JP2000265502A - Anti-freeze tap column - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anti-freeze tap column capable of easily discharging foreign matters remaining in the inside of a pipe. SOLUTION: A spindle 58 rotating ball valve 33 changing flowing water/ cutting-off/drainage of an anti-freeze tap column 21 is used as a hollow member, one end thereof is mounted to a pit 39b passing through a secondary side of an inside channel 39 of the ball valve. Joint holes 57a and 57b are provided downward by a specific distance from the closed upper end of the spindle to the side walls thereof, a guide shower 61 controlling a range of rotation of the ball valve is mounted to the circumference of the spindle downward of the joint holes to partition a route through a valve chamber 25 from a riser pipe 47 into up and down, and foreign matter accumulation spaces 63 and 65 are respectively partitioned to the upper part of the inside of the spindle and the lower part of the circumference thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antifreeze water column, and more particularly, to an antifreeze water column using a ball as a switching mechanism between a water-passing state, a water stoppage state, and a drainage state.

[0002]

2. Description of the Related Art As one of faucets, there is a faucet column installed outdoors, for example, in a garden or the like. As a faucet used in cold regions, there is an antifreeze faucet provided with a drainage mechanism using a ball. FIG. 2 shows an example.

FIG. 2 shows a main part of a conventional antifreeze faucet column.
It is a longitudinal cross-sectional view which shows the valve mechanism for switching a water-flow state, a water stoppage, and a drainage state. Reference numeral 1 denotes a plug body, which is provided with an inlet 2 to which a primary side is connected.
To the valve chamber 3 in which is stored. The ball 4 has an L-shaped internal flow path 5 and is supported by two ball sheets 6 and 7. In the ball 4, a through hole having one end communicating with the internal flow path 5 is formed as a drain hole 8 on the near side of the drawing. Reference numeral 9 denotes a ball retainer, and reference numeral 10 denotes a drain stopper. The main body 1 has a spindle 1 from above.
1 is inserted, and the vertical hole 5 of the internal flow path 5 of the ball 4 is further inserted.
a, the square shaft portion 11 a at the tip end thereof is fitted in a square hole formed through the lower portion of the ball 4. Reference numeral 12 denotes a spindle holder.
A riser pipe 13 is connected to the hollow square pipe 1 having a faucet column appearance so as to surround the riser pipe 13.
4 is received by a lower cap 15 attached to the spindle retainer 12 and stands upright. The upper end of the riser 13 is closed by a stopper (not shown), and the upper end of the square pipe is closed by an upper cap (not shown), and a rod 16 connected to the spindle 11 passes through the stopper and the cap. A handle (not shown) for operating the ball 4 is attached to the end thereof. Further, a cheese (not shown) for forming a flow path to the side from the riser 13 is attached at a position below the stopper, and a tip of the cheese is formed through a hole formed on the side of the prism 14. The inserted hollow faucet fitting (not shown) is coupled to which the faucet (not shown) is attached. In the state shown in the drawing, the water that has entered from the inflow port 2 passes through the internal flow path 5 of the ball 4, passes through the spindle holder 12, enters the riser 13, and passes to the faucet. When the ball 4 is rotated by 90 degrees counterclockwise around the axis of the spindle as viewed from above, the communication between the inlet 2 and the valve chamber 3 is blocked by the ball 4 and water is stopped. On the other hand, drain hole 8
Are the central opening 7a of the ball seat 7 and the ball retainer 9
The water in the riser 13 is drained by communicating with the check plug 10 through the drain hole 9a. The rotation range of the spindle 11 is determined by a pin 17 attached to the spindle 11.
Is restricted by moving in a notch 1a formed in the upper end of the plug body 1 at a predetermined length in the circumferential direction.

In the conventional antifreeze water faucet having the above-described configuration, the area of the flow passage is reduced because the spindle 11 extends inside the water passage. In particular, the spindle 11 penetrates through the vertical hole 5a of the ball 4, and in this portion, the flow path area is significantly reduced. In the lateral hole 5b of the internal flow path, the spindle 11 is positioned so as to cross the flow direction,
An obstacle to flow. In addition, the pin 17 that regulates the rotation range of the spindle 11 is also positioned so as to cross the flow of the water, which obstructs the flow.

[0005] By the way, when a faucet pillar is constructed, gravel or excess adhesive may remain as foreign matter in the pipe. These foreign substances may not be able to pass through the water stopping mechanism due to the narrowed flow path as described above or due to the presence of an obstacle, and may continue to be present around the ball, damaging the ball and the like, and causing a poor water stopping. There is. As a countermeasure, it is conceivable to attach an auxiliary mechanism such as a strainer. However, since the faucet pillar is buried in the soil, maintenance cannot be performed, which is inappropriate.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and the problem to be solved by the present invention is to secure a sufficient flow passage area and prevent obstacles to the flow. The antifreeze water has a structure that drains and allows smooth water flow, and the remaining foreign matter is easily discharged at the initial stage such as a water flow test performed immediately after installation, and is not easily affected by the remaining foreign matter. To provide a plug. In addition, in consideration of the use environment, it is possible to consider the fact that foreign matter that has not been exhaled remains, so that such foreign matter is deposited at a specific location, and an antifreeze water faucet pillar is provided that does not damage such balls to balls and the like. Is also an object of the present invention.

[0007]

In order to solve the above-mentioned problems, according to the present invention, a spindle connected to a ball valve body is hollow, and one end thereof is connected to a secondary side of an internal flow path of the ball valve body. It was configured to be attached to the opening communicating with the.

Further, a regulating member for regulating the rotation range of the ball valve body is mounted on the outer periphery of the spindle, and is located outside the flow path.

In addition, a deposition space for fibrous suspended solids is formed in an upper portion inside the spindle, and a deposition space for solid particulates is formed in a lower portion around the spindle.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings, but the scope of the present invention is not limited to the embodiments described below.

FIG. 1 is a longitudinal sectional view showing a main part of an antifreeze water faucet 21 (hereinafter simply referred to as a faucet) according to an embodiment of the present invention. In the following description, a detailed description of the same members as those of the faucet pillar in the above-described conventional example will be omitted. The plug body 23 includes a valve chamber 25 therein, and further includes an inlet 27 communicating with the valve chamber.
A tubular riser tube mounting portion 29 communicating with the valve chamber 25 to which a riser tube described later is attached is provided.

The valve chamber 25 has a ball valve 31 as a valve body.
Are rotatably supported by ball seats 33 and 35 having central openings 33a and 35a, respectively. Reference numeral 37 denotes a ball holder. Ball valve 3
1, an internal flow path 39 is formed.
Is composed of a bottomed horizontal hole 39a drilled in the horizontal direction, and a vertical hole 39b drilled from above and communicating with the horizontal hole 39a. In the illustrated state, the side hole 39a communicates with the inflow port 27 through the opening 33a of the ball seat 33.
For example, when the ball valve 31 is rotated 90 degrees counterclockwise as viewed from above in FIG.
3a, the communication with the inflow port 27 is cut off. The ball valve 31 further includes, on the near side in FIG.
A drain hole 41 communicating with the lateral hole 39a is provided. When the ball valve 31 is rotated counterclockwise by 90 degrees when viewed from above in FIG. 1, the drain hole 41 is aligned with the opening 35 a of the ball seat 35, and the drain hole 37 a formed in the ball holder 37 is formed. Through this, it communicates with the check valve 43 for drainage.

A hollow spindle holder 45 is attached to the riser tube mounting portion 29 by screw connection on the lower side, and a riser tube 47 is attached to the upper inner peripheral portion of the spindle holder 45 by screw connection. I have. Reference numeral 49 denotes an anticorrosion pipe end core attached to the end of the riser pipe. A lower cap 51 is attached to the outer peripheral portion of the spindle holder 45 on the upper side, and a square pipe 53 is received by the lower cap 51 so as to receive a rising pipe 47.
It is erected around. Reference numeral 55 denotes a heat insulating material arranged around the rising pipe 47.

Reference numeral 57 denotes a hollow spindle extending from the riser pipe 47 into the plug body 23, and the lower end thereof is an opening communicating with the secondary side of the internal flow path 39 of the ball valve element 31. The rod 59 is fitted to the vertical hole 39b, and is closed at the upper end by being connected thereto. In the present embodiment, the spindle 57 is a square hollow pipe,
The vertical hole 39b has a rectangular shape corresponding thereto, and the ball valve 31 is rotatable about the axis of the spindle integrally with the spindle 57. The spindle 57 and the vertical hole 39b
The shape of the spindle 5 is not limited to this.
It suffices if a sufficiently wide channel is provided in the inside and a coupling method in which both are integrally rotated is used. It is also possible to use a hexagonal or other polygonal pipe as well as a round pipe with its lower end cut on both sides or four sides.

A circular guide washer 61 is formed on the outer periphery of the spindle 57 at a position near the upper end of the internal hole of the riser pipe mounting portion 29 of the plug body 23, and a square hole formed in the center is formed on the outer periphery of the spindle. It is attached so that it fits and rotates together. An outer projection of the guide washer 61 is provided with a projection 61 a protruding outward, and the projection 61 a enters a notch extending in a circumferential direction formed at an opening of the riser tube attachment portion 29 of the plug main body 23, The range of rotation of the ball valve 33 is regulated. An inner flange 45 a formed on the spindle holder 45 is located above the guide washer 61.
Is stopped.

On the side wall of the spindle 57, upper and lower communication holes 57a and 57b are formed at different positions in the height direction.
Through this hole, the inside of the spindle 57 is
9 inside. The upper communication hole 57a is provided below a certain distance from the end of the rod inserted into the spindle 57, and the lower communication hole 57b is provided above a certain distance from the guide washer 61. ing.

The upper end of the rod 59 extends through a stopper (not shown) at the upper end of the riser 47 and an upper cap (not shown) provided at the upper end of the square pipe 53, and a handle (not shown) is provided at the end thereof. ) Is provided, and a faucet is attached via a cheese or the like attached to a riser tube, as in the conventional example.

In the antifreeze water faucet column 1 configured as described above, the water is in a flowing state in the illustrated state, and the water entering from the inflow port 27 enters the internal flow path 39 of the ball valve 31, and the hollow spindle The gas flows through the inside of the rising pipe 57 through the communication holes 57a and 57b. When the ball valve is rotated by 90 degrees, water is stopped. Water in the riser pipe 47 passes through the hollow spindle 57, the internal flow path 39, the drain hole 41, and the opening 35 a of the ball seat 35 from the drain check valve 43. Drained.

In the case of the faucet pillar of the present invention, the flow path is not narrowed by the spindle as in the prior art.
Also, the spindle does not obstruct the flow across the water flow direction. Therefore, a sufficient flow area can be ensured, and there is no obstacle to the flow, so that a smooth flow of water can be ensured. In addition, the guide washer that replaces the rotation control pin, which was conventionally located in the flow path of water and also obstructed the flow, is not located in the flow path, and it is also likely to be obstructed by the flow of water. Not be. Therefore, the foreign matter remaining in the pipe is easily discharged.

However, depending on the use environment, installation conditions, and the like, it may not be possible to compensate for the fact that all foreign matter remaining in the pipe is discharged during the water flow test. In the case of the water faucet of the present invention, even if the water cannot be discharged, the foreign matter that has once passed through the water stop mechanism and moved to the secondary water passage part moves around the water stop mechanism part and damages it. Is prevented as follows.

That is, foreign matter remaining in the pipe immediately after construction is roughly classified into a granular solid represented by sand and the like, and a fibrous suspended matter such as tape scraps and excess adhesive. The hollow spindle 57 separates the water passage space of the water stopping mechanism section from the water passage space inside the appliance downstream of the water stopping mechanism section, and foreign matter reaching the water passage space inside the appliance on the downstream side returns to the water stopping mechanism section again. Is to be prevented. That is, the upper communication hole 57a formed in the spindle 57 is
7 is provided below the end of the rod inserted through 7 at a certain distance, and a deposition space 63 of fibrous suspended matter is formed in the upper part of the spindle 57. Due to the shape of the fibrous suspended matter, communication holes 57a, 5
Although the mobility from 7b to the riser pipe 47 is inferior, due to its floating property, it is accumulated in the upper accumulation space 63 by being entangled with the upper communication hole 57a and does not fall downward. On the other hand, the solid particulate matter easily passes through the communication holes 57a and 57b and does not return into the spindle 57. Then, the solid particulate matter is deposited in the solid particulate accumulation space 65 formed below the lower communication hole 57b around the spindle 57. The accumulation space 65 is separated from the lower valve chamber 11 by a guide washer 61 located below the accumulation space 65, and foreign matter accumulated there does not move downward. That is, the guide washer 61 partitions the path leading from the riser pipe 47 to the valve chamber 11 up and down. When a cylindrical member is used as the spindle 57, for example, the inner flange 45a of the spindle 45 may be made smaller in inner diameter than in the illustrated example, so that the deposition space 65 may be partitioned from the lower valve chamber 11 side. . Note that it is not always necessary to provide two communication holes, and one communication hole may be provided, or three or more communication holes may be received if necessary. However, in the case of providing a plurality, it is desirable to change the position in the height direction so that there is no bearing even if the lower communication hole is closed by the deposited foreign matter.

[0022]

As described above in detail, in the present invention, since the spindle for rotating the ball valve is hollow and is connected at the opening communicating with the secondary side of the internal flow path of the ball valve, the water flow is reduced. A sufficiently large road area can be ensured, and since there is no member crossing the water flow direction, a smooth flow of water can be ensured, and foreign matter remaining in the pipe can be easily discharged.

Since the regulating member for regulating the rotation range of the ball valve is mounted on the outer periphery of the spindle, this member does not obstruct the flow of water.

Further, the upper end of the spindle is closed, and a communication hole for communicating the inside of the spindle with the inside of the riser is formed in the side wall of the spindle at a predetermined distance below the upper end. Since the deposition space was defined, and further, a partition member was provided to partition the path leading from the riser pipe formed around the spindle to the valve chamber at a position below the communication hole, thereby defining the deposition space for solid particulate matter. Also, foreign substances that could not be discharged accumulate in these accumulation spaces without damaging the water stopping mechanism.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part of an antifreeze water faucet according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of a conventional antifreeze water faucet column.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Antifreeze water cock 23 Plug main body 25 Valve room 27 Inlet 29 Rise pipe attachment part 31 Ball valve 39 Internal flow path 39a Side hole 39b Vertical hole 41 Drain hole 43 Drain check valve 57 Spindle 57a, 57b Communication hole 63 Floating Material accumulation space 65 Solid granular material accumulation space

Claims (5)

[Claims] A plug body having a valve chamber formed therein, an inflow port, and a riser pipe connection part; a riser pipe connected to the riser pipe connection part; An internal flow path for disposing the inflow port and the riser pipe, a valve body having a drain hole communicating with the internal flow path at one end, and a drain plug attached to the plug body. A spindle extending from inside the riser pipe toward the valve chamber, and connected at one end to the valve body so as to be integrally rotatable and operable from the outside. In a water drainage antifreeze faucet for switching between water and drainage, the spindle is formed of a hollow pipe, and one end thereof is connected to an opening communicating with a secondary side of the internal flow path of the valve element, In the jurisdiction An antifreeze faucet pillar, wherein a communication hole communicating with the inside of the riser is provided at a portion where the riser pipe is placed. 2. The antifreeze water tap according to claim 1, wherein a rotation restricting member for restricting a rotation range of the spindle is attached to an outer periphery of the spindle at the riser tube attaching portion. To do, antifreeze faucet pillar. 3. The antifreeze water tap according to claim 1, wherein
The upper end of the spindle is closed, and the communication hole is provided on a side wall of the spindle at a predetermined distance from the closed upper end, and is provided below. 4. The antifreeze faucet pillar according to claim 1, further comprising a partition member for vertically partitioning a path from the riser pipe formed around the spindle to the valve chamber. An antifreeze faucet pillar provided below the hole. 5. The antifreeze water tap according to claim 4,
The antifreeze tap column is characterized in that a partition member is attached to the outer periphery of the spindle at the riser tube attachment portion, and is constituted by a rotation regulating member that regulates a rotation range of the spindle.