CN112616693B - Medical inbred line pig limit is bred fence more - Google Patents
Medical inbred line pig limit is bred fence more Download PDFInfo
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- CN112616693B CN112616693B CN202011333962.0A CN202011333962A CN112616693B CN 112616693 B CN112616693 B CN 112616693B CN 202011333962 A CN202011333962 A CN 202011333962A CN 112616693 B CN112616693 B CN 112616693B
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- 102000009151 Luteinizing Hormone Human genes 0.000 description 1
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- 229940011871 estrogen Drugs 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/02—Pigsties; Dog-kennels; Rabbit-hutches or the like
- A01K1/0209—Feeding pens for pigs or cattle
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- Life Sciences & Earth Sciences (AREA)
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- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Housing For Livestock And Birds (AREA)
Abstract
The invention relates to a medical inbred line pig crossing-limiting breeding fence, and belongs to the technical field of pig breeding. The anti-bouncing box comprises a fence and a sunshade, wherein a groove is formed in the ground along the fence on the inner side of the fence, an anti-bouncing box body is laid in the groove, a movable cover plate capable of moving up and down is arranged in the anti-bouncing box body, and a reset spring is arranged in the middle of the bottom surface of the movable cover plate. The movable cover plate capable of sinking is arranged at the pig jumping-off part in the inbred line pig breeding fence, so that the instant explosive force of the pigs during jumping-off is damaged, the pigs can not effectively jump, the inbred line pigs are prevented from jumping out by crossing the fence, the injuries, pedigree errors and the inbreeding without pedigree record caused by the inbred line pig fence are avoided, and the pure pedigree and ordered successive breeding process of the inbred line are effectively ensured.
Description
Technical Field
The invention belongs to the technical field of pig breeding, and particularly relates to a medical inbred line pig crossing-limiting breeding fence.
Background
The inbred line swinery, especially the high inbred line, mainly adopt two kinds of modes of holomorphic and parental mating to carry on the reproduction, must have strict pedigree record, its raising, seed retaining, mating mode, etc. are different from commercialization swinery, the reason for doing so is mainly different from the use of two kinds of pigs, commercialization swinery mainly offers the edible pork for human, the focus is growth rate, meat yield, lean meat percentage and feed-meat ratio, etc. of the pig; the use of inbred herds is medical and mainly matches the major health problems of humans, including as donors for experimental animals, model organisms and porcine-human xenogeneic organ transplants.
At present, artificial insemination modes of one male sow and a plurality of female sows are mostly adopted for commercial swinery, but the inbred line swinery needs to adopt the traditional inbred mode, and all male sows and female pigs are generally reserved for breeding. Inbred line swinery is difficult to breed, the breeding scale is much smaller than that of commercial swinery, and generally, boars and sows are bred in the same large colony house, and only the slaughter management and strict record are carried out.
Inbred line pigs are mostly bred from small local pig varieties and generally come from remote frontier, such as Banna miniature pig inbred lines, and are bred from Yunnan small ear pigs of Lahu nationality village closed in West double Banna region of Yunnan province; the Wuzhishan pig inbred line is bred by Wuzhishan pigs in Wuzhishan City of Hainan province. The miniature pig strains are from excellent local breeds bred under specific ecological conditions, the origin is in a traffic-enclosed and remote mountain area, and part of the ancestry is from wild pigs, so that the miniature pig strains have good jumping and movement abilities.
The reproductive capacity of inbred line pig groups is relatively low, and compared with the high-yield litter size of Taihu lake pigs and European and American Changbai, Dabai and Duroc commercial lines, the phenomenon that one end is produced at the beginning and 3-5 ends are produced is common for inbred line miniature pigs. In such an inbred small pig farm of small size, but in the same house, but in different stalls of the male and female, once the boars and sows jump out of the pens, they are mated with other non-pedigree designated pigs. The system is impure and disordered, and the possibility of injury when crossing the fence can occur, so that the system can be hung on the fence and can not jump out or return, forelimbs or hind limbs are clamped in the gap of the fence and are difficult to draw out, the genitals of the boars are scratched, and the like.
However, the oestrus of the sows is stimulated by hormones such as estrogen, luteinizing hormone, progesterone, follicle stimulating hormone, prostaglandin and the like, the sows are scorched and uneasy, do not eat and drink water, and have the actions of climbing walls, arching, holding up grass, jumping from stalls and the like, the boars can smell pheromone smell released by the oestrus sows, and the boars and the sows can jump out of stalls to seek mating, so that the inbred line pig group spectrum is disordered. When a sow without mating records is pregnant, the sow can only wait for farrowing, but because the pedigree of the piglet is not clear and the seed cannot be reserved, the inbred line subculture is delayed, the resource is wasted, and the feeding cost is increased.
The enclosure/wall of the inbred line pig house is generally 1.0-1.2m, is generally enough for small pigs, can also ensure that technicians and feeding personnel can easily approach the enclosure/wall, is convenient to spill materials, clean, observe and the like, if the enclosure is too high, a lot of inconvenience in feeding is caused, the enclosure not only considers the size of the pigs, but also considers the height of people, and therefore the enclosure/wall is more suitable for 1.0-1.2 m. However, in extreme conditions, such as when the male sow is in estrus, the jumping ability can exceed the usual several times under the secretion of sex hormones, and the phenomenon of fence turning occurs.
In order to prevent inbred line boar and sow crossing hurdle injuries and pedigree errors caused by inbreeding of boar and sow crossing the hurdle due to sow oestrus, the design of the special crossing-limiting breeding fence for inbred line pigs has important significance for inbred line pure line subculture breeding.
Disclosure of Invention
In order to solve the problems, the invention provides a medical inbred line pig crossing limiting breeding fence. The movable cover plate capable of sinking is arranged at the jumping-off position of the pig in the pigsty, so that the explosive force generated when the pig jumps off is damaged, the pig is prevented from turning out of the fence, the inbreeding boar is prevented from being strung with the fence to cause pedigree errors, and the non-height inbreeding without records is avoided. The invention has simple structure and convenient use, can effectively prevent the inbred pigs from jumping out by turning over the fence, can ensure the pure blood system of the inbred pigs, and is convenient for the breeding personnel to carry out daily management on the inbred pigs.
In order to achieve the purpose, the invention is implemented according to the following technical scheme:
the anti-bouncing box comprises a fence and a sunshade, wherein a groove is formed in the ground along the fence on the inner side of the fence, an anti-bouncing box body is laid in the groove, a movable cover plate capable of moving up and down is arranged in the anti-bouncing box body, and a reset spring is arranged in the middle of the bottom surface of the movable cover plate.
Furthermore, the top of the inner side wall of the anti-bouncing box body is provided with a sealing plate positioned above the movable cover plate, a sealing gasket is arranged between the sealing plate and the movable cover plate, the movable cover plate and the anti-bouncing box body are enclosed to form a closed inflatable cavity, the inflatable cavity is connected with an air compressor through a pipeline, and the connected pipeline is provided with a pressure regulating valve.
Preferably, the cross section of the sealing gasket is V-shaped.
Furthermore, the inner bottom of the anti-bouncing box body is provided with a guide rod, and the bottom surface of the movable cover plate is provided with a guide pipe matched with the guide rod.
Preferably, four guide rods and four guide tubes are arranged and distributed in a rectangular shape.
Preferably, the movable cover plate is provided with a locking bolt which extends into the guide pipe and can freely rotate horizontally, the locking bolt is in threaded connection with a locking nut, the inner wall of the guide pipe is provided with a guide chute, and the locking nut is provided with a sliding block matched with the guide chute.
Furthermore, the bottom in the anti-bouncing box body is provided with a limiting block for limiting the downward movement distance of the movable cover plate, and the middle part of the limiting block is provided with a mounting hole for positioning the reset spring.
Preferably, the limiting block is internally provided with an air guide channel and a plugging channel which are mutually crossed, the air guide channel is horizontally arranged, one end of the air guide channel is communicated with the inflation cavity, the other end of the air guide channel is connected with the air compressor through a pipeline, the plugging channel is vertically arranged, a valve rod is arranged in the plugging channel, and the top of the valve rod is connected with the movable cover plate.
Preferably, the movable cover plate is provided with anti-skid patterns protruding out of the upper surface of the movable cover plate.
Preferably, the bottom of the anti-bouncing box body is provided with a drainage channel.
The invention has the beneficial effects that:
according to the invention, the movable cover plate capable of sinking is arranged at the jumping-off part of the pig in the inbred line pig breeding fence, so that the instant explosive force of the pig during jumping-off is destroyed, and the pig can not jump effectively, so that the inbred line pig can be prevented from jumping out by crossing the fence, the injury, pedigree error and inbreeding without pedigree record caused by the inbred line pig fence are avoided, and the pure blood system and the ordered successive breeding process of an inbred line are effectively ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a trench structure according to the present invention;
FIG. 3 is a cross-sectional view of the anti-bounce case of the present invention;
FIG. 4 is an enlarged view taken at A of FIG. 3 in accordance with the present invention;
FIG. 5 is a schematic perspective view of a gasket according to the present invention;
FIG. 6 is a schematic cross-sectional view of the gasket of the present invention;
FIG. 7 is a schematic view of the pneumatic circuit of the present invention;
in the figures 1-7, 1-fence, 2-sunshade, 3-groove, 3-1 drainage groove, 4-jump-proof box body, 4-1 sealing plate, 4-2 guide tube, 4-3 guide sliding groove, 4-4 limiting block, 4-5 mounting hole, 4-6 air guide channel, 4-7 plugging channel, 4-8 sealing pad, 4-9 air charging cavity, 4-10 valve rod, 5-movable cover plate, 5-1 locking bolt, 5-2 locking nut, 5-3 guide rod, 5-4 slide block, 5-5 snap spring, 6-reset spring, 7-air compressor and 7-1 pressure regulating valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the skilled person.
As shown in figures 1-7, the medical close-up pig crossing limiting breeding fence comprises a fence 1 and an awning 2, wherein supporting parts of the fence 1 and the awning 2 are built by bricks, the top of the awning 2 is laid by color steel tiles, the supporting parts of the fence 1 and the awning 2 enclose a pig total living area, the pig rest area is arranged at the bottom of the awning 2, and the rest area is pig activity area. The utility model discloses a pig house, including rail 1, the subaerial slot 3 of having seted up along rail 1 of rail 1 inboard, the inslot has laid in the slot 3 and has prevented jumping box 4, is equipped with removable cover 5 that can reciprocate in preventing jumping box 4, 5 bottom surfaces middle parts of removable cover are equipped with reset spring 6, prevent jumping box 4 and lay the number and confirm according to the size of pig house, it is nimble convenient to use. The upper surface of the movable cover plate 5 is flush with the ground of the pigsty, so that the ground of the pigsty is ensured to be flat, the ordinary activities of pigs are not influenced, and the comfort of the pigsty is improved; the movable cover plate 5 is provided with anti-skid patterns protruding out of the upper surface of the movable cover plate 5, so that the friction between the sole of the pig and the movable cover plate 5 can be increased, the pig is prevented from skidding when walking on the movable cover plate 5, and the activity safety of the pig is ensured. The width of slot 3 is greater than or equal to the body length of pig, guarantees that the pig wants to follow rail 1 and overturn the time, and the jump position must be located removable cover 5, and when the pig just jumps, through reset spring 6's effect, makes removable cover 5 constantly fluctuate, decomposes the instant explosive force that the pig just jumped to effectively avoid the pig to jump out the rail.
The top of the inner side wall of the anti-jump box body 4 is provided with a sealing plate 4-1 positioned above the movable cover plate 5, a sealing gasket 4-8 is arranged between the sealing plate 4-1 and the movable cover plate 5, so that the movable cover plate 5 and the anti-jump box body 4 are enclosed into a closed inflation cavity 4-9, the inflation cavity 4-9 is connected with an air compressor 7 through a pipeline, the connected pipeline is provided with a pressure regulating valve 7-1, the sealing plate 4-1 and the anti-jump box body 4 are integrally formed, the structure is firm and solid, the air compressor 7 is connected with an external power supply, the air compressor 7 continuously inflates the inflation cavity 4-9 after working, finally, air pressure with stable size is stored in the inflation cavity 4-9, the air pressure jacks up the movable cover plate 5, the size of the inflation air pressure of the air compressor 7 is regulated through the pressure regulating valve 7-1, and the size of the inflation cavity 4-9 is regulated, the magnitude of the pneumatic thrust on the movable cover plate 5 is changed. When a pig stands on the movable cover plate 5, the main bearing is supported by the reset spring 6, a small amount of bearing is supported by the air pressure in the air inflation cavities 4-9, when the movable cover plate 5 is positioned at the top, the sum of the supporting force of the reset spring 6 and the supporting force of the air pressure is slightly larger than the total weight of the pig and the movable cover plate 5, when the pig moves at ordinary times, the movable cover plate 5 can not move downwards, so that the pig can move on the movable cover plate 5 at ordinary times without difference from the ordinary ground, and the pig is prevented from being frightened because the movable cover plate 5 sinks when the pig walks on the movable cover plate 5 at ordinary times; when a pig only wants to jump over the fence 1, the stress of the movable cover plate 5 is greater than the sum of the supporting force of the return spring 6 and the supporting force of the air pressure, so that the sealing between the movable cover plate 5 and the sealing plate 4-1 is disengaged, the air in the inflatable cavity 4-9 is quickly leaked, the air pressure in the inflatable cavity 4-9 is quickly reduced, the movable cover plate 5 is only supported by the return spring 6, the movable cover plate 5 is quickly lowered to form sinking, the jumping force of the pig is decomposed, the pig cannot jump, meanwhile, the compressed air quickly leaked in the inflatable cavity 4-9 forms an explosion sound, the pig is frightened away, the pig leaves the original jumping position, and the pig is prevented from jumping from the original position again. After the pig leaves the movable cover plate 5, the movable cover plate 5 is jacked up under the action of the return spring 6, the movable cover plate 5 and the sealing plate 4-1 form sealing again under the action of the sealing gasket 4-8, and air is introduced into the inflatable cavity 4-9 by the air compressor 7 to form stable support for the movable cover plate 5.
The cross section of the sealing gasket 4-8 is V-shaped, when the movable cover plate 5 and the sealing plate 4-1 form sealing, the sealing gasket 4-8 is opened towards two sides and filled between the movable cover plate 5 and the sealing plate 4-1 to form sealing, when the movable cover plate 5 slightly moves downwards, the sealing gasket 4-8 is folded towards the middle, the movable cover plate 5 and the sealing plate 4-1 can still form sealing, the sealing between the movable cover plate 5 and the sealing plate 4-1 is more reliable, the problem that the movable cover plate 5 slightly moves downwards to cause air leakage of the inflatable cavity 4-9 due to the fact that the movable cover plate 5 slightly moves downwards when a pig only moves on the movable cover plate 5 at ordinary times is effectively avoided, and normal movement of the pig on the movable cover plate 5 is guaranteed.
The anti-jumping box body 4 is internally provided with a guide rod 5-3 at the bottom, the bottom surface of the movable cover plate 5 is provided with a guide pipe 4-2 matched with the guide rod 5-3, the guide rod 5-3 is connected with the anti-jumping box body 4 in a welding mode, the guide pipe 4-2 is connected with the movable cover plate 5 in a threaded connection mode, the guide rod 5-3 is inserted into the guide pipe 4-2, the movable cover plate 5 is always kept in a horizontal state when moving up and down through the guide effect of the guide rod 5-3 and the guide pipe 4-2, the problem of air leakage of an inflation cavity 4-9 caused by the inclination of the movable cover plate 5 due to the fact that a pig treads one corner of the movable cover plate 5 is avoided, the supporting stability of the movable cover plate 5 is ensured, and meanwhile, the problem that the pig slides down due to the inclination of the movable cover plate 5 is effectively avoided. Four guide rods 5-3 and four guide pipes 4-2 are arranged at the bottoms of four top corners of the movable cover plate 5 in a rectangular manner, so that the guide stability is improved, and the level of the movable cover plate 5 is ensured.
The movable cover plate 5 is provided with a locking bolt 5-1 which extends into the guide pipe 4-2 and can freely horizontally rotate, the locking bolt 5-1 adopts a countersunk bolt, a countersunk hole is preset in the corresponding position of the movable cover plate 5, the locking bolt 5-1 penetrates through the countersunk hole and then extends into the guide pipe 4-2, the locking bolt 5-1 is hidden in the movable cover plate 5, the locking bolt 5-1 is prevented from being bitten by a pig, the service life of the locking bolt 5-1 is prolonged, and the locking bolt 5-1 can freely horizontally rotate through clearance fit between the locking bolt 5-1 and the countersunk hole; in order to prevent the dead-lock bolt 5-1 from being bitten out by the pigs from the upper part, a clamp spring 5-5 is arranged on the dead-lock bolt 5-1, the clamp spring 5-5 is positioned below the movable cover plate 5, the movable cover plate 5 is clamped through the clamp spring 5-5 and the rail of the dead-lock bolt 5-1, and the position of the dead-lock bolt 5-1 is effectively fixed. A locking nut 5-2 is connected to the locking bolt 5-1 in a threaded manner, a guide chute 4-3 is formed in the inner wall of the guide pipe 4-2, a sliding block 5-4 matched with the guide chute 4-3 is arranged on the locking nut 5-2, and the sliding block 5-4 and the locking nut 5-2 are integrally formed, so that the locking nut 5-2 can only move up and down along the guide pipe 4-2 and cannot rotate; when the locking bolt 5-1 is rotated, the locking nut 5-2 is driven to move up and down through threads. When the locking nut 5-2 is abutted against the top end of the guide rod 5-3, locking is formed, so that the movable cover plate 5 cannot move downwards effectively and is used when the temperament of a pig is stable; when the locking nut 5-2 is far away from the top end of the guide rod 5-3, the movable cover plate 5 can freely move up and down and is used when the pig is in the estrus and the emotion is manic.
The anti-bouncing box body 4 is characterized in that a limiting block 4-4 used for limiting the downward moving distance of the movable cover plate 5 is arranged at the bottom of the anti-bouncing box body 4, a mounting hole 4-5 used for positioning the reset spring 6 is formed in the middle of the limiting block 4-4, the position of the reset spring 6 is effectively fixed, the downward moving limit of the movable cover plate 5 is limited by setting the distance between the top surface of the limiting block 4-4 and the bottom surface of the movable cover plate 5, the movable cover plate 5 is prevented from sinking too deeply, meanwhile, the reset spring 6 is protected, the reset spring 6 is prevented from being compressed and transited, the elastic stability of the reset spring 6 is ensured, and the service life of the reset spring 6 is prolonged.
The air guide device is characterized in that air guide channels 4-6 and plugging channels 4-7 which are mutually crossed are arranged in the limiting blocks 4-4, the air guide channels 4-6 are horizontally arranged, one ends of the air guide channels 4-6 are communicated with the air inflation cavities 4-9, the other ends of the air guide channels 4-6 are connected with the air compressor 7 through pipelines, the plugging channels 4-7 are vertically arranged, valve rods 4-10 are arranged in the plugging channels 4-7, the tops of the valve rods 4-10 are connected with the movable cover plate 5, when the movable cover plate 5 is positioned at the top, the valve rods 4-10 do not plug the air guide channels 4-6, the air guide channels 4-6 are communicated, and the air compressor 7 can continuously inflate the air inflation cavities 4-9 to maintain the stability of the air pressure in the air inflation cavities 4-9. When the pig treads the movable cover plate 5 to move downwards, the movable cover plate 5 drives the valve rod 4-10 to move downwards to block the air guide channel 4-6, so that the air compressor 7 cannot perform an air inflation action, the falling speed of the air pressure in the air inflation cavity 4-9 is accelerated, meanwhile, the air compressor 7 is effectively prevented from continuously inflating the air in the air inflation cavity 4-9 when the movable cover plate 5 sinks, and the use cost is reduced.
The bottom of the anti-bouncing box body 4 is provided with the drainage groove 3-1, accumulated water in the groove 3 is timely drained through the drainage groove 3-1, the anti-bouncing box body 4 is prevented from being soaked in water for a long time, and the service life of the anti-bouncing box body 4 is prolonged.
During the working process, when pigs are in an estrus-free state and the temperament is relatively stable, the locking nut 5-2 is driven to move downwards by rotating the locking bolt 5-1, so that the locking nut 5-2 is abutted against the guide rod 5-3, the position of the movable cover plate 5 is locked, and the movable cover plate 5 is not different from the common ground and can be freely treaded.
When the pig is in the oestrus state and the temperament is very maniac, the locking nut 5-2 is driven to move upwards to the limit position by rotating the locking bolt 5-1, so that the movable cover plate 5 can move up and down. The air compressor 7 is connected with an external power supply, the air compressor 7 is electrified to work, and the pressure in the inflatable cavity 4-9 is adjusted through the pressure adjusting valve 7-1 according to the weight of the pig, so that the bearing force supporting force borne by the movable cover plate 5 is adjusted, and the total weight of the pig and the movable cover plate 5 is slightly smaller than the supporting force of the reset spring 6 and the air pressure on the movable cover plate 5; when a pig moves on the movable cover plate 5 at ordinary times, the pig is supported by the return spring 6 and air pressure together, when the pig only wants to jump out of the pigsty from the fence 1, when the pig jumps, the bearing of the movable cover plate 5 is larger than the total supporting force of the return spring 6 and the air pressure, the movable cover plate 5 moves downwards, the valve rod 4-10 plugs the air guide channel 4-6, the seal between the movable cover plate 5 and the sealing plate 4-1 is damaged, the gas in the inflatable cavity 4-9 leaks quickly, the movable cover plate 5 sinks quickly, the instant jumping force of the foot of the pig is decomposed, the pig can not finish jumping action, meanwhile, the quickly leaked gas forms explosion sound, the pig is frightened away, and the pig is prevented from jumping again. After the pig leaves, the movable cover plate 5 moves upwards to reset under the action of the reset spring 6 and forms a seal with the sealing plate 4-1, the valve rod 4-10 moves upwards along with the movable cover plate 5, the air guide channel 4-6 is opened, and the air machine inflates the inflation cavity 4-9.
The movable cover plate capable of sinking is arranged at the pig jumping-off part in the inbred line pig breeding fence, so that the instant explosive force of the pigs during jumping-off is damaged, the pigs can not effectively jump, the inbred line pigs are prevented from jumping out by crossing the fence, the injuries, pedigree errors and the inbreeding without pedigree record caused by the inbred line pig fence are avoided, and the pure pedigree and ordered successive breeding process of the inbred line are effectively ensured.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, while the invention has been described in detail with reference to the foregoing preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims; the size of the attached figure is irrelevant to the specific real object, and the size of the real object can be changed at will.
Claims (7)
1. The utility model provides a fence is bred in limit crossing of medical inbred line pig, includes rail (1) and sunshade (2), its characterized in that: a groove (3) is formed in the ground along the fence (1) on the inner side of the fence (1), an anti-bouncing box body (4) is laid in the groove (3), a movable cover plate (5) capable of moving up and down is arranged in the anti-bouncing box body (4), and a reset spring (6) is arranged in the middle of the bottom surface of the movable cover plate (5);
the top of the inner side wall of the anti-bouncing box body (4) is provided with a sealing plate (4-1) positioned above the movable cover plate (5), a sealing gasket (4-8) is arranged between the sealing plate (4-1) and the movable cover plate (5), so that the movable cover plate (5) and the anti-bouncing box body (4) are enclosed into a closed inflation cavity (4-9), the inflation cavity (4-9) is connected with an air compressor (7) through a pipeline, and the connected pipeline is provided with a pressure regulating valve (7-1);
the bottom in the anti-bouncing box body (4) is provided with a limiting block (4-4) for limiting the downward moving distance of the movable cover plate (5), and the middle part of the limiting block (4-4) is provided with a mounting hole (4-5) for positioning the return spring (6);
the air guide device is characterized in that air guide channels (4-6) and plugging channels (4-7) which are mutually crossed are arranged in the limiting blocks (4-4), the air guide channels (4-6) are horizontally arranged, one ends of the air guide channels (4-6) are communicated with the air inflation cavities (4-9), the other ends of the air guide channels are connected with the air compressor (7) through pipelines, the plugging channels (4-7) are vertically arranged, valve rods (4-10) are arranged in the plugging channels (4-7), and the tops of the valve rods (4-10) are connected with the movable cover plate (5).
2. The medical inbred line pig crossing-limiting breeding fence according to claim 1, which is characterized in that: the cross section of the sealing gasket (4-8) is V-shaped.
3. The medical inbred line pig crossing-limiting breeding fence according to claim 1 or 2, which is characterized in that: the bottom in the anti-jumping box body (4) is provided with a guide rod (5-3), and the bottom surface of the movable cover plate (5) is provided with a guide pipe (4-2) matched with the guide rod (5-3).
4. The medical inbred line pig crossing-limiting breeding fence according to claim 3, which is characterized in that: four guide rods (5-3) and four guide tubes (4-2) are arranged in a rectangular shape.
5. The medical inbred line pig crossing-limiting breeding fence according to claim 4, is characterized in that: the movable cover plate (5) is provided with a locking bolt (5-1) which extends into the guide pipe (4-2) and can rotate freely and horizontally, the locking bolt (5-1) is connected with a locking nut (5-2) in a threaded manner, the inner wall of the guide pipe (4-2) is provided with a guide chute (4-3), and the locking nut (5-2) is provided with a sliding block (5-4) matched with the guide chute (4-3).
6. The medical inbred line pig crossing-limiting breeding hurdle according to claim 1, 2, 4 or 5, which is characterized in that: the movable cover plate (5) is provided with anti-skid patterns protruding out of the upper surface of the movable cover plate (5).
7. The medical inbred line pig crossing-limiting breeding fence according to claim 6, characterized in that: and a drainage groove (3-1) is arranged at the bottom of the anti-bouncing box body (4).
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| CN112616693B true CN112616693B (en) | 2022-06-21 |
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| CN205455211U (en) * | 2016-03-01 | 2016-08-17 | 云南农业大学 | Adult pig pig house of double -deck banna minitype pig inbred line |
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| AU2713099A (en) * | 1998-03-03 | 1999-09-20 | Kristoffer Larsen Innovation A/S | Animal breeding system |
| KR20090058964A (en) * | 2007-12-05 | 2009-06-10 | 농업회사법인 주식회사 다비육종 | Measurement apparatus of body parameters for domestic animals |
| CN205389866U (en) * | 2016-03-01 | 2016-07-27 | 云南农业大学 | Banna minitype pig inbred line pig pig house of growing up |
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| CN112616693A (en) | 2021-04-09 |
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