Lotion diluting and blending device for flushing water outlet pipeline
By installing a check valve and a Venturi mixer in the flushing water outlet pipeline, the automatic dilution and mixing of detergent is achieved, solving the problems of detergent waste and pollution, and realizing the effects of saving resources and protecting the environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING KANGZHIWEI SCI & TECH
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-26
AI Technical Summary
In the existing technology, the use of hand sanitizer and other detergents has problems of waste and pollution, especially since high concentrations of concentrate need to be manually squeezed out during the rinsing process, resulting in resource waste and environmental pollution.
A main check valve, a manual three-way valve, a three-way joint, and a Venturi mixer are installed in the flushing water outlet pipeline. The water flow automatically draws the detergent into the container, realizing automatic dilution and mixing of the detergent, avoiding manual squeezing of the detergent, and reducing waste and pollution.
It enables automatic dilution and mixing of detergents, saving detergent usage, reducing water consumption, avoiding hand contact with high-concentration concentrate, protecting hand health, and reducing environmental pollution.
Smart Images

Figure CN224281465U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a detergent dilution and mixing device, and more particularly to a detergent dilution and mixing device for a flushing water outlet pipeline. Background Technology
[0002] Currently, hand sanitizer in public restrooms is dispensed from manual containers near the sinks. Users manually squeeze the sanitizer onto their hands, dilute it with water, rub it in, and then rinse their hands thoroughly. However, because hand sanitizer is a highly concentrated solution, people often feel they don't dispense enough, resulting in waste. Furthermore, the more sanitizer dispensed, the more water is needed for rinsing, leading to unnecessary water waste. Additionally, hand sanitizer often contains unavoidable harmful components, polluting the water environment in addition to resource waste. Similar waste and pollution also occur with handwashing facilities, kitchen sinks, and showerheads. This is clearly a real problem that needs to be addressed but has yet to be solved. Utility Model Content
[0003] The purpose of this invention is to overcome the above-mentioned defects of the prior art and provide a detergent dilution and mixing device for flushing water pipes.
[0004] To achieve the above objectives, the detergent dilution and mixing device for this novel flushing outlet pipeline is characterized by the following: From upstream to downstream, the flushing outlet pipeline is sequentially equipped with a main check valve, a manual three-way valve, and a three-way joint. The manual three-way valve and the three-way joint connect to a main and a secondary parallel pipeline. The secondary parallel pipeline is connected in series with a Venturi mixer. The side suction port of the Venturi mixer is connected to the bottom of the detergent container via a suction pipeline provided by the secondary check valve. With this configuration, operating the manual three-way valve to open the main parallel pipeline allows for normal flushing. Operating the manual three-way valve to open the secondary parallel pipeline automatically draws in detergent through the water flow via the Venturi mixer, and the diluted detergent-water mixture is discharged from the flushing outlet pipeline. This automatic detergent dilution avoids detergent waste, eliminates the hassle of manually squeezing detergent, and solves the problem of excessive detergent pollution. The main check valve prevents detergent from flowing back into the water supply line, while the secondary check valve prevents water from being forced into the detergent container, ensuring reliable operation. Hands no longer come into contact with the undiluted detergent, protecting them from corrosion. It features automatic bypass dilution of detergent, making it simple, reliable, and easy to use. It saves detergent, avoids waste and contamination from hand-dispensing, and, most importantly, protects hands from direct contact with the undiluted detergent.
[0005] As an optimization, the liquid level in the detergent container is lower than that in the side suction port. This prevents unnecessary detergent leakage.
[0006] As an optimization, the detergent container is positioned on one side of the Venturi mixer. This helps reduce detergent suction resistance.
[0007] As an optimization, the manual three-way valve is connected downwards to the main check valve and the upstream section of the flushing outlet pipeline. The manual three-way valve and the three-way joint are vertically connected to the main parallel pipeline. The manual three-way valve and the three-way joint are also laterally connected to the secondary parallel pipeline. The vertical section of the secondary parallel pipeline is connected in series with a vertical Venturi mixer with a side suction port. The three-way joint is connected upwards to the downstream section of the flushing outlet pipeline. The side suction port of the vertical Venturi mixer is connected to the bottom of the detergent container via a suction pipeline equipped with a secondary check valve. This configuration facilitates disassembly and maintenance.
[0008] As an optimization, the vertical Venturi mixer has a vertical elongated shell with a downward conical tube and an upward conical tube connected in series with parallel pipes. The upper part of the upward conical tube is inserted into the lower port of the downward conical tube. The lower part of the downward conical tube has a side suction port, and the suction pipe connected to the side suction port is led out laterally from the vertical elongated shell, resulting in high suction efficiency. Alternatively, the lower part of the downward conical tube has an annular suction port or annularly spaced annular suction holes. The vertical elongated shell is sealed and connected to the downward conical tube and the upward conical tube. The vertical elongated shell is connected to the suction pipe. The jacket space inside the vertical elongated shell has a buffer suction effect, which helps the washing liquid to form pre-foam in the jacket space and significantly improves the mixing efficiency of the washing liquid and water.
[0009] As an optimization, the elongated shell is laterally connected to the suction line. This helps reduce suction resistance and facilitates lateral dispensing of detergent containers.
[0010] As an optimization, the Y-type manual three-way valve connects downwards to the main check valve and the upstream section of the flushing outlet pipeline. The Y-type manual three-way valve and the inverted Y-type three-way joint vertically connect the main and auxiliary parallel pipelines. The auxiliary parallel pipeline is connected in series with a vertical Venturi mixer equipped with a side suction port. The inverted Y-type three-way joint connects upwards to the downstream section of the flushing outlet pipeline. The side suction port of the Venturi mixer connects to the bottom of the detergent container via a suction pipeline equipped with an auxiliary check valve. This design occupies little space and is easy to install.
[0011] As an optimization, the vertical Venturi mixer has a side suction port in the narrow section of a vertical throat that is thinner in the middle and gradually thickens at both ends. The side suction port is connected to the bottom of the detergent container via a suction line equipped with a secondary check valve, which facilitates manufacturing. Alternatively, the vertical Venturi mixer has a vertical throat that is thinner in the middle and gradually thickens at both ends, connected vertically within a secondary parallel line. A jacketed cavity is formed between the outside of the vertical throat and the inside of the secondary parallel line. A side suction port connected to the jacketed cavity is located at the lower part of the thickened upper section of the vertical throat. The wall of the secondary parallel line within the jacketed cavity is connected to the suction line. The jacketed cavity facilitates both suction buffering and foam formation of the detergent within.
[0012] As an optimization, the vertical throat is a side-concave throat that is biased to one side, which is convenient for manufacturing; the Y-type manual three-way valve, the inverted Y-type three-way joint, the main and auxiliary parallel pipelines that are vertically connected between them, and the vertical throat with a side suction port in the middle and fine parts are integrated into one piece, which is convenient for installation and use.
[0013] As an optimization, the middle section of the side suction port is designed as a straight tube, which facilitates manufacturing, or a tapered tube that is thicker at the top and thinner at the bottom, which helps to increase the suction force; the secondary parallel pipe wall in the upper part of the jacket cavity is connected to the suction pipe in the area above the side suction port, which helps to avoid air stagnation in the upper part of the jacket cavity, thus affecting the suction efficiency.
[0014] In summary, this new invention integrates the rinsing water pipes of faucets, showerheads, etc., with a detergent dilution and mixing device. A switch directly sprays out the diluted detergent solution or a mixture of diluted detergent and foam, allowing a small amount of detergent to produce a large amount of diluted detergent solution or a mixture of diluted detergent and foam. This significantly reduces detergent usage, optimizes the rinsing process, and is more convenient than before. Furthermore, it requires no electricity and incurs no additional costs. Detergents include shampoo, hand soap, dishwashing liquid, and dishwashing liquid. While saving detergent, it also conserves a significant amount of water by improving rinsing efficiency. Additionally, by reducing drainage and detergent discharge, it reduces the load and costs associated with wastewater treatment.
[0015] After adopting the above technical solution, the detergent dilution and mixing device of this new flushing water pipeline has the advantages of automatic bypass dilution of detergent, which is simple, reliable and easy to implement, saves detergent, avoids waste and pollution caused by manual mixing of detergent, and in particular, the hands no longer come into contact with the detergent concentrate, which is beneficial to hand protection. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the first embodiment of the detergent dilution and mixing device for flushing water pipes of this utility model; Figure 2 This is a schematic diagram of the second embodiment of the detergent dilution and mixing device for flushing water pipes of this utility model; Figure 3 This is a schematic diagram of the third embodiment of the detergent dilution and mixing device for flushing water pipes of this utility model; Figure 4 This is a schematic diagram of the fourth embodiment of the detergent dilution and mixing device for flushing water pipes of this utility model; Figure 5 This is a schematic diagram of the fifth embodiment of the detergent dilution and mixing device for flushing the water outlet pipeline of this utility model. Detailed Implementation
[0017] Example 1, as Figure 1As shown, the detergent dilution and mixing device for the flushing outlet pipeline of this utility model consists of a main check valve 91, a manual three-way valve 2, and a three-way joint 3 arranged sequentially from upstream to downstream in the flushing outlet pipeline. The manual three-way valve 2 and the three-way joint 3 are connected to main and auxiliary parallel pipelines 41 and 42. The auxiliary parallel pipeline 42 is connected in series with a Venturi mixer 5. The side suction port of the Venturi mixer 5 is connected to the bottom of the detergent container 7 via a suction pipeline 6 provided by the auxiliary check valve 92. With this configuration, when the manual three-way valve is operated to open the main parallel pipeline, normal flushing can be performed. When the manual three-way valve is operated to open the auxiliary parallel pipeline, detergent can be automatically drawn in by the water flow through the Venturi mixer and the diluted detergent-water mixture can be discharged from the flushing outlet pipeline. This achieves automatic detergent dilution, avoids detergent waste, eliminates the trouble of manually squeezing detergent, and solves the problem of excessive detergent pollution. The main check valve prevents detergent from flowing back into the water supply line, while the secondary check valve prevents water from being forced into the detergent container, ensuring reliable operation. Hands no longer come into contact with the undiluted detergent, protecting them from corrosion. It features automatic bypass dilution of detergent, making it simple, reliable, and easy to use. It saves detergent, avoids waste and contamination from hand-dispensing, and, most importantly, protects hands from direct contact with the undiluted detergent.
[0018] Specifically, the liquid level in the detergent container 7 is lower than that in the side suction port. Specifically, the detergent container 7 is located on one side of the Venturi mixer 5.
[0019] Specifically, the manual three-way valve 2 is connected downward to the main check valve 91 and the upstream section 11 of the flushing outlet pipeline. The manual three-way valve 2 and the three-way joint 3 are vertically connected to the main parallel pipeline 41. The manual three-way valve 2 and the three-way joint 3 are laterally connected to the secondary parallel pipeline 42. The vertical section of the secondary parallel pipeline 42 is connected in series with a vertical venturi mixer 5 with a side suction port. The three-way joint 3 is connected upward to the downstream section 12 of the flushing outlet pipeline. The side suction port of the vertical venturi mixer 5 is connected to the bottom of the detergent container 7 through the suction pipeline 6 with a secondary check valve 92.
[0020] Example 2, as Figure 2 As shown, the difference between the detergent dilution and mixing device for the flushing water pipe of this utility model and the one described in Embodiment 1 is that the vertical Venturi mixer is a vertical elongated housing 50 with a downward conical pipe 52 and an upward conical pipe 51 connected in series with parallel pipes 42. The upper part of the upward conical pipe 51 is inserted into the lower port of the downward conical pipe 52. The lower part of the downward conical pipe 52 is provided with a side suction port, and the suction pipe 6 connected to the side suction port is laterally led out of the vertical elongated housing 50. The vertical elongated housing 50 is laterally connected to the suction pipe 6.
[0021] Example 3, as Figure 3As shown, the difference between the detergent dilution and mixing device for the flushing water pipe of this utility model and the above-mentioned embodiment two is that the lower part of the downward conical tube 52 is provided with a ring suction port or a ring-shaped spaced ring suction hole, and the vertical elongated shell 50 seals and passes through the downward conical tube 52 and the upward conical tube 51. The vertical elongated shell 50 is connected to the suction pipe 6. The vertical elongated shell 50 is laterally connected to the suction pipe 6.
[0022] Example 4, as Figure 4 As shown, the difference between the detergent dilution and mixing device of the flushing water pipeline of this utility model and the above embodiment 1 is that the Y-type manual three-way valve 21 is connected downward to the main check valve 91 and the upstream section 11 of the flushing water pipeline. The Y-type manual three-way valve 21 and the inverted Y-type three-way joint 31 are vertically connected to the main and auxiliary parallel pipelines 41 and 42. The auxiliary parallel pipeline 42 is connected in series with a vertical Venturi mixer with a side suction port. The inverted Y-type three-way joint 31 is connected upward to the downstream section 12 of the flushing water pipeline. The side suction port of the Venturi mixer is connected to the bottom of the detergent container 7 through the suction pipeline 6 with the auxiliary check valve 92.
[0023] Specifically, the vertical venturi mixer is a vertical throat 53 that is thin in the middle and gradually thickens at both ends, with a side suction port in the thinner part of the middle section. The side suction port is connected to the bottom of the detergent container 7 through a suction pipe 6 equipped with a secondary check valve 92. More specifically, the vertical throat 53 is a side-concave throat pipe offset to one side; the Y-type manual three-way valve 21, the inverted Y-type three-way joint 31, and the main and secondary parallel pipes 41 and 42 vertically connected between them, as well as the vertical throat 53 with the side suction port in the thinner part, are integrated into one unit. The thinner part of the side suction port can be a straight pipe or a tapered pipe that is thicker at the top and thinner at the bottom.
[0024] Example 5, as Figure 5 As shown, the difference between the detergent dilution and mixing device for flushing the water outlet pipe of this utility model and the above-mentioned embodiment four is that the vertical Venturi mixer is a vertically connected vertical throat pipe 53 with a narrow middle and gradually thickening ends inside the secondary parallel pipe 42. The vertical throat pipe 53 is a side-concave throat pipe offset to one side. A jacket cavity 54 is formed outside the vertical throat pipe 53 and inside the secondary parallel pipe 42. The lower part of the upper thickened section of the vertical throat pipe 53 is provided with a side suction port connected to the jacket cavity 54. The wall of the secondary parallel pipe 42 of the jacket cavity 54 is connected to the suction pipe 6. The narrow middle part of the side suction port is a tapered pipe with a thicker upper part and a thinner lower part. The wall of the secondary parallel pipe in the upper part of the jacket cavity 54 is connected to the suction pipe 6 in the area above the side suction port.
[0025] In summary, this novel detergent dilution and mixing device for flushing water pipes has the advantages of automatic bypass dilution, ease of use, saving detergent, avoiding waste and contamination from manual mixing, and especially protecting hands from direct contact with the undiluted detergent.
Claims
1. A detergent dilution and mixing device for flushing water pipes, characterized in that... The flushing water pipeline is equipped with a main check valve, a manual three-way valve, and a three-way joint in sequence from upstream to downstream. The manual three-way valve and the three-way joint are connected to the main and auxiliary parallel pipelines. The auxiliary parallel pipeline is connected in series with a Venturi mixer. The side suction port of the Venturi mixer is connected to the bottom of the detergent container through the suction pipeline equipped with the auxiliary check valve.
2. The detergent dilution and mixing device for flushing water pipes according to claim 1, characterized in that... The liquid level in the detergent container is lower than that in the side suction port.
3. The detergent dilution and mixing device for flushing water pipes according to claim 1, characterized in that... The detergent container is located on one side of the Venturi mixer.
4. The detergent dilution and mixing device for flushing water pipes according to claim 1, characterized in that... The manual three-way valve is connected downwards to the main check valve and the upstream section of the flushing outlet pipeline. The manual three-way valve and the three-way joint are vertically connected to the main parallel pipeline. The manual three-way valve and the three-way joint are laterally connected to the secondary parallel pipeline. The vertical section of the secondary parallel pipeline is connected in series with a vertical Venturi mixer with a side suction port. The three-way joint is connected upwards to the downstream section of the flushing outlet pipeline. The side suction port of the vertical Venturi mixer is connected to the bottom of the detergent container through a suction pipeline with a secondary check valve.
5. The detergent dilution and mixing device for flushing water pipes according to claim 4, characterized in that... The vertical venturi mixer has a vertically elongated housing containing a downward conical tube and an upward conical tube with parallel connecting pipes in series. The upper part of the upward conical tube is inserted into the lower port of the downward conical tube. The lower part of the downward conical tube has a side suction port, and the suction pipe connected to the side suction port is led out laterally from the vertically elongated housing. Alternatively, the lower part of the downward conical tube has an annular suction port or annularly spaced annular suction holes. The vertically elongated housing is sealed and connected to the downward conical tube and the upward conical tube, and the vertically elongated housing is connected to the suction pipe.
6. The detergent dilution and mixing device for flushing water pipes according to claim 5, characterized in that... The vertically elongated shell is laterally connected to the suction line.
7. The detergent dilution and mixing device for flushing water pipes according to claim 1, characterized in that... The Y-type manual three-way valve connects downwards to the main check valve and the upstream section of the flushing outlet pipe. The Y-type manual three-way valve and the inverted Y-type three-way joint vertically connect the main and auxiliary parallel pipes. The auxiliary parallel pipe is connected in series with a vertical Venturi mixer equipped with a side suction port. The inverted Y-type three-way joint connects upwards to the downstream section of the flushing outlet pipe. The side suction port of the Venturi mixer is connected to the bottom of the detergent container through a suction pipe equipped with an auxiliary check valve.
8. The detergent dilution and mixing device for flushing water pipes according to claim 7, characterized in that... The vertical Venturi mixer has a side suction port in the middle of a vertical throat tube that is thin in the middle and gradually thickens at both ends; the side suction port is connected to the bottom of the detergent container through a suction line equipped with a secondary check valve; or the vertical Venturi mixer has a vertical throat tube that is thin in the middle and gradually thickens at both ends connected vertically inside a secondary parallel line, forming a jacketed cavity outside the vertical throat tube and inside the secondary parallel line, with a side suction port connected to the jacketed cavity at the lower part of the upper thickened section of the vertical throat tube, and the secondary parallel line wall of the jacketed cavity connected to the suction line.
9. The detergent dilution and mixing device for flushing water pipes according to claim 8, characterized in that... The vertical throat is a side-concave throat that is offset to one side; the Y-type manual three-way valve, the inverted Y-type three-way joint, the main and auxiliary parallel pipelines vertically connected between them, and the vertical throat with a side suction port in the middle and fine parts are integrated into one piece.
10. The detergent dilution and mixing device for flushing water pipes according to claim 8, characterized in that it is provided with The middle section of the side suction port is a straight tube or a tapered tube that is thicker at the top and thinner at the bottom; the secondary parallel pipeline wall in the upper part of the jacket cavity connects to the suction pipeline in the area above the side suction port.