JPH0141811Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a toilet bowl cleaning tank device that is equipped with a ball tap that opens and closes a valve in response to the water level and supplies flushing water to the toilet bowl.

[Prior art]

As a conventional toilet cleaning tank device,
There is something like the one described in Publication No. 16945.

As shown in Fig. 1, this system has a ball tap inside the tank 100, and the water supply pipe 101 is equipped with a main valve 103 that opens and closes the flow path in conjunction with a float 102 to keep the water level constant. . This main valve 1
03, there are two outlets 104 into the tank 100 and into the rim water passageway (not shown) of the toilet body.
A switching valve 106 is provided to switch the flow path to the tank 105, and the tank water supply pipe 107 is connected to its discharge end 107a in order to reduce the sound of water supply to the tank 100.
is connected to the outlet 104 so as to be located close to the bottom of the tank 100. Further, a rim water supply pipe 109 is connected to one outlet 105 and an opening 108 that communicates with the rim water passageway, so that water from the water supply pipe 101 can be supplied to the rim water passageway and into the tank 100 .

Further, a drain port 110 is provided at the bottom of the tank 100, and a drain valve body 111 is pivotally connected to an overflow pipe 112, and is operated by an operation knob (not shown) provided outside the tank 100. A link is provided to open the valve.

As described above, since various devices are built into the tank 100, the rim water supply pipe 109 is usually piped in a U-shape using a flexible pipe such as a bendable rubber pipe, and is connected to the opening 108. Only the connecting portion is a copper tube, and the connecting portion between the copper tube and the rubber tube is connected to the overflow pipe 112.

The tank 100 is generally made of ceramic, but due to large manufacturing tolerances, the rim water supply pipe 10
The bending radius of the rubber tube may become small due to unevenness in the distance between the switching valve 106 of No. 9 and the opening 108, or variations in the insertion distance of the rubber tube during assembly. In this case, if the curvature of the rubber tube during piping becomes smaller than the allowable bending radius, the bent portion will deform into a flat shape. Therefore, there is a problem in that the area of the flow path within the rubber tube is locally reduced, and the flow rate to the rim passageway is reduced, making it impossible to clean the toilet bowl from the rim portion. Further, there is also the disadvantage that the internal pressure of the rim water supply pipe 109 increases, the switching valve 106 becomes inoperable, the drain valve body 111 does not close, and water is discharged wastefully.

[Purpose of invention]

An object of the present invention is to prevent flattening of a flexible tube that supplies water to the rim so that water can be supplied to the rim well.

The technical problem to be solved by the present invention is to install a flexible pipe that is installed inside the tank and connects the switching valve on the water supply side with the rim water passage formed in the toilet body.
The purpose is to prevent flattening of the bent portion.

[Structure of the idea]

The configuration of the present invention is a toilet cleaning tank device having a tank water supply channel and a rim water supply channel that supply flush water from a ball tap provided in the tank to the tank and the rim water channel of the toilet via a flow path switching valve. The rim water supply channel has a flexible tube bent into a substantially U-shape in the middle, and a coil spring having an inner diameter slightly larger than the outer diameter of the flexible tube is inserted into the bent part of the flexible tube. .

With the above configuration, the coil spring can prevent flattening deformation in which the bending radius of the flexible tube becomes small and the tube wall bulges in two directions.

〔effect〕

The present invention achieves the following effects with the above configuration.

Since the flexible tube is not flattened and the flow path area is not reduced, water can be supplied to the rim water passage in a good manner.

Since the outer wall of the flexible tube is protected by a coil spring, it will not wear out even if it comes into contact with the bottom wall of the tank, and its durability can be improved.

Since the coil spring itself is bendable, piping can be easily done even if it is inserted into a flexible tube.

〔Example〕

The present invention will be explained below based on embodiments shown in the drawings.

FIG. 2 is a perspective view of a seat-type flush toilet. In the figure, 1 is the toilet main body, and an annular rim 3 is formed to surround the toilet bowl 2 inside, and a rim water passage 4 runs along the entire length of the rim 3. is formed. Reference numeral 5 denotes a tank for storing flush water, which in this example is integrally molded with the toilet main body 1. The tank 5 is pipe-connected to a water stop valve 6 at the bottom and communicates with the rim passageway 4 and the toilet bowl 2, so that wash water is supplied to both from within the tank 5. A tank lid 5a is removably placed on the upper opening of the tank 5, and a handle 7 for opening and closing a drain port 17, which will be described later, is attached to one side wall. Furthermore, 8,
Reference numerals 9 denote a toilet seat and a toilet lid, each of which is pivotably connected to the toilet main body 1.

FIG. 3 is a partially cutaway front view showing the main parts inside the tank 5, FIG. 4 is a side view taken along the - line arrow in FIG. 3, and FIG. 5 is a plan view thereof. In the figure, reference numeral 10 denotes a ball tap main body connected to the water stop valve 6 through a connecting pipe 11 and located at the upper side of the tank 5;
13 is a flow rate adjustment valve connected to the downstream side of the ball tap main body 10, and 13 is a flow path switching valve connected to this flow rate adjustment valve 12 for supplying flush water to the rim passageway 4 of the toilet body 1 and into the tank 5.

The flow rate adjustment valve 12 has a slidably built-in piston valve 15 biased by a spring 14,
The spring 14 expands and contracts in response to the water supply pressure from the ball tap body 10 and raises and lowers the piston valve 15, thereby making the flow path area variable and supplying a constant flow rate to the flow path switching valve 13 regardless of the level of water supply pressure. It is for the purpose of

Further, the flow path switching valve 13 is provided with a rim side outlet 13a and a tank side outlet 13b, and an inlet 13c.
A switching valve body 16 is rotatably pivoted midway between the two. This switching valve body 16 is connected to a drain valve body 18 that opens and closes a drain port 17 provided at the bottom of the tank 5.
A lever portion 20 communicating via 9 is integrally formed. The drain valve body 18 and the valve seat 18a constitute a drain valve E, which is connected to the handle 7 and is connected to the lever part 2.
It is rotated counterclockwise in FIG. 3 by the operating rod 21 which together with 0 constitutes the link mechanism L
Drain valve E can be opened.

A short tube 22 is screwed downward to the rim side outlet 13a, and a rubber tube 23 is formed as a flexible tube that can be bent freely.
is inserted and fixed with the mounting bracket 24. A copper tube 25 is connected to the other end of the rubber tube 23, and the short tube 22, the rubber tube 23, and the copper tube 25 constitute a rim water supply channel F-1. A connecting portion of the copper pipe 25 is fixed to an overflow pipe 27 by a fitting 26, and the copper pipe 25 is connected to the rim water passage 4 via a bush 27a. Reference numeral 28 denotes a coil spring disposed so as to fit around the rubber tube 23, and its inner diameter is slightly larger than the outer diameter of the rubber tube 23. This coil spring 28
is attached to the rubber tube 23 in an immovable manner by crushing its both ends with pliers or the like, reducing the inner diameter of both ends, and crimping the tube to the outer periphery of the rubber tube 23.

Furthermore, 13e is connected to the tank side outlet 13b and opens to the bottom side of the tank 5.
-2 tank side supply pipe, flow path switching valve 1
3, water can be selectively supplied to the rim water passage 4 side and the tank 5 side.

Next, the ball tap body 10 will be described.
The ball tap main body 10 has an inlet 29 that screws and connects the communication pipe 11, a cylindrical valve body insertion hole 30 that is coaxial with the inlet 29 and extends upward for a required length.
and an approximately ⊥-shaped hollow body that is located between the inlet 29 and the valve body insertion hole 30 and protrudes in a direction perpendicular to the axes of both, and defines an outlet 31 that communicates with the flow rate adjustment valve 12. be done. An annular valve seat 32 protruding upward is formed coaxially with the inlet 29 at the inlet 29, and a valve body 33 that approaches and separates from the valve seat 32 can slide into the valve body insertion hole 30. The valve body 33 and the valve seat 32 constitute a main valve M. The valve body 33 has a support 35 at its lower end that supports a packing 34 that is in close contact with the valve seat 32;
It is formed of a sliding body 37 into which the upper extension rod 36 of No. 5 is inserted and slides on the inner circumferential surface of the valve body insertion hole 30, and an annular packing 38 is attached to the circumferential surface of the sliding body 37. Furthermore, a through hole 40 is formed at the upper end of the sliding body 37, into which a float support rod 39 having a float 39a fixed to one end is fitted.

The float support rod 39 is rotatably attached by an arm 41 provided protruding from the ball tap main body 10 through a pin 42, and rotates about the pivot point of the pin 42 in accordance with the vertical movement of the float 39a. The main valve M can be opened and closed by moving the valve body 33 up and down within the valve body insertion hole 30 and moving the gasket 34 toward and away from the valve seat 32.

Note that 43 is a cover that covers the upper end opening of the valve body insertion hole 30.

In the above configuration, the rubber pipe 2 forming the rim water supply channel
3 is bent in a U-shape so as to bypass the equipment placed in the tank 5, but since a coil spring 28 is inserted into the rubber tube 23, the bent portion is deformed into a flat shape. There isn't.

That is, the inner diameter of the coil spring 28 is
3, the coil spring 28 can prevent flattening of the rubber tube 23 and keep it always in a circular cross section even if the bending radius of the rubber tube 23 is smaller than the allowable bending radius. . Therefore, even if the dimensional tolerance of the ceramic tank 5 is large or the insertion allowances for the short tube 22 and the copper tube 25 are different from the designed values and the radius of curvature of the rubber tube 23 becomes small, the rubber tube 23 will not be flat. There is no deformation, and water can be supplied to the rim passageway 4 well.

In addition, since the rubber tube 23 has its circumferential surface protected by a coil spring 28, the tank bottom wall 5
There is no direct contact with b, and the rubber tube 23 does not wear out over time. Moreover, since the coil spring 28 is inserted externally into the rubber tube 23, the water flow area within the rubber tube 23 is reduced and the flow path resistance is increased, as in the case where the coil spring 28 is inserted into the rubber tube 23. There has never been a case where the flow of flushing water to the rim has been reduced and the toilet bowl has not been cleaned adequately.

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view of a conventional toilet flush tank device, Fig. 2 is a perspective view of a seated flush toilet, and Fig. 3 is a partial cutaway showing the main parts inside the tank of the toilet flush tank device according to the present invention. A front view, FIG. 4 is a partially cutaway side view of FIG. 3 taken along the - line arrow, and FIG. 5 is a partially cutaway plan view of FIG. 3. 4... Rim water passage, 5... Tank, 5b... Tank bottom wall, 7... Handle (operation part), 10...
Ball tap body, 13...Flow path switching valve, 23...
...Rubber tube (flexible tube), 28...Coil spring,
31...Outlet, 39a...Float, E...Drain valve, F-1...Rim water supply channel, F-2...Tank water supply channel, M...Main valve.

Claims (1)

[Scope of utility model registration request] A ball tap body equipped with a main valve that opens and closes a flow path using a float that responds to the water level in the tank, and a rim that communicates with the outlet of the ball tap body and supplies water to the tank water channel and the toilet rim water channel. a water supply channel; a flow path switching valve that selectively communicates either one of the water supply channels with the ball tap body; a drain valve provided on the tank bottom wall that opens and closes the flow path to the toilet; and the switching valve. The toilet cleaning tank device has a link mechanism that operates in conjunction with a drain valve, and an operation section that is provided on the outer wall of the tank and that opens the drain valve in conjunction with the link mechanism, wherein the rim water supply channel is connected to the toilet bowl cleaning tank device. It has a flexible tube that is bent in a substantially U-shape in the middle, and a coil spring that has an inner diameter slightly larger than the outer diameter of the flexible tube and that extends over at least the bent portion of the flexible tube. Characteristic toilet bowl cleaning tank device.