the valve body 4 is formed into a conical shape with its working surface 4a tapering toward the valve seat 2b of the constant flow valve 2, and is disposed on the water outlet 1b side.

This device has a complicated structure because the constant flow valve 2 and thermostat 3 are built into the inner chamber 1c of the same valve box 1, and each part, such as the constant flow valve 2 and thermostat 3, has a It is disadvantageous and inconvenient that separate maintenance cannot be performed.

The present invention was devised to solve these problems in the conventional technology, and by dividing the functional parts of the automatic flow rate regulating valve into blocks, maintenance of each functional part can be simplified and quickly. The purpose of the present invention is to provide a new automatic flow rate adjustment valve that can perform the following steps.

In the present invention, as a means for achieving this purpose, the water outlet 11 is opened in the center of the bottom 12 of the bottomed cylinder 10, and a constant flow valve is installed in the lumen 13 of the cylinder on the side of the water outlet 11. 14 and a threaded part 16 on the open part 15 side, a needle valve 19 connected to a temperature sensing part 18 of a thermostat 17, and a head 21 of an actuating rod 20 that protrudes and retracts from the temperature sensing part 18. a temperature control section b consisting of a coil spring 23 interposed between the spring receiver 22 to receive the spring receiver 22 and the needle valve 19; Threaded portion 16 on the open portion 15 side of the body a from the outside
A cap c having a threaded portion 27 and a water outlet 28 which are screwed together are formed separately, a temperature control portion b is provided in the body a, and an end portion 22a of the spring receiver 22 is attached to the body a. The needle valve 19 is inserted so that it abuts against the edge 15a on the open portion 15 side, and the tip side of the needle valve 19 faces into the valve port 14a of the constant flow valve 14 in the body a, and the cap c is inserted into the body a from the outside. The present invention proposes an automatic flow rate regulating valve which is screwed and assembled onto the open portion 15 side of a.

Next, embodiments will be described in detail with reference to the drawings.

Figure 2 A is an automatic flow control valve A that can implement the present invention.
2 is a side view of the assembled state. In the figure, a shows the body, b shows the temperature control section, and c shows the cap.
The body a, the temperature control part b, and the cap c are each formed into separate blocks as shown in Fig. 2B, and by removably assembling them, automatic flow rate adjustment is possible. Assembled to valve A.

The body a has a water outlet 11 connected to a bottomed cylinder 10.
A constant flow valve 14 is provided in the cylindrical lumen 13 on the water outlet 11 side and opened in the center of the bottom 12 of the opening part 15.
A male threaded portion 16 is carved on the outer periphery of the side. The constant flow valve 14 is configured such that the diameter of the valve port 14a is expanded or contracted by water.

The temperature control section b controls the needle valve 19 connected to the temperature sensing section 18 of the thermostat 17, and the head 21 of the actuating rod 20 that protrudes and retracts from the temperature sensing section 18, as shown in FIG. Spring receiver 22
and a coil spring 23 interposed between the needle valve 19 and the end portion 22 of the spring receiver 22.
The needle valve 19 is connected to the body a in a state in which the needle valve
It is designed to be inserted inside. When the actuating rod 20 contracts, the coil spring 23 uses its urging force to move the needle valve 19, which is integrated with the thermostat 17, through its frame 24, as shown in FIG. 2C. As well as raising
submerging the actuating rod 20 into the temperature sensing section 18;
Conversely, when the actuating rod 20 extends, it is pressed against the spring receiver 22 and compressed by the frame 24 of the needle valve 19, which descends together with the thermostat 17, as shown in FIG. 4C. It's becoming like that.

The cap c has a through hole 25 in the bottom part 26 which fits into the temperature sensing part 18, and a female thread part 27 which is screwed into the male thread part 16 on the open part 15 side of the body a from the outside of the spring receiver 22. engraved with
Furthermore, as shown in FIGS. 2 and 4, water intake ports 28 are provided on both sides. 29 is a spring receiving seat.

The temperature control section b is inserted into the body a, the temperature control section b, and the cap C from the open section 15 side of the body a, and the needle valve 19 is connected to the constant flow valve 14 in the body a. The end 22a of the spring receiver 22 facing into the opening 14a is brought into contact with the edge of the open part 5 side of the body a, and from this state, the cap c is placed over the outside of the temperature control part b, and the threaded part 27
is screwed into the threaded portion 16 on the open portion 15 side of the body a, thereby assembling the automatic flow rate regulating valve A shown in FIG. 2A.

The automatic flow rate regulating valve A constructed in this manner operates as follows.

When inspecting, release the threaded portion between body a and cap c. As a result, the automatic flow rate regulating valve A is divided into three blocks: a body a, a temperature control section b, and a cap c. Therefore, maintenance of the constant flow valve 14 is carried out independently in the block of body a, and maintenance of the thermostat 17, needle valve 19, coil spring 23, etc. is carried out in the block of temperature control section b.

As described above, the automatic flow rate regulating valve of the present invention has the water outlet 11 provided in the center of the bottom 12 of the bottomed cylindrical body 10, and the constant flow valve 14 provided in the lumen 13 of the cylindrical body on the side of the water outlet 11. A body a provided with a threaded portion 16 on the open portion 15 side, a needle valve 19 connected to the temperature sensing portion 18 of the thermostat 17, and a spring receiver for receiving the head 21 of the actuating rod 20 that protrudes and retracts from the temperature sensing portion 18. 22 and a coil spring 23 interposed between the needle valve 19; Threaded portion 16 on the open portion 15 side of the body a
A cap c having a threaded portion 27 and a water outlet 28 which are screwed together are formed separately, a temperature control portion b is provided in the body a, and an end portion 22a of the spring receiver 22 is attached to the body a. The needle valve 19 is inserted so that it abuts against the edge 15a on the open portion 15 side, and the tip side of the needle valve 19 faces into the valve port 14a of the constant flow valve 14 in the body a, and the cap c is inserted into the body a from the outside. Since it is constructed by screwing and assembling the constant flow valve 14 and the temperature control part b on the open part 15 side of the block a, the maintenance of each functional part such as the constant flow valve 14 and the temperature control part b can be done separately for each block and can be done separately from other functional parts. This can be done easily and quickly in a separated state, and the structure can also be simplified.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of a conventional automatic flow rate regulating valve, Figure 2 A is a front view of the automatic flow rate regulating valve of the present invention in a state where the thermostat is raised, and Figure 2 B is an exploded longitudinal sectional view of the state. , Fig. 2C is a longitudinal cross-sectional view of the automatic flow control valve of the present invention when in use, Fig. 3A is a side view of the automatic flow rate regulating valve according to the present invention with the thermostat raised, and Fig. 3B is an exploded longitudinal cross-section of the above-mentioned automatic flow control valve of the present invention. 3C is a vertical cross-sectional view of the automatic flow rate regulating valve of the present invention when in use, FIG. An exploded longitudinal sectional view, FIG. 4C is a longitudinal sectional view in that state during use. Explanation of drawing symbols, A...Automatic flow rate adjustment valve, a...
...Body, b...Temperature control section, c...Cap,
10...Bottomed cylindrical body, 11...Water outlet, 12...
Bottom, 13... Cylindrical lumen, 12... Bottom, 13...
... Cylinder lumen, 14 ... Constant flow valve, 14a ... Valve port, 15 ... Opening part, 15a ... End edge, 16 ...
Male thread part, 17...Thermostat, 18...Temperature sensing part, 19...Needle valve, 20...Operating rod, 21...Head, 22...Spring receiver, 22a...
... End, 23 ... Coil spring, 24 ... Frame, 2
5... Through hole, 26... Bottom, 27... Female threaded part,
28...Water intake, 29...Spring receiver.

Claims (1)

[Claim for Utility Model Registration] A water outlet 11 is provided in the center of the bottom 12 of the bottomed cylinder 10, and a constant flow valve 14 is provided in the lumen 13 of the cylinder on the side of the water outlet 11, and a screw is provided on the open part 15 side. A needle valve 19 connected to the temperature sensing part 18 of the thermostat 17, a spring receiver 22 that receives the head 21 of the actuating rod 20 that protrudes and retracts from the temperature sensing part 18, and the needle valve 19. and a temperature control part b consisting of a coil spring 23 interposed between the temperature control part b, which has a through hole 25 that fits into the temperature sensing part 18 of the thermostat 17, and an open part of the body a from the outside of the spring receiver 22. 15 side threaded part 16
A cap c having a threaded portion 27 and a water intake port 28 which are screwed together are formed separately, a temperature control portion b is provided in the body a, and an end portion 22a of the spring receiver 22 is attached to the body a. The needle valve 19 is inserted so that it abuts against the edge 15a on the open portion 15 side, and the tip side of the needle valve 19 faces into the valve port 14a of the constant flow valve 14 in the body a, and the cap c is inserted into the body a from the outside. An automatic flow rate adjustment valve that is screwed and assembled to the open part 15 side of a.