Nitrous oxide toxicity test inhalation contamination device

Abstract

The invention discloses a nitrous oxide toxicity test inhalation contamination device, and belongs to the field of biomedical gas toxicity test. Comprising a box body mechanism used for placing mice and injecting test gas, an oxygen bottle and a nitrous oxide bottle are arranged outside the box body mechanism, a gas conveying pipe is installed outside each of the oxygen bottle and the nitrous oxide bottle, a first gas valve is installed at one end of each gas conveying pipe, and a second gas valve is installed at the other end of each gas conveying pipe. One end of each first gas valve is communicated with an inner cavity of the box body mechanism, a conveying pipe is further installed outside the box body mechanism, a second gas valve is installed at the top of the conveying pipe, a draught fan is installed at one end of the conveying pipe, and a flow guide pipe is installed at the output end of the draught fan; and two third gas valves are arranged on the flow guide pipe, and the flow guide pipe is divided into three ports. The device has the advantages that gas is not prone to leakage, manual operation is not needed, the cleaning process is simple, and safety is high.

Description

Technical Field

[0001] The present invention relates to the field of biomedical gas toxicity testing, and more specifically, to a nitrous oxide toxicity testing inhalation exposure device. Background Art

[0002] Nitrous oxide has the chemical formula N2O and has a certain effect of reducing pain and achieving anesthesia. It is widely used in surgery and dentistry and has high medical value. However, nitrous oxide is also called laughing gas and is used as a substitute for drugs by drug addicts. Long-term inhalation of laughing gas can cause damage to the nervous system of the inhalers and cause various adverse reactions such as nausea and vomiting. When a patient who has inhaled laughing gas appears in a hospital, targeted treatment needs to be carried out on the patient. Because nitrous oxide has always been beneficial in the past, being inhaled as laughing gas is a negative situation. In this way, medical staff need to conduct toxicity inhalation tests on nitrous oxide. By observing the process of the toxicity test, targeted treatment can be carried out.

[0003] Based on the above technical problems, Chinese Patent with the application number 202021939752.1 discloses an automatic opening and closing experimental animal exposure chamber device, including an exposure chamber, the exposure chamber is provided with an exposure chamber cover and an exposure chamber base, the exposure chamber cover is located above the exposure chamber base, and is provided with a bracket, a guide rail, a connection mechanism, a motion mechanism and an automatic control mechanism. The exposure chamber cover and the exposure chamber base are arranged inside the bracket, the guide rail is arranged on the inner walls of both sides of the bracket, and both sides of the exposure chamber cover are connected to the guide rail through the connection mechanism and move up and down relative to the guide rail; the motion mechanism and the automatic control mechanism are arranged outside the bracket, the motion mechanism is connected to the exposure chamber cover and is used to drive the exposure chamber cover to move up and down; the automatic control mechanism controls the motion mechanism and issues instructions to make the motion mechanism drive the exposure chamber cover to move up and down.

[0004] This prior art avoids the risk of experimental personnel inhaling toxic fumes during the experiment. At the same time, by adjusting the compressed air pressure, the opening and closing actions of the exposure chamber can be achieved within 1 s and the opening and closing state can be maintained for a specified time. However, in actual use, at the end of the experiment, the treatment of harmful gases is not thorough, which is likely to cause relevant staff to inhale toxic gases, thus threatening the health of the staff. Summary of the Invention

[0005] Aiming at the problems of easy gas leakage and great potential safety hazards existing in the prior art, the purpose of the present invention is to provide a nitrous oxide toxicity testing inhalation exposure device.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A nitrous oxide toxicity test inhalation exposure device, comprising a box body mechanism for placing mice and injecting test gases. An oxygen cylinder and a nitrous oxide cylinder are arranged outside the box body mechanism. One gas transmission pipe is installed outside each of the oxygen cylinder and the nitrous oxide cylinder. One end of each of the two gas transmission pipes is equipped with a first gas valve, and one end of each of the two first gas valves communicates with the inner cavity of the box body mechanism. A transmission pipe is also installed outside the box body mechanism. A second gas valve is installed at the top of the transmission pipe. One end of the transmission pipe is equipped with a fan. A guide pipe is installed at the output end of the fan. Two third gas valves are arranged on the guide pipe, and the guide pipe is divided into three ports. One port of the guide pipe is directly installed on the box body mechanism. Another port of the guide pipe is installed with an exhaust gas bottle. A concentration controller for monitoring nitrous oxide inside the box body mechanism is also arranged outside the box body mechanism. A sealing assembly is installed at the port of the guide pipe located at the exhaust gas bottle;

[0008] The sealing assembly includes a support frame installed inside the guide pipe. A push rod motor is installed inside the support frame. A movable retaining motor is installed at the output end of the push rod motor. A rotatable rectangular retaining column is installed at the output end of the retaining motor. A magnet block is installed at one end of the retaining column. The magnet block magnetically connects with a sealing plug for closing the exhaust gas bottle. A rectangular groove into which the retaining column can be inserted is formed on the surface of the sealing plug.

[0009] Optionally, the box body mechanism includes a transparent first frame body. A lifting member is installed on the first frame body. A transparent second frame body that moves up and down is installed outside the lifting member. The first frame body and the second frame body are combined to form an exposure chamber. Sealing strips for preventing gas leakage are installed at the edges of both the first frame body and the second frame body.

[0010] Optionally, the lifting member includes assembly frames installed on both sides outside the first frame body. An assembly groove is formed on the surface of each of the two assembly frames. A sliding rod is installed in the inner cavity of one of the assembly grooves. A lifting rod is installed in the inner cavity of the other assembly groove through a bearing. A lifting motor for driving the lifting rod to rotate is installed inside one of the assembly frames. An assembly block for connecting the second frame body is installed at one ends of the lifting rod and the sliding rod.

[0011] Optionally, a merging ring is installed in the inner cavity of the port of the guide pipe connected to the exhaust gas bottle. A closing block is installed at one end of the retaining column, and the outer wall of the closing block is threadedly connected with the inner wall of the merging ring.

[0012] Optionally, a waste liquid collection mechanism is arranged at the bottom of the first frame body. A spraying mechanism for spraying cleaning liquid towards the inside of the first frame body and the second frame body is installed at the top of the first frame body.

[0013] Optionally, the waste liquid collection mechanism includes a storage box disposed at the bottom of the first frame body. A plurality of groups of through holes are formed in the connection surface between the storage box and the first frame body. A recovery tank is formed inside the storage box, and a waste liquid box is installed inside the recovery tank.

[0014] Optionally, a sealing ring is installed on the outer surface of the waste liquid box installed outside the recovery tank. A movable foam layer is provided inside the waste liquid box, and a sponge layer is provided on the surface of the foam layer.

[0015] Optionally, a suspension rack is installed outside the storage box. One end of the suspension rack is installed with a plastic wrap roll. A limiting wheel is installed at one end of the suspension rack on the side of the plastic wrap roll. Two sets of parallel setting shaping frames are installed on the surface of the storage box at the bottom of the suspension rack. An isolation rack is movably installed inside the two sets of shaping frames. A toggle rod is installed at the top of the isolation rack, and a rack for clamping the plastic wrap roll is installed on the surface of the isolation rack.

[0016] Optionally, the spraying mechanism includes a water storage tank containing a cleaning liquid installed on the top of the second frame body. A pump body is installed outside the water storage tank. The output end of the pump body is installed with an output pipe inserted into the second frame body, and an atomizing nozzle is installed at one end of the output pipe.

[0017] Optionally, spray openings are formed at the top, around and bottom of the atomizing nozzle.

[0018] The technical solution provided by the present invention has at least the following beneficial effects compared with the prior art:

[0019] In the above solution, through the setting of the fan, the air flow inside the box body mechanism can simulate the real gas flow environment, so as to provide better simulation experiment data.

[0020] By using the sealing component, the relevant ports of the waste gas bottle and the diversion pipe can be synchronously and automatically sealed, avoiding the leakage of toxic gases between the two, and having high safety.

[0021] Through the setting of the box body mechanism, it has the functions of convenient cleaning and automatic opening and closing, avoiding the need to approach the box body mechanism manually and inhaling harmful gases immediately after opening.

[0022] Through the spraying mechanism, the treatment of nitrous oxide can be better carried out by using the incorporation of liquid and nitrous oxide.

[0023] Through the waste liquid collection mechanism, the liquid sprayed inside the box body mechanism can be centrally collected, and at the same time, with the cooperation of the plastic wrap roll, the leakage caused by shaking when taking out the liquid is avoided.

[0024] The air circulation in the box mechanism by the fan also speeds up the flow and drying rate of the liquid inside the box mechanism, improving the operation of the entire device and the subsequent cleaning efficiency. Brief Description of the Drawings

[0025] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0026] Figure 1 Schematic diagram of the overall structure of the present invention;

[0027] Figure 2 Schematic diagram of the structure of the closing component of the present invention;

[0028] Figure 3 Schematic diagram of the structure of the lifting member of the present invention;

[0029] Figure 4 Schematic diagram of the structure of the waste liquid collection mechanism of the present invention;

[0030] Figure 5 Schematic diagram of the position of the plastic wrap roll of the present invention;

[0031] Figure 6 Schematic diagram of the structure of the spraying mechanism of the present invention.

[0032] [Reference Numerals]

[0033] 1. Box mechanism; 101. First frame; 102. Lifting member; 1021. Assembly frame; 1022. Assembly groove; 1023. Sliding rod; 1024. Lifting rod; 1025. Lifting motor; 1026. Assembly block; 103. Second frame; 104. Sealing strip;

[0034] 2. Oxygen cylinder; 3. Nitrous oxide cylinder; 4. Gas transmission pipe; 5. First gas valve; 6. Transmission pipe; 8. Second gas valve; 9. Fan; 10. Diversion pipe; 11. Third gas valve; 12. Exhaust gas cylinder; 13. Concentration controller; 14. Limiting wheel;

[0035] 15. Closing component; 151. Support frame; 152. Push rod motor; 153. Retaining motor; 154. Retaining column; 155. Magnet block; 156. Sealing plug; 157. Rectangular groove;

[0036] 16. Merging ring; 17. Closing block;

[0037] 18. Waste liquid collection mechanism; 1801. Storage box; 1802. Through hole; 1803. Recovery groove; 1804. Waste liquid box;

[0038] 19. Spraying mechanism; 1901. Water storage tank; 1902. Pump body; 1903. Output pipe; 1904. Atomizing nozzle

[0039] 20. Foam layer; 21. Sponge layer; 22. Hanging rack; 23. Plastic wrap roll; 24. Shaping frame; 25. Isolation rack; 26. Poking rod; 27. Rack; 28. Sealing ring

[0040] As shown in the figure, in order to clearly show the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs Detailed implementation manners

[0041] The following describes in detail a nitrous oxide toxicity test inhalation exposure device provided by the present invention with reference to the accompanying drawings and specific embodiments. It should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention

[0042] It should be pointed out that in the specification, terms such as "one embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. indicate that the described embodiments may include specific features, structures or characteristics, but not every embodiment necessarily includes such specific features, structures or characteristics. Additionally, when combining embodiments to describe specific features, structures or characteristics, implementing such features, structures or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art

[0043] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending on the context, the term "one or more" used herein can be used to describe any feature, structure or characteristic in a singular sense, or can be used to describe a combination of features, structures or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, can allow for the existence of other factors that may not be explicitly described

[0044] It will be understood that the meanings of "on", "above" and "over" in the present invention should be construed in the broadest manner such that "on" not only means "directly on" something but also includes the meaning of being on something with intervening features or layers therebetween, and "above" or "over" not only means "above" or "over" something, but may also include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0045] In addition, spatial relative terms such as "beneath", "below", "lower", "above", "upper", etc. may be used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device may be oriented in other ways, and the spatial relative descriptors used herein may be interpreted accordingly.

[0046] As Figure 1 and Figure 6 shown, an inhalant intoxication device for nitrous oxide toxicity testing according to an embodiment of the present invention includes a box body mechanism 1 for placing rats and injecting test gases. An oxygen cylinder 2 and a nitrous oxide cylinder 3 are provided outside the box body mechanism 1. A gas transmission pipe 4 is respectively installed outside the oxygen cylinder 2 and the nitrous oxide cylinder 3. A first gas valve 5 is installed at one end of each of the two gas transmission pipes 4. One end of each of the two first gas valves 5 communicates with the inner cavity of the box body mechanism 1. A transmission pipe 6 is further installed outside the box body mechanism 1. A second gas valve 8 is installed at the top of the transmission pipe 6. A blower 9 is installed at one end of the transmission pipe 6. A flow guide pipe 10 is installed at the output end of the blower 9. Two third gas valves 11 are provided on the flow guide pipe 10. The flow guide pipe 10 is divided into three ports. One port of the flow guide pipe 10 is directly installed on the box body mechanism 1. Another port of the flow guide pipe 10 is installed with an exhaust gas cylinder 12. A concentration controller 13 for monitoring nitrous oxide inside the box body mechanism 1 is further provided outside the box body mechanism 1. A sealing assembly 15 is installed at the port of the flow guide pipe 10 located at the exhaust gas cylinder 12;

[0047] Open the box body mechanism 1, then put the rats into the inside of the box body mechanism 1, and then open the first gas valves 5 on the two gas transmission pipes 4 connected to the oxygen cylinder 2 and the nitrous oxide cylinder 3 as needed. At this time, oxygen and nitrous oxide can be injected into the inside of the box body mechanism 1, so as to start the inhalation toxicity test on the rats, and the concentration controller 13 is used to monitor the nitrous oxide inside the box body mechanism 1. When the content meets the requirements, the first gas valves 5 can be closed to stop the input of oxygen and nitrous oxide.

[0048] To simulate the real environment, open the second gas valve 8 on the transfer pipe 6, and then start the fan 9. The fan 9 will absorb gas through the transfer pipe 6, and the transfer pipe 6 will extract the gas inside the box mechanism 1. At this time, synchronously open the third gas valve 11 connecting the box mechanism 1 on the diversion pipe 10, and then the gas can circulate, more realistically simulating the experimental environment.

[0049] After the experiment is over, the third gas valve 11 at one end of the diversion pipe 10 connected to the corresponding waste gas bottle 12 can be opened. At this time, another third gas valve 11 needs to be closed synchronously, so that the gas can be pumped into the interior of the waste gas bottle 12 through the fan 9.

[0050] The closing assembly 15 includes a support frame 151 installed inside the diversion pipe 10. A push rod motor 152 is installed inside the support frame 151. The output end of the push rod motor 152 is installed with a movable positioning motor 153. The output end of the positioning motor 153 is installed with a rotatable rectangular positioning column 154. One end of the positioning column 154 is installed with a magnet block 155. The magnet block 155 magnetically connects with a sealing plug 156 for closing the waste gas bottle 12. A rectangular groove 157 into which the positioning column 154 can be inserted is formed on the surface of the sealing plug 156.

[0051] A merging ring 16 is installed in the inner cavity of the port where the diversion pipe 10 is connected to the waste gas bottle 12. One end of the positioning column 154 is installed with a closing block 17, and the outer wall of the closing block 17 is threadedly connected with the inner wall of the merging ring 16.

[0052] When the waste gas bottle 12 needs to be removed, in order to avoid gas leakage, the push rod motor 152 on the support frame 151 can be powered on and started. The push rod motor 152 will synchronously drive the positioning motor 153 to adjust the length. When the sealing plug 156 at one end of the magnet block 155 is inserted into the opening of the waste gas bottle 12, the positioning motor 153 is synchronously started. At this time, the positioning motor 153 will drive the positioning column 154 to rotate. At this time, the sealing plug 156 synchronously adsorbed by the magnet block 155 is inserted into the waste gas bottle 12 for threaded connection, so as to realize the automatic closing of the waste gas bottle 12.

[0053] When the positioning column 154 rotates, it will synchronously drive the closing block 17 to be threadedly connected with the merging ring 16, and then the diversion pipe 10 can be closed, and further the gas leakage of the diversion pipe 10 and the waste gas bottle 12 can be synchronously avoided, and the overall safety is good.

[0054] Such as Figure 1 and Figure 3As shown, the box body mechanism 1 includes a transparent first frame 101. A lifting member 102 is installed on the first frame 101. A transparent second frame 103 that moves up and down is installed outside the lifting member 102. The first frame 101 and the second frame 103 are combined to form a gas poisoning box. Sealing strips 104 for preventing gas leakage are installed at the edges of the first frame 101 and the second frame 103.

[0055] The lifting member 102 includes assembly frames 1021 installed on both sides outside the first frame 101. An assembly groove 1022 is formed on the surface of each of the two assembly frames 1021. A sliding rod 1023 is installed in the inner cavity of one of the assembly grooves 1022. A lifting rod 1024 is installed in the inner cavity of the other assembly groove 1022 through a bearing. A lifting motor 1025 for driving the lifting rod 1024 to rotate is installed inside one of the assembly frames 1021. The lifting motor 1025 is an asynchronous motor and can rotate clockwise and counterclockwise. An assembly block 1026 connecting the second frame 103 is installed at one ends of the lifting rod 1024 and the sliding rod 1023.

[0056] When the lifting motor 1025 inside the lifting member 102 is started to rotate clockwise, the lifting motor 1025 will drive the lifting rod 1024 to rotate at this time. The lifting rod 1024 and the sliding rod 1023 will cooperate with the assembly block 1026 to move downward. In this way, the second frame 103 can be synchronously driven to move downward by the assembly block 1026. At this time, the combination of the first frame 101 and the second frame 103 can be realized, and then the combination of the first frame 101 and the second frame 103 can be realized, so as to cooperate with the sealing strip 104 to form a sealed space.

[0057] On the contrary, starting the lifting motor 1025 can drive the lifting rod 1024 counterclockwise. At this time, the lifting rod 1024 can cooperate with the sliding rod 1023 to drive the second frame 103 to move upward through the assembly block 1026, and then the automatic separation of the first frame 101 and the second frame 103 is realized.

[0058] In summary, the box body mechanism 1 can be automatically opened and closed, which can avoid the unstable installation caused by manual opening and closing. And when manually opening, the staff is close to the box body mechanism 1, resulting in the phenomenon of inhaling nitrous oxide poisoning. The overall safety is high.

[0059] As Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 As shown, a waste liquid collection mechanism 18 is arranged at the bottom of the first frame 101. The waste liquid collection mechanism 18 can collect the internal liquid of the box body mechanism 1. In this way, the liquid mixed with nitrous oxide will be concentrated, reducing the situation of nitrous oxide leakage.

[0060] A spraying mechanism 19 for spraying cleaning liquid towards the inside of the first housing 101 and the second housing 103 is installed on the top of the first housing 101. The spraying mechanism 19 can spray liquid inside the housing mechanism 1, so that nitrous oxide can be dissolved in the liquid to achieve convenient collection work.

[0061] According to existing technologies, nitrous oxide is a soluble gas and can thus dissolve in liquids.

[0062] The spraying mechanism 19 includes a water storage tank 1901 filled with cleaning liquid installed on the top of the second housing 103. A pump body 1902 is installed outside the water storage tank 1901. The output end of the pump body 1902 is installed with an output pipe 1903 inserted into the second housing 103, and one end of the output pipe 1903 is installed with an atomizing nozzle 1904.

[0063] The atomizing nozzle 1904 is provided with spray openings at the top, around and at the bottom.

[0064] When an appropriate amount of cleaning liquid is injected into the water storage tank 1901 and the inside of the housing mechanism 1 needs to be cleaned, the pump body 1902 is started. At this time, the pump body 1902 will pump the cleaning liquid inside the water storage tank 1901 into the output pipe 1903, and then the cleaning liquid is atomized and sprayed inside the housing mechanism 1 through the atomizing nozzle 1904. In this way, the atomized liquid can better mix with nitrous oxide, and the spray openings of the atomizing nozzle 1904 have a wide distribution angle and a comprehensive spraying range, thus avoiding the phenomenon of incomplete spraying of the atomized liquid inside the housing mechanism 1 and improving the cleaning effect of nitrous oxide.

[0065] The cleaning liquid filled in the water storage tank 1901 can also absorb heat, thereby reducing the influence of high temperature interference on nitrous oxide inside the housing mechanism 1.

[0066] The waste liquid collection mechanism 18 includes a storage box 1801 provided at the bottom of the first housing 101. A number of groups of through holes 1802 are provided on the connection surface between the storage box 1801 and the first housing 101. A recovery tank 1803 is provided inside the storage box 1801, and a waste liquid box 1804 is installed inside the recovery tank 1803.

[0067] After the liquid is sprayed inside the housing mechanism 1, the sprayed liquid will flow to the bottom of the first housing 101 under the influence of gravity. Subsequently, the liquid drops into the waste liquid box 1804 inside the recovery tank 1803 through the through holes 1802, thus realizing the collection of the liquid.

[0068] The waste liquid box 1804 is installed on the outer surface of the recovery tank 1803, and a sealing ring 28 is installed. Inside the waste liquid box 1804, a movable foam layer 20 is provided, and a sponge layer 21 is provided on the surface of the foam layer 20.

[0069] The liquid dripping into the waste liquid box 1804 will drip onto the sponge layer 21. The sponge layer 21 can reduce the splashing and dripping noise of the dripping liquid. And as the liquid inside the waste liquid box 1804 increases, the foam layer 20 will also float. The setting of the foam layer 20 can slow down the liquid sloshing after the waste liquid box 1804 is taken out of the recovery tank 1803. And the waste liquid box 1804 can also scrape the liquid at the top of the inner cavity of the recovery tank 1803 through the sealing ring 28, improving the liquid collection effect. And the setting of the sealing ring 28 also realizes the stable connection between the recovery tank 1803 and the waste liquid box 1804, realizing the stable installation of the waste liquid box 1804 inside the storage box 1801.

[0070] A suspension rack 22 is installed outside the storage box 1801. One end of the suspension rack 22 is installed with a plastic wrap roll 23. A limit wheel 14 is installed at one end of the suspension rack 22 on the side of the plastic wrap roll 23. The limit wheel 14 is threadedly connected to one end of the suspension rack 22. When the limit wheel 14 is rotated clockwise, the limit wheel 14 can be separated from the suspension rack 22, and vice versa, the installation of the limit wheel 14 and the suspension rack 22 can be realized, so that the convenient threading of the plastic wrap roll 23 can be realized.

[0071] Two sets of juxtaposed shaping frames 24 are installed on the surface of the storage box 1801 at the bottom of the suspension rack 22. An isolation rack 25 is movably installed inside the two sets of shaping frames 24. A toggle rod 26 is installed at the top of the isolation rack 25. A rack 27 for clamping the plastic wrap roll 23 is installed on the surface of the isolation rack 25. First, one side of the plastic wrap roll 23 is pulled to the rack 27 on the isolation rack 25 for position limitation. Then, the isolation rack 25 on the shaping frame 24 is pressed through the toggle rod 26, so that the isolation rack 25 is inserted between the storage box 1801 and the waste liquid box 1804. In this way, when the waste liquid box 1804 is taken out of the recovery tank 1803 inside the storage box 1801, the waste liquid box 1804 can be more conveniently taken out by using the separation gap between the waste liquid box 1804 and the storage box 1801 separated by the isolation rack 25. When the waste liquid box 1804 is taken out, the waste liquid box 1804 will be covered by the plastic wrap roll 23, so that the waste liquid box 1804 can be sealed by the plastic wrap roll 23 while the waste liquid box 1804 is taken out, effectively preventing liquid leakage.

[0072] The start of the fan 9 will realize the gas circulation inside the box body mechanism 1 through the cooperation of the transmission pipe 6 and the diversion pipe 10, so that the flow rate and drying rate of the liquid inside the box body mechanism 1 can be accelerated.

[0073] The working process provided by the present invention is as follows:

[0074] When recovering waste gas, the closing assembly 15 can be opened. The closing assembly 15 can automatically close the waste gas bottle 12, so that there is no need to manually close the waste gas bottle 12, which has good operation convenience. Moreover, the cooperation between the merging ring 16 and the closing block 17 can be used to close the waste gas outlet of the diversion pipe 10 after the waste gas is discharged, more effectively avoiding waste gas leakage and having high overall safety.

[0075] Through the setting of the box body mechanism 1, automatic opening and closing can be realized, thus avoiding the situation that manual operation requires getting close to harmful gas inhalation. Moreover, the opening and closing of the box body mechanism 1 are separated up and down, and the opening area is large, so it will be more convenient during the cleaning process.

[0076] The setting of the spraying mechanism 19 enables nitrous oxide inside the box body mechanism 1 to dissolve in the liquid, thus realizing the convenient treatment of nitrous oxide.

[0077] The waste liquid collection mechanism 18 can collect the liquid that has absorbed nitrous oxide.

[0078] The setting of the sponge layer 21 can reduce the noise of the dripping liquid. At the same time, the waste liquid collection mechanism 18 can be conveniently closed by using the plastic wrap roll 23, preventing liquid leakage when the waste liquid box 1804 in the waste liquid collection mechanism 18 is pulled out.

[0079] The air flow circulation formed with the cooperation of the fan 9 can accelerate the liquid flow rate and drying rate inside the box body mechanism 1.

[0080] The present invention covers any substitutions, modifications, equivalent methods and solutions made within the essence and scope of the present invention. In order to enable the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention without these detailed descriptions. In addition, well-known methods, processes, procedures, components and circuits are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0081] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in the technical field, several improvements and refinements can be made without departing from the principle of the present invention, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A nitrous oxide toxicity test inhalation poisoning device, characterized in that: It comprises a box body mechanism for placing mice and injecting test gas, wherein an oxygen cylinder and a nitrous oxide cylinder are arranged outside the box body mechanism, and a gas delivery pipe is respectively installed outside the oxygen cylinder and the nitrous oxide cylinder, and a first gas valve is installed at one end of each of the two gas delivery pipes, and one end of each of the two first gas valves is connected with the inner cavity of the box body mechanism, and a transmission pipe is also installed outside the box body mechanism, and a second gas valve is installed on the top of the transmission pipe, and a fan is installed at one end of the transmission pipe, and a guide pipe is installed at the output end of the fan, and two third gas valves are arranged on the guide pipe, and the guide pipe is divided into three ports, one port of the guide pipe is directly installed on the box body mechanism, and a waste gas bottle is installed at the other port of the guide pipe, and a concentration controller for monitoring the nitrous oxide inside the box body mechanism is also arranged outside the box body mechanism, and a sealing component is installed at the port of the guide pipe located at the waste gas bottle; The sealing component includes a support frame installed inside the guide tube, a push rod motor is installed inside the support frame, a movable fixing motor is installed at the output end of the push rod motor, a rotatable rectangular fixing column is installed at the output end of the fixing motor, a magnet block is installed at one end of the fixing column, the magnet block is magnetically connected to a sealing plug that closes the waste gas bottle, and a rectangular groove is opened on the surface of the sealing plug to insert the fixing column.

2. The nitrous oxide toxicity test inhalation poisoning device according to claim 1, characterized in that: The box mechanism includes a transparent first frame, a lifting member is installed on the first frame, a transparent second frame that moves up and down is installed outside the lifting member, and the first frame and the second frame are combined to form a poison control box, and sealing strips for preventing gas leakage are installed at the edges of the first frame and the second frame.

3. The nitrous oxide toxicity test inhalation poisoning device according to claim 2, characterized in that: The lifting member includes assembly frames installed on both sides of the outside of the first frame body, and the surfaces of the two assembly frames are each provided with an assembly groove, a sliding rod is installed in the inner cavity of one of the assembly grooves, and a lifting rod is installed in the inner cavity of the other assembly groove through a bearing, a lifting motor is installed inside one of the assembly frames to drive the lifting rod to rotate, and an assembly block connected to the second frame body is installed at one end of the lifting rod and the sliding rod.

4. The nitrous oxide toxicity test inhalation poisoning device according to claim 1, characterized in that: The inner cavity of the port of the guide tube connected to the waste gas bottle is installed with a merging ring, one end of the retaining column is installed with a closing block, and the outer wall of the closing block is threadedly connected to the inner wall of the merging ring.

5. The nitrous oxide toxicity test inhalation poisoning device according to claim 3, characterized in that: A waste liquid collecting mechanism is arranged at the bottom of the first frame body, and a spraying mechanism for spraying cleaning liquid toward the inside of the first frame body and the second frame body is installed at the top of the first frame body.

6. The nitrous oxide toxicity test inhalation poisoning device according to claim 5, characterized in that: The waste liquid collection mechanism comprises a storage box arranged at the bottom of the first frame body, a connection surface between the storage box and the first frame body is provided with a plurality of through holes, a recovery groove is provided inside the storage box, and a waste liquid box is installed inside the recovery groove.

7. The nitrous oxide toxicity test inhalation poisoning device according to claim 6, characterized in that: A sealing ring is installed on the surface of the waste liquid box installed outside the recovery tank, a movable foam layer is arranged inside the waste liquid box, and a sponge layer is arranged on the surface of the foam layer.

8. The nitrous oxide toxicity test inhalation poisoning device according to claim 6, characterized in that: A hanging rack is installed on the outside of the storage box, a cling film roll is installed on one end of the hanging rack, a limiting wheel is installed on one end of the hanging rack located on the side of the cling film roll, two groups of parallel shaping frames are installed on the surface of the storage box located on the bottom of the hanging rack, isolation racks are movably installed inside the two groups of shaping frames, a toggle rod is installed on the top of the isolation rack, and a rack for clamping the cling film roll is installed on the surface of the isolation rack.

9. The nitrous oxide toxicity test inhalation poisoning device according to claim 5, characterized in that: The spraying mechanism comprises a water tank filled with cleaning liquid installed on the top of the second frame, a pump body is installed outside the water tank, an output pipe inserted into the second frame is installed at the output end of the pump body, and an atomizing nozzle is installed at one end of the output pipe.

10. The nitrous oxide toxicity test inhalation poisoning device according to claim 9, characterized in that: The top, surroundings and bottom of the atomizing nozzle are all provided with nozzles.

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