CN109811848B

CN109811848B - Overflow air extraction interface

Info

Publication number: CN109811848B
Application number: CN201910190815.3A
Authority: CN
Inventors: 张自强
Original assignee: Beijing Hanwei Hi Tech Co ltd
Current assignee: Beijing Hanwei Hi Tech Co ltd
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2023-10-20
Anticipated expiration: 2039-03-13
Also published as: CN109811848A

Abstract

The invention discloses an overflow air extraction interface, which comprises an air extraction main pipe, an air extraction sealing sleeve, an overflow valve assembly, an air compensating valve assembly and a water compensating end cover; the air exhaust sealing sleeve and the overflow valve assembly are connected with an interface at the lower part of the main air exhaust pipe, the air compensating valve assembly and the water compensating end cover are connected with an interface at the upper part of the main air pipe, and the horizontal interface of the main air exhaust pipe is connected with the air exhaust device; through the overflow air extraction interface provided by the invention, air extraction can be realized, overflow can be realized when the water level of the water tank is too high, and the channel is closed to prevent air intake when the water level is too low. The exhaust deodorizing device for connecting the overflow pipe of the closestool can not only keep the original overflow function of the closestool water tank, but also ensure the automatic sealing during flushing, meet the condition of the exhaust device for exhausting work at any time, take all the requirements of flushing, exhausting, overflow and the like into account, and has strong practicability.

Description

Overflow air extraction interface

Technical Field

The invention relates to an overflow air exhaust interface, in particular to an overflow air supplementing interface at a deodorizing and air collecting port of a toilet, which belongs to the field of odor removal in toilets.

Background

At present, the use of a toilet is very common, but the odor generated during toilet use cannot be effectively eliminated, and the problem of people's daily trouble during toilet use is solved, so that the toilet exhaust deodorizing device is generated, but the problem of considering both gas collection and overflow is needed to be faced by a solution for collecting the odor through an overflow port in a toilet water tank, and the problem of considering both gas collection and overflow is not considered, so that the air suction with overflow and air supplementing functions is needed to help the smooth work of the exhaust deodorizing device.

In the prior art, various problems exist in a common closestool overflow port gas collection port, and the following problems are briefly listed:

1. directly sealing and connecting, and neglecting the needs of overflow and air supplement; on one hand, the design damages the existing overflow function of the closestool, and causes overflow hidden trouble; on the other hand, the air supplementing function is canceled, so that air can not be supplemented in time when the closestool is flushed, water flow is not smooth when the closestool is flushed, and the flushing effect is influenced. Meanwhile, in extreme cases, the sewer odor can be sucked back through the exhaust device, so that the sewer odor can not be lost.

2. The double air inlet pipe design is directly adopted, one pipe is connected with the overflow pipe for collecting air, and the other pipe is directly inserted into the water surface downwards; when water exists in the water tank, the pipe orifice of the water tank is sealed by water, so that the air suction requirement of air exhaust and the overflow function when the water level is too high can be met, however, when the water level in the water tank is lowered after flushing, the pipe orifice is in a suspended state, and if air exhaust is needed at the moment, air in the water tank can be extracted through the pipe, and the air exhaust effect is lost.

3. The design of the large-caliber gas collecting tube adopts a gas collecting port which is larger than the overflow tube diameter of the closestool and is directly covered on the overflow tube, when water exists in the water tank, a gap between the two tubes is filled with water, and exhaust can be well realized, however, after flushing, the gas collecting tube can not contact the water surface and can be in a suspended open state, and if exhaust deodorization is required, gas in the water tank can be extracted through the gap between the two tubes, so that the exhaust effect is greatly influenced and even failure is caused.

According to the application field and the use purpose, the application has the problems of ensuring that the deodorizing and air collecting port can be sealed at any time, and simultaneously keeping the existing overflow function and the flushing and air supplementing function of the closestool.

Based on the above demand analysis, in order to exactly grasp the existing technical situation in the field and the disclosure situation of the corresponding solution, the applicant of the present application performs detailed search by using a patent search system of the national intellectual property office network, and obtains the following prior art information. These prior arts are now briefly summarized and analyzed to better understand the inventive concepts of the present application, revealing the technical advantages and features of the present application.

Prior art 1: the application number CN2016621154328. X discloses a toilet deodorizer, which is characterized in that one end of an air suction sleeve elbow is connected with an overflow pipe, the inner diameter of the air suction sleeve elbow is larger than the outer diameter of the overflow pipe, the bottom of the air suction sleeve elbow is higher than the pipe orifice of the overflow pipe, and the gap between the sleeve and the overflow pipe is sealed by water.

Prior art 2: the application number CN20140744464.3 discloses a toilet bowl exhaust device, wherein the solution of the gas collecting port is: the exhaust pipe opening covers the overflow pipe orifice of the toilet water tank downwards, the inner diameter of the exhaust pipe is larger than the outer diameter of the overflow pipe, and the lower edge opening of the exhaust pipe is lower than the water level line in the toilet water tank, so that the 3 rd of the common problems is met, and the requirement of the application for solving the problems cannot be met.

Prior art 3: the application number 20140744464.3 discloses a toilet bowl with a deodorizing device, wherein an air inlet pipe is connected with an overflow pipe, the outer wall of a valve body is provided with an air supplementing port and an overflow port, an external air supplementing pipe is arranged on the air supplementing port, an air supplementing slide valve is arranged between the air supplementing port and a valve cavity, the overflow port is communicated with the valve cavity, the overflow pipe is provided with an overflow pipe, and an overflow float is arranged in the overflow pipe, wherein air supplementing and overflow are realized through the external air supplementing pipe and the air supplementing slide valve, and the overflow port is realized through the overflow pipe and the overflow float; in the technology, an air supplementing port and an overflow port are arranged on the outer wall of a valve body, an outer air supplementing pipe 9 is arranged on the air supplementing port, through holes are formed in the upper part and the lower part of the air supplementing pipe 9, air is supplemented by the lower through hole, when a water inlet valve of a toilet bowl breaks down and the water level in a water tank exceeds the upper through hole, the upper through hole plays a certain role in draining, and according to the attached drawing of the disclosed technology, the air supplementing pipe 9 is communicated with the bottom of a valve cavity and is completely different from an air supplementing overflow structure to be solved by the application; in addition, an air supplementing slide valve 12 is arranged between the air supplementing port and the valve cavity, the overflow port is communicated with the valve cavity, an overflow pipe II11 is arranged on the overflow port, and an overflow floater 10 is arranged in the overflow pipe II 11. The overflow pipe II11 is provided with an upper area and a lower area, the overflow floater 10 is positioned in the lower area under normal conditions to block the overflow port, when the water inlet valve of the water tank fails, the overflow floater 10 begins to float upwards to enter the upper area when the water level in the water tank is higher than the lowest end of the overflow pipe II11, water enters the exhaust pipe 8 to be discharged ", the overflow floater 10 is positioned in the lower area under normal conditions to block the overflow port, and the capacity of the exhaust device for manufacturing negative pressure is limited by the gravity of the overflow floater 10. Therefore, the disclosed technology does not solve the problem of water-free sealing of the overflow port, and a method for opening the overflow port by water to allow overflow is provided, so that the requirement of the problem to be solved by the application cannot be met.

The above 3 prior arts are solutions in the field of toilet deodorization, and the following are comparative descriptions about related valve technologies such as similar anti-return seal:

prior art 4: the application number CN201410286519.0 discloses a mechanical floor drain for preventing gas in a drainage pipeline from overflowing and diffusing, wherein a sealing plate for preventing gas in the pipeline from overflowing is used for sealing an outlet of the pipeline under the action of a balancing weight through a lever, and when sewage flows, the sealing plate is opened under the action of the gravity of water; the mechanical structure for preventing gas from overflowing provided by the application has the same stopping effect as that of the application for preventing gas from entering, but the water flow discharge direction of the application is opposite to the overflow direction of the application, and when water exists at the lower part of the valve, the valve needs to be automatically opened, and obviously the existing solution for automatically closing the blank plate by gravity cannot meet the requirement of the application.

Prior art 5: the application number CN201720213172.6 discloses a compensating sealing deodorizing floor drain, and mentions that the deodorizing floor drain comprises a floor drain body, a floor drain core and a turning plate assembly, wherein the assembly comprises a turning plate, a rubber sealing block and a balancing weight, according to the matching diagram of the deodorizing floor drain, the technology of the deodorizing floor drain solves the problem that the turning plate is turned upwards by a lever to seal a valve opening by means of the gravity of the balancing weight, and when water flows, the water flows are passively opened to allow the water flows to pass, so that the requirements of deodorizing and draining are met; similarly, the mechanical structure for preventing gas from overflowing provided by the application has the same stopping effect as that of the application for preventing gas from entering, but the water flow discharging direction is opposite to the overflow direction, and when water exists at the lower part of the valve, the valve needs to be automatically opened, and obviously the balancing weight for providing gravity cannot float up by itself to allow the entering of overflow water flow, so that the overflow requirement to be solved by the application cannot be met.

Prior art 6: the application number CN201621274158.9 discloses a turnover plate piston double-barrel water seal reset type mixed sealing floor drain, wherein the turnover plate type mechanical sealing device is composed of a structural body and a turnover plate, one end of the turnover plate is provided with an automatic closing counterweight, and a horizontal normally closed type is arranged at the lower end of the structural body; the mechanical structure for preventing gas from overflowing provided by the application has the same stopping effect as that of the application for preventing gas from entering, but the water flow discharge direction is opposite to the overflow direction, and when water exists at the lower part of the valve, the valve needs to be automatically opened, obviously the balancing weight for providing gravity cannot float up by itself to allow the overflow water flow to enter, and the overflow requirement to be solved by the application cannot be met.

Prior art 7: the application number CN20172025605.6 discloses a side-turning plate drainer for floor drain, wherein the lower part of a lower water body is provided with a water outlet, a turning plate movably connected with the water outlet is arranged above the water outlet, a magnet with opposite magnetism is arranged below the water outlet and on the turning plate, the turning plate and the drainer body are naturally attached under the action of magnetic force and self gravity under the normal state, and the water outlet is closed; when water enters the drainer body, under the action of gravity and impact force, the turning plate is jacked up against the magnetic force and self gravity, and the water is discharged from the water outlet and enters the sewer pipe. The mechanical structure for preventing gas from overflowing provided by the application has the same stopping effect as that of the application for preventing gas from entering, but the water flow discharge direction of the application is opposite to the overflow direction of the application, and when water exists at the lower part of the valve, the valve needs to be automatically opened, obviously has a valve which is magnetically sucked and provides a gravity counterweight, cannot float automatically to allow the entering of overflow water flow, and cannot meet the overflow requirement which needs to be solved by the application.

Similar to the prior art, application number CN201620187532.5 discloses a buoyancy turning plate floor drain, application number CN201720776508.X discloses an automatic sealing type deodorization floor drain and the like, which belong to the same structural scheme for meeting the requirements of the lower drainage function, and cannot meet the requirements of the multifunctional exhaust, overflow and air supplementing of the application.

In addition, in the deodorizing process of the sewer, the valve is opened by flushing water flow, and the structure of the application is used in the overflow air suction interface of the closestool is not disclosed in the prior art.

On the whole, the application is based on the above-mentioned demand, the solution scheme of the standard design that can carry on the work of exhausting at any time of the deodorizing device of the exhaust of the toilet is strictly met, through this device, no matter there is water in the water tank, and no matter the toilet has been flushed by any way, can all carry on the deodorizing of exhaust immediately when needing, ensure the healthy fresh of the indoor environment.

Disclosure of Invention

In view of the above problems, there is no solution given in the prior art: in the existing air extraction interface solution, the air exhaust deodorizing device cannot be started at any time, or the overflow requirement cannot be met, or the effective air supplementing function is not available, and the problems can cause the toilet deodorizing device to lose the significance.

The overflow air-supplementing interface provided by the invention can meet the requirements of overflow, air-supplementing and deodorization, and completely meet the actual requirements.

The overflow air extraction interface comprises an air extraction main pipe, an air extraction sealing sleeve, an overflow valve assembly, an air compensation valve assembly and a water compensation end cover; the air exhaust sealing sleeve and the overflow valve assembly are connected with an interface at the lower part of the main air exhaust pipe, the air compensating valve assembly and the water compensating end cover are connected with an interface at the upper part of the main air pipe, and the water interface of the main air exhaust pipe is connected with the air exhaust device; specifically, the air extraction sealing sleeve is vertically opposite to the water supplementing end cover, and the overflow valve assembly is vertically opposite to the water supplementing port.

Further, the exhaust main pipe is respectively provided with an external opening in the upward direction, the downward direction and the horizontal direction; the upward opening is a first air-supplementing and water-supplementing interface and a second air-supplementing and water-supplementing interface respectively, the downward opening is a first overflow air-extracting interface and a second overflow air-extracting interface respectively, the horizontal direction outward opening is an exhaust interface, the first air-supplementing and water-supplementing interface is opposite to the first overflow air-extracting interface up and down, and the second air-supplementing and water-supplementing interface is opposite to the second overflow air-extracting interface up and down; wherein the method comprises the steps of

The first overflow air extraction interface is connected with the overflow valve assembly;

the second overflow air extraction interface is connected with the air extraction sealing sleeve;

the first air supplementing and water supplementing interface is connected with the air supplementing valve;

the second air supplementing and water supplementing interface is provided with the water supplementing end cover.

Further, the relief valve assembly includes a relief valve body and a relief valve plate; wherein the overflow valve body is connected to a first overflow air extraction interface or the second overflow air extraction interface of the exhaust main pipe; the overflow valve plate comprises a valve plate, a buoyancy bin and a valve plate shaft, and can be turned around the valve plate shaft so that the valve is opened or closed.

Further, the overflow valve is provided with a pressure relief opening, in particular a small notch is arranged at the contact position of the valve plate and the valve opening.

Furthermore, the air extraction sealing sleeve is provided with different inner diameters, one end of the air extraction sealing sleeve is 20-25mm in inner diameter, and the other end of the air extraction sealing sleeve is 28-35mm in inner diameter, so that the air extraction sealing sleeve can be suitable for being connected with different pipe diameters.

Further, the included angle between the central line of the exhaust interface and the vertical upward direction is smaller than 90 degrees.

Further, the overflow air extraction interface is arranged in the toilet water tank and is connected with the exhaust deodorizing device, wherein the air extraction sealing sleeve is connected with an overflow pipe in the toilet water tank, and air in the toilet is extracted through a flushing hole; the exhaust interface is connected with an exhaust device air extraction interface; the overflow valve assembly can be automatically closed or opened, when the water inlet pipe fitting of the water tank fails, the overflow valve assembly is automatically opened so as to overflow, and when the water level in the water tank is lower, the overflow valve assembly is automatically closed so as to enable the air exhausting device to exhaust air; the air compensating valve assembly comprises an air compensating valve bracket, an air compensating valve plate, an air compensating valve assembly spring and an air compensating valve spring plug; the air compensating valve assembly is in a normally closed state, and the air compensating valve plate can be passively opened to allow air to enter under negative pressure; when the air supplementing valve is normal, the air supplementing valve plate seals the air supplementing inlet under the action of the air supplementing valve assembly spring; when negative pressure exists instantaneously, the air supplementing valve plate presses the air supplementing valve assembly spring, the air supplementing inlet is forcedly opened, gas is allowed to enter, and smooth flushing of the closestool is ensured; the water supplementing port is connected with a water supplementing pipe of the closestool to realize water supplementing after the closestool is flushed.

In summary, the overflow air extraction interface disclosed by the invention can realize that the odor can be normally discharged no matter whether water exists in the toilet water tank or not, and the odor can be continuously discharged in the process of slowly filling water in the water tank after flushing, and after the water surface passes through the valve, the valve can be automatically opened, so that the existing overflow function of the toilet is maintained.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the overflow air-supplementing interface of the present invention.

FIG. 2 is an exploded view of the overflow air-make-up interface of the present invention.

Fig. 3 is a schematic view of the overflow main pipe structure of the present invention.

FIG. 4 is a schematic diagram showing the angles between the exhaust interface of the overflow main pipe and the vertical direction.

FIG. 5 is a schematic cross-sectional view of the relief valve of the present invention.

Fig. 6 is a schematic view of the overflow valve plate of the present invention.

FIG. 7 is a schematic cross-sectional view of an angled overflow valve plate according to the invention

FIG. 8 is a schematic cross-sectional view of a bottom flush overflow valve according to the invention

FIG. 9 is a schematic cross-sectional view of an overflow air-supplementing port according to a first embodiment of the present invention.

FIG. 10 is a schematic cross-sectional view of a second embodiment of an overflow air supply port according to the present invention.

FIG. 11 is a schematic diagram of an overflow air-make-up interface connection exhaust apparatus according to the present invention.

In the figure, 1: a water supplementing end cover; 2: a supplemental valve assembly; 3: an overflow valve assembly; 4: an exhaust main pipe; 5: an air extraction sealing sleeve; 6: an overflow pipe of the toilet bowl; 1-1: the overflow air supplementing interface provided by the invention; 1-2: an exhaust device gas collecting port; 1-3: an exhaust device body; 1-4 exhaust pipes of an exhaust device; 3-1: an overflow valve body; 3-2: an overflow valve plate; 3-3: an overflow valve plate shaft; 3-4: an overflow buoyancy bin; 3-5: relief opening of overflow valve plate; 4-1: a first air and water supplementing interface; 4-2: a second air-supplementing and water-supplementing interface; 4-3: a first overflow bleed port; 4-4: a second overflow bleed port; 4-5: an exhaust port.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the following, various commodity models or terms such as "first", "second", "up", "down", "left", "right", "front", "back", "far", "near" and the like are technical terms that are already known in the art and some positional or spatial definitions for convenience in describing the embodiments are not limiting of the present invention, and are not explained in any greater extent.

In order to solve the problem that the toilet deodorizing device is affected by flushing, the overflow valve assembly is innovatively designed, so that overflow air suction is realized, the air discharge effect is well prevented from being reduced when no water exists in the water tank, and the original overflow function is also considered; the original air supplementing function is converted into a normally closed air supplementing valve component, which is automatically closed during air exhaust and passively opened during flushing.

Further, the technical scheme adopted by the invention is as follows:

an overflow air supplementing interface comprises an exhaust main pipe 4, an air extraction sealing sleeve 5, an overflow valve assembly 3, an air supplementing valve assembly 2 and a water supplementing end cover 1; the air exhaust sealing sleeve 5 and the overflow valve assembly 3 are connected with the interface below the main air exhaust pipe 4, the air compensating valve assembly 2 and the water compensating end cover 1 are connected with the interface above the main air pipe 4, and the air exhaust interface 4-5 of the main air exhaust pipe 4 is connected with the air collecting port 1-2 of the air exhaust device; specifically, the air extraction sealing sleeve 5 is vertically opposite to the water replenishing end cover 1, and the overflow valve assembly 3 is vertically opposite to the water replenishing valve assembly 2.

Further, one end of the exhaust main pipe 4 is closed, and an external opening is respectively arranged upwards and downwards; the upward openings are respectively a first air-supplementing and water-supplementing interface 4-1 and a second air-supplementing and water-supplementing interface 4-2, the downward openings are respectively a first overflow air-extracting interface 4-3 and a second overflow air-extracting interface 4-4, the external opening of the main exhaust pipe 4 is an exhaust interface 4-5, the first air-supplementing and water-supplementing interface 4-1 and the first overflow air-extracting interface 4-3 are vertically opposite, and the second air-supplementing and water-supplementing interface 4-2 and the second overflow air-extracting interface 4-4 are vertically opposite;

wherein the method comprises the steps of

The first air supplementing and water supplementing interface 4-1 is connected with the air supplementing valve assembly 2;

The second air supplementing and water supplementing interface 4-2 is connected with the water supplementing end cover 1;

the first overflow air extraction interface 4-3 is connected with the air extraction sealing sleeve 5;

the second overflow air suction interface 4-4 is connected with the overflow valve assembly 3;

moreover, the first overflow air suction interface 4-3 and the second overflow air suction interface 4-4 can be interchanged;

the first air-supplementing and water-supplementing interface 4-1 and the second air-supplementing and water-supplementing interface 4-2 are interchangeable.

Further, the overflow valve assembly 3 comprises an overflow valve main body 3-1, an overflow buoyancy bin 3-4, an overflow valve plate shaft 3-3 and an overflow valve plate 3-2; wherein, the liquid crystal display device comprises a liquid crystal display device,

the overflow valve plate 3-2 is fixedly connected with the overflow valve main body 3-1 through the overflow valve plate shaft 3-3, and the overflow valve plate 3-2 can be turned around the overflow valve plate shaft 3-3 so that the valve is opened or closed.

Further, the overflow valve plate is provided with an overflow valve plate pressure relief opening 3-5, so that the overflow valve plate 3-2 is prevented from being sucked in an exhaust state, and water flow cannot enter the overflow valve body 3-1 in time when the water level in the toilet water tank rises.

Furthermore, the two ends of the air extraction sealing sleeve 5 are provided with different inner diameters and can be connected with overflow pipes with different pipe diameters.

Further, the overflow valve body 3-1 is connected to the first overflow pumping port 4-3 or the second overflow pumping port 4-4 and can be exchanged;

Further, the overflow air extraction interface also comprises an air compensation valve assembly 2 and a water compensation end cover 1;

further, the air compensating valve assembly 2 is in a normally closed state, and the air compensating valve plate can be passively opened to allow air to enter under negative pressure;

when no instant negative pressure exists, the air compensating valve plate seals the air compensating valve assembly 2 under the action of the air compensating valve assembly spring;

when the instantaneous negative pressure exists, the air supplementing valve plate presses the air supplementing valve assembly spring, the air supplementing valve assembly 2 is forcedly opened, and air is allowed to enter.

Further, the water supplementing end cover 1 is connected with a water supplementing pipe of the closestool to realize water supplementing after the closestool is flushed.

Finally, in order to meet the requirements of the toilet exhaust deodorizing device, the overflow air supplementing interface meets the requirements of exhaust, overflow and air supplementing; the specific design achieves the following purposes:

(1) Ensuring that the existing functions of the closestool are not affected and the overflow, the air supplementing, the water supplementing and the like are intact.

(2) The air exhaust deodorizing device meets the requirement of working at any time, and the air exhaust pipeline is in a closed state no matter whether water exists in the water tank or not and whether the water tank is flushed through the closestool or not;

(3) The structure is simple, the system is free from the limitation of any objective condition, and the actual requirements are met.

For clarity of description, we have chosen a typical implementation to introduce; the valve and the pipeline are selected to adapt to the most popular toilet form in the market as much as possible.

Specific embodiments are described in detail below:

embodiment one:

in a first embodiment, as shown in fig. 1, the overflow pumping interface of the present invention includes an exhaust main pipe 4, a water replenishing end cover 1, a water replenishing valve assembly 2, an overflow valve assembly 3, etc.

The selective water supplementing end cover 1 is connected with the first air supplementing and water supplementing interface 4-1, and the air supplementing valve component 2 is connected with the second air supplementing and water supplementing interface 4-2; the air extraction sealing sleeve 5 is connected with the first overflow air extraction interface 4-3 and is opposite to the water supplementing end cover 1 up and down, and the overflow valve assembly 3 is connected with the second overflow air extraction interface 4-4 and is opposite to the water supplementing valve assembly 2 up and down.

Wherein the exhaust interface 4-5 is transversely arranged and communicated with the first air-supplementing and water-supplementing interface 4-1, the second air-supplementing and water-supplementing interface 4-2, the first overflow air-extracting interface 4-3 and the second overflow air-extracting interface 4-4 through the exhaust main pipe 4; the first overflow air extraction interface 4-3 is connected with an overflow pipe of the closestool through an air extraction sealing sleeve 5 to realize the extraction of odor; the water replenishing after flushing of the closestool can be realized after the water replenishing end cover 1 which is vertically opposite to the first overflow air suction interface 4-3 is connected with a water replenishing pipe.

The overflow valve main body 3-1 is connected with the second overflow air extraction interface 4-4, the overflow valve assembly 3 connected with the overflow valve main body extends downwards to the water tank, when water exists in the water tank, the overflow valve assembly 3 is below the water surface, the overflow valve plate 3-2 is in an open state, when the overflow valve plate 3-2 is in a closed state after flushing, the air compensating valve assembly 2 opposite to the overflow valve plate 3-2 from top to bottom can be opened for air compensation at the moment of flushing.

Specifically, the implementation procedure of this embodiment is as follows:

the overflow air extraction interface 1-1 is connected through the process, the air exhaust interface 4-5 is connected to the air collecting port 1-2 of the toilet exhaust deodorizing device, and the first overflow air extraction interface 4-3 is connected to the overflow pipe of the toilet through the air extraction sealing sleeve 5.

Firstly, the overflow process is that when the exhaust deodorizing device works, if water exists in a toilet water tank, an overflow valve plate 3-2 is opened around an overflow valve plate shaft 3-3 under the action of an overflow buoyancy bin 3-4, and water flow enters an overflow valve main body 3-1; if the water level of the water tank is too high due to the failure of the water piece of the water tank, water flow can reach the exhaust interface 4-5 and flow into the overflow pipeline; as shown in fig. 4, the exhaust main pipe is integrally formed, wherein the second air-supplementing and water-supplementing interface is coaxial with the second overflow air-extracting interface, the first air-supplementing and water-supplementing interface 4-1 is coaxial with the first overflow air-extracting interface 4-3, and the central axes of the second air-supplementing and water-supplementing interface 4-2 and the second overflow air-extracting interface 4-4 are parallel to the central axes of the first air-supplementing and water-supplementing interface 4-1 and the first overflow air-extracting interface 4-3; the included angle between the central axis of the first air supplementing and water supplementing interface 4-1 and the first overflow air extracting interface 4-3 along the vertical upward direction and the transverse outward opening direction of the air exhausting interface 4-5 is smaller than 90 degrees; when the first overflow air extraction interface 4-3 is in the vertical direction, one end of the air exhaust interface 4-5 is tilted, so that overflow water flow is ensured not to flow to one side connected with the air exhaust device, and the purpose that overflow enters the toilet overflow pipe is realized.

The following describes the operation of the flush and toilet exhaust deodorizing device:

the air compensating valve assembly 2 is internally provided with an elastic normally-closed valve plate, and the valve plate is in a normally-closed state through a spring. Specifically, when the water in the toilet tank is flushed, the water can instantaneously enter the toilet flushing cavity, and the descending water body enables the flushing channel to form instantaneous vacuum negative pressure and transmit the instantaneous vacuum negative pressure to the overflow pipe, so that when the valve under the flushing button is required to discharge water, air is supplemented through the overflow pipe; the air compensating valve component 2 is in a closed state under the action of the spring, and the elasticity is enough to overcome the negative pressure caused by the exhaust deodorizing device, so that the influence of leakage of external air on exhaust is avoided; when the toilet is flushed, the air can be supplemented in time by effectively opening the air compensating valve component 2 due to the fact that the instantaneous negative pressure is very large, smooth flushing is ensured, and the original flushing effect of the toilet is prevented from being influenced due to the addition of the exhaust device.

Meanwhile, after flushing, the water level in the water tank is lowered, the overflow valve assembly 3 is suspended above the water surface, and at the moment, the overflow valve plate 3-2 is tilted to close the valve under the action of the gravity of the overflow buoyancy bin 3-4; the toilet exhaust deodorizing device needs to work immediately to remove the dirty water vapor caused by flushing in the toilet cavity after flushing, and the overflow valve plate 3-2 is automatically closed, so that the entry of external air can be prevented, and the formation of air suction negative pressure is ensured.

In addition, in order to prevent the overflow valve plate 3-2 from being opened smoothly under the buoyancy action of the overflow buoyancy bin 3-4 due to the suction negative pressure when the water level rises, the overflow valve plate pressure relief opening 3-5 is arranged, and a small amount of air enters through the overflow valve plate pressure relief opening 3-5 at the moment, but the aperture is small, so that the water level can be closed after rising, water flow is convenient to enter, and the valve is opened gradually after the pressure balance is achieved between the inside and the outside of the valve.

Specifically, when the water level in the water tank rises to the overflow valve plate 3-2, under the action of air suction negative pressure, the overflow valve plate 3-2 cannot be opened under the action of the overflow buoyancy bin 3-4 at the first time, and water flow can enter the overflow valve body 3-1 through the overflow valve plate pressure relief opening 3-5 to keep internal and external water pressure balance; on the basis, water flow gradually enters along with the rising of the water level, so that after the pressure balance between the inside and the outside of the valve is achieved, when the buoyancy of the overflow buoyancy bin 3-4 is enough to open the valve, the overflow valve plate 3-2 is slowly opened; if the overflow valve plate pressure relief opening 3-5 is not provided, under the action of air suction negative pressure, the overflow valve plate 3-2 cannot be opened by the buoyancy of the overflow buoyancy bin 3-4, and the overflow valve plate 3-2 is closed by water pressure, so that the overflow function is disabled.

The water replenishing end cover 1 is externally reserved with a water replenishing pipe access port, and a water replenishing pipe which is originally inserted into the overflow pipe can be directly inserted into a hole reserved in the water replenishing end cover 1. The water supplementing end cover 1 provided by the invention has two apertures which can be adopted, so that the requirements of the water supplementing pipes with different pipe diameters on the connection are met; when the water replenishing end cover 1 is installed, the water replenishing end cover is connected with the interface of the closestool overflow pipe, so that the timely water replenishing function can be realized; therefore, after each flushing, the water replenishing pipe in the water tank can replenish water into the water chamber of the toilet bowl through the overflow pipe 6.

In conclusion, the overflow air-supplementing interface provided by the invention not only meets the requirements of odor discharge, but also ensures that the existing overflow, air-supplementing and water-supplementing functions of the closestool are not affected.

Embodiment two:

according to the description of the first embodiment, after the existing overflow water supplementing port of the closestool is connected with the overflow air supplementing port provided by the invention, the closestool has a complete odor exhausting function, and the effective odor elimination can be realized only after the closestool is connected with the exhaust device.

Another embodiment is described below by adjusting the interface mode:

in the second embodiment, the selective water supplementing end cover 1 is connected with the second air supplementing and water supplementing interface 4-2, and the air supplementing valve assembly 2 is connected with the first air supplementing and water supplementing interface 4-1; the air extraction sealing sleeve 5 is connected with a second overflow air extraction interface 4-4 and is opposite to the water supplementing end cover 1 up and down; the overflow valve assembly 3 is connected with the first overflow air suction interface 4-3 and is opposite to the air compensating valve assembly 2 up and down.

The exhaust port 4-5 is transversely arranged and communicated with the second air-supplementing and water-supplementing port 4-2, the first air-supplementing and water-supplementing port 4-1, the second overflow air-extracting port 4-4 and the first overflow air-extracting port 4-3 through pipelines, and the second overflow air-extracting port 4-4 is connected with an overflow pipe of the closestool through an air-extracting sealing sleeve 5 to realize extraction of odor; the water replenishing after flushing of the closestool can be realized after the water replenishing end cover 1 which is opposite to the water replenishing end cover from top to bottom is connected with a water replenishing pipe;

The overflow valve main body 3-1 is connected with the first overflow air extraction interface 4-3, the overflow valve assembly 3 connected with the overflow valve main body extends downwards to the water tank, when water exists in the water tank, the overflow valve assembly 3 is below the water surface, the overflow valve plate 3-2 is in an open state, when the overflow valve plate 3-2 is in a closed state after flushing, the air compensating valve assembly 2 opposite to the overflow valve plate 3-2 from top to bottom can be opened for air compensation at the moment of flushing.

Specifically, the implementation procedure of this embodiment is as follows:

through the overflow air extraction interface well connected in the description, the air exhaust interface 4-5 is connected to the toilet air exhaust deodorizing device, and the first overflow air extraction interface 4-3 is connected to the overflow pipe of the toilet through the air extraction sealing sleeve 5.

The water replenishing end cover 1 is externally reserved with a water replenishing pipe access port, and a water replenishing pipe which is originally inserted into the overflow pipe can be directly inserted into a hole reserved in the water replenishing end cover 1. The water supplementing end cover 1 provided by the invention has two apertures which can be adopted, so that the requirements of the water supplementing pipes with different pipe diameters on the connection are met; when the water replenishing end cover 1 is installed, the water replenishing end cover is connected with the interface of the closestool overflow pipe, so that the timely water replenishing function can be realized; therefore, after each flushing, the water replenishing pipe in the water tank can replenish water to the flushing cavity of the toilet bowl through the overflow pipe.

The two embodiments mainly introduce the interchange combination implementation of the overflow air extraction interface and the water supplementing air supplementing port according to the adjustment requirements of different installation positions on site.

The specific implementation method is introduced according to different pipe diameters of the overflow pipe of the closestool:

the outer diameter of the overflow pipe of the general closestool is between 25mm and 30mm, and few special-shaped structures are not in the range of our discussion;

the overflow exhaust pipe designed by us is a pipe fitting with the outer diameter of 25mm, and is matched with a reducing soft rubber sleeve, namely an exhaust seal sleeve 5, one end of the overflow exhaust pipe has the inner diameter of about 23mm, and the other end of the overflow exhaust pipe has the inner diameter of about 27mm, so that the overflow exhaust pipe is compatible with overflow pipes with different outer diameters.

The relief valve assembly 3 may also be implemented in other forms for ease of production and flexibility of setup, see in particular embodiments three and four.

Embodiment III:

as shown in fig. 7, the overflow valve plate 3-2 is arranged in a form that the connection part of the valve plate and the overflow buoyancy bin 3-4 is provided with an angle, so that the structure that the overflow valve body 3-1 is provided with an inclined plane at the bottom can be avoided; when no water exists in the water tank, the overflow valve plate 3-2 is naturally closed under the gravity action of the overflow buoyancy bin 3-4; when water exists in the water tank, the overflow valve plate 3-2 rises under the buoyancy action of the overflow buoyancy bin 3-4, and the valve is closed.

Embodiment four:

as shown in fig. 8, a peripheral protection shell is added to the bottom of the overflow valve main body 3-1, so that the bottom of the whole valve is in a flush state, and other devices are prevented from interfering with the operation of the valve; the structure of the connection of the overflow valve plate 3-2 and the overflow buoyancy bin 3-4 is unchanged, and only the sizes of the overflow valve plate 3-2 and the overflow buoyancy bin 3-4 are properly adjusted to avoid interference with the inner wall of the overflow valve main body 3-1; the same can be realized, when no water exists in the water tank, the overflow valve plate 3-2 is naturally closed under the gravity action of the overflow buoyancy bin 3-4; when water exists in the water tank, the overflow valve plate 3-2 rises under the buoyancy action of the overflow buoyancy bin 3-4, and the valve is closed.

Fifth embodiment:

in this embodiment, as shown in fig. 6, we choose the overflow pipe type equal to or slightly larger than the overflow exhaust pipe.

In order not to influence the overflow function of the closestool, the lengths of the first overflow air extraction interface 4-3 and the second overflow air extraction interface 4-4 provided by the invention are only 20mm, and when the outer diameter of the overflow pipe of the closestool is equal to that of the overflow pipe, the overflow pipe of the closestool cannot be nested; the installation method is that the two are in butt joint and fixed through the small diameter end of the air extraction sealing sleeve 5.

The specific implementation process is as follows: first, the overflow odor port of the present invention is assembled according to the operation method of the first and second embodiments, and then the pumping sealing sleeve 5 is sleeved on the overflow pipe of the toilet.

And then the exhaust overflow interface corresponding to the overflow odor interface is aligned to the overflow pipe of the closestool, and then the air extraction sealing sleeve 5 is moved up and down to confirm mutual alignment and fixing.

Example six:

if the overflow pipe type larger than the overflow exhaust pipe is selected.

In order not to influence the overflow function of the closestool, the lengths of the first overflow air extraction interface 4-3 and the second overflow air extraction interface 4-4 provided by the invention are only 20mm, and when the outer diameter of the overflow pipe of the closestool is larger:

if the nested installation cannot be carried out; the installation method is that the small diameter end of the air extraction sealing sleeve 5 is fixed on the overflow odor interface of the invention, and the other end is directly fixed on the overflow pipe of the closestool.

If the overflow air suction interface can be installed in a nested way, the overflow air suction interface provided by the invention is inserted into an overflow pipe of a closestool, and then the position of the air suction sealing sleeve 5 is adjusted to ensure no air leakage.

In the above four embodiments, several common assembling modes are selected, and the implementation mode of the overflow odor interface provided by the invention is simply described, and the specific connection mode of the overflow odor interface provided by the invention and the toilet exhaust device is described below.

Embodiment seven:

as shown in FIG. 11, the overflow odor interface 1-1 provided by the invention is connected with the exhaust port 1-2 of the toilet exhaust device, and when the exhaust unit 1-3 of the toilet exhaust device works, the collection of odor can be realized by connecting the first overflow air exhaust interface 4-3 or the second overflow air exhaust interface 4-4 with the overflow port of the toilet.

The specific implementation mode is as follows: firstly, installing a toilet exhaust device into a water tank, adjusting the height, and then connecting an overflow odor interface 1-1 provided by the invention to an overflow pipe of a toilet;

if the overflow odor port is unsuitable to the exhaust port 1-2 of the toilet exhaust device after installation, the flushing water piece of the toilet can be adjusted, and the overflow pipe is rotated to adjust the position of the overflow pipe of the toilet, so that the positions of the overflow odor port and the exhaust port are suitable, and the installation is convenient.

The starting working process after the installation is finished is as follows:

firstly, the exhaust opening 1-2 of the toilet exhaust device extracts odor in the toilet, if enough water exists in the water tank at the moment, the overflow valve plate 3-2 is opened around the overflow valve plate shaft 3-3 under the action of the overflow buoyancy bin 3-4, and water flow enters the overflow valve main body 3-1.

When the closestool is flushed, in order to continuously discharge odor, the closestool exhaust device can continuously work, at the moment, the overflow valve plate 3-2 is suspended above the water surface, and the overflow valve plate 3-2 is tilted upwards to seal the valve under the gravity action of the overflow buoyancy bin 3-4, so that the entering of external air is avoided, and the smooth exhaust is ensured.

When water in the water tank slowly rises, the inside of the overflow odor interface provided by the invention is in a negative pressure state under the action of the closestool exhaust device, and the overflow valve plate 3-2 is in a closed state, so that air leakage is prevented, and the operation at any time is ensured; along with the rise of the water level, water enters the overflow valve main body 3-1 through the overflow valve plate pressure relief opening 3-5, the internal and external water pressures are kept the same gradually, and finally the overflow valve plate 3-2 is opened under the buoyancy action of the overflow buoyancy bin 3-4, so that the overflow effect is realized.

Finally, the overflow air-supplementing interface provided by the invention enables the exhaust device to avoid the problems of water flushing, air supplementing, overflow and the like of the existing closestool, and only needs to be focused on providing enough air suction negative pressure, solving the problems of effective odor discharge, timely backflow prevention and the like, and greatly improving the performance and cost performance of the whole system.

The overflow air-supplementing interface provided by the invention is used for the application scene of the toilet exhaust deodorizing system, not only meets the exhaust deodorizing requirement, but also takes the original overflow and air-supplementing functions into account, and has the characteristics of simple structure, convenience in installation and the like; likewise, the overflow air-supplementing interface provided by the invention can be also used for other various application scenes of water-air combination control, so that corresponding use requirements are met.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, other obvious variants of the invention mentioned but not claimed and variants which can be obtained without inventive effort by the person skilled in the art are not surprising to the inventors and applicant.

The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the invention, but any minor modifications, equivalents, and improvements made to the above embodiments according to the technical principles of the present invention should be included in the scope of the technical solutions of the present invention.

Claims

1. An overflow air extraction interface comprises an air exhaust main pipe, an air extraction sealing sleeve, an overflow valve assembly, an air compensating valve assembly and a water compensating end cover; the air exhaust sealing sleeve and the overflow valve assembly are connected with a lower interface of the main air exhaust pipe, the air compensating valve assembly and the water compensating end cover are connected with an upper interface of the main air exhaust pipe, and a horizontal interface of the main air exhaust pipe is connected with the air exhaust device; the air extraction sealing sleeve corresponds to the water supplementing end cover up and down, and the overflow valve assembly corresponds to the air supplementing valve assembly up and down; the overflow valve assembly comprises an overflow valve main body and an overflow valve plate member, the overflow valve plate member comprises an overflow valve plate, a buoyancy bin and a valve plate shaft, and the overflow valve plate rotates around the valve plate shaft; the exhaust main pipe is integrally formed; the inner diameters of the ports at the two ends of the air extraction sealing sleeve are different, the inner diameter of one end is 20-25mm, and the inner diameter of the other end is 28-35mm; the air compensating valve assembly comprises an air compensating valve bracket, an air compensating valve plate, an air compensating valve assembly spring and an air compensating valve spring plug; the air compensating valve component is in a normally closed state, and the air compensating valve plate is passively opened to allow air to enter under negative pressure; when the air supplementing valve is normal, the air supplementing valve plate seals the air supplementing inlet under the action of the air supplementing valve assembly spring; when negative pressure exists in the moment, the air supplementing valve plate presses the air supplementing valve assembly spring, the air supplementing inlet is forcedly opened, and air is allowed to enter.

2. The overflow air extraction interface according to claim 1, wherein the exhaust main pipe is provided with 5 external interfaces in the upward, downward and horizontal directions, the upward openings are a first air supplementing and water supplementing interface and a second air supplementing and water supplementing interface respectively, the downward openings are a first overflow air extraction interface and a second overflow air extraction interface respectively, the horizontal interfaces are exhaust interfaces, the first air supplementing and water supplementing interface is opposite to the first overflow air extraction interface up and down, and the second air supplementing and water supplementing interface is opposite to the second overflow air extraction interface up and down; the first overflow air extraction interface is connected with the air extraction sealing sleeve;

the second overflow air extraction interface is connected with the overflow valve assembly;

the first air supplementing and water supplementing interface is connected with the water supplementing end cover;

the second air supplementing and water supplementing interface is connected with the air supplementing valve assembly;

or alternatively

the first air supplementing and water supplementing interface is connected with the air supplementing valve assembly;

the second air supplementing and water supplementing interface is connected with the water supplementing end cover.

3. The overflow bleed port of claim 2, wherein the overflow valve body is connected to either the first overflow bleed port or the second overflow bleed port of the exhaust main pipe.

4. A overflow bleed port as claimed in claim 3, wherein the overflow valve is provided with a pressure relief vent.

5. The overflow bleed port of claim 4, wherein the relief vent is a notch or groove provided at a contact of the overflow valve plate and the valve port.

6. The overflow bleed port of claim 2, wherein the second air and water make-up port is coaxial with the second overflow bleed port, the first air and water make-up port is coaxial with the first overflow bleed port, and a central axis of the second air and water make-up port and the second overflow bleed port is parallel with a central axis of the first air and water make-up port and the first overflow bleed port; the included angle between the central axis of the first air supplementing and water supplementing interface and the central axis of the first overflow air extracting interface along the vertical upward direction and the transverse external opening direction of the air exhausting interface is smaller than 90 degrees.

7. An overflow bleed interface as claimed in claim 3, wherein,

the air exhaust sealing sleeve is connected with an overflow pipe in the toilet water tank, and air in the toilet cavity is extracted through the flushing hole;

the exhaust interface is connected with an exhaust device air extraction interface;

The overflow valve assembly is automatically closed or opened, when the water inlet pipe fitting of the water tank fails, the overflow valve assembly is automatically opened so as to overflow, and when the water level in the water tank is low, the overflow valve assembly is automatically closed so as to enable the air exhausting device to exhaust air;

the water supplementing end cover is connected with a water supplementing pipe of the closestool.

8. A toilet deodorizing device with an overflow bleed port as defined in any one of claims 1-7, comprising an exhaust main pipe, a bleed seal sleeve, an overflow valve assembly, a make-up end cap, an exhaust deodorizing main unit, and an exhaust pipe; the air exhaust sealing sleeve is connected with an overflow pipe in the water tank of the closestool and used for extracting dirty gas in the closestool; the overflow valve assembly, the air compensating valve assembly and the water compensating end cover are respectively connected with the exhaust main pipe; the exhaust interface of the exhaust main pipe in the horizontal direction is connected with the exhaust deodorizing host; the other end of the exhaust deodorizing host is connected with an exhaust pipe; the overflow valve assembly is automatically closed or opened, when the water inlet pipe fitting of the water tank fails, the overflow valve assembly is automatically opened to allow overflow, and when the water level in the water tank is low, the overflow valve assembly is automatically closed to prevent gas from entering; the air compensating valve component is in a normally closed state and is passively opened under negative pressure to allow air to enter; the water supplementing end cover is connected with a water supplementing pipe of the closestool to realize water supplementing after the closestool is flushed.