CN111329613A - Device for killing experimental rabbits - Google Patents
Device for killing experimental rabbits Download PDFInfo
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- CN111329613A CN111329613A CN202010263101.3A CN202010263101A CN111329613A CN 111329613 A CN111329613 A CN 111329613A CN 202010263101 A CN202010263101 A CN 202010263101A CN 111329613 A CN111329613 A CN 111329613A
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- 241000283973 Oryctolagus cuniculus Species 0.000 title claims abstract description 161
- 210000003323 beak Anatomy 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 210000003462 vein Anatomy 0.000 claims description 3
- 208000014674 injury Diseases 0.000 abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract description 2
- 208000012260 Accidental injury Diseases 0.000 abstract 1
- 231100000518 lethal Toxicity 0.000 abstract 1
- 230000001665 lethal effect Effects 0.000 abstract 1
- 210000003739 neck Anatomy 0.000 description 61
- 238000000034 method Methods 0.000 description 18
- 239000003814 drug Substances 0.000 description 7
- 229940079593 drug Drugs 0.000 description 6
- 241001465754 Metazoa Species 0.000 description 3
- 238000010009 beating Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 206010001526 Air embolism Diseases 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 206010013183 Dislocation of vertebra Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 208000034158 bleeding Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000003983 inhalation anesthetic agent Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000004962 physiological condition Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D1/00—Surgical instruments for veterinary use
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Housing For Livestock And Birds (AREA)
- Food-Manufacturing Devices (AREA)
Abstract
The utility model provides a device of experiment rabbit of punishment, including the base plate, the slip table, the handle, the baffle, a pedestal, the connecting rod, the push rod, the butterfly screw, the push rod support, the footboard, the crank, rabbit neck clamp support A, rabbit neck clamp support B, butterfly belt antiskid tooth screw, the slip table is by the gomphosis of guide rail on the base plate, base and rabbit neck clamp support A are by the fix with screw on the base plate, two baffles peg graft in the base plate both sides, the handle, rabbit neck clamp support B, the push rod support is by the fix with screw on the slip table, the connecting rod is connected push rod and crank, the crank is by the hub connection on the base, base and push rod support overlap on the push rod in proper order, butterfly screw connection is on the push rod support, the footboard cover is on the crank, two rabbit neck clamps, by butterfly belt antiskid tooth screw connection respectively on rabbit neck clamp support A. The invention can cause the cervical dislocation of the experimental rabbit to be instantly lethal, shorten the death time, eliminate unnecessary pain and fear of the experimental rabbit, and avoid accidental injury or self-injury of experimenters.
Description
Technical Field
The invention belongs to the technical field of animal experiments, and particularly relates to a device for killing experimental rabbits.
Background
At present, the method for killing experimental rabbits in the research of medical and biological experiments is mainly divided into two categories, one is drug killing, and comprises injection of anesthetic or toxic preparation or inhalation of excessive volatile anesthetic through respiratory tract, so that the nerve center of the experimental rabbits is over-inhibited and is killed by hypoxia. The other is to kill the disease by a physical and mechanical method, including the first, a large amount of air is injected through the ear margin vein, so that air embolism is formed in the heart and the lung to cause circulatory obstruction, and shock is killed; secondly, the skull of the rabbit is hit by violence, and the brain is damaged and died; thirdly, cutting off the aorta to cause acute hemorrhage and death due to massive blood loss. Although the two methods can kill experimental rabbits, the practical operation still has some defects:
the drug sacrifice method has the advantages that the experimental rabbits undergo a long death process, the efficiency is low, the dosage of the drug cannot be accurately mastered due to the difference of physiological conditions among the experimental rabbits, the drug is easy to be overdosed in practice to cause unnecessary waste, the cost is increased, even the environment is polluted, or the drug is insufficient to cause incomplete sacrifice, so that the experimental rabbits suffer from death pain for a longer time. In addition, the drug sacrifice method has its limitation, and the medicine will inevitably affect the physiology, pathology, tissue structure, cell morphology, etc. of the experimental rabbit, so that the method is not suitable for the experimental project which needs to research the indexes of the dead body of the experimental rabbit.
Although the physical mechanical sacrifice method has a wide application range, the experimental rabbits suffer from huge physical pain and die, and in addition, the experimental rabbits are repeatedly punctured and hit in the actual operation, thereby causing great pain to the psychology of the experimental rabbits. Specifically, the air embolism method is easy to cause the condition of failure of first venipuncture for experimental rabbits with small body size and unclear vein dissection, and is easy to cause the conditions of insufficient air quantity injected once and incomplete sacrifice for experimental rabbits with strong body size, and the experimental rabbits need to be punctured for many times in both the two conditions so as to be sacrificed; the violent beating method can kill the dead by beating for many times due to insufficient strength of an operator or inaccurate control of beating positions. In addition, in order to avoid struggling of the experimental rabbit during the physical and mechanical sacrifice, the experimental rabbit needs to be fixed on a certain platform by a rope, so that the fear of the experimental rabbit is increased undoubtedly, and the potential safety hazard exists, so that the experimental rabbit is generally large in size and large in strength, such as the upper limb strength of an experimental worker is insufficient, the experimental worker is not firmly controlled, and the experimental rabbit is easily injured by the experimental rabbit, or is self-injured in the operations of sharp needle puncture, sharp knife cutting, blunt instrument striking and the like.
In conclusion, the existing experimental rabbit sacrifice methods have defects of different degrees and have ethical requirements for dishumanizing experimental animals. Secondly, the experimenters need to be trained to practice the killing technique of the experimental rabbits, and the experimenters need to be trained for a long time, so that the psychological influence of the experimenters can be generated after the animals suffering from violence, bloody smell and pain are killed for many times.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a device for killing experimental rabbits, which is used for rapidly, efficiently and safely killing the experimental rabbits, so that the death pain of the experimental rabbits is reduced as much as possible, the injury risk of experimenters is reduced, and the operation of killing the experimental rabbits better meets the humanistic ethical requirements.
In order to achieve the purpose, the invention adopts the technical scheme that:
a device for killing experimental rabbits comprises a base plate, a sliding table, a handle, a partition plate, a base, a connecting rod, a push rod, a butterfly screw, a push rod support, a pedal, a crank, a rabbit neck clamp support A, a rabbit neck clamp support B and a butterfly screw with anti-slip teeth, wherein the sliding table is embedded into a dovetail groove on the base plate through a dovetail rail at the bottom for coordination, the sliding table can slide on the base plate along the direction of the dovetail rail, the handle is fixed with a threaded hole E at the front end of the sliding table through a through hole B at the foot of the handle by a screw, the partition plate is divided into two blocks, the two blocks are respectively inserted into mortise holes at the left side and the right side of the top surface of the base plate through tenon protrusions at the bottom to realize the combination of the two blocks, the base is fixed on a threaded hole B on a base mounting platform at one side of the base plate by the screw, one end, the through hole K on the connecting rod is connected with the through hole J at the lower end of the crank rod by a shaft, the other end of the connecting rod is inserted into the notch C at the tail end of the push rod, the through hole L on the connecting rod is connected with the through hole M at the tail end of the push rod by the shaft, a butterfly screw is connected with the push rod bracket by the threaded hole H on the push rod bracket, the push rod bracket is sleeved on the push rod by a sleeve at the upper part, the screw is fixed on the threaded hole D on the side wall of the sliding table by the through hole H on the bottom plate of the push rod bracket, the pedal is sleeved on the crank shaft by the shaft tube at the bottom surface, the baffle ring is clamped in the annular groove at the outer end of the crank shaft to prevent the pedal from axially dislocating, the through hole I on the crank rod is connected with the through hole F on the base by the shaft after the crank rod is inserted into the notch A on the base, and two rabbit necks are clamped on the threaded holes C fixed in the rectangular groove B on the sliding table, and the two butterfly-shaped screws with the anti-skidding teeth are respectively fixed on the threaded holes F on the cross beam of the rabbit neck clamp support A and the threaded holes G on the cross beam of the rabbit neck clamp support B through the through holes G in the middle of the rabbit neck clamp.
The base plate major structure is the rectangle, and one side is equipped with the rectangle base mounting platform who takes two screw hole B, 1/3 division has one to walk the dovetail of going along its major axis direction in the front of the top surface of base plate, and the rear end both sides of dovetail respectively have a rectangular channel A, rectangular channel A bottom respectively opens there are two screw hole A, 2/3 both sides respectively open behind the top surface of base plate have two mortise holes, respectively open a through-hole A in the preceding outside of two mortise holes in front and the back outside of two mortise holes in rear portion, through-hole A can be used for fixed base plate to a certain operation platform or subaerial.
The slip table is the cuboid, and is the 1/3 of base plate length with the base plate width, is equipped with a flute profile rabbit in the middle of the roof and eats the dish, and roof rear portion both sides respectively open there is a rectangular channel B, rectangular channel B bottom respectively opens there are two screw hole C, open at one side lateral wall rear portion of slip table has two screw hole D along horizontal line distribution, and the antetheca is opened there are two screw hole E, and the diapire is equipped with one and runs through the forked tail rail of diapire minor axis.
The handle is of a structure like a Chinese character 'ji', the two tail ends of the handle are feet which are rectangular, a through hole B is formed in the center of each foot, the two partition plates are identical in structure, the main body structure of each partition plate is rectangular, and the bottom wall is provided with two tenon protrusions distributed along the long axis of the bottom wall.
Base bottom one side is equipped with the level to outstanding and take the rectangle base bottom plate of two through-holes E, and the upper portion front end is the tubulose push rod stand pipe of circle, and rear portion is opened in the upper portion has notch A about running through the base, and the rear portion upper end is protruding and has through-hole F's pedestal for being trapezoidal appearance, and rearmost end middle part is horizontal cylindricality gag lever post for the biggest back position of rotating of restriction articulate, the connecting rod is fillet rectangle structure, and open one end has through-hole K, and open the other end has through-hole L, the push rod main part is cylindrical structure, and its front end has circular stopper, and open terminal central authorities has notch C, open notch C's both sides has through-hole M.
The push rod support comprises push rod support bottom plate with two through holes H and a circular tube-shaped sleeve on the upper portion, a threaded hole H is formed in the side wall of the sleeve, the axis of the threaded hole H is perpendicular to the push rod support bottom plate and communicated with the inner wall of the sleeve, the pedal comprises a pedal panel with anti-skidding threads on the upper portion and a pedal shaft tube with a short shaft penetrating through the bottom of the pedal panel, and the crank is of a shape of being a cylinder
The crank shaft is provided with an annular groove at the outer end, the tail end of the crank shaft is sequentially provided with a through hole I and a notch B from top to bottom, through holes J are formed in two sides of the notch B, and the axes of the through holes I and the through holes J are parallel to the crank shaft.
The rabbit neck clamp comprises two bilaterally symmetrical parts, wherein each part comprises an arc-shaped beak part, a straight-bar-shaped handle part and a through hole G in the middle part, the two parts are combined together through butterfly-shaped anti-skidding tooth screws through the through holes G in the middle parts of the beak part and the straight-bar-shaped handle part, and the rabbit neck clamp is divided into three types, namely a large type, a middle type and a small type according to different sizes of the beak part so as to meet the requirement of clamping experimental rabbits with different body types.
Rabbit neck clamp support A is "door" font structure, including the crossbeam at foot, side post, the top of two bottoms, the foot is the rectangle, and it has two through-holes C respectively to open above-mentioned, there is a breach in the middle part of crossbeam, the breach size can satisfy rabbit neck clamp and can reach maximum opening as appropriate, breach central authorities open threaded hole F.
Rabbit neck clamp support B is "door" font structure, the crossbeam at foot, side post, top including two bottoms, the foot is the rectangle, and it has two through-holes D respectively to open above-mentioned, the side post is than the thickness of a short slip table of rabbit neck clamp support A side post, there is a breach at the middle part of crossbeam, the breach size is suitable in order to satisfy the rabbit neck clamp can reach the maximum aperture of opening, breach central authorities open threaded hole G.
The experimental rabbit sacrifice device has the advantages that the experimental rabbit sacrifice device can conveniently, quickly, efficiently and safely sacrifice experimental rabbits, fully reduces death pain and fear of the experimental rabbits, and reduces the risk of injury of experimental personnel. The technical problems of animal welfare and experimental personnel protection are solved by a more humane method. The concrete points are as follows:
firstly, the two clapboards arranged on the base plate can effectively prevent rabbit feet from hurting experimenters and can form a narrower channel, so that the experimental rabbits can be induced to automatically climb into the device through the channel surrounded by the clapboards by utilizing the habit that the rabbits like to drill holes and the rabbit food placed in the rabbit food tray, the fear that the experimental rabbits are forcibly gripped and fixed in the prior art is reduced, and meanwhile, the safety of the experimental rabbits can be improved by the clapboards attached to the two sides of the rabbit body.
Secondly, the rabbit neck clamp can clamp and fix the rabbit neck in a quick closing mode without influencing feeding of an experimental rabbit, and is more convenient and quick compared with the existing rope binding and fixing method. Compared with the existing sacrifice method, the sacrifice phase is instantly achieved when the experimental rabbit eats, the sacrifice method is quick and efficient, struggle pain caused by fear is avoided, the sacrifice effect is exact, repeated damage to the experimental rabbit is avoided, and extra pain such as trauma and bleeding is not caused to the experimental rabbit.
Thirdly, the force is exerted by using the lower limbs, the force is more sufficient, and the force transmission device, namely the crank rod, in the device can multiply the effect of the acting force by utilizing the lever principle, so that the experimental rabbit can be killed quickly, effectively and safely for operators with small force.
Finally, compared with the existing experimental rabbit killing method, the experimental rabbit killing method is simple in usage, low in technical requirement, easy to master, free of special training or repeated practice, and capable of avoiding excessive bloody smell and violence scenes which need to be experienced by an experimenter for mastering the killing skill in the existing experimental rabbit killing method.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a substrate;
FIG. 3 is a schematic structural view of a slide table;
FIG. 4 is a schematic view of the pull handle;
FIG. 5 is a schematic view of the structure of the separator;
FIG. 6 is a schematic structural view of a base;
FIG. 7 is a schematic view of a connecting rod;
FIG. 8 is a schematic structural view of the push rod;
FIG. 9 is a schematic structural view of the push rod bracket;
FIG. 10 is a schematic view of the pedal structure;
FIG. 11 is a schematic view of the crank structure;
FIG. 12 is a schematic view of the rabbit neck clamp;
FIG. 13 is a schematic structural view of a rabbit neck clamp support A;
FIG. 14 is a schematic structural view of a rabbit neck clamp support B;
wherein, 1 is a substrate; 2 is a sliding table; 3 is a handle; 4 is a clapboard; 5 is a base; 6 is a connecting rod; 7 is a push rod; 8 is a butterfly screw; 9 is a push rod bracket; 10 is a pedal; 11 is a crank; 12 is a rabbit neck clamp; 13 is a rabbit neck clamp bracket A; 14 is a rabbit neck clamp bracket B; 15, a butterfly screw with anti-skid teeth; 16 is a dovetail groove; 17 is a rectangular groove A; 18 is a threaded hole A; 19 is a mortise; 20 is a base mounting platform; 21 is a threaded hole B; 22 is a through hole A; 23 is rabbit dish; 24 rectangular groove B; 25 is a threaded hole C; 26 is a threaded hole D; 27 is a threaded hole E; 28 is a dovetail rail; 29 is a handle foot part; 30 is a through hole B; 31 is a tenon; 32 is the foot of the rabbit neck clamp bracket A; 33 is a through hole C; 34 is a side column of a rabbit neck clamp bracket A; 35 is a cross beam of a rabbit neck clamp bracket A; 36 is a cross beam notch of a rabbit neck clamp bracket A; 37 is a threaded hole F; 38 is the foot of the rabbit neck clamp bracket B; 39 is a through hole D; 40 is a side column of a rabbit neck clamp bracket B; 41 is a cross beam of a rabbit neck clamp bracket B; 42 is a gap of a cross beam of the rabbit neck clamp bracket B; 43 is a threaded hole G; base floor 44; 45 is a through hole E; 46 is a push rod guide tube; 47 is a shaft bracket; 48 is a through hole F; 49 is a limit rod; 50 is a notch A; 51 is a rabbit neck clamp beak; 52 is a rabbit neck clamp handle; 53 through holes G; 54 is a bottom plate of the push rod bracket; 55 is a through hole H; 56 is a threaded hole H; 57 is a sleeve; 58 is a pedal shaft tube; 59 is a pedal panel; 60 is a crankshaft; 61 is a ring groove; 62 is a crank rod; 63 is a through hole I; 64 is a notch B; 65 is a through hole J; 66 is a through hole K; 67 is a through hole L; 68 is a notch C; 69 is a through hole M; 70 is a stopper.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in FIG. 1, a device for killing experimental rabbits comprises a base plate 1, a sliding table 2, a handle 3, a partition plate 4, a base 5, a connecting rod 6, a push rod 7, a butterfly screw 8, a push rod bracket 9, a pedal 10, a crank 11, a rabbit neck clamp 12, a rabbit neck clamp bracket A13, a rabbit neck clamp bracket B14 and a butterfly screw 15 with anti-slip teeth, and is characterized in that after the sliding table 2 is embedded into a dovetail groove 16 on the base plate 1 through a dovetail rail 28 at the bottom for coordination, the sliding table 2 can slide on the base plate 5 along the direction of the dovetail rail 28, the handle 3 is fixed with a threaded hole E27 at the front end of the sliding table 2 through a through hole B30 of a foot 29 of the screw, the partition plates 4 are two in total and are respectively inserted into mortise holes 19 at the left and right sides of the top surface of the base plate 1 through tenon protrusions 31 at the bottom to realize the combination of the two, the base 5 is fixed on a threaded hole B21 on a base mounting platform 20 at one, after one end of the connecting rod 6 is inserted into a notch B64 at the lower end of the crank 11, a through hole K66 on the connecting rod 6 is connected with a through hole J65 at the lower end of the crank rod 62 by a shaft, after the other end is inserted into a notch C68 at the tail end of the push rod 7, a through hole L67 on the connecting rod 6 is connected with a through hole M69 at the tail end of the push rod 7 by a shaft, a butterfly screw 8 is connected with a push rod bracket 9 by a threaded hole H56 on the push rod bracket 9, the push rod bracket 9 is sleeved on the push rod 7 by a sleeve 57 at the upper part and is fixed on a threaded hole D26 on the side wall of the sliding table 2 by a screw by a through hole H55 on a bottom plate 54, after the pedal 10 is sleeved on the crank shaft 60 by a shaft tube 58 at the bottom, a retainer ring is clamped in an annular groove 61 at the outer end of the crank shaft 60 to prevent the pedal 10 from axially dislocati, the rabbit neck clamp bracket A is fixed on a threaded hole A18 in a rectangular groove A17 on the base plate 1 through a through hole C33 on a foot part 32 of the rabbit neck clamp bracket A by a screw, the rabbit neck clamp bracket B is fixed on a threaded hole C25 in a rectangular groove B24 on the sliding table 2 through a through hole D39 on a foot part 38 of the rabbit neck clamp bracket B by a screw, the rabbit neck clamps 12 are two in number, and two butterfly-shaped screws with anti-skidding teeth 15 are respectively fixed on a threaded hole F37 on a cross beam 35 of the rabbit neck clamp bracket A and a threaded hole G43 on a cross beam 41 of the rabbit neck clamp bracket B through a through hole G53 in the middle of the rabbit neck clamp.
As shown in fig. 2, the main body of the base plate 1 has a rectangular structure, one side of the base plate is provided with a rectangular base mounting platform 20 with two threaded holes B21, the front 1/3 of the top surface of the base plate 1 is provided with a dovetail groove 16 running along the long axis direction of the base plate, two sides of the rear end of the dovetail groove 16 are respectively provided with a rectangular groove a17, the bottom of the rectangular groove a17 is respectively provided with two threaded holes a18, two sides of the rear 2/3 of the top surface of the base plate 1 are respectively provided with two mortise holes 19, the front outer sides of the front two mortise holes 19 and the rear outer sides of the rear two mortise holes 19 are respectively provided with a through hole a22, and the through hole a22 can be used for fixing the base plate 1 to a certain operation platform.
As shown in fig. 3, slip table 2 is the cuboid, with base plate 1 with wide, for 1/3 of base plate 1 length, is equipped with a flute profile rabbit food dish 23 in the middle of the roof, and roof rear portion both sides are respectively opened and are had a rectangular channel B24, rectangular channel B24 bottom is respectively opened has two screw hole C25, one side lateral wall rear portion of slip table 2 is opened has two screw hole D26 that distribute along the horizontal line, and the antetheca is opened and is had two screw hole E27, and the diapire is equipped with a forked tail rail 28 that runs through the diapire minor axis.
As shown in fig. 4, the handle 3 has a "zigzag" structure, and the two ends are provided with the feet 29, and the feet 29 are rectangular and each have a through hole B30 at the center thereof.
As shown in FIG. 5, the main structure of the partition board 4 is rectangular, and two tenon protrusions 31 are arranged on the bottom wall and distributed along the long axis of the bottom wall.
As shown in fig. 6, a rectangular bottom plate 44 protruding horizontally and having two through holes E45 is disposed on one side of the bottom of the base 5, the front end of the upper portion is a tubular push rod guide tube 46, the middle rear portion of the upper portion is provided with a notch A50 penetrating through the upper portion and the lower portion of the base 5, the upper end of the rear portion is a shaft bracket 47 protruding like a trapezoid and having a through hole F48, and the middle portion of the rearmost end is a transverse cylindrical limiting rod 49 for limiting the maximum rear rotation position of the crank 11.
As shown in fig. 7, the connecting rod 6 has a round-corner rectangular structure, and has a through hole K66 at one end and a through hole L67 at the other end.
As shown in fig. 8, the main body of the push rod 7 is a cylindrical structure, the front end of the main body is provided with a circular stopper 70, the center of the tail end is provided with a notch C68, and both sides of the notch C68 are provided with through holes M69.
As shown in FIG. 9, the push rod support 9 is composed of a bottom plate 54 with a through hole H55 and an upper round tubular sleeve 57, the side wall of the sleeve 57 is provided with a threaded hole H56, and the axis of the threaded hole H56 is perpendicular to the bottom plate 54 of the push rod support and is communicated with the inner wall of the sleeve 57.
As shown in FIG. 10, the pedal 10 includes a panel 59 with an upper anti-slip thread and a pedal shaft tube 58 with a bottom penetrating through a short shaft of the panel.
As shown in fig. 11, the crank 11 is shaped as
The crank shaft 60 is provided with an annular groove 61 at the outer end, the tail end of the crank rod 62 is provided with a through hole I63 and a notch B64 from top to bottom in sequence, two sides of the notch B64 are provided with a through hole J65, and the axes of the through hole I63 and the through hole J65 are parallel to the crank shaft 60.
As shown in fig. 12, the rabbit neck clamp 12 includes an arc-shaped beak part 51, a straight handle part 52 and a middle through hole G53, and the rabbit neck clamp 12 is divided into three types, namely a large type, a middle type and a small type according to the size of the beak part 51 so as to satisfy the requirement of holding experimental rabbits with different body types.
As shown in fig. 13, the rabbit neck clamp support a13 is in a "door" shape, and includes two bottom feet 32, two side pillars 34, and a top beam 35, where the feet 32 are rectangular, and two through holes C33 are respectively formed on the feet 32, a notch 36 is formed in the middle of the beam 35, the size of the notch 36 is suitable for the maximum opening of the rabbit neck clamp 12, and a threaded hole F37 is formed in the center of the notch 36.
As shown in fig. 14, rabbit neck clamp support B14 is "door" font structure, and including foot 38, side pillar 40, the crossbeam 41 at top of two bottoms, foot 38 is the rectangle, and above-mentioned each division has two through-holes D39, side pillar 40 is than the thickness of a slip table 2 of side pillar 34 of rabbit neck clamp support a13, there is a breach 42 in the middle part of crossbeam 41, the size of breach 42 is suitable in order to satisfy rabbit neck clamp 12 can reach the maximum opening degree, open a screw hole G43 in the middle of breach 42.
In the specific implementation, two rabbit neck clamps with proper sizes are selected according to the type of an experimental rabbit to be killed and are respectively installed on corresponding positions in the device, then the sliding table is adjusted to the last position where the sliding table can slide on the base plate, the two rabbit neck clamps are close to each other, the pedal is adjusted to the highest position, finally the two rabbit neck clamps are opened to the maximum opening position of the clamp beaks and then the butterfly-shaped anti-slip tooth screws are slightly rotated, so that the clamp beaks can keep the maximum opening position and do not automatically close due to the action of gravity, then rabbit food induction experimental rabbits are placed in the rabbit food tray and drilled through the opened rabbit neck clamps through a channel surrounded by the partition plate to eat, when the experimental rabbits eat the food, the beak parts of the two rabbit neck clamps are slightly closed by operating the clamp handles of the two rabbit neck clamps until the rabbit neck is obviously clamped, then the two butterfly-shaped anti-slip tooth screws are quickly tightened, then the two rabbit neck clamps are quickly pulled forwards with force by one hand, until the rabbit neck is straightened and the rabbit neck clamp beak no longer slides on the rabbit neck, the butterfly screw on the push rod support is quickly screwed down by the other hand, the push rod is locked on the push rod support, then, the pedal is quickly and forcibly stepped down in a back direction of the experimental rabbit, the pedal drives the crank shaft to move downwards, the tail end of the crank rod is caused to rise, the shaft connecting part of the crank rod and the connecting rod is quickly changed into a straightened state from a bent state, the push rod is forced to drive the sliding table to move forwards rapidly, and relative displacement is generated between the two clamps clamped at two ends of the experimental rabbit neck, so that the experimental rabbit cervical vertebra dislocation is instantly dead.
Claims (9)
1. A device for killing experimental rabbits is characterized by comprising a base plate (1), a sliding table (2), a handle (3), a partition plate (4), a base (5), a connecting rod (6), a push rod (7), a butterfly screw (8), a push rod bracket (9), a pedal (10), a crank (11), a rabbit neck clamp (12), a rabbit neck clamp bracket A (13), a rabbit neck clamp bracket B (14) and a butterfly screw with anti-slip teeth (15), wherein the sliding table (2) can slide on the base plate (1) along the direction of a dovetail rail (28) after being embedded into a dovetail groove (16) on the base plate (1) for coordination through the dovetail rail (28) at the bottom, the handle (3) is fixed with a threaded hole E (27) at the front end of the sliding table (2) through a through hole B (30) of a foot (29) of the handle by a screw, the two partition plates (4) are inserted into mortise holes (19) on the left side and the right side of the top surface of the base plate (1) through tenon protrusions (31) at the bottom respectively to realize the combination of the two partition plates, the base (5) is fixed on a threaded hole B (21) on a base mounting platform (20) on one side of the base plate (1) through a screw via a through hole E (45) on a base bottom plate (44), after one end of the connecting rod (6) is inserted into a notch B (64) at the tail end of the crank rod (62), a through hole K (66) on the connecting rod (6) is connected with a through hole J (65) at the lower end of the crank rod (62) through a shaft, after the other end of the connecting rod (6) is inserted into a notch C (68) at the tail end of the push rod (7), a through hole L (67) on the connecting rod (6) is connected with a through hole M (69) at the tail end of the push rod (7) through a shaft, and the butterfly, the utility model discloses a rabbit neck clamp, including push rod support (9), footboard (10), axle tube (58), push rod support (9) and push rod support bottom plate (54), through-hole H (55) on through the upper portion cover back on push rod (7), fix on screw hole D (26) of slip table (2) lateral wall by the screw through-hole H (55) on push rod support bottom plate (54), back on footboard (10) is overlapped on crank axle (60) through axle tube (58) of bottom surface, block in annular groove (61) of crank axle (60) outer end with the retaining ring card, prevent footboard (10) axial dislocation, behind notch A (50) on crank rod (62) inserted base (5), with the axle with through-hole I (63) on crank rod (62) and through-hole F (48) on base (5) link together, rabbit neck clamp support A (13) is fixed on screw hole A (18) in rectangular groove A (17) on base plate (1) through screw through-hole D (39) on its foot (38) by the screw, fix on screw hole C (25) in rectangular channel B (24) on slip table (2), rabbit neck clamp (12) totally two, clamp through the through-hole G (53) in middle part by two butterfly-shaped area antiskid tooth screws (15) through the rabbit neck, fix respectively on screw hole F (37) on rabbit neck clamp support A crossbeam (35) and on screw hole G (43) on rabbit neck clamp support B crossbeam (41).
2. The device for killing laboratory rabbits as claimed in claim 1, wherein the main structure of the base plate (1) is rectangular, one side of the base plate is provided with a rectangular base mounting platform (20) with two threaded holes B (21), the front 1/3 of the top surface of the base plate (1) is provided with a dovetail groove (16) running along the long axis direction of the base plate, two sides of the rear end of the dovetail groove (16) are respectively provided with a rectangular groove a (17), the bottom of the rectangular groove a (17) is respectively provided with two threaded holes a (18), two sides of the rear 2/3 of the top surface of the base plate (1) are respectively provided with two mortise holes (19), the front outer sides of the front two mortise holes (19) and the rear outer sides of the rear two mortise holes (19) are respectively provided with a through hole a (22), and the through holes a (22) can be used for fixing the base plate (1) to an operation platform or the ground.
3. The device for killing experimental rabbits as claimed in claim 1, wherein the sliding platform (2) is a cuboid, has the same width as the base plate (1), and is 1/3 of the length of the base plate (1), a groove-shaped rabbit feeding tray (23) is arranged in the middle of the top wall, a rectangular groove B (24) is respectively arranged on each side of the rear part of the top wall, two threaded holes C (25) are respectively arranged at the bottom of the rectangular groove B (24), two threaded holes D (26) distributed along a horizontal line are arranged on the rear part of the side wall on one side of the sliding platform (2), two threaded holes E (27) are arranged on the front wall, and the bottom wall is provided with a dovetail rail (28) penetrating through the short axis of the bottom wall.
4. A device for killing laboratory rabbits as claimed in claim 1, characterized in that the handle (3) is of a "n" shape, the two ends of which are feet (29), the feet (29) are rectangular, each of which has a through hole B (30) in the center, the partition plates (4) share two identical pieces, the main body of which is rectangular, and the bottom wall has two tenons (31) extending along the long axis of the bottom wall.
5. The device for killing experimental rabbits as claimed in claim 1, wherein one side of the bottom of the base (5) is provided with a rectangular base bottom plate (44) which protrudes horizontally and has two through holes E (45), the front end of the upper part is a push rod guide tube (46) in a circular tube shape, the middle and rear part of the upper part is provided with a notch A (50) which penetrates through the base (5) from top to bottom, the upper end of the rear part is a shaft bracket (47) which is convex in a trapezoidal shape and has a through hole F (48), the middle part of the rearmost end is a transverse cylindrical limiting rod (49) for limiting the maximum rear rotation position of the crank (11), the connecting rod (6) is in a rounded rectangular structure, one end of the connecting rod is provided with a through hole K (66), the other end of the connecting rod is provided with a through hole L (67), the main body of the push rod (7) is in a cylindrical structure, the front end of the push rod is provided with a circular stopper (70, the butterfly screw (8) is a common commercially available butterfly screw.
6. A device for killing laboratory rabbits as claimed in claim 1, wherein the push rod supporter (9) is composed of a push rod supporter bottom plate (54) with two through holes H (55) and a circular tube-shaped sleeve (57) at the upper part, the side wall of the sleeve (57) is provided with a threaded hole H (56), the axis of the threaded hole H (56) is perpendicular to the push rod supporter bottom plate (54) and is communicated with the inner wall of the sleeve (57), the pedal (10) comprises a pedal panel (59) with anti-skid veins at the upper part and a pedal shaft tube (58) with a short axis penetrating through the panel at the bottom part, the crank (11) is in the shape of a crank shaft
The crank shaft structure comprises a crank shaft (60) and a crank rod (62) which are perpendicular to each other, an annular groove (61) is formed in the outer end of the crank shaft (60), a through hole I (63) and a notch B (64) are sequentially formed in the tail end of the crank rod (62) from top to bottom, through holes J (65) are formed in two sides of the notch B (64), and long axes of the through hole I (63) and the through hole J (65) are parallel to the crank shaft (60).
7. The device for killing experimental rabbits as set forth in claim 1, wherein the rabbit neck clamp (12) comprises two bilaterally symmetrical parts, each of which comprises an arc-shaped beak part (51), a straight bar-shaped handle part (52) and a middle through hole G (53), the two parts are combined together by a butterfly-shaped anti-slip tooth screw (15) through the middle through holes G (53), the butterfly-shaped anti-slip tooth screw (15) is a common commercially available butterfly-shaped anti-slip tooth screw, and the rabbit neck clamp (12) is divided into three models, namely a large model, a middle model and a small model according to the size of the beak part (51) so as to clamp experimental rabbits with different body sizes.
8. The device for killing experimental rabbits as claimed in claim 1, wherein the rabbit neck clamp support a (13) is of a "door" shape and comprises two bottom feet (32), side pillars (34) and a top beam (35), the feet (32) are rectangular, two through holes C (33) are formed in the upper surfaces of the feet, a gap (36) is formed in the middle of the beam (35), the gap (36) is sized to meet the requirement that the rabbit neck clamp (12) can reach the maximum opening degree, and a threaded hole F (37) is formed in the center of the gap (36).
9. The device for killing experimental rabbits as claimed in claim 1, wherein the rabbit neck clamp support B (14) is of a structure like a Chinese character 'men', and comprises foot parts (38) at two bottom ends, side columns (40) and a cross beam (41) at the top, the foot parts (38) are rectangular, and are respectively provided with two through holes D (39), the side columns (40) are shorter than the side columns (34) of the rabbit neck clamp support a (13) by the thickness of one sliding table (2), a notch (42) is formed in the middle of the cross beam (41), the size of the notch (42) is suitable for meeting the requirement that the rabbit neck clamp (12) can reach the maximum opening degree, and a threaded hole G (43) is formed in the center of the notch (42).
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| CN202010263101.3A CN111329613B (en) | 2020-03-29 | 2020-03-29 | Device for killing experimental rabbits |
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| CN202010263101.3A CN111329613B (en) | 2020-03-29 | 2020-03-29 | Device for killing experimental rabbits |
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| CN111329613B CN111329613B (en) | 2024-05-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116138918A (en) * | 2023-04-07 | 2023-05-23 | 北京百奥兴科生物科技有限公司 | Animal ear swelling experimental device |
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| CN212940055U (en) * | 2020-03-29 | 2021-04-13 | 商丘医学高等专科学校 | Device for killing experimental rabbits |
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| GB243872A (en) * | 1924-10-25 | 1925-12-10 | Albert Barnes | Improved apparatus for instantly killing rabbits, hares and the like animals |
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| US20100105305A1 (en) * | 2008-10-27 | 2010-04-29 | Salvatore George Pizzurro | Rabbit and poultry cervical vertebral dislocation apparatus |
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| CN116138918A (en) * | 2023-04-07 | 2023-05-23 | 北京百奥兴科生物科技有限公司 | Animal ear swelling experimental device |
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| CN111329613B (en) | 2024-05-17 |
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