TWI804453B - Water supply system for toilet tank - Google Patents

Abstract

A water supply system for a toilet water tank includes a trigger switch, a water inlet pipe set and a drain pipe set. The water inlet pipe set has a branch water channel and a valve element, which is controlled by the trigger switch to make the branch water channel conduct or stop. The drainpipe set has a main drainpipe, an overflow manifold connected to the main drainpipe, a drain valve part, and a drain valve drive part, the drain valve part includes a rubber valve seat, and a water stop valve cover, The rubber valve seat has a baffle, and the baffle has a first state in which the main drain pipe and the overflow manifold are not affected by the water entering the main drain pipe, and a first state that is affected by the water entering the main drain pipe. In the second state of blocking the connection between the main drain pipe and the overflow manifold, the drain valve driver drives the water stop valve cover when the branch waterway is conducted.

Description

Water supply system for toilet tank

The invention relates to a water supply system, in particular to a water supply system providing a fast water discharge function.

In the existing toilet flushing technology, fast drainage has become an important technology, because if the toilet is operated and fails to discharge quickly, it will lead to hygienic problems such as reduced air quality in the toilet or increased risk of user contact with excrement . In addition, in some special environments, if the toilet itself does not have the function of quick drainage, it will cause more impact than sanitary problems. For example, if the toilet installed in the prison does not have the function of quick drainage, it will be It may cause detainees to deliberately commit suicide through the water retained in the toilet, or the toilet is installed in a mental hospital. In order to prevent the mentally ill from eating the excrement in the toilet by mistake, it is necessary to quickly drain the water after the mentally ill. Based on the above reasons, quick drainage has become an important function that the toilet must possess.

In view of this, in the existing toilet flushing technology, trigger switches and related modules are often installed on the toilet, and the purpose of rapid water discharge after the user goes to the toilet is achieved in an inductive manner. The relevant content can be found in CN 202430798U.

However, although CN 202430798U discloses three embodiments, the embodiments disclosed in this case all use the solenoid valve as the main driver to drive the flush valve, and use the solenoid valve to directly actuate the rotating shaft or the sliding rod. The power of the valve itself resists the water pressure of the flush valve to open the flush valve, which not only depends on the performance of the solenoid valve, but also has the possibility of failure in the long run, so that it is impossible to open the flush valve quickly and achieve rapid operation. purpose of drainage.

The main purpose of the present invention is to solve the problem that the conventional toilet flushing technology cannot reliably provide the fast drainage function.

In order to achieve the above purpose, the present invention provides a water supply system for a toilet tank, comprising a trigger switch, a water inlet pipe set, and a drain pipe set, the trigger switch is set in one of the following groups: a toilet tank, a The toilet seat cushion is a component independent of a toilet, the water inlet pipe set is arranged in the toilet tank, the water inlet pipe set has a main water inlet connected to the space inside the toilet water tank, and a branch water channel connected to the main water inlet, And a valve part, the valve part is connected with the trigger switch and is controlled by the trigger switch to make the branch waterway conduct or stop. The overflow manifold of the main drain pipe, a drain valve member, and a drain valve driver attached to the overflow manifold and connected to the branch waterway, the drain valve member includes a rubber rubber A valve seat, and a water stop valve cover that fits with the rubber valve seat and is pivotally connected to the overflow manifold. The rubber valve seat has a baffle extending to the junction of the main drain pipe and the overflow manifold. The baffle The sheet has a first state in which the main drain pipe and the overflow manifold are not affected by the water entering the main drain pipe, and a first state that is affected by the water entering the main drain pipe and blocks the connection between the main drain pipe and the overflow manifold In the second state, the drain valve driver drives the water stop valve cover when the branch waterway is conducted.

In one embodiment, the drain valve driver includes a driving rod connected to the water stop valve cover, a manual operation part facing the driving rod and capable of pushing the driving rod, and a side facing the driving rod and capable of pushing The driving part of the driving rod, the direction of the force provided by the manual operation part to the driving rod is different from the pushing part, and the pushing part is connected to the branch waterway, and the pushing part includes a body, which communicates with the overflow manifold and the A water inlet inside the body, and a push-up piece arranged in the body and pushed by the water flow.

In one embodiment, the pushing member has a spring member disposed in the body and connected to the pushing member.

In one embodiment, the body is formed with a plurality of water outlets whose horizontal height is higher than the water inlet.

In one embodiment, the water inlet pipe set has a connecting pipe as a part of the branch water channel and connected to the drain valve driving member.

In one embodiment, the water inlet pipe set includes a plurality of pipe fittings connected in sequence, one of the pipe fittings forms a branch nozzle as part of the branch water channel, and the valve part includes a valve attached to the pipe fittings. An electromagnetic valve in one of the pipes, and an inner conduit arranged in at least one of the pipes and connected to the branch nozzle.

In one embodiment, the inner conduit has a hollow core tube, and an outer ring part connected to the hollow core tube, the outer ring part includes a water outlet facing the branch nozzle, and at least one tube connected to the hollow core tube Connecting ribs, and a water passage arranged in the at least one connecting rib and communicating with the water outlet and the hollow core pipe.

In one embodiment, one of the pipe fittings that provides the attachment of the solenoid valve has an outer pipe, and an inner pipe disposed within the outer pipe and providing the inner conduit, the outer pipe is formed with a facing The first opening of the solenoid valve, the inner tube is formed to face the second opening of the solenoid valve, and the second opening is located in the first opening.

In one embodiment, the baffle is replaced by a baffle ring formed integrally with the rubber valve seat.

In one embodiment, the side of the rubber valve seat facing the water stop valve cover is an inclined surface.

In one embodiment, the baffle has a first surface facing the junction of the main drain pipe and the overflow manifold, and a second surface on the opposite side of the first surface, the first surface is an inclined surface, and the The second face is a straight face.

In one embodiment, the rubber valve seat has a seat opening connected to the second surface, and there is no difference between the seat opening and the second surface.

According to the content of the aforementioned invention, compared with the conventional technology, the present invention has the following characteristics: the present invention controls the valve element when the trigger switch is operated, and the valve element only controls the conduction or non-conduction of the branch water channel, rather than as a Drive the main driver of the water stop valve cover, so that the present invention does not need to rely too much on the power of the valve itself, and instead uses the power generated by the water flow to drive the drain valve driver, and then drives the water stop valve cover, thereby achieving The purpose of fast water discharge is to improve the problem that the conventional toilet flushing technology relies too much on the performance of the solenoid valve itself and may fail under long-term use, so that it cannot really provide the fast water discharge function. In addition, in the second state of the present invention, the baffle shields the connection between the main drain pipe and the overflow manifold, so as to reduce the air resistance of the water in the toilet tank to discharge from the main drain pipe, which is beneficial to improve the drain. water efficiency.

Detailed description and technical content of the present invention, now just explain as follows with respect to matching drawing:

Hereinafter, the terms "first" and "second" used for components are intended to distinguish these components, and are not used to limit the sequence of these components.

Please refer to Fig. 1, Fig. 5 and Fig. 6, the present invention provides a kind of water supply system 20 of toilet water tank, and this water supply system 20 is applied on a toilet water tank 30, and provides this toilet water tank 30 drainage function, and this water supply system 20 comprises A trigger switch 21 , a water inlet pipe set 22 and a drain pipe set 24 . The trigger switch 21 is not limited to be set on the toilet tank 30, but can be set at any position according to the requirement. For example, the trigger switch 21 can be directly set on a wall adjacent to a toilet (not shown in the figure) (Fig. (not shown in the middle) to facilitate the operation of the trigger switch 21 after going to the toilet. The water inlet pipe set 22 is located in the toilet tank 30. The water inlet pipe set 22 has a main water inlet 221, a branch water channel 222 and a valve 223. The main water inlet 221 communicates with the inner space of the toilet water tank 30 and provides automatic Water from outside the toilet water tank 30 flows in to supply water to the toilet water tank 30 , and the branch water channel 222 communicates with the main water inlet channel 221 . It should be noted that the divergent waterway 222 will not affect the circulation of water in the main waterway 221 and the water supply of the main waterway 221 to the toilet tank 30 . The valve element 223 is connected to the trigger switch 21 , and the valve element 223 is controlled by the trigger switch 21 to determine whether the divergent channel 222 is connected or not. In one embodiment, the water inlet pipe set 22 has a connecting pipe 224, the connecting pipe 224 is a part of the branch water channel 222 and connected to the drain pipe set 24, so as to form the communication between the branch water channel 222 and the drain pipe set 24 , In addition, the connecting pipe 224 may be a hose.

As above, the drain pipe set 24 is disposed in the toilet tank 30 , and the drain pipe set 24 has a main drain pipe 241 , an overflow manifold 242 , a drain valve 243 and a drain valve driver 244 . Please refer to FIG. 1 , FIG. 8 and FIG. 9 , the main drain pipe 241 communicates with the outside of the toilet tank 30 and provides a drainage function, and the overflow manifold 242 communicates with the main drain pipe 241 . The drain valve member 243 includes a water stop valve cover 245 and a rubber valve seat 246. The water stop valve cover 245 is pivotally connected to the overflow manifold 242. The water stop valve cover 245 is matched with the rubber valve seat 246 and can be opposite to each other. The rubber valve seat 246 opens and closes, and the rubber valve seat 246 is arranged on the port of the main drain pipe 241. In one embodiment, the side of the rubber valve seat 246 facing the water stop valve cover 245 is a slope, so that the stop valve The water valve cover 245 is inclined after being closed with the rubber valve seat 246 . In addition, the rubber valve seat 246 is made of rubber material and is different from the conventional hard material. The rubber valve seat 246 has a baffle 247, which is close to the inner wall of the main drain pipe 241 and faces The junction of the main drain pipe 241 and the overflow manifold 242 . On the other hand, the drain valve driver 244 is attached to the overflow manifold 242 and connected to the branch water channel 222. The function of the drain valve driver 244 is to receive the water from the branch water pipe 222 and drive the water stop. valve cover 245 .

Continuing, please refer to FIG. 1 to FIG. 6 , and the operation of the water supply system 20 will be described below. Assuming that initially, the water supply system 20 is as shown in Figure 1, the trigger switch 21 has not been operated, then the valve member 223 makes the branch water channel 222 unconducted, and at the same time, the drain valve driver 244 is not affected, the The water stop valve cover 245 is not opened relative to the rubber valve seat 246 , and the water stop valve cover 245 blocks the communication between the main drain pipe 241 and the inner space of the toilet tank 30 . Please refer to Fig. 2, when the trigger switch 21 is operated, the trigger switch 21 controls the valve member 223 and makes the branch water channel 222 conduct. At this time, the branch water channel 222 provides external water inflow and forms a water flow 40. The water flow 40 travels through the branch channel 222 and flows to the drain valve driver 244, the drain valve driver 244 receives the water flow 40 and is pushed by the water flow 40, and the water flow 40 will drive the drain valve driver 244 during the process Water stop valve cover 245, at the same time, the water stop valve cover 245 is opened relative to the rubber valve seat 246, and allows the space in the main drain pipe 241 to communicate with the space in the toilet tank 30, so that the water in the toilet tank 30 can The water flows into the main drain pipe 241 and is discharged to the outside of the toilet tank 30 .

The following is an example of the practical application of the present invention. The water supply system 20 can actually be applied to a sitting toilet (not shown in the figure). During implementation, the trigger switch 21 is arranged on a toilet seat cushion (not shown in the figure). , and the water inlet pipe set 22 and the drain pipe set 24 are arranged in a water tank (not shown in the figure) of the sitting toilet, when a user (not shown in the figure) sits on the toilet seat as When the toilet is finished and gets up and leaves the toilet seat, the trigger switch 21 senses the user's departure and sends a control signal (not shown in the figure), the valve 223 receives the control signal and changes its state based on the control signal, Make the divergent waterway 222 open so that water can flow into the divergent waterway 222, so as to achieve the above-mentioned water flow 40 to push the drain valve driver 244 and drive the water stop valve cover 245, and then achieve the effect of quickly draining water after going to the toilet .

From the above, it can be seen that the valve member 223 of the present invention only controls the conduction of the branch water channel 222, rather than being the main driver of the water stop valve cover 245, so that the present invention does not need to rely too much on the power of the valve member 223 itself. And use the power generated by the water flow 40 to push the drain valve driver 244, and then drive the water stop valve cover 245, so as to achieve the purpose of rapid water discharge, improve the conventional toilet flushing technology that relies too much on the performance of the solenoid valve itself and the long-term The problem that the rapid water discharge function cannot be provided for fear of failure under use.

Further, the baffle 247 has a first state in which the main drain pipe 241 and the overflow manifold 242 remain in communication without being affected by the water entering the main drain pipe 241, and a first state that is connected to the overflow manifold 242 by the main drain pipe 241. Affect and block the second state where the main drain pipe 241 and the overflow manifold 242 are connected. In detail, when the water does not flow into the main drain pipe 241 from the toilet tank 30, the baffle 247 does not completely close the connection between the main drain pipe 241 and the overflow manifold 242 and there is a gap to allow the water to flow into the main drain pipe 241. The water in the overflow manifold 242 flows out of the main drain pipe 241 through the junction of the main drain pipe 241 and the overflow manifold 242 . On the other hand, when water (as shown in the label 51) flows into the main drain pipe 241 from the toilet tank 30, the baffle plate 247 will be affected by the water (shown in the label 51), and block the flow from the main drain pipe 247. 241 and the overflow manifold 242 join the air resistance, and make the water (as shown by 51 ) flow into the main drain pipe 241 smoothly, and the 50 in FIG. 9 represents the air resistance blocked by the baffle 247 . The present invention specifically reduces the air resistance when the water in the toilet tank 30 is discharged from the main drain pipe 241 through the baffle 247 , and improves the drainage efficiency. In one implementation, the blocking piece 247 can also be replaced by a blocking ring integrally formed by the rubber valve seat 246 .

Please refer to Fig. 3, Fig. 4 and Fig. 8, the drain valve driving part 244 of the present invention includes a driving rod 248, a pushing part 249, and a manual operation part 250, the driving rod 248 is connected with the water stop valve part 245 and Form a synchronous relationship with the water stop valve cover 245, the pusher 249 faces the driving rod 248 and can push the driving rod 248, the manual operation part 250 faces the driving rod 248 and can push the driving rod 248, and The direction of the force provided by the manual operation member 250 to the drive lever 248 is different from that of the push member 249 . To further illustrate, the drain valve driver 244 includes at least two connecting columns 251, the driving rod 248 is connected to the water stop valve cover 245 and pivotally connected to the two connecting columns 251, the pushing member 249 and the manual operation member 250 are respectively It is located on opposite sides of the position where the driving rod 248 is pivotally connected to the two connecting columns 251, so the direction of the force of the driving member 249 pushing the driving rod 248 will be different from the direction in which the manual operation part 250 pushes the driving rod 248, as shown in Fig. The reference numeral 60 in 4 represents the force direction of the driving member 249 pushing the drive rod 248 , and the reference mark 61 represents the force direction of the manual operation member 250 pushing the drive rod 248 . In addition, it should be understood that the application of the water supply system 20 of the present invention is not limited to use one of the pushing member 249 or the manual operating member 250 as the main operating component for pushing the driving member 248 . In addition, the manual operating member 250 of the present invention can be a lever attached to the toilet tank 30 , or a pressing structure arranged above the toilet tank 30 . In one embodiment, the manual operation part 250 has at least two buttons 260, and the two buttons 260 are used to push the manual operation part 250 and then push the driving lever 248, and provide the flushing function of the water supply system 20 with different water volumes. .

On top of that, the pushing member 249 includes a body 252, a water inlet 253, and a push-up member 254. The water inlet 253 communicates with the overflow manifold 242 and the inside of the body 252, and makes the water coming from the overflow manifold 242 The water flow 40 can pass to flow into the body 252, the push-up member 254 is arranged in the body 252, the push-up member 254 receives the water flow 40 flowing into the body 252 and is pushed by the water flow 40 to push the driving rod 248 . It should be noted that when the push-up member 254 of the present invention pushes the driving rod 248 and stops accepting the water flow 40, the driving rod 248 will move on the water stop valve cover based on the synchronous relationship with the water stop valve cover 245. When 243 is closed relative to the rubber valve seat 246, it is driven by the water stop valve cover 243 to push the push-up member 254 to complete the return action of the push-up member 254. In one embodiment, in order to improve the return efficiency of the pushing member 254 , the pushing member 249 has a spring member 255 disposed in the body 252 and connected to the pushing member 254 . In addition, in one embodiment, the body 252 is formed with a plurality of water outlets 256 , the water outlets 256 are higher in level than the water inlet 253 , and the water outlets 256 allow the water in the body 252 to flow out of the body 252 .

Please refer to FIGS. 5 to 7 , the water inlet pipe set 22 of the present invention includes a plurality of pipes 225 , one of the pipes 225 forms a branch nozzle 226 , and the branch nozzle 226 is a part of the branch water channel 222 . On the other hand, the valve element 223 includes a solenoid valve 227 and an inner conduit 228, the solenoid valve 227 is attached to one of the pipe elements 225, the inner conduit 228 is arranged on at least one of the pipe elements 225 and This branch nozzle 226 communicates. Further, the inner conduit 228 has a hollow core tube 229 and an outer ring 230 , the inner space of the hollow core tube 229 serves as a part of the branch channel 222 , and the outer ring 230 communicates with the hollow core tube 229 . The outer ring 230 includes a water outlet 231, at least one connecting rib 232 and a water channel 233, the water outlet 231 communicates with the at least one connecting rib 232 and faces the branch nozzle 226, and the water port 231 serves as the branch channel 222, the at least one connecting rib 232 is connected to the hollow core tube 229, the at least one connecting rib 232 and the inner wall of the outer ring 230 jointly form at least one water inlet channel 234, and the water inlet channel 234 serves as the main water inlet channel Part of 221. In addition, the water passage 233 is disposed in the at least one connecting rib 232 facing the branch nozzle 226 and communicates with the water passage 231 and the hollow core pipe 229 . The water passage 233 is a part of the branch water passage 222 . Further, one of the pipe fittings 225 that provides the electromagnetic valve 227 to be attached has an outer tube 235 and an inner tube 236, the outer tube 235 is formed with a first opening 237 facing the electromagnetic valve 227, and the inner tube 235 is formed to face the electromagnetic valve 227. The tube 236 is located in the outer tube 235 and communicates with the inner conduit 228, and the inner space of the inner tube 236 is a part of the branch waterway 222, and the inner tube 236 is formed with a second opening 238 facing the solenoid valve 227. The second opening 238 is located in the first opening 237 .

From the above, in one embodiment, the divergent channel 222 of the present invention is one of the inner space of the inner tube 236 , the inner space of the hollow core tube 229 and the at least one connecting rib 232 where the channel 231 is formed. The inner space is formed and communicates with the second opening 238 , the water channel 233 , the water outlet 231 , the branch nozzle 226 , and finally the connecting pipe 224 in sequence. The main water inlet 221 is formed by the space between the outer wall of the inner tube 236 and the outer tube 235, the outer wall of the hollow core tube 229 and the space between at least one of the tubes 225 that provide the inner conduit 228. , and the water inlet channel 237 is connected in sequence.

Please refer to FIG. 8 and FIG. 9, the baffle 247 of the present invention has a first surface 257 and a second surface 258, the first surface 257 is an inclined surface and faces the connection between the main drain pipe 241 and the overflow manifold 242 At the position, the second surface 258 is a flat surface and is located on the opposite side of the first surface 257, and the second surface 258 receives the water flowing from the toilet tank 30 into the main drain pipe 241 (as indicated by reference number 51). Further, the rubber valve seat 246 has an opening 259, and the seat opening 259 is connected to the second surface 258. In one embodiment, in order to improve the smoothness of the flow of water (shown as 51), the seat opening 259 is connected to the The second surface 258 does not have a level difference.

In summary, it is only a preferred embodiment of the present invention, and should not limit the scope of the present invention, that is, all equivalent changes and modifications made according to the patent scope of the present invention should still belong to the present invention patent coverage.

20: Water supply system

21: Trigger switch

22: Water inlet pipe group

221: Main water inlet

222: divergent waterway

223: Valve

224: connecting pipe

225: pipe fittings

226: branch nozzle

227: Solenoid valve

228: inner catheter

229: hollow core tube

230: outer ring

231: water outlet

232: Connecting ribs

233: Waterway

234: water inlet channel

235: outer tube

236: inner tube

237: first opening

238: second opening

24: Drain pipe group

241: Main Drain

242: Overflow Manifold

243: drain valve

244: drain valve driver

245: water stop valve cover

246: rubber valve seat

247: Bracket

248: drive rod

249: Pusher

250: manual operation

251: connecting column

252: Ontology

253: water inlet

254: Push up parts

255: spring parts

256: water outlet

257: first side

258: second side

259: seat opening

260: button

30: Toilet tank

40: water flow

50: air resistance

51: water

60: Force direction

61: Force direction

Fig. 1 is a schematic structural diagram of a water supply system according to an embodiment of the present invention. Fig. 2 is an implementation schematic diagram of a water supply system according to an embodiment of the present invention. Fig. 3 is a schematic cross-sectional view of the structure of the drain valve driver according to an embodiment of the present invention. Fig. 4 is a schematic cross-sectional view of the structure of the drain valve driving member according to another embodiment of the present invention. Fig. 5 is a schematic cross-sectional view (1) of the structure of the water inlet pipe group according to an embodiment of the present invention. Fig. 6 is a schematic cross-sectional view (2) of the structure of the water inlet pipe group according to an embodiment of the present invention. Fig. 7 is a schematic cross-sectional view of the structure of the water inlet pipe group along the line A-A according to an embodiment of the present invention. Fig. 8 is a schematic structural diagram of a drain valve according to an embodiment of the present invention. Fig. 9 is a schematic diagram of the implementation of the drain valve according to an embodiment of the present invention.

20: Water supply system

21: Trigger switch

22: Water inlet pipe group

223: Valve

224: connecting pipe

225: pipe fittings

24: Drain pipe group

241: Main Drain

242: Overflow Manifold

244: drain valve driver

245: water stop valve cover

246: rubber valve seat

248: drive rod

249: Pusher

250: manual operation

251: connecting column

30: Toilet tank

255: Assembly structure

40: water flow

Claims (12)

A water supply system for a toilet tank, comprising: a trigger switch set in one of the following groups: a toilet tank, a toilet seat cushion, a component independent of a toilet; a water inlet pipe set set in the toilet In the water tank, the water inlet pipe set has a main water channel that communicates with the inner space of the toilet tank, a branch water channel that communicates with the main water channel, and a valve that is connected to the trigger switch and controlled by the trigger switch to make the and a drainage pipe set, which is located in the toilet tank, and the drainage pipe set has a main drain pipe, an overflow manifold connected to the main drain pipe, a drain valve member, and a The overflow manifold is connected with the drain valve driving part of the branch waterway, and the drain valve part includes a rubber valve seat arranged on the port of the main drain pipe, and a rubber valve seat matched with the rubber valve seat and pivotally connected to the overflow manifold The water stop valve cover of the pipe, the rubber valve seat has a baffle extending to the junction of the main drain pipe and the overflow manifold, and the baffle has a block that is not affected by the water entering the main drain pipe so that the main drain pipe and the overflow manifold The first state in which the overflow manifold remains connected, and the second state in which the connection between the main drain pipe and the overflow manifold is blocked due to the influence of water entering the main drain pipe. The water stop valve cover. The water supply system of the toilet water tank as described in Claim 1, wherein the drain valve driving part includes a driving rod connected to the water stop valve cover, a manual operation part facing the driving rod and capable of pushing the driving rod, and One side faces the drive rod and can push the pusher of the drive rod. The direction of the force provided by the manual operation part to the drive rod is different from that of the pusher. The pusher is connected to the branch waterway. The pusher includes a body A water inlet connecting the overflow manifold with the inside of the body, and a pusher arranged in the body and pushed by the water flow liter pieces. The water supply system of the toilet water tank as claimed in item 2, wherein the push member has a spring member arranged in the body and connected to the push-up member. The water supply system of the toilet water tank as claimed in item 3, wherein the body is formed with a plurality of water outlets whose horizontal height is higher than the water inlet. The water supply system of the toilet water tank according to claim 4, wherein the water inlet pipe set has a connecting pipe as a part of the branch water channel and connected to the drain valve driving member. The water supply system of the toilet tank as described in any one of claims 1 to 5, wherein the water inlet pipe set includes a plurality of pipe fittings connected in sequence, and one of the pipe fittings forms a branch pipe as a part of the branch water channel The valve part includes a solenoid valve attached to one of the pipe parts, and an inner conduit arranged in at least one of the pipe parts and connected to the branch nozzle. The water supply system of the toilet water tank as described in Claim 6, wherein the inner conduit has a hollow core pipe, and an outer ring connected to the hollow core pipe, and the outer ring includes a water outlet facing the branch nozzle , at least one connecting rib connecting the hollow core tube, and a water passage arranged in the at least one connecting rib and communicating with the water inlet and the hollow core tube. The water supply system of the toilet water tank as described in claim 7, wherein, one of the pipe fittings provided with the solenoid valve attached has an outer pipe, and an inner pipe provided in the outer pipe and provided with the inner conduit The outer tube forms a first opening to the electromagnetic valve, the inner tube forms a second opening to the electromagnetic valve, and the second opening is located in the first opening. The water supply system for a toilet water tank as claimed in any one of claims 1 to 5, wherein the baffle is replaced by a baffle ring formed integrally with the rubber valve seat. The water supply system of the toilet water tank according to any one of claims 1 to 5, wherein the side of the rubber valve seat facing the water stop valve cover is an inclined plane. The water supply system of the toilet water tank as described in any one of claims 1 to 5, wherein the baffle has a first face facing the junction of the main drain pipe and the overflow manifold, and a first face opposite to the first face The second surface of the side, the first surface is an inclined surface, and the second surface is a straight surface. The water supply system of the toilet tank according to claim 11, wherein the rubber valve seat has a seat opening connected to the second surface, and there is no difference between the seat opening and the second surface.

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