Animal gas contamination exposure device
By introducing one-way intake valves, one-way outlet valves and poison gas generators into animal gas pollution equipment, the problem of easy suffocation when put into animals is solved, the accuracy and safety of the experiment are improved, and Reduced environmental pollution.
Patent Information
- Application Number
- CN202420496801.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-03-14
AI Technical Summary
Existing animal gas pollution equipment can easily cause suffocation when placed in animals, resulting in poor experimental accuracy and it is difficult to distinguish the threat of toxic gases to animal health from the threat of suffocation.
An animal gas pollution exposure device was designed, using a one-way intake valve and one-way outlet valve to provide oxygen to experimental animals to prevent suffocation, and the toxic gas is heated and evaporated through the poison gas generation device, and evenly distributed in the poisonous chamber. In the body, avoid the interaction between gases and gas exhaled by animals.
The accuracy of the experiment is improved, ensuring that the impact of toxic gases on animals is evaluated separately from the risk of suffocation, enhancing the reliability of the experiment, and at the same time, toxic gases are absorbed through the exhaust gas treatment box to avoid environmental pollution.
Smart Images
Figure CN222487725U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of animal exposure and poisoning equipment, in particular to an animal gas poisoning exposure device. Background Art
[0002] Exposure is a common animal gas exposure experimental technique, which is often used to establish animal exposure models in environmental protection, toxicology and other research. Due to various factors, toxic gases accumulate in the environment, and when they reach a certain concentration, they will pose a threat to human health. Therefore, it is very necessary to conduct simulation experiments to explore the poisoning mechanism of toxic gases on living bodies and verify the effectiveness of treatment plans.
[0003] Currently commonly used animal gas poisoning equipment such as Figure 1 As shown, it includes a poison box a for placing animals, and a box cover b for covering the poison box, the box cover is provided with an air inlet, and the poison box is connected to an atomizer c through an air inlet pipe, and the atomizer passes toxic gas into the poison box to perform an exposure experiment on the animals. However, the poison box is completely sealed, and there is an event of suffocation when the animals are placed, so it is impossible to accurately determine whether the threat to the health of the animals is caused by the toxic gas or the threat caused by suffocation, so the accuracy of the experiment is poor. Utility Model Content
[0004] The utility model aims to provide an animal gas poisoning exposure device which can improve the accuracy of experiments.
[0005] The animal gas poisoning exposure device described in the utility model comprises a poisoning box for placing animals, a one-way air inlet valve for introducing external gas into the poisoning box is arranged on the poisoning box, and a one-way air outlet valve for discharging the internal gas of the poisoning box is arranged on the other side of the poisoning box opposite to the one-way air inlet valve, and the one-way air outlet valve is connected to the exhaust gas treatment box; a poisoning gas generating device is arranged on one side of the poisoning box, and the poisoning gas generating device is connected to the inside of the poisoning box through an air inlet pipeline and a one-way air inlet valve for poisoning gas, and the poisoning gas generating device comprises a gas volatilization bottle filled with poisoning gas, and a heating device for heating the gas volatilization bottle.
[0006] The animal gas poisoning exposure device described in the utility model can provide oxygen to the experimental animals through the one-way air inlet valve and the one-way air outlet valve after the experimental animals are placed in the poisoning box, so as to prevent the experimental animals from suffocating in the poisoning box, and then heat the gas volatilization bottle through the heating device of the poisoning gas generating device, and let the poisoning gas enter the poisoning box through the air inlet pipeline and the one-way air inlet valve of the poisoning gas to carry out the exposure experiment on the experimental animals, thereby improving the accuracy of the experiment; in addition, under the action of the heating device, the volatilization of the liquid in the gas volatilization bottle is accelerated, and under the action of the exhaust of the one-way air outlet valve, the gas in the poisoning box is made more uniform, so as to avoid the interaction between the gas exhaled by the animal and the poisoning gas, so as to avoid the increase of mucus in the mouth and nose exposure area of the animal, thereby causing suffocation, and further improve the accuracy of the experiment; in addition, the exhaust gas treatment box can absorb toxic gases, so as to avoid the pollution of the surrounding environment by the exhaust gas discharge and leakage of conventional poisoning rooms.
[0007] As a preferred solution of the utility model, an excrement collection frame is arranged at the bottom of the poisoning box, and a metal mesh is arranged between the excrement collection frame and the bottom of the poisoning box to allow animal excrement to fall into the excrement collection frame.
[0008] As a preferred solution of the utility model, the excrement collection frame is a pull-out excrement collection frame that is inserted into the bottom of the contamination box.
[0009] As a preferred solution of the utility model, a one-way air inlet valve regulating fan and a one-way air outlet valve regulating fan are respectively arranged on the one-way air inlet valve and the one-way air outlet valve.
[0010] As a preferred solution of the utility model, a blower for regulating a one-way air intake valve of the poisonous gas is arranged on the end of the air intake pipeline connected to the poisonous gas generating device.
[0011] As a preferred solution of the utility model, a gas sensor for monitoring the gas pressure and concentration inside the poisoning box is installed on the poisoning box.
[0012] As a preferred solution of the utility model, a temperature and humidity sensor for monitoring the temperature and humidity inside the poisoning box is installed on the poisoning box.
[0013] As a preferred solution of the utility model, a display screen electrically connected to the gas sensor and the temperature and humidity sensor for displaying gas pressure, concentration, temperature and humidity is provided on the contamination box or the tail gas treatment box.
[0014] As a preferred solution of the utility model, the poisoning box is provided with multiple poisoning chambers, each of which is separated by a detachable partition, each of which is provided with a one-way air inlet valve, a one-way air outlet valve and a poison gas one-way air inlet valve, and is connected to a separate gas volatilization bottle inside the poison gas generating device through a separate air inlet pipeline.
[0015] As a preferred solution of the utility model, slots for inserting the two sides of the partition are arranged on the two side walls of the poisoning chamber, and sealing strips are arranged in the slots. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of currently commonly used animal gas poisoning equipment;
[0017] Figure 2 This is a schematic diagram of the structure of the animal gas poisoning exposure device of the utility model;
[0018] Figure 3 This is a structural schematic diagram of another side of the animal gas poisoning exposure device of the utility model;
[0019] Figure 4 This is a schematic diagram of the internal structure of the poison box;
[0020] Figure 5 for Figure 2 Schematic diagram of the internal structure of Part A;
[0021] Figure 6 is a schematic diagram of the interior of the exhaust gas treatment box;
[0022] Figure 7 This is the internal right view of the poison box. DETAILED DESCRIPTION
[0023] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] In the present utility model, it needs to be explained that if there are directional indications involved in the embodiments of the present utility model (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0025] An animal gas exposure device, such as Figure 2 - Figure 7As shown, it includes a poison box 1 for placing animals, a one-way air inlet valve 2 for introducing external gas into the poison box is provided on the poison box, and a one-way air outlet valve 3 for discharging the gas inside the poison box is provided on the other side of the poison box opposite to the one-way air inlet valve, and the one-way air outlet valve is connected to the tail gas treatment box 4; a poison gas generating device 5 is provided on one side of the poison box, and the poison gas generating device is connected to the inside of the poison box through an air inlet pipeline 6 and a one-way air inlet valve 7 for the poison gas, and the poison gas generating device includes a gas volatilization bottle 51 filled with the poison gas, and a heating device 52 for heating the gas volatilization bottle. The poison gas can be flexibly any one of formaldehyde, benzene, ammonia and other gases, and the tail gas treatment box is filled with a tail gas absorption medium, and the tail gas absorption medium can be used for absorption treatment by activated carbon, modified activated carbon, etc. After the poison gas is absorbed and treated by the tail gas absorption medium, the treated gas is discharged from the exhaust pipe 13.
[0026] When conducting a gas poisoning experiment on animals, first open the experimental animal / article entry and exit door 12 on the poisoning box to put the animal into the poisoning box, and then close the door. After the animal is loaded, oxygen can be provided to the experimental animal through the one-way air inlet valve and the one-way air outlet valve to prevent the experimental animal from suffocating in the poisoning box. Then, the gas volatilization bottle is heated by the heating device of the poisoning gas generating device, and the poisoning gas enters the poisoning box through the air inlet pipeline and the one-way air inlet valve of the poisoning gas to conduct an exposure experiment on the experimental animal. The animal gas poisoning exposure device disclosed in this embodiment is particularly suitable for acute and chronic gas poisoning experiments on animals. In addition, after the experiment, the one-way air outlet valve can extract the poisoning gas in the poisoning box cleanly to avoid unnecessary safety hazards to the experimenters.
[0027] The one-way air inlet valve 2 is arranged on the top of the poisoning box and is installed on the top of the poisoning box through a sealing ring, and includes an air inlet valve body and a one-way air inlet valve regulating fan arranged on the top of the air inlet valve body. The one-way air outlet valve 3 is arranged on the side wall connected to the tail gas treatment box 4 at the bottom of the poisoning box and is installed on the side wall at the bottom of the poisoning box through a sealing ring, and includes an air outlet valve body and a one-way air outlet valve regulating fan arranged inside the air outlet valve body. The poisoned gas one-way air inlet valve 7 includes a poisoned gas one-way air inlet valve body 71 arranged at the end connected to the inside of the poisoning box by the air inlet pipeline and the poisoned gas generating device, and a poisoned gas one-way air inlet valve regulating fan 72 at the end connected to the inside of the poisoned gas generating device, the poisoned gas one-way air inlet valve body 71 is sealed with the poisoned box and the outer wall of the air inlet pipeline respectively through a sealing ring, and the poisoned gas one-way air inlet valve regulating fan 72 is sealed with the poisoned gas generating device and the outer wall of the air inlet pipeline respectively through a sealing ring.
[0028] An excrement collection frame 8 is provided at the bottom of the gas exposure box, and a metal mesh 9 is provided between the excrement collection frame and the bottom of the gas exposure box, through which animal excrement can fall. The excrement collection frame is a pull-out excrement collection frame inserted into the bottom of the gas exposure box. The animal excrement falls into the excrement collection frame 8 through the metal mesh 9, and then the animal excrement falling into the excrement collection frame is taken out through the pull-out excrement collection frame, thereby solving the problem that the excrement of the current animal gas exposure device falls directly into the device, causing trouble for subsequent cleaning.
[0029] In this embodiment, the poisoning box is provided with three poisoning chambers, each of which is separated by a detachable partition 11, and slots for inserting the partitions are provided on both sides of the poisoning chamber walls, and sealing strips are provided in the slots to achieve the functions of detachability and sealing, and each poisoning chamber is provided with a one-way air inlet valve, a one-way air outlet valve and a one-way air inlet valve for poisoning gas, and is connected to a separate gas volatilization bottle inside the poisoning gas generating device through a separate air inlet pipeline. The poisoning box is divided into three sub-areas for animal activities by a detachable partition 11, so that it is convenient to conduct exposure experiments on multiple groups of animals at the same time in the poisoning box device as a comparative experiment, further improving the accuracy of the experiment; when the exposure group is one group or there are more groups of experimental animals, the detachable partition 11 can be removed or added, and the experimental application is flexible and convenient.
[0030] The poison box 1 is the main structure of the exposure device for this experiment. It uses transparent materials including but not limited to acrylic plates, which can provide a natural environment for experimental animals, facilitate the experimenters to observe the activities of animals in the poison room at any time, and provide guidance for the setting and modification of specific experimental parameters and related operations. When setting the size of the poison box 1, it is necessary to combine the maximum number of experimental animals and the influence of the humidity caused by the breathing of the maximum experimental animals on the overall humidity in the poison box 1. Usually, the relative humidity introduced by the animals themselves should not exceed 50%, leaving space for the exposure of the poisonous gas, and a weak negative pressure should be maintained in the poison box 1 to prevent the leakage of the poisonous gas. This embodiment uses a rectangular poison box 1, whose inner diameter is 840mm long, 500mm wide, and 600mm high (it can accommodate up to 50 adult mice and about 15-25 rats). By installing a gas sensor for monitoring the gas pressure and concentration inside the poisoning box on the poisoning box, installing a temperature and humidity sensor for monitoring the temperature and humidity inside the poisoning box on the poisoning box, and arranging a display screen 10 on the poisoning box or the exhaust gas treatment box that is electrically connected to the gas sensor and the temperature and humidity sensor to display the gas pressure, concentration, temperature and humidity, it can be ensured that the animal poisoning experiment is carried out under the optimal pressure, concentration, temperature and humidity conditions, thereby further improving the accuracy of the experiment.
[0031] The above embodiments are only used to illustrate the detailed scheme of the utility model. The utility model is not limited to the above detailed scheme, that is, it does not mean that the utility model must rely on the above detailed scheme to be implemented. Those skilled in the art should understand that any improvement to the utility model, equivalent replacement of various raw materials of the utility model product, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the utility model.
Claims
1. An animal gas poisoning exposure device, comprising a gas poisoning box (1) for placing an animal, characterized in that: A one-way air inlet valve (2) for introducing external air into the poison box is provided on the poison box, and a one-way air outlet valve (3) for discharging the internal gas of the poison box is provided on the other side of the poison box opposite to the one-way air inlet valve, and the one-way air outlet valve is connected to the tail gas treatment box (4); a poison gas generating device (5) is provided on one side of the poison box, and the poison gas generating device is connected to the inside of the poison box through an air inlet pipeline (6) and a one-way air inlet valve (7) for poison gas, and the poison gas generating device includes a gas volatilization bottle (51) filled with poison gas, and a heating device (52) for heating the gas volatilization bottle.
2. The animal gas poisoning exposure device according to claim 1, characterized in that: An excrement collection frame (8) is arranged at the bottom of the poisoning box, and a metal mesh (9) is arranged between the excrement collection frame and the bottom of the poisoning box to allow animal excrement to fall into the excrement collection frame.
3. The animal gas poisoning exposure device according to claim 2, characterized in that: The excrement collecting frame is a pull-out excrement collecting frame inserted into the bottom of the poisoning box.
4. The animal gas poisoning exposure device according to claim 1, characterized in that: The one-way air inlet valve comprises an air inlet valve body and a one-way air inlet valve regulating fan arranged on the top of the air inlet valve body; the one-way air outlet valve comprises an air outlet valve body and a one-way air outlet valve regulating fan arranged inside the air outlet valve body.
5. The animal gas poisoning exposure device according to claim 1, characterized in that: The toxic gas one-way intake valve comprises a toxic gas one-way intake valve body arranged at the end where the intake pipeline is connected to the inside of the toxic box and a toxic gas one-way intake valve regulating fan arranged at the end where the intake pipeline is connected to the inside of the toxic gas generating device.
6. The animal gas poisoning exposure device according to claim 1, characterized in that: A gas sensor for monitoring the gas pressure and concentration inside the poisoning box is installed on the poisoning box.
7. The animal gas poisoning exposure device according to claim 6, characterized in that: A temperature and humidity sensor for monitoring the temperature and humidity inside the poisoning box is installed on the poisoning box.
8. The animal gas poisoning exposure device according to claim 7, characterized in that: A display screen (10) which is electrically connected to the gas sensor and the temperature and humidity sensor and displays the gas pressure, concentration, temperature and humidity is arranged on the contamination box or the tail gas treatment box.
9. The animal gas poisoning exposure device according to any one of claims 1 to 8, characterized in that: The poison box is provided with a plurality of poison chambers, each of which is separated by a detachable partition (11), each of which is provided with a one-way air inlet valve, a one-way air outlet valve and a poison gas one-way air inlet valve, and is connected to a separate gas volatilization bottle inside the poison gas generating device through a separate air inlet pipeline.
10. The animal gas poisoning exposure device according to claim 9, characterized in that: Card slots for inserting the two sides of the partition are arranged on the two side walls of the poisoning chamber, and sealing strips are arranged in the card slots.