Experimental animal feeding device for flea killing experiment

Abstract

According to the experimental animal feeding device for the flea killing experiment, through cooperation of a glove operation box, an air knife and a transition box, the sealing performance of the feeding device is improved, the probability that fleas escape is reduced, after compressed air passes through the top of a flea suction cylinder, suction force is generated through the Bernoulli effect, the fleas can be sucked to the bottom of the flea suction cylinder, and the fleas can be killed; when the fleas are transferred into the sampling pipe, the flea suction cylinder is inserted into the extension pipe and then pressed down, the driving mechanism can drive the plug to tightly press the outlet of the air blowing pipe, so that compressed air is blown out from the flea suction cylinder, the fleas are blown into the extension pipe and then fall into the sampling pipe, and the fleas on parasitic animals are collected into the sampling pipe. The fleas in the sampling tube are transferred into the smell luring assembly by an experimenter, and the smell luring assembly can attract the fleas to move, so that the dead fleas and the survival fleas are separated, the dead fleas and the survival fleas are conveniently counted, and the experiment accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of experimental animal breeding devices, in particular to an experimental animal breeding device used for flea killing experiments. Background Art

[0002] Fleas are small parasitic insects that are good at jumping. When fleas bite the human body, they will cause local inflammation and there is a risk of spreading infectious diseases, posing a threat to human health. It is necessary to use flea repellent drugs in time to eliminate fleas.

[0003] In order to evaluate the effect of flea control drugs in the prior art, after using flea control drugs on parasitized animals, experimenters need to first clean the dead and living fleas on the parasitized animals, and then count the dead and living fleas cleaned from the parasitized animals to calculate the survival rate of fleas. Existing feeding devices for experimental animals (i.e., parasitized animals) used in flea control experiments include cages, food trays, and waterers, which have poor sealing properties and pose a risk of flea escape. In addition, when counting dead and living fleas, it is difficult and prone to large errors, thereby reducing the accuracy of the experiment.

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

[0005] The object of the present invention is to provide a feeding device for experimental animals used in flea control experiments to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a feeding device for experimental animals used in flea control experiments, comprising a glove operation box, a food tray and a water dispenser are fixed in the glove operation box, a ventilation fan is fixed on the glove operation box, an inner door that is rotatably provided on one side of the glove operation box and opens inwards, an air knife is fixed at the inner door of the glove operation box, and the air knife pipeline is connected to an air compressor that provides compressed air, a transition box is fixed on the body of the glove operation box at a position outside the inner door, and an outer door that is rotatably provided on the transition box and opens outwards; A sampling box is fixed on one side of the glove operation box, the sampling box is connected to the glove operation box, an air blow pipe and a flea suction cylinder can be placed in the glove operation box, an air compressor pipeline is connected to the inlet of the air blow pipe, the outlet of the air blow pipe leads to the outside of the air blow pipe, the top of the flea suction cylinder is fixed between the inlet and outlet of the air blow pipe, a filter is fixed at the bottom of the flea suction cylinder, the filter can prevent fleas from entering, a sampling box is fixed on one side of the glove operation box, the sampling box is connected to 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, and the extension tube can prevent fleas from jumping out; A plug is slidably arranged on the sampling box, and a driving mechanism is arranged on the extension tube. When the flea suction tube is pressed down, the driving mechanism can be driven to drive the plug to press the outlet of the blowing tube tightly. The air compressor line is connected to the scent attractant assembly.

[0007] Preferably, the odor attractant 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 attractant box, an attractant animal for attracting fleas is placed in the attractant box, the outlet of the attractant box is connected to the inlet of the insect olfactometer, and the outlet of the insect olfactometer is connected to the atmosphere.

[0008] Preferably, one end of a sliding rod is fixed on the plug, the other end of the sliding rod is fixed on the driving slider, the sliding rod is slidably arranged on the sampling box, an inclined groove is provided on the driving slider, a driving round pin is contacted and connected in the inclined groove, the driving round pin is fixed on the upper end of the transmission rod, and the transmission rod is slidably arranged outside the sampling box.

[0009] Preferably, the driving mechanism includes a first driven tooth, a plurality of the first driven teeth are arranged in the extension tube for lifting, the plurality of the first driven teeth are fixed on a first driven sleeve, the first driven sleeve is sleeved outside the extension tube, a first spring seat is fixed outside the extension tube, 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 tube, and the first return spring can keep the first driven sleeve upward in a free state; An input rack is fixed on the first driven sleeve, the input rack is meshed 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 with an output rack, and the upper end of the output rack is fixed to the lower end of the transmission rod; A driving disc is fixed on the flea suction cylinder, and the driving disc can contact the first driven tooth.

[0010] Preferably, the bevel gear set includes a bevel gear A, which is coaxially fixed to the input gear, and is meshingly connected to a bevel gear B. The bevel gear B is rotatably arranged under the sampling box, and is coaxially fixed to one end of a transmission shaft with the bevel gear B, and is coaxially fixed to the other end of the transmission shaft with a bevel gear C, which is meshingly connected to a bevel gear D, and is coaxially fixed to the output gear.

[0011] Preferably, a first positioning disk is fixed on the flea suction cylinder, a shaped groove is provided 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, and the ball plungers can clamp the first positioning disk.

[0012] Preferably, the driving mechanism includes a retaining frame, which is arranged to be raised and lowered in the extension tube, and has a plurality of retaining holes on the retaining frame, in each of which a positioning bead is placed, and a second positioning plate is fixed outside the flea suction tube, and the second positioning plate has a V-shaped groove, and the positioning bead can be stuck in the V-shaped groove of the second positioning plate when it moves toward the center of the second positioning plate.

[0013] A plurality of second driven teeth are fixed under the retainer, and the second driven teeth are arranged in the extension tube for lifting. The plurality of second driven teeth are fixed on a second driven sleeve, and the second driven sleeve is sleeved outside the extension tube, and the second driven sleeve is fixed on the active plate. A second spring seat is fixed outside the extension tube, and 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, and the second return spring can keep the active plate upward in a free state, and the lower end of the transmission rod is fixed on the active plate; The position of the retainer when the second return spring is in a free state is called the initial position. The extension tube is provided with a clearance groove at the initial position of the retainer, and the positioning bead can enter the clearance groove when it moves away from the center of the second positioning plate.

[0014] Preferably, a cylinder bracket is fixed under the sampling box, one end of a locking cylinder is fixed on the cylinder bracket, and the other end of the locking cylinder is fixed under the active plate, and the retraction of the locking cylinder can drive the active plate to descend; A manual reversing valve is fixed in the glove operation box, and the manual reversing valve can control the extension and retraction of the locking cylinder.

[0015] Compared with the prior art, the invention has the following beneficial effects: when the experimenter transfers the experimental tools into the glove operation box, he first opens the outer door from the outside, places the experimental tools in the transition box, then closes the outer door, puts on the gloves of the glove operation box, opens the inner door from the inside, and takes out the experimental tools in the transition box from the inside of the glove operation box. In the process of transferring the experimental tools, the inside of the glove operation box can be kept isolated from the outside world, and the inner door is provided with an air knife, which 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. When using a flea suction cylinder to collect dead and living fleas cleaned from parasitized animals in a glove box, place the air blow tube and flea suction cylinder in the glove box, blow compressed air in from the air blow tube inlet and out from the air blow tube outlet. After the compressed air passes through the top of the flea suction cylinder, suction is generated through the Bernoulli effect, which can absorb the fleas to the bottom of the flea suction cylinder, making it easier for the experimenter to collect fleas; When transferring the fleas in the flea suction cylinder into the sampling tube, first insert the flea suction cylinder into the extension tube and then press it down. When the extension tube is pressed down, it can drive the plug to press the outlet of the air blowing tube through the driving mechanism, so that the compressed air entering from the inlet of the air blowing tube is blown out from the flea suction cylinder, blowing the fleas in the flea suction cylinder into the extension tube, and then falling into the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axonometric diagram of the first embodiment of the present invention; Figure 2 This is an axonometric view of the first embodiment of the present invention, with the top wall and side walls of the glove box removed; Figure 3 It is a front view of the air blowing tube and flea suction cylinder of the first embodiment of the present invention; Figure 4 It is another angled axonometric view of the first embodiment of the present invention; Figure 5 This is an isometric view of the sampling box, the driving mechanism and the flea suction cylinder of the first embodiment of the present invention, wherein the flea suction cylinder is inserted into the extension tube; Figure 6 A schematic diagram of the odor attracting component of the present invention; Figure 7 It is a partial cross-sectional view of the sampling box, the driving mechanism and the flea suction tube in the main direction of the embodiment 1 of the present invention, the driving mechanism and the extension tube are in a cut-away state, and the flea suction tube is not inserted into the extension tube; Figure 8 For the present invention Figure 7 A local enlarged view of point A; Fig. 9 It is a cross-sectional view of the sampling box, the driving mechanism and the flea suction tube in the main viewing direction of the first embodiment of the present invention, the driving mechanism and the extension tube are in a cut-away state, and the flea suction tube is inserted into the extension tube and locked; Fig.10 For the present invention Fig. 9 A partial enlarged view of point B; Fig.11 This is an axonometric view of the sampling box of the first embodiment of the present invention, with its top wall and side walls removed; Fig.12 For the present invention Fig. 9 A partial enlarged view of point C; Fig.13 For the present invention Figure 5 A partial enlarged view of point D; Fig.14 For the present invention Figure 5 A local enlarged view of point E; Fig.15 For the present invention Fig.11 A partial enlarged view of point F; Fig.16 The figure is a front view of the air blowing tube and flea suction tube of the second embodiment of the present invention; Fig.17 This is an axonometric view of the sampling box of the second embodiment of the present invention, with its top wall and side walls removed; Fig.18It is a partial cross-sectional view of the sampling box, the driving mechanism and the flea suction tube in the main direction of the second embodiment of the present invention, the driving mechanism and the extension tube are in a cut-away state, and the flea suction tube is inserted into the extension tube; Fig.19 For the present invention Fig.18 A local enlarged view of point G; Fig. 20 It is a partial cross-sectional view of the sampling box, the driving mechanism and the flea suction tube in the main direction of the second embodiment of the present invention, the driving mechanism and the extension tube are in a cut-away state, and the flea suction tube is inserted into the extension tube and locked; Fig.21 This is an axonometric view of the second embodiment of the present invention, with the top wall and side walls of the glove box removed.

[0017] Fig. 22 For the present invention Fig. 20 A partial enlarged view of point H.

[0018] In the figure: 11, glove operation box, 12, food tray, 13, drinking fountain, 14, ventilation fan, 15, inner door, 16, outer door, 17, transition box, 18, wind knife, 21, air blowing pipe, 22, flea suction cylinder, 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 slide block, 44, inclined slot, 45, driving round pin, 46, transmission rod, 50, driving mechanism, 51, active disk, 52, first driven tooth, 53, first driven sleeve , 54, the first spring seat, 55, the first return spring, 56, the input rack, 57, the input gear, 58, the output gear, 59, the output rack, 60, the A bevel gear, 61, the B bevel gear, 62, the C bevel gear, 63, the D bevel gear, 64, the transmission shaft, 65, the ball plunger, 66, the first positioning plate, 71, the second positioning plate, 72, the second driven sleeve, 73, the retaining frame, 74, the positioning bead, 75, the second driven tooth, 76, the active plate, 77, the second spring seat, 78, the second return spring, 79, the give way groove, 80, the cylinder bracket, 81, the locking cylinder, 82, the manual reversing valve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1: The present invention provides a technical solution: a feeding device for experimental animals used in flea control experiments, such as Figure 1 , 2 As shown, it includes a glove operation box 11, in which a food tray 12 and a waterer 13 are fixed. The interior of the glove operation box 11 is used to raise parasitic animals infested with fleas. The glove operation box is a commonly used tool, including a closed transparent box and a plurality of gloves, and is commonly used in paint spraying. A ventilation fan 14 is fixed on the glove operation box 11, and an inner door 15 that opens inwards is rotatably provided on one side of the glove operation box 11. A wind knife 18 is fixed at the inner door 15 of the glove operation box 11. The wind knife is a commonly used cleaning tool. Compressed air can form an air curtain after being blown out of the wind knife. The wind knife 18 pipeline is connected to an air compressor that provides compressed air. A transition box 17 is fixed on the body of the glove operation box 11 at a position outside the inner door 15, and an outer door 16 that opens outwards is rotatably provided on the transition box 17.

[0021] When the experimenter transfers the experimental tools into the glove operation box 11, he first opens the outer door 16 from the outside, places the experimental tools in the transition box 17, then closes the outer door 16, puts on the gloves of the glove operation box 11, opens the inner door 15 from the inside, and takes out the experimental tools in the transition box 17 from the inside of the glove operation box 11. In the process of transferring the experimental tools, the inside of the glove operation box 11 can be kept isolated from the outside world, and the inner door 15 is provided with a wind knife 18, which can blow out a blocking wind curtain to prevent fleas from passing through. Through the cooperation of the glove operation box 11, the wind knife 18 and the transition box 17, the sealing of the breeding device is improved and the probability of flea escape is reduced.

[0022] like Figure 3 , 4 As shown in Figure 5, 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. The glove operation box 11 can be placed with a blowing pipe 21 and a flea suction cylinder 22. The air compressor pipeline is connected to the inlet of the blowing pipe 21, and the outlet of the blowing pipe 21 leads to the outside of the blowing pipe 21. The top of the flea suction cylinder 22 is fixed between the inlet and outlet of the blowing pipe 21, and a filter is fixed at the bottom of the flea suction cylinder 22, which 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 cylinder 22 can be inserted into the extension tube 24. After the fleas enter the sampling tube 25 at the bottom of the extension tube 24 from the flea suction cylinder 22, the extension tube 24 can prevent the fleas from jumping out. In this example, the length of the extension tube 24 is 400 mm, which exceeds the maximum jumping height of the fleas.

[0023] When using the flea suction cylinder 22 to collect dead and living fleas cleaned from the parasitized animals in the glove box 11, the air blowing tube 21 and the flea suction cylinder 22 are placed in the glove box 11, and compressed air is blown into the air blowing tube 21 from the inlet and out from the outlet. After the compressed air passes through the top of the flea suction cylinder 22, suction is generated through the Bernoulli effect, which can absorb the fleas to the bottom of the filter screen at the bottom of the flea suction cylinder 22, making it convenient for the experimenter to collect fleas.

[0024] like Figure 5 As shown, a plug 41 is slidably provided on the sampling box 23, and a driving mechanism 50 (marked on Figure 4 In the figure, after the flea suction cylinder 22 is inserted into the extension tube 24, the flea suction cylinder 22 can drive the driving mechanism 50 to drive the plug 41 to press the outlet of the blowing tube 21 when it is pressed down.

[0025] When transferring the fleas in the flea suction cylinder 22 into the sampling tube 25, first insert the flea suction cylinder 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 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 cylinder 22, and the fleas in the flea suction cylinder 22 are blown into the extension tube 24, and then fall into the sampling tube 25.

[0026] like Figure 6 As shown, the air compressor pipeline is connected to the odor attractant assembly, which can be set on the ground. After the dead and living fleas on the parasitized animals are collected into the sampling tube 25, the experimenter transfers the fleas in the sampling tube 25 to the odor attractant assembly. The odor attractant assembly can attract the fleas to move, separate the dead and living fleas, facilitate the counting of dead and living fleas, and improve the accuracy of the experiment.

[0027] like Figure 6 As shown, the odor attracting component includes a drying tower 31, in which activated carbon is arranged, an 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 a 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 a water bottle 33, the water bottle 33 is used to moisten the gas blown out by the air compressor so that the humidity of the gas is more in line with the habits of fleas, the outlet of the water bottle 33 is connected to an attracting box 34, in which an attracting animal for attracting fleas is placed, and fleas mainly rely on their sense of smell to find the attracting animal to be parasitized, the outlet of the attracting box 34 is connected to the inlet of an insect olfactometer 35, the outlet of the insect olfactometer 35 is connected to the atmosphere, the insect olfactometer is a commonly used experimental device, a device used to observe the response of insects to different olfactory sources, the insect olfactometer usually has multiple inlets, and only one inlet is used in this embodiment.

[0028] The experimenter transfers the fleas in the sampling tube 25 to the outlet of the insect olfactometer 35, and then blows air into the drying tower 31 through an air compressor to supply air to the odor attractant component. The surviving fleas will move to the inlet of the insect olfactometer 35 under the attraction of the attractant animal in the attractant box 34, and the dead fleas will remain at the outlet of the insect olfactometer 35. After the surviving and dead fleas are separated, the fleas will be counted.

[0029] like Figure 7 , 8 As shown, one end of a slide rod 42 is fixed on the plug 41, and the other end of the slide rod 42 is fixed on a driving slider 43. The slide rod 42 is slidably set on the sampling box 23. The driving slider 43 is provided with an inclined groove 44, and a driving round pin 45 is contacted and connected in the inclined groove 44. The driving round pin 45 is fixed on the upper end of a transmission rod 46, and the transmission rod 46 is slidably set outside the sampling box 23.

[0030] The descent of the transmission rod 46 can drive the driving round pin 45 to slide, and then drive the driving round pin 45 and the inclined groove 44 on the driving slider 43 to move relative to each other, and then drive the driving slider 43 to move, thereby driving the slide rod 42 and the plug 41 to slide into the sampling box 23, that is, the descent of the transmission rod 46 can drive the plug 41 to slide, which is convenient for driving the plug 41 to slide.

[0031] like Figure 7 , 9 As shown in Figures 10 and 11, the driving mechanism 50 includes a first driven tooth 52, and a plurality of the first driven teeth 52 are arranged to rise and fall in the extension tube 24. The plurality of first driven teeth 52 are fixed on a first driven sleeve 53, and 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, and 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.

[0032] like Fig.10 , 12 As shown, an input rack 56 is fixed to the first driven sleeve 53, and the input rack 56 is meshedly connected with an input gear 57, and the input gear 57 is rotatably arranged under the sampling box 23, and the input gear 57 can drive the bevel gear set, and the bevel gear set is installed under the sampling box 23, and the bevel gear set can drive the output gear 58, and the output gear 58 is rotatably arranged under the sampling box 23, and the output gear 58 is meshedly connected with an output rack 59, and the upper end of the output rack 59 is fixed to the lower end of the transmission rod 46.

[0033] like Figure 7 , 9 As shown, a driving disc 51 is fixed on the flea suction cylinder 22, and the driving disc 51 can contact the first driven tooth 52.

[0034] The experimenter first extends the flea suction cylinder 22 into the sampling box 23 and aligns it with the extension tube 24 (such as Figure 7 As shown), the flea suction tube 22 is then inserted into the extension tube 24 (as shown Figure 5 As shown), the flea suction cylinder 22 is then pressed down, so that the active disk 51 on the flea suction cylinder 22 drives the first driven tooth 52 to descend, and then drives the first driven sleeve 53 to descend, thereby compressing 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, thereby driving the transmission rod 46 to descend. That is, the experimenter can drive the transmission rod 46 to descend by pressing down the flea suction cylinder 22, which is convenient for driving the transmission rod 46 to descend.

[0035] like Fig.10 , 12 As shown in , 13 and 14, the bevel gear set includes an A bevel gear 60, and the input gear 57 is coaxially fixed with the A bevel gear 60, and the A bevel gear 60 is meshingly connected with the B bevel gear 61, and the B bevel gear 61 is rotatably arranged under the sampling box 23, and the B bevel gear 61 is coaxially fixed with one end of the transmission shaft 64, and the other end of the transmission shaft 64 is coaxially fixed with the C bevel gear 62, and the C bevel gear 62 is meshingly connected with the D bevel gear 63, and the D bevel gear 63 is coaxially fixed on the output gear 58.

[0036] The rotation of the input gear 57 can drive the A bevel gear 60 to rotate, and then drive the B bevel gear 61 to rotate, and then drive the C bevel gear 62 to rotate, and then drive the D bevel gear 63 to rotate, thereby driving the output gear 58 to rotate.

[0037] like Figure 7 , 9 , 10, 15, a first positioning plate 66 is fixed on the flea suction tube 22, and a V-shaped groove is provided on the first positioning plate 66. A plurality of ball plungers 65 are installed in the extension tube 24. The ball plunger 65 is installed at the limit position of the first positioning plate 66 when it is lowered. The ball plunger is a commonly used positioning part. The ball pin inside it is kept extended by a spring. The ball plunger 65 can clamp the first positioning plate 66 (such as Fig.10 as shown).

[0038] When the flea suction tube 22 descends in the extension tube 24 and drives the first positioning plate 66 to descend, the first positioning plate 66 first squeezes the ball plunger 65 to retract the ball pin inside it, and then the flea suction tube 22 and the first positioning plate 66 continue to descend, and the ball pin inside the ball plunger 65 extends out and gets stuck in the V-shaped groove of the first positioning plate 66. The ball plunger 65 can clamp the first positioning plate 66, thereby preventing the first positioning plate 66 from rising under the action of the first return spring 55. The flea suction tube 22 can be conveniently locked by the ball plunger 65 cooperating with the first positioning plate 66.

[0039] The experimenter first inserts the flea absorber 22 into the extension tube 24, and then presses down the flea absorber 22 to drive the transmission rod 46 to descend, and then drives the plug 41 to slide into the sampling box 23, so that the plug 41 presses the outlet of the blowing tube 21. At the same time, the ball plunger 65 clamps the first positioning plate 66 at the extreme position of the flea absorber 22 to lock the flea absorber 22, which is convenient for locking the flea absorber 22 and the experimenter to use the flea absorber 22 to release fleas.

[0040] Working process: After using flea killer drugs on parasitized animals in the glove operation box 11, the dead and living fleas on the parasitized animals are cleaned, and the fleas are sucked using the flea suction cylinder 22 placed in the glove operation box 11. During the suction, 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 cylinder 22, suction is generated through the Bernoulli effect, which can absorb the fleas to the bottom of the flea suction cylinder 22. Then the experimenter transfers the fleas in the flea suction cylinder 22 to 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 separation of the living and dead fleas, the fleas are counted, the flea survival rate is calculated, and the effect of the flea killer drugs is evaluated.

[0041] When transferring fleas into the sampling tube 25, the experimenter first extends the flea suction cylinder 22 into the sampling box 23 and aligns it with the extension tube 24, then inserts the flea suction cylinder 22 into the extension tube 24, and then presses down the flea suction cylinder 22, so that the active disk 51 on the flea suction cylinder 22 drives the first driven tooth 52 to descend, and then drives the first driven sleeve 53 to descend, thereby compressing 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, thereby driving the transmission rod 46 to descend, that is, the descent of the flea suction cylinder 22 can drive the transmission rod 46 to descend, and then drive the plug 41 to slide into the sampling box 23, so that the plug 41 presses the outlet of the blowing tube 21, and at the same time, the ball plunger 65 clamps the first positioning disk 66 at the extreme position of the descent of the flea suction cylinder 22 to achieve locking of the flea suction cylinder 22.

[0042] After the plug 41 compresses the outlet of the air blowing tube 21, 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, thereby realizing the transfer of the fleas.

[0043] Embodiment 2: Figure 16-19 As shown, the driving mechanism 50 includes a retaining frame 73, which is lifted and lowered in the extension tube 24, and a plurality of retaining holes are provided on the retaining frame 73, in each of which a positioning bead 74 is placed, and a second positioning disk 71 is fixed outside the flea suction tube 22, and a V-shaped groove is provided on the second positioning disk 71, and the positioning bead 74 can be stuck in the V-shaped groove of the second positioning disk 71 when it moves toward the center of the second positioning disk 71.

[0044] like Fig.18 , 19 As 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.

[0045] like Fig.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.

[0046] 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 Fig.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). Fig. 20 , 22As 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.

[0047] 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.

[0048] like Fig.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.

[0049] like Fig.21 As shown, a manual reversing valve 82 is fixed in the glove operation box 11 . The manual reversing valve is a common valve for controlling the direction of compressed air. The manual reversing valve 82 can control the extension and retraction of the locking cylinder 81 .

[0050] In this embodiment, the layout and connection method of the compressed air pipeline for the manual reversing valve 82 to control the reversal of the locking cylinder 81 belong to the prior art, so they are not described in detail.

[0051] After the experimenter inserts the flea suction cylinder 22 into the extension tube 24, he 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 cylinder 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 then locking the position of the flea suction cylinder 22. The locking of the flea suction cylinder 22 is more reliable, which is convenient for the experimenter to use the flea suction cylinder 22 to release fleas.

[0052] The remaining technical features are the same as those of the first embodiment.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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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