A sanitary ware disinfectant delivery system based on the Venturi effect

Abstract

The present invention relates to a sanitary ware disinfectant delivery system for defecation and urination based on the Venturi effect, which is applied to the field of disinfection and cleaning of sanitary ware for defecation and urination. The Venturi tube is the core part of the system, connecting the water inlet channel and the water outlet channel. The throat inlet pipe of the Venturi tube is connected to the liquid storage device. When the water flow from the water inlet valve enters the Venturi tube through the water inlet channel, the suction force generated by the Venturi effect in the Venturi tube draws the liquid in the liquid storage device connected to the throat inlet pipe into the Venturi tube through the liquid outlet and mixes with the water flow. When the sanitary ware is flushed, the water flow containing the disinfectant plays a role in disinfecting and cleaning toilets, squat toilets, and urinals. The regulating valve provided on the water inlet valve, the anti-liquid backflow valve provided in the throat inlet pipe of the Venturi tube, and the flow regulating valve of the inlet channel in the liquid storage device are used to control the content of the disinfectant sucked into the Venturi tube, thereby achieving the effect of quantitative automatic delivery of the disinfectant.

Description

Technical Field

[0001] The present invention relates to the field of disinfection and cleaning of sanitary appliances for defecation and urination, and in particular to a disinfection system which can automatically dispense disinfectant in an adjustable quantity based on the Venturi effect. Background Art

[0002] Sanitary appliances for defecation and urination include toilets, squat toilets, urinals, and other appliances. With economic development, toilets have become standard equipment in thousands of households. The construction of public health facilities has also made people's lives more convenient and better. Whether it is a toilet at home or in public places, toilets, squat toilets, and urinals must be disinfected and sterilized as necessary. The breeding and mutation of viruses and bacteria pose a hidden danger to public health and safety. Especially at the moment when the COVID-19 epidemic has not yet been completely resolved, the rapid spread of the virus by public transportation has made it more rapid and widespread, bringing global harm. Therefore, the disinfection and sterilization of public health facilities is even more indispensable.

[0003] For the disinfection and cleaning of toilets, people nowadays mostly use solid disinfectants, put them into the toilet tank, slowly dissolve and mix the solid disinfectants with water, and then press the flush button to flush the sanitary appliances, or use disinfectant to spray on the inner wall of the toilet, squat toilet and urinal, and then rinse with water. When using solid disinfectants, the concentration of its dissolution in water is affected by the frequency and time interval of the flush button, and the disinfection and cleaning effect is uncontrollable. Moreover, if it is not used for a long time, the solid disinfectant will continue to dissolve, resulting in waste, and the concentration is uncontrollable. In the long run, it will cause damage to the environment, sanitary appliances, and pipeline infrastructure. Using liquid disinfectants for spraying and disinfection cannot achieve timely disinfection after each use of sanitary appliances. Therefore, a sanitary appliance disinfection system for defecation and urination that can adjust the disinfectant and automatically dispense a fixed amount based on the Venturi effect came into being. Summary of the Invention

[0004] In order to achieve the purpose of timely disinfection and sterilization of sanitary ware for defecation and urination, and the purpose of adjustable and automatic disinfection liquid dosage, the present invention provides the following technical solution: a sanitary ware disinfection liquid dosage system for defecation and urination based on the Venturi effect, comprising a water inlet valve, a Venturi tube, and a liquid storage device arranged in a water tank, characterized in that the water inlet valve is connected to the Venturi tube to provide the fluid required to produce the Venturi effect.

[0005] The venturi tube is connected to the liquid storage device, and the inlet pipe at the throat of the venturi tube and the bottom outlet of the liquid storage device form a drainage channel.

[0006] In static state, the water inlet valve is closed, the check valve core in the inlet pipe of the venturi tube throat is closed, and the drainage channel is in a closed state;

[0007] When water enters the water inlet valve, the water flows into the Venturi tube through the water outlet interface of the water inlet valve. Under the action of the Venturi effect, the check valve core in the inlet pipe at the throat of the Venturi tube opens, the drainage channel is connected, and the disinfectant in the liquid storage device enters the Venturi tube through the drainage channel and mixes with the water, and flows into the water tank through the outlet end of the Venturi tube for storage or direct flushing.

[0008] The system for dispensing disinfectant for sanitary ware based on the Venturi effect is characterized in that the drain outlet at the bottom of the water inlet valve is connected to the water outlet interface, and a water flow regulating valve is provided at the water seal replenishment outlet on the upper part of the water inlet valve. The water flow regulating valve can be used to adjust the water flow rate entering the Venturi tube through the water outlet interface, thereby adjusting the adsorption force of the Venturi effect.

[0009] The liquid storage device is characterized by comprising a shell, the inner cavity of the shell forming a liquid storage space, and further comprising a liquid outlet and a sewage outlet arranged at the bottom of the shell, and a liquid filling port arranged at the top.

[0010] The liquid storage device also includes an adjustment component for controlling the size of the liquid outlet hole, an adjustment scale dial on the top of the liquid storage device shell, a center hole of the scale dial, a self-locking adjustment knob, and an adjustment connecting rod with a conical head. The conical head of the adjustment connecting rod is located on the liquid outlet that constitutes the drainage channel. The adjustment knob is fixedly connected to the adjustment connecting rod. The size of the liquid outlet hole is adjusted through the self-locking adjustment knob and the adjustment connecting rod to control the flow rate of the disinfectant entering the Venturi tube. This can solve the problem of adsorption force difference caused by water pressure difference, which affects the concentration of disinfectant in the water tank.

[0011] The liquid storage device is characterized in that the liquid storage device is fixedly installed in the water tank.

[0012] The Venturi effect-based sanitary ware disinfectant delivery system is characterized in that it also includes a mixing and silencing device, which is connected to the outlet end of the Venturi tube and consists of an impeller and a silencer orifice. The water flow drives the impeller to rotate, and the rotating impeller mixes the water and the disinfectant. The silencer orifice reduces the water flow noise.

[0013] The system for dispensing disinfectant for sanitary ware based on the Venturi effect is characterized in that the Venturi tube is fixedly connected to the liquid storage device through a throat inlet tube, and also includes a spring, a check valve core, and a rubber gasket with a mouth arranged in the throat inlet tube of the Venturi tube to form a valve to prevent liquid backflow.

[0014] Compared with the existing technology, the beneficial effects of the present invention are:

[0015] 1. By fully utilizing the Venturi effect, the automatic delivery of disinfectant is realized;

[0016] 2. Through the application of various regulating valves on the system, the amount of disinfectant added can be quantitatively adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a cross-sectional view of the present invention:

[0019] Figure 2 It is a top view of the present invention:

[0020] Figure 3 This is a front cross-sectional view of the connection between the liquid storage device 5 and the overflow pipe 6 according to an embodiment of the present invention:

[0021] Figure 4 : This is a top view of the connection between the liquid storage device 5 and the overflow pipe 6 according to an embodiment of the present invention:

[0022] Figure 5 yes Figure 1 A partial enlarged view of point A in the middle:

[0023] Figure 6 : is a top sectional view of the liquid storage device 5:

[0024] In the figure: 1-water inlet valve, 101-tee, 102-O-ring, 110-regulating valve, 111-tee interface, 112-water pipe, 2-hose, 211-clip, 212-O-ring, 3-Venturi tube, 301-inlet end, 302-outlet end, 303-inlet pipe, 312-spring, 313-check valve core, 314-rubber gasket, 4-mixing device, 431-impeller, 432-orifice plate, 5-liquid storage device, 501-liquid filling port, 510-liquid outlet, 511-adjusting connecting rod, 513-self-locking adjusting knob, 512-scale dial, 520-disassembly drain hole, 521-drain outlet screw, 540-rolling card, 541-screw, 6-overflow pipe. DETAILED DESCRIPTION

[0025] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for the purpose of describing the present invention and simplifying the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "installation," "installation," "connection," and "connection" should be understood broadly. For example, "connection" can refer to fixed, detachable, or integral connection; it can refer to direct connection, indirect connection through an intermediary, or internal connection between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0028] Example 1

[0029] The system is applied to sanitary appliances for defecation and urination with a water tank, such as a toilet, a squat toilet, etc.

[0030] See also Figure 1The spare space in the water tank can be used to install a sanitary appliance disinfectant delivery system for defecation and urination based on the Venturi effect, including an inlet valve 1, which does not affect the original water inlet valve height adjustment and backflow prevention function. A flow regulating valve 110 is added to the water seal replenishment outlet on the upper part of the water inlet valve 1. At the bottom of the water inlet valve 1, the water outlet of the water inlet valve 1 is connected to the water outlet interface to converge the water flow into the Venturi tube to provide water flow. There are many ways to connect the water outlet interface at the drain outlet of the water inlet valve 1, such as gluing, hot melting, clamps, socketing, one-piece molding, etc. This embodiment adopts a socketing of an angle-adjustable quick-spiking tee 101, and uses a hose 2 to connect the tee interface 111 of the water inlet valve 1 to the inlet water end 301 of the Venturi tube 3 to form a water inlet channel. The channel is located at the bottom of the water tank and does not affect the original drainage system. The fixed connection between the venturi tube 3 and the liquid storage device 5 is the fixed connection between the venturi tube throat inlet pipe 303 and the liquid storage device 5. The connection methods include adhesive connection, hot melt, clamp, threaded connection, and integral molding. In this embodiment, a hot melt connection method is used to fix the venturi tube throat inlet pipe 303 and the liquid outlet 510 at the bottom of the liquid storage device 5. The liquid outlet 510 at the bottom of the liquid storage device 5 and the venturi tube throat inlet pipe 303 constitute a drainage channel. The bottom of the throat inlet pipe 303 is a stepped hole shape, and a spring 312 and a check valve core 313 are installed on the step, which together with the rubber gasket with a mouth 314 constitute an intake and liquid backflow prevention valve; the size of the through-hole of the liquid outlet 510 of the liquid storage device 5 is controlled by a flow adjustment component, including an adjustment connecting rod 511 with a conical head, a self-locking adjustment knob 513, an adjustment scale dial 512 at the top of the liquid storage device 5, a through-hole in the center of the scale dial, and an adjustment knob 513 fixedly connected to the adjustment connecting rod 511. The size of the through-hole of the liquid outlet 510 is controlled by the adjustment knob 513 to adjust the dose of the inhaled disinfectant, thereby achieving a stable and adjustable concentration of the disinfectant to achieve the purpose of saving disinfectant. The water outlet end 302 of the venturi tube 3 is connected to an impeller 431 and an orifice plate 432 . The impeller 431 rotates to fully mix the water mixed with the disinfectant, and the orifice plate 432 reduces the water flow noise.

[0031] During a flush, water enters the inlet valve 1, passes through the three-way connector 111, and enters the water inlet channel 2. The water flows through the venturi tube 3. At the narrowest point of the pipe, the dynamic pressure reaches its maximum value, while the static pressure reaches its minimum value. The water velocity increases due to the reduced cross-sectional area of ​​the flow. The entire water flow undergoes the pipe narrowing process at the same time, causing the pressure to decrease simultaneously. This creates a pressure differential, which provides an external suction force for the water flow. Under this external suction, the spring 312 contracts, the check valve core 313 moves downward, and the drainage channel is opened. The disinfectant in the liquid storage space within the liquid storage device 5 housing passes through the liquid storage device outlet and is introduced into the venturi tube for mixing. After mixing and silencing, it flows into the water tank for storage. When the key is pressed to flush, the water mixed with the disinfectant is flushed out, thereby disinfecting both sit-down toilets and squat toilets. The liquid storage device 5 of the system is fixedly mounted within the water tank and can be fixedly connected to the overflow pipe 6 and the water tank wall. In this embodiment, the liquid storage device 5 is fixedly connected to the overflow pipe 6. An arc-shaped mounting groove is provided on the side of the shell of the liquid storage device 5. The liquid storage device 5 is buckled into the fixing groove of the liquid storage device 5 with a T-shaped screw 541, and is fixed to the upper and lower positions of the overflow pipe with a pipe clamp 540. The liquid storage device 5 is then locked and fixed with a screw 540 for use.

[0032] The device only needs to be debugged once, and in subsequent use, each flushing action can ensure the input amount of disinfectant to achieve the sterilization effect. At the same time, because the liquid storage device can store a large amount of disinfectant, it requires less manpower and is particularly suitable for places with high traffic flow.

[0033] Example 2 The system is applied to sanitary appliances for defecation and urination that do not use a water tank, such as urinals.

[0034] The inlet end 301 of the venturi tube 3 is connected to the outlet of the urinal's water inlet valve. When water enters the venturi tube 3, the Venturi effect causes the check valve core 313 of the venturi tube 3 to be sucked downward, opening the drainage channel. The disinfectant stored in the liquid reservoir 5 enters the venturi tube 3 through the liquid outlet 510 and flows out through the outlet end 302 to flush the urinal. The flow control components of the liquid reservoir 5, including the flow scale dial 512, the adjustment rod 511, and the self-locking adjustment knob 513, adjust the disinfectant flow rate, ultimately achieving adjustable, quantitative, and automatic disinfectant delivery.

[0035] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A sanitary ware disinfectant delivery system based on the Venturi effect, comprising a water inlet valve (1) arranged in a water tank, a Venturi tube (3), and a liquid storage device (5), characterized in that: The water inlet valve (1) is connected to the venturi tube (3) to provide the fluid required to generate the venturi effect. The venturi tube (3) is connected to the liquid storage device (5). The venturi tube throat inlet pipe (303) and the bottom liquid outlet (510) of the liquid storage device (5) form a drainage channel. In static state, the water inlet valve (1) is closed, the check valve in the venturi tube throat inlet pipe (303) is closed, and the drainage channel is in a closed state. A tee (101) with an adjustable angle is connected by sleeve, and a hose (2) is used to connect the tee interface (111) of the water inlet valve (1) to the inlet water end (301) of the venturi tube (3). The venturi tube throat inlet pipe (303) is fixedly connected to the bottom liquid outlet (510) of the liquid storage device (5) by a hot melt connection method. When water enters the water inlet valve (1), the water flows through the three-way interface (111) of the water inlet valve (1) and flows into the venturi tube (3). Under the action of the venturi effect, the check valve core (313) in the inlet pipe (303) at the throat of the venturi tube opens, the drainage channel is connected, and the disinfectant in the liquid storage device (5) enters the venturi tube (3) through the drainage channel and mixes with the water, and is directly flushed through the outlet end (302) of the venturi tube; The liquid storage device (5) further includes an adjustment component for controlling the size of the liquid outlet through-hole, which is composed of an adjustment dial (512) on the top of the liquid storage device housing, a self-locking adjustment knob (513), and an adjustment connecting rod (511) with a conical head. The dial (512) has a central through-hole, and the conical head of the adjustment connecting rod (511) is located on the liquid outlet (510) constituting the drainage channel. The self-locking adjustment knob (513) is fixedly connected to the adjustment connecting rod (511). By turning the self-locking adjustment knob (513), the adjustment connecting rod (511) is adjusted to adjust the size of the through-hole of the liquid outlet (510), thereby controlling the flow rate of the disinfectant entering the venturi tube (3); The liquid storage device (5) includes a housing; the venturi tube (3) is fixedly connected to the housing of the liquid storage device (5) via the venturi tube throat inlet pipe (303), and further includes a spring (312), a check valve core (313), and a rubber gasket with a mouth (314) arranged in the venturi tube throat inlet pipe (303), forming a valve to prevent liquid backflow; The mixing and silencing device is also included. The mixing and silencing device is connected to the outlet end (302) of the venturi tube (3) and consists of an impeller (431) and a silencing orifice plate. The water flow drives the impeller (431) to rotate. The rotating impeller (431) mixes the water and the disinfectant. The silencing orifice plate reduces the water flow noise. The liquid storage device (5) is fixedly installed in the water tank.

2. The venturi effect-based disinfectant delivery system for sanitary ware according to claim 1, characterized in that: The bottom drain port of the water inlet valve (1) is connected to a three-way interface (111), and the water seal replenishment outlet on the upper part of the water inlet valve is provided with a water flow regulating valve (110).

3. The venturi effect-based disinfectant delivery system for sanitary ware according to claim 1, characterized in that: The inner cavity of the shell of the liquid storage device (5) forms a liquid storage space, and further comprises a liquid outlet (510) and a sewage outlet arranged at the bottom of the shell, and a liquid filling port (501) arranged at the top.

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