Seminiferous duct device applied to artificial insemination of sows

Abstract

The invention relates to the field of artificial insemination of domestic pigs, in particular to a seminiferous duct device applied to artificial insemination of sows, and aims to solve the problems that in the prior art, the seminiferous ducts for artificial insemination of sows are not uniform in seminiferous quantity and cannot be cleaned in time. The insemination tube comprises an insemination tube body and a mounting cylinder connected to the periphery of the tail of the insemination tube body in a sleeving mode, the tail of the insemination tube body extends into the mounting cylinder, and a connecting tube communicated with the interior of the insemination tube body is fixed to the bottom of the mounting cylinder; and the material fixing mechanism comprises a containing cylinder fixed to the bottom face of the installation cylinder and a bottom plate installed at the bottom of the containing cylinder through a connecting assembly, an injector is placed in the containing cylinder, a liquid outlet of the injector is matched with the connecting pipe, the bottom of the containing cylinder is open, and a taking and placing groove is formed in one side of the containing cylinder. By means of the sow artificial insemination device, artificial insemination operation on sows can be conveniently and efficiently completed, the amount of seminal fluid input each time can be controlled, and meanwhile the outer wall of a seminiferous duct can be cleaned in time after insemination is completed.

Description

Technical Field

[0001] The invention relates to the field of artificial insemination of domestic pigs, in particular to a vas deferens device used for artificial insemination of sows. Background Art

[0002] Artificial insemination of sows is one of the most economical and effective technical measures in pig production. It reduces the cost of pig farming by making full use of the sperm of excellent boars, and also helps to preserve excellent genes. In the process of artificial insemination of sows, the most important step is to deliver the boar's sperm into the sow's uterus.

[0003] The current traditional method is to use a pipe, then connect a container containing semen to the pipe, and then squeeze the semen in the container into the sow's uterus. The problem with this method is that the amount of semen is not uniform each time, which affects the probability of fertilization. Moreover, in the process of artificial insemination of different sows, it is necessary to clean the vas deferens that has been used once in time to avoid cross infection and affect the success rate of fertilization. For this reason, this scheme proposes a vas deferens device for artificial insemination of sows. Summary of the invention

[0004] The vas deferens device for artificial insemination of sows proposed by the present invention solves the problems of inconsistent sperm delivery volume and failure to clean the vas deferens in time in the prior art for artificial insemination of sows.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The insemination tube device used for artificial insemination of sows includes:

[0007] The insemination mechanism comprises a vas deferens and a mounting tube sleeved on the outer periphery of the tail of the vas deferens, the tail of the vas deferens extends into the interior of the mounting tube, and a connecting tube communicating with the interior of the vas deferens is fixed to the bottom of the mounting tube;

[0008] The solid material mechanism comprises a placing cylinder fixed to the bottom surface of the installation cylinder and a bottom plate installed at the bottom of the placing cylinder through a connecting assembly, a syringe is placed in the placing cylinder, the liquid outlet of the syringe is matched with the connecting tube, the bottom of the placing cylinder is open, and a taking and placing groove is opened on one side of the placing cylinder;

[0009] The pressing mechanism comprises a gripping plate arranged on one side of the placing cylinder, a screw rod rotatably connected to the bottom surface of the mounting cylinder, and a push plate threadedly sleeved on the outer periphery of the screw rod, the push plate is located directly below the bottom plate, the outer periphery of the screw rod is sleeved with a ratchet, the gripping plate is connected to the placing cylinder through an elastic member, and a tooth plate is fixed on the outer wall of the gripping plate, and ratchet teeth matching the ratchet wheel are installed on the tooth plate;

[0010] The gas delivery mechanism includes a device installed on the outer wall of the placement tube and used to deliver gas into the vas deferens while pressing the grip plate;

[0011] The cleaning mechanism comprises an annular tube movably sleeved on the outer periphery of the vas deferens, a water tank installed on the top of the mounting tube and an adjusting strip movably installed on the mounting tube, one end of the adjusting strip is fixedly connected to the annular tube, a plurality of water spray holes are opened on the inner circle of the annular tube, and the annular tube and the water tank are connected through a water delivery pipe.

[0012] Through the above technical solution, not only can the artificial insemination operation of the sow be completed conveniently and efficiently, but also the amount of semen input each time can be controlled, and at the same time, the outer wall of the vas deferens can be cleaned in time after the insemination is completed.

[0013] As a further improvement of the above scheme, the air supply mechanism includes an elastic air bag installed on the outer wall of the placing tube, a fixed tube fixed to the outer periphery of the placing tube and a first air supply tube installed at the tail of the vas deferens, one end of the elastic air bag is fixedly connected to the outer wall of the grip plate on one side close to the placing tube, one end of the fixed tube is connected to the elastic air bag, a first one-way valve is installed on the first air supply tube, and the other end of the first air supply tube is connected to the fixed tube, a first air inlet pipe is installed on the outer periphery of the elastic air bag, and a second one-way valve is installed on the first air inlet pipe.

[0014] Through the above technical solution, the air bag is pressed to supply air into the vas deferens, thereby discharging the semen in the vas deferens.

[0015] As a further improvement of the above solution, a groove for the piston rod of the syringe to pass through is provided on the side wall of the bottom plate, and the groove is arranged in the same direction as the taking and placing groove.

[0016] The above technical solution can prevent the bottom plate from blocking the piston rod.

[0017] As a further improvement of the above scheme, the connecting assembly includes a movable rod fixed on the top surface of the base plate and a limiting sleeve movable on the outer periphery of the movable rod. The limiting sleeve is fixedly connected to the outer periphery of the placing tube, and the outer periphery of the limiting sleeve is threaded with a locking bolt for locking the movable rod.

[0018] Through the above technical solution, the position of the bottom plate can be easily adjusted, thereby achieving the purpose of facilitating the disassembly and assembly of the syringe.

[0019] As a further improvement of the above solution, a limiting rod is fixed to the bottom surface of the bottom plate, a limiting hole matching the limiting rod is opened on the top surface of the push plate, and the limiting rod passes through the limiting hole and extends to below the push plate.

[0020] The above technical solution can prevent the push plate from rotating with the screw.

[0021] As a further improvement of the above scheme, the number of the elastic parts is set to two, and the two elastic parts are respectively located on both sides of the elastic airbag, and the elastic part includes a buffer rod fixed on the outer wall of the grip plate on one side close to the placement tube and a movable set of fixed tubes arranged outside one end of the buffer rod, and a spring is fixed to one end of the buffer rod located in the fixed tube, and the other end of the spring is fixed to the inner wall of the fixed tube.

[0022] Through the above technical solution, the grip plate can automatically rebound after being pressed when the external force is lost.

[0023] As a further improvement of the above solution, a plurality of hard film sheets for sealing the openings are installed on the inner ring of the head opening of the vas deferens.

[0024] The above technical solution can prevent the semen in the vas deferens from flowing out in a natural state.

[0025] As a further improvement of the above scheme, the adjustment strip is arranged along the axial direction of the vas deferens, and a baffle is fixed to the end of the adjustment strip away from the annular tube, a telescopic tube is sleeved on the outer periphery of the adjustment strip, both ends of the telescopic tube are sealed, and one end of the telescopic tube is fixedly connected to the baffle, and the other end of the telescopic tube is fixedly connected to the outer wall of the mounting tube, a second air supply pipe connected to the interior of the telescopic tube is fixedly connected to the outer periphery of the telescopic tube, and the other end of the second air supply pipe is connected to the interior of the water tank, a third one-way valve is installed on the second air supply pipe, a second air intake pipe is installed on the outer periphery of the telescopic tube, and a fourth one-way valve is installed on the second air intake pipe.

[0026] Through the above technical solution, the telescopic tube is pressed when the adjustment bar moves, so that the air in the telescopic tube is pressed into the water tank, thereby achieving the purpose of increasing the pressure in the water tank.

[0027] As a further improvement of the above scheme, the bottom of the water tank is rotatably connected to a hollow rotating shaft, the top of the rotating shaft extends to the inside of the water tank, and the top of the rotating shaft is provided with a water inlet connected to the inside of the water tank, the water pipe is a hose, and the water pipe is wound around the outer circumference of the rotating shaft, the other end of the water pipe is fixedly connected to the rotating shaft, and this end of the water pipe is connected to the inside of the rotating shaft.

[0028] Through the above technical solution, the purpose of facilitating the storage and unfolding of the water pipe is achieved by rotating the rotating shaft.

[0029] As a further improvement of the above solution, a plurality of tooth grooves are provided on the side of the adjustment strip, the bottom of the rotating shaft extends to the inside of the mounting tube and is fixed with a transmission gear, and the transmission gear is meshed with the tooth grooves.

[0030] Through the above technical solution, the rotation shaft can be driven to rotate by the movement of the adjustment bar.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. Through the cooperation among the insemination mechanism, the solid material mechanism, the pressing mechanism and the air delivery mechanism, air can be injected into the vas deferens when the grip is pressed, so that the semen in the vas deferens can be ejected outwards. When the grip is released, the semen in the syringe can be automatically pressed into the vas deferens in a quantitative manner, thereby achieving the purpose of convenient and efficient insemination. In addition, the air flow is used to blow out the semen in the vas deferens, so that the semen can enter deeper into the sow's uterus, which helps to increase the chance of conception.

[0033] 2. Through the setting of the cleaning mechanism, after each insemination, the ring tube can be pushed to move along the length direction of the vas deferens, and at the same time, the water in the water tank is pressed into the ring tube and sprayed out, so as to achieve the purpose of convenient cleaning of the vas deferens

[0034] 3. Through the cooperation among the rotating shaft, the adjusting strip, the telescopic tube, the transmission gear and the second air supply tube, the air in the telescopic tube can be pressed into the water tank while pushing the adjusting strip to move closer to the head of the vas deferens, thereby pressing the water in the water tank into the annular tube, so as to achieve the purpose of automatically supplying water to the annular tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A perspective view of the present invention;

[0036] Figure 2 for Figure 1 A cross-sectional view of the mounting tube and the telescopic tube;

[0037] Figure 3 for Figure 2 A schematic diagram of the structure of the bottom surface of the mounting cylinder;

[0038] Figure 4 It is a structural schematic diagram of the solid material mechanism and the pressing mechanism;

[0039] Figure 5 for Figure 4 A schematic diagram of the structure of the back side of the tube is placed in the middle;

[0040] Figure 6 Schematic diagram of the structure of the head of the vas deferens.

[0041] Description of main symbols:

[0042] 1. Installation tube; 2. Vas deferens; 3. Syringe; 4. Water tank; 5. Grip plate; 6. Tooth plate; 7. Elastic airbag; 8. Elastic part; 9. Placement tube; 10. Push plate; 11. Limit rod; 12. Screw rod; 13. Bottom plate; 14. First air pipe; 15. Ratchet; 16. Second air pipe; 17. Water pipe; 18. Adjustment strip; 19. Ring pipe; 20. Telescopic pipe; 21. Connecting pipe; 22. Baffle; 23. Rotating shaft; 24. Transmission gear; 25. Fixed pipe; 26. Movable rod; 27. Limit sleeve; 28. Hard film. DETAILED DESCRIPTION

[0043] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0044] Embodiment 1:

[0045] Please combine Figure 1 - Figure 6 The vas deferens device for artificial insemination of sows of this embodiment comprises:

[0046] The insemination mechanism includes a vas deferens 2 and a mounting tube 1 sleeved on the outer periphery of the tail end of the vas deferens 2, the tail end of the vas deferens 2 extends into the interior of the mounting tube 1, a connecting tube 21 connected to the interior of the vas deferens 2 is fixed at the bottom of the mounting tube 1, and a fifth one-way valve is installed on the connecting tube 21 to prevent the semen in the vas deferens 2 from flowing out through the connecting tube.

[0047] The inner circle of the head opening of the vas deferens 2 is installed with a plurality of hard film sheets 28 for blocking the openings. The plurality of hard film sheets 28 together form a barrier to block the opening of the vas deferens 2, thereby preventing the semen in the vas deferens 2 from flowing out naturally.

[0048] The solid material mechanism includes a placement cylinder 9 fixed to the bottom surface of the installation cylinder 1 and a base plate 13 installed at the bottom of the placement cylinder 9 through a connecting component. A syringe 3 is placed in the placement cylinder 9, and the liquid outlet of the syringe 3 is matched with the connecting tube 21. The bottom of the placement cylinder 9 is open, and a pick-up and placement groove is provided on one side of the placement cylinder 9. A groove for the piston rod of the syringe 3 to pass through is provided on the side wall of the base plate 13, and the groove is arranged in the same direction as the pick-up and placement groove. The setting of the pick-up and placement groove facilitates the placement of the syringe 3 into the placement cylinder 9. After the syringe 3 is placed into the placement cylinder 9, the liquid outlet of the syringe 3 is inserted into the connecting tube 21, so that the bottom of the syringe 3 falls on the base plate 13, thereby supporting the syringe.

[0049] The connecting assembly includes a movable rod 26 fixed to the top surface of the base plate 13 and a limiting sleeve 27 that is movably sleeved on the outer periphery of the movable rod 26. The limiting sleeve 27 is fixedly connected to the outer periphery of the placement tube 9, and the outer periphery of the limiting sleeve 27 is threaded with a locking bolt for locking the movable rod 26. One end of the locking bolt abuts against the outer periphery of the movable rod 26. The movable rod 26 can be locked by utilizing the static friction between the locking bolt and the movable rod 26. When disassembling and assembling the syringe 3, the locking bolt can be loosened first, and then the position of the base plate 13 can be adjusted, thereby facilitating the placement of the syringe 3 into the interior of the placement tube 9 and plugging it into the connecting tube 21.

[0050] The pressing mechanism includes a gripping plate 5 arranged on one side of the placing cylinder 9, a screw 12 rotatably connected to the bottom surface of the mounting cylinder 1, and a push plate 10 threadedly sleeved on the outer periphery of the screw 12. The push plate 10 is located directly below the bottom plate 13. A ratchet 15 is sleeved on the outer periphery of the screw 12. The gripping plate 5 is connected to the placing cylinder 9 through an elastic member 8, and a toothed plate 6 is fixed on the outer wall of the gripping plate 5. Ratchet teeth matching the ratchet 15 are installed on the toothed plate 6. In the original state, the ratchet teeth do not contact the ratchet 15, so that the screw 12 can rotate automatically, thereby facilitating the pressing of the screw 12. The position of the push plate 10 is adjusted, a limiting rod 11 is fixed to the bottom surface of the bottom plate 13, a limiting hole is opened on the top surface of the push plate 10 which matches the limiting rod 11, the limiting rod 11 extends through the limiting hole to the bottom of the push plate 10, and the rotation of the screw will drive the push plate 10 to move, while the setting of the limiting rod 11 is to prevent the push plate 10 from rotating. The cooperation between the ratchet 15 and the ratchet teeth makes the grip plate 5 drive the screw 12 to rotate only during the rebound process, thereby achieving the purpose of automatically injecting the semen in the syringe 3 into the vas deferens 2.

[0051] The number of elastic members 8 is set to two, and the two elastic members 8 are respectively located on both sides of the elastic airbag 7. The elastic member 8 includes a buffer rod fixed on the outer wall of the grip plate 5 close to the placement tube 9 and a movable set of fixed tubes arranged outside one end of the buffer rod. A spring is fixed to one end of the buffer rod located in the fixed tube, and the other end of the spring is fixedly connected to the inner wall of the fixed tube. When the grip plate 5 is pressed, the buffer rod will move toward the inside of the fixed tube, thereby compressing the spring. After the grip plate 5 is released, the spring rebounds, thereby driving the grip plate 5 to automatically return to its original position.

[0052] The air delivery mechanism includes an air bag installed on the outer wall of the placement tube 9 and used for delivering air to the vas deferens 2 while pressing the grip plate 5. The air delivery mechanism includes an elastic air bag 7 installed on the outer wall of the placement tube 9, a fixed tube 25 fixed on the outer periphery of the placement tube 9 and a first air delivery tube 14 installed at the tail end of the vas deferens 2. One end of the elastic air bag 7 is fixedly connected to the outer wall of the grip plate 5 on one side close to the placement tube 9, one end of the fixed tube 25 is connected to the elastic air bag 7, a first one-way valve is installed on the first air delivery tube 14, and the other end of the first air delivery tube 14 is connected to the fixed tube 25, a first air inlet pipe is installed on the outer periphery of the elastic air bag 7, and a second one-way valve is installed on the first air inlet pipe. When the grip plate 5 is pressed, the air in the elastic air bag 7 will be pressed into the vas deferens 2, thereby squeezing the semen in the vas deferens 2 outward, and finally the semen is ejected from the head of the vas deferens 2.

[0053] The cleaning mechanism includes an annular tube 19 movably sleeved on the outer periphery of the vas deferens 2, a water tank 4 installed on the top of the mounting tube 1 and an adjusting strip 18 movably installed on the mounting tube 1. The water tank 4 is filled with cleaning liquid. One end of the adjusting strip 18 is fixedly connected to the annular tube 19. The inner circle of the annular tube 19 is provided with a plurality of water spray holes, and the annular tube 19 is connected to the water tank 4 through a water pipe 17. After one artificial insemination is completed, after the vas deferens 2 is pulled out of the sow's body, the adjusting strip 18 is pushed to move along the length direction of the vas deferens 2, and at the same time, pressure is applied to the water tank 4, so that the water in the water tank 4 is pressed out and then sprayed out from the water spray holes on the annular tube 19, so that the vas deferens 2 can be cleaned.

[0054] The adjusting strip 18 is arranged along the axial direction of the vas deferens 2, and a baffle 22 is fixed to one end of the adjusting strip 18 away from the annular tube 19, a telescopic tube 20 is sleeved on the outer periphery of the adjusting strip 18, both ends of the telescopic tube 20 are sealed, and one end of the telescopic tube 20 is fixedly connected to the baffle 22, and the other end of the telescopic tube 20 is fixedly connected to the outer wall of the mounting tube 1, a second air supply pipe 16 communicating with the interior of the telescopic tube 20 is fixedly arranged on the outer periphery of the telescopic tube 20, and the other end of the second air supply pipe 16 is connected to the interior of the water tank 4, a third one-way valve is installed on the second air supply pipe 16, a second air inlet pipe is installed on the outer periphery of the telescopic tube 20, and a fourth one-way valve is installed on the second air inlet pipe, so that the air in the telescopic tube 20 can be pressed into the water tank 4 while pushing the adjusting strip 18 to move, thereby increasing the pressure in the water tank 4.

[0055] The implementation principle of this embodiment is as follows: when in use, first fill the syringe 3 with the semen to be used, then loosen the locking bolt, move the bottom plate 13 to the side away from the placement tube 9, then put the syringe 3 into the placement tube 9, and insert the liquid outlet of the syringe 3 into the connecting tube 21, then move the bottom plate 13 to make it abut against the bottom of the syringe 3, then rotate the screw 12 forward, so that the push plate 10 abuts against the end of the piston rod of the syringe 3, and then tighten the locking bolt;

[0056] Then, the grip plate 5 is pressed once more and released. During the process of releasing the grip plate 5, the ratchet teeth on the tooth plate drive the ratchet 15 to rotate forward, thereby driving the screw 12 to rotate forward, and the push plate 10 moves upward accordingly, thereby pushing the piston rod of the syringe 3 to move toward the inside of the syringe 3, so that the semen in the syringe 3 can be injected into the vas deferens 2, until the ratchet teeth are out of contact with the ratchet 15, and the screw 12 stops rotating. Then, the vas deferens can be inserted into the sow's vagina. After the vas deferens 2 reaches a certain depth, the grip plate 5 is pressed again to discharge the semen in the vas deferens 2.

[0057] When the grip plate 5 is pressed, the elastic airbag 7 is compressed, so that the air in the elastic airbag 7 enters the fixed tube 25, and then enters the first air delivery tube 14 from the fixed tube 25, and finally enters the vas deferens 2 from the first air delivery tube 14, and the semen in the vas deferens 2 is ejected from the head into the sow's uterus. After the insemination is completed, the vas deferens 2 is pulled out of the sow's body, and then the grip plate 5 is released. During the rebound process of the grip plate 5, the push plate 10 can be driven to move upward a certain distance again, so that the semen in the syringe 3 can be quantitatively pressed into the inside of the vas deferens 2. At the same time, the elastic airbag 7 will also inhale the outside air through the first air inlet pipe during the rebound process of the grip plate 5;

[0058] When the outside of the vas deferens 2 is finally cleaned, the adjustment strip 18 can be pushed to move to the side close to the head of the vas deferens 2. At this time, the annular tube 19 moves synchronously with the adjustment strip 18, and the telescopic tube 20 is also compressed. The air in the telescopic tube 20 enters the water tank 4 through the second air pipe 16, thereby increasing the pressure in the water tank 4. The disinfectant in the water tank 4 is then input into the annular tube 19 through the water pipe 17 under the action of pressure, and finally sprayed out from the water spray hole on the annular tube 19, thereby cleaning the outer wall of the vas deferens 2. After cleaning, the adjustment strip 18 is withdrawn, thereby driving the annular tube 19 back to its original position. The telescopic tube 20 will also suck the outside air into its interior through the second air inlet pipe during the recovery process.

[0059] Embodiment 2:

[0060] Combination Figure 1 - Figure 5 Based on Example 1, this embodiment is further improved in that: a hollow rotating shaft 23 is rotatably connected to the bottom of the water tank 4, the top of the rotating shaft 23 extends to the inside of the water tank 4, and a water inlet connected to the inside of the rotating shaft 23 is opened on the top of the rotating shaft 23, the water pipe 17 is a hose, and the water pipe 17 is wound around the outer periphery of the rotating shaft 23, the other end of the water pipe 17 is fixedly connected to the rotating shaft 23, and the end of the water pipe 17 is connected to the inside of the rotating shaft 23, the water in the water tank 4 enters the water pipe 17 through the rotating shaft 23, and the setting of the rotating shaft 23 can also serve to store the water pipe 17.

[0061] The side of the adjustment bar 18 is provided with a plurality of tooth grooves. The bottom of the rotating shaft 23 extends to the inside of the mounting tube 1 and is fixed with a transmission gear 24. The transmission gear 24 meshes with the tooth grooves. The movement of the adjustment bar 18 is used to drive the rotating shaft 23 to rotate simultaneously.

[0062] The implementation principle of this embodiment is: in the process of moving the adjustment strip 18 toward the side close to the head of the vas deferens 2, the adjustment strip 18 will drive the transmission gear 24 to rotate forward, thereby driving the rotating shaft 23 to rotate forward, and the water pipe 17 on the periphery of the rotating shaft 23 is gradually unfolded. Conversely, when the adjustment strip 18 moves away from the head of the vas deferens 2, it drives the rotating shaft 23 to reverse, so that the water pipe 17 can be re-wound outside the rotating shaft 23.

[0063] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A vas deferens device for artificial insemination of sows, characterized in that: include: The insemination mechanism comprises a vas deferens and a mounting tube sleeved on the outer periphery of the tail of the vas deferens, the tail of the vas deferens extends into the interior of the mounting tube, and a connecting tube communicating with the interior of the vas deferens is fixed to the bottom of the mounting tube; The solid material mechanism comprises a placing cylinder fixed to the bottom surface of the installation cylinder and a bottom plate installed at the bottom of the placing cylinder through a connecting assembly, a syringe is placed in the placing cylinder, the liquid outlet of the syringe is matched with the connecting tube, the bottom of the placing cylinder is open, and a taking and placing groove is opened on one side of the placing cylinder; The pressing mechanism comprises a gripping plate arranged on one side of the placing cylinder, a screw rod rotatably connected to the bottom surface of the mounting cylinder, and a push plate threadedly sleeved on the outer periphery of the screw rod, the push plate is located directly below the bottom plate, the outer periphery of the screw rod is sleeved with a ratchet, the gripping plate is connected to the placing cylinder through an elastic member, and a tooth plate is fixed on the outer wall of the gripping plate, and ratchet teeth matching the ratchet wheel are installed on the tooth plate; The gas delivery mechanism includes a device installed on the outer wall of the placement tube and used to deliver gas into the vas deferens while pressing the grip plate; The cleaning mechanism comprises an annular tube movably sleeved on the outer periphery of the vas deferens, a water tank installed on the top of the mounting tube and an adjusting strip movably installed on the mounting tube, one end of the adjusting strip is fixedly connected to the annular tube, a plurality of water spray holes are opened on the inner circle of the annular tube, and the annular tube and the water tank are connected through a water delivery pipe.

2. The vas deferens device for artificial insemination of sows according to claim 1, characterized in that: The air delivery mechanism includes an elastic air bag installed on the outer wall of the placement tube, a fixed tube fixed on the outer periphery of the placement tube and a first air delivery tube installed at the tail end of the vas deferens, one end of the elastic air bag is fixedly connected to the outer wall of one side of the grip plate close to the placement tube, one end of the fixed tube is connected to the elastic air bag, a first one-way valve is installed on the first air delivery tube, and the other end of the first air delivery tube is connected to the fixed tube, a first air inlet pipe is installed on the outer periphery of the elastic air bag, and a second one-way valve is installed on the first air inlet pipe.

3. The vas deferens device for artificial insemination of sows according to claim 1, characterized in that: A groove for the piston rod of the syringe to pass through is formed on the side wall of the bottom plate, and the groove is arranged in the same direction as the taking and placing groove.

4. The vas deferens device for artificial insemination of sows according to claim 3, characterized in that: The connecting assembly includes a movable rod fixed on the top surface of the bottom plate and a limiting sleeve movably sleeved on the outer periphery of the movable rod. The limiting sleeve is fixedly connected to the outer periphery of the placement tube, and the outer periphery of the limiting sleeve is threaded with a locking bolt for locking the movable rod.

5. The vas deferens device for artificial insemination of sows according to claim 1, characterized in that: A limiting rod is fixed on the bottom surface of the bottom plate, a limiting hole matching with the limiting rod is opened on the top surface of the push plate, and the limiting rod passes through the limiting hole and extends to the bottom of the push plate.

6. The vas deferens device for artificial insemination of sows according to claim 1, characterized in that: The number of the elastic members is set to two, and the two elastic members are respectively located on both sides of the elastic airbag. The elastic member includes a buffer rod fixed on the outer wall of the grip plate close to the placement tube and a movable set of fixed tubes arranged outside one end of the buffer rod. A spring is fixed to one end of the buffer rod located in the fixed tube, and the other end of the spring is fixedly connected to the inner wall of the fixed tube.

7. The vas deferens device for artificial insemination of sows according to claim 1, characterized in that: The inner circle of the head opening of the vas deferens is provided with a plurality of hard film sheets for blocking the opening.

8. The vas deferens device for artificial insemination of sows according to claim 1, characterized in that: The adjusting strip is arranged along the axial direction of the vas deferens, and a baffle is fixed to one end of the adjusting strip away from the annular tube, a telescopic tube is sleeved on the outer periphery of the adjusting strip, both ends of the telescopic tube are sealed, one end of the telescopic tube is fixedly connected to the baffle, and the other end of the telescopic tube is fixedly connected to the outer wall of the mounting tube, a second air supply pipe communicating with the interior of the telescopic tube is fixedly arranged on the outer periphery of the telescopic tube, and the other end of the second air supply pipe is communicated with the interior of the water tank, a third one-way valve is installed on the second air supply pipe, a second air inlet pipe is installed on the outer periphery of the telescopic tube, and a fourth one-way valve is installed on the second air inlet pipe.

9. The vas deferens device for artificial insemination of sows according to claim 1, characterized in that: The bottom of the water tank is rotatably connected to a hollow rotating shaft, the top of the rotating shaft extends to the inside of the water tank, and the top of the rotating shaft is provided with a water inlet connected to the inside of the water tank. The water pipe is a hose, and the water pipe is wound around the outer circumference of the rotating shaft. The other end of the water pipe is fixedly connected to the rotating shaft, and this end of the water pipe is connected to the inside of the rotating shaft.

10. The vas deferens device for artificial insemination of sows according to claim 1, characterized in that: A plurality of tooth grooves are formed on the side of the adjusting strip, and the bottom of the rotating shaft extends to the inner side of the mounting tube and is fixed with a transmission gear, which is meshed with the tooth grooves.

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