JPH0121297B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a toilet bowl cleaning tank discharge device that allows the toilet bowl to be flushed by vertically rotating an operating section.

Conventionally, as a discharge device for a toilet cleaning tank of this type, there is the one shown in Fig. 1 of Japanese Utility Model Publication No. 16544/1983.

In this case, when the lever 19' is rotated via the operating part 37', the upper and lower surfaces of the lever 19' come into contact with the opening periphery of the fixture 11', and the rotation angle of the lever 19' is regulated. .

On the other hand, a certain rotation angle of the lever 19' is required to open the discharge valve, and the vertical width of the lever 19' must be sufficiently smaller than the inner diameter of the insertion hole 17' of the fixture 11'. In this case, it is not possible to increase the rotation angle, so lever 1
9' is tapered.

Therefore, since a large force is concentrated on the pivot portion 23' of the lever 19' during operation, the portion 23' is likely to bend or break, and there is a possibility that the drain valve may not be able to be opened.

Therefore, in order to prevent this, the vertical width of the lever 19' can be increased, but as soon as the lever 19' comes into contact with the opening periphery of the insertion hole 17', the rotation angle becomes small, so the valve opening operation becomes uncertain. Also, as the vertical width of the lever 19' is increased, the opening of the fixture 11' may be increased.
The mounting tool 11' becomes large, which increases the cost and makes it unsightly.

It is an object of the present invention to solve these problems and to ensure that the drain valve can be opened.

The basic structure of the present invention is that the vertical width of the pivot part, which is pivotally supported by the horizontal pin of the lever and located in the insertion hole, is slightly smaller than the vertical width of the insertion hole on the axis perpendicular to the horizontal pin. It is formed to have a small size, and is provided with an inclined part that slopes upward from the lower edge on the axis toward the operating section from the position on the axis toward the operating section, and from the lower edge on the axis toward the operating section. By providing an inclined part that slopes downward from the lower edge on the axis line toward the actuating part and gradually decreasing the vertical width of each part, both inclined parts come into contact with the inner circumferential surface of the insertion hole when the lever is actuated. This allows the lever to be rotated until it makes contact.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In this embodiment, as shown in FIG. 2, a ball tap faucet a is provided inside the tank body A, which has a cleaning pipe 4 communicating with a toilet bowl (not shown) and a water storage pipe 5 connected inside the tank body A. The bottom wall _A1 of the tank body A is provided with a drain valve b that interlocks with the ball tap hydrant a.

The ball tap faucet a is equipped with a float 1 that moves up and down as the water level in the tank body A fluctuates.
The water supply pipe 2 is configured to open and close the water supply from the water supply pipe 2 in response to the elevation of the water supply pipe 2, and is equipped with a switching valve at its water outlet. The switching valve is configured so that when a freely rotatable switching lever 3 rotates upward, water flows into the washing pipe 4, and conversely, when the switching lever 3 rotates downward, water flows into the water storage pipe 5. has been done.

The drain valve b has a drain valve main body 7 with a valve seat 6 on the top.
and a float valve body 9 which is rotatably supported via an arm rod 8. Normally, the float valve body 9 is seated on the valve seat 6 and closed, and the float valve body 9 is closed.
When the chain 10 connecting the switch lever 3 and the switch lever 3 is pulled upward, the valve opens and water in the tank body A is supplied to the toilet bowl.

Therefore, when the switching lever 3 is rotated upward, the float valve body 9 linked to the switching lever 3 moves upward, opening the drain valve b, and water in the tank body A is supplied to the toilet bowl. As a result, the water level in the tank body A falls and water supply from the water supply pipe 2 is started. The water flows out into the toilet bowl through the flush pipe 4 which is switched by the upward movement of the switching lever 3.

After that, when most of the water in the tank body A has flowed out from the drain valve b, the float valve body 9 falls, seats on the valve seat 6, closes the drain valve b, and simultaneously moves the switching lever 3 downward. Along with this, the water storage pipe 5
The water is stored in the tank body A. When a certain amount of water is stored, the float 1 moves up, stops water supply, and returns to the initial state.

On the other hand, a through hole 12 through which a fitting 11 is inserted is opened at an appropriate location in the side wall _A2 of the tank body A.

The fitting 11 consists of a cylindrical part 13 with a square cross section that passes through the side wall _A2 of the tank body A, and a flange part 14 that protrudes from the outer end of the flange part 14 and brings its rear surface into contact with the side wall A. 13 has a circular inner periphery with a screw 15 carved therein, and is fixed to the tank body A by screwing a nut 16 onto the screw 15 from inside the side wall _A2 .

Further, the cylindrical portion 13 has an insertion hole 17 opened in the axial direction, and this insertion hole 17 is formed in a rectangular shape extending vertically, and a horizontal pin 18 is screwed in a direction perpendicular to the axial direction. A lever 19 is pivotally supported to rotate freely in the vertical direction.

The flange 14 has a circular hole 2 with a larger diameter than the insertion hole 17.
0 is opened eccentrically downward, and a gasket 21 is attached to the inner end of which the lever 19 abuts, and
The front surface is formed into a curved surface that bulges outward with the horizontal pin 18 as the center.

The lever 19 has a first lever 19a whose middle part is pivoted in the insertion hole 17, whose outer end projects outward from the collar part 14, and whose inner end projects into the tank body A.
and a second lever 19b attached to the inner end thereof via a connector 22, and is attached so as not to be movable in the axial direction of the insertion hole 17 by the horizontal pin 18, and when the entire lever 19 is in an inactive state. It is pivoted so that it is approximately horizontal.

The first lever 19a has a pivot portion 23 located in the insertion hole 17 whose vertical width is slightly shorter than the vertical width of the insertion hole 17, and a horizontal pin 18.
Inclined portions 24 and 25 are formed, respectively, whose vertical widths gradually become thinner from the upper and lower ends on the axis perpendicular to the upper and lower ends toward the inner and outer ends of the first lever 19a.

Therefore, the first lever 19a can increase the vertical width of the pivot portion 23, and also allows the first lever 19a to have a thick vertical width.
The lever 19 can be rotated in the vertical direction until the levers 4 and 25 come into contact with the upper and lower inner peripheral surfaces of the insertion hole 17, respectively.
The overall rotation angle increases.

Further, the first lever 19a has an outer end formed into a planar T-shape and an operating portion 26 fixed to the lower surface thereof with a screw 27, and an inner end formed into a vertically wide shape to form a sliding portion 28, A plurality of holes 29, for example three holes, are bored at appropriate intervals on the side surface of the portion 28.

The operating part 26 is made of synthetic resin, such as ABS resin, with a metal-plated surface, and the width is the same as that of the first lever 19.
It is formed into a substantially box shape wider than the horizontal width of a, and one side of the box is open, and the opening 30 is connected to the mounting tool 11.
It is attached so as to cover the collar part 14 of.

Further, a first lever 19a is provided on the upper surface of the operation section 26.
is a flat surface 31 that is approximately horizontal when in the non-operating state.
, which makes it easier to press downward.

The second lever 19b has an outer end side surface formed into a circular shape with a larger diameter than the vertical width of the middle part, and an engagement hole 32 bored in the center thereof in a direction orthogonal to the axial direction. A spline 33 is formed on the inner circumferential surface of the hole 32 and is fixed to the front surface of the connector 22 in a non-rotatable manner.

The connector 22 is formed in a cylindrical shape, and has a first
A notch 34 is provided in which the sliding part 28 formed at the inner end of the lever 19a can slide only in the axial direction, and the sliding part 28 is inserted into the notch 34 to open the sliding part 28. By inserting the pin 36 through the hole 29 made and the hole 35 drilled in the center of the connector 22,
Both of these 22, 19a and the second lever 19b can be fixed integrally.

Therefore, by sliding the sliding portion 28 of the first lever 19a and sequentially fixing the holes 29 drilled in the portion 28 to the holes 35 of the connector 22 via the pins 36, the entire lever 19 can be removed. The length of the second lever 19b and the connecting tool 22 can be adjusted in stages.
By changing the engagement angle between the two levers, the overall length of the lever 19 can be further finely adjusted, and the upper limit position of rotation of the actuating portion 37, which will be described later, can be adjusted.

The inner end of the second lever 19b is bent to one side at a right angle so as to be located below the switching lever 3 of the ball tap faucet a, and the second lever 19b is rotated upward. It constitutes an actuating section 37 that rotates the switching lever 3 by moving the switching lever 3.

Note that it is not necessary to connect the first lever 19a and the second lever 19b via the connector 22, and the connector 22 may be integrally formed on either the first lever 19a or the second lever 19b. The two may be connected, or the first lever 19a may be linked directly to the drain valve b.

Next, FIG. 6 shows another embodiment, in which the mounting state of the first lever 19a and the operating section 26 is different.

That is, in this case, the flange 14 of the fixture 11 projects outward to form a substantially box shape, and the upper end of the operating rod 38, which is slidably inserted in the top surface of the box in the vertical direction, has an inverted concave cross section. The formed operating portion 26 is fixed, and the lower end of the operating rod 38 is connected to the outer end of the first lever 19a via a shaft 39.

The lower end of the operating rod 38 is formed into a bifurcated shape, and the outer end of the first lever 19a is slidably inserted between the bifurcated portions 40, and the outer end of the first lever 19a is provided with a guide extending in the axial direction on the side surface. The hole 41 is cut out, and a shaft 39 that slidably passes through the hole 41 is installed in the bifurcated portion 40 .

Therefore, in this device, by pressing the operating portion 26 downward, the operating rod 38 slides downward, and the operating rod 38 is moved downward.
A shaft 39 installed at the lower end of the lever 8 slides in the guide hole 41 to rotate the outer end of the first lever 19a downward.

Therefore, in the non-operating state, the draining device for the toilet cleaning tank is operated by the pivot portion 23 of the first lever 19a.
The upper surface of the outer half of the lever contacts the inner circumferential surface of the insertion hole 17, and the operating portion 26 is located at the upper limit, and the second lever 19
An operating portion 37 formed at the inner end of b is located below the switching lever 3 of the ball tap faucet a.

During operation, when the flat surface 31 formed on the upper surface of the operating section 26 is pressed downward, the first lever 19a rotates around the horizontal pin 18, and the second lever 19b connected to its outer end rotates upward. The operating section 37 pushes the switching lever 3 upward to open the drain valve b.

On the other hand, the operation of the operation unit 26 is completed instantly,
As soon as you release your hand from the operating section 26, the second lever 1
9b etc., the actuating part 37 rotates downward and separates from the switching lever 3, and the first lever 1
The outer end of 9a rotates upward to return the operating section 26 to its original state.

Since the present invention has the above configuration, it has the following advantages.

Since two inclined parts are provided on the pivot part of the lever, when the lever is operated, the lever rotates until these inclined parts come into contact with the inner circumferential surface of the insertion hole, and the pivot part is slightly smaller than the inner diameter of the insertion hole. Since it can be made wider, the strength of the pivot can be improved without increasing the size of the fitting, the lever will not bend, and the rotation angle will not become small, making the drain valve secure. The valve can be opened.

Since the inclined part of the pivot part of the lever makes surface contact with the inner circumferential surface of the insertion hole, there is no line contact with the opening edge of the insertion hole as in the past, and the lever does not break at the point of line contact, and the pivot part Coupled with the large vertical width, it has great durability.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view showing an example of a conventional drainage device for a toilet cleaning tank, FIG. 2 is a vertical cross-sectional view showing an installed state of the drainage device for a toilet cleaning tank according to an embodiment of the present invention, and FIG. The figure is a front view showing an enlarged view of the main part with a part cut away, FIG. 4 is a plan view of the same with a part cut away, FIG. FIG. 7 is a vertical cross-sectional view showing another embodiment. A...Tank body, _A2 ...Wall, b...Drain valve,
11... Mounting tool, 17... Insertion hole, 18... Horizontal pin, 19... Lever, 23... Pivotal part, 24,
25... Inclined part, 26... Operation part, 37... Actuation part.

Claims (1)

[Claims] 1. The tank body is inserted into the wall of the tank body through the insertion hole of the fixture, and is attached to the fixture with a horizontal pin so that it can move up and down, and an operating part is provided at the outer end and an operating part linked to the drain valve is provided inside. In a toilet cleaning tank drain device, the drain valve is equipped with a lever that is pivoted on a horizontal pin, and the drain valve is pulled up and opened by the upward rotation of the actuating part as the operating part is rotated downward, and the lever is pivoted on a horizontal pin. The vertical width of the pivot portion located in the insertion hole is formed to be slightly smaller than the vertical width of the insertion hole on the axis perpendicular to the horizontal pin, and the vertical width of the pivot portion located in the insertion hole is formed to be slightly smaller than the vertical width of the insertion hole, and the pivot portion is formed to have a vertical width slightly smaller than the vertical width of the insertion hole, and from the position on the axis toward the operating section. In the direction toward the operating section, an inclined section is provided that slopes upward from the lower edge on the axis toward the operating section, and in the direction of the operating section, an inclined section is provided that slopes downward from the lower edge on the axis toward the operating section. A drainage device for a toilet cleaning tank, which is constructed by providing sections and gradually decreasing the vertical width of each section.