CN210597523U - Structure for preventing toilet sewage from flowing backwards - Google Patents
Structure for preventing toilet sewage from flowing backwards Download PDFInfo
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- CN210597523U CN210597523U CN201921493886.2U CN201921493886U CN210597523U CN 210597523 U CN210597523 U CN 210597523U CN 201921493886 U CN201921493886 U CN 201921493886U CN 210597523 U CN210597523 U CN 210597523U
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- valve port
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- water tank
- check valve
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Abstract
The utility model discloses a prevent structure of closestool sewage refluence, drainage pipe including intercommunication water tank and bedpan, the water of water tank passes through drainage pipe flows extremely the bedpan is with right the bedpan is washed be equipped with on the drainage pipe and be used for preventing rivers from flowing backwards extremely by the bedpan check valve in the water tank. The utility model discloses a set up the check valve, can avoid the water refluence of bedpan to the water tank in order to pollute the water in the water tank, simple structure, the function is reliable.
Description
Technical Field
The utility model belongs to the technical field of the closestool technique and specifically relates to a prevent structure of closestool sewage refluence.
Background
In a toilet flushing device, the water discharge is typically opened by opening a water discharge valve in the tank so that the water in the tank flows into the toilet bowl via a water discharge pipe to flush the waste in the toilet bowl into the waste pipe.
The phenomenon of blockage of a sewage discharge pipeline sometimes occurs in the using process of the closestool, and particularly for the closestool with a low water tank, the blockage phenomenon is more likely to occur. Under the condition that the closestool is blocked, when the blockage removing tool is used, impurities and dirt in the toilet bowl can easily flow back to the water tank of the closestool, so that the problem that the water tank is polluted is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides a structure capable of preventing the backflow of the sewage of the toilet, which has simple structure and reliable function.
In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a prevent structure of closestool sewage refluence, is including the drainage pipe of intercommunication water tank and bedpan, the water of water tank passes through drainage pipe flows extremely the bedpan is with right the bedpan washes be equipped with on the drainage pipe and be used for preventing rivers from flowing backwards to by the bedpan check valve in the water tank.
Preferably, a valve port is arranged on the drainage pipeline, the check valve is matched with the valve port to open or close the valve port, when water in the water tank is drained to the drainage pipeline, the check valve opens or keeps opening the valve port, and when water in the bedpan flows back to the drainage pipeline, the check valve keeps closing or closing the valve port.
Preferably, a sealing element is arranged between the one-way valve and the valve port, and the one-way valve seals the valve port under the pressure action of the backflow water.
Preferably, the check valve is rotatably or slidably disposed at the valve port, and the check valve closes the valve port under the action of the elastic member and/or the buoyancy chamber.
Preferably, the check valve includes a baffle rotatably disposed at the valve port, the baffle closes the valve port under the action of the elastic member, and when the water tank is flushed, the water flow pressure overcomes the elastic force of the elastic member to rotate the baffle to open the valve port.
Preferably, the check valve comprises a baffle rotatably arranged at the valve port, the bottom of the baffle is provided with the buoyancy chamber, when water in the bedpan flows back to the drainage pipeline, the buoyancy chamber forms buoyancy under the action of the backflow water to drive the baffle to rotate so as to close the valve port, and when the water tank is flushed, the baffle keeps opening the valve port under the action of self weight and the pressure of water flow.
Preferably, the check valve is a float bucket which can be slidably mounted in the drainage pipeline up and down, the float bucket is provided with the buoyancy cavity, when water in the bedpan flows back into the drainage pipeline, the float bucket slides and floats upwards under the action of the flowing water to close the valve port, and when the water tank is flushed, the float bucket is in a falling state under the action of self weight and the pressure of the flowing water to keep opening the valve port.
Preferably, a guide structure for guiding the up-and-down sliding of the one-way valve is arranged in the drainage pipeline.
Preferably, be equipped with the drain valve in the water tank, the base fixed mounting of drain valve is in the mounting hole department of water tank, drainage pipe package base pipeline section and connecting pipe section, the base pipeline section forms on the base of drain valve, the entry of base pipeline section with the inner chamber intercommunication of water tank, the export of base pipeline section with the entry switch-on of connecting pipe section, the export of connecting pipe section with the bedpan switch-on, the check valve is located the base pipeline section or connecting pipe section department.
Preferably, a drain valve is arranged in the water tank, a base of the drain valve is fixedly arranged at a mounting hole of the water tank, and the valve port is formed at a water outlet at the bottom end of the base
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a be equipped with on drainage pipe and be used for preventing rivers to flow backwards the check valve in to the water tank by the bedpan, the check valve is opened or keep opening so that rivers can flow to the bedpan in order to be used for washing the bedpan via drainage pipe when the water tank is washed by water, the check valve keeps closing in order to prevent the sewage refluence in the bedpan to the water tank when the water tank is not washed by water, perhaps, the check valve is closed in order to prevent the sewage refluence in the bedpan to the water tank when having sewage to flow backwards in to drainage pipe, thereby avoid the water tank to be polluted by sewage.
The check valve is a baffle which is rotatably or slidably mounted at the valve port, the baffle keeps closed or resets to close the valve port under the elastic force of the elastic part, or the baffle is provided with a buoyancy cavity, the baffle floats under the action of backflow water to close the valve port, or the check valve is a floating barrel which is provided with the buoyancy cavity and can be mounted in the drainage pipeline in a vertically sliding manner, and the check valve is simple in structure and reliable in function. And when the check valve adopts a floating barrel structure, the floating barrel falls down and cannot block the water flow of a drainage pipeline when the water tank is flushed, and the pressure and the discharge speed of the water flow are not influenced basically.
Drawings
Fig. 1 is a schematic view of a drain valve according to a first embodiment of the present invention installed in a tank of a toilet bowl;
fig. 2 is a sectional view showing a structure for preventing reverse flow of toilet sewage according to a first embodiment of the present invention;
FIG. 3 is a perspective view of a baffle installed at a water outlet of a base in a structure for preventing backflow of toilet sewage according to a first embodiment of the present invention, in which the baffle is in a state of closing the water outlet (valve port);
FIG. 4 is a perspective view of the baffle plate installed at the water outlet of the base in the structure for preventing backflow of toilet sewage according to the first embodiment of the present invention, at which time the baffle plate is in a state of opening the water outlet (valve port);
FIG. 5 is a perspective view of a baffle installed at a water outlet of a base in a structure for preventing backflow of toilet sewage according to a second embodiment of the present invention, in which the baffle is in a state of closing the water outlet (valve port);
FIG. 6 is a perspective view of a baffle installed at a water outlet of a base in a structure for preventing backflow of toilet sewage according to a second embodiment of the present invention, in which the baffle is in a state of opening the water outlet (valve port);
fig. 7 is a sectional view showing a structure for preventing reverse flow of toilet sewage according to a third embodiment of the present invention, in which the float is in a state of closing a water outlet (valve port);
fig. 8 is a sectional view showing a structure for preventing reverse flow of toilet sewage according to a third embodiment of the present invention, in which the float is in a state of opening a water outlet (valve port).
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description of the present invention is provided with reference to the accompanying drawings, which are only some embodiments of the present invention, and it is obvious for a person skilled in the art to obtain other drawings without creative efforts.
The first embodiment:
as shown in fig. 1 to 4, the structure for preventing backflow of toilet sewage according to the first embodiment of the present invention includes a drainage pipe 30 communicating a water tank 10 and a toilet bowl 20, wherein water in the water tank 10 flows to the toilet bowl 20 through the drainage pipe 30 to flush the toilet bowl 20, and a check valve 40 for preventing water from flowing backwards from the toilet bowl 20 to the water tank 10 is disposed on the drainage pipe 30.
In this embodiment, the drainage pipeline 30 is provided with a valve port 31, the check valve 40 is matched with the valve port 31 to open or close the valve port 31, and when water in the water tank 10 is drained to the drainage pipeline 30, the check valve 40 opens the valve port 31 under the action of water flow; when the water tank 10 stops draining, the check valve 40 is reset to close the valve port 31; when the sewage in the bedpan 20 flows back into the drainage pipeline 30, the check valve 40 keeps closing the valve port 31, so as to prevent the water flow from flowing back from the bedpan 20 to the water tank 10.
Specifically, the check valve 40 includes a baffle 40a rotatably disposed at the valve port 31, the baffle 40a is kept to close the valve port 31 under the action of an elastic member 50, the elastic member 50 is a torsion spring, but the elastic member 50 is not limited to a torsion spring, and other types of elastic members may be used to provide the return elastic force. When the water tank 10 is flushed, the water flow pressure overcomes the elastic force of the elastic member 50 to rotate the baffle 40a to open the valve port 31, and when the water tank 10 is not drained, the baffle 40a is reset to close the valve port 31 under the elastic force of the elastic member 50.
A sealing element is arranged between the baffle 40a and the valve port 31, when the sewage in the bedpan 20 flows back to the drainage pipeline 30, the baffle 40a will further close the valve port 31 tightly under the pressure of the backflow water, so that the backflow prevention effect is better.
In this embodiment, the water tank 10 is provided with the drain valve 60, the base 61 of the drain valve 60 is fixedly installed at the installation hole of the water tank 10, the drain pipe 30 includes a base pipe section 30a and a connection pipe section 30b, the base pipe section 30a is formed on the base 61 of the drain valve 60, the inlet of the base pipe section 30a is communicated with the inner cavity of the water tank 10, the outlet of the base pipe section 30a is communicated with the inlet of the connection pipe section 30b, and the outlet of the connection pipe section 30b is communicated with the bedpan 20.
In the present embodiment, the valve port 31 is formed at the water outlet 611 at the bottom end of the base 61, that is, the baffle 40a is also disposed at the water outlet 611 at the bottom end of the base 61. Of course, the valve port 31 and the baffle 40a can be alternatively arranged at the connecting pipe section 30b, and the effect is the same, besides the valve port 31 and the baffle 40a can be arranged at the base pipe section 30 a.
The working process of this embodiment is briefly described as follows:
as shown in fig. 3, when the water tank 10 is not flushed, the flapper 40a is reset by the elastic force of the elastic member 50 to keep the valve port 31 closed, so that the sewage in the toilet bowl 20 cannot flow back into the water tank 10.
As shown in fig. 4, when the water tank 10 is flushed, the flow of the flushed water hits the flapper 40a, and the flapper 40a rotates downward to open the valve port 31, so that the flushing water can flow into the bowl 20 through the drain pipe 30.
Second embodiment:
as shown in fig. 5 and 6, the second embodiment of the present invention is a structure for preventing backflow of toilet sewage, and the difference between the present embodiment and the previous embodiment is: the check valve 40 includes a baffle 40b rotatably disposed at the valve port 31, a buoyancy chamber 41 is disposed at the bottom of the baffle 40b, and when the sewage in the toilet bowl 20 flows back into the drainage pipe 30, the buoyancy chamber 41 forms an upward buoyancy under the action of the flowing back water to drive the baffle 40b to rotate upward to close the valve port 31, as shown in fig. 5; under the normal condition that no sewage flows backwards, the buoyancy cavity 41 loses buoyancy, and the baffle 40b rotates downwards under the action of self weight to open the valve port 31; when the water tank 10 is flushed, the water in the water tank 10 is discharged to the drain pipe 30, and the flapper 40b continues to hold open the valve port 31 under the effect of its own weight and the pressure of the water flow, as shown in fig. 6.
The rest of the structure and principle of this embodiment are the same as those of the first embodiment, and are not described herein again.
The third embodiment:
as shown in fig. 7 and 8, the third embodiment of the present invention is a structure for preventing backflow of toilet sewage, and the difference between the present embodiment and the previous embodiment is: the check valve 40 is a float 40c slidably attached up and down in the drain pipe 30, and the float 40c is provided with a buoyancy chamber. When the sewage in the bedpan 20 flows back into the drainage pipe 30, the float 40c slides upwards to close the valve port 31 under the effect of the backflow water, as shown in fig. 7; under the normal condition that no sewage flows backwards, the floating barrel 40c loses buoyancy, and the floating barrel 40c falls under the action of self weight to open the valve port 31; when the water tank 10 is flushed, the float 40c is in a falling state under the self-weight and the water flow pressure to keep opening the valve port 31, as shown in fig. 8.
In this embodiment, the drainage pipeline 30 is provided with a guide structure for guiding the float 40c to slide up and down, the guide structure is specifically a guide rod 70, and the float 40c slides up and down along the guide rod 70.
The specific working process of this embodiment is as follows:
when the sewage in the bedpan 20 flows backward into the drainage pipe 30, as shown in fig. 7, the float 40c floats by the backward flow of the water to slide upward to close the valve port 31, so that the sewage in the bedpan 20 cannot flow backward into the water tank 10.
Under normal conditions without reverse flow of sewage, the float 40c loses buoyancy, and the float 40c falls under its own weight to open the valve port 31.
As shown in fig. 8, when the water tank is flushed, the flow of the flushed water impacts the float 40c, and the float 40c continues to fall under the water pressure and its own weight to keep the valve port 31 open, so that the flushing water can flow into the toilet bowl 20 through the drainage pipe 30.
The check valve 40 of the present embodiment adopts the structure of the float 40c, and when the tank is flushed, the float 40c falls without blocking the water flow of the drain pipe 30, and the pressure and the discharge speed of the water flow are not substantially affected.
The rest of the structure and principle of this embodiment are the same as those of the first embodiment, and are not described herein again.
It is understood that the first embodiment and the second embodiment can be combined, or the first embodiment and the third embodiment can be combined, that is, the elastic member and the buoyancy chamber can be used together to reset the check valve to close the valve port 31, so that the function of preventing the backflow of sewage is more reliable.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a prevent structure of closestool sewage refluence, is including the drainage pipe of intercommunication water tank and bedpan, the water of water tank passes through drainage pipe flows extremely the bedpan is with right the bedpan washes its characterized in that be equipped with on the drainage pipe and be used for preventing rivers from flowing backwards extremely by the bedpan check valve in the water tank.
2. The structure for preventing backflow of toilet sewage as claimed in claim 1, wherein the drain pipe is provided with a valve port, the check valve is matched with the valve port to open or close the valve port, the check valve opens or keeps open the valve port when water in the tank is drained to the drain pipe, and the check valve keeps closed or close the valve port when water in the toilet bowl flows backwards into the drain pipe.
3. The structure for preventing reverse flow of toilet sewage according to claim 2, wherein a sealing member is provided between the check valve and the valve port, and the check valve seals the valve port under the pressure of the reverse flow of water.
4. The structure for preventing reverse flow of toilet sewage according to claim 2, wherein the check valve is rotatably or slidably disposed at the valve port, and closes the valve port by an elastic member and/or a buoyancy chamber.
5. The structure for preventing reverse flow of toilet sewage according to claim 4, wherein the check valve comprises a flap rotatably disposed at the valve port, the flap closes the valve port under the action of the elastic member, and when the tank is flushed, the pressure of the water flow overcomes the elastic force of the elastic member to rotate the flap to open the valve port.
6. The structure for preventing backflow of toilet sewage as claimed in claim 4, wherein the one-way valve comprises a flapper rotatably disposed at the valve port, the bottom of the flapper is provided with the buoyancy chamber, when water in the toilet bowl flows backwards into the drainage pipe, the buoyancy chamber forms buoyancy under the effect of the backflow water to drive the flapper to rotate so as to close the valve port, and when the water tank is flushed, the flapper keeps opening the valve port under the effect of self-weight and the pressure of the water flow.
7. The structure for preventing reverse flow of toilet sewage as claimed in claim 4, wherein said check valve is a float slidably fitted in said drain pipe up and down, said float being provided with said buoyancy chamber, said float being floated by the reverse flow of water up to close said valve port when water in said toilet bowl flows backward into said drain pipe, said float being in a falling state under its own weight and under the pressure of water flow to keep said valve port open when said tank is flushed.
8. The structure for preventing reverse flow of toilet sewage as claimed in claim 7, wherein a guide structure for guiding up and down sliding of said check valve is provided in said drain pipe.
9. The structure for preventing sewage backflow of a toilet bowl as claimed in claim 1, wherein a drain valve is disposed in the water tank, a base of the drain valve is fixedly mounted at a mounting hole of the water tank, the drain pipe comprises a base pipe section and a connecting pipe section, the base pipe section is formed on the base of the drain valve, an inlet of the base pipe section is communicated with an inner cavity of the water tank, an outlet of the base pipe section is communicated with an inlet of the connecting pipe section, an outlet of the connecting pipe section is communicated with the toilet bowl, and the check valve is disposed at the base pipe section or the connecting pipe section.
10. The structure for preventing reverse flow of sewage from a toilet bowl as claimed in claim 2, wherein a drain valve is provided in the water tank, a base of the drain valve is fixedly installed at the installation hole of the water tank, and the valve port is formed at a water outlet at the bottom end of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921493886.2U CN210597523U (en) | 2019-09-09 | 2019-09-09 | Structure for preventing toilet sewage from flowing backwards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921493886.2U CN210597523U (en) | 2019-09-09 | 2019-09-09 | Structure for preventing toilet sewage from flowing backwards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210597523U true CN210597523U (en) | 2020-05-22 |
Family
ID=70692184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921493886.2U Active CN210597523U (en) | 2019-09-09 | 2019-09-09 | Structure for preventing toilet sewage from flowing backwards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210597523U (en) |
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2019
- 2019-09-09 CN CN201921493886.2U patent/CN210597523U/en active Active
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