JPH0130977B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a water tank with a ball tap, in particular a pilot type ball tap.

(Prior Art) A water tank equipped with a pilot-type ball tap is already known, but since it has a pilot valve in addition to the main valve, it has a large number of parts and is complicated and troublesome to assemble. When using a diaphragm, it is difficult to attach it, so if the diaphragm is damaged, it is difficult to replace or repair it while the ball tap body is attached to the water tank.

(Problems to be Solved by the Invention) A problem to be solved by the present invention is to make the main valve and the pilot valve removable from the ball tap body in a cartridge manner.

(Means for Solving the Problems) The technical means taken by the present invention to solve the above problems is to install a main valve body consisting of a diaphragm in the middle of the main flow path connecting the inlet and outlet of the ball tap body. A pressure chamber is formed between the main valve body and the bottom of the lid, and the pilot valve is connected to the pilot flow path. A pilot valve seat is formed at the bottom of the lid, and the pilot valve body is mounted on a lever that is pivoted to a support arm hanging from the lid and has a float at its tip that floats on the water surface in the water tank body.

(Function) According to the above technical means of the present invention, the main valve and the pilot valve can be assembled and mounted on the ball tap body by attaching and removing the lid to the opening provided in the ball tap body.

(Example) Hereinafter, the present invention will be described in detail based on illustrated examples.

Figures 1 to 7 show one embodiment, and A in the figures is a water tank main body. In the drawings, this water tank main body is an example of a tank for flushing toilet bowls, and a drain valve 1 provided at the bottom is used as a water tank main body. It connects to the toilet bowl C, and the lid 2 installed at the top has a gooseneck-shaped hand wash pipe 3.
It is equipped with

The drain valve 1 consists of a valve seat member 4 attached to the bottom wall A ₁ of the water tank main body A, and a corresponding valve body 5 that is pivotally connected to the valve seat member 4 so as to be freely slidable. A chain 7 and a lever 8 are attached to the operating handle 6 attached to an appropriate location on the side wall _A2 of the water tank body A.
is connected to the seat surface 4a of the valve seat member 4 by being pulled up by operating the operating handle 6.
The drain valve 1 can be opened by separating the valve. Further, the valve seat member 4 is integrally provided with an overflow pipe 9 so as to communicate with the downstream side of the seat surface 4a.

B is the ball tap body, 10 is its inlet, 1
Reference numeral 1 denotes an outflow port, and 12 a main flow path connecting these two ports 10 and 11. An opening 13 that opens to the lower surface of the main body B is formed in the middle of the main flow path 12, and above this opening 13, an opening 13 is formed. Concentrically with this,
A main valve seat opening 15 having a smaller diameter than this is provided with its outflow side facing the opening 13 side, and the main valve seat 14 is formed by the outflow side opening end.

In the opening 13, a lid 1 is provided with a main valve body 17 constituting the main valve a corresponding to the main valve seat 14.
6 can be installed.

The main valve body 17 is made of a diaphragm made of an elastic material and formed into a disk shape, and a washer 17a made of a hard material is embedded and sealed in the center part to prevent deformation of this part, and the peripheral part is made thick. The annular part sandwiched between these two parts is made thin so that it can be easily deformed.
The thick peripheral portion is clamped relative to the main valve seat 14 by the lid 16 and a cap nut-shaped presser fitting 61 screwed onto the top of the lid 16.

The central part of the main valve body 17, into which the washer 17a is inserted, has a slightly larger area than the part surrounded by the main valve seat 14.
A small screw 38 having a hole 20 is inserted and tightened, and a cleaning pin 36 is loosely inserted into the small hole 20. The cleaning pin 36 has bulges 36' formed at both ends to prevent it from falling out of the small hole 20.

On the other hand, the lid 16 is located at the opening 1 of the ball tap body B.
3 and is configured to be fixed to the opening 13 by a cap nut 18 screwed onto the outer periphery of the opening 13, and the upper surface facing into the ball tap main body B has a recess 21 with an appropriate width left at the periphery. A concave portion 22 for guiding the main valve body is formed, and the central portion thereof is further deepened.A pressure chamber 23 is formed behind the main valve body 17 by these concave portions 21 and 22.

The inner peripheral surface of the recess 22 and a tightening member 39 such as a nut for tightening the machine screw 38 are formed so that the outer diameter of the tightening member 39 and the inner diameter of the recess 22 are approximately the same diameter. Guide part 4 that guides movement of body 17
1.

On the other hand, the small hole 20 of the main valve body 17 is connected to the pressure chamber 23.
The cleaning pin 36 serves to prevent the small passage 20 from being clogged with dirt and limescale.

Further, the pressure chamber 23 has a small diameter pilot channel 24 cut through the center of the bottom surface of the main valve body guiding recess 22, and communicates with the outside of the ball tap body B via this channel 24.

The pilot flow path 24 has a protruding opening edge opening toward the outer surface of the lid 16, and serves as a pilot valve seat 25.

The lid 16 also has a pilot channel 24 on its lower surface.
The support arm 26 is provided with a pair of support arms 26 facing each other with the cap nut 18 in between, and the support arm 26 extends downward through the cap nut 18 and pivots on one end of the lever rod 27.

The lever rod 27 has a pilot valve b formed on its upper surface near the shaft attachment portion corresponding to the pilot valve seat 25;
A pilot body 28 is provided which opens and closes the pilot flow path 24 by the sliding movement of a lever 27.

The pilot valve body 28 is formed by fitting and fixing an elastic material such as rubber into a recessed hole 29 on the upper surface of the lever rod 27.

Further, the lever rod 27 has a float attachment hole 30 drilled at its tip in a direction perpendicular to its axial direction, and a rod 32 protruding from the float 31 is inserted into the hole 30. It is pressed and fixed by a business 33 screwed in the axial direction from the tip of the lever 27.

Therefore, by loosening business 33, float 3
1 can be continuously adjusted and moved in the vertical direction.

Incidentally, this float 31 has an engaging part 34 for positioning that is provided on the lid 16 and the main body opening 13 and engages with each other.
Depending on the manner of engagement, the ball tap can be placed on either the left or right side in the axial direction of the ball tap main body B, and can be attached to either side of the left or right side wall _A2 of the tank.

Reference numeral 42 denotes a connector constituting an outflow portion, which is formed in a cylindrical shape, and has one end threadedly connected to the outflow port 11 of the ball tap main body B and extends in the axial direction of the ball tap main body B, and an auxiliary water supply port 43' at the other end. is opened, and an auxiliary water supply pipe 43 made of a flexible pipe is connected to the water supply port 43'.

In addition, the outflow part 42 has a hand wash water supply port 44 in the middle, and a tank water supply port 45 on the downstream side thereof.
A hand-washing water supply port 44 is connected to a hand-washing communication pipe 47 having a flexible bellows portion 46 at both ends, and the tank water supply port 45 has a water spout sufficiently connected to the port. A water discharging tool 48 having a wide water passage area is connected. A control member 49 is attached to this water discharging tool 48.

The control member 49 is composed of a combination of a rectifying plate and a net, a plurality of stacked nets, a bubbler, etc., and is configured to rectify the flow direction of the flowing water and provide resistance to the flowing water flow to equalize the flowing speed.

50 is a control body provided in the outflow portion 42;
It is formed into a cylindrical shape with a pressure receiving part 51 that is constricted in the middle, is slidably inserted into the outflow part 42, and is always biased toward the upstream side by a spring 52.

Such a ball tap is attached to the side wall _A2 of the water tank body A so as to protrude into the water tank body A.

That is, the ball tap main body B has a flange 53 on the outer peripheral surface of the intermediate part, and the inlet 10 is connected from the flange 53 to the flange 53.
This part is inserted into the mounting hole 55 made in the side wall _A2 of the water tank main body A from inside the water tank main body A, and then tightened from the outside of the water tank main body A. Screw on the nut 56,
The nut 56 and the flange 53 are attached to the side wall A ₂ in such a manner that the side wall A ₂ is clamped and clamped.

Then, connect the hand wash connecting pipe 47 to the lid 2 of the water tank body A.
The auxiliary water supply pipes 43 are connected to the overflow pipes 9 of the water tank main body A, respectively, and the inflow ports 10 are connected to the water supply pipes 58 through joint pipes 57 equipped with a flow rate adjustment section 59 inside. Connect to.

The flow rate adjustment section 59 is, for example, a throttle, an automatic flow rate control valve, a variable adjustment valve, etc., and in the illustrated example, it is a throttle made of an elastic body such as rubber and formed into an annular shape with a water passage hole 60 in the center. It is installed in the joint pipe 57 so as to block the flow path thereof, and is configured to bend when pressure of flowing water is applied to narrow the water passage area of the water passage hole 60.

Note that this flow rate adjustment section 59 is provided as necessary, and its installation location may be arbitrary.
It is not necessarily necessary to provide the valve at the ball tap body B, and the valve may be provided anywhere as long as it is on the primary side of the main valve a of the ball tap body B.

Now, open the drain valve 1 of the water tank body A,
When the water in the water storage tank body A is discharged into the toilet bowl C, the float 31 lowers as the water level falls, and the rod 3
2, the lever 27 is slid downward.

Then, the pilot valve body 28 touches the pilot valve seat 2.
5 and the pilot flow path 24 opens,
Water in the pressure chamber 23 is discharged to the outside through the flow path 24.

Therefore, the pressure on the primary side of the main flow path 12 is reduced to the pressure chamber 23.
The pressure becomes larger than the pressure of main valve body 1 due to that pressure.
7 is pushed down and away from the main valve seat 14, and the main valve a
The valve opens and the water on the primary side flows to the secondary side through the outlet 11.
The water enters the connector 42 through the handwash water supply port 44 and the handwash connection pipe 47, and is discharged from the handwash pipe 3, and the other end passes through the tank water supply port 45 and is discharged from the water spouting device 48 into the water storage tank body A. A portion of the water is further supplied to the toilet bowl C via the auxiliary water supply pipe 43 and the overflow pipe 9. This auxiliary water is used to seal the traps of siphon toilets, etc.

Water discharged from the hand washing pipe 3 flows into the water tank main body A through a hole (not shown) formed in the lid 2.

After the drain valve 1 is closed, when the water level rises due to water supply from the ball tap, the float 31 rises and the pilot valve body 28 closes the pilot flow path 24. Then main valve body 1
The volume of the pressure chamber 23 gradually increases due to the water flowing into the pressure chamber 23 from the small hole 20 of 7, and the main valve body 17 gradually rises accordingly, causing the main valve a to slowly close. , the ball tap will stop its water supply.

In the above embodiment, the main valve body 17 was composed of one diaphragm, but this main valve body 1
7 may be constituted by two diaphragms disposed between a washer 17a and a ring 40 as shown in FIGS. 8, 10, and 11.

Further, in the embodiment described above, the main valve seat 14 was formed on the ball tap body B, but as shown in FIGS. It is also possible to detachably attach a nut to the opening 13 of the ball tap main body B, and the attachment to the opening 13 of the lid 16 is not limited to the above-mentioned cap nut 18, but also a nut as shown in FIG. Alternatively, the screws 64 may be used.

In addition, 65 and 66 in FIG. 12 are the presser fittings 61, respectively.
Positioning is performed by a protrusion provided on the ball tap body B and a recess provided on the ball tap body B.

Furthermore, the small passage 20 may be a small hole formed in the main valve body 17 when the main valve body 17 is a piston valve body, a gap between the sliding surface and the main valve body 17, or a groove provided on the circumferential surface of the main valve body 17. It is also possible to configure it by, etc.

Furthermore, the guide constituting the guide portion 41 of the main valve a may optionally be a molded product 67 formed by pressing a plate material as shown in FIG. It's okay.

In addition, in FIG. 9 and FIG. 10, c is a regulating valve, which is connected to the primary side of the main valve a to control the main valve a.
When the main valve a operates in the valve-opening direction, it operates in the valve-closing direction, and when the main valve a operates in the valve-closing direction, it operates in the valve-opening direction. Machine screw 38 inserted and tightened in
The surface corresponding to the adjustment valve seat 63 is formed into a tapered surface.

Further, in the one shown in FIG. 9, the regulating valve body 62 has a structure of a piston valve body, and is constructed so that it can also serve as a guide for the main valve a.

Furthermore, in the one shown in FIG. 12, the water flow is made to flow into the main valve seat opening 15 from the outside of the main valve seat 14, and the small hole 20 is formed at the periphery of the main valve body 17 made of a diaphragm. It is set in.

(Effects) As described above, the main valve of the ball tap according to the present invention has a lid in which the main valve body made of a diaphragm is removably attached to an opening provided in the middle of the main flow path that communicates the inlet and outlet of the ball tap main body. A pressure chamber is formed between the main valve body and the inner bottom of the lid, and the pilot valve has a pilot flow path and a pilot valve seat formed at the bottom of the lid. The pilot valve body is mounted on a lever rod that is pivoted to a support arm that hangs down from the lid and has a float at its tip that floats on the water surface in the water tank body, so the main valve and pilot valve are integrated and attached to the ball tap body. It can be attached to and detached from the provided opening in a cartridge style.

Therefore, it is easy to assemble the main valve and pilot valve into the ball tap body, and the main valve and pilot valve can be easily attached and detached even when the ball tap body is attached to the water tank body, making it easy to repair and replace parts. It is convenient for

[Brief explanation of drawings]

The drawings show embodiments of the water storage tank of the present invention, and FIG. 1 is a partially cutaway front view showing the water storage tank of the present invention. Figure 2 is a longitudinal sectional front view of the ball tap with a portion cut away. FIG. 3 is a plan view of the same, with a portion cut away. Figure 4 is a vertical cross-sectional view of the float attachment part, and Figure 5 is the - of Figure 2.
Figure 6 is a vertical cross-sectional view of the main parts of the ball tap showing the state when the main valve and pilot valve are open, Figure 7 is a vertical cross-sectional view of the tank water inlet of the ball tap, and Figure 8 is a cross-sectional view along the line. Figures 1 through 12 are longitudinal sectional views showing other embodiments of the main part of the ball tap. In the figure, A...Water tank body, B...Ball tap body, a...Main valve, b...Pilot valve, 10...
...Inflow part (inflow port), 11... Outflow part (outflow port),
12...Main passage, 14...Main valve seat, 15...Main valve seat opening, 16...Lid, 17...Main valve body, 20...Small passage, 23...Pressure chamber, 24...Pilot flow 25...Pilot valve seat, 26...Support arm,
27... Lever lever, 28... Pilot valve body, 31
...Float, 61...Press fitting.

Claims (1)

[Claims] 1. In a water tank equipped with a pilot-type ball tap, the main valve of the ball tap has a main valve body formed of a diaphragm, and is detachable from an opening provided in the middle of a main flow path connecting an inlet and an outlet of the ball tap main body. A pressure chamber is formed between the main valve body and the bottom of the lid, and the pilot valve has a pilot passage and a pilot valve seat attached to the bottom of the lid. 1. A water storage tank, characterized in that the pilot valve body is mounted on a lever lever having a float attached to a support arm hanging from a lid, and having a float at its tip that floats on the water surface within the water storage tank body.