Multi-purpose outdoor spraying equipment for human settlement field

Abstract

The utility model discloses multi-purpose outdoor spraying equipment in the field of human settlement, which comprises a shell, a first electromagnetic three-way valve is arranged in the shell, the input end of the first electromagnetic three-way valve is communicated with a water inlet end, and the output end of the first electromagnetic three-way valve is communicated with flowmeters at equal intervals. A flow meter is arranged in the shell, one end, far away from the first electromagnetic three-way valve, of the flow meter is communicated with a flow regulator, liquid storage tanks are arranged in the shell at equal intervals, the flow regulator is communicated with the liquid storage tanks, medicine storage tanks are arranged in the shell at equal intervals, the bottoms of the medicine storage tanks are communicated with a metering pump, and the output end of the metering pump is communicated with the liquid storage tanks. The utility model relates to the technical field of outdoor disinfection and killing in the human settlement field, and solves the problems that in the prior art, spray disinfection and killing equipment arranged outdoors can only dilute and spray out single liquid medicine, and the liquid medicine or the equipment needs to be replaced when different insect pests are disinfected and killed, so that the disinfection and killing process is relatively tedious or the equipment cost is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of outdoor disinfection in the field of human settlement, in particular to a multi-purpose outdoor spraying device in the field of human settlement. Background Art

[0002] Outdoor mosquito and fly prevention and control is an important aspect of improving the quality of residents' lives. Spring and summer are the peak seasons for infectious diseases. Mosquitoes, flies and moths are the main disease transmission sources and allergens. At present, the products used for outdoor mosquito and fly control in the field of human settlement mainly include mosquito repellent lamps and mosquito catching lamps. Secondly, it is through manual spraying of liquid medicine and through the deployment of fixed spraying equipment to use the laid spraying pipeline for disinfection. In the prior art, the spraying and disinfection equipment deployed outdoors can only dilute and spray a single liquid medicine. When disinfecting different pests, it is necessary to replace the liquid medicine or equipment, resulting in a more cumbersome disinfection process or a higher equipment cost. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the utility model provides a multi-purpose outdoor spraying device in the field of human settlement, which solves the problem that in the prior art, the spraying and disinfection equipment deployed outdoors can only dilute and spray a single liquid medicine. When disinfecting different pests, it is necessary to replace the liquid medicine or equipment, resulting in a more cumbersome disinfection process or a higher equipment cost.

[0004] To achieve the above object, the utility model is realized through the following technical solutions: A multi-purpose outdoor spraying device in the field of human settlement includes a housing. A first electromagnetic three-way valve is arranged inside the housing. The input end of the first electromagnetic three-way valve is communicated with a water inlet end. The output ends of the first electromagnetic three-way valve are equidistantly communicated with flow meters. One end of the flow meter far away from the first electromagnetic three-way valve is communicated with a flow regulator. Liquid storage tanks are equidistantly arranged inside the housing. The flow regulator is communicated with the liquid storage tanks. Medicine storage tanks are equidistantly arranged inside the housing. A metering pump is communicated with the bottom of the medicine storage tank. The output end of the metering pump is communicated with the liquid storage tanks. A diaphragm pump is arranged inside the housing. The input end of the diaphragm pump is communicated with a second electromagnetic three-way valve. The second electromagnetic three-way valve is respectively communicated with two liquid storage tanks. The output end of the diaphragm pump is communicated with a third electromagnetic three-way valve. One end of the third electromagnetic three-way valve is communicated with a high-pressure pipe. The high-pressure pipe is equidistantly communicated with high-pressure nozzles at the end far away from the third electromagnetic three-way valve. A controller is arranged inside the housing. The first electromagnetic three-way valve, the flow meters, the metering pump, the diaphragm pump, the second electromagnetic three-way valve and the third electromagnetic three-way valve are all electrically connected to the controller.

[0005] Preferably, one end of the third electromagnetic three-way valve is connected to a fourth electromagnetic three-way valve. The fourth electromagnetic three-way valve is equidistantly connected to a return pipe. The end of the return pipe away from the fourth electromagnetic three-way valve is connected to a return regulating valve. The two return regulating valves are respectively connected to the liquid storage tank. The fourth electromagnetic three-way valve is electrically connected to the controller.

[0006] Preferably, a first liquid level sensor is installed on the top of the liquid storage tank, and a second liquid level sensor is installed on the top of the medicine storage tank. Both the first liquid level sensor and the second liquid level sensor are electrically connected to the controller.

[0007] Preferably, the controller is electrically connected to a wireless signal transmission component.

[0008] Preferably, the water inlet end is connected to a water inlet filter. The output end of the water inlet filter is connected to the first electromagnetic three-way valve. A medicine extraction filter is arranged inside the liquid storage tank. The medicine extraction filter is connected to the second electromagnetic three-way valve.

[0009] The utility model provides an outdoor spraying device for the multi-purpose human settlement field, which has the following beneficial effects: Through the cooperation among the housing, the water inlet end, the first electromagnetic three-way valve, the flowmeter, the flow regulator, the liquid storage tank, the medicine storage tank, the metering pump, the diaphragm pump, the second electromagnetic three-way valve, the third electromagnetic three-way valve, the high-pressure pipe, the high-pressure nozzle and the controller, by arranging two liquid storage tanks and two medicine storage tanks in the outdoor spraying device and precisely controlling the water supply amount and the liquid medicine amount, the two liquid storage tanks can respectively mix and dilute two different liquid medicines according to corresponding concentrations and store them in the liquid storage tanks. When the outdoor spraying device is used for killing different pests, by controlling the second electromagnetic three-way valve, the liquid storage tank connected to the diaphragm pump can be switched, so that the liquid medicine can be quickly replaced for spraying, the replacement of the liquid medicine can be made more convenient, and thus the operation interruption time can be reduced. In this way, the outdoor spraying device can more flexibly and efficiently meet the diverse pest control requirements.

[0010] Through the cooperation among the liquid storage tank, diaphragm pump, second electromagnetic three-way valve, third electromagnetic three-way valve, controller, fourth electromagnetic three-way valve, return pipe and return regulating valve, when the liquid medicine in the liquid storage tank is insufficient, water and liquid medicine are proportionally added to the liquid storage tank. After the addition of water and liquid medicine is completed, the controller automatically controls the second electromagnetic three-way valve, third electromagnetic three-way valve and fourth electromagnetic three-way valve, which can connect the return pipe corresponding to the liquid storage tank with the newly added liquid medicine to the output end of the diaphragm pump, and at the same time connect the input end of the diaphragm pump to the liquid storage tank with the newly added liquid medicine, and start the motor of the diaphragm pump, which can circulate and stir the liquid medicine in the liquid storage tank, and the stirring time can be set according to the dissolution condition of the liquid medicine, so that water and liquid medicine can be mixed more quickly. After the stirring is completed, the control system automatically closes the diaphragm pump and the third electromagnetic three-way valve, and automatically closes the connection between the third electromagnetic three-way valve and the return pipe, realizing the automatic mixing and stirring of water and liquid medicine, which can ensure the high efficiency of liquid medicine dilution, and the whole process does not require manual intervention, thus helping to save manpower. Brief Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the present utility model.

[0012] In the figure: 1. housing; 2. water inlet end; 3. first electromagnetic three-way valve; 4. flowmeter; 5. flow regulator; 6. liquid storage tank; 7. medicine storage tank; 8. metering pump; 9. diaphragm pump; 10. second electromagnetic three-way valve; 11. third electromagnetic three-way valve; 12. high-pressure pipe; 13. high-pressure nozzle; 14. controller; 15. fourth electromagnetic three-way valve; 16. return pipe; 17. return regulating valve; 18. first liquid level sensor; 19. second liquid level sensor; 20. wireless signal transmission component; 21. water inlet filter; 22. medicine extraction filter. Detailed Embodiments

[0013] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0014] In the prior art, the spray disinfection and killing equipment deployed outdoors can only dilute and spray a single liquid medicine. When disinfecting and killing different pests, it is necessary to replace the liquid medicine or equipment, resulting in a more cumbersome disinfection and killing process or a higher equipment cost.

[0015] In view of this, the present utility model provides an outdoor spraying device for the multi-purpose human settlement field. Through the cooperation among a housing, a water inlet end, a first electromagnetic three-way valve, a flowmeter, a flow regulator, a liquid storage tank, a medicine storage tank, a metering pump, a diaphragm pump, a second electromagnetic three-way valve, a third electromagnetic three-way valve, a high-pressure pipe, a high-pressure nozzle and a controller, by arranging two liquid storage tanks and two medicine storage tanks in the outdoor spraying device, and precisely controlling the water supply amount and the liquid medicine amount, the two liquid storage tanks can respectively mix and dilute two different liquid medicines according to corresponding concentrations and store them in the liquid storage tanks. When the outdoor spraying device is used for killing different pests, by controlling the second electromagnetic three-way valve and switching the liquid storage tank connected to the diaphragm pump, the liquid medicine can be quickly replaced for spraying, making the replacement of the liquid medicine more convenient, reducing the operation interruption time, and enabling the outdoor spraying device to more flexibly and efficiently meet the diverse pest control requirements.

[0016] Those skilled in the art should connect all the electrical components in this case to their adapted power supplies through wires, and should select appropriate controllers and encoders according to the actual situation to meet the control requirements. For the specific connection and control sequence, reference should be made to the sequence of the electrical components working successively in the following working principle to complete the electrical connection. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of the electrical control will be made.

[0017] As Figure 1 can be seen, a multi-purpose outdoor spraying device for the human settlement field includes a housing 1. Inside the housing 1, a first electromagnetic three-way valve 3 is arranged. The input end of the first electromagnetic three-way valve 3 is communicated with a water inlet end 2. The output end of the first electromagnetic three-way valve 3 is equidistantly communicated with a flowmeter 4. One end of the flowmeter 4 away from the first electromagnetic three-way valve 3 is communicated with a flow regulator 5. Inside the housing 1, liquid storage tanks 6 are equidistantly arranged. The flow regulator 5 is communicated with the liquid storage tanks 6. Inside the housing 1, medicine storage tanks 7 are equidistantly arranged. The bottom of the medicine storage tank 7 is communicated with a metering pump 8. The output end of the metering pump 8 is communicated with the liquid storage tank 6. Inside the housing 1, a diaphragm pump 9 is arranged. The input end of the diaphragm pump 9 is communicated with a second electromagnetic three-way valve 10. The second electromagnetic three-way valve 10 is respectively communicated with the two liquid storage tanks 6. The output end of the diaphragm pump 9 is communicated with a third electromagnetic three-way valve 11. One end of the third electromagnetic three-way valve 11 is communicated with a high-pressure pipe 12. The end of the high-pressure pipe 12 away from the third electromagnetic three-way valve 11 is equidistantly communicated with high-pressure nozzles 13. The high-pressure nozzles 13 can be connected to the high-pressure pipe 12 in series or in parallel by multiple nozzles. Inside the housing 1, a controller 14 is arranged. The controller 14 is used to control each electrical component of the outdoor spraying device. The first electromagnetic three-way valve 3, the flowmeter 4, the metering pump 8, the diaphragm pump 9, the second electromagnetic three-way valve 10 and the third electromagnetic three-way valve 11 are all electrically connected to the controller 14;

[0018] In the specific implementation process, it is particularly worth noting that the housing 1 is the outer shell structure of the outdoor spraying device. The water inlet end 2 is used to supply water to the outdoor spraying device. Through the cooperation among the housing 1, the water inlet end 2, the first electromagnetic three-way valve 3, the flow meter 4, the flow regulator 5, the liquid storage tank 6, and the controller 14, the first electromagnetic three-way valve 3 is respectively connected to two liquid storage tanks 6. When the liquid level in the liquid storage tank 6 is too low and water needs to be added to a certain liquid storage tank 6, the controller 14 automatically controls the first electromagnetic three-way valve 3 to connect the water inlet end 2 to this liquid storage tank 6 to supply water to the liquid storage tank 6. After reaching the specified amount, the water supply automatically stops. During the water supply process, the flow meter 4 measures the water supply and transmits the measurement signal to the controller 14 in real time, facilitating the precise control of the water supply amount by the control system of the outdoor spraying device for the precise preparation of the liquid medicine. Through the cooperation among the housing 1, the liquid storage tank 6, the liquid medicine storage tank 7, the metering pump 8, and the controller 14, after the water supply to the liquid storage tank 6 is completed, the controller 14 automatically activates the metering pump 8 to transport the liquid medicine in the liquid medicine storage tank 7 to the liquid storage tank 6 and controls the liquid medicine delivery amount according to the mixing ratio of the liquid medicine and the water supply amount to ensure the precision of the liquid medicine mixing ratio. The high-pressure nozzles 13 can be connected to the high-pressure pipe 12 in series or parallel by multiple nozzles. The controller 14 is used to control each electrical component of the outdoor spraying device. Through the cooperation among the housing 1, the liquid storage tank 6, the diaphragm pump 9, the second electromagnetic three-way valve 10, the third electromagnetic three-way valve 11, the high-pressure pipe 12, the high-pressure nozzles 13, and the controller 14, when the liquid medicine needs to be sprayed, the controller 14 automatically controls the second electromagnetic three-way valve 10 and the third electromagnetic three-way valve 11 to connect the input end of the diaphragm pump 9 to a certain liquid storage tank 6 and connect the output end of the diaphragm pump 9 to the high-pressure pipe 12, and starts the diaphragm pump 9 to transport the liquid medicine in the liquid storage tank 6 to the high-pressure pipe 12, which is then sprayed by the high-pressure nozzles 13. When another kind of liquid medicine needs to be sprayed, the controller 14 controls the second electromagnetic three-way valve 10 to connect the input end of the diaphragm pump 9 to another liquid storage tank 6, and the liquid medicine in the other liquid storage tank 6 can be transported to the high-pressure pipe 12 and sprayed by the high-pressure nozzles 13. Through the cooperation among the housing 1, the water inlet end 2, the first electromagnetic three-way valve 3, the flow meter 4, the flow regulator 5, the liquid storage tank 6, the liquid medicine storage tank 7, the metering pump 8, the diaphragm pump 9, the second electromagnetic three-way valve 10, the third electromagnetic three-way valve 11, the high-pressure pipe 12, the high-pressure nozzles 13, and the controller 14, by setting two liquid storage tanks 6 and two liquid medicine storage tanks 7 in the outdoor spraying device and precisely controlling the water supply amount and the liquid medicine amount, the two liquid storage tanks 6 can respectively dilute and mix two different liquid medicines according to the corresponding concentrations and store them in the liquid storage tanks 6. When the outdoor spraying device is used for pest control against different pests, by controlling the second electromagnetic three-way valve 10 to switch the liquid storage tank 6 connected to the diaphragm pump 9, the liquid medicine can be quickly replaced for spraying, making the liquid medicine replacement more convenient and reducing the operation interruption time.Enable the outdoor spraying equipment to more flexibly and efficiently meet diverse pest control needs. The specific models of the first electromagnetic three-way valve 3, flow meter 4, metering pump 8, diaphragm pump 9, second electromagnetic three-way valve 10, third electromagnetic three-way valve 11, and controller 14 are not limited, as long as they meet the usage requirements;

[0019] It can be understood that the number of liquid storage tanks 6 and medicine storage tanks 7 can be two or multiple. By increasing the number of solenoid valves, the pipeline system of the outdoor spraying equipment can be connected to multiple liquid storage tanks 6, so as to proportionally mix and spray multiple kinds of liquid medicines, increasing the applicable range of the outdoor spraying equipment;

[0020] Further, one end of the third electromagnetic three-way valve 11 is connected to a fourth electromagnetic three-way valve 15. The fourth electromagnetic three-way valve 15 is equidistantly connected to a return pipe 16. One end of the return pipe 16 away from the fourth electromagnetic three-way valve 15 is connected to a return regulating valve 17. The two return regulating valves 17 are respectively connected to the liquid storage tank 6. The fourth electromagnetic three-way valve 15 is electrically connected to the controller 14;

[0021] In the specific implementation process, it is particularly worth noting that through the cooperation among the liquid storage tank 6, diaphragm pump 9, second electromagnetic three-way valve 10, third electromagnetic three-way valve 11, controller 14, fourth electromagnetic three-way valve 15, return pipe 16, and return regulating valve 17, when the liquid medicine in the liquid storage tank 6 is insufficient, water and liquid medicine are proportionally added to the liquid storage tank 6. After the addition of water and liquid medicine is completed, the controller 14 automatically controls the second electromagnetic three-way valve 10, third electromagnetic three-way valve 11, and fourth electromagnetic three-way valve 15, so that the return pipe 16 corresponding to the liquid storage tank 6 with newly added liquid medicine is connected to the output end of the diaphragm pump 9, and at the same time, the input end of the diaphragm pump 9 is connected to the liquid storage tank 6 with newly added liquid medicine, and the motor of the diaphragm pump 9 is started to circulate and stir the liquid medicine in the liquid storage tank 6. The stirring time can be set according to the dissolution situation of the liquid medicine, so that water and liquid medicine can be mixed more quickly. After the stirring is completed, the control system automatically closes the diaphragm pump 9 and the third electromagnetic three-way valve 11, and automatically closes the connection between the third electromagnetic three-way valve 11 and the return pipe 16, realizing the automatic mixing and stirring of water and liquid medicine, ensuring the high efficiency of liquid medicine dilution, and the whole process does not require manual intervention, saving manpower. The specific model of the fourth electromagnetic three-way valve 15 is not limited, as long as it meets the usage requirements;

[0022] Further, a first liquid level sensor 18 is installed on the top of the liquid storage tank 6, and a second liquid level sensor 19 is installed on the top of the medicine storage tank 7. Both the first liquid level sensor 18 and the second liquid level sensor 19 are electrically connected to the controller 14;

[0023] In the specific implementation process, it is particularly worth noting that through the cooperation among the liquid storage tank 6, the medicine storage tank 7, the controller 14, the first liquid level sensor 18 and the second liquid level sensor 19, the liquid levels in the liquid storage tank 6 and the medicine storage tank 7 are measured respectively by the first liquid level sensor 18 and the second liquid level sensor 19, and the measurement signals are transmitted to the controller 14 in real time, which is convenient for the control system of the spraying device to monitor the liquid levels of the liquid storage tank 6 and the medicine storage tank 7 in real time, so as to issue corresponding control instructions. The specific models of the first liquid level sensor 18 and the second liquid level sensor 19 are not limited, as long as they meet the usage requirements;

[0024] Furthermore, the controller 14 is electrically connected to a wireless signal transmission component 20, and the wireless signal transmission component 20 is used for remote control outside the device, so as to remotely control the spraying device through the controller 14;

[0025] In the specific implementation process, it is particularly worth noting that the wireless signal transmission component 20 is used for remote control outside the device, so as to remotely control the spraying device through the controller 14 and transmit the operating state of the spraying device to the network control system in real time, improving the convenience of using the spraying device. The specific model of the wireless signal transmission component 20 is not limited, as long as it meets the usage requirements;

[0026] Furthermore, the water inlet end 2 is connected to a water inlet filter 21, the output end of the water inlet filter 21 is connected to the first electromagnetic three-way valve 3, and a medicine extraction filter 22 is arranged inside the liquid storage tank 6, and the medicine extraction filter 22 is connected to the second electromagnetic three-way valve 10;

[0027] In the specific implementation process, it is particularly worth noting that through the cooperation among the water inlet end 2, the first electromagnetic three-way valve 3 and the water inlet filter 21, the water inlet filter 21 is installed between the water inlet end 2 and the first electromagnetic three-way valve 3 to filter the water inlet of the outdoor spraying device, so as to ensure that the water quality is pure and free of impurities, protect the subsequent stable operation of the device and extend its service life. Through the cooperation among the liquid storage tank 6, the second electromagnetic three-way valve 10 and the medicine extraction filter 22, the extracted liquid medicine is filtered by the medicine extraction filter 22, so that impurities, particles and possible suspended substances in the liquid medicine are effectively intercepted, ensuring the purity of the liquid medicine and avoiding nozzle blockage.

[0028] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0029] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "set", "connected", "fixed", "swiveling connection" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-purpose outdoor spray device for residential areas, comprising a housing (1), characterized in that: A first electromagnetic three-way valve (3) is arranged inside the housing (1); the input end of the first electromagnetic three-way valve (3) is connected to the water inlet end (2); the output end of the first electromagnetic three-way valve (3) is equidistantly connected to a flow meter (4); the end of the flow meter (4) away from the first electromagnetic three-way valve (3) is connected to a flow regulator (5); a liquid storage tank (6) is equidistantly arranged inside the housing (1); the flow regulator (5) is connected to the liquid storage tank (6); a medicine storage tank (7) is equidistantly arranged inside the housing (1); the bottom of the medicine storage tank (7) is connected to a metering pump (8); the output end of the metering pump (8) is connected to the liquid storage tank (6); a diaphragm pump (9) is arranged inside the housing (1); ), the input end of the diaphragm pump (9) is connected to a second electromagnetic three-way valve (10), the second electromagnetic three-way valve (10) is respectively connected to two liquid storage tanks (6), the output end of the diaphragm pump (9) is connected to a third electromagnetic three-way valve (11), one end of the third electromagnetic three-way valve (11) is connected to a high-pressure pipe (12), the end of the high-pressure pipe (12) away from the third electromagnetic three-way valve (11) is equidistantly connected to a high-pressure nozzle (13), a controller (14) is arranged inside the housing (1), and the first electromagnetic three-way valve (3), the flow meter (4), the metering pump (8), the diaphragm pump (9), the second electromagnetic three-way valve (10) and the third electromagnetic three-way valve (11) are all electrically connected to the controller (14).

2. A multi-purpose outdoor spray device for residential areas according to claim 1, characterized in that: One end of the third electromagnetic three-way valve (11) is connected to a fourth electromagnetic three-way valve (15), and the fourth electromagnetic three-way valve (15) is equidistantly connected to a reflux pipe (16), and one end of the reflux pipe (16) away from the fourth electromagnetic three-way valve (15) is connected to a reflux regulating valve (17), and the two reflux regulating valves (17) are respectively connected to the liquid storage tank (6), and the fourth electromagnetic three-way valve (15) is electrically connected to the controller (14).

3. A multi-purpose outdoor spray device for residential areas according to claim 1, characterized in that: A first liquid level sensor (18) is installed on the top of the liquid storage tank (6), and a second liquid level sensor (19) is installed on the top of the medicine storage tank (7). Both the first liquid level sensor (18) and the second liquid level sensor (19) are electrically connected to the controller (14).

4. A multi-purpose outdoor spray device for residential areas according to claim 1, characterized in that: The controller (14) is electrically connected to a wireless signal transmission component (20).

5. A multi-purpose outdoor spray device for residential areas according to claim 1, characterized in that: The water inlet end (2) is connected to a water inlet filter (21), the output end of the water inlet filter (21) is connected to a first electromagnetic three-way valve (3), a drug extraction filter (22) is arranged inside the liquid storage tank (6), and the drug extraction filter (22) is connected to a second electromagnetic three-way valve (10).

Images