Spraying device for indoor bioassay experiment

Abstract

The utility model discloses a spraying device for indoor bioassay experiment, which relates to the technical field of pesticide bioassay experiment equipment, and comprises a sprinkling can shell, the sprinkling can shell comprises an accommodating shell and a spray head shell which are connected with each other, a plurality of independent cavities for accommodating different solutions are fixedly connected in the accommodating shell, and the spray head shell is fixedly connected with the accommodating shell. A multi-way valve and a pressure pump are fixedly installed in the containing shell, the water outlet end of the multi-way valve is communicated with the water inlet end of the pressure pump, and a plurality of water inlet ends of the multi-way valve are communicated with water inlet hoses respectively. The multiple independent cavities are matched with the multi-way valve, independent storage and switching of different test solutions are achieved, cross contamination caused by frequent solution changing of a traditional device is avoided, clear water is arranged in one independent cavity for washing, residual liquid medicine is thoroughly removed, the pollution risk is further reduced, the bioassay efficiency is remarkably improved, and the bioassay efficiency is improved. Repeated dismounting is not needed, spraying personal errors are reduced, and the consistency of repeated experiments is further guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pesticide bioassay experimental equipment technical field especially, it is a kind of spray device for indoor bioassay experiment. BACKGROUND

[0002] In pesticide bioassay experiment, spray device is the core equipment of simulating the actual application effect of pesticide, and its performance directly determines the accuracy of experimental results. The traditional spray device is a simple manual press type spray pot, relies on a single container to store test solution, and needs to frequently replace different samples, resulting in the following defects:

[0003] 1. High risk of cross-contamination: residual pesticide solution is easy to contaminate subsequent samples when test solution is replaced due to incomplete cleaning, affecting the reliability of the experiment;

[0004] 2. Low efficiency: multiple sample tests require repeated disassembly, cleaning of containers and pipelines, which is time-consuming and complicated to operate, and experimental efficiency is limited;

[0005] 3. Complex operation: manual control of spray pressure, time and range is easy to introduce human error, and it is difficult to ensure the consistency of repeated experiments;

[0006] Therefore, there is an urgent need for a bioassay experiment spray device that can improve bioassay efficiency, avoid cross-contamination and reduce experimental errors. UTILITY MODEL CONTENT

[0007] The utility model aims at solving the problems in the prior art and provides a spray device for indoor bioassay experiment.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0009] A spray device for indoor bioassay experiment, comprising a spray pot shell, the spray pot shell comprises a containing shell and a spray head shell connected to each other, a plurality of independent cavities for containing different solutions are fixedly connected in the containing shell, a multi-way valve and a pressure pump are fixedly installed in the containing shell, the water outlet of the multi-way valve and the water inlet of the pressure pump are in communication with each other, a plurality of water inlet hoses are installed in communication with a plurality of water inlets of the multi-way valve, one end of a plurality of water inlet hoses away from the multi-way valve penetrates and extends into different independent cavities, a wide-angle spray head is fixedly installed at the end of the spray head shell, a liquid delivery hose is installed in communication between the water outlet of the pressure pump and the wide-angle spray head, a power switch and a control circuit board are fixedly installed on the spray head shell, and a drive battery is fixedly installed in the containing shell between a plurality of independent cavities.

[0010] Preferably, the multi-way valve comprises a valve body fixedly connected in the containing shell, a chamber is defined in the valve body, a main flow channel is arranged on the top wall of the valve body and connected with the chamber, a plurality of branch flow channels are arranged on the side wall of the valve body and connected with the chamber, a valve core is rotatably arranged in the chamber, a flow passage is formed in the valve core, the flow passage has a first flow port and a second flow port at two ends, the first flow port is arranged on the top wall of the valve core and is connected with the main flow channel, the second flow port is arranged on the side wall of the valve core and corresponds to the distribution track of the branch flow channels, a valve rod is rotatably arranged at the bottom of the valve body, one end of the valve rod is fixedly connected with the valve core, and the valve rod is used for driving the valve core to rotate the second flow port along the distribution track of the branch flow channels.

[0011] Preferably, an adjusting rod is rotatably arranged on the front side of the containing shell, a worm is fixedly connected to one end of the adjusting rod and is meshed with the worm gear.

[0012] Preferably, the positive and negative poles of the driving battery are connected in series with the power switch to form a main circuit passage, the output end of the power switch is connected to the input end of the control circuit board for controlling the on-off of the whole circuit, the output end of the control circuit board is connected to the motor driving end of the pressure pump through waterproof wires to directly control the start-stop of the pressure pump, and the control circuit board is preprogrammed or logic.

[0013] Preferably, the water inlet hose is fixedly connected with a gravity ball at one end away from the multi-way valve and extending into the independent chamber, the gravity ball is made of stainless steel and is coated with a polytetrafluoroethylene coating on the surface.

[0014] Preferably, a perfusion pipe is installed in communication on the independent chamber, and a plugging block is inserted into the containing shell outside the independent chamber.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0016] In the application, the independent storage and switching of different test solutions are realized through cooperation of the plurality of independent chambers and the multi-way valve, cross contamination caused by frequent liquid change in the traditional device is avoided, the valve core rotation of the multi-way valve realizes one-way multi-break, and the residual drug solution is completely removed by flushing with clean water configured in one of the independent chambers, the pollution risk is further reduced, the bioassay efficiency is significantly improved, the cross contamination and experimental error are reduced, repeated disassembly is not required, the manual error of spraying is reduced, the consistency of repeated experiments is further ensured, and the precision requirement of the pesticide bioassay experiment of multiple samples is met. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A perspective structural schematic view of a spraying device for indoor bioassay experiment is provided in the utility model;

[0018] Figure 2 A cross-sectional plane schematic of a spraying device for indoor bioassay experiment is provided in the utility model Figure One ;

[0019] Figure 3 A cross-sectional plane schematic of a spraying device for indoor bioassay experiment is provided in the utility model Figure Two ;

[0020] Figure 4 A spraying device for indoor bioassay experiment is provided in the utility model Figure 3 The enlarged schematic view of A in the middle

[0021] Figure 5 A partial structure schematic of a spraying device for indoor bioassay experiment is provided in the utility model.

[0022] Legend: 1, spray pot shell; 101, containing shell; 102, spray head shell; 2, independent cavity; 201, perfusion pipe; 202, plugging block; 3, multi-way valve; 301, valve body; 302, chamber; 303, main flow channel; 304, branch flow channel; 305, valve core; 306, flow passage; 307, first flow port; 308, second flow port; 309, valve rod; 4, pressure pump; 5, water inlet hose; 6, wide-angle spray head; 7, infusion hose; 8, power switch; 9, control circuit board; 10, drive battery; 11, adjusting rod; 12, worm gear; 13, worm; 14, gravity ball. DETAILED DESCRIPTION

[0023] In order to enable the above-mentioned purpose, features and advantages of the utility model to be more clearly understood, the utility model will be further described below with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description herein, therefore, the utility model is not limited to the specific embodiments disclosed in the following description.

[0025] As Figures 1-5The utility model provides a spray device for indoor bioassay experiment, including spray pot casing 1, spray pot casing 1 includes the containment casing 101 and the spray head casing 102 of mutual connection, and a plurality of independent cavities 2 for containing different solutions are fixedly connected in containment casing 101, and the water inlet of multiple pass valve 3 and the water inlet of pressure pump 4 are communicated with each other between the water outlet of multiple pass valve 3 and the water inlet of pressure pump 4, and the water inlet of multiple pass valve 3 is communicated with the water inlet hose 5 of installation respectively, and the one end of water inlet hose 5 away from multiple pass valve 3 is respectively penetrated and extends to different independent cavities 2, and the end of spray head casing 102 is fixedly installed with wide-angle shower head 6, and the water outlet of pressure pump 4 and wide-angle shower head 6 are communicated with the infusion hose 7 of installation, and power switch 8 and control circuit board 9 are fixedly installed on spray head casing 102, and drive battery 10 is fixedly installed in containment casing 101 between a plurality of independent cavities 2.

[0026] Specifically, spray pot casing 1 is composed of containment casing 101 and spray head casing 102, a plurality of independent cavities 2 are arranged in containment casing 101 to store different test solutions, pressure pump 4 switches the water inlet hose 5 of different cavities through multiple pass valve 3, and test solutions are delivered to wide-angle shower head 6 through connecting hose, independent cavities 2 are designed with multiple pass valve 3, test solutions are prevented from mixing, cross-contamination rate is reduced, and diversified requirements of laboratory are adapted.

[0027] In the embodiment, multiple pass valve 3 includes valve body 301 fixedly connected in containment casing 101, chamber 302 is defined in valve body 301, main flow channel 303 is arranged on the top wall of valve body 301 and connected with chamber 302, a plurality of branch flow channels 304 are arranged on the side wall of valve body 301 and connected with chamber 302, valve core 305 is rotatably arranged in chamber 302, flow passage 306 is arranged in valve core 305, first flow port 307 and second flow port 308 are arranged at both ends of flow passage 306, first flow port 307 is arranged on the top wall of valve core 305 and is connected with main flow channel 303, second flow port 308 is arranged on the side wall of valve core 305 and corresponds to the distribution track of a plurality of branch flow channels 304, valve stem 309 is rotatably arranged at the bottom of valve body 301, one end of valve stem 309 is fixedly connected with valve core 305, and valve stem 309 is used to drive valve core 305 to rotate second flow port 308 along the distribution track of branch flow channel 304.

[0028] Specifically, when the valve stem 309 drives the valve core 305 to rotate in the chamber 302, the second flow channel port 308 is turned to a specific required shunt passage 304, and other shunt passages 304 are closed by the peripheral wall of the valve core 305, so that one shunt passage 304 is controlled to be turned on each time, and the remaining shunt passages 304 are closed, for example, the sample is respectively injected into the No. 1, 2, 3, and 4 independent cavities 2, and the No. 5 independent cavity 2 is injected with clean water. When the first sample needs to be sprayed, the shunt passage 304 corresponding to the independent cavity 2 is opened, and the other shunt passages are in a closed state. At this time, the sample 1 is sent to the wide-angle spray head 6 for spraying. After the sample spraying is completed, the shunt passage 304 corresponding to the clean water is opened by rotating the valve core 305, and then the next sample to be tested is opened by rotating the valve core 305 again, so that the spraying operation of the next sample can be performed. The specific adjustment can be directly observed or set according to the transparent material, and the simple technical features that can be thought of are not described in detail here.

[0029] In the embodiment, the front side of the accommodating shell 101 is rotatably provided with an adjusting rod 11, a worm wheel 12 is fixedly sleeved on the valve stem 309, and one end of the adjusting rod 11 is fixedly connected with a worm 13 which is in mesh with the worm wheel 12.

[0030] Specifically, the adjusting rod 11 drives the worm wheel 12 on the valve stem 309 through the worm 13 to drive the valve core 305 to rotate. When the user rotates the adjusting rod 11, the multi-way valve 3 is switched more labor-saving and accurate. The reverse self-locking characteristics of the worm wheel 12 and the worm 13 prevent the valve core 305 from being in a wrong position due to accidental touch.

[0031] In the embodiment, the positive and negative electrodes of the driving battery 10 are connected in series with the power switch 8 through wires to form a main circuit path. The output end of the power switch 8 is connected to the input end of the control circuit board 9 for controlling the on-off of the entire circuit. The output end of the control circuit board 9 is connected to the motor driving end of the pressure pump 4 through waterproof wires to directly control the start and stop of the pressure pump 4. The control circuit board 9 has a preset program or logic.

[0032] Specifically, the driving battery 10 is connected to the power switch 8 and the control circuit board 9 through wires. The control circuit board 9 adjusts the power of the pressure pump 4 by a preset PID algorithm. After the user triggers a spraying instruction, the pressure pump 4 works stably at a preset flow rate.

[0033] In the embodiment, the end of the water inlet hose 5 away from the multi-way valve 3 and extending into the independent cavity 2 is fixedly connected with a gravity ball 14. The gravity ball 14 is made of stainless steel and has a polytetrafluoroethylene coating on the surface.

[0034] Specifically, the water inlet hose 5 is connected with the gravity ball 14, and the gravity ball 14 sinks into the bottom of the independent cavity 2 to ensure that the test solution is completely absorbed. The stainless steel material and the polytetrafluoroethylene coating are corrosion-resistant and suitable for acidic / alkaline test solutions.

[0035] In this embodiment, an injection pipe 201 is connected to the independent cavity 2. The end of the injection pipe 201 away from the independent cavity 2 extends to the outside of the housing 101 and is connected to a sealing block 202.

[0036] Specifically, the test solution is added to the independent cavity 2 through the injection tube 201, and the sealing block 202 seals the outer port of the injection tube 201 to prevent the test solution from evaporating or becoming contaminated.

[0037] How to use and how to work this device:

[0038] In use, the device first has multiple independent chambers 2, each storing different test solutions or water to prevent mixing. By rotating the valve core 305, the second flow channel 308 is aligned with the corresponding diversion channel 304 of the target independent chamber 2, opening only the current test solution path while closing the other channels. The user triggers the spray by using the power switch 8, and the control circuit board 9 automatically executes the preset program to reduce human error. The pressure pump 4 is turned on, and the test solution in the corresponding independent chamber 2 enters the connecting hose from the inlet hose 5 through the second flow channel 308 and the first flow channel 307. Under the action of 4, the solution enters the infusion tubing 7 and is sprayed out by the wide-angle nozzle 6, evenly dispersed to the 120° wide-angle fan-shaped outlet, increasing the coverage area of ​​the target and eliminating the hollow phenomenon in the middle. After the test solution is sprayed, the current diversion channel 304 is closed by rotating the valve core 305, and the next diversion channel 304 is opened. The next diversion channel 304 corresponds to the independent cavity 2 filled with clean water. The cavity is cleaned by spraying clean water. Then, the valve core 305 is rotated again to open the diversion channel 304 corresponding to the next sample to be tested, and the spraying operation of the next sample can be carried out.

[0039] Multiple independent chambers 2 store different test solutions or clean water. The test solution path can be precisely switched through a multi-way valve 3. Only one chamber is allowed to be open, while the other channels are closed to avoid mixing of test solutions and reduce the cross-contamination rate. After switching test solutions, the pipeline is flushed through the clean water chamber to thoroughly remove residual solution and further eliminate the risk of contamination. Repeated disassembly is not required, reducing human error in spraying and further ensuring the consistency of repeated experiments.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A spray device for indoor bioassay experiments, characterized in that: The system includes a spray bottle housing (1), which comprises a receiving housing (101) and a nozzle housing (102) connected to each other. Several independent cavities (2) for containing different solutions are fixedly connected inside the receiving housing (101). A multi-way valve (3) and a pressure pump (4) are fixedly installed inside the receiving housing (101). The outlet of the multi-way valve (3) and the inlet of the pressure pump (4) are interconnected. Several inlet hoses (5) are respectively connected to the inlet ends of the multi-way valve (3). The end of the inlet hose (5) away from the multi-way valve (3) passes through and extends into different independent cavities (2). A wide-angle nozzle (6) is fixedly installed at the end of the nozzle housing (102). An infusion hose (7) is installed between the outlet end of the pressure pump (4) and the wide-angle nozzle (6). A power switch (8) and a control circuit board (9) are fixedly installed on the nozzle housing (102). A drive battery (10) located between several independent cavities (2) is fixedly installed inside the housing (101).

2. The spray device for indoor bioassay experiments according to claim 1, characterized in that: The multi-way valve (3) includes a valve body (301) fixedly connected within a housing (101). The valve body (301) defines a chamber (302) inside. The valve body (301) has a main flow channel (303) on its top wall connecting to the chamber (302), and several branch flow channels (304) on its side walls connecting to the chamber (302). A valve core (305) is rotatably disposed inside the chamber (302). A flow path (306) is opened inside the valve core (305), with two ends of the flow path (306) being a first flow port (307) and... The second flow channel (308) is located on the top wall of the valve core (307) and is connected to the main flow channel (303). The second flow channel (308) is located on the side wall of the valve core (305) and corresponds to the distribution trajectory of several diversion channels (304). A valve stem (309) is rotatably provided at the bottom of the valve body (301). One end of the valve stem (309) is fixedly connected to the valve core (305). The valve stem (309) is used to drive the valve core (305) to rotate the second flow channel (308) along the distribution trajectory of the diversion channels (304).

3. A spray device for indoor bioassay experiments according to claim 2, characterized in that: An adjusting rod (11) is rotatably provided on the front side of the housing (101), a worm gear (12) is fixedly sleeved on the valve stem (309), and a worm (13) that meshes with the worm gear (12) is fixedly connected to one end of the adjusting rod (11).

4. A spray device for indoor bioassay experiments according to claim 1, characterized in that: The positive and negative terminals of the driving battery (10) are connected in series with the power switch (8) through wires to form the main circuit path. The output terminal of the power switch (8) is connected to the input terminal of the control circuit board (9) to control the on / off state of the entire circuit. The output terminal of the control circuit board (9) is connected to the motor drive terminal of the pressure pump (4) through a waterproof wire to directly regulate the start and stop of the pressure pump (4). The control circuit board (9) has a preset program or logic.

5. A spray device for indoor bioassay experiments according to claim 1, characterized in that: The end of the water inlet hose (5) that is away from the multi-way valve (3) and extends into the independent cavity (2) is fixedly connected to a gravity ball (14), which is made of stainless steel and coated with polytetrafluoroethylene.

6. A spray device for indoor bioassay experiments according to claim 1, characterized in that: An injection tube (201) is connected to the independent cavity (2). The end of the injection tube (201) away from the independent cavity (2) extends to the outside of the housing (101) and is connected to a sealing block (202).

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