JP2801977B2 - Ball tap for water tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball tap for a water tank, and more particularly to a pilot ball tap for a water tank.

[0002]

2. Description of the Related Art Conventionally, various taps for a water tank provided in a water tank have been provided, and a typical one is disclosed in Japanese Patent Application Laid-Open No. Sho 60-105724. This is shown in FIGS.
A pilot valve 7 which is opened and closed by a float 4 floating on the water surface in the water storage tank 1 is provided at the front part of the hydrant body 3 as shown in FIG. The pilot valve 7 is provided at the rear end of the arm 8 extending forward, and the floating member 4 is provided at the tip of the arm 8. Then, as the float 4 moves up and down as indicated by the imaginary line in the figure according to the fluctuation of the water level in the water storage tank 1, the pilot valve 7 is opened and closed, and the water supply into the water storage tank 1 is automatically performed. It has become.

[0003]

However, in the above-mentioned conventional example, the float 4 is attached to the front of the water tap main body 3 via the arm 8, so that the float 4 is mounted in front of the water tap main body 3. And the ball tap itself becomes large, and the arm 8 is mounted on the hydrant body 3 so that the water level rises.
As it descends, it rotates around the shaft. Therefore, other members,
For example, the arm 3 of the siphon tube 30 or the cleaning lever 31
If there is a member such as a ball chain 33 attached to the arm 2 or the arm 32, the float 4 comes into contact with these members and the movement is hindered.
This hinders normal operation, and there is a problem that the size of the water storage tank 1 and the arrangement of the internal members are greatly restricted.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and it is compact, has a small mounting limit, and can easily adjust the height of a float without requiring a large space. It is intended to provide a ball tap for a tank.

[0005]

According to the present invention, in order to achieve the above object, a pilot-type ball tap for a water tank provided with a pilot valve, which is opened and closed by a float floating near a water surface in a water storage tank, on a water tap body. , A water supply pipe 2 whose tip extends to near the bottom of the water storage tank 1 and is opened
The float 4 is attached to the water supply pipe 2 so as to be vertically movable using the water supply pipe 2 as a guide, and a shaft 5 arranged substantially in parallel with the water supply pipe 2 is vertically movable. An arm 8 is inserted through the end portion, the upper part of the shaft 5 is inserted into a guide cylinder 6 provided on the hydrant body 3, and an arm 8 for opening and closing the pilot valve 7 is protruded from a pilot valve 7 provided on the hydrant body 3. Then, the arm 8 and the shaft 5 protruding from the guide cylinder 6 are rotatably connected in a direction orthogonal to each other,
A clip 25 for restricting a rising movement position of the float 4 is attached to a shaft 5 located between the guide cylinder 6 and the float 4, and a plurality of locking portions are vertically arranged on the shaft 5 protruding downward from the guide cylinder 6. 26 is provided, and a locked portion 27 provided on the clip 25 is removably locked to one of the plurality of locking portions 26.

[0006]

The float 4 moves up and down along the water supply pipe 2 as the water level in the water tank 1 fluctuates. When the water in the water tank 1 is used and the water level falls, the float 4 The shaft 5 is lowered by the lowering of the float 4, and the arm 8 connected to the shaft 5 is pulled to open the pilot valve 7 and water is supplied from the water supply pipe 2 into the water storage tank 1. Further, when the water level in the water storage tank 1 rises as the water supply is performed, the rise of the water level causes the float 4 to move the water supply pipe 2.
Along with the shaft 5
Rises, the arm 8 connected to the shaft 5 returns to the normal position, the pilot valve 7 is closed, and the supply of water into the water storage tank 1 is stopped. In addition, the upper limit position of the rising float 4 can be easily changed by changing the height of the clip 25 by changing the locking position of the locked portion 27 to the locking portion 26.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a sectional view. In the figure, reference numeral 3 denotes a water faucet main body, which is constituted by a water supply part 9, a water discharge part 10, and a water passage 11 connecting these. In addition, hydrant body 3
An opening 12 communicating with the water passage 11 is provided at the front end, and a main valve seat 13 coaxial with the opening 12 and smaller in diameter than the opening 12 is provided. The opening 12 is closed by the lid 14. The main valve body 15 is provided between the lid 14 and the main valve seat 13. The cover 14 is fixed by a cap nut 16 screwed around the outer periphery of the opening 12, and the main valve body 15 is disposed between the cover 14 and the opening 12.
3 relatively. Here, the main valve element 1
5 is formed of an elastic member such as a rubber plate. The lid 14 is formed in a concave shape facing the main valve body 15, and a pressure chamber 17 is formed behind the main valve body 15. A small pilot hole 18 is formed in the lid 14, and the pressure chamber 17 and the outside of the water tap main body 3 are communicated through the pilot hole 18. Pilot valve seat 19 at opening edge
Are formed in a protruding state. Further, the lid 14 is provided with an arm mounting portion 20 having a pair of support pieces 20a facing each other on the outer surface of the lid 14 with the pilot valve seat 19 interposed therebetween. The upper end of the arm 8 is axially mounted between the support pieces 20a, and a pilot valve body 22 is provided on the front end surface below the axial mounting portion 21 with respect to the pilot valve seat 19. 7 is opened and closed. Further, the arm 8 once extends laterally so as to go around the hydrant main body 3 from the arm mounting portion 20, then extends rearward, and is connected to the shaft 5 via the connection pin 23 as shown in FIG. . A shaft 5 arranged substantially parallel to the water supply pipe 2 is inserted into an end of a float 4 attached to the water supply pipe 2 so as to be movable up and down. The tip that is inserted and protrudes above the guide cylinder 6 is rotatably connected to the end of the arm 8. A plurality of locking portions 26 are provided at an intermediate portion of the shaft 5 in upper and lower stages. The locking portion 26 is connected to the shaft 5
A projection 25a is formed to project laterally at a predetermined interval along the longitudinal direction of the bracket, and a clip 25 as shown in FIG. Have been. Reference numeral 33 denotes a float stopper for preventing the float 4 from falling off. The clip 25 is constituted by a frame 25a provided with an opening through which the shaft 5 is inserted at the center, and a locking portion 2 provided on the shaft 5 near one end.
6 is formed along the outer diameter of the fixing opening 2. The fixing opening 2 is provided near the other end and communicates with the moving opening 28 and has an opening area smaller than that of the moving opening 28.
9 are provided. As shown in FIGS. 6 and 7, small projections 30 are provided on the inner surface of the moving opening 28 opposite to the inner surface of the moving opening 28, and FIGS. As shown in FIG. 3, a large projection 31 is formed which is engaged with a concave groove 26b between the vertically adjacent projections 26a forming the locking portion 26.

When the height position of the clip 25 is changed, the clip 25 is moved so that the shaft 5 is positioned in the moving opening 28 as shown in FIG. The height position can be freely adjusted by moving it up and down. Here, a small protrusion 30 is provided on the inner side surface of the moving opening 28, and the small protrusion 30 is slightly in contact with the tip corner of the protrusion 26a as shown in FIG. Therefore, even if the user releases his / her hand from the clip 25 in a state where the height position is changed, the clip 25 stops at a predetermined height without falling down. Then, after adjusting the height position, the clip 25 is moved so that the shaft 5 is positioned in the fixing opening 29 as shown in FIG. Protrusion 31
Are locked in the concave grooves 26b between the projections 26a as shown in FIG. 9, so that the clip 25 is fixed at a predetermined height. Then, the clip 25 is fixed by the locking portion 26 located on the lower side, so that the float 4
Can be set low, and it is possible to cope with the case where the height position of the float 4 is lowered and the water level in the water storage tank 1 is set low as shown in FIG. Further, the clip 25 is provided by the locking portion 26 located on the upper side.
Is fixed, the upper limit position of the float 4 can be set high, and as shown in FIG. 4B, the height position of the float 4 is raised to set the water level in the water storage tank 1 high. It is possible to respond to. The float 4 is attached to the water supply pipe 2 so that the water supply pipe 2 is inserted into the through hole 4a, and moves up and down along the water supply pipe 2.

When the water level in the water storage tank 1 drops and the float 4 descends, the arm 8 rotates to open the pilot valve 7 and water supply is started. When the arm returns to the original position by the buoyancy, the pilot valve 7 is closed and the water supply is stopped. FIG.
0, FIG. 11 shows the operation state of the float 4 due to the water level fluctuation,
FIG. 10 shows a state when the water level is falling, and FIG. 11 shows a state when the water level is rising.

The operation of the above-mentioned ball tap is basically the same as that of a conventional pilot type ball tap. More specifically, when the float 4 descends due to a decrease in the water level in the water storage tank 1, the arm 8 is moved through the shaft 5 The pilot valve 7 moves downward to open, and the water in the pressure chamber 17 is discharged. As a result, the pressure on the primary side of the water passage 11 becomes larger than the pressure in the pressure chamber 17, and the main valve body 15 is
, The valve opens and the water on the primary side flows to the secondary side,
Water is supplied from the water discharge section 10 into the water storage tank 1 via the water supply pipe 2.

When the float 4 rises due to the rise in the water level in the water storage tank 1, the arm 8 moves upward through the shaft 5, the pilot valve 7 closes, and the pressure in the pressure chamber 17 becomes higher than the primary side. The main valve body 15 is pressed against the main valve seat 13 to stop water supply. At this time, the force applied to the pilot valve 7 is much smaller than the pressure on the primary side due to the relationship of the hole diameter, and the size of the float 4 can be reduced as compared with the method of directly suppressing the pressure on the primary side.

[0012]

As described above, according to the present invention, a water supply pipe whose leading end extends to near the bottom of a water storage tank and is opened from a water faucet main body, and is vertically movable with the water supply pipe as a guide. , And a shaft arranged substantially parallel to the water supply pipe is inserted into the end of the float so as to be movable up and down, and the upper part of the shaft is inserted into a guide cylinder provided in the water faucet main body. An arm for opening and closing the pilot valve is protruded from a pilot valve provided on the arm, and this arm and a shaft protruding from the guide cylinder are rotatably connected in a direction orthogonal to the arm. Attach a clip that restricts the rising movement position of the float to the shaft that is located at the upper end of the shaft, and provide a plurality of locking portions in upper and lower stages on the shaft that protrudes below the guide cylinder. Any of the locking parts Floats can be placed together with the water supply pipes in the installation area of the water supply pipe, which was previously dead space, and the direction of movement of the floats can be adjusted in the vertical direction along the water supply pipe. The space occupied by the movement of the float can be reduced because of the movement of the float, and the ball tap itself can be reduced in size.
The ball tap can be mounted with less restrictions such as the size and shape of the water storage tank and the mounting position of other members. The part for setting the height position of the float is provided in the middle part of the shaft, and the height position of the float can be adjusted by this part, so using existing members A part for adjusting the height position of the float can be formed, so that there is no need to provide a separate space for adjusting the height of the float, and the height of the float can be easily adjusted while reducing the size. You can do it.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing one embodiment of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is an exploded perspective view showing a connection state of the shaft and the arm in the same.

4 (a) is a partial side view showing a state where the upper limit position of the float when the float is raised is set lower, and FIG. 4 (b) is a partial side view when the float is raised. FIG. 6 is a partial side view when the upper limit position is set high.

5A and 5B show the clip of the above, wherein FIG. 5A is a half sectional view seen from the top side, FIG. 5B is a half sectional view seen from the front side, and FIG. FIG.

FIG. 6 is a partial plan view showing a movable state of the above clip.

FIG. 7 is a sectional view taken along the line II in FIG. 6;

FIG. 8 is a partial plan view showing a fixed state of the clip of the above.

FIG. 9 is a sectional view taken along the line 2-2 in FIG. 8;

FIG. 10 is a side view showing an operation state of the above-mentioned float, and showing a state of being lowered.

FIG. 11 is a side view showing an operation state of the above-mentioned float, and showing an ascending state.

FIG. 12 is a partial cross-sectional view of a conventional example, partially cut away.

FIG. 13 is an overall configuration diagram of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water storage tank 2 Water supply pipe 3 Water tap main body 4 Float 5 Shaft 6 Guide cylinder 7 Pilot valve 8 Arm 25 Clip 26 Lock part 27 Lock part

Continuation of the front page (72) Inventor Yasuo Maeda 1048 Kadoma, Kadoma, Osaka Pref. Matsushita Electric Works, Ltd. (56) References JP-A-59-117972 (JP, A) (58) Fields surveyed (Int. Cl. ⁶ , DB name) E03D 1/33 F16K 31/26

Claims (1)

(57) [Claims] 1. A water tap for a pilot-type water tank provided with a pilot valve, which is opened and closed by a float floating near a water surface in a water storage tank, on a water tap main body. A float is attached to the water supply pipe so that it can be moved up and down using the water supply pipe as a guide, and a shaft arranged almost in parallel with the water supply pipe is vertically movable at the end of the float. The upper part of the shaft is inserted through the guide cylinder provided on the hydrant body, and an arm for opening and closing the pilot valve is provided by a pilot valve provided on the hydrant body. The protruding shaft is connected rotatably in the direction orthogonal to the shaft, and a clip that restricts the rising movement position of the float is attached to the shaft located between the guide cylinder and the float, and projects downward from the guide cylinder. A plurality of engaging portions provided on a shaft to be stacked in upper and lower stages, and a locked portion provided on a clip is removably engaged with any of the plurality of engaging portions. Ball tap.