WO2014067351A1

WO2014067351A1 - Mounting structure for one-way valve of pedestal pan

Info

Publication number: WO2014067351A1
Application number: PCT/CN2013/083336
Authority: WO
Inventors: 吴爱民; 许海涛
Original assignee: 李飞宇
Priority date: 2012-10-31
Filing date: 2013-09-11
Publication date: 2014-05-08
Also published as: CN202831138U

Abstract

A mounting structure (1) for a one-way valve (10) of a pedestal pan (2), which comprises the one-way valve (10) and a first annular sealing structure (11). The one-way valve (10) is arranged in a main water delivering pipe (20) of the pedestal pan (2) in a sealing way through the first annular sealing structure (11) so as to separate a flushing water delivering pipe (21) from a jetting water outlet pipe (22) of the pedestal pan (2); a water outlet pipe (101) of the one-way valve (10) is communicated with the flushing water delivering pipe (21); and the first annular sealing structure (11) is sleeved on a surface of an outer wall of the water outlet pipe (101) of the one-way valve (10). When the one-way valve (10) is closed, the main water delivering pipe (20) and the flushing water delivering pipe (21) of the pedestal pan are sealed and isolated in a non-drainage state, and external air cannot enter the main water delivering pipe (20) through the one-way valve (10). In a drainage state, the one-way valve (10) is open so that the main water delivering pipe (20) is communicated with the flushing water delivering pipe (21). The pedestal pan uses the mounting structure for the one-way valve saves water and has a good flushing effect.

Description

Installation structure of one-way valve for toilet

Technical field

The invention belongs to the technical field of toilets, and in particular relates to a mounting structure of a one-way valve for a toilet.

Background technique

As shown in FIG. 1, the toilet body of the flush toilet type 2' of the prior art is generally provided with a total water delivery pipe 20' and a brushed water delivery pipe 21' and a spray water outlet pipe 22' communicating therewith. There is generally a toilet bowl portion and a flange portion, and a spray hole 220' communicating with the jet water outlet pipe 22' is provided at the bottom of the bowl portion; the flange portion is located at an upper portion of the bowl portion, and the flange portion is provided for the toilet bowl The washing surface provides a brushing port 210' of the flushing water that communicates with the brushing water pipe 21'; a water cover is formed at the lowest point of the protrusion of the bowl portion and the toilet 2' siphon pipe 23'; in the toilet 2' body The flushing water tank 3 is usually installed in the flushing water tank 3, and the water inlet mechanism is connected with the water inlet pipe, and the water inlet mechanism is connected with the water inlet pipe. The drain valve passes through the total water delivery pipe 20' and passes through the jet water outlet pipe 22'. The water pipe 21' is respectively connected to the injection hole 220' of the toilet portion and the brushing port 210' of the flange portion to guide the flushing water in the water tank 3 to the injection hole 220' of the bowl portion and the brushing port 210 of the flange portion, respectively. '. The water flows out from the drain valve of the water tank 3 and is divided into two parts. A part of the water flows through the brushing port 210' of the flange portion to wash the washing surface of the body of the toilet bowl 2', and the other part of the water flows through the jetting port 220' to the toilet bowl 2 The bottom of the body is flushed and assists the siphon tube 23' to form a siphon effect. Since the position of the flange portion brushing port is above the water cover, after the water flow is completed to the toilet bowl 2' body flushing operation, the flange portion brushing port communicates with the outside air, and the air is transferred to the total water delivery through the brushing water delivery pipe 21'. Pipe 20'. Under the action of atmospheric pressure, The total water delivery pipe 20' only has water in the pipe portion below the water cover of the toilet bowl, and the air portion above the water cover is air. After the drain valve starts to drain, the water first fills the air portion space in the total water delivery pipe 20' to flow out from the brushing port 210' of the flange portion, so that the brushing water of the washing surface lags behind the injection hole 220'. During the filling of the space occupied by this part of the air, the siphon pipe 23' does not quickly form a siphon, and some of the water has overflowed from the toilet 2's sewage pipe, causing unnecessary waste of water; and because the water in the pipe is The initial stage of drainage is not continuous, and the water flow rate of the injection port 220' is lower than that of the pipe. The presence of the above conditions results in poor performance of the flushing function of the toilet bowl 2' or a waste of water resources.

Summary of the invention

The technical solution of the present invention is as follows:

A mounting structure for a one-way valve for a toilet, comprising a one-way valve, further comprising a first annular sealing structure, wherein the one-way valve is sealed and installed in the total water delivery pipe of the toilet through the first annular sealing structure, The brushing water delivery pipe and the jetting water outlet pipe of the toilet are separated, wherein the outlet pipe of the one-way valve is in communication with the brushing water delivery pipe; the first annular sealing structure is sleeved on the outer wall surface of the outlet pipe of the one-way valve.

In a preferred embodiment of the present invention, the first annular sealing structure comprises a cylindrical first sealing ring and an expansion tube, the first sealing ring is sleeved on the outer wall surface of the expansion tube, and the expansion tube is sleeved at An outer wall surface of the outlet pipe of the one-way valve, wherein a maximum outer diameter of the expansion pipe is greater than a minimum inner diameter of the first seal ring.

In a preferred embodiment of the invention, a second sealing ring is also interposed between the expansion pipe and the outlet pipe of the one-way valve.

In a preferred embodiment of the present invention, the outlet pipe of the one-way valve is provided with a radially outward protrusion, and an inner wall surface of the expansion pipe is provided with a card groove that cooperates with the protrusion.

In a preferred embodiment of the invention, the starting end of the expansion tube is provided with a raised guiding surface for guiding the one-way valve outlet pipe.

In a preferred embodiment of the invention, the first annular sealing structure comprises an annular first sealing ring.

In a preferred embodiment of the invention, the rear portion of the one-way valve is provided with a screw pair for pressing and fixing the one-way valve.

In a preferred embodiment of the present invention, the screw pair includes a screw and a threaded support fixed to the rear wall surface of the total water delivery pipe of the toilet, and one end of the screw abuts against the rear of the check valve. The other end is screwed into the threaded support.

In a preferred embodiment of the invention, the rear portion of the one-way valve is provided with a recess in which one end of the screw abuts.

In a preferred embodiment of the invention, a nut is threaded onto one end of the screw-threaded support and a resilient washer is sleeved between the nut and the threaded support.

The beneficial effects of the invention are:

1. The installation structure of the one-way valve for a toilet of the present invention isolates the jet-out water pipe from the outside atmosphere, so that the air pressure in the jet-out water pipe after the toilet bowl is drained is kept small. The jetting water pipe will have water in it after each flush of water and will not be used up every time. Therefore, the next time the bottom is flushed, the pre-stored water in the sprayed water pipe can directly act on the siphon pipe, saving the stroke of the water, speeding up the siphoning process of the toilet and prolonging the siphon time, and greatly improving the flushing effect;

2. When the water flows through the jetting water pipe to spray the jetting port at the bottom of the toilet body, the water flow does not need to overcome the air resistance in the jetting water pipe, thereby reducing the energy loss of the water flow during the flow, and can avoid the pipe due to the jetting water. The air inside is squeezed out of the water originally left in the siphon pipe, resulting in waste of water resources;

3. The installation structure of the invention is simple, easy to disassemble, convenient for maintenance, and can make the installation of the check valve have good sealing performance.

DRAWINGS

1 is a schematic longitudinal cross-sectional view of a flush toilet 2 of the prior art;

2 is a schematic view showing a mounting structure of Embodiment 1 of the present invention;

Figure 3 is an enlarged schematic view of A in Figure 2;

4 is a schematic view showing a mounting structure of Embodiment 2 of the present invention;

Figure 5 is an enlarged schematic view of B in Figure 4.

detailed description

The technical solutions of the present invention will be further described and described below with reference to the accompanying drawings.

Example 1

Figure 2 As shown in FIG. 3, a mounting structure 1 for a one-way valve 10 for a toilet 2 includes a one-way valve 10, a cylindrical first seal ring 11, an expansion tube 12, and a second seal ring 13. The first sealing ring 11 is sleeved on the outer wall surface of the expansion tube 12, the expansion tube 12 is sleeved on the outer wall surface of the outlet pipe 101 of the one-way valve 10, and the second sealing ring 13 is sleeved on the expansion tube 12 and the one-way valve 10. Between the outer wall surfaces of the water outlet pipe 101, the end of the water outlet pipe 101 of the one-way valve 10 is provided with a radially outward protrusion 1011, and the end of the inner wall surface of the expansion pipe 12 is provided with the protrusion 1011. The card slot 121, the starting end of the expansion tube 12 is provided with a guiding surface 122 for guiding the inclined surface 1011 of the outlet pipe 10 of the check valve 10.

In the toilet 2 of the present embodiment, a partition wall 201 is disposed at the junction of the total water delivery pipe 20 and the brushing water delivery pipe 21, and the partition wall 201 is opened to allow the water outlet pipe 101 of the check valve 10 to extend into the brushing The opening of the water delivery pipe 21 is 2011. The check valve 10 is sealed at the opening 2011 by the first seal ring 11, the expansion tube 12 and the second seal ring 13 to separate the brush water supply pipe 21 and the spray water pipe 22 of the toilet bowl 2. The maximum outer diameter of the first sealing ring 11 sleeved in the opening 2011 is larger than the inner diameter of the opening 2011 of the partition wall 201, and the maximum outer diameter of the expansion tube 12 is larger than the minimum inner diameter of the first sealing ring 11.

The first sealing ring 11 is inserted into the opening 2011 of the partition wall 201 on the body of the toilet bowl 2 to form an interference or transition fit with the opening 2011, and then inserted into the expansion tube 12 to radially expand and compress the first sealing member. Then, the outlet pipe 101 of the one-way valve 10 of the second seal ring 13 is inserted, and the inclined surface 1011 of the end of the outlet pipe 10 of the check valve 10 pushes the expansion pipe 12 through the guide surface 122 of the start end of the expansion pipe 12 to make the expansion pipe 12 is outwardly expanded, and the first sealing ring 11 is further radially expanded and pressed against the opening 2011 of the partition wall 201. When the push reaches the end, the radial protrusion 1011 of the end of the outlet pipe 10 of the check valve 10 The snap groove 121 at the end of the expansion tube 12 is snap-fitted to each other so that the check valve 10 does not easily come out of the expansion tube 12 and the expansion tube 12 is maintained radially expanded and fixed on the partition wall 201 to maintain the check valve 10 and the isolation. The sealed state between the walls 201, so that the toilet water supply pipe 20 and the brushing water delivery pipe 21 are sealed and isolated in a non-drainage state, and the outside air does not enter the total loss from the junction of the check valve 10 and the partition wall 201. Water pipe 20. In order to ensure that outside air does not enter the total water delivery pipe 20, the water tank overflow and the water supply pipe are sealed from the total water delivery pipe 20. The check valve 10 is preferably designed such that a portion of the water is present to ensure a more sealing effect of the sealing film on the valve piece 102 of the check valve 10 on the check valve 10. At the time of the first drainage, the water discharged from the drain valve enters the total water delivery pipe 20. Since the water pressure of the discharged water to the one-way valve piece 102 is greater than the gravity of the one-way valve piece 102 and the pressure of the pre-stored water, the pressure difference forms a positive opening pressure to the one-way valve piece 102 to open the one-way valve piece 102. . A part of the water of the total water delivery pipe 20 enters the brushing water supply pipe 21 to scrub the washing surface, and a part of the water entering the jetting water pipe 22 flushes the dirt in the toilet bowl 2 and causes the siphon pipe 23 to form a siphon. As the water level drops, the forward pressure of the water on the one-way valve piece 102 is reduced at the end of the drainage, and the one-way valve piece 102 is closed by gravity (other force such as spring force or magnetic force may be additionally provided). At this time, the brushing water delivery pipe 21 is isolated from the total water delivery pipe 20, and the cleaning surface brushing hole on the brushing water delivery pipe 21 does not transfer the air to the total water delivery pipe 20. After the drain valve is closed, the spray water outlet pipe 22 only has the water seal water connected to the injection port and the atmosphere, and the remaining outlets are closed. Under the action of atmospheric pressure, the entire water ejected from the water conduit 22 is substantially filled. After the next drain, the water does not need to be refilled with the jetted water conduit 22. Once the drain is turned on, the washing surface can be washed and the dirt in the bowl can be washed. Therefore, the siphon start time will be earlier than that of the prior art, and the siphon time will be longer than that of the prior art structure, thereby enhancing the siphon effect. At the same time, the washing surface is fully supplied with water, and the washing effect is also enhanced.

Example 2

As shown in FIGS. 4 and 5, a mounting structure 1 for a one-way valve 10 for a toilet 2 includes a check valve 10, an annular first seal ring 11, a screw 14, and a threaded seat 15. The first sealing ring 11 is sleeved on the outer wall surface of the outlet pipe 101 of the one-way valve 10, and a groove 103 is provided at the rear of the one-way valve 10. The threaded support 15 is fixed to the total water delivery pipe 20 of the toilet 2 On the rear wall surface, one end of the screw 14 abuts against the groove 103 at the rear of the check valve 10, and the other end is screwed into the threaded seat 15, so that the screw 14 and the threaded seat 15 constitute a screw pair.

In the toilet 2 of the present embodiment, a partition wall 201 is disposed at the junction of the total water delivery pipe 20 and the brushing water delivery pipe 21, and the partition wall 201 is opened to allow the water outlet pipe 101 of the check valve 10 to extend into the brushing The opening of the water delivery pipe 21 is 2011. The check valve 10 is sealed at the opening 2011 by the first seal ring 11 to separate the brushing water supply pipe 21 and the spray water pipe 22 of the toilet bowl 2.

The first sealing ring 11 is inserted into the outlet pipe 101 of the one-way valve 10, and the outlet pipe 10 of the one-way valve 10 extends into the opening 2011 of the partition wall 201, so that the first sealing ring 11 is attached to the partition wall 201 while Under the axial pressure provided by the thread pair, the first sealing ring 11 at the check valve 10 and the opening 201 of the partition wall 201 is pressed against the partition wall 201, so that the toilet water pipe 20 and the brushing water are drained. The water conduit 21 is hermetically sealed in a non-drained state, and outside air does not enter the total water conduit 20 from the junction of the one-way valve 10 assembly and the partition wall 201.

The working process of this embodiment is basically the same as that of Embodiment 1. When not drained, the valve flap 102 of the one-way valve 10 is pressure tightly sealed by gravity (preferably using an appropriate amount of counterweight) and pre-stored water pressure. In order to ensure that outside air does not enter the total water delivery pipe 20, the water tank overflow and the water supply pipe are directly connected to the brushing water supply pipe 21. At the time of the first drainage, the water discharged from the drain valve enters the total water delivery pipe 20. Since the water pressure of the discharged water to the one-way valve piece 102 is greater than the gravity of the one-way valve piece 102 and the pressure of the pre-stored water, the pressure difference forms a positive opening pressure to the one-way valve piece 102 to open the one-way valve 10. A part of the water of the total water delivery pipe 20 enters the brushing water supply pipe 21 to scrub the washing surface, and a part of the water entering the jetting water pipe 22 flushes the dirt in the toilet bowl 2 and causes the siphon pipe 23 to form a siphon. As the water level drops, at the end of the drainage, the positive pressure of the water on the one-way valve 102 is reduced, and the one-way valve piece 102 is closed under the action of gravity (other force such as spring force or magnetic force may be additionally provided). The brushing water delivery pipe 21 is isolated from the total water delivery pipe 20. The cleaning surface brushing holes on the brushing water delivery pipe 21 do not transfer air to the total water delivery pipe 20. After the drain valve is closed, the spray water outlet pipe 22 only faces the atmosphere with the water seal water connected to the injection port, and the remaining outlets are closed. Under the action of atmospheric pressure, the entire water ejected from the water conduit 22 is substantially filled. After the next drain, the water does not need to be refilled with the jetted water conduit 22. Once the drain is turned on, the washing surface can be brushed and the dirt in the bowl can be washed. Therefore, the siphon start time will be earlier than that of the prior art, and the siphon time will be longer than that of the prior art structure, thereby enhancing the siphon effect. At the same time, the washing effect is also enhanced.

In order to ensure that the check valve 10 does not reduce the sealing performance of the first seal ring 11 during transportation and use, the screw 14 is screwed to one end of the screw 14 at the screw nut 14 and is in the nut. A resilient washer 142 is sleeved between the 141 and the threaded support 15 for locking and locking.

The above is only the preferred embodiment of the present invention, and thus the scope of the present invention is not limited thereto, and equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the specification should still be covered by the present invention. In the range.

Industrial applicability

The invention avoids that in the non-drainage state, the jetting water outlet pipe communicates with the brushing water pipe and contacts with the outside air, so that a certain amount of flushing water is pre-stored without leaving air in the jetting water pipe, and the next time the bottom is flushed, The pre-stored water in the jetting water pipe can directly act on the siphon pipe, saving the stroke of the water and greatly improving the flushing effect.

Claims

A mounting structure for a one-way valve for a toilet, comprising a one-way valve, further comprising: a first annular sealing structure, wherein the one-way valve seals the total water supply installed in the toilet through the first annular sealing structure In the pipeline, the brushing water delivery pipe and the jetting water outlet pipe are separated by a toilet, wherein the outlet pipe of the one-way valve is in communication with the brushing water delivery pipe; the first annular sealing structure is sleeved on the outer wall surface of the outlet pipe of the one-way valve The one-way valve is closed, the total water delivery pipe of the toilet and the brushed water supply pipe are sealed and isolated in the non-drainage state, and the outside air does not enter the total water delivery pipe from the one-way valve. In the drain state, the one-way valve is opened and connected. Total water pipeline and brushing water pipeline.
A mounting structure for a one-way valve for a toilet according to claim 1, wherein said first annular seal structure comprises a cylindrical first seal ring and an expansion tube, and the first seal ring is sleeved On the outer wall surface of the expansion pipe, the expansion pipe is sleeved on the outer wall surface of the outlet pipe of the one-way valve, wherein the maximum outer diameter of the expansion pipe is larger than the minimum inner diameter of the first seal ring.
The mounting structure of the one-way valve for a toilet according to claim 2, wherein a second sealing ring is further disposed between the expansion pipe and the outlet pipe of the one-way valve.
The installation structure of the one-way valve for a toilet according to claim 3, wherein the outlet pipe of the one-way valve is provided with a radially outward projection, and the inner wall surface of the expansion pipe is provided There is a card slot that cooperates with the protrusion.
A mounting structure for a one-way valve for a toilet according to claim 4, wherein the starting end of the expansion pipe is provided with a convex guide surface for guiding the discharge pipe of the one-way valve.
A mounting structure for a one-way valve for a toilet according to claim 1, wherein said first annular seal structure comprises an annular first seal ring.
A mounting structure for a one-way valve for a toilet according to claim 6, wherein a rear side of the one-way valve is provided with a screw pair for pressing and fixing the one-way valve.
A mounting structure for a one-way valve for a toilet according to claim 7, wherein said screw pair includes a screw and a threaded support fixed to a rear wall surface of the total water delivery pipe of the toilet. One end of the screw abuts against the rear of the one-way valve, and the other end is screwed into the threaded support.
A mounting structure for a one-way valve for a toilet according to claim 8, wherein a rear portion of the one-way valve is provided with a recess, and one end of the screw abuts in the recess.
A mounting structure for a one-way valve for a toilet according to claim 8, wherein a nut is screwed to one end of the screw-threaded support and a resilient washer is sleeved between the nut and the threaded support. .