A pneumatic controller for extracting odor triggered by a manual pneumatic controller

Abstract

The present invention relates to an air-controlled controller for extracting odors triggered by a manual air-controlled controller, comprising a shell and a valve core assembly installed inside the shell; the outer end of the shell is provided with a control interface, an air interface, a first output interface, a first input interface, a second output interface, a second input interface and a third input interface; the valve core assembly comprises a valve stem which moves by changing the air pressure at the control interface, a corrugated diaphragm fixedly connected to the valve stem, and a reset spring for resetting the valve stem movement; the present invention is suitable for vacuum toilets with air extraction function, and vacuum toilets with two-in-one odor extraction and water extraction. The overall structure is simple and compact, and the functionality is strong. The movement of the valve stem along the second cavity is achieved by changing the air pressure at the control interface. The problem of active odor extraction and maximum toxin removal of the vacuum toilet can be solved during operation. At the same time, the reasonable structural design can effectively reduce the noise generated during operation.

Description

Technical Field

[0001] The present invention relates to the field of vacuum sewage collection, transportation and treatment technology, wherein vacuum sewage collection technology refers to a front-end device or product for collecting sewage at the source of sewage, including but not limited to various kitchens (such as toilets, urinals, shower rooms, bathtubs, etc.) and sanitary products (such as vegetable sinks, dishwashers, etc.); vacuum sewage transportation technology refers to the relevant technology of efficiently transporting sewage collected by front-end devices or products to sewage post-treatment equipment; vacuum sewage treatment technology refers to post-treatment equipment or devices, the main function of which is to separate and purify the centralized collected sewage into solids and liquids, wherein the solids can be made into organic fertilizers, and the sewage can be filtered and purified by MBR membrane technology to achieve green discharge. The present invention particularly relates to an air-controlled controller for extracting odor gas triggered by a manual air-controlled controller used in a vacuum toilet. Background Art

[0002] In the field of vacuum domestic sewage collection, transportation and treatment technology, vacuum domestic sewage collection is the most advanced technology; its basic implementation principle is as follows: first, the sewage collection inlet pipeline (or sewage inlet pipeline) in the vacuum sewage transportation system is connected to various sewage front-end collection equipment, including but not limited to various kitchens (such as toilets, urinals, shower rooms, bathtubs, etc.) and sanitary products (such as vegetable sinks, dishwashers, etc.); secondly, the vacuum pump group generates vacuum in the vacuum sewage transportation system; finally, during the operation of the sewage front-end collection equipment, after the vacuum sewage valve is connected, the pressure difference between the external atmospheric pressure and the vacuum value inside the pipeline in the vacuum sewage transportation system is used to act on the sewage and mixed with air to achieve turbulent transportation of sewage to the sewage collection inlet pipeline (or sewage inlet pipeline).

[0003] As we all know, the characteristic of the vacuum sewage drainage system is that the vacuum toilet will simultaneously draw a large amount of air into the vacuum conveying pipeline system during the sewage discharge process. This technical feature has a certain effect on purifying the air in the bathroom; the viruses in the air are transported to farther places through the flow of airflow and stick to the surface of related objects, greatly expanding the range of virus transmission. Therefore, in addition to the core function of noise reduction, the detoxification function puts forward higher requirements for the use of toilets in military and civilian toilets; it requires the ability to efficiently discharge toxic gases released by patients near the toilet and residual in the air, such as toxic gases in the air caused by patients coughing and vomiting in the bathroom.

[0004] It should be noted that an outbreak of an epidemic is a once-in-a-century event and will not occur frequently, but under normal circumstances, residents will encounter other problems during use; for example, when owners smoke in the bathroom, especially for pregnant women, the bathroom cannot be filled with smoke; and opening windows for ventilation will affect the diffusion effect of windless weather, while the use of exhaust fans will increase energy consumption and noise, which is inconsistent with the noise reduction purpose of the present invention; other situations also include the problem of dealing with the smell released by vomiting on the toilet due to excessive drinking; it is worth noting that patients sometimes discharge some feces that release odors during the process of using the toilet; in the above process, after a person stands up, the odor remaining in the toilet body will be diffused to other locations in the bathroom around the toilet under the action of the airflow generated during the human body's transition from a sitting position to a standing position, causing the entire bathroom to stink. In terms of how to solve the problem of odor polluting the entire bathroom, there are currently three known technical solutions or solutions:

[0005] First, add an exhaust fan or ventilation fan to the bathroom.

[0006] Generally, the problem can be solved by opening windows for ventilation or turning on exhaust fans. However, during the peak period of an epidemic, the odor released from feces may contain pathogenic bacteria that spread not only throughout the bathroom but also through exhaust pipes and windows to contaminate a wider area. This solution is not conducive to the use of hospital facilities with highly contagious virus patients.

[0007] Second, extend the time for vacuuming and sewage discharge.

[0008] The solution to prolonging the vacuuming time is to increase the vacuum toilet vacuuming time. The advantages of this method are simplicity and low cost, but its disadvantages are also obvious. This is because the use of this solution increases the energy consumption of the vacuum sewage system and increases the operation and maintenance costs. Especially in projects where vacuum toilets are used in a concentrated manner, such as hotels, the increase in energy efficiency will be more obvious. Moreover, another disadvantage of extending the vacuuming time is that it affects the frequency of toilet use, increases the waiting time for using the toilet, and reduces the level of humanized service.

[0009] What is more serious is that the current technical solution for extending the pumping and drainage of vacuum toilets is to delay the working time of the controller in the vacuum toilet; the specific use of the known technical solution is to press the flush button of the vacuum toilet immediately after using the toilet, then quickly leave the bathroom and close the bathroom door, and then the vacuum toilet starts flushing after a certain delay. Since the toilet will generate a huge flushing noise when flushing, it is not suitable to wait in the bathroom during the delayed drainage process of the vacuum toilet. The consequence of this situation is that the probability of waiting in line at the bathroom door is greatly increased, and the degree of humanization is low.

[0010] Third, optimize the noise reduction and deodorization channels.

[0011] At present, the noise reduction technology of vacuum toilets is a hot spot and difficulty in development. The basic solution is to adopt a sealed toilet cover and an air supply channel. The air supply channel basically replenishes air in the water inlet area of ​​the toilet body, and the air enters from the bottom or the lower rear side of the toilet body. Some technical solutions are that the supplementary air directly enters the toilet body, and other technical solutions are that the supplementary air also enters the vacuum sewage valve with air supply function.

[0012] Moreover, the known technical solution (reference 2000-US6128789A, 2002-EP0778432B1, etc.) is that when the toilet lid is closed, air enters from the bottom of the toilet and then enters the toilet body and the vacuum drain valve respectively; a major disadvantage of this technical solution is that it is not conducive to timely removal of the odor released by human defecation, because after using the toilet, the toilet lid must be closed first, and then the flush button is pressed, and then the person leaves the bathroom. This usage process is mainly due to the huge flushing noise generated during the flushing process, and long-term stay will cause personal health problems, which is not very humane.

[0013] In order to solve the problem of odor exhaust in special circumstances (smoking, vomiting, and defecation in the toilet), it is necessary to add an independent odor extraction pipe to the vacuum toilet body, and at the same time replenish air in the relative direction; for this purpose, it is necessary to design a controller that can realize its odor extraction function. The basic requirements of the controller are that the controller is a point-operated controller and a split air control button is used to facilitate the installation of the control button, such as placing it on the walls on the left and right sides of the toilet to reflect humanized functions and needs.

[0014] First, the pure mechanical type, the controller is mainly controlled by lever mechanism and cam mechanism, and the reference patents are CN1201057C and US6128789; the controller has related mechanical parts, a large number of parts, poor reliability, bulky and large size.

[0015] Second, the gas-controlled type includes two types of controllers:

[0016] (1) Single-button controllers, such as CN200680003008.7, CN201580081233.1, US5069243, US4373838, US4171853, US5570715;

[0017] (2) Two-button controllers, such as 202010655551.7 and 202010710038.3 large and small water two-button controllers and their vacuum sewage systems.

[0018] In summary, the controllers in the prior art cannot solve the problem of active odor extraction and maximum toxin removal of vacuum toilets, and are also complex in structure and have poor reliability. Therefore, the present invention has developed an air-controlled controller for odor extraction triggered by a manual air-controlled controller to solve the problems in the prior art. After searching, no technical solutions identical or similar to the present invention were found. Summary of the invention

[0019] The purpose of the present invention is to provide an air-controlled controller for extracting odors triggered by a manual air-controlled controller, so as to solve the problem that the controllers in the prior art cannot solve the problem of actively extracting odors and maximizing toxin removal from vacuum toilets, as well as the problems of complex design and poor reliability in structure.

[0020] The technical solution of the present invention is: an air-controlled controller for deodorizing gas triggered by a manual air-controlled controller, comprising a shell and a valve core assembly installed inside the shell; a control interface, an air interface, a first output interface, a first input interface, a second output interface, a second input interface and a third input interface are provided at the outer end of the shell; the valve core assembly comprises a valve stem that realizes movement through changes in air pressure at the control interface, a corrugated diaphragm fixedly connected to the valve stem, and a reset spring that realizes reset of the valve stem movement.

[0021] Preferably, the shell includes an upper shell and a lower shell, and a first cavity and a second cavity that are connected and coaxially arranged are formed inside; the valve stem extends from the first cavity and is plugged into the second cavity; the corrugated diaphragm is fixed to the upper end of the valve stem and is located in the first cavity, dividing the first cavity into a first upper chamber and a first lower chamber; the return spring is fixed between the upper end of the valve stem and the upper inner wall of the first cavity; the control interface is connected to the first upper chamber, the air interface is connected to the first lower chamber, the first output interface and the first input interface are connected to the second cavity, and intermittent connection is achieved through the movement of the valve stem; the second output interface, the second input interface and the third input interface are connected to the second cavity, and the second output interface is intermittently connected to the second input interface and the third input interface through the movement of the valve stem.

[0022] Preferably, the central axes of the first output interface and the first input interface are arranged in the same plane perpendicular to the central axis of the second cavity, and when the reset spring is in the maximum compression state, an upper concave cavity for connecting the first output interface and the first input interface is provided at the side wall where the valve stem is aligned with the inner ends of the first output interface and the first input interface; the inner end of the second output interface is arranged at the middle position on different sides of the inner ends of the second input interface and the third input interface, and a lower concave cavity connecting the second output interface and the third input interface in the reset state, and connecting the second output interface and the second input interface when the reset spring is in the maximum compression state is provided on the side wall of the valve stem.

[0023] Preferably, the control interface, air interface, first output interface, first input interface, second output interface, second input interface and third input interface are arranged on the same side end of the shell, and the inner end connected to the first output interface and the second output interface and the end of the first input interface, the second input interface and the third input interface on the inner side of the shell are arranged on different sides of the second cavity, and the pipeline connected to the first output interface and the second output interface is bent 90 degrees twice.

[0024] Preferably, a plurality of annular sealing rings distributed along the central axis are provided between the outer wall of the valve stem and the inner wall of the second cavity.

[0025] Preferably, a fixing screw for facilitating installation is provided at one end of the housing away from the control interface.

[0026] Preferably, an end of the second cavity away from the first cavity is provided with a vent hole connected to the bottom surface of the shell body for facilitating air extraction and air replenishment during the movement of the valve stem.

[0027] Compared with the prior art, the advantages of the present invention are:

[0028] (1) The present invention is used in conjunction with an external manual air control controller and is suitable for vacuum toilets with air extraction functions, as well as vacuum toilets with two-in-one functions of extracting odor and water. The overall structure is simple and compact. The movement of the valve stem along the second cavity is achieved by controlling the air pressure change at the interface, thereby intermittently connecting the first output interface with the first input interface, and intermittently connecting the second output interface with the second input interface and the third input interface, thereby realizing the control of subsequent components. During the working process, the problem of active odor extraction and maximum toxin removal of the vacuum toilet can be solved.

[0029] (2) The air control controller of the present invention is mainly composed of a shell and a valve core assembly, and can be used in the process of extracting odor from a vacuum toilet. The reasonable structural design ensures that the noise can be effectively reduced during the process of extracting odor. At the same time, the end of the second cavity away from the first cavity is provided with an air vent connected to the bottom surface of the shell to facilitate air extraction and air replenishment during the movement of the valve stem. This can not only ensure the rationality of the structural design, but also ensure that the valve core assembly can reduce noise during movement. The overall structure is highly functional. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0031] Figure 1 This is a schematic diagram of the appearance structure of an air-controlled controller for extracting odor gas triggered by a manual air-controlled controller according to the present invention;

[0032] Figure 2It is a side view of a pneumatic controller for extracting odor gas triggered by a manual pneumatic controller according to the present invention;

[0033] Figure 3 A top view of a pneumatic controller for extracting odor gas triggered by a manual pneumatic controller according to the present invention;

[0034] Figure 4 This is the AA view of the air control controller for extracting odor gas triggered by the manual air control controller described in the present invention (in non-working state);

[0035] Figure 5 is a cross-sectional view of the housing of the present invention;

[0036] Figure 6 It is a cross-sectional view of an air-controlled controller for extracting odors triggered by a manual air-controlled controller described in the present invention in a working state.

[0037] Wherein: 1. Shell;

[0038] 11. upper shell, 12. lower shell, 13. first cavity, 14. second cavity, 15. fixing screw, 16. vent hole;

[0039] 21. Control interface, 22. Air interface, 23. First input interface, 24. First output interface, 25. Second input interface, 26. Third input interface, 27. Second output interface;

[0040] 3. Valve core assembly;

[0041] 31. valve stem, 32. corrugated diaphragm, 33. return spring, 34. upper concave cavity, 35. lower concave cavity. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with specific embodiments:

[0043] like Figure 1-4 As shown, an air-controlled controller for extracting odors triggered by a manual air-controlled controller comprises a shell 1 and a valve core assembly 3 installed inside the shell 1; a control interface 21, an air interface 22, a first output interface 24, a first input interface 23, a second output interface 27, a second input interface 25 and a third input interface 26 are provided at the outer end of the shell 1; the valve core assembly 3 comprises a valve stem 31 which moves by the change of air pressure at the control interface 21, a corrugated diaphragm 32 fixedly connected to the valve stem 31, and a reset spring 33 which resets the valve stem 31.

[0044] More specifically, Figure 5As shown, the shell 1 includes an upper shell 11 and a lower shell 12, and a first cavity 13 and a second cavity 14 are formed inside the shell that are connected and coaxially arranged; the first cavity 13 is formed by covering the lower end of the upper shell 11 and the upper end of the lower shell 12, and the second cavity 14 is arranged in the lower shell 12, and a vent hole 16 is arranged at the end away from the first cavity 13; the control interface 21, the air interface 22, the first output interface 24, the first input interface 23, the second output interface 27, the second input interface 25 and the third input interface 26 are arranged on the same side of the shell 1, and a fixing screw 15 for easy installation is arranged on the other side end face opposite thereto.

[0045] like Figure 4 As shown, the valve stem 31 extends from the first cavity 13 and is plugged into the second cavity 14, and a plurality of annular sealing rings distributed along the central axis are arranged between the outer wall and the inner wall of the second cavity 14; the corrugated diaphragm 32 is fixed to the upper end of the valve stem 31 and is located in the first cavity 13, dividing the first cavity 13 into a first upper chamber and a first lower chamber; the reset spring 33 is fixed between the upper end of the valve stem 31 and the upper inner wall of the first cavity 13; the control interface 21 is connected to the first upper chamber, the air interface 22 is connected to the first lower chamber, the first output interface 24 and the first input interface 23 are connected to the second cavity 14, and intermittent connection is achieved through the movement of the valve stem 31; the second output interface 27, the second input interface 25 and the third input interface 26 are connected to the second cavity 14, and the second output interface 27 is achieved through the movement of the valve stem 31 It is intermittently connected with the second input interface 25 and the third input interface 26; further, the central axes of the first output interface 24 and the first input interface 23 are arranged in the same plane perpendicular to the central axis of the second cavity 14, and when the reset spring 33 is in the maximum compression state, the side wall of the valve stem 31 aligned with the inner ends of the first output interface 24 and the first input interface 23 is provided with an upper concave cavity 34 for connecting the first output interface 24 and the first input interface 23; the inner end of the second output interface 27 is arranged at the middle position on different sides of the inner ends of the second input interface 25 and the third input interface 26, and the side wall of the valve stem 31 is provided with a lower concave cavity 35 that connects the second output interface 27 and the third input interface 26 in the reset state, and connects the second output interface 27 and the second input interface 25 when the reset spring 33 is in the maximum compression state.

[0046] In this embodiment, the inner ends of the first output interface 24 and the second output interface 27 are connected to the inner ends of the first input interface 23, the second input interface 25 and the third input interface 26 on the inner side of the housing 1 and are arranged on different sides of the second cavity 14. Figure 3As shown, the pipeline connected to the first output interface 24 and the second output interface 27 is bent twice by 90 degrees, so that the first output interface 24 and the second output interface 27 can be arranged on the same side of the housing 1 as the first input interface 23 , the second input interface 25 and the third input interface 26 .

[0047] The specific working principle of the present invention is as follows:

[0048] In the non-working state, air is introduced into the control interface 21 and the air interface 22, the pressure at the upper and lower ends of the corrugated diaphragm 32 is the same, and the valve stem 31 is in a state of being under the action of the return spring 33. Figure 4 In the reset state shown, the first input interface 23 is disconnected from the first output interface 24 , and the second output interface 27 is connected to the third input interface 26 .

[0049] In the working state, a vacuum is formed at the control interface 21, air is introduced into the air interface 22, and the pressure above the corrugated diaphragm 32 is less than the pressure below. The resulting pressure difference overcomes the spring force of the return spring 33, causing the valve stem 31 to move as shown in FIG. Figure 6 As shown in the upward movement, at this time, the first input interface 23 is connected to the first output interface 24, and the second input interface 25 is connected to the second output interface 27.

[0050] The valve stem 31 will move along the second cavity 14 in the non-working state and the working state. At this time, the volume of the space formed between the lower end of the valve stem 31 and the bottom of the second cavity 14 will change. In order to ensure the normal movement of the valve stem 31, an air vent 16 is provided at the bottom of the second cavity 14 for facilitating air extraction and air replenishment during the movement of the valve stem 31. The present invention is suitable for vacuum toilets with air extraction function, as well as vacuum toilets with two-in-one odor extraction and water extraction. The overall structure is simple and compact with strong functionality. The movement of the valve stem 31 along the second cavity 14 is achieved by controlling the change of air pressure at the interface 21. The problem of active odor extraction and maximum toxin removal of the vacuum toilet can be solved during operation. At the same time, the reasonable structural design can effectively reduce the noise generated during operation.

[0051] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A pneumatic controller for extracting odor triggered by a manual pneumatic controller, characterized in that: It comprises a housing and a valve core assembly installed inside the housing; the outer end of the housing is provided with a control interface, an air interface, a first output interface, a first input interface, a second output interface, a second input interface and a third input interface; the valve core assembly comprises a valve stem that moves by changing the air pressure at the control interface, a corrugated diaphragm fixedly connected to the valve stem, and a reset spring that realizes the reset of the valve stem movement; The shell comprises an upper shell and a lower shell, and a first cavity and a second cavity which are connected and coaxially arranged are formed inside, wherein the first cavity is formed by covering the lower end of the upper shell and the upper end of the lower shell, and the second cavity is arranged in the lower shell; the valve stem extends from the first cavity and is plugged into the second cavity; the corrugated diaphragm is fixed to the upper end of the valve stem and is located in the first cavity, dividing the first cavity into a first upper chamber and a first lower chamber; the return spring is fixed between the upper end of the valve stem and the upper inner wall of the first cavity; the control interface is connected to the first upper chamber, the air interface is connected to the first lower chamber, the first output interface and the first input interface are connected to the second cavity, and intermittent connection is achieved through the movement of the valve stem; the second output interface, the second input interface and the third input interface are connected to the second cavity, and the second output interface is intermittently connected to the second input interface and the third input interface through the movement of the valve stem; The central axes of the first output interface and the first input interface are arranged in the same plane perpendicular to the central axis of the second cavity; when the reset spring is in the maximum compression state, an upper concave cavity for connecting the first output interface and the first input interface is arranged at the side wall where the valve stem is aligned with the inner ends of the first output interface and the first input interface; the inner end of the second output interface is arranged at the middle position on different sides of the inner ends of the second input interface and the third input interface, and a lower concave cavity connecting the second output interface and the third input interface in the reset state and connecting the second output interface and the second input interface when the reset spring is in the maximum compression state is arranged on the side wall of the valve stem.

2. The pneumatic controller for extracting odor triggered by a manual pneumatic controller according to claim 1, characterized in that: The control interface, air interface, first output interface, first input interface, second output interface, second input interface and third input interface are arranged on the same side end of the shell, and the inner end connected to the first output interface and the second output interface and the end of the first input interface, the second input interface and the third input interface on the inner side of the shell are arranged on different sides of the second cavity, and the pipeline connected to the first output interface and the second output interface is bent twice at 90 degrees.

3. The pneumatic controller for extracting odor triggered by a manual pneumatic controller according to claim 2, characterized in that: A plurality of annular sealing rings distributed along the central axis are arranged between the outer wall of the valve stem and the inner wall of the second cavity.

4. The pneumatic controller for extracting odor triggered by a manual pneumatic controller according to claim 3, characterized in that: A fixing screw for easy installation is arranged at one end of the housing away from the control interface.

5. A pneumatic controller for extracting odor triggered by a manual pneumatic controller according to any one of claims 1 to 4, characterized in that: An end of the second cavity away from the first cavity is provided with a vent hole connected to the bottom surface of the shell body for facilitating air extraction and air replenishment during the movement of the valve stem.

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