JP2007534867A - Western style toilet having a rim side water supply device using the same - Google Patents

Abstract

A toilet bowl having a rim-side water supply device using an injection pump in a toilet bowl in which a water tank whose water level is lower than a rim water channel is formed integrally with a main body.
The toilet bowl of the present invention is supplied with rim washing water through a water tank holding a certain amount of washing water through a ball tap that opens and closes water supply according to the internal water level, a connecting pipe of the ball tap and a rim water channel. A plurality of discharge holes that are spaced apart from each other on the inner peripheral surface of the rim, and a toilet body that is formed with a wash space connected to the lower portion of the water storage tank and the jet water channel at a lower portion thereof. In addition, a water faucet that opens and closes the jet water channel outlet at the bottom of the water storage tank by the operation of the operation lever, and a mixed cleaning water in which the water supply and the cleaning water in the water storage tank are combined between the ball tap connecting pipe and the rim water channel are rimmed. The efficiency of the rim cleaning can be enhanced through the flow rate amplification by being composed of an injection nozzle that is supplied to the water channel, a throat, an expansion pipe, and an injection pump composed of an inlet between the injection nozzle and the throat.
[Selection]
FIG.

Description

The present invention relates to a Western toilet having a rim-side water supply device using an injection pump, and more particularly to an injection pump capable of supplying a fixed amount of washing water and a western toilet having a rim-side water supply device using the same. .

A Western toilet consists of a water tank that is supplied with wash water through a ball tap and stores it, and a toilet body that is provided at the bottom of the water tank. The wash water can be opened by the operation lever provided in the water tank. For example, it is structured to be discharged to the toilet body side and discharged together with the toilet. Such a toilet bowl is distinguished by a two-piece toilet bowl and a one-piece toilet bowl in which a water tank and a toilet body are integrally formed. Due to the upscaling of housing, many toilet bowl-integrated Western toilets, which are high-grade one-piece Western toilets, are widely used.

FIG. 1 is a cross-sectional view showing a conventional water tank-integrated western toilet according to the prior art, and FIG. 2 is a cross-sectional view showing the inside of the water tank of the water tank-integrated western toilet.

Referring to FIGS. 1 and 2, if the user operates the operation lever 12 to wash the toilet, the faucet 13 connected to the operation lever 12 rotates upward to store the water tank. 9, the washing water drained into the jet water channel 29 is discharged to the jet injection port 27 to wash the stool, and at the same time, the ball tap 17 enters the rim discharge hole 25. The washing water is drained and the toilet remaining in the washing space of the toilet body 19 is washed.

In the water supply device on the rim side of the toilet bowl, a rim connection pipe 20 and a rim water supply pipe 21 are connected to the upper part of the ball tap 17 inside the water storage tank 10, and the end of the rim water supply pipe 21 is fitted into the rim water channel 23. As a structure, when draining through the water tap 13 described above, water is supplied to the ball tap 17, and at this time, water is supplied through the connecting pipe 20, the rim water supply pipe 21 and the rim water channel 23 connected to the ball tap 17. The irrigation water is sprayed through the discharge hole 25 at the bottom of the rim to wash the inner peripheral surface of the toilet bowl.

When the washing water in the water storage tank has escaped into the jet water channel 29 by a set amount, the faucet 13 is closed and the jet water channel 29 is blocked. At this time, the ball tap 17 switches the supply water to the supply pipe 31 on the water tank side and supplies it through the conversion unit 18 to fill the water tank 9 with the washing water. If the cleaning water is filled only at the set level, the ball tap 17 shuts off the water supply by the action of the air bladder 33 connected to the ball tap 17 and waits for the next operation.

However, in the toilet bowl in which the water tank described above is formed integrally with the main body, the toilet bowl in which the normal water level of the water tank is lower than the rim water channel 23 has a very low rim washing power. The reason is that the water stored in the water storage tank cannot be sent to the higher rim channel 23, and the water supplied from the water supply pipe 7 is sent to the discharge hole 25 at the bottom of the rim through the ball tap 17, and the flow rate is very small. Because.

According to the experiment, the water tank-integrated western-style toilet according to the prior art is required to have a flow rate of 0.45 L / s or more in order to complete the rim cleaning. However, the existing toilet bowl is attached to the normal water pressure (0.1 to 0.15 MPa) from the normal water pressure (0.1 to 0.15 MPa) due to flow path loss such as a ball tap, a connecting hose, and a diverter valve (a valve for diverting water supply to the reservoir and rim). As a result, water having a flow rate as low as 2 to 0.3 L / s is supplied, so that the lower part of the rim cannot be constantly washed.

In addition, general residential water pipes with an inner diameter of 16 mm are used, and in order to prevent damage due to the water hammer phenomenon, the internal flow rate has been reduced to 1.8 m / s or less by piping equipment engineering. And the piping system is designed based on this flow rate. Since the general toilet bowl tap has no special water hammer buffer function, a maximum of 0.36 L / s of water can be supplied to the rim by applying the recommended flow velocity of 1.8 m / s. If this is exceeded, the water hammer will put a burden on the piping, and the drop in water pressure will be severe. Therefore, the flow rate required for rim cleaning cannot be satisfied basically in the existing toilet bowl attachment or piping environment.

In order to solve such a problem, in Patent Document 1, the water supply portion of the rim is extended to the inside of the water tank, a water supply section is provided inside the water tank, and the water inside the water tank is directly fed into the rim through the water supply section. I am trying to supply.

Moreover, in patent document 2, after providing the auxiliary water tank separately supplied by the side of a rim in the water tank of a western toilet, the water tank filled with the auxiliary water tank is provided inside the auxiliary water tank by providing an additional water faucet inside the auxiliary water tank. All water is supplied.

However, the toilet bowl to which the above-described technology is applied has a complicated structure and the height of the water storage tank is high, so that there is a limit to practical use.
Korean Utility Model Application 1997-32522 Korean utility model application 1998-886

The present invention has been devised to solve the above-described problems, and an object of the present invention is to provide a rim for a toilet bowl in which a water tank whose water level is lower than a rim water channel is formed integrally with the main body. The object is to provide a Western toilet with excellent washing.

In addition, the present invention stabilizes the feed water pressure of a toilet having a rim-side water supply device using an injection pump and can supply a fixed amount of wash water to the rim side, and a rim side using the same. It is providing the toilet bowl which has a water supply apparatus.

Further, the present invention provides an injection pump capable of quickly discharging the cleaning water remaining in the injection pump connecting pipe line and the rim water channel to the water storage tank and the rim discharge hole after the operation of the injection pump, and a rim side using the same. It is providing the toilet bowl which has the water supply apparatus of this.

In order to solve the above-mentioned object, the toilet bowl according to the present invention includes a water storage tank that holds a certain amount of cleaning water through a ball tap that opens and closes water supply in accordance with an internal water level, a rim cleaning through a connection pipe and a rim water channel of the ball tap. Toilet body having a plurality of discharge holes that are spaced apart from each other on an inner peripheral surface of a rim to which water is supplied and a washing space that is connected to the lower part of the water storage tank through a jet water channel. A water faucet that opens and closes the jet water channel outlet at the bottom of the water tank by the operation of an operation lever, and between the rim water channel and the mixed tap water mixed with the water supply and the washing water in the water tank between the rim water channel and the rim water channel. An injection pump composed of an injection nozzle, a throat, an expansion pipe, and an inlet between the injection nozzle and the throat.

In the present invention, the ball tap is provided with a conversion unit that opens and closes the water supply according to the water level and converts the water supply to the water tank and the rim side, and when the conversion unit is replaced with the water tank side, a small amount of water is supplied. There is also the possibility that replenishment water will flow into the rim channel.

In the present invention, a ball guide tube into which a ball is inserted is extended upward by a predetermined length between the spray nozzle and the throat, and the water supply is switched to the storage tank and the rim side according to the water level. When the ball in the ball guide pipe changes the water supply to the water storage tank side, a small amount of replenishing water may flow out to the rim water channel through the outer gap provided in the throat in contact with the ball.

In the present invention, an opening / closing film is formed at a lower portion between the expansion pipe and the rim connecting portion, and an air bag is connected to the opening / closing film so that the opening / closing film can be opened and closed according to the water level of the water storage tank. According to the water level, the water supply can be switched to the storage tank and the rim side, and when the opening / closing membrane converts the water supply to the storage tank side, a small amount of replenishing water is transferred to the inner peripheral surface of the opening / closing membrane and the rim connection part. There is also a possibility of flowing out into the rim channel through a gap provided between them.

In the present invention, the throat of the injection pump and the expansion pipe are divided so that a portion where the inner peripheral surface of the expansion pipe overlaps with the outer peripheral surface of the throat is generated, and the position of the outer peripheral surface of the throat has many protrusions. A length adjusting means formed of a clasp can be formed on the inner peripheral surface on the side facing each other.

In order to solve another object of the present invention, an injection pump according to the present invention is connected to a suction pipe to which feed water is supplied, a supply pipe and a control pipe branched from the suction pipe, and jets the feed water. An injection nozzle, a throat disposed opposite to the injection nozzle, a series of expansion pipes and a rim connection portion connected to the throat, and an injection nozzle according to the supply of water from the injection nozzle between the injection nozzle and the throat The mixed washing water composed of the feed water and the washing water in the reservoir is introduced into the throat, and is connected to an inflow port formed in the outside and the adjustment pipe, and a fixed amount is supplied to the supply pipe. Consists of a pressure control unit that supplies water.

In the present invention, the pressure adjusting unit provides an elastic force to the outflow port, the open / close plate that opens and closes the outflow port, and the open / close plate, and adjusts the open / close of the outflow port by the water pressure of the suction pipe. When the pressure of the water supplied to the suction pipe is higher than the elastic force of the elastic body, the opening / closing plate retreats, and the supply water flows out through the outlet and the fixed amount of water is injected. Can be supplied to.

In the present invention, the rim connecting portion further includes a vent hole formed through the outside, and when the injection pump is stopped, the cleaning water remaining in the injection pump connection pipe line and the rim water path is stored in the water storage tank and the rim discharge hole. Can be discharged quickly.

In the present invention, a ball guide tube into which a ball is inserted is extended to the upper part by a predetermined length between the spray nozzle and the throat, and the water supply is switched to the storage tank and the rim side according to the water level. Can do.

In order to solve still another object of the present invention, a toilet bowl according to the present invention includes a water storage tank that holds a certain amount of washing water through a ball tap that opens and closes water supply according to an internal water level, a connecting pipe and a rim of the ball tap. Washing space connected to the lower part of the water storage tank and the jet waterway at a number of discharge holes and a lower part thereof that are spaced apart from the inner peripheral surface of the rim to be supplied with rim washing water through the waterway. A toilet body formed with a water tap, a faucet that opens and closes a jet water channel outlet at the bottom of the water tank by the operation of an operation lever, and water supply and washing water in the water tank are mixed between the ball tap connecting pipe and the rim water channel A suction pump configured to supply mixed cleaning water to the rim water channel, a spray nozzle, a throat, an expansion pipe, a rim connecting portion, and an inlet between the spray nozzle and the throat, and the suction pipe and the spray nozzle. In being connected to the control pipe and branched control pipe, and a pressure regulating unit for supplying water quantification to the injection nozzle.

In the present invention, the pressure adjusting unit includes an outflow port that is opened to the outside, an open / close plate that opens and closes the outflow port, and an open / close plate that provides elasticity to the open / close plate according to the water pressure of the suction pipe. When the pressure of the water supplied to the suction pipe is higher than the elastic force of the elastic body, the open / close plate retreats and the supply water flows out through the outlet to determine the amount of water. Water supply can be supplied to the injection nozzle.

In the present invention, the rim connecting portion further includes a vent hole formed through the outside, and when the injection pump is stopped, the cleaning water remaining in the injection pump connection pipe line and the rim water path is stored in the water storage tank and the rim discharge hole. Can be discharged quickly.

In the present invention, a ball guide tube into which a ball is inserted is extended to the upper part by a predetermined length between the spray nozzle and the throat, and the water supply is switched to the storage tank and the rim side according to the water level. Can do.

The present invention can enhance the performance of rim washing through amplifying the flow rate by interposing an injection pump between a ball tap and a rim water channel of a water tank integrated toilet.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the shape and thickness of each layer and material are set or outlined for convenience of explanation. Like reference numerals refer to like parts throughout the specification.

The present invention increases the efficiency of rim cleaning through flow rate amplification by interposing a jet pump in the rim channel of a water tank-integrated western toilet. The injection pump is a device that performs a function of sucking, mixing, and extruding through a process of sucking and discharging a low energy fluid using a high energy fluid.

The basic element of an injection pump is composed of three parts, a nozzle, a throat, and a diffuser, and is theoretically based on the Bernoulli equation.

The injection pump (Jat pump) sucks fluid around the throat using the kinetic energy of the injected fluid by strongly ejecting the fluid to the throat having a larger diameter through the injection port (nozzle). This is a hydrodynamic pump that recovers the partial pressure and transfers the mixed fluid to the destination.

If an injection pump is used, the wash water stored in the water tank can be mixed with the feed water to greatly increase the flow rate and be supplied to the rim water channel.

The injection pump according to the present invention satisfies the flow rate required for rim washing with a ratio of the discharge flow rate and the suction flow rate of about 1: 1.23, and does not give a burden to water hammer on the water supply pipe, and has a high water pressure. Does not cause a drop.

It should be noted that various embodiments can be considered in which the injection pump is applied to a rim channel supply device for a toilet bowl.

<First Embodiment>
In the first embodiment, the throat of the injection pump is adjacent to the bottom of the water storage tank, the discharge port of the injection pump is connected to the rim water channel, and the rim connection pipe of the ball tap having the conversion part that converts the water supply to the water storage tank and the rim side. The injection port supply pipe of the injection pump is connected.

FIG. 3 is a cross-sectional view showing a rim-side water supply device using the injection pump according to the first embodiment of the present invention.

Referring to FIG. 3, a ball tap 117 for supplying water for the external water supply pipe 107 is formed inside the water storage tank 109. An air bag 133 is connected to the ball tap 117 and includes a water storage tank and a conversion unit 118 that converts water supply to the rim side. A faucet 113 for operating the operation lever 112 to drain the water filled in the water storage tank 109 into the jet water channel 129 on the main body side is arranged, and a number of discharge holes are connected to a rim formed at the bottom. An injection pump 150 is interposed between the rim water passage 123 and the connecting pipe 120 on the rim side of the ball tap 117. The injection pump 150 includes an injection nozzle, a throat, and an expansion pipe and a rim connecting portion, and an inflow port is formed between the injection nozzle and the throat.

The operating principle of the rim-side water supply device according to the first embodiment shown in FIG. 3 is as follows.

First, when the user operates the operation lever 112 to start the cleaning operation, the faucet 113 is opened and the discharge of the cleaning water into the jet water channel 129 is started.

Water supply is started from the ball tap 117 while the cleaning water is discharged. At this time, the rim supply is set in the ball tap changer 118 and water supply to the rim-side connecting pipe 120 is started.

Water supply to the rim-side connecting pipe 120 is started, the injection pump 150 is activated, and the rim water passage 123 is supplied with mixed cleaning water obtained by mixing the water supplied to the ball tap and the cleaning water in the water tank (tank). Rim cleaning is effectively performed.

When the washing water in the water storage tank 109 is completely discharged, the water tap 113 is closed.

At this time, the conversion unit 118 of the ball tap 117 converts the water supply to the water tank supply pipe 131.
At this time, the wash water is stored in the water storage tank 109, and the injection pump 150 stops operating.

When the water in the water storage tank 109 reaches a certain water level, the diverter valve is diverted to the rim supply side, and the ball tap shuts off the water supply.

Second Embodiment
In the second embodiment, the throat of the injection pump is adjacent to the bottom of the water storage tank, the discharge port of the injection pump is connected to the rim water channel, and floats on the water with buoyancy in the space between the injection port (injection nozzle) and the throat. A guide tube is arranged so that the ball can move up and down and stays in a certain area.

FIG. 4 is a cross-sectional view showing a rim-side water supply device using an injection pump according to a second embodiment of the present invention.

Referring to FIG. 4, a ball tap 227 for supplying water for the external water supply pipe 207 is formed inside the water storage tank 209. An air bag 233 is connected to the ball tap, and the ball tap is a simple ball tap that opens and closes the water supply according to the water level and does not have a conversion part. A faucet 213 is provided for operating the operation lever 212 to drain the water filled in the water storage tank 209 into the jet water channel 229 on the main body side. An injection pump 250 is interposed between a rim water passage 223 connected to a rim having a plurality of discharge holes formed at the bottom and a supply pipe 220 on the rim side of the ball tap 227.

FIG. 5 is a sectional view showing the structure of an injection pump 250 according to the second embodiment of the present invention.

Referring to FIG. 5, an injection pump 250 is interposed between the ball tap connection pipe 220 and the rim water channel 223, and the injection pump 250 includes an injection nozzle 251, a throat 255, an expansion pipe 257, and a rim connection part 259. The inflow port 253 is formed between the injection nozzle 251 and the throat 255. A ball guide tube 263 is extended upward by a predetermined length between the spray nozzle 251 and the throat 255, and a ball 269 is inserted into the ball guide tube 263. The inside of the ball 269 is light as styropol 265, and the outside is covered with a ball case 267 made of synthetic resin. The ball 269 has a diameter larger than that of the throat 255 and a density lower than that of water. The rim connecting portion 259 and the rim water channel 223 of the injection pump are fixed by fastening means 262 by inserting a packing 261.

6 to 11 are sectional views showing the operating principle of the rim-side water supply device according to the second embodiment of the present invention.

Referring to FIG. 6, when the user starts the cleaning operation with the operation lever, discharge of the cleaning water to the faucet is started. While supplying water through the ball tap connecting pipe 220 at the ball tap, the injection pump 250 is operated, and the rim water channel 223 is supplied with the mixed cleaning water Qd in which the water supply Qj and the cleaning water Qs in the water storage tank are combined.

Referring to FIG. 7, the water level of the water storage tank is lowered, and the mixed cleaning water Qd obtained by mixing the water supply Qj and the cleaning water Qs in the water storage tank is subsequently supplied. At this time, the ball goes down according to the lowering water level.

Referring to FIG. 8, the water faucet is closed when all of the washing water in the water storage tank is discharged. At this time, water supply continues at the ball tap, and the ball 269 is sucked into the inlet of the throat 255 of the injection pump by the suction pressure Ps to stop the operation of the injection pump.

Referring to FIG. 9, the water to be sprayed hits the ball 269 and flows out into the water storage tank and is stored in the washing water. At this time, the ball stays at the inlet of the throat 255 due to the pressure of the injected water supply until the wash water is stored at a constant water level in the water tank.

Referring to FIG. 10, the ball tap shuts off the water supply when the water storage in the water tank is completed to the normal water level. At this time, the ball 269 floats up along the ball guide tube 263 by buoyancy.

<Third Embodiment>
The inlet of the injection pump is adjacent to the bottom of the water tank, the outlet of the injection pump is connected to the rim channel, and the normal water level between the outlet and the expansion pipe and the water from the expansion pipe to the area between the outlet An open / close membrane that shuts off and discharges water to the outside of the discharge pipe is provided. An air bag is provided at an extended portion of the rotary shaft for rotating the opening / closing film and one end of the opening / closing film.

FIG. 11 is a cross-sectional view showing a rim-side water supply device using an injection pump according to a third embodiment of the present invention.

Referring to FIG. 11, a ball tap 327 for supplying water for the external water supply pipe 307 is disposed inside the water storage tank 309. An air bag 333 is connected to the ball tap, and the ball tap is a simple ball tap that opens and closes water supply according to the water level. A faucet 313 is disposed for operating the operation lever 312 to drain the water filled in the water storage tank 309 into the jet water channel 329 on the main body side. An injection pump 350 is interposed between a rim water passage 323 connected to a rim having a large number of discharge holes formed at the bottom and a connecting pipe 320 on the rim side of the ball tap 327.

FIG. 12 is a cross-sectional view showing the structure of an injection pump 350 according to the third embodiment of the present invention.

Referring to FIG. 12, an injection pump 350 is interposed between the ball tap connection pipe 320 and the rim water channel 323, and the injection pump 350 includes an injection nozzle 351, a throat 355, an expansion pipe 357, and a rim connection portion 359. The inflow port 353 is formed between the injection nozzle 351 and the throat 355. An opening / closing film 364 is formed at a lower portion between the expansion pipe 357 and the rim connecting portion 359, and the opening / closing film 364 is connected to the air bag 366 so that the opening / closing film 364 can be opened and closed depending on the water level of the water storage tank. The rim connecting portion 359 and the rim water channel 323 of the injection pump are fixed by fastening means 362 by inserting a packing 361.

13 to 17 are cross-sectional views showing the operating principle of the rim-side water supply device according to the third embodiment of the present invention.

Referring to FIG. 13, when the washing operation is started, discharge of the washing water into the faucet is started. Water supply is started by the ball tap, the injection pump is operated, and the mixed cleaning water Qd in which the water supply Qj and the cleaning water Qs in the water storage tank are combined is supplied to the rim water channel.

Referring to FIG. 14, the water level of the water storage tank is lowered, but the opening / closing film 364 maintains the state because the rotational force due to the injection pump discharge pressure Pj is larger than the rotational force due to its own weight.

Referring to FIG. 15, the discharge of the washing water is completed and the faucet is closed. At this time, air flows into the throat 355 and the injection pump stops operating. The opening / closing film 364 is rotated by its own weight, closes the discharge pipe, and changes the direction of the injected water supply toward the water storage tank. The reservoir is filled with water.

Referring to FIG. 16, washing water is stored in the water storage tank, and the air bag 366 receives buoyancy to generate a rotational force in the opening / closing film 364, but the rotation in which the kinetic energy of the injected water supply is added to the opening / closing film 364. The force is further increased, and the opening / closing film maintains its state.

Referring to FIG. 17, when normal water level storage is completed in the water tank, the ball tap is configured to block water supply, and is rotated by buoyancy so that the opening / closing film 364 opens the discharge pipe.

The toilet bowl is in a state where there is insufficient water in the bowl and trap after the siphon action discharge. In order to compensate for this, after a washing operation, a small amount of water is supplied to the ball, which is called 'replenishment water'.

The following methods can be considered for supplying makeup water.

First, in 1st Embodiment, even if a conversion part is converted into the water storage tank side, a small amount of water can be flowed out to the water supply port by the side of a rim.

In the second embodiment, even if the ball blocks the throat, a gap is placed outside the contact surface in contact with the ball, and a small amount of water is discharged here to supply supplementary water.

18 is a partial view showing a replenishing water supply means as a rim-side water supply device according to the second embodiment of the present invention, and FIG. 19 is a cross-sectional view taken along the line BB of FIG.

18 and 19, the replenishing water Qa is supplied to the water supply device on the rim side through the replenishing water supply gap 271 even when the ball 269 blocks the throat 255.

In the third embodiment, a gap is provided between the opening / closing membrane and the discharge port, and a small amount of water is discharged to supply supplementary water.

A sanitary ware-made Western toilet bowl has a large dimensional change during the manufacturing process. Therefore, it is desirable to provide a length adjusting means for adjusting the position of the throat of the injection pump to the proper position of the water tank bottom.

20 is a partial view showing the length adjusting means of the injection pump according to the embodiment of the present invention, and FIG. 21 is a cross-sectional view taken along the line AA of FIG.

Referring to FIGS. 20 and 21, as a length adjusting means, the length for dividing the throat 255 and the expansion tube 257 to match the position of the throat injection port to the proper position of the water tank bottom. Adjustment means are provided.

As a length adjusting means, a projection 283 is formed on one side of the outer peripheral surface of the throat such that a portion between the throat 255 and the expanding tube 257 is divided so that the inner peripheral surface of the expanding tube overlaps with the outer peripheral surface of the throat. A large number of them are formed, and clasps 281 are attached to the outer peripheral surface of the expanding tube on the facing side.

Such length adjusting means has the following functions in the operation of the injection pump of the toilet bowl.

First, the length adjusting means adjusts the working water level of the injection pump.
A difference occurs in the position of the injection pump arranged inside the water tank according to the difference in the size change of the toilet bowl and the type of the water tank water tank. At this time, due to the difference in the position of the injection pump (or the difference in the water pressure or the quantity of the supply water supplied to the injection pump), the wash water discharge flow rate to the jet channel side and the rim side during the water washing operation The ratio of washing changes and a difference in washing performance occurs. This is because when the injection pump is operated, a part of the washing water inside the water storage tank is moved to the rim side by the operation of the injection pump. In order to improve washing performance and save water, adjustment of this ratio is required according to the shape and structure of the toilet bowl. Therefore, in the present invention, the length adjusting means is arranged to determine the ratio of the washing water discharge flow rate on the jet water channel side and the rim side.

Second, it is possible to cope with dimensional changes during the manufacturing process of the toilet bowl.
The size change is very large in the manufacturing process of Western toilets. Therefore, even in a toilet bowl with the same shape and structure, the dimensional deviation is large for each product and the working water level of the injection pump is also large due to the ratio of raw material blending, the firing temperature of the kettle, etc., thereby reducing the washing capacity. . Therefore, it is possible to provide length adjusting means for setting the working water level of the injection pump in consideration of the dimensional deviation of the toilet bowl product.

Third, suitable securing means are required to maintain the adjusted length. In the present invention, the protrusions and the clasps are formed on the inner peripheral surface side and the outer peripheral surface side of the overlapping portion of the pipes by a method that is easy to install and adjust in a narrow space in the toilet bowl water tank. When the length is adjusted, the clasp is slightly raised, or a strong force is applied so that the clasp is lifted by the inclined surface, and the length is adjusted while moving to the next protrusion.

FIG. 22 is a cross-sectional view showing a Western toilet equipped with an injection pump according to the second embodiment of the present invention.

Referring to FIG. 22, when the user activates the operation lever 212 to wash the toilet, the faucet 213 connected to the operation lever 212 rotates upward, and the jet water channel of the water storage tank. The washing water drained into the jet water channel 229 is discharged to the jet injection port 227 to wash the toilet, and at the same time, the washing water is drained into the rim discharge hole 225 through the ball tap 227, and the toilet body The stool remaining in the wash space 219 is washed. An injection pump 250 is interposed between the ball tap 227 and the rim water channel 223 to supply mixed cleaning water in which the water supply and the cleaning water in the water storage tank are combined to the rim water channel.

When washing of the washing water is completed, the faucet 213 rotates downward by itself, shuts off the jet water channel 229 of the water tank, holds a certain amount of washing water supplied to the inside of the water tank, and performs the next operation. Come to wait.

Since the above-described injection pump 250 having the water supply device using the injection pump supplies the rim with the mixed cleaning water composed of the cleaning water stored in the water storage tank and the supply water supplied from the ball tap 217, the rim cleaning power is increased. Has excellent advantages. However, the water pressure of the feed water supplied to the injection pump 250 varies greatly depending on variables such as the installation area and usage time of the toilet bowl, and the change in the feed water flow rate is large, resulting in the wash water supplied to the rim water channel 223. There is a disadvantage that the amount of water consumption increases rapidly when the amount of change is increased and the supplied water supply is at a high water pressure. In order to make up for this, an expensive flow control valve can be installed in the water supply pipe, but there is a problem that the installation cost increases, and in the low water pressure state, the water pressure is lost and the washing power is reduced.

Further, after the operation of the injection pump 250 is stopped, the connection pipe line of the injection pump and the rim water channel 223 are filled with the remaining cleaning water. At this time, the residual washing water does not flow through the connecting pipe line to the low water tank side, and flows out to the discharge hole 225 of the rim. This is because the rim discharge hole 225 has a diameter of about 4 mm and is small, and the surface tension has an effect. The kinetic energy during the operation of the injection pump acts on the cleaning water, and the residual cleaning water gradually enters the rim discharge hole 225. Get out. When the residual cleaning water escapes into the rim discharge hole 225, the water level of the cleaning water in the water storage tank becomes lower and lower than the normal water level, and there is a problem that the ball tap 217 for opening and closing the water supply malfunctions. In order to compensate for this, a vacuum breaker can be introduced into the connecting pipe of the rim, but in this case, the structure of the toilet bowl becomes complicated and expensive, and water pressure loss occurs. This can result in a reduction in wash water.

Therefore, according to the present invention, a pressure adjusting unit is provided in the injection pump connected to the rim water channel of the toilet bowl, the pressure of the supply water supplied to the injection pump is kept constant, and the flow rate discharged from the injection pump is made constant. It is possible to maintain a constant supply amount of cleaning water required for rim cleaning.

Further, the present invention provides a vent in the rim connecting portion of the injection pump or a fastening portion between the rim connecting portion and the rim water passage, and stores the cleaning water remaining in the injection pump connecting pipe and the rim water passage after the operation of the injection pump. And can be quickly discharged to the discharge hole of the rim.

Hereinafter, an embodiment of an injection pump provided with a pressure control unit and a vent according to the present invention will be described.

<Fourth embodiment>
The injection pump according to the fourth preferred embodiment of the present invention is connected to a ball tap having a conversion part for converting the water supply to the water storage tank and the rim side.

FIG. 23 is a cross-sectional view showing a rim-side water supply device for a toilet bowl using an injection pump according to a fourth embodiment of the present invention, and FIG. 24 is a cross-sectional view showing an injection pump according to the fourth embodiment.

Referring to FIGS. 23 and 24, a ball tap 227 for supplying water for the external water supply pipe 207 is formed inside the water storage tank 210. An air bag 233 is connected to the ball tap, and includes a conversion portion 218 that opens and closes water supply according to the water level and converts the water supply to the water storage tank and the rim side.

A faucet 213 is disposed for operating the operation lever 212 to drain the water filled in the water storage tank 210 into the jet water channel 219 on the main body side. An injection pump 250 according to the fourth embodiment of the present invention is interposed between a rim water passage 223 connected to a rim formed with a large number of discharge holes at the bottom and a connecting pipe 220 on the rim side of the ball tap 227. ing. The injection pump 250 is branched from a suction pipe 221 of the injection pump into a supply pipe 222 and a regulation pipe 263, and a pressure regulation unit 270 is connected to the branched regulation pipe 263. The pressure adjustment unit 270 has a constant water pressure by discharging a part of the supply water into the water storage tank 210 through the outlet 272 when the pressure of the supply water supplied through the suction pipe 221 of the injection pump is high. A fixed amount of cleaning water is supplied to the rim water channel 223.

Referring to FIG. 24 again, an injection pump 250 is interposed between the ball tap connecting pipe 220 and the rim water passage 223, and the injection pump 250 is adjusted with the supply pipe 222 branched from the intake pipe 221 and the intake pipe. The pipe 263, the injection nozzle 251 between the supply pipe 222 and the rim water channel 223, the throat 255, and the expansion pipe 257 and the rim connection portion 260, and between the injection nozzle 251 and the throat 255, An inflow port 253 having a through hole is formed. A pressure adjustment unit 270 is connected to the adjustment pipe 263 branched from the suction pipe 221. The pressure adjusting unit 270 provides an elastic force to the outlet 272 pierced to the outside, the opening / closing plate 274 that opens and closes the outlet 272, and the opening / closing plate 274, and opens and closes the outlet 272 by the water pressure of the suction pipe 221. It is comprised with the elastic body 275 which adjusts. The initial force of the elastic body 275 can be set to be the same as the force generated by the product of the cross-sectional area of the adjustment pipe 263 and the water pressure when the water pressure of the suction pipe 221 is optimum. The rim water supply pipe 260 and the rim water channel 223 of the injection pump are fixed by fastening means 262 by inserting a packing 261.

Vents 280 and 280a are formed in the injection pump 250 between the inlet 253 and the rim water channel 223 at positions higher than the normal water level of the water storage tank. The vent holes 280 and 280a may be formed in the rim connection part 260 or may be formed in a fastening part between the rim connection part 260 and the rim water channel 223. The vent holes 280 and 280a may be formed in a part of the rim connecting portion 260 or the fastening portion of the rim water channel 223, or may be formed at the same time. Immediately after the operation of the injection pump 250 is stopped, the vent holes 280 and 280a are discharged by being led out to the rim discharge hole without washing water remaining in the pipe line of the injection pump and in the rim water passage 223. The water level of the water storage tank is lowered and the water tap is prevented from leaking due to the malfunction of the ball tap. When the injection pump is stopped, external air is rapidly flowed through the vents 280 and 280a, and the cleaning water remaining in the rim connection 260 and the rim water passage 223 is quickly discharged through a low-level water tank or rim discharge hole. Can be discharged.

Hereinafter, the operation principle of the rim-side water supply device using the injection pump according to the fourth embodiment of the present invention will be described.

FIG.25 and FIG.26 is sectional drawing which shows the principle of operation of the rim side water supply apparatus using the injection pump which concerns on 4th Embodiment of this invention.

Referring to FIG. 25, when the user starts the cleaning operation with the operation lever, discharge of the cleaning water to the faucet is started. In the ball tap, the injection pump 250 is operated while water supply is started to the intake pipe 221 of the injection pump through the ball tap connection pipe 220, and the rim water channel 223 is mixed with the supply water Qin and the intake flow rate Qs which is the wash water in the water storage tank. A discharge flow rate Qd which is cleaning water is supplied. When the pressure of the water supply flow rate Qin supplied to the suction pipe 221 is appropriate, the opening / closing plate 274 maintains an initial state where the outlet 272 is blocked, and the discharge flow rate Qd, which is cleaning water, is discharged through the injection pump. Water is supplied to the water channel 223.

Referring to FIG. 26, when the pressure of the supply water supplied from the external water supply pipe is high or when the water pressure increases irregularly due to other factors, the water supply supplied to the suction pipe 221 through the ball tap connection pipe 220. The pressure of the flow rate Qin is not uniform or can be increased. At this time, the elastic body 275 contracts due to the pressure of the water supply flow rate Qin, the opening / closing plate 274 is retracted, and the outlet 272 is opened. At the same time as the outlet 272 is opened, a part of the supply water Qe is discharged, and the internal pressure of the supply pipe 222 branched from the suction pipe 221 decreases. The elastic body 275 contracts or expands due to the pressure of the supply water, and discharges an appropriate amount of supply water to the water storage tank, whereby the injection flow rate Qj to the supply pipe 22 can be kept constant. That is, a fixed injection flow rate Qj obtained by removing the discharge flow rate Qe from the feed water flow rate Qin is provided to the supply pipe 222, and the discharge flow rate Qd of the cleaning water supplied to the rim water channel 223 is equal to the injection flow rate Qj supplied from the supply pipe 222. Mixed washing water to which the suction flow rate Qs by the operation of the jut pump is added is supplied.

On the other hand, as shown in FIGS. 25 and 26, when the injection pump is operated, a part of the mixed washing water is discharged through the vents 280 and 280a to the water storage tank. Although it can be determined that the flow rate of the mixed cleaning water supplied to the rim water channel 223 is reduced, the flow rate of the mixed cleaning water is not actually decreased. The reason for this is that the hydraulic pump is operated in a state where the discharge flow rate of the injection pump is reduced by a certain amount due to the water pressure loss generated from the connecting pipe and the rim water channel after the expansion pipe 257 of the injection pump, and the water pressure reduced by the installation of the vent. This is because the discharge flow rate of the injection pump increases by the loss.

<Fifth Embodiment>
An injection pump according to a fifth preferred embodiment of the present invention has a suction port of an injection pump adjacent to a water tank bottom, a rim connecting portion of the injection pump is connected to a rim water channel, and a buoyancy in a space between the injection nozzle and the throat. A ball that can float is placed, and the guide tube is arranged so that the ball can move up and down and stay in a certain area. The inlet of the injection pump is connected to a simple ball tap that opens and closes the water supply according to the water level.

FIG. 27 is a cross-sectional view showing a rim-side water supply device for a toilet bowl using an injection pump according to a fifth embodiment of the present invention.

Referring to FIG. 27, a ball tap 337 for supplying water for the external water supply pipe 307 is formed inside the water storage tank 310. An air bag 333 is connected to the ball tap, and the ball tap is a simple ball tap that opens and closes water supply according to the water level. A faucet 313 is disposed for operating the operation lever 312 to drain the water filled in the water storage tank 310 into the jet water channel 329 on the main body side, and a number of discharge holes are connected to a rim formed at the bottom. An injection pump is interposed between the rim water channel 323 and the rim side supply pipe 320 of the ball tap 327.

The injection pump is branched from a suction pipe of the injection pump into a supply pipe and a control pipe, and a pressure control unit 370 is connected to the branched control pipe. When the pressure of the supply water supplied through the suction pipe of the injection pump is high, the pressure adjustment unit 370 discharges a part of the supply water to the inside of the water storage tank 310 through the outlet 372 so as to have a constant water pressure. Wash water is supplied to the rim water channel 323.

An inflow port is formed between the injection nozzle of the injection pump and the throat 355, and a ball guide tube 363 is extended upward by a predetermined length between the injection nozzle and the throat 355. A ball 369 is inserted into the guide tube 363.

A vent 380 is formed between the inlet and the rim water channel 323 at a position higher than the normal water level of the water storage tank. The vent 280 may be formed in the rim connection part 359 or may be formed in a fastening part between the rim connection part 359 and the rim water channel 323. The vent 280 may be formed in any part of the rim connecting portion 359 or the fastening portion of the rim water channel 323 or at the same time. Immediately after the operation of the injection pump is stopped, the vent 380 is stored in the storage tank by the cleaning water remaining in the connection pipe line of the injection pump and in the rim water channel 323 being led out to the rim discharge hole without flowing into the water storage tank. The water level becomes low, and the function of preventing water leakage due to malfunction of the ball tap is achieved.

FIG. 28 is a cross-sectional view for explaining the function of the vent of the injection pump according to the fifth embodiment of the present invention.

Referring to FIG. 28, when the operation of the injection pump 350 stops, the external air 391 rapidly flows into the rim water passage through the injection pump vent, and the cleaning water 393 remaining inside the injection pump and the rim water passage. Can be quickly discharged through a low water reservoir or rim discharge hole 325. Reference numeral '392' not described indicates air that flows into the rim water channel.

The present invention described above is not limited by the above-described embodiment and attached drawings, and various replacements, modifications, and changes can be made without departing from the technical idea of the present invention. It is obvious to those with ordinary knowledge in the field.

As described above, the performance of the rim washing can be enhanced through the flow rate amplification by interposing the injection pump between the ball tap and the rim water channel of the water tank-integrated western toilet.

The rim-side water supply device of the present invention can maintain a constant flow rate discharged from the injection pump and can maintain a constant supply amount of cleaning water required for rim cleaning. The consumption of washing water can be reduced.

Moreover, the washing water remaining in the injection pump connecting pipe and the rim water channel after the operation of the injection pump can be quickly discharged to the water storage tank and the discharge hole of the rim.

It is sectional drawing which shows the water tank integrated-type western toilet concerning the prior art. It is sectional drawing which shows the inside of the water tank of the water tank integrated type toilet bowl based on the prior art. It is sectional drawing which shows the rim | limb side water supply apparatus using the injection pump which concerns on 1st Embodiment of this invention. Sectional drawing which shows the rim side water supply apparatus using the injection pump which concerns on 2nd Embodiment of this invention, It is sectional drawing which shows the structure of the injection pump which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows the working principle of the rim | limb side water supply apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows the working principle of the rim | limb side water supply apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows the working principle of the rim | limb side water supply apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows the working principle of the rim | limb side water supply apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows the working principle of the rim | limb side water supply apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows the rim side water supply apparatus using the injection pump which concerns on 3rd Embodiment of this invention. It is sectional drawing which shows the structure of the injection pump which concerns on 3rd Embodiment of this invention. It is sectional drawing which shows the principle of operation of the rim side water supply apparatus which concerns on 3rd Embodiment of this invention. It is sectional drawing which shows the principle of operation of the rim side water supply apparatus which concerns on 3rd Embodiment of this invention. It is sectional drawing which shows the principle of operation of the rim side water supply apparatus which concerns on 3rd Embodiment of this invention. It is sectional drawing which shows the principle of operation of the rim side water supply apparatus which concerns on 3rd Embodiment of this invention. It is sectional drawing which shows the principle of operation of the rim side water supply apparatus which concerns on 3rd Embodiment of this invention. It is a fragmentary figure which shows the replenishment water supply means of the rim side water supply apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing cut | disconnected along BB of FIG. It is a fragmentary figure which shows the length adjustment means of the injection pump which concerns on embodiment of this invention. It is sectional drawing cut | disconnected along AA of FIG. It is sectional drawing which shows the toilet bowl equipped with the injection pump which concerns on embodiment of this invention. It is sectional drawing which showed the rim side water supply apparatus of the toilet bowl using the injection pump which concerns on 4th Embodiment of this invention. It is sectional drawing which shows the injection pump which concerns on 4th Embodiment of this invention. It is sectional drawing which shows the operating principle of the rim | limb side water supply apparatus which concerns on 4th Embodiment of this invention. It is sectional drawing which shows the operating principle of the rim | limb side water supply apparatus which concerns on 4th Embodiment of this invention. It is sectional drawing which shows the rim side water supply apparatus of the toilet bowl using the injection pump which concerns on 5th Embodiment of this invention. It is sectional drawing explaining the function of the vent hole of the injection pump which concerns on 5th Embodiment of this invention.

Claims (16)

A water tank that holds a certain amount of washing water through a ball tap that opens and closes the water supply according to the internal water level,
A plurality of discharge holes are formed in the inner peripheral surface of the rim through which the rim cleaning water is supplied through the ball tap connecting pipe and the rim water channel, and are provided at a predetermined interval. A toilet body in which a wash space connected through a waterway is formed;
A faucet that opens and closes the jet water channel outlet at the bottom of the water tank by the operation of an operation lever;
An injection nozzle, a throat, an expansion pipe, and an inlet between the injection nozzle and the throat for supplying mixed cleaning water, which is a combination of the water supply and the cleaning water in the water storage tank, to the rim water channel between the ball tap connecting pipe and the rim water channel An injection pump composed of
A ball guide tube into which a ball is inserted is extended upward by a predetermined length between the spray nozzle and the throat, and the water supply is switched to the storage tank and the rim side according to the water level. Toilet bowl. 2. The ball according to claim 1, wherein when the ball in the ball guide pipe changes the water supply to the water storage tank side, a small amount of replenishing water flows out to the rim water channel through an outer clearance provided in the throat in contact with the ball. Western toilet. A water tank that holds a certain amount of washing water through a ball tap that opens and closes the water supply according to the internal water level,
A plurality of discharge holes are formed in the inner peripheral surface of the rim through which the rim cleaning water is supplied through the ball tap connecting pipe and the rim water channel, and are provided at a predetermined interval. A toilet body in which a wash space connected through a waterway is formed;
A faucet that opens and closes the jet water channel outlet at the bottom of the water tank by the operation of an operation lever;
Between the ball tap connecting pipe and the rim water channel, there is a jet nozzle, a throat, an expansion pipe, and a flow between the spray nozzle and the throat for supplying mixed cleaning water, which is a combination of water supply and cleaning water in the water storage tank, to the rim water channel. An injection pump composed of an inlet,
An opening / closing film is formed at a lower portion between the expansion pipe and the rim connecting portion, and an air bag is connected to the opening / closing film so as to be opened / closed according to the water level of the water storage tank. A western toilet that changes water supply to the water tank and the rim. When the opening / closing membrane changes the water supply to the water storage tank side, a small amount of replenishing water flows out into the rim water channel through a gap prepared between the opening / closing membrane and the inner peripheral surface of the rim connecting portion. Item 4. A Western toilet according to Item 3. A water tank that holds a certain amount of washing water through a ball tap that opens and closes the water supply according to the internal water level,
A plurality of discharge holes are formed in the inner peripheral surface of the rim through which the rim cleaning water is supplied through the ball tap connecting pipe and the rim water channel, and are provided at a predetermined interval. A toilet body in which a wash space connected through a waterway is formed;
A faucet that opens and closes the jet water channel outlet at the bottom of the water tank by the operation of an operation lever;
Between the ball tap connecting pipe and the rim water channel, there is a jet nozzle, a throat, an expansion pipe, and a flow between the spray nozzle and the throat for supplying mixed cleaning water, which is a combination of water supply and cleaning water in the water storage tank, to the rim water channel. An injection pump composed of an inlet,
Dividing between the throat of the injection pump and the expansion pipe, so that an overlapping portion of the inner peripheral surface of the expansion pipe is formed on the outer peripheral surface of the throat, and forming a plurality of protrusions on one side of the outer peripheral surface of the throat, A toilet bowl characterized in that a length adjusting means composed of a clasp is formed on the inner peripheral surface of the facing expansion tube. A suction pipe to which water supply is supplied;
A supply pipe and a control pipe branched from the suction pipe;
An injection nozzle connected to the supply pipe and ejecting water;
A throat disposed opposite to the spray nozzle;
A series of expansion tubes and rim connections connected to the throat;
A through hole is provided between the spray nozzle and the throat so that mixed cleaning water composed of the water supplied from the spray nozzle and the cleaning water in the water storage tank flows into the throat in response to the water jet from the spray nozzle. An inflow port,
An injection pump for a toilet bowl, which is connected to the adjustment pipe and includes a pressure adjustment unit that supplies a fixed amount of water to the supply pipe. The pressure adjustment unit includes:
An outlet vented to the outside,
An opening and closing plate for opening and closing the outlet;
The jet pump for a toilet according to claim 6, comprising an elastic body that provides an elastic force to the opening and closing plate and adjusts the opening and closing of the outlet according to the water pressure of the suction pipe. 8. The ocean according to claim 7, wherein when the pressure of the water supplied to the suction pipe is higher than the elastic force of the elastic body, the opening / closing plate moves backward and the supply water flows out through the outlet. Urinal injection pump. 7. The toilet pump according to claim 6, further comprising a vent hole formed in the rim connecting portion. A ball guide tube into which a ball is inserted is extended upward by a predetermined length between the spray nozzle and the throat, and the water supply is switched to the water storage tank and the rim side according to the water level. Item 7. The toilet pump injection pump according to Item 6. A supply pipe to which water supply is supplied;
An injection nozzle connected to the supply pipe and ejecting water;
A throat disposed opposite to the spray nozzle;
A series of expansion tubes and rim connections connected to the throat;
A through hole is provided between the spray nozzle and the throat so that mixed cleaning water composed of the water supplied from the spray nozzle and the cleaning water in the water storage tank flows into the throat in response to the water jet from the spray nozzle. An inflow port,
A urinal jet pump, wherein the rim connecting portion includes a vent hole formed at a position higher than a normal water level of the water storage tank. A water tank that holds a certain amount of washing water through a ball tap that opens and closes the water supply according to the internal water level,
A plurality of discharge holes are formed in the inner peripheral surface of the rim through which the rim cleaning water is supplied through the ball tap connecting pipe and the rim water passage, and are provided at a predetermined interval, and the lower portion includes a lower portion of the water storage tank and a jet water passage. A toilet body formed with a wash space connected through,
A faucet that opens and closes the jet water channel outlet at the bottom of the water tank by the operation of an operation lever;
A suction pipe, an injection nozzle, a throat, an expansion pipe, a rim connection part, an injection nozzle, and a throat for supplying mixed cleaning water, which is a combination of the water supply and the cleaning water in the water storage tank, between the ball tap connection pipe and the rim water path. An injection pump composed of an inlet between
A toilet bowl comprising: an adjustment pipe branched from between the suction pipe and the injection nozzle; and a pressure adjustment unit connected to the adjustment pipe to supply a fixed amount of water to the injection nozzle. The pressure adjustment unit includes:
An outlet vented to the outside,
An opening and closing plate for opening and closing the outlet;
13. The toilet bowl according to claim 12, wherein the toilet bowl is made of an elastic body that provides an elastic force to the opening / closing plate and adjusts the opening / closing of the outlet according to the water pressure of the suction pipe. 14. The ocean according to claim 13, wherein when the pressure of the water supplied to the suction pipe is higher than the elastic force of the elastic body, the open / close plate retreats and supply water flows out through the outlet. Toilet bowl. The toilet bowl according to claim 11, further comprising a vent hole formed between the rim connecting portion and the rim water channel. A ball guide tube into which a ball is inserted is extended upward by a predetermined length between the spray nozzle and the throat, and water supply is switched to the water storage tank and the rim side according to the water level. Item 12. A toilet according to Item 11.

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