Oncomelania sampling device

Abstract

The invention discloses an oncomelania sampling device which comprises a handheld device, a driving device and a control device, the handheld device comprises a first shell, a oncomelania suction head is arranged at the front end of the first shell, and a one-way blocking piece is arranged in the oncomelania suction head; the driving device comprises a negative pressure fan, and the negative pressure fan is connected to the rear end of the first shell through a ventilation pipeline; the control device comprises a battery pack. The oncomelania sampling device has the advantages that oncomelania can be picked up conveniently, and therefore oncomelania sampling is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of disease prevention and control, and in particular to a snail sampling device. Background Art

[0002] Schistosomiasis has long been a threat to humans. Schistosomiasis is a parasitic disease caused by Schistosoma japonicum parasitizing the human body. It is prevalent in 75 countries and regions in Asia, Africa, and Latin America, with a population of about 600 million threatened. The main host of schistosomiasis is Oncomelania hupensis. In the middle and lower reaches of the Yangtze River in China, the soil is rich in moisture and organic matter, and plants grow vigorously. The temperature and precipitation are very suitable for the growth of Oncomelania hupensis. With the continuous increase of China's population and the extremely fast reproduction rate of Oncomelania hupensis, the number of people infected by Oncomelania hupensis is increasing.

[0003] At present, in the process of snail survey and monitoring, the main method of picking up snails is still to pick up snails manually with tweezers. This method is not only time-consuming and labor-intensive, but also the success rate of picking up snails is affected by the site conditions, and missed detection and wrong detection often occur. In addition, most of the collectors are relatively old, and the error rate of manual picking is high and the efficiency is low. Summary of the invention

[0004] The present application provides a snail sampling device, which has the advantage of being convenient for picking up snails, thereby achieving the sampling of snails.

[0005] The above-mentioned object of the present application is achieved through the following technical solutions: a snail sampling device, comprising: The handheld device comprises a first shell, a screw suction head is provided at the front end of the first shell, and a one-way baffle is provided inside the screw suction head; A driving device, the driving device comprising a negative pressure fan, the negative pressure fan being connected to the rear end of the first shell through a ventilation duct; and a control device, the control device comprising a battery pack.

[0006] Furthermore, the first shell includes a front shell and a rear shell that are detachably connected, the space inside the front shell is set as a screw storage area, and a stainless steel mesh is provided at the front end of the rear shell.

[0007] Furthermore, a male-female connection is provided between the front shell and the rear shell, at least one L-shaped groove is provided on the female joint, and a convex block corresponding to the L-shaped groove is provided on the male joint; A locking push piece is slidably connected to the front shell, a notch is provided on the rear shell, and a magnetic piece is provided in the locking push piece and the notch. When the front shell and the rear shell are connected, the locking push piece is pushed into the notch, and the locking push piece and the magnetic piece in the notch attract each other with opposite sexes.

[0008] Furthermore, the screw suction head is conical, and the one-way blocking piece is rotatably arranged on one side of the screw suction head.

[0009] Furthermore, the handheld device is also provided with an LED lamp, and the LED lamp is connected to the rear shell through a universal hose.

[0010] Furthermore, the rear housing is provided with a first switch, and the first switch is used to control the start-up of the fan.

[0011] Furthermore, the driving device also includes a fan housing, the negative pressure fan is installed in the fan housing, the negative pressure fan is connected to a filter element and a filter cotton cover, and the negative pressure fan is connected to a connector for connecting to a ventilation duct.

[0012] Furthermore, the control device also includes an electrical control box, the battery pack is arranged in the electrical control box, and the electrical control box is also provided with a display unit, a microcontroller, a GPS positioning module, a power switch, a charging port, a battery management board and a temperature and humidity sensor. The temperature and humidity sensor is used to detect the ambient temperature and humidity and display them on the display unit, and the GPS positioning module is used to measure the longitude and latitude information and display it on the display unit.

[0013] Furthermore, the first switch is also used to output a switch signal to the microcontroller, and the microcontroller counts the switch signal output by the first switch and displays it on the display unit.

[0014] Furthermore, a second switch is provided on the rear shell, and the second switch is used to output a switch signal to the microcontroller. When the microcontroller receives the switch signal output by the second switch, it subtracts 1 from the count.

[0015] In summary, the beneficial effects of this application are: 1. This application uses negative pressure to pick up snails. During the picking process, the pickers do not need to bend over. Compared with the traditional snail sampling method, this application is more efficient and more friendly to the pickers; 2. The rear shell and the front shell of the handheld device in the present application can be quickly disassembled and assembled, which is conducive to taking out the snails after picking them up. In addition, by providing a stainless steel mesh and a one-way baffle, the snails can be gathered in the snail storage area, which is convenient for taking them out; 3. The present application can also realize the counting of snails and correct the count when sampling is missed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a snail sampling device in one embodiment of the present application; Figure 2 is a schematic diagram of a handheld device in an embodiment of the present application; Figure 3 This is a schematic diagram of a locking push piece structure in an embodiment of the present application; Figure 4This is a schematic diagram of a one-way baffle in one embodiment of the present application; Figure 5 is a schematic diagram of a driving device in an embodiment of the present application; Figure 6 It is a schematic diagram of a control device in one embodiment of the present application.

[0017] In the figure, 2. Handheld device; 3. Ventilation duct; 4. Driving device; 5. Control device; 6. LED light; 7. Screw suction head; 8. One-way baffle; 9. Locking push piece; 10. First switch; 11. Second switch; 12. Ventilation port; 13. Screw storage area; 14. Quick connector; 15. Filter cotton cover; 16. Fan housing; 17. Filter element; 18. Filter cotton cover slider; 19. Motor baffle; 20. Negative pressure fan; 21. Ink screen; 22. Battery pack; 23. Electric control box; 24: GPS module; 25. Power switch; 26. Charging port; 27. Battery management board; 28. Temperature and humidity sensor; 29. ​​Stainless steel mesh. DETAILED DESCRIPTION

[0018] The specific implementation of the present application is described in detail below with reference to the accompanying drawings.

[0019] Embodiment: A snail sampling device, such as Figure 1 As shown, it includes a handheld device, a driving device and a control device.

[0020] The handheld device comprises a first shell, a screw suction head is arranged at the front end of the first shell, the screw suction head is conical, a one-way blocking piece is arranged inside the screw suction head, and the one-way blocking piece is rotatably arranged at one side inside the screw suction head.

[0021] The first shell includes a front shell and a rear shell that are detachably connected. The space inside the front shell is set as a screw storage area. The front end of the rear shell is provided with a stainless steel mesh that can block the screws. In this embodiment, the mesh diameter of the stainless steel mesh is 1 mm.

[0022] A male-female connection is provided between the front shell and the rear shell. Specifically, a male port is provided on the rear shell, and a female port is provided on the front shell. At least one L-shaped groove is provided on the female port, and a convex block corresponding to the L-shaped groove is provided on the male port. When the front shell and the rear shell are connected, the convex block slides to the bottom along the L-shaped groove, and the convex block and the L-shaped groove play a role in positioning and fixing the front shell and the rear shell. A locking push piece is slidably connected to the front shell, and a notch is provided on the rear shell. A magnetic piece is provided in the locking push piece and the notch. When the front shell and the rear shell are connected, the locking push piece is pushed into the notch, and the locking push piece and the magnetic piece in the notch attract each other with opposite sexes, thereby locking the front shell and the rear shell.

[0023] The handheld device is also provided with an LED lamp, which is connected to the rear shell through a universal hose and is used to provide lighting.

[0024] The driving device comprises a negative pressure fan, which is connected to the rear end of the first shell through a ventilation duct. The rear end of the rear shell is provided with a vent, which is used to be connected to the ventilation duct.

[0025] The driving device also includes a fan housing, the negative pressure fan is installed in the fan housing, the negative pressure fan is connected to a filter element and a filter cotton cover to prevent dust and water vapor from accidentally entering the fan during the operation of the fan, and the negative pressure fan is connected to a PC10-02 quick connector for connecting the ventilation duct. A first switch is provided on the rear shell, and the first switch is used to control the start of the fan. In this embodiment, the first switch is a 1208YD self-locking switch, which can remain in the on state after being pressed, and switch to the off state after being pressed again.

[0026] The control device includes a battery pack. The control device also includes an electric control box, the battery pack is arranged in the electric control box, and the electric control box is also provided with a display unit, a microcontroller, a GPS positioning module, a power switch, a charging port, a battery management board and a temperature and humidity sensor, the temperature and humidity sensor is used to detect the ambient temperature and humidity and display it on the display unit, and the GPS positioning module is used to measure the longitude and latitude information and display it on the display unit.

[0027] In this embodiment, the display unit is an ink screen.

[0028] The first switch is also used to output a switch signal to the microcontroller, and the microcontroller counts and displays the switch signal output by the first switch on the display unit. A second switch is also provided on the rear housing, and the second switch is a lock-free switch, and the second switch is used to output a switch signal to the microcontroller, and the microcontroller decrements the count by 1 when receiving the switch signal output by the second switch.

[0029] A cable is provided between the handheld device and the control device for supplying power to the handheld part and transmitting signals.

[0030] In this embodiment, the control device and the driving device are fixedly connected and are arranged to be backpack-type.

[0031] During operation, the control device and the drive device are first carried on the back, and the personnel hold the handheld device and turn on the power switch. When it is necessary to pick up the snails, press the first switch, the negative pressure fan works, the wind pulls up the one-way baffle, the snails are sucked into the snail storage area, and the one-way baffle automatically rebounds to block the snail suction head to prevent the snails from leaking out. Press the first switch again, and the negative pressure fan is turned off. At this time, the count on the ink screen is increased by 1 to count the snails in the snail storage area. If the picking fails or the snails are missed, press the second switch, and the count on the ink screen is reduced by 1 to correct the count.

[0032] The above is only a preferred implementation of the present application. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present application, and these all fall within the scope of protection of the present application.

Claims

1. A snail sampling device, characterized in that: include: The handheld device comprises a first shell, a screw suction head is provided at the front end of the first shell, and a one-way baffle is provided inside the screw suction head; A driving device, the driving device comprising a negative pressure fan, the negative pressure fan being connected to the rear end of the first shell through a ventilation duct; and a control device, the control device comprising a battery pack.

2. The snail sampling device according to claim 1, characterized in that: The first shell comprises a front shell and a rear shell which are detachably connected, the space inside the front shell is set as a screw storage area, and a stainless steel mesh is provided at the front end of the rear shell.

3. The snail sampling device according to claim 2, characterized in that: A male-female connection is provided between the front shell and the rear shell, the female connection is provided with at least one L-shaped groove, and the male connection is provided with a convex block corresponding to the L-shaped groove; A locking push piece is slidably connected to the front shell, a notch is provided on the rear shell, and a magnetic piece is provided in the locking push piece and the notch. When the front shell and the rear shell are connected, the locking push piece is pushed into the notch, and the locking push piece and the magnetic piece in the notch attract each other with opposite sexes.

4. The snail sampling device according to claim 2, characterized in that: The suction screw head is conical, and the one-way blocking piece is rotatably arranged at one side of the suction screw head.

5. The snail sampling device according to claim 2, characterized in that: The handheld device is also provided with an LED lamp, which is connected to the rear shell through a universal hose.

6. The snail sampling device according to claim 2, characterized in that: The rear housing is provided with a first switch, and the first switch is used to control the start-up of the fan.

7. The snail sampling device according to claim 2, characterized in that: The driving device also includes a fan housing, the negative pressure fan is installed in the fan housing, the negative pressure fan is connected to a filter core and a filter cotton cover, and the negative pressure fan is connected to a joint for connecting to a ventilation duct.

8. The snail sampling device according to claim 2, characterized in that: The control device also includes an electrical control box, the battery pack is arranged in the electrical control box, and the electrical control box is also provided with a display unit, a microcontroller, a GPS positioning module, a power switch, a charging port, a battery management board and a temperature and humidity sensor. The temperature and humidity sensor is used to detect the ambient temperature and humidity and display them on the display unit, and the GPS positioning module is used to measure the longitude and latitude information and display them on the display unit.

9. The snail sampling device according to claim 8, characterized in that: The first switch is also used to output a switch signal to the microcontroller, and the microcontroller counts the switch signal output by the first switch and displays it on the display unit.

10. A sampling device according to claim 9, characterized in that: The rear shell is also provided with a second switch, and the second switch is used to output a switch signal to the microcontroller. When the microcontroller receives the switch signal output by the second switch, it performs a count subtraction operation.

Images