JP2547311Y2 - 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-type ball tap for a water tank.

[0002]

2. Description of the Related Art Conventionally, ball taps for a water tank provided in a water tank 1 have various structures.
For example, there is one as shown in FIG. This is provided with a pilot valve 3 which is opened and closed by a float 2 floating on the water surface in a water storage tank 1 at a front portion of a water tap main body 4,
A pilot valve 3 is provided at a rear end of an arm 7 extending forward with a rear portion pivotally attached to the hydrant main body 4, and a substantially spherical float 2 is attached to a front end of the arm 7 by screwing and coupling. It has a structure. Then, with the fluctuation of the water level in the water storage tank 1, the float 2 moves up and down while rotating around the shaft attachment portion of the arm 7, so that the pilot valve 3 is opened and closed to supply water into the water storage tank 1. It is done automatically.

[0003]

However, in the conventional example having the above structure, the float 2 is attached to the front of the water tap main body 4 via the arm 7, so that the water tap water main body 4 is not provided.
There is a problem that a space for arranging the float 2 is required in front, and the ball tap itself becomes large.
Is pivotally mounted on the hydrant main body 4 and rotates around the pivoted portion as the water level rises and falls. Therefore, other members, such as the siphon tube 50 and the cleaning lever 51, are provided within the rotational movement range in front of the hydrant main body 4.
If the arm 52 or the chain 53 attached to the arm 52 is provided, the float 2 comes into contact with these members and the movement is hindered, which hinders the normal operation. However, there is a problem that the arrangement is greatly restricted.

[0004] The present invention solves the above-mentioned problem, and the floating body is moved up and down by utilizing the minimum space of the floating body itself by utilizing the dead space below the water faucet main body. An object of the present invention is to provide a ball tap for a water tank with a small installation restriction.

[0005]

According to the present invention, in order to achieve the above object, a pilot valve 3 which is opened and closed by the movement of a shaft 6 connected to a float 2 floating near a water surface in a water storage tank 1 is a water tap. In the pilot-type water tank ball tap provided on the main body 4, a water supply pipe 5 whose tip extends to near the bottom of the water storage tank 1 and is opened is drawn out from the water tap main body 4, and can be vertically moved using the water supply pipe 5 as a guide. The water supply pipe 5 is passed through the float 2 so that a shaft 6 disposed substantially parallel to the water supply pipe 5 is inserted into the end of the float 2 so as to be vertically movable.
A clip 10 for adjusting the height of the float 2 is arranged on the upper surface of the float 2, and all or most of the shaft 6 and the clip 10 are positioned substantially within the outline of the float 2 in plan view.

[0006]

The float 2 moves up and down along the water supply pipe 5 with the fluctuation of the water level in the water storage tank 1. When the water in the water storage tank 1 is used and the water level falls, the float 2 is moved. The shaft 6 is lowered by the lowering of the float 2, and the pilot valve 3 is opened in conjunction with the movement of the shaft 6, and water is supplied from the water supply pipe 5 into the water storage tank 1. Also, 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 2 to rise along the water supply pipe 5, and the rise of the float 2 causes the shaft 6 to rise. The pilot valve 3 is closed in conjunction with the movement of the shaft 6, and the supply of water into the water storage tank 1 is stopped. Then, the height of the water level can be adjusted by changing the mounting position of the clip 10 and changing the height position of the float 2 fixed to the shaft 6. In addition, all or most of the shaft 6 for transmitting the movement of the float 2 that fluctuates with the water level to the pilot valve 3 and the clip 10 for adjusting the height of the float 2 are viewed in plan view. By placing them within the outline of the above, these members fall within the vertical movement range of the float 2 and can be made compact.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments. The water tank ball tap housed and arranged in the water tank 1 is connected to a water tap body 4 having a plurality of water passages formed therein as shown in FIGS. 1 and 2, and to one end of the water tap body 4. The main body is constituted by a joint member 60 to be mounted and the float 2 attached to a water supply pipe 5 projecting downward from the water tap main body 4 so as to be vertically movable.

The joint member 60 connected to one side of the hydrant body 4 is formed of a metal material, and a connecting flange 61 provided at one end is connected to a connecting flange 61 provided at one end of the hydrant body 4. By being fixedly connected to the flange 4c with the fixing tool 55, it is connected and fixed to the water faucet main body 4. Joint member 6 provided with connecting flange 61
At one end of the joint member 60, use a tool such as a wrench.
Is provided, and a connecting pipe 63 having a smaller diameter than the grip portion 62 is protruded from the grip portion 62 toward the side. A screw portion 63a is provided on the outer peripheral surface of the connection pipe 63, and a pair of rubber packing 64, a washer 65, and a nut 66 are attached to the screw portion 63a. Then, the screw portion 63a is connected to the side wall 1 of the water storage tank 1.
2 is inserted into the mounting hole 1b provided in the hole a, and the nut 66 is tightened, so that the side wall 1a of the water storage tank 1 is sandwiched between the pair of rubber packings 64 to ensure watertightness, as shown in FIG. So that the joint member 60 is
The water faucet main body 4 is set in the water storage tank 1 by this. Here, when the joint member 60 is attached to the side wall 1a of the water storage tank 1 by tightening the nut 66, the joint member 60 is tightened by holding the gripping portion 62 with a tool so as not to rotate the nut 66. It is designed to be attached to the side wall 1a of the water storage tank 1. A packing 67 provided with a net 67a for rectification and dust removal is mounted at the end of a connecting pipe 63 protruding outward from the water storage tank 1 in the mounted state. The connecting pipe 63 is connected to a water supply pipe (not shown) outside the water storage tank 1.

The water tap main body 4 is formed of a resin material such as a synthetic resin, and has a main body 4a having a plurality of flowing water passages formed therein, and a case 4b detachably attached to a lower portion of the main body 4a. And constitute the subject. A water passage 20 communicating with the connection pipe 63 of the joint member 60 is provided at one end of the main body 4a, and the inside of the body 4a communicates with the water passage 20 so as to be orthogonal to the water passage 20 as shown in FIG. An opening 21 is provided. Further, a main valve seat 22 which is concentric with the opening 21 and has a smaller diameter than the opening 21 is provided, and the opening 21 is closed by the main valve element 24. Lid 23
Is fixed by a cap nut 25 screwed to the outer periphery of the opening 21, and the main valve body 24 is relatively held between the lid 23 and the opening 21 with respect to the main valve seat 22. Here, the main valve body 24 is formed of an elastic member such as a rubber plate. The lid 23 is formed in a concave shape facing the main valve element 24, and a pressure chamber 26 is formed behind the main valve element 24. A small-diameter diaphragm hole 35 is provided at an end of the main valve body 24, and the opening 21 communicates with the pressure chamber 26 through the diaphragm hole 35. A small pilot hole 27 is formed in the lid 23. The pressure chamber 26 communicates with the outside of the water tap main body 4 through the pilot hole 27, and the pilot hole 27 is provided on the outer surface side of the lid 23. Pilot valve seat 2 at opening edge
8 is formed in a protruding state. Further, the lid 23 is provided with an arm mounting portion 29 having a pair of support pieces 29a opposed to each other on the outer surface of the lid 23 with the pilot valve seat 28 interposed therebetween. The upper end of the arm 7 is axially mounted between the support pieces 29a, and a pilot valve body 31 is provided on the front end surface below the axial mounting portion 30 with respect to the pilot valve seat 28. 3 is opened and closed. The support piece 29a is provided with a notched bearing portion 29b having an upper end cut out. When the arm 7 is connected, a locking projection 7 integrally protruded from the end of the arm 7 is provided.
a can be easily connected by elastically fitting a into the notch bearing portion 29b from the upper opening. In this case, a stopper piece 29c is provided to face the opening of the notch bearing 29b, and the stopper piece 29c prevents the locking projection 7a from coming off. When the locking projection 7a is locked, the locking projection 7a is pushed in. Thus, the stopper piece 29c is elastically deformed and resiliently inserted. When the stopper piece 29c is removed, the stopper piece 29c can be elastically deformed and pulled out by pulling up the locking projection 7a. Further, when the arm 7 is detached from the arm attachment portion 29, it can be easily removed by pulling it upward. The arm 7 once projects sideways from the arm mounting portion 29 so as to go around the hydrant main body 4, and then extends rearward, and as shown in FIG. 1, connects the connection pin 32 integrally protruded from the rear end to the shaft 6. Is connected to the shaft 6 by connecting to the upper connection hole 6a. Here, the shaft 6 is vertically movably inserted into a shaft insertion hole 80 provided in the water tap main body 4. A retaining projection 32a is provided at a leading end of the connecting pin 32 integrally projecting from the rear end of the arm 7, and a retaining projection is provided at a connecting hole 6a provided at an upper portion of the shaft 6. A locking hole 6b into which the second protrusion 32a is inserted is provided.
The arm 7 is rotated after inserting the connection pin 32 into the connection hole 6a so as to engage with the shaft 7a so that the arm 7 is rotatably connected to the shaft 6 via the connection pin 32 in a state where the arm 7 is prevented from coming off. It has become so. That is, as shown by the imaginary line in FIG. 8, with the arm 7 positioned, the retaining projection 32a and the connection pin 32 are inserted into the diaper-shaped connection hole 6a and the locking hole 6b. The arm 7 is connected to the shaft 6 so as not to come off by setting the posture of the arm 7 as shown by a solid line. In this state, the locking projection 7a at the tip of the arm 7 is resiliently inserted into the notch bearing portion 29b from above to pivotally support the arm 7 to the lid 23 side. Removal of the lid 23 is performed in the reverse order. In this case, the tip of the arm 7 on the side of the lid 23 is pulled up to remove the locking projection 7a from the notch bearing 29b,
By rotating and removing the cap nut 25, maintenance, inspection, replacement, and the like of the pilot valve 3 can be performed. Even when the locking projection 7a is removed from the notch bearing portion 29b, the arm 7 can be used as shown in FIG. Approximately 180 from the position of the solid line as an imaginary line
Rotation of the retaining projection 32a and the connection pin 32 by turning the retaining pin 32 and the connection pin 32 out of the connection hole 6a and the locking hole 6b will not release the pivotal support relationship. The arm 7, the shaft 6, and the float 2 connected to the shaft 6, which will be described later, are prevented from falling to the bottom of the water storage tank 1 by being hooked on the upper opening of the water tank 1. Therefore, when replacing the float 2 or the like, the arm 7 is further rotated as shown by the imaginary line in FIG. 8, and in this state, the retaining projection 32a and the connection pin 32 are connected to the connection hole 6a in the form of a round hole.
The shaft 6 can be removed from the arm 7 by pulling it out of the arm 7 and the locking hole 6b.

A plurality of locking claws 70 are provided on the upper part of the case 4b which is detachably attached to the lower part of the main body 4a. The locking claws 70 are provided on the lower part of the main body 4a. The case 4b can be attached to the lower part of the main body 4a without using a fixing tool such as a screw by locking to the base 71. At the lower part of the case 4b, a connecting pipe 19 for connecting the water supply pipe 5 is projected downward, and the upper part of the connecting pipe 19 is inserted into the connecting pipe 19, and the water supply pipe 5 is connected and fixed to the case 4b. Have been.

A shaft 6 arranged substantially in parallel with the water supply pipe 5 is inserted into an end of the float 2 attached to the water supply pipe 5 so as to be movable up and down. It is rotatably connected. An air supply port 40 is formed in the case 4b attached to the lower part of the main body 4a so as to communicate with the water supply pipe 5. The air supply port 40 communicates with the upper part of the water supply pipe 5 through a communication space 41 provided in the lower part of the case 4b. Here, the communication space 41 is formed obliquely upward, so that the supply water supplied from the water tap main body 4 to the water supply pipe 5 flows backward and flows out of the air supply port 40 as much as possible. . When water is supplied from the hydrant main body 4 to the water supply pipe 5, air is drawn into the communication space 41 from the air supply port 40 by the supply water that flows from the hydrant main body 4 toward the water supply pipe 5 vigorously. Air is mixed in the supply water supplied into the water supply pipe 5, and the air is discharged from the water supply pipe 5 into the water storage tank 1 together with the supply water.

The shaft 6 formed of a square bar is provided with a plurality of locking portions 8 at upper and lower stages at predetermined intervals along the longitudinal direction of the shaft 6. The locking portion 8 is formed by drilling through holes 8 a in multiple stages vertically so as to be orthogonal to the longitudinal direction of the shaft 6. In the illustrated embodiment, the shaft 6 is shown as being formed of a square bar, but is not limited to this, and may be formed of a round bar. It may be.

As shown in FIG. 7, the float 2 is formed in a box shape having an open lower surface, and has a hollow portion 2a therein and an opening portion 2 which is opened downward at a lower portion.
b is provided. A cutout 2c cut out upward from the lower edge is provided in a part of the peripheral wall of the float 2. Here, the float 2 slidably attached to the water supply pipe 5 is attached to the water supply pipe 5 so as to receive bubbles discharged together with the water supply from the water supply pipe 5 as shown in FIG. Installed. A water supply pipe insertion hole 33 into which the water supply pipe 5 hung down from the water tap main body 4 is inserted is provided at an end of the float 2, and the water supply pipe insertion hole 33 is provided adjacent to the water supply pipe insertion hole 33. Is provided with a concave groove 11a through which the shaft 6 is inserted. The concave groove 11a forms a shaft insertion hole 11. The upper surface of the float 2 is almost flat except for a part thereof, and a pair of projections 9a project upward from the opening edge at the upper end of the concave groove 11a. A locking hole 12 having substantially the same diameter as the through hole 8a formed in the shaft 6 is formed in each projection 9a.

As shown in FIG. 6, a clip 10 for connecting and fixing the float 2 and the shaft 6 includes a substrate 14 and a substrate 1.
4 and a side plate 17 projecting from both ends of the substrate 14 having substantially the same length as the locking rod 15 so as to be substantially parallel to the locking rod 15. ing. A non-slip portion 50 is formed at the base end of each side plate 17 so that the clip 10 can be easily grasped by hand. An inclined portion 34 is provided on the inner side surface at the tip of the side plate 17, and the locking claw 16 is provided at the tip of the side plate 17 by the inclined portion 34. The clip 10 inserts the locking rod 15 into the locking hole 12 formed in the projection 9a and the through hole 8a formed in the shaft 6, and the locking claw 16 is provided on the other projection 9a. By being locked to the stop projection 13, the float 2 and the shaft 6 are attached to the projection 9a in a connected state. Here, the locking hole 12 of the projection 9a and the shaft 6
The shaft 6 and the floating member 2 are connected by the clip 10 by inserting the locking rod 15 into the locking hole 12 and the through hole 8a so as to match with the through hole 8a. The position of the through hole 8a to be aligned with the hole 12 is selected at an arbitrary position to match the position of the locking hole 12, and the locking rod 15 is inserted into the through hole 8a and the locking hole 12. By doing so, the height position of the float 2 can be set to an arbitrary height position.

[0015] Of the pair of projections 9a provided on the float 2, one of the projections 9a is provided with a locking recess 5 in which a locking claw 16 provided on a side plate 17 is locked as shown in FIG. 7 (c).
1 is provided at the base of the locking recess 51.
2 are provided. A clip 10 is attached to the other protrusion 9a.
Is provided with a locking step 53 which is engaged with the locking claw 16 in a state where the locking claw 16 is prevented from coming off when the user pulls outward. here,
As shown in FIG. 7, a cutout 54 which is opened upward is provided at an upper portion of one of the protrusions 9a to align the through hole 8a of the shaft 6 with the locking hole 12 of the protrusion 9a. In this case, the positions of the through hole 8a and the locking hole 12 are
0 is obliquely seen from above through the notch 54 even when the mounting hole 0 is attached.
2 can be easily and visually determined.

When the float 2 is connected to the shaft 6, the locking claw 16 of the side plate 17 is locked to the projection 9a by inserting the locking rod 15 into the through hole 8a and the locking hole 12. Thus, the shaft 6 and the float 2 are connected, and the float 2 can be fixed at an arbitrary height.
When the height position of the float 2 is changed, the clip 1 is gripped by grasping the non-slip portion 50 provided at the base end of the side plate 17 by hand.
0 is pulled outward, the locking bar 15 of the clip 10 is pulled out, and the through hole 8a of the shaft 6 and the projection 9
The connection with the locking hole 12 is released, and the float 2 is in a free state. In this state, the locking holes 12 provided in each side plate 17 are locked in a state where the locking holes 12 are provided in the locking step portions 53 provided in the projections 9a. In this state, the connection between the shaft 2 and the shaft 2 is released and the shaft 2 is attached to the float 2. Here, an inclined portion 52 is provided at the base end of the engaging concave portion 51 provided on the projection 9a. Due to the existence of the inclined portion 52, the engaging claw 1 can be pulled only by pulling the clip 10 outward.
6 is easily detached from the locking recess 51. When the height of the float 2 is changed to connect the float 2 and the shaft 6 again, the through hole 8a of the shaft 6 and the projection 9
a by simply pushing the clip 10 inward while aligning the position with the locking hole 12 of FIG.
And the float 2 can be easily connected without taking time, so that the clip 10 is not dropped into the water storage tank 1.

When the height position of the float 2 is changed, the float 2 is held at an arbitrary height. In this state, the locking hole 12 of the projection 9a and the through hole 8a of the shaft 6 are aligned. The locking rod 15 of the clip 10 is inserted into the through hole 8a and the locking hole 12, and the locking claw 16 of the side plate 17 is locked to the locking projection 13 provided on the projection 9a. The shaft 6 can be connected and fixed. The height of the float 2 can be lowered by connecting and fixing the float 2 and the shaft 6 with the clip 10 at the portion of the through hole 8a located on the lower side of the shaft 6,
Thus, the water level in the water storage tank 1 can be set to a low level, and the clip 10 connects the float 2 to the shaft 6 at the through hole 8a located on the upper side of the shaft 6. By fixing, the height position of the float 2 can be raised, and thereby the water level in the water storage tank 1 can be set to be high.

By the way, in the present invention, as shown in FIG. 6, the shaft 6 and the clip 10
Are located within the outline of the outline. Thus, the shaft 6 and the clip 10 are substantially within the outline of the float 2.
By placing all or most of the shafts, the shaft 6 and the clips 10 are positioned by utilizing the space necessary for the movement of the float 2 that moves up and down, thereby achieving compactness.

When the water level in the water storage tank 1 drops and the float 2 descends, the arm 7 rotates to open the pilot valve 3 to start water supply, and the water level rises and the float 2 When the arm 7 returns to the original position due to the buoyancy, the pilot valve 3 is closed and the water supply is stopped. Here, the float 2 is in a state where the lower part is open, but since it moves vertically in the vertical direction along the water supply pipe 5, air is always kept in the internal cavity 2a. In addition, air bubbles discharged from the water supply pipe 5 in accordance with water supply from the water supply pipe 5 are replenished to the position of the notch 2c of the cavity 2a, and the float 2 always has a stable buoyancy. It can be made to be. Further, the excess air, which continues to be supplied to the cavity 2a with the supply of water into the water storage tank 1, is discharged to the outside from a part of the peripheral wall provided with the notch 2c. 2 does not swing back and forth and right and left, so that the posture of the float 2 is stabilized, and smooth up and down movement is achieved.

The operation of the above-mentioned ball tap is basically the same as that of the conventional pilot-type ball tap. However, when described in detail with reference to FIG. 5, the water supply portion is located at the back of the portion D near the center in FIG. Then, the water bent to the left passes through the gap E between the main valve body 24 and the main valve seat 22, flows as indicated by the arrow, and is supplied from the water supply pipe 5 into the water storage tank 1. Here, a part of the water passes through the diaphragm hole 35 and the pressure chamber 26.
And exits from the pilot hole 27 as well.

Now, the pilot hole 27 is inserted into the pilot valve body 3.
When closed with 1, the pressure in the pressure chamber 26 rises, and the main valve body 24 is pressed rightward on the paper. This eliminates the gap E and stops the flow of water in the direction of the arrow. Here, the pressure chamber 2
6 and the upstream portion D are the same because they communicate with each other through the diaphragm hole 35.
Therefore, the main valve body 24 is pressed to the right side in the drawing.

Next, when the pilot hole 27 is opened, the water in the pressure chamber 26 is drained from the diaphragm hole 35 and the pressure in the pressure chamber 26 is reduced, so that the main valve body 24 is pushed to the left in the drawing and the gap E is secured. Is done. Therefore, when the water supply into the water storage tank 1 is almost completed and the float 2 rises and the pilot valve 3 closes the pilot hole 27, the water discharge from the water supply pipe 5 stops, and the water in the water storage tank 1 is used. When the water is lost, the float 2 is lowered, the pilot hole 27 is opened, and water is supplied from the water supply pipe 5 into the water storage tank 1.

[0023]

As described above, according to the present invention, a water supply pipe whose tip extends to near the bottom of a water storage tank is opened from a water faucet main body, and the water supply pipe is vertically movable using the water supply pipe as a guide. Is passed through the float, 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 a clip for adjusting the height of the float is arranged on the upper surface of the float, so that it is viewed in plan. Because all or most of the shaft and clips are located within the approximate outline of the float, the float can be moved up and down using the dead space below the hydrant main body, and compactness can be achieved. In addition, the height of the float can be easily adjusted without requiring a large space, and the float can be connected to an arbitrary height position of the shaft by the clip. Duty The pilot valve can be opened and closed by the vertical movement of the float through the shaft by connecting to the height position of the float, and the float can be reliably operated at the set water level to adjust the water level. Things. Moreover, in the present invention, since all or most of the shaft and the clip are positioned within the outline of the float in plan view, the shaft and the float for transmitting the vertical movement of the float as the opening and closing of the pilot valve. The clip for adjusting the height of the float fits in the space required for the vertical movement of the float,
It is more compact.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is a side view of the same, partially broken away.

FIG. 3 is a front view showing the operation of the above.

FIG. 4 is a plan view of the same.

FIG. 5 is a cross-sectional view showing an internal structure of the water tap body according to the first embodiment.

FIG. 6 is a sectional view taken along line AA in FIG. 2;

7A and 7B show a float, and FIG. 7A is a front view,
(B) is a side view, (c) is a plan view, and (d) is a bottom view.

FIG. 8 is an exploded perspective view showing a state before an arm is attached.

FIG. 9 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water storage tank 2 Float 3 Pilot valve 4 Water tap main body 5 Water supply pipe 6 Shaft 10 Clip

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Masahiko Kurita 1048 Kadoma Kadoma, Osaka Pref. JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A pilot-type water tank ball tap having a hydrant body and a pilot valve which is provided with a pilot valve which is opened and closed by the movement of a shaft connected to a float floating near a water surface in the water tank. The water pipe that extends and opens is drawn out from the water tap body, and the water pipe is penetrated through the float so that it can be moved vertically using the water pipe as a guide, and the shaft that is arranged substantially parallel to the water pipe can be moved up and down. A water tank formed by inserting a clip for adjusting the height of the float on the upper surface of the float, and positioning all or most of the shaft and the clip within substantially the outline of the float in plan view. Ball tap.