CN111870388B - Artificial insemination device for sheep - Google Patents
Artificial insemination device for sheep Download PDFInfo
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- CN111870388B CN111870388B CN202010836316.XA CN202010836316A CN111870388B CN 111870388 B CN111870388 B CN 111870388B CN 202010836316 A CN202010836316 A CN 202010836316A CN 111870388 B CN111870388 B CN 111870388B
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- 230000009027 insemination Effects 0.000 title claims abstract description 72
- 241001494479 Pecora Species 0.000 title claims abstract description 41
- 210000005239 tubule Anatomy 0.000 claims abstract description 65
- 210000000582 semen Anatomy 0.000 claims abstract description 60
- 238000003860 storage Methods 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 230000009471 action Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 19
- 239000007924 injection Substances 0.000 description 19
- 238000005516 engineering process Methods 0.000 description 12
- 238000009395 breeding Methods 0.000 description 5
- 241000283690 Bos taurus Species 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 210000003679 cervix uteri Anatomy 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 241000282887 Suidae Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000005000 reproductive tract Anatomy 0.000 description 1
- 210000002863 seminiferous tubule Anatomy 0.000 description 1
- 230000009303 sperm storage Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D19/00—Instruments or methods for reproduction or fertilisation
- A61D19/02—Instruments or methods for reproduction or fertilisation for artificial insemination
- A61D19/027—Devices for injecting semen into animals, e.g. syringes, guns, probes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D19/00—Instruments or methods for reproduction or fertilisation
- A61D19/02—Instruments or methods for reproduction or fertilisation for artificial insemination
- A61D19/022—Containers for animal semen, e.g. pouches or vials ; Methods or apparatus for treating or handling animal semen containers, e.g. filling or closing
- A61D19/024—Tube-like containers, e.g. straws
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Reproductive Health (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Animal Husbandry (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses an artificial insemination device for sheep, which comprises an insemination gun and a liquid storage thin tube, wherein the liquid storage thin tube comprises a protective sleeve, an elbow, a thin tube base, a piston and a thin tube tail; the inner wall of the front end of the tubule base is provided with an annular bulge, the middle part of the piston is correspondingly provided with a groove, and the bulge and the side surface of the piston are relatively deformed under the action of external force and can be matched and embedded into the groove; the semen delivery gun comprises a tube body, a front push rod, a spring and a rear push rod; the invention provides a liquid storage thin tube and a semen delivery gun which are matched for use, so that the semen can be sprayed with larger power, the success rate of artificial insemination is improved, the structure of the liquid storage thin tube is simplified, the cost is reduced, the equipment support is provided for artificial insemination of ewes, the device is safe and reliable, the operation is convenient, and the device has huge economic and social benefits.
Description
Technical Field
The invention belongs to the technical field of artificial insemination of ewes, and particularly relates to an artificial insemination device for sheep.
Background
The artificial insemination (artificial insemination, AI) technique for sheep refers to a scientific breeding method which uses an instrument to collect semen of male animals, after inspection and treatment, the semen is input into proper parts of female animal genital tracts by the instrument to enable the female animals to become pregnant, thereby replacing natural mating of male and female animals. Along with the development of the sheep raising industry and the popularization and the utilization of good varieties, more and more large-scale sheep raising farms adopt artificial insemination technology. The artificial insemination of sheep not only can improve the utilization rate and the breeding rate of breeding ram and accelerate the improvement process of sheep flock, but also can effectively prevent the spread of diseases, save the cost of breeding the breeding ram and reduce the investment. However, the popularity of artificial insemination techniques for sheep has far less than that of cattle and pigs.
The wide application of the artificial insemination technology of the cattle benefits from a successful frozen semen technology and a rectum holding cervical deep insemination technology, and the frozen semen technology of the sheep is successful, but the conception rate of the frozen semen of the sheep is very low because the rectum holding cervical deep insemination technology cannot be implemented by the sheep. The conception rate of sheep can be greatly improved by using the laparoscopic intrauterine insemination technology, but the minimally invasive surgery is required by professional technicians, which is not beneficial to social popularization. Meanwhile, the production cost of the frozen semen unit of the sheep is far higher than that of the cattle, the value of the sheep is far lower than that of the cattle, and the enthusiasm of using the frozen semen of the sheep is greatly reduced.
The widespread popularization of artificial insemination of pigs is due to the introduction of a whole set of foreign maturation technology in recent years, and is mainly suitable for the application of disposable seminiferous tubules and sperm storage bottles for pig reproduction physiology.
At present, the sheep industry develops rapidly, the mutton sheep hybridization production mode is generally adopted to obtain higher benefit, but the effect of the sheep artificial insemination technology is not satisfactory, huge market demands are made on the improvement of the sheep artificial insemination technology, and when the conventional insemination gun and the conventional liquid storage tubule are used, the force applied to the liquid storage tubule by the insemination gun is small, and the liquid storage tubule is simple in structure, low in semen injection speed, and compared with the actual natural insemination, the gap exists, so that the artificial insemination success rate is low, and therefore, the research on an artificial insemination device for sheep is necessary.
Disclosure of Invention
Aiming at the defects and problems of the existing equipment, the invention provides an artificial insemination device for sheep, which effectively solves the problems of low semen injection speed and low insemination success rate in the artificial insemination process of the existing equipment.
The invention solves the technical problems by adopting the scheme that: an artificial insemination device for sheep comprises an insemination gun and a liquid storage thin tube, wherein the insemination gun is matched and sleeved in the liquid storage thin tube and is used for pushing out semen in the liquid storage thin tube; the liquid storage tubule comprises a protecting sleeve, an elbow, a tubule base, a piston and a tubule tail; the front end and the rear end of the tubule body are respectively provided with an elbow and a tubule tail, the piston is sleeved on the tubule body to form a tubule body, and the elbow is sleeved on the front end of the tubule body to seal the elbow; the inner wall of the front end of the tubule base is provided with an annular bulge, the middle part of the piston is correspondingly provided with a groove, and the bulge and the side surface of the piston are relatively deformed under the action of external force and can be matched and embedded into the groove; the semen delivery gun comprises a tube body, a front push rod, a spring and a rear push rod; the front push rod is sleeved at the front end of the pipe body, the rear push rod is arranged at the rear end of the pipe body, the spring is sleeved in the middle of the pipe body, and the front end and the rear end of the spring are fixedly connected with the rear end of the front push rod and the front end of the rear push rod respectively; the rear end of the tube body is matched and sleeved in the tail of the thin tube and is opposite to the middle part of the outer side of the piston.
Further, the inner end of the piston is in a truncated cone-shaped structure, and the front end of the thin tube body is matched with the inner end of the piston.
Further, the length of the rear push rod is larger than the distance between the piston and the front end of the thin tube base.
Furthermore, the tail of the tubule is in a horn-shaped structure with a large outer end and a small inner end; the front end of the tube body is matched and sleeved in the tail of the thin tube.
Further, the ends of the elbow are provided with valves that are combined together.
Further, the front end of the tube body is connected with the tail of the tubule through threads.
The invention has the beneficial effects that: the invention provides a liquid storage thin tube and a semen delivery gun which are matched for use, wherein a disposable tubular structure is arranged at the tail of the liquid storage thin tube, semen is stored in a cavity between a piston and the front end of a thin tube base, the front end of the thin tube base is provided with an elbow, the aperture of the elbow is smaller than the inner diameter of the thin tube base, and the elbow is used for preliminarily increasing the injection speed of the semen; the rear end of the thin tube base is provided with a thin tube tail which is used for extending the rear end of the thin tube base, and the piston is sleeved in the thin tube base and used for plugging semen and used as a driving sliding block for forward pushing the semen; in the prior art, a plug is generally required to be arranged at the rear side of the piston and used for limiting the position of the piston; in order to simplify the structure, the invention correspondingly sets the bulge and the groove in the middle of the inner side of the thin pipe body and the outer side of the piston, the piston can be relatively deformed by the driving of the piston by external force, and the bulge is embedded into the groove, and the structure has the following advantages: firstly, the position of the piston is kept, and a limit structure is not required to be additionally arranged on the rear side of the piston, so that the structure of the liquid storage tubule is simplified, the manufacturing process is reduced, and the cost is reduced; secondly, the piston is limited in the capillary body through the bulge and the groove, the piston can be pushed forward by means of larger external force, and after the piston obtains the external force capable of being pushed forward, the piston can be pushed forward by a larger pushing force instantly, and a larger starting force is provided for the piston, so that the semen can be injected with larger kinetic energy, the semen injection speed is greatly improved, the natural insemination situation is better simulated, and the artificial insemination success rate is improved.
In order to enable the piston to obtain larger driving force, the invention provides an insemination gun, wherein a front push rod, a middle spring and a rear push rod are arranged in the insemination gun, the front push rod and the rear push rod are connected in series through the spring, when the front push rod is driven, the spring is compressed first, the rear push rod is pressed against the piston with the gradual increase of the pressing force applied by the rear push rod along with the compression of the spring, and when the spring is compressed to a certain extent, the driving force applied by the rear push rod is enough, the piston can overcome the limitation of a bulge, and larger driving force is obtained instantaneously.
The invention provides the liquid storage tubule and the insemination gun which are matched for use, so that the liquid storage tubule and the insemination gun have larger power when being matched for use, the success rate of artificial insemination is improved, the structure of the liquid storage tubule is simplified, the cost is reduced, the equipment support is provided for artificial insemination of ewes, the operation is safe and reliable, and the operation is convenient, thereby having huge economic and social benefits.
Drawings
Fig. 1 is a schematic structural view of a liquid storage tubule.
Fig. 2 is a schematic structural view of the tubule body.
Fig. 3 is a schematic structural view of a corner fitting.
Fig. 4 is a view showing the use states of the insemination gun and the liquid storage tubule.
Fig. 5 is another state diagram of fig. 4.
Fig. 6 is an internal structural illustration of the insemination gun.
Fig. 7 is a schematic diagram of the assembly relationship of the piston to the capillary base.
The reference numerals in the figures are: 1 is a thin tube base, 2 is an elbow, 3 is a thin tube tail, 4 is a piston, 5 is a protective sleeve, 6 is a semen delivery gun, 7 is a front push rod, 8 is a spring, 9 is a rear push rod, 10 is a tube body, 11 is a threaded section, 12 is an inclined section, 13 is a main body section, 14 is a groove, 15 is a bulge, 16 is a valve, 17 is a spray cavity, and 18 is a spray hole.
Detailed Description
The invention will be further described with reference to the drawings and examples.
Example 1: the embodiment aims to provide an artificial insemination device for sheep, which is mainly used in an artificial insemination process of sheep, wherein a female sheep is small in size, only cervical insemination can be implemented by means of a prolapsus apparatus, the cervical of the sheep is very thin, muscular protruding rings are embedded in a cervical canal, the insertion depth of a common insemination gun is limited during insemination, the semen injection speed is low, a large amount of semen cannot enter the cervical, so that the conception rate is low, the artificial insemination device in the embodiment comprises an insemination gun and a liquid storage thin pipe, and the insemination gun is matched and sleeved in the liquid storage thin pipe and is used for pushing out the semen in the liquid storage thin pipe; aiming at the structural defects in the existing insemination gun and the liquid storage tubule, the semen injection speed is low when in use, so that the artificial insemination success rate is low, and the artificial insemination device for sheep with novel structure and high semen injection speed is provided for the embodiment.
As shown in fig. 1, the liquid storage tubule comprises a protecting sleeve 5, an elbow 2, a tubule base 1, a piston 4 and a tubule tail 3; in this embodiment, the liquid storage tubule is made of disposable and degradable materials, the front end and the rear end of the tubule base 1 are respectively provided with an elbow 2 and a tubule tail 3, the tubule base 1 is a hard tubular body, semen is stored in the tubule base, the diameter of the elbow is smaller than that of the tubule base, the elbow is used as a jetting part of semen, the tubule base penetrates into the cervical orifice when in use, the tubule tail is used as the extension of the tubule base at the rear end of the piston, and the tubule base is matched and sleeved with the front end of the semen delivery gun when in use.
The piston 4 is sleeved in the tubule body 1 to form a tubule body, the protecting sleeve 5 is sleeved at the front end of the tubule body to seal the elbow 2, and the protecting sleeve 5 can protect the elbow 2 and is taken down when in use; semen is stored between the piston 4 and the front end of the capillary base 1, and the piston 4 can slide along the capillary base under the action of external force, so that the semen is pushed out.
In this embodiment, the end of the elbow is shaped like a round head, the round head is basically round, the diameter is 2.5mm, the degree of the elbow body at the rear side of the round head is 7mm, the diameter of the internal channel of the elbow is 1.5mm, the internal channel enables the round head to be communicated with the interior of the tubule body, the diameter of the inner cavity of the tubule body is 3-4mm, the length is 25mm, the wall thickness is 0.5mm, the diameter of the rear end of the tubule tail is 4.2mm, and the length of the tubule tail is 6mm.
In order to improve the ejection speed of semen and simplify the structure of the liquid storage tubule, in this embodiment, an annular protrusion 15 is provided on the inner wall of the front end of the tubule 1, a groove 14 is correspondingly provided in the middle of the piston 4, and the protrusion 15 deforms relatively with the side surface of the piston 4 under the action of external force and can be matched and embedded into the groove 14; the concrete arch is entity or elastomer (rubber), and the piston corresponds has rubber piece or hard piece of certain deformability, and both can take place relative deformation under the exogenic action, makes piston 4 can slide along protruding 15, removes the recess 14 at piston middle part to protruding 15 department, makes piston 4 and protruding 15 match suit and fixed, and the advantage of this structure is: the structure for fixing the piston is simplified, the structure for limiting the piston is needed on the rear side of the piston, the existing mode is that a plug is additionally arranged, the structure is complex, the use is troublesome, the cost is high, once the plug is removed, the piston naturally retreats, the operation difficulty is improved, and the limiting structure provided with the protrusions 15 and the grooves 14 can enable the piston to be in a stable structure, and prevent the piston from retreating to cause semen overflow; meanwhile, when the piston moves relatively, larger power is needed to drive the piston and the bulge to slide relatively, namely, after the piston is separated from the bulge, the piston has larger driving force, and the ejection speed of semen is improved.
In order to further increase the ejection speed of semen, the semen delivery device 6 comprises a tube body 10, a front push rod 7, a spring 8 and a rear push rod 9; the front push rod 7 is sleeved at the front end of the pipe body 10, the rear push rod 9 is arranged at the rear end of the pipe body 10, the spring 8 is sleeved in the middle of the pipe body, and the front end and the rear end of the spring 8 are fixedly connected with the rear end of the front push rod and the front end of the rear push rod respectively; the rear end of the tube body is matched and sleeved in the tail of the thin tube and is opposite to the middle part of the outer side of the piston.
In this embodiment, the middle part of the semen delivery gun is provided with the spring 8, the front push rod 7 and the rear push rod 9 are connected in series by the spring 8, the front push rod is used as a pushing section of an operator hand, the spring 8 can buffer certain power, after the blocking of the elastic force of the limiting spring disappears, the capability of accumulating the spring can instantaneously burst, the rear push rod 9 is in direct contact with the piston 4, the spring 8 gradually compresses the spring 8 along with the front push rod 7, the power applied to the rear push rod 9 by the spring 8 is larger and larger, namely the thrust of the rear push rod 9 to the piston 4 is gradually increased, when the stress of the piston exceeds the force required by the relative deformation between the piston and the bulge, the piston 4 can slide along the bulge 15, and after the piston 4 is separated from the bulge 15, because the spring buffer has larger elastic force, the rear push rod and the piston can instantaneously obtain larger power under the elastic force of the spring after the piston loses constraint, and the semen is pushed to be sprayed out from the elbow, and the semen spraying speed is greatly improved.
Therefore, the liquid storage thin tube is a disposable article, integrates the functions of semen storage and semen delivery, can directly contact the cervix to finish semen delivery, has simple and compact structure and low cost; the liquid storage tubule is thin and curved, and the twisting insemination gun drives the elbow screw to drill into the cervix during insemination, thereby completing insemination in the deep part of the cervix, and obviously improving the conception rate of sheep; the liquid storage tubule is a commercial disposable cleaning article, is safe and reliable, does not need to be disinfected by a user, is convenient to operate, and can be operated by non-professional technicians after demonstration; semen can be industrially manufactured, the split-packed semen is convenient to store, the user can conveniently purchase, the current situation that sheep artificial insemination is limited to be implemented in a large-scale field is changed, the socialization and commercialization of a sheep artificial insemination technology are realized, the sheep artificial insemination technology is comprehensively and rapidly popularized, and the development of the sheep industry is promoted.
Example 2: this embodiment is substantially the same as embodiment 1, except that: the present embodiment further defines the structure of the piston.
The inner end of the piston 4 is in a truncated cone-shaped structure, and the front end of the capillary base 1 is matched with the inner end of the piston 4 in the opposite direction; in this embodiment, the inner end of the piston 4 is small, then gradually increases and adapts to the inner diameter of the capillary base, and when the structure is operated, semen is injected into the capillary base from the tail end, and the piston is additionally arranged, so that the piston needs to pass through the bulge, the small structure at the front end reduces the contact progress between the front end of the piston and the bulge, and the front end of the capillary base adapts to the inner end of the piston, when the piston reaches the tail end of the capillary base, the two can completely push out semen, thereby reducing the residual quantity of semen
Example 3: this embodiment is substantially the same as embodiment 1, except that: this embodiment further defines the structure of the insemination gun 6.
The length of the rear push rod 9 is larger than the distance between the piston 4 and the front end of the capillary base; in this embodiment, the length of the rear push rod is greater than the pushing stroke of the piston, so that the rear push rod is prevented from being separated from the pipe body after the piston is completely pushed out, and the spring 8 is a high-pressure spring, so that the power (energy) stored by the unit deformation of the spring 8 is improved.
The tubule tail 3 is in a horn-shaped structure with a large outer end and a small inner end; the front end of the pipe body 10 is matched and sleeved in the thin pipe tail 3, and the front end of the pipe body 10 is connected with the thin pipe tail 3 through threads.
The pipe body in the embodiment comprises a threaded section 11, an inclined surface section 12 and a main body section 13, wherein the front end of the threaded section is horizontal; the inclined plane section 12 of body and the loudspeaker form structure matching suit of tubule tail 3 are in the same place, and screw thread section 11 threaded connection is in the front end of tubule base 1 to the front end of body and tubule tail threaded connection are in the same place in this embodiment, with body and tubule base screw thread fastening together when using, convenient operation, and threaded connection stability is strong, when guaranteeing that the piston promotes inwards, tubule base and body can not break away from.
The insemination gun and the liquid storage tubule are connected in a screwed mode through threads, the structure is simple, the safety is high, standardized operation of sheep artificial insemination is facilitated, social large-scale popularization is facilitated, the cost is greatly reduced, the semen injection speed is high, and compared with the existing artificial insemination, the conception rate of the artificial insemination device in the embodiment is improved by 15% -20%.
Example 4: this embodiment is substantially the same as embodiment 1, except that: the present embodiment further defines the structure of the elbow 2.
The end of the elbow 2 is provided with a valve 16 which is combined together, in this embodiment, the valve 16 is arranged in the middle of the front side of the elbow and is equivalent to a one-way valve, the valve 16 can be opened after being stressed at the inner end, the rear end of the valve is also provided with an injection cavity 17, the front side surface of the injection cavity 17 is provided with a plurality of injection holes 18, the injection holes 18 are in a structure with large inner ends and small outer ends, and when the semen overcomes the blockage of the valve 16, the semen enters the injection cavity 17 and is ejected forward or to the periphery of the elbow from the injection holes 18.
In the embodiment, the injection cavity and the injection hole are arranged, when the semen has larger power under the drive of the piston, the semen enters the injection cavity after being blocked by the valve is overcome, and is injected from the injection hole, so that the injection speed of the semen is greatly improved, and the success rate of artificial insemination is improved.
Claims (6)
1. An artificial insemination device for sheep comprises an insemination gun and a liquid storage thin tube, wherein the insemination gun is matched and sleeved in the liquid storage thin tube and is used for pushing out semen in the liquid storage thin tube; the method is characterized in that: the liquid storage tubule comprises a protecting sleeve, an elbow, a tubule base, a piston and a tubule tail; the front end and the rear end of the tubule body are respectively provided with an elbow and a tubule tail, the piston is sleeved on the tubule body to form a tubule body, and the elbow is sleeved on the front end of the tubule body to seal the elbow; the inner wall of the front end of the tubule base is provided with an annular bulge, the middle part of the piston is correspondingly provided with a groove, and the bulge and the side surface of the piston are relatively deformed under the action of external force and can be matched and embedded into the groove; the limiting structure provided with the protrusions and the grooves enables the piston to be in a stable structure, and the piston is prevented from retreating to cause semen overflow; meanwhile, when the piston moves relatively, larger power is needed to drive the piston and the bulge to slide relatively, namely, after the piston is separated from the bulge, the piston has larger driving force, so that the ejection speed of semen is improved; the semen delivery gun comprises a tube body, a front push rod, a spring and a rear push rod; the front push rod is sleeved at the front end of the pipe body, the rear push rod is arranged at the rear end of the pipe body, the spring is sleeved in the middle of the pipe body, and the front end and the rear end of the spring are fixedly connected with the rear end of the front push rod and the front end of the rear push rod respectively; the rear end of the tube body is matched and sleeved in the tail of the thin tube and is opposite to the middle part of the outer side of the piston; the front push rod and the rear push rod are connected in series through the spring, the front push rod is used as a pushing section of an operator hand, the spring can buffer certain power, after the blocking of the elastic force of the limiting spring disappears, the capability of accumulating the spring can instantaneously burst, the rear push rod is in direct contact with the piston, the power applied to the rear push rod by the spring is gradually increased along with the gradual compression of the spring by the front push rod, namely the thrust of the rear push rod to the piston is gradually increased, after the stress of the piston exceeds the force required by relative deformation between the piston and the bulge, the piston can slide along the bulge, and after the piston is separated from the bulge, because the spring buffer has larger elastic force, after the piston loses constraint, the rear push rod and the piston can instantaneously obtain larger power under the elastic force of the spring, and the semen is pushed to be ejected from the elbow so as to improve the ejection speed of the semen.
2. An artificial insemination device for sheep according to claim 1, wherein: the inner end of the piston is in a truncated cone-shaped structure, and the front end of the thin tube body is matched with the inner end of the piston.
3. An artificial insemination device for sheep according to claim 1, wherein: the length of the rear push rod is larger than the distance between the piston and the front end of the capillary base.
4. An artificial insemination device for sheep according to claim 1, wherein: the tail of the tubule is in a horn-shaped structure with a large outer end and a small inner end; the front end of the tube body is matched and sleeved in the tail of the thin tube.
5. An artificial insemination device for sheep according to claim 1, wherein: the ends of the elbow are provided with valves which are combined together.
6. An artificial insemination device for sheep according to claim 1, wherein: the front end of the tube body is connected with the tail of the tubule through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836316.XA CN111870388B (en) | 2020-08-19 | 2020-08-19 | Artificial insemination device for sheep |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836316.XA CN111870388B (en) | 2020-08-19 | 2020-08-19 | Artificial insemination device for sheep |
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| CN111870388A CN111870388A (en) | 2020-11-03 |
| CN111870388B true CN111870388B (en) | 2023-11-14 |
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| CN202010836316.XA Active CN111870388B (en) | 2020-08-19 | 2020-08-19 | Artificial insemination device for sheep |
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| CN112400803B (en) * | 2020-12-18 | 2022-06-17 | 河南中羊牧业有限公司 | Method for breeding ewes fed in barn for 2 fetuses in 1 year |
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| DE2435790A1 (en) * | 1974-07-25 | 1976-02-12 | Simmet Ludwig Dr Med Vet | Apparatus for performing artificial insemination - has pipette tube for receiving semen tube and is fitted with ejector rod |
| CN2318994Y (en) * | 1998-03-13 | 1999-05-19 | 欧广志 | Multifunctional thin tube frozen semen delivery gun for cow |
| CN201399012Y (en) * | 2009-04-03 | 2010-02-10 | 陈生瑞 | Improved animal artificial insemination device |
| CN201500210U (en) * | 2009-10-16 | 2010-06-09 | 新疆维吾尔自治区畜牧科学院中国-澳大利亚绵羊育种研究中心 | Deep insemination device for animals |
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| CN212308115U (en) * | 2020-08-20 | 2021-01-08 | 河南省畜牧总站 | Sheep is with artificial insemination device |
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| AU2003203950C1 (en) * | 2002-05-15 | 2009-01-22 | Nipro Corporation | Catheter for artificial insemination |
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| CN111870388A (en) | 2020-11-03 |
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