A feeding device for experimental animals used in flea killing experiments

Abstract

The present invention discloses a feeding device for experimental animals used in flea extermination experiments. Through the cooperation of a glove operation box, an air knife, and a transition box, the sealing performance of the feeding device is improved, and the probability of flea escape is reduced. After the compressed air passes through the top of the flea suction cylinder, suction is generated through the Bernoulli effect, which can adsorb the fleas to the bottom of the flea suction cylinder. When transferring the fleas into the sampling tube, first insert the flea suction cylinder into the extension tube and then press down. The driving mechanism can drive the plug to tightly press the outlet of the air blowing tube, so that the compressed air is blown out from the flea suction cylinder, blowing the fleas into the extension tube and then falling into the sampling tube. After collecting all the fleas on the parasitized animal into the sampling tube, the experimenter then transfers the fleas in the sampling tube to the odor attracting component. The odor attracting component can attract the movement of the fleas, separating the dead and surviving fleas, facilitating the counting of the dead and surviving fleas, and improving the accuracy of the experiment.

Description

Technical Field

[0001] The present invention relates to the technical field of experimental animal breeding devices, and specifically to a breeding device for experimental animals used in flea extermination experiments. Background Art

[0002] Fleas are small parasitic insects that are good at jumping. After fleas bite humans, they can cause local inflammation and pose a risk of spreading infectious diseases, threatening human health. It is necessary to promptly use flea extermination drugs to eliminate fleas.

[0003] In the prior art, in order to evaluate the effect of flea extermination drugs, after experimental personnel use flea extermination drugs on parasitized animals, they need to first clean up the dead and surviving fleas on the parasitized animals, and then count the dead and surviving fleas cleaned up from the parasitized animals to statistically calculate the survival rate of fleas. Existing breeding devices for experimental animals (i.e., parasitized animals) used in flea extermination experiments include cages, food trays, and water dispensers, with poor sealing performance, posing a risk of flea escape. Moreover, when counting dead and surviving fleas, due to the high difficulty, it is easy to cause large errors and reduce the experimental accuracy.

[0004] Therefore, it is necessary to design a breeding device for experimental animals used in flea extermination experiments to reduce the risk of flea escape, facilitate counting dead and surviving fleas, and improve experimental accuracy. Summary of the Invention

[0005] The purpose of the present invention is to provide a breeding device for experimental animals used in flea extermination experiments to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A breeding device for experimental animals used in flea extermination experiments, including a glove operation box. A food tray and a water dispenser are fixed inside the glove operation box. An air exchange fan is fixed on the glove operation box. An inner door that opens inward is rotatably provided on one side of the glove operation box. An air knife is fixed at the inner door of the glove operation box. The air knife is connected to an air compressor that provides compressed air through a pipeline. A transition box is fixed on the box body of the glove operation box at the outer side of the inner door. An outer door that opens outward is rotatably provided on the transition box;

[0007] A sampling box is fixed on one side of the glove operation box. The sampling box is communicated with the glove operation box. A blowing tube and a flea suction cylinder can be placed inside the glove operation box. The air compressor is connected to the inlet of the blowing tube through a pipeline. The outlet of the blowing tube leads to the outside of the blowing tube. The top of the flea suction cylinder is fixed between the inlet and the outlet of the blowing tube. A filter screen is fixed at the bottom of the flea suction cylinder. The filter screen can prevent fleas from entering. A sampling box is fixed on one side of the glove operation box. The sampling box is communicated with the glove operation box. An extension tube is fixed at the bottom of the sampling box. The bottom of the extension tube is threadedly connected to the top of the sampling tube. The flea suction cylinder can be inserted into the extension tube. The extension tube can prevent fleas from jumping out;

[0008] A plug is slidably arranged on the sampling box, and a driving mechanism is arranged on the extension pipe. When the flea suction tube is pressed down, it can drive the driving mechanism to drive the plug to tightly press the outlet of the air blowing pipe;

[0009] The air compressor pipeline is connected to the odor attracting component.

[0010] Preferably, the odor attracting component includes a drying tower. Activated carbon is arranged in the drying tower. The air compressor is first connected to the inlet of the drying tower, the outlet of the drying tower is connected to the inlet of the gas flow controller, the outlet of the gas flow controller is connected to the inlet of the water bottle, the outlet of the water bottle is connected to the inlet of the attracting box. An attracting animal for attracting fleas is placed in the attracting box. The outlet of the attracting box is connected to the inlet of the insect olfactory instrument, and the outlet of the insect olfactory instrument communicates with the atmosphere.

[0011] Preferably, one end of a sliding rod is fixed to the plug, the other end of the sliding rod is fixed to the driving slider. The sliding rod is slidably arranged on the sampling box. An inclined groove is formed in the driving slider, and a driving round pin is in contact connection in the inclined groove. The driving round pin is fixed to the upper end of the transmission rod, and the transmission rod is slidably arranged outside the sampling box.

[0012] Preferably, the driving mechanism includes a first driven tooth. A plurality of the first driven teeth are arranged to be lifted and lowered in the extension pipe. The plurality of first driven teeth are fixed to a first driven sleeve, and the first driven sleeve is sleeved outside the extension pipe. A first spring seat is fixed outside the extension pipe. A first return spring is fixed between the first spring seat and the first driven sleeve. The first return spring is sleeved on the extension pipe, and the first driven sleeve can be kept upward in the free state of the first return spring;

[0013] An input rack is fixed to the first driven sleeve. The input rack is meshed and connected with an input gear. The input gear is rotatably arranged under the sampling box. The input gear can drive a bevel gear set. The bevel gear set is installed under the sampling box. The bevel gear set can drive an output gear. The output gear is rotatably arranged under the sampling box. The output gear is meshed and connected with an output rack. The upper end of the output rack is fixed to the lower end of the transmission rod;

[0014] A driving disc is fixed to the flea suction tube, and the driving disc can contact the first driven tooth.

[0015] Preferably, the bevel gear set includes an A bevel gear. The input gear is coaxially fixed with the A bevel gear. The A bevel gear is meshed and connected with a B bevel gear. The B bevel gear is rotatably arranged under the sampling box. One end of a transmission shaft is coaxially fixed to the B bevel gear. The other end of the transmission shaft is coaxially fixed with a C bevel gear. The C bevel gear is meshed and connected with a D bevel gear. The D bevel gear is coaxially fixed on the output gear.

[0016] Preferably, a first positioning disk is fixed on the flea suction tube. A groove is formed on the first positioning disk. A plurality of ball plungers are installed in the extension tube. The ball plungers are installed at the extreme position of the first positioning disk drop. The ball plungers can clamp the first positioning disk.

[0017] Preferably, the driving mechanism includes a cage. The cage is arranged to move up and down in the extension tube. A plurality of holding holes are formed on the cage. A positioning bead is placed in each holding hole. A second positioning disk is fixed outside the flea suction tube. A V-shaped groove is formed on the second positioning disk. When the positioning bead moves towards the center of the second positioning disk, it can be caught in the V-shaped groove of the second positioning disk.

[0018] A plurality of second driven teeth are fixed under the cage. The second driven teeth are arranged to move up and down in the extension tube. The plurality of second driven teeth are fixed on a second driven sleeve. The second driven sleeve is sleeved outside the extension tube. The second driven sleeve is fixed on the active plate. A second spring seat is fixed outside the extension tube. A second return spring is fixed between the second spring seat and the active plate. The second return spring is sleeved on the extension tube. In the free state, the second return spring can keep the active plate upward. The lower end of a transmission rod is fixed on the active plate;

[0019] The position of the cage when the second return spring is in the free state is called the initial position. A relief groove is formed on the extension tube at the initial position of the cage. When the positioning bead moves away from the center of the second positioning disk, it can enter the relief groove.

[0020] Preferably, a cylinder bracket is fixed under the sampling box. One end of a locking cylinder is fixed on the cylinder bracket. The other end of the locking cylinder is fixed under the active plate. When the locking cylinder retracts, it can drive the active plate to descend;

[0021] A manual reversing valve is fixed in the glove operation box. The manual reversing valve can control the telescopic movement of the locking cylinder.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: When an experimenter transfers experimental tools into the glove operation box, first open the outer door from the outside, place the experimental tools in the transition box, then close the outer door, and then put on the gloves of the glove operation box and open the inner door from the inside, and take out the experimental tools in the transition box from the inside of the glove operation box. During the process of transferring the experimental tools, the inside of the glove operation box can be kept isolated from the outside world, and there is an air knife at the inner door. The air knife can blow out a blocking air curtain to prevent fleas from passing through. Through the cooperation of the glove operation box, the air knife and the transition box, the sealing performance of the breeding device is improved, and the probability of flea escape is reduced;

[0023] When using a flea suction tube to collect dead and live fleas cleaned from a parasitized animal in a glove operation box, place the blow tube and the flea suction tube in the glove operation box. Compressed air is blown in from the inlet of the blow tube and blown out from the outlet of the blow tube. After the compressed air passes through the top of the flea suction tube, suction is generated through the Bernoulli effect, enabling the fleas to be adsorbed to the bottom of the flea suction tube for easy collection by the experimenter.

[0024] When transferring the fleas in the flea suction tube to a sampling tube, first insert the flea suction tube into the extension tube and then press it down. When the extension tube is pressed down, it can drive the plug to tightly press the outlet of the blow tube through the driving mechanism, so that the compressed air entering from the inlet of the blow tube is blown out from the flea suction tube, blowing the fleas in the flea suction tube into the extension tube and then falling into the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Isometric view of Embodiment 1 of the present invention;

[0026] Figure 2 Isometric view of Embodiment 1 of the present invention, with the top wall and side walls of the glove operation box removed;

[0027] Figure 3 Front view of the blow tube and the flea suction tube of Embodiment 1 of the present invention;

[0028] Figure 4 Another perspective isometric view of Embodiment 1 of the present invention;

[0029] Figure 5 Isometric view of the sampling box, driving mechanism and flea suction tube of Embodiment 1 of the present invention, with the flea suction tube inserted into the extension tube;

[0030] Figure 6 Schematic diagram of the odor attracting component of the present invention;

[0031] Figure 7 Partial cross-sectional view in the main viewing direction of the sampling box, driving mechanism and flea suction tube of Embodiment 1 of the present invention, with the driving mechanism and the extension tube in a cut-away state and the flea suction tube not inserted into the extension tube;

[0032] Figure 8 For the present invention Figure 7 Partial enlarged view of A;

[0033] Figure 9 Cross-sectional view in the main viewing direction of the sampling box, driving mechanism and flea suction tube of Embodiment 1 of the present invention, with the driving mechanism and the extension tube in a cut-away state and the flea suction tube inserted into the extension tube and locked;

[0034] Figure 10 For the present invention Figure 9 Partial enlarged view of B;

[0035] Figure 11 Isometric view of the sampling box of Embodiment 1 of the present invention, with its top wall and side walls removed;

[0036] Figure 12 Of the present invention Figure 9 Partial enlarged view at C;

[0037] Figure 13 Of the present invention Figure 5 Partial enlarged view at D;

[0038] Figure 14 Of the present invention Figure 5 Partial enlarged view at E;

[0039] Figure 15 Of the present invention Figure 11 Partial enlarged view at F;

[0040] Figure 16 Front view of the blow tube and flea suction tube of Embodiment 2 of the present invention;

[0041] Figure 17 Isometric view of the sampling box of Embodiment 2 of the present invention, with its top wall and side walls removed;

[0042] Figure 18 Partial sectional view in the main view direction of the sampling box, driving mechanism and flea suction tube of Embodiment 2 of the present invention, with the driving mechanism and extension tube in a cut-away state and the flea suction tube inserted into the extension tube;

[0043] Figure 19 Of the present invention Figure 18 Partial enlarged view at G;

[0044] Figure 20 Partial sectional view in the main view direction of the sampling box, driving mechanism and flea suction tube of Embodiment 2 of the present invention, with the driving mechanism and extension tube in a cut-away state and the flea suction tube inserted into the extension tube and locked;

[0045] Figure 21 Isometric view of Embodiment 2 of the present invention, with the top wall and side walls of the glove operation box removed.

[0046] Figure 22 Of the present invention Figure 20 Partial enlarged view at H.

[0047] In the figure: 11, glove operation box; 12, food tray; 13, water dispenser; 14, ventilation fan; 15, inner door; 16, outer door; 17, transition box; 18, air knife; 21, air blowing pipe; 22, flea suction tube; 23, sampling box; 24, extension tube; 25, sampling tube; 31, drying tower; 32, gas flow controller; 33, water bottle; 34, attracting box; 35, insect olfactometer; 41, plug; 42, slide bar; 43, driving slider; 44, inclined groove; 45, driving round pin; 46, transmission rod; 50, driving mechanism; 51, driving disc; 52, first driven tooth; 53, first driven sleeve; 54, first spring seat; 55, first reset spring; 56, input rack; 57, input gear; 58, output gear; 59, output rack; 60, A bevel gear; 61, B bevel gear; 62, C bevel gear; 63, D bevel gear; 64, transmission shaft; 65, ball head plunger; 66, first positioning disc; 71, second positioning disc; 72, second driven sleeve; 73, cage; 74, positioning bead; 75, second driven tooth; 76, driving plate; 77, second spring seat; 78, second reset spring; 79, relief groove; 80, cylinder bracket; 81, locking cylinder; 82, manual reversing valve. Detailed implementation mode

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] Embodiment 1: The present invention provides a technical solution: A feeding device for experimental animals used in flea killing experiments, as Figure 1 、 2 shown, including a glove operation box 11, a food tray 12 and a water dispenser 13 are fixed inside the glove operation box 11. The inside of the glove operation box 11 is used to raise parasitized animals parasitized by fleas. The glove operation box is a commonly used tool, including a sealed transparent box and multiple gloves, and is often used in painting work. A ventilation fan 14 is fixed on the glove operation box 11. An inward-opening inner door 15 is rotatably arranged on one side of the glove operation box 11. An air knife 18 is fixed at the inner door 15 of the glove operation box 11. The air knife is a commonly used cleaning tool. After compressed air is blown out from the air knife, a wind curtain can be formed. The air knife 18 is connected to an air compressor that provides compressed air through a pipeline. A transition box 17 is fixed on the box body of the glove operation box 11 at a position outside the inner door 15. An outward-opening outer door 16 is rotatably arranged on the transition box 17.

[0050] When the experimenter transfers experimental tools into the glove operation box 11, the outer door 16 is first opened from the outside, the experimental tools are placed in the transition box 17, then the outer door 16 is closed, and then the experimenter wears the gloves of the glove operation box 11 and opens the inner door 15 from the inside to take out the experimental tools in the transition box 17 from inside the glove operation box 11. During the process of transferring the experimental tools, the inside of the glove operation box 11 can be kept isolated from the outside world, and there is an air knife 18 at the inner door 15. The air knife 18 can blow out a blocking air curtain to prevent fleas from passing through. Through the cooperation of the glove operation box 11, the air knife 18 and the transition box 17, the sealing performance of the breeding device is improved, and the probability of flea escape is reduced.

[0051] As Figure 3 , 4 , as shown in Figure 5, a sampling box 23 is fixed on one side of the glove operation box 11. The sampling box 23 is communicated with the glove operation box 11. A blow pipe 21 and a flea suction cylinder 22 can be placed inside the glove operation box 11. The air compressor pipeline is connected to the inlet of the blow pipe 21. The outlet of the blow pipe 21 leads to the outside of the blow pipe 21. The top of the flea suction cylinder 22 is fixed between the inlet and the outlet of the blow pipe 21. A filter screen is fixed at the bottom of the flea suction cylinder 22, and the filter screen can prevent fleas from passing through. A prolongation pipe 24 is fixed at the bottom of the sampling box 23. The bottom of the prolongation pipe 24 is threadedly connected to the top of the sampling pipe 25. The flea suction cylinder 22 can be inserted into the prolongation pipe 24. After the fleas enter the sampling pipe 25 at the bottom of the prolongation pipe 24 from the flea suction cylinder 22, the prolongation pipe 24 can prevent the fleas from jumping out. In this example, the length of the prolongation pipe 24 is 400 mm, which exceeds the maximum height of the fleas' high jump ability.

[0052] When using the flea suction cylinder 22 to collect dead and live fleas cleaned from the parasitized animals inside the glove operation box 11, the blow pipe 21 and the flea suction cylinder 22 are placed inside the glove operation box 11. Compressed air is blown into the inlet of the blow pipe 21 and blown out from the outlet of the blow pipe 21. After the compressed air passes through the top of the flea suction cylinder 22, suction force is generated through the Bernoulli effect, and the fleas can be adsorbed below the filter screen at the bottom of the flea suction cylinder 22, which is convenient for the experimenter to collect the fleas.

[0053] As Figure 5 shown, a plug 41 is slidably arranged on the sampling box 23, and a driving mechanism 50 (marked in Figure 4 ) is arranged on the prolongation pipe 24. After the flea suction cylinder 22 is inserted into the prolongation pipe 24, when the flea suction cylinder 22 is pressed down, it can drive the driving mechanism 50 to drive the plug 41 to tightly press the outlet of the blow pipe 21.

[0054] When transferring the fleas in the flea suction tube 22 to the sampling tube 25, first insert the flea suction tube 22 into the extension tube 24 and then press it down. When the extension tube 24 is pressed down, it can drive the plug 41 to tightly press the outlet of the air blowing tube 21 through the driving mechanism 50, so that the compressed air entering from the inlet of the air blowing tube 21 is blown out from the flea suction tube 22, blowing the fleas in the flea suction tube 22 into the extension tube 24 and then falling into the sampling tube 25.

[0055] As Figure 6 shown, the air compressor pipeline is connected to the odor attracting component. The odor attracting component can be set on the ground. After collecting both the dead and live fleas on the parasitized animal into the sampling tube 25, the experimenter then transfers the fleas in the sampling tube 25 to the odor attracting component. The odor attracting component can attract the movement of fleas, separating the dead and live fleas, facilitating the counting of dead and live fleas and improving the accuracy of the experiment.

[0056] As Figure 6 shown, the odor attracting component includes a drying tower 31. Activated carbon is provided in the drying tower 31. The air compressor is first connected to the inlet of the drying tower 31. The drying tower 31 is used to purify the gas blown out by the air compressor. The outlet of the drying tower 31 is connected to the inlet of the gas flow controller 32. The gas flow controller is a commonly used gas flow regulating device. The outlet of the gas flow controller 32 is connected to the inlet of the water bottle 33. The water bottle 33 is used to moisten the gas blown out by the air compressor, making the gas humidity more in line with the habits of fleas. The outlet of the water bottle 33 is connected to the attracting box 34. An attracting animal for attracting fleas is placed in the attracting box 34. Fleas mainly rely on smell to find the parasitized attracting animal. The outlet of the attracting box 34 is connected to the inlet of the insect olfactory meter 35. The outlet of the insect olfactory meter 35 is open to the atmosphere. The insect olfactory meter is a commonly used experimental device for observing the responses of insects to different odor sources. The insect olfactory meter usually has multiple inlets, and only one inlet is used in this embodiment.

[0057] The experimenter transfers the fleas in the sampling tube 25 to the outlet of the insect olfactory meter 35, and then blows air into the drying tower 31 through the air compressor to supply gas to the odor attracting component. The live fleas will move to the inlet of the insect olfactory meter 35 under the attraction of the attracting animal in the attracting box 34, while the dead fleas remain at the outlet of the insect olfactory meter 35. After the live and dead fleas are separated, the fleas are then counted.

[0058] As Figure 7 、 8 shown, one end of a slide bar 42 is fixed to the plug 41, and the other end of the slide bar 42 is fixed to the driving slider 43. The slide bar 42 is slidably arranged on the sampling box 23. An inclined slot 44 is formed in the driving slider 43, and a driving round pin 45 is in contact connection in the inclined slot 44. The driving round pin 45 is fixed to the upper end of the transmission rod 46, and the transmission rod 46 is slidably arranged outside the sampling box 23.

[0059] The downward movement of the transmission rod 46 can drive the sliding of the driving round pin 45, and then drive the relative movement of the driving round pin 45 and the inclined groove 44 on the driving slider 43, and then drive the movement of the driving slider 43, so as to drive the sliding rod 42 and the plug 41 to slide into the sampling box 23. That is, the downward movement of the transmission rod 46 can drive the sliding of the plug 41, which is convenient for driving the sliding of the plug 41.

[0060] As Figure 7 、 9 、10, and 11 show, the driving mechanism 50 includes a first driven tooth 52. A plurality of the first driven teeth 52 are arranged to be lifted and lowered in the extension tube 24. The plurality of first driven teeth 52 are fixed on a first driven sleeve 53. The first driven sleeve 53 is sleeved outside the extension tube 24. A first spring seat 54 is fixed outside the extension tube 24. A first return spring 55 is fixed between the first spring seat 54 and the first driven sleeve 53. The first return spring 55 is sleeved on the extension tube 24. In the free state, the first return spring 55 can keep the first driven sleeve 53 upward.

[0061] As Figure 10 、 12 As shown in, an input rack 56 is fixed on the first driven sleeve 53. The input rack 56 is meshed and connected with an input gear 57. The input gear 57 is rotatably arranged under the sampling box 23. The input gear 57 can drive a bevel gear set. The bevel gear set is installed under the sampling box 23. The bevel gear set can drive an output gear 58. The output gear 58 is rotatably arranged under the sampling box 23. The output gear 58 is meshed and connected with an output rack 59. The upper end of the output rack 59 is fixed to the lower end of the transmission rod 46.

[0062] As Figure 7 、 9 As shown in, a driving disc 51 is fixed on the flea suction tube 22. The driving disc 51 can contact the first driven tooth 52.

[0063] The experimenter first inserts the flea suction tube 22 into the sampling box 23 and aligns it with the extension tube 24 (as Figure 7 shown), and then inserts the flea suction tube 22 into the extension tube 24 (as Figure 5 shown). Then, the experimenter presses down the flea suction tube 22, so that the driving disc 51 on the flea suction tube 22 drives the first driven tooth 52 to descend, and then drives the first driven sleeve 53 to descend, and then compresses the first return spring 55, and then drives the input rack 56 to descend, and then drives the input gear 57 to rotate. The rotation of the input gear 57 drives the output gear 58 to rotate through the bevel gear set, and then drives the output rack 59 to descend, so as to drive the transmission rod 46 to descend. That is, when the experimenter presses down the flea suction tube 22, it can drive the transmission rod 46 to descend, which is convenient for driving the descent of the transmission rod 46.

[0064] As Figure 10 、12 As shown in Figures 13 and 14, the bevel gear set includes bevel gear A 60. The input gear 57 is coaxially fixed with the bevel gear A 60. The bevel gear A 60 is meshed and connected with the bevel gear B 61. The bevel gear B 61 is rotatably arranged under the sampling box 23. One end of the transmission shaft 64 is coaxially fixed with the bevel gear B 61. The other end of the transmission shaft 64 is coaxially fixed with the bevel gear C 62. The bevel gear C 62 is meshed and connected with the bevel gear D 63. The bevel gear D 63 is coaxially fixed on the output gear 58.

[0065] The rotation of the input gear 57 can drive the bevel gear A 60 to rotate, thereby driving the bevel gear B 61 to rotate, further driving the bevel gear C 62 to rotate, and then driving the bevel gear D 63 to rotate, so as to drive the output gear 58 to rotate.

[0066] As Figure 7 、 9 As shown in Figures 10 and 15, a first positioning disk 66 is fixed on the flea suction tube 22. A V-shaped groove is provided on the first positioning disk 66. A plurality of ball head plungers 65 are installed in the extension tube 24. The ball head plungers 65 are installed at the extreme position where the first positioning disk 66 descends. The ball head plunger is a commonly used positioning part. The ball head pin inside it is kept protruding through a spring. The ball head plunger 65 can clamp the first positioning disk 66 (as Figure 10 shown).

[0067] When the flea suction tube 22 descends in the extension tube 24 and drives the first positioning disk 66 to descend, the first positioning disk 66 first presses the ball head plunger 65 to retract the ball head pin inside it. Subsequently, the flea suction tube 22 and the first positioning disk 66 continue to descend. The ball head pin inside the ball head plunger 65 protrudes and is stuck into the V-shaped groove of the first positioning disk 66. The ball head plunger 65 can clamp the first positioning disk 66, thereby preventing the first positioning disk 66 from rising under the action of the first return spring 55. The flea suction tube 22 can be conveniently locked by the cooperation of the ball head plunger 65 and the first positioning disk 66.

[0068] The experimenter first inserts the flea suction tube 22 into the extension tube 24, and then presses down the flea suction tube 22 to drive the transmission rod 46 to descend, thereby driving the plug 41 to slide towards the inside of the sampling box 23, so that the plug 41 presses tightly against the outlet of the air blowing tube 21. At the same time, the ball head plunger 65 clamps the first positioning disk 66 at the extreme position where the flea suction tube 22 descends, realizing the locking of the flea suction tube 22, facilitating the locking of the flea suction tube 22, and facilitating the experimenter to use the flea suction tube 22 to release fleas.

[0069] Working process: After the flea-killing drug is used on the parasitized animal in the glove operation box 11, the dead and surviving fleas on the parasitized animal are cleaned up, and the fleas are sucked using the flea suction tube 22 placed in the glove operation box 11. When sucking, compressed air is blown in from the inlet of the air blowing tube 21 and blown out from the outlet of the air blowing tube 21. After the compressed air passes through the top of the flea suction tube 22, suction is generated through the Bernoulli effect, and the fleas can be adsorbed to the bottom of the flea suction tube 22. Then, the experimenter transfers the fleas in the flea suction tube 22 into the sampling tube 25. After all the fleas are collected in the sampling tube 25, the fleas in the sampling tube 25 are transferred to the outlet of the insect olfactometer 35, and then air is supplied to the odor attracting component. The surviving fleas will move to the inlet of the insect olfactometer 35. After waiting for the surviving and dead fleas to be separated, the fleas are counted to statistically analyze the flea survival rate and evaluate the effect of the flea-killing drug.

[0070] When transferring the fleas into the sampling tube 25, the experimenter first inserts the flea suction tube 22 into the sampling box 23 and aligns it with the extension tube 24. Then, the flea suction tube 22 is inserted into the extension tube 24. Subsequently, the flea suction tube 22 is pressed down, causing the driving disc 51 on the flea suction tube 22 to drive the first driven tooth 52 to descend, thereby driving the first driven sleeve 53 to descend, further compressing the first return spring 55, and then driving the input rack 56 to descend, thereby driving the input gear 57 to rotate. The rotation of the input gear 57 drives the output gear 58 to rotate through the bevel gear set, and then drives the output rack 59 to descend, thus driving the transmission rod 46 to descend. That is, the descent of the flea suction tube 22 can drive the transmission rod 46 to descend, further driving the plug 41 to slide into the sampling box 23, causing the plug 41 to press tightly against the outlet of the air blowing tube 21. At the same time, the ball plunger 65 clamps the first positioning disc 66 at the limit position of the descent of the flea suction tube 22, realizing the locking of the flea suction tube 22.

[0071] After the plug 41 presses tightly against the outlet of the air blowing tube 21, the compressed air is blown out from the flea suction tube 22, blowing the fleas into the extension tube 24 and then falling into the sampling tube 25, realizing the transfer of the fleas.

[0072] Embodiment 2: As Figures 16 - 19 shown, the driving mechanism 50 includes a cage 73. The cage 73 is arranged to move up and down in the extension tube 24. A plurality of holding holes are formed in the cage 73, and a positioning bead 74 is placed in each holding hole. A second positioning disc 71 is fixed outside the flea suction tube 22. A V-shaped groove is formed in the second positioning disc 71. When the positioning bead 74 moves towards the center of the second positioning disc 71, it can be caught in the V-shaped groove of the second positioning disc 71.

[0073] As Figure 18 、 19As shown, a plurality of second driven teeth 75 are fixed under the retaining frame 73, and the second driven teeth 75 are arranged in the extension tube 24 for lifting and lowering. The plurality of second driven teeth 75 are fixed on a second driven sleeve 72, and the second driven sleeve 72 is sleeved on the outside of the extension tube 24. The second driven sleeve 72 is fixed on the active plate 76, and a second spring seat 77 is fixed on the outside of the extension tube 24. A second return spring 78 is fixed between the second spring seat 77 and the active plate 76, and the second return spring 78 is sleeved on the extension tube 24. The second return spring 78 can keep the active plate 76 upward in a free state, and the lower end of the transmission rod 46 is fixed on the active plate 76.

[0074] like Figure 18 , 19 As shown in FIG. 22 , the position of the retaining frame 73 when the second return spring 78 is in a free state is called the initial position. The extension tube 24 is provided with a clearance groove 79 at the initial position of the retaining frame 73. The positioning bead 74 can enter the clearance groove 79 when it moves away from the center of the second positioning plate 71.

[0075] When the flea suction cylinder 22 descends in the extension tube 24, the second positioning plate 71 first squeezes the positioning beads 74 on the retaining frame 73 so that the positioning beads 74 enter the clearance groove 79 (such as Figure 19 As shown in the figure), the active plate 76 descends and drives the second driven sleeve 72 to descend, and then drives the second driven tooth 75 to descend, and then drives the retaining frame 73 to descend. When the retaining frame 73 descends, it can drive the positioning beads 74 to descend. The positioning beads 74 will gradually stagger with the yield groove 79 during the descent, and then leave the yield groove 79 and enter the V-shaped groove of the second positioning plate 71, and then the positioning beads 74 clamp the second positioning plate 71, so that the descent of the retaining frame 73 can drive the descent of the second positioning plate 71, and then drive the flea suction tube 22 to descend. When the positioning beads 74 are completely staggered with the yield groove 79, the positioning beads 74 are pressed by the inner wall of the extension tube 24 into the V-shaped groove of the second positioning plate 71 (as shown in the figure). Figure 20 , 22 As shown), the second positioning plate 71 is pressed, thereby pressing the flea suction tube 22. At the same time, the descent of the active plate 76 can drive the transmission rod 46 to descend, thereby driving the plug 41 to slide into the sampling box 23, so that the plug 41 presses the outlet of the blowing tube 21.

[0076] The descent of the active plate 76 can drive the flea suction tube 22 and the plug 41 to slide, so that the plug 41 presses the outlet of the air blowing pipe 21, which is convenient for closing the outlet of the air blowing pipe 21.

[0077] like Figure 18 As shown, a cylinder bracket 80 is fixed under the sampling box 23, one end of a locking cylinder 81 is fixed on the cylinder bracket 80, and the other end of the locking cylinder 81 is fixed under the active plate 76. The retraction of the locking cylinder 81 can drive the active plate 76 to descend.

[0078] likeFigure 21 As shown, a manual reversing valve 82 is fixed inside the glove operation box 11. The manual reversing valve is a commonly used valve for controlling the direction of compressed air, and the manual reversing valve 82 can control the telescoping of the locking cylinder 81.

[0079] In this embodiment, the layout and connection method of the compressed air pipeline for the manual reversing valve 82 to control the reversing of the locking cylinder 81 belong to the prior art, so details will not be described herein.

[0080] After the experimenter inserts the flea suction tube 22 into the extension tube 24, the experimenter operates the manual reversing valve 82 to allow air to enter the locking cylinder 81, thereby driving the locking cylinder 81 to retract, and then driving the active plate 76 to descend. The descent of the active plate 76 can drive the flea suction tube 22 and the plug 41 to slide, and the compressed air can lock the position of the active plate 76, thereby locking the state of the driving mechanism 50 and further locking the position of the flea suction tube 22, making the locking of the flea suction tube 22 more reliable and facilitating the experimenter to use the flea suction tube 22 to release fleas.

[0081] The remaining technical features are the same as those in the first embodiment.

[0082] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for experimental animals used in flea control experiments, characterized in that: The glove operation box (11) comprises a food tray (12) and a water dispenser (13) fixed inside the glove operation box (11), a ventilation fan (14) fixed on the glove operation box (11), an inner door (15) rotatably opened inwardly provided on one side of the glove operation box (11), an air knife (18) fixed at the inner door (15) of the glove operation box (11), a pipeline of the air knife (18) connected to an air compressor, a transition box (17) fixed on a part of the box body of the glove operation box (11) located outside the inner door (15), and an outer door (16) rotatably opened outwardly provided on the transition box (17); A sampling box (23) is fixed on one side of the glove operation box (11), and the sampling box (23) is connected to the glove operation box (11). An air blowing tube (21) and a flea suction tube (22) can be placed in the glove operation box (11). An air compressor pipeline is connected to the inlet of the air blowing tube (21), and the outlet of the air blowing tube (21) leads to the outside of the air blowing tube (21). The top of the flea suction tube (22) is fixed between the inlet and outlet of the air blowing tube (21), and a filter is fixed at the bottom of the flea suction tube (22), and the filter can prevent fleas from passing through. An extension tube (24) is fixed at the bottom of the sampling box (23), and the bottom of the extension tube (24) is threadedly connected to the top of the sampling tube (25). The flea suction tube (22) can be inserted into the extension tube (24), and the extension tube (24) can prevent fleas from jumping out. A plug (41) is slidably provided on the sampling box (23), and a driving mechanism (50) is provided on the extension tube (24). Pressing down the flea suction tube (22) can drive the driving mechanism (50) to drive the plug (41) to press the outlet of the air blowing tube (21); The air compressor line is connected to the scent attractant assembly.

2. The device for raising experimental animals for flea control experiments according to claim 1, characterized in that: The odor attracting component comprises a drying tower (31), wherein activated carbon is arranged in the drying tower (31), an air compressor is first connected to the inlet of the drying tower (31), the outlet of the drying tower (31) is connected to the inlet of a gas flow controller (32), the outlet of the gas flow controller (32) is connected to the inlet of a water bottle (33), the outlet of the water bottle (33) is connected to the inlet of an attracting box (34), an attracting animal for attracting fleas is placed in the attracting box (34), the outlet of the attracting box (34) is connected to the inlet of an insect olfactometer (35), and the outlet of the insect olfactometer (35) is connected to the atmosphere.

3. The device for raising experimental animals for flea control experiments according to claim 1, characterized in that: One end of a slide rod (42) is fixed to the plug (41), and the other end of the slide rod (42) is fixed to a driving slider (43). The slide rod (42) is slidably arranged on the sampling box (23). The driving slider (43) is provided with an inclined groove (44). A driving round pin (45) is contact-connected in the inclined groove (44). The driving round pin (45) is fixed to the upper end of a transmission rod (46), and the transmission rod (46) is slidably arranged outside the sampling box (23).

4. The device for raising experimental animals for flea control experiments according to claim 3, characterized in that: The driving mechanism (50) comprises a first driven tooth (52), a plurality of the first driven teeth (52) are arranged in a lifting manner in the extension tube (24), the plurality of the first driven teeth (52) are fixed on a first driven sleeve (53), the first driven sleeve (53) is sleeved on the outside of the extension tube (24), a first spring seat (54) is fixed on the outside of the extension tube (24), a first return spring (55) is fixed between the first spring seat (54) and the first driven sleeve (53), the first return spring (55) is sleeved on the extension tube (24), and the first return spring (55) can keep the first driven sleeve (53) upward in a free state; An input rack (56) is fixed to the first driven sleeve (53), the input rack (56) is meshedly connected to an input gear (57), the input gear (57) is rotatably arranged under the sampling box (23), the input gear (57) can drive a bevel gear set, the bevel gear set is installed under the sampling box (23), the bevel gear set can drive an output gear (58), the output gear (58) is rotatably arranged under the sampling box (23), the output gear (58) is meshedly connected to an output rack (59), and the upper end of the output rack (59) is fixed to the lower end of the transmission rod (46); A driving disk (51) is fixed on the flea suction cylinder (22), and the driving disk (51) can contact the first driven tooth (52).

5. The device for raising experimental animals for flea control experiments according to claim 4, characterized in that: The bevel gear set comprises an A bevel gear (60), the A bevel gear (60) being coaxially fixed to the input gear (57), the A bevel gear (60) being meshingly connected to the B bevel gear (61), the B bevel gear (61) being rotatably arranged under the sampling box (23), the B bevel gear (61) being coaxially fixed to one end of a transmission shaft (64), the other end of the transmission shaft (64) being coaxially fixed to the C bevel gear (62), the C bevel gear (62) being meshingly connected to the D bevel gear (63), and the D bevel gear (63) being coaxially fixed to the output gear (58).

6. The device for raising experimental animals for flea control experiments according to claim 4, characterized in that: A first positioning disk (66) is fixed on the flea suction cylinder (22), and a V-shaped groove is formed on the first positioning disk (66). A plurality of ball plungers (65) are installed in the extension tube (24), and the ball plungers (65) are installed at the extreme position of the first positioning disk (66) when it descends, and the ball plungers (65) can clamp the first positioning disk (66).

7. The device for raising experimental animals for flea control experiments according to claim 3, characterized in that: The driving mechanism (50) comprises a retaining frame (73), the retaining frame (73) is arranged in the extension tube (24) for lifting and lowering, the retaining frame (73) is provided with a plurality of retaining holes, a positioning bead (74) is placed in each retaining hole, a second positioning disk (71) is fixed outside the flea suction tube (22), a V-shaped groove is provided on the second positioning disk (71), and the positioning bead (74) can be inserted into the V-shaped groove of the second positioning disk (71) when moving toward the center of the second positioning disk (71); A plurality of second driven teeth (75) are fixed under the retaining frame (73), the second driven teeth (75) are arranged in an elevating manner in the extension tube (24), the plurality of second driven teeth (75) are fixed on a second driven sleeve (72), the second driven sleeve (72) is sleeved outside the extension tube (24), the second driven sleeve (72) is fixed on the active plate (76), a second spring seat (77) is fixed outside the extension tube (24), a second return spring (78) is fixed between the second spring seat (77) and the active plate (76), the second return spring (78) is sleeved on the extension tube (24), the second return spring (78) can keep the active plate (76) upward in a free state, and the lower end of the transmission rod (46) is fixed on the active plate (76); The position of the retaining frame (73) when the second return spring (78) is in a free state is called the initial position. The extension tube (24) is provided with a clearance groove (79) at the initial position of the retaining frame (73). The positioning bead (74) can enter the clearance groove (79) when moving away from the center of the second positioning plate (71).

8. The device for raising experimental animals for flea control experiments according to claim 7, characterized in that: A cylinder bracket (80) is fixed under the sampling box (23), one end of a locking cylinder (81) is fixed on the cylinder bracket (80), and the other end of the locking cylinder (81) is fixed under the active plate (76). The retraction of the locking cylinder (81) can drive the active plate (76) to descend; A manual reversing valve (82) is fixed in the glove operating box (11), and the manual reversing valve (82) can control the extension and retraction of the locking cylinder (81).

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