JPH01219223A - Antifreezing tap - Google Patents

Abstract

PURPOSE:To prevent a feed water rise pipe from being frozen at the time of a cold climate, by using an object provided with a cornice-formed rugged section, for an external pipe among three layer pipes arranged outside a water conducting section, and by forming a drain plug and the feed water rise pipe integrally to be one cylinder, to put the operating section of the drain plug on ground. CONSTITUTION:Outside a water conducting pipe 13, a first pipe 8 provided with a cornice-formed rugged section 8A from an external side, a second pipe 10, and a third pipe 12 are arranged in order, and are sealed and fixed, and the sealed upper surfaces of the pipes 8, 10, 12 are fixed on an upper casing 17. A space between the pipe 8 and the pipe 10 is set to be a vacuum chamber 9, and in a space between the pipe 10 and the pipe 12, Fron gas is sealed. Then, a handle 7 for operating a change-over valve 6 is provided with an on-ground section, and an antifreezing tap 1 is formed. As a result, sanitary water mixed with no dirty water when water is dropped can be fed, and even if water drop is forgot, a section up to the feed outlet of a main device is protected by earth heat (due to the convection of Fron gas), and is not frozen. Besides, a gas pipe is protected in high vacuum, and thermal efficiency is enhanced, and even in a severaly cold district, the pipe is contrived not to be frozen at all.

Description

[Detailed description of the invention] [A field of use in business] The present invention relates to an antifreeze faucet.

[Prior Art] Conventionally, this type of device is as follows.

In the conventional drain valve 50, a switching valve 51 operated by a handle 53 above ground is buried deep underground.
A water supply pipe 55 is provided branching off from the switching valve 51, raised above the ground, and connected to each water supply section.

Therefore, 51 is a switching valve that switches between water supply and water drainage, and its lower end is connected to the water pipe 54 via an elbow 54A, and the outer shell pipe 52 is connected to its upper end and rises above the ground. A handle 53 for operating the switching valve is fixed.

Reference numeral 55 denotes a riser pipe for water supply, which is piped to each water supply section, and its lower end is connected to the water supply port 62A of the switching valve 51.

59 is an ice-breaking pipe, 60 is a cold protection material, and 61 is a cap of the ice-breaking pipe.

58 indicates the ground surface, and 57 indicates the floor of the building.

62 is a valve body body, into which a piston 64 is slidably fitted.

The upper part of the piston 64 is connected to the handle 53 via a loft 66 and a spindle 67.
Since the cap 63 fixed to the upper end of the cap 63 and the spindle 67 are screw-fitted, when the handle 53 is turned, the spindle 67 moves up and down, and the piston 64 connected thereto also slides up and down.

When the piston 64 is in the upward position, water is supplied. That is, water from the water pipe enters from the lower end of the valve body, and the water enters through the water passage hole 6.
When the water reaches the water supply port 62A through the water supply port 2C and is supplied with water through the riser pipe 55, the gasket 72 prevents the water from flowing upward.

Next, turn the handle 53 and lower it until the gasket 70 provided on the piston comes into close contact with the upper surface of the water passage hole 62C to close the water passage hole 62C, as shown in FIG. state.

That is, the water in the riser pipe 55 and each pipe beyond it is
It passes from the water supply port 62A through the gap between the inner surface of the valve body body and the piston, and from the water drain hole 64B provided in the piston to the check valve chamber 64A.
Enter, push aside the check ball valve 68 and go to the drainage road 62B.
It is then released to the outside.

69 is a water stop bulb, and when the piston part is pulled upward during maintenance etc., water pressure causes the water stop ball 69 to close to the water passage hole 62C.
It fits tightly to the bottom surface of the container and prevents water from gushing out. Normally,
A water stop bulb 69 is held by a water stop ball holder 65 attached to the lower end of the piston so as not to block the water passage hole 62C.

71, 73 and 74 are Patsukin.

[The problem that the invention tries to solve! X1 The prior art described above had the following problems.

l) Since the switching valve 51 is buried deep underground, when the groundwater level is high in the water draining state, the water drain passage 6
2B, underground sewage flows into the check valve chamber 64A and contaminates the valve seat 84D, resulting in poor contact between the valve seat 64D and the check ball valve 68. As a result, the sewage flows through the water drain hole 64B to the water supply port 8.
Since the water flows in the direction 2A, when the valve is switched to water supply, this dirty water flows to each water supply section, which poses a sanitary problem.

2) When servicing the main body of the switching valve 51, it is necessary to close the main valve of the underground water supply and dig up to the position of the valve 51.

3) Rise (water supply) pipe 55 branched from valve 51
Usually, there is no insulation equipment and there is a risk of freezing in cold weather.

In addition, in some cold regions, a method is used in which a deicing pipe 59 is fitted into the riser pipe and hot water is injected from the upper end to thaw the ice when it freezes, but this method prevents freezing. In some cases, the outside of the ice-breaking pipe 59 is covered with a cold protection material 60 made of foam polystyrene or the like.
At present, it is difficult to maintain the heat retention effect because it is damaged by thickness factors such as frost heaving on the ground surface.

The present application was made in view of the problems of the prior art, and its purpose is to provide something that can do the following.

In addition to solving the above-mentioned problems, the present invention aims to rationally deal with the shrinkage phenomenon during welding that occurs when manufacturing concrete products, and to obtain more reliable products with a high yield.

[Means for Solving Eight Problems] In order to achieve the above object, the present invention is as follows.

That is, in the present invention, when three layers of pipes are arranged outside the water passage part and each is sealed and fixed, the pipe located on the outside of the three layers has a bellows-like uneven part on the pipe. By combining the water drain valve and the water supply riser pipe into one simple structure, and by raising the operation part of the water drain valve above the ground, it can be easily repaired in the event of a breakdown, and the water supply riser pipe part can be easily removed. The vacuum space prevents freezing, and even if water is dropped, the operation section is above ground, so sewage underground will not get in. In addition, the control unit is configured to use geothermal heat by convection of fluorocarbon gas to prevent freezing.

[Function] When using water, turn the handle 7 to the left. Water flows from the water supply pipe 3 to the water pipe 13, the water stop ring casing 21, the water supply hole 20B1 in the valve casing, the water supply hole 26A1 in the valve plate 26, and the valve operating plate. 27 water supply hole 27A1, water supply hole 28A of valve plate 28, upper water passage pipe 18, water from water supply pipe 3 passes through the piping, and water comes out from the faucet. When draining water, turn the handle 7 to the right and the water supply hole 27A of the valve operating plate 27 will open.
These are the same as the drain holes 26B and 28B of the valve plates 426 and 28, and when the water inside the pipes is opened, air enters from the faucet due to the gravity of the water and drains into the valve plate 2.
6.28 drain holes 26B, 28B, valve operating plate 27 length 27B, valve casing drain hole 20C
Water in the piping permeates into the ground through drain holes 16A and 16B of the lower support ring.

(When using water, the long valve operating plate 27B, which is sandwiched between the drain holes 28B and 26B of the valve plates 28 and 26, is in the water supply position, and the drain holes are water-tight.

Also, when water is dropped, the valve operating plate 2 sandwiched between the water supply holes 28A and 26A of the valve plate 28°26
The long diameter 27B of No. 7 is located at the water draining position, and the water supply hole is water-tight.

[Embodiment of the invention] 1 is an antifreeze faucet of the present invention, the lower end of which is connected to a water pipe 2 via an elbow 2A, and a water supply pipe 3 is connected from the side of the upper end, from which each water supply is connected. Water is sent to the area.

4 indicates the ground, and 5 indicates the floor of the building.

6 is a switching valve, and 7 is a handle for operating the switching valve. 13 is a water pipe, and a water stop ring casing 21 is screwed onto the upper end of the pipe. A water stop ring 22 is arranged in a hollow part of a water stop ring casing 21, and a water stop ring holder 23 is screwed onto the lower side to prevent the water stop ring from falling. The valve casing 20 is arranged on the upper surface of the water stop ring casing 21, and the knock pins 24 prevent mutual rotation. 20A is a hole into which a dowel pin is inserted. 25 is a water stop bulb holder fixed to the valve casing 20;
Normally, the water stop ring 22 supports the water stop ring casing 21 so as not to block the water passage.

For maintenance, etc., when valve casing 2o is removed,
The water pressure brings the water stop ring 22 into close contact with the lower surface of the hole in the water stop ring casing 21, thereby preventing water from gushing out. A disk-shaped lower valve plate 26, a valve operating plate 27, and an upper valve plate 28, all made of ceramic material, are arranged in close contact with each other in order from the lower surface of the cylindrical hollow portion of the valve casing 2°.

The valve plates 26, 28 are each prevented from rotating relative to the valve casing 2o by a set screw 32, 33.

The upper surface of the valve plate 28 is held down with appropriate pressure by a joint nut 19 via a packing 41.

An upper water passage vibrator 18 is disposed on the upper surface of the joint nut, and its upper end is connected to the upper casing 17. Reference numeral 29 denotes a valve drive shaft, the middle part of which is pipe-shaped, and the hollow part thereof is sealed with fluorocarbon gas to keep the water warm.

The notch 29A at the lower end of the valve shaft 29 fits into an elongated hole 27B provided at the center of the valve operating plate 27, and the upper cylindrical portion fits into the hole 28D at the center of the valve plate 28. They are rotatably fitted. On the other hand, the notch 29B at the upper end fits into the groove 31A at the lower end of the spindle. Further, the leading end has a cylindrical shape, and the top is pressed with an appropriate pressure by a compression spring 30 disposed in a deep hole of the groove 31A of the spindle 31.

35 is a screw cap screwed onto the upper casing 17. 36 is a spindle receiver screwed onto the screw cap 35, and the spindle 31
supporting the

A retaining ring 37 is fitted into a groove provided in the spindle 31, and is supported by a screw cap to prevent it from slipping upward.

Next, we will explain the heat insulation equipment.

Three layers of pipes are arranged outside the water passage and each layer is sealed and fixed. These are referred to as a first pipe 8, a second pipe 10, and a third pipe 12 from the outside.

The sealed upper surfaces of these pipes are fixed to the upper casing 17.

Also, for the water pipe 13, the upper support ring 1
4 and the third pipe 12 by the lower support ring 15
The inner surface of is supported and fixed.

The upper support ring 14 and the lower support ring 15 each have a drain hole 16A.

16B is provided.

Intermediate vacuum chamber 9 between the first pipe 8 and the second pipe 10
The building is kept in a high vacuum and is designed to provide insulation to prevent cold air from passing through. - Freon gas is sealed in the intermediate portion between the second pipe 10 and the third pipe 12, and a gas chamber 11 is formed with the outer diameter of the lower end portion 10A protruding outward.

In this case, a bellows-shaped uneven portion 8A is formed in the lower portion of the first pipe 8.

(In the illustrated case, the unevenness is two-stage, but it is natural that the number is not limited to two levels.) The bellows-like unevenness 8A is formed in this way on the first pipe 8. is located between the upper casing 17 and the gas chamber 11, and when these are welded, there is a temperature difference between them and the pipe located inside, which causes cracks to occur in the welded portion, reducing the yield of the product. make it extremely bad. In this regard, if the bellows-shaped uneven portion 8A is formed as described above, the so-called shrinkage phenomenon that occurs during welding can be avoided, so this problem can be solved.

Operation mechanism of switching valve When water is supplied, water passes through the water supply hole 20B of the valve casing 20 from the water supply hole of the water stop bulb holder 23 to the water supply provided in the lower valve plate 26, valve operating plate 27, and upper valve plate 28, respectively. Hole 26A.

Since the positions of 27A and 28A match, water passes through these holes, passes through the upper water pipe 18'Bt and the hollow part of the upper casing 17, reaches the water supply pipe 3, and is sent to each water supply section.

On the other hand, in this state, the upper and lower valve plates 28.28
The drain holes 26B and 28B provided in the drain holes 26B and 28B are partitioned by the valve operation plate 27, so that water does not flow out from the drain path.

Next, turn the handle to set the valve operating plate 27 at 180°.
゛When you rotate it, it will drain water. That is, since the water supply holes 26A and 28A of the valve plate are closed by the valve operation plate 27, the water supply stops and at the same time, the water supply hole 27A of the valve operation plate matches the drain holes 26B and 28B of the valve plate, so that switching is performed. Valve 6
Water in the upper pipes flows through holes 28B, 27A, and 26B.
It passes through the drain hole 20C of the valve casing and falls.
The water is discharged to the outside of the lower end of the device through the drain holes 16A, 16B of the support ring 14.15.

A small diameter portion is provided on the outer periphery of the valve operating plate 27,
On the other hand, a set screw 34 is fixed to the outer wall of the valve casing 20 in a manner corresponding to the position of the valve actuation plate 27, and its tip is close to the small diameter part of the valve actuation plate 27. The structure is such that the set screw 34 hits the end (stepped part) 27C of the small diameter part of the valve operating plate and stops at the water supply position and water drain position, so when switching the valve, it is necessary to hold the screw 34 until the handle 7 stops. The structure allows you to simply turn it and there is no need to worry about incorrect operation.

39.40, 41, 42.43 are Patsukin.

[Effects of the Invention] Since the present invention is configured as described above, it produces the following effects.

In conventional water drain systems, water is supplied from the water supply wooden pipe through a drain valve and a water supply riser pipe, but in cold regions, if you forget to drain water, the water supply riser pipe may freeze and break, and the water drain valve gasket may wear out and have to be replaced. get up.

On the other hand, with the device of the present application, such failures do not occur, and it is possible to provide a sanitary water supply without contamination with sewage when water is dropped, and even if you forget to drain the water, the water supply outlet of this device is connected to the geothermal heat. Protective and does not freeze (due to convection of Freon gas). Another feature of this device is that it protects against gas damage with a high vacuum, increases thermal efficiency, and does not freeze at all even in extremely cold regions.

In addition, since the bellows-shaped uneven portion 8A is formed in the lower part of the first pipe 8, the first pipe 8 is positioned between the upper casing 17 and the gas chamber 11, and the first pipe 8 is positioned between the upper casing 17 and the gas chamber 11. When welding, there is a temperature difference between the inner pipe and the welded part, which can cause cracks in the welded part and significantly reduce the yield of the product. Since the so-called shrinkage phenomenon that occurs during printing can be avoided, it is possible to obtain a product with higher precision that can solve this problem.

[Brief explanation of the drawing]

Fig. 1 is a front view of the whole with a part cut away, Fig. 2 is an enlarged vertical sectional view of the main part, Fig. 3 is an enlarged perspective view of the main part disassembled, Fig. 4 is a sectional view taken along the line E-E, Figure 5 is a vertical sectional view showing the water passage during water supply, Figure 6 is F
-F line cross-sectional view, Figure 7 is a longitudinal cross-sectional view showing the water passage when draining water, Figure 8 is a front view of the conventional model with a portion cut away, and Figure 9 is an enlarged view of the main parts of the conventional model. 10 and 11 are longitudinal sectional views showing the operation of the valve. 111. Antifreeze faucet, 611. Switching valve, 9, Vacuum chamber, 11, Gas chamber.

Claims (1)

[Claims] When three layers of pipes are arranged outside the water passage part and each is sealed and fixed, the pipe located on the outside of the three layers is a pipe in which a bellows-like uneven part is formed. The water drain valve and water supply riser pipe are combined into a single cylinder, the operating part of the water drain valve is raised above the ground, and the water supply riser pipe part is prevented from freezing by a vacuum space, and geothermal heat is used to prevent the operating part from freezing. An antifreeze faucet characterized by being configured to operate by convection of fluorocarbon gas.