Improved auxiliary device for yak embryo transfer operation

Abstract

The application discloses an improved auxiliary device for yak embryo transplantation operation and relates to the field of animal medicine, which comprises a base, and a limiting mechanism is arranged on the middle part of the upper surface of the base. The limiting mechanism is connected with the base. When the device is used, the user can guide the yak to stand in the middle part of the base. Then, the user controls the motor two to work by using the controller, so that the two pulleys three drive the two lead screws to rotate clockwise. When the lead screws rotate clockwise, the nuts, the placing plates and the clamping rods on the front and back sides are driven to move close to each other. When the two groups of clamping rods move close to each other, the clamping rods on the front and back sides are staggered with each other. When the two groups of clamping rods are in close contact with the abdomen of the yak, the motor two stops working. The device solves the problem that the existing auxiliary device for yak embryo transplantation operation cannot limit and fix the position of the yak when the device is used, so that the yak is easily stimulated to run during the transplantation operation, and the efficiency of the transplantation operation is affected.

Description

Technical Field

[0001] This invention relates to an auxiliary device for embryo transfer operations, and more particularly to an improved auxiliary device for yak embryo transfer operations. Background Technology

[0002] The yak (scientific name: Bos mutus or Bos grunniens, English name: wild yak) belongs to the class Mammalia, subclass Eutheria, order Artiodactyla, suborder Ruminantia, family Bovidae, and subfamily Bovininae. It is one of the unique and rare cattle breeds endemic to the Qinghai-Tibet Plateau of China and its adjacent high-altitude and subalpine cold regions. It is a herbivorous ruminant livestock. Yaks are adapted to high-altitude and cold climates and are the highest-altitude mammals (excluding humans) in the world. They are distributed in areas above 3,000 meters above sea level on the Qinghai-Tibet Plateau of China. The significance of embryo transfer lies in fully utilizing the reproductive potential of superior female yaks, shortening the generation interval, conducting progeny testing as early as possible, preserving breed resources, enabling infertile female yaks to regain fertility, promoting basic theoretical research, and meeting the needs of modern animal husbandry. Embryo transfer in yaks requires procedures such as fetal removal and transfer. Auxiliary equipment is usually required to assist in the embryo transfer process.

[0003] Currently, the auxiliary equipment used for yak embryo transfer still has some defects and shortcomings in use. The specific areas that need improvement are as follows:

[0004] 1. Existing auxiliary equipment for yak embryo transfer cannot restrict or fix the position of the yak during use, which makes the yak easily stimulated and prone to running away during the transfer operation, thus affecting the efficiency of the transfer operation.

[0005] 2. Existing auxiliary equipment for yak embryo transfer cannot restrict the yak's legs. During embryo transfer, yaks are easily stimulated and may kick the operators with their hooves in a stress response.

[0006] 3. Existing auxiliary equipment for yak embryo transfer cannot assist staff in dilating the yak vagina, making it difficult for flushing fluid to flow out of the yak uterus during procedures such as uterine flushing and embryo removal, thus affecting the embryo removal effect.

[0007] 4. Existing auxiliary equipment for yak embryo transfer cannot support the uterine flushing tube and transfer tools during use. When performing uterine flushing and transfer operations, the operator needs to hold the tube by hand to support it, which increases the workload of the transfer operator.

[0008] 5. Most of the existing auxiliary equipment for yak embryo transfer is fixed in its various structures, making it difficult for users to adjust it according to their actual needs, resulting in poor applicability. Summary of the Invention

[0009] The purpose of this invention is to provide an improved auxiliary device for yak embryo transfer to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution: an improved auxiliary device for yak embryo transfer, comprising a base, a limiting mechanism provided in the middle of the upper surface of the base, four clamping mechanisms symmetrically arranged on the limiting mechanism, all four clamping mechanisms being connected to the same transmission mechanism, the transmission mechanism being disposed inside the base, a second sliding groove being provided in the middle of the right side of the upper surface of the base, the right end of the second sliding groove being connected through to the right side of the base, and an expansion mechanism being provided inside the second sliding groove;

[0011] The left side of the upper surface of the base is fixedly connected to the bottom surface of the fixing plate, the right side of the fixing plate is fixedly connected to the left side of the feeding trough, and a controller is provided on the limiting mechanism.

[0012] As a preferred embodiment of the present invention, the limiting mechanism includes two placement plates, the opposite surfaces of the two placement plates are respectively fixedly connected to two sets of locking rods, both sets of locking rods are arc-shaped and staggered, the bottom surface of each placement plate is fixedly connected to the upper surface of two nuts, the four nuts are paired and slidably connected in two slide grooves, both slide grooves are opened on the upper surface of the base, and the front surface of the front placement plate is fixedly connected to the controller.

[0013] As a preferred embodiment of the present invention, the four nuts are connected in pairs to two lead screws. The rear optical shafts of the two lead screws are movably connected to the rear inner walls of the two slide grooves through rolling bearings. The front optical shafts of the two lead screws pass through the front surface of the base through rolling bearings and are fixedly connected to two pulleys. The two pulleys are connected by belt drive. The front end of the right lead screw is fixedly connected to the output shaft of the motor. The motor is fixedly connected to the mounting base, which is fixedly connected to the front surface of the base. The input end of the motor is electrically connected to the output end of the controller. Each lead screw has two sections of threads with opposite helical directions.

[0014] As a preferred embodiment of the present invention, each clamping mechanism includes a mounting plate. One end of the mounting plate is fixedly connected to the side of the placement plate in the limiting mechanism. The other end of the mounting plate has a mounting groove. The upper and lower inner sides of the mounting groove are movably connected to the two ends of the rotating shaft through rolling bearings. The rotating shaft is fixedly connected to one end of the rotating plate. The other end of the rotating plate has two connecting holes, and the two connecting holes are movably connected to one end of two connecting rods, respectively.

[0015] As a preferred embodiment of the present invention, the other ends of the two connecting rods are fixedly connected to one side of the clamping plate. Each side of the connecting rod overlaps with the opposite face of the two limiting blocks. The opposite faces of the two limiting blocks are fixedly connected to the inner side of the same limiting ring. The two limiting rings are movably connected to the side of the rotating plate through rolling bearings and correspond to the two connecting holes respectively. The upper and lower sides of the outer surface of each connecting rod are fixedly connected to two sets of arc-shaped rings respectively. The side of the clamping plate is provided with an arc-shaped groove. The left and right sides of the clamping plate are provided with through grooves and communicate with the arc-shaped grooves. The two through grooves are movably connected to the same baffle. The side of the baffle is fixedly connected to one end of the two electric push rods. The other ends of the two electric push rods are fixedly connected to the inner side of the fixing frame. The side of the fixing frame is fixedly connected to the side of the clamping plate. The input ends of the two electric push rods are electrically connected to the output end of the controller.

[0016] In a preferred embodiment of the present invention, the bottom end of the rotating shaft is fixedly connected to the worm gear, the worm gear meshes with the worm, the two ends of the worm are movably connected to two support plates via rolling bearings, the upper surfaces of the two support plates are fixedly connected to the bottom surface of the mounting plate, the front end of the worm is fixedly connected to the rear end of the fixed cylinder, a connecting groove is provided inside the fixed cylinder, one end of the connecting rod is movably connected to the connecting groove, one end of the connecting rod and the connecting groove are both in a straight line, the other end of the connecting rod is movably connected to the upper end of the fixed frame and fixedly connected to the pulley, and the bottom end of the fixed frame is fixedly connected to the side of the base.

[0017] As a preferred embodiment of the present invention, the transmission mechanism includes two transmission shafts, both of which are movably connected to the base via rolling bearings. Pulleys are fixedly connected to the front and rear ends of each transmission shaft. The two front pulleys are connected to two pulleys in two co-directional clamping mechanisms via belts, and the two rear pulleys are connected to two opposing pulleys via belts. Gears are provided on the front of each transmission shaft, meshing with each other. The right-side gear meshes with a gear. The gear is fixedly connected to the output shaft of a motor, which is fixedly connected to the front surface of the base. The input end of the motor is electrically connected to the output end of the controller.

[0018] As a preferred embodiment of the present invention, the expansion mechanism includes a sliding plate, the bottom end of which is slidably connected to a second sliding groove. The front and rear sides of the sliding plate are respectively fixedly connected to the opposite surfaces of two first connecting plates. The bottom surface of each first connecting plate is fixedly connected to the upper end of two first sliding rods. The bottom ends of the four first sliding rods are slidably connected to four first through holes. The four first through holes are paired and respectively opened on the upper surface of two positioning blocks. The bottom ends of the two positioning blocks overlap with the upper surface of the base. The two positioning blocks are T-shaped. Springs are sleeved on the four first sliding rods. The four springs are paired and their two ends are respectively fixedly connected to the bottom surface of the two first connecting plates and the upper surface of the two positioning blocks. The bottom end of the sliding plate and the second sliding groove are both T-shaped.

[0019] As a preferred embodiment of the present invention, the upper surface of the sliding plate has two through holes II, and the two through holes II are respectively slidably connected to the bottom ends of two sliding rods II. The upper ends of the two sliding rods II are fixedly connected to the bottom surface of the same connecting plate II. The middle part of the connecting plate II has a limiting hole II that connects its left and right sides through it. An expansion tube is slidably connected in the limiting hole II. A fixing ring is fixedly connected to the right side of the outer surface of the expansion tube. The front and rear sides of the left side of the fixing ring are respectively fixedly connected to the right ends of two insert rods. The two insert rods are slidably connected in two limiting holes I. Both limiting holes I are opened in the connecting plate II and connect their left and right sides through it.

[0020] As a preferred embodiment of the present invention, the right side of the expansion tube is fixedly connected to the annular tube, the rear end of the side of the annular tube is fixedly connected to the front end of the first connecting tube, the rear end of the first connecting tube is inserted into the air outlet pipe of the air pump, a solenoid valve is provided inside the first connecting tube, the left side of the annular tube is fixedly connected to the right end of four second connecting tubes, the left ends of the four second connecting tubes all pass through the interior of the expansion tube and are respectively fixedly connected to the right end of the four airbags, the four airbags are respectively fixedly connected in four placement slots, the outer surfaces of the four airbags are also respectively fixedly connected to the sides of four support plates, the four support plates are respectively movably connected in four placement slots, the four placement slots are all opened on the outer surface of the expansion tube, the air pump is fixedly connected to the right side of the second connecting plate, and the input ends of the air pump and the solenoid valve are electrically connected to the output end of the controller.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. This invention connects to the base by setting a limiting mechanism. When using this device, the user can guide the yak to stand in the middle of the base. Then, the user controls the motor two to work through the controller, which drives the two lead screws to rotate clockwise using two pulleys three. When the lead screws rotate clockwise, they drive the nuts, placement plates and clamps on the front and rear sides to move closer to each other. When the two sets of clamps move closer to each other, the clamps on the front and rear sides interlock. When both sets of clamps are in close contact with the yak's abdomen, the motor two stops working. In this way, the movement of the yak is restricted by the contact between the two sets of interlocking clamps and the yak's body, thereby avoiding the yak being stimulated and running away during the embryo transfer operation, which would affect the transfer efficiency.

[0023] 2. This invention sets up four clamping mechanisms connected to a limiting mechanism, and a transmission mechanism connected to the four clamping mechanisms simultaneously. After the yak's body is fixed using the limiting mechanism, the user can control the motor to operate via the controller. This motor drives the right transmission shaft to rotate via gear one and right gear two. Furthermore, the two transmission shafts rotate in opposite directions via the two gears two. Simultaneously, the multiple pulleys one and two drive the rotating plates on the left, right, front, and rear sides to rotate in opposite directions. All four rotating plates and clamping plates rotate inwards towards the base. When the arc-shaped groove on the clamping plate contacts the yak's leg, the motor stops operating. Then, the user controls the electric push rod to extend and push the baffle to connect with the through groove, fixing the yak's leg in the arc-shaped groove. This prevents the yak from feeling uncomfortable and developing a stress response during embryo transfer, thus avoiding kicking the operator with its hooves. This device improves the safety of the operator during the transfer process. Furthermore, the multiple clamping mechanisms further fix the yak's position by securing its legs, preventing the yak from escaping the limiting mechanism.

[0024] 3. This invention connects the expansion mechanism to the base, and a second sliding groove is provided on the base to connect with the expansion mechanism. During the use of this device, the user can connect the sliding plate to the second sliding groove and push the sliding plate to move left and right so that the expansion tube enters the yak's vagina. Then, the user can control the air pump to work and open the solenoid valve through the controller. At this time, the air pump fills the airbag with gas through the first connecting pipe, the ring pipe and the second connecting pipe. When the airbag expands, it pushes the support plate to move outward of the placement groove to expand the yak's vagina. Thus, when performing operations such as uterine insemination and fetal removal on the yak, the uterine insemination fluid flows out through the gap between the expansion tube and the vaginal wall, thereby further increasing the functionality of this device.

[0025] 4. This invention features a dilation tube connected to a limiting hole 2 within the dilation mechanism. When using this device for embryo transfer assistance, the user can insert the dilation tube into the yak's vagina to dilate it. Then, the user can insert instruments such as flushing tubes and transfer tubes into the yak's body through the dilation tube. The dilation tube can also be used to support the instruments inserted into the yak's body, thus avoiding the need for staff to hold the instruments in place for extended periods, thereby reducing the workload of the staff.

[0026] 5. This invention includes a connecting rod, an arc-shaped ring, a connecting hole, a limiting ring, and a limiting block within the clamping mechanism to connect the clamping plate and the rotating plate. When using the clamping mechanism to clamp and fix the yak's leg, the user can rotate the limiting ring to disengage the limiting block from the arc-shaped ring. At this time, pulling the clamping plate causes the connecting rod to slide left and right within the connecting hole, allowing the user to adjust the distance between the left and right clamping plates according to the yak's body shape and leg position. This allows the arc-shaped groove to fit snugly against the yak's leg and fix it in place when the clamping plate rotates. Simultaneously, by sliding the sliding plate and the second sliding groove, and by connecting the second connecting plate and the second sliding rod with the second through hole, the user can easily adjust the left and right and up and down positions of the expansion tube. This allows the expansion tube to align with the yak's external genitalia to expand the yak's vagina. This allows the device to be adjusted according to actual needs during use, thereby improving its applicability. Attached Figure Description

[0027] Figure 1 This is a front view structural diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the limiting mechanism structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the lead screw structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the clamping mechanism of the present invention;

[0031] Figure 5 This is a schematic diagram of the clamping plate structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the connection hole structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the fixed cylinder structure of the present invention;

[0034] Figure 8 This is a schematic diagram of the transmission mechanism structure of the present invention;

[0035] Figure 9 This is a schematic diagram of the expansion and support mechanism of the present invention;

[0036] Figure 10 This is a schematic diagram of the expansion tube structure of the present invention;

[0037] Figure 11 This is a schematic diagram of the support plate structure of the present invention;

[0038] Figure 12 This is a schematic diagram of the connecting plate II structure of the present invention.

[0039] In the diagram: 1. Base, 2. Fixing plate, 3. Feeding trough, 4. Clamping mechanism, 41. Mounting plate, 42. Mounting groove, 43. Belt pulley one, 44. Fixing bracket one, 45. Fixing cylinder, 46. Worm gear, 47. Rotating plate, 48. Connecting rod one, 49. Clamping plate, 410. Fixing bracket two, 411. Baffle, 412. Arc groove, 413. Rotating shaft, 414. Electric push rod, 415. Through groove, 416. Arc ring, 417. Limiting ring, 418. Limiting block, 419. Connecting hole, 420. Support plate, 421. Worm gear, 422. Connecting groove, 423. Connecting rod two, 5. Transmission mechanism, 51. Transmission shaft, 52. Motor one, 53. Gear one, 54. Gear two, 55. Belt Wheel 2, 6 Limiting Mechanism, 61 Placement Plate, 62 Clamping Rod, 63 Nut, 64 Lead Screw, 65 Mounting Base, 66 Motor 2, 67 Belt Pulley 3, 7 Controller, 8 Slide Groove 1, 9 Expanding Support Mechanism, 91 Sliding Plate, 92 Positioning Block, 93 Through Hole 1, 94 Spring, 95 Slide Rod 1, 96 Connecting Plate 1, 97 Through Hole 2, 98 Slide Rod 2, 99 Connecting Plate 2, 910 Expanding Support Tube, 911 Fixing Ring, 912 Air Pump, 913 Placement Groove, 914 Support Plate, 915 Insert Rod, 916 Ring Tube, 917 Connecting Tube 1, 918 Airbag, 919 Connecting Tube 2, 920 Limiting Hole 1, 921 Limiting Hole 2, 10 Slide Groove 2. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figure 1-12 The present invention provides a technical solution for an improved auxiliary device for yak embryo transfer: including a base 1, a limiting mechanism 6 is provided in the middle of the upper surface of the base 1, four clamping mechanisms 4 are symmetrically arranged on the limiting mechanism 6, and the four clamping mechanisms 4 are all connected to the same transmission mechanism 5. The transmission mechanism 5 is located inside the base 1. A second sliding groove 10 is provided in the middle of the right side of the upper surface of the base 1. The right end of the second sliding groove 10 is connected to the right side of the base 1. An expansion mechanism 9 is provided in the second sliding groove 10.

[0042] The left side of the upper surface of the base 1 is fixedly connected to the bottom surface of the fixing plate 2, and the right side of the fixing plate 2 is fixedly connected to the left side of the feeding trough 3. By setting the fixing plate 2 on the left side of the base 1, the left side of the base 1 is blocked by the fixing plate 2 to restrict the movement of the yak and prevent the yak from leaving the base 1 from the left side. At the same time, by setting the feeding trough 3 on the fixing plate 2, the user can add an appropriate amount of food to the feeding trough 3 when using this device to assist in the transplant operation, so that the yak can eat during the transplant, divert its attention and reduce stress response. The limiting mechanism 6 is equipped with a controller 7.

[0043] The limiting mechanism 6 includes two placement plates 61, the opposite surfaces of which are fixedly connected to two sets of clamping rods 62. Both sets of clamping rods 62 are arc-shaped and staggered. By staggering the clamping rods 62, they engage when the two placement plates 61 approach each other, thus clamping the yak's body and securing it to prevent it from escaping during transplantation and affecting the efficiency of the procedure. The bottom surface of each placement plate 61 is fixedly connected to the upper surface of two nuts 63, with the four nuts 63 arranged in pairs. The components are slidably connected in two slide grooves 8. By slidably connecting the nut 63 in the slide groove 8, the movement of the nut 63 is restricted by the sliding connection between the slide groove 8 and the nut 63. This prevents the screw 64 from rotating and affecting the forward and backward movement of the nut 63. At the same time, setting the screw 64 in the slide groove 8 can also hide the screw 64, thus preventing the screw 64 from protruding above the base 1 and affecting the movement of the yak on the base 1. Both slide grooves 8 are opened on the upper surface of the base 1, and the front surface of the front placement plate 61 is fixedly connected to the controller 7.

[0044] Four nuts 63 are connected in pairs and threaded onto two lead screws 64. The rear shafts of the two lead screws 64 are movably connected to the rear inner walls of two slide grooves 8 via rolling bearings. The front shafts of the two lead screws 64 pass through the front surface of the base 1 via rolling bearings and are fixedly connected to two pulleys 67. The two pulleys 67 are connected by a belt drive. The front end of the right lead screw 64 is fixedly connected to the output shaft of the motor 66. By setting pulleys 67 on both lead screws 64 and connecting one lead screw 64 to the output shaft of the motor 66, when the motor 66 drives the lead screw 64 to rotate, the two pulleys 67 can be used to drive the rotation of the lead screw 64. The transmission of 67 drives the other side lead screw 64 to rotate synchronously, thereby reducing the power source of this device and improving resource utilization. The second motor 66 is fixedly connected to the mounting base 65, which is fixedly connected to the front surface of the base 1. The input end of the second motor 66 is electrically connected to the output end of the controller 7. Each lead screw 64 has two sections of threads with opposite helical directions. By having two sections of threads with opposite helical directions on the lead screw 64, the two nuts 63 on the same lead screw 64 move in opposite directions when the lead screw 64 rotates. The distance between the front and rear side placement plates 61 and the clamping rod 62 is adjusted by the opposite movement of the nuts 63 on the front and rear sides.

[0045] Each clamping mechanism 4 includes a mounting plate 41. One end of the mounting plate 41 is fixedly connected to the side of the placement plate 61 in the limiting mechanism 6. The other end of the mounting plate 41 is provided with a mounting groove 42. The upper and lower inner sides of the mounting groove 42 are movably connected to the two ends of the rotating shaft 413 through rolling bearings. The rotating shaft 413 is fixedly connected to one end of the rotating plate 47. The other end of the rotating plate 47 is provided with two connecting holes 419. The two connecting holes 419 are movably connected to one end of two connecting rods 48 respectively.

[0046] The other ends of the two connecting rods 48 are fixedly connected to one side of the clamping plate 49. The clamping plate 49 is connected to the rotating plate 47 by setting the connecting rods 48 and the connecting holes 419, so that the user can pull the clamping plate 49 to make the connecting rods 48 slide in the connecting holes 419. This allows the user to adjust the position of the clamping plate 49 according to the position of the yak's leg. The side of each connecting rod 48 overlaps with the opposite face of the two limiting blocks 418. The opposite faces of the two limiting blocks 418 are fixedly connected to the same limiting block. On the inner side of ring 417, two limiting rings 417 are movably connected to the side of rotating plate 47 via rolling bearings and correspond to two connecting holes 419 respectively. The upper and lower sides of the outer surface of each connecting rod 48 are fixedly connected to two sets of arc-shaped rings 416 respectively. By providing arc-shaped rings 416 on connecting rod 48 and limiting rings 417 on rotating plate 47, and by providing limiting blocks 418 within limiting rings 417 that connect to arc-shaped rings 416, the connection between limiting blocks 418 and arc-shaped rings 416 is utilized. The connecting rod 48 is fixed at its position. An arc-shaped groove 412 is provided on the side of the clamping plate 49. Through slots 415 are provided on both the left and right sides of the clamping plate 49 and communicate with the arc-shaped groove 412. Both through slots 415 are movably connected to the same baffle 411. The side of the baffle 411 is fixedly connected to one end of two electric push rods 414. By providing through slots 415 on the left and right sides of the clamping plate 49 and installing baffles 411 within the through slots 415 to connect with the electric push rods 414, it is easier to... The user uses the extension and retraction of the electric push rod 414 to move the baffle 411 left and right, and then uses the connection between the baffle 411 and the through grooves 415 on both sides to seal the arc-shaped groove 412, thereby preventing the yak's leg from detaching from the arc-shaped groove 412 and affecting the fixation effect on the yak's leg. The other end of the two electric push rods 414 is fixedly connected to the inner side of the fixing frame 410. The side of the fixing frame 410 is fixedly connected to the side of the clamp 49. The input end of the two electric push rods 411 is electrically connected to the output end of the controller 7.

[0047] The bottom end of the rotating shaft 413 is fixedly connected to the worm gear 46, which meshes with the worm 421. The two ends of the worm 421 are movably connected to two support plates 420 via rolling bearings. By providing the worm gear 46 at the bottom of the rotating shaft 413 and the worm 421 meshing with it, the rotating shaft 413 is driven to rotate by the meshing connection between the worm 421 and the worm gear 46. Simultaneously, the unidirectional and self-locking nature of the meshing transmission between the worm gear 46 and the worm 421 is used to fix the rotating shaft 413, preventing the yak's legs from pushing the clamp plate 49 and the rotating shaft 413 to rotate. The upper surfaces of both support plates 420 are fixedly connected to the bottom surface of the mounting plate 41. The front end of the worm 421 is connected to the fixed cylinder 45. The rear end is fixedly connected, and a connecting groove 422 is provided inside the fixed cylinder 45. One end of the connecting rod 423 is movably connected to the connecting groove 422. Both the connecting rod 423 and the connecting groove 422 are set in a straight line. The fixed cylinder 45 is connected to the worm gear 421, and the connecting rod 423 is movably connected inside the fixed cylinder 45. When the motor 66 drives the placement plate 61 to move back and forth, the connecting rod 423 can slide inside the fixed cylinder 45, thereby maintaining the transmission between the transmission mechanism 5 and the clamping mechanism 4. The other end of the connecting rod 423 is movably connected to the upper end of the fixed frame 44 through a rolling bearing and is fixedly connected to the pulley 43. The bottom end of the fixed frame 44 is fixedly connected to the side of the base 1.

[0048] The transmission mechanism 5 includes two transmission shafts 51, both of which are movably connected to the base 1 via rolling bearings. Pulleys 55 are fixedly connected to the front and rear ends of each transmission shaft 51. The two front pulleys 55 are connected to two pulleys 43 of the two clamping mechanisms 44 in the same direction via belts. By simultaneously connecting the transmission mechanism 5 to four clamping mechanisms 4, the user can control the motor 52 via the controller 7. The right transmission shaft 51 is rotated by the transmission of gears 53 and 54, and the two transmission shafts 51 rotate in opposite directions via the transmission of the two gears 54. At this time, the left and right rotating plates 47 rotate in opposite directions via the transmission of multiple pulleys 43 and 55. All four rotating plates 47 and clamping plates 49 rotate inwards towards the base 1. The rotation stops when the arc-shaped groove 412 on the clamping plate 49 contacts the yak's leg. The motor 52 is stopped from working, thereby using multiple clamping mechanisms 4 to fix and clamp the yak's leg. The two rear pulleys 55 are connected to the two opposing rear pulleys 43 via belts. Gears 54 are provided on the front side of the two drive shafts 51, and the two gears 54 are meshed together. By providing gears 54 on both drive shafts 51 and meshing them with each other, when the motor 52 drives the right drive shaft 51 to rotate, the meshing of the two gears 54 drives the two drive shafts 51 to rotate in opposite directions. In turn, the multiple pulleys 55 and pulleys 43 drive the multiple clamping plates 49 to rotate in opposite directions. The right gear 54 meshes with gear 53, and gear 53 is fixedly connected to the output shaft of the motor 52. The motor 52 is fixedly connected to the front surface of the base 1. The input end of the motor 52 is electrically connected to the output end of the controller 7.

[0049] The expansion mechanism 9 includes a sliding plate 91. The bottom end of the sliding plate 91 is slidably connected to the slide groove 10. The front and rear sides of the sliding plate 91 are fixedly connected to the opposite surfaces of two connecting plates 96, respectively. The bottom surface of each connecting plate 96 is fixedly connected to the upper ends of two sliding rods 95. The bottom ends of the four sliding rods 95 are slidably connected to four through holes 93. The four through holes 93 are arranged in pairs and are respectively opened on the upper surface of two positioning blocks 92. The bottom ends of the two positioning blocks 92 overlap with the upper surface of the base 1. Both positioning blocks 92 are T-shaped. The four sliding rods Springs 94 are fitted onto each of the slide rods 95 and through holes 93. The positioning block 92 is connected to the connecting plate 96. Springs 94 are fitted onto the slide rods 95, so that the spring force of the springs 94 applies downward pressure to the positioning block 92, thereby making the positioning block 92 in close contact with the base 1 and restricting the position of the sliding plate 91. The four springs 94 are in pairs and their two ends are fixedly connected to the bottom surface of the two connecting plates 96 and the upper surface of the two positioning blocks 92, respectively. The bottom end of the sliding plate 91 and the slide groove 10 are both T-shaped.

[0050] Two through holes 97 are provided on the upper surface of the sliding plate 91. The two through holes 97 are slidably connected to the bottom ends of two sliding rods 98, respectively. The upper ends of the two sliding rods 98 are fixedly connected to the bottom surface of the same connecting plate 99. By slidably connecting the sliding plate 91 to the sliding groove 10, and by providing the through holes 97 and sliding rods 98 to connect the connecting plate 99 to the sliding plate 91, the user can easily adjust the left-right and up-down position of the expansion tube 910. This allows the expansion tube 910 to expand the yak's external genitalia corresponding to the yak's vagina, enabling the device to be adjusted according to actual needs during use. A limiting hole 921 is provided in the middle of the connecting plate 99, connecting its left and right sides. The expansion tube 910 is slidably connected within the limiting hole 921. By providing the limiting hole 921 on the connecting plate 99 and connecting the expansion tube... The expansion tube 910 is movably connected within the limiting hole 921, facilitating the user's installation and disassembly of the expansion tube 910. This also allows the user to easily remove the expansion tube 910 after use for cleaning and disinfection. A fixing ring 911 is fixedly connected to the right side of the outer surface of the expansion tube 910. The left front and rear sides of the fixing ring 911 are respectively fixedly connected to the right ends of two insert rods 915. The two insert rods 915 are slidably connected within the two limiting holes 920. By setting the insert rods 915 on the fixing ring 911 and movably connecting them within the limiting holes 920, the position of the expansion tube 910 is fixed using the connection between the insert rods 915 and the limiting holes 920, thus preventing the expansion tube 910 from rolling within the limiting holes 920 and affecting its stability. Both limiting holes 920 are opened within the connecting plate 99 and extend through its left and right sides.

[0051] The right side of the expansion tube 910 is fixedly connected to the annular tube 916. The rear end of the side of the annular tube 916 is fixedly connected to the front end of the connecting tube 917. The rear end of the connecting tube 917 is inserted into the air outlet pipe of the air pump 912. A solenoid valve is installed inside the connecting tube 917. The left side of the annular tube 916 is fixedly connected to the right end of four connecting tubes 919. The left ends of the four connecting tubes 919 pass through the interior of the expansion tube 910 and are fixedly connected to the right ends of four airbags 918 respectively. The four airbags 918 are fixedly connected in four placement slots 913 respectively. The outer surfaces of the four airbags 918 are also fixedly connected to the sides of four support plates 914 respectively. By opening placement slots 913 on the outer surface of the expansion tube 910, and placing airbags 918 and support plates 914 in the placement slots 913, the expansion tube 910... After being inserted into the yak's vagina, the user can control the air pump 912 and open the solenoid valve through the controller 7. At this time, the air pump 912 fills the air bag 918 with gas through the connecting pipe 1 917, the annular pipe 916 and the connecting pipe 2 919. When the air bag 918 expands, it pushes the support plate 914 to move outward of the placement slot 913 to expand the yak's vagina. This allows the uterine flushing fluid to flow out through the gap between the expansion tube 910 and the vaginal wall during operations such as uterine flushing and fetal evacuation. The four support plates 914 are movably connected to the four placement slots 913, and the four placement slots 913 are all opened on the outer surface of the expansion tube 910. The air pump 912 is fixedly connected to the right side of the connecting plate 2 99. The input ends of the air pump 912 and the solenoid valve are electrically connected to the output end of the controller 7.

[0052] The operation steps of this invention are as follows:

[0053] When using this device to assist in yak embryo transfer, the user first adds an appropriate amount of food to the feeding trough 3. Then, the user guides the yak to stand in the middle of the base 1, with its head facing the fixed plate 2. When the yak's head moves to the feeding trough 3, the user controls the motor 66 via the controller 7 to drive the two lead screws 64 to rotate clockwise using two pulleys 67. When the lead screws 64 rotate clockwise, they cause the nuts 63 on the front and rear sides, the placement plate 61, and the clamping rods 62 to move closer together. When the two sets of clamping rods 62 move closer together, the clamping rods 62 on the front and rear sides interlock. When the clamping rods 62 are in close contact with the yak's abdomen, the motor 66 stops working. Then, the user adjusts the clamping mechanism 4 according to the yak's body size and leg position. At this time, the user can rotate the limiting ring 417 to make the limiting block 418 disengage from the arc ring 416 and rotate it into the gap between the upper and lower arc rings 416. Then, the user pulls the clamping plate 49 to drive the connecting rod 48 to slide left and right in the connecting hole 419. When the clamping plate 49 moves to the appropriate position, the user stops pulling the clamping plate 49 and rotates the limiting ring 417 again to make the limiting block 418 rotate between the left and right arc rings 416.

[0054] Then, the user controls the motor 52 via controller 7. The right drive shaft 51 rotates via gear 53 and right gear 54, and the two drive shafts 51 rotate in opposite directions via gears 54. Simultaneously, multiple pulleys 43 and 55, along with connecting rod 423, fixed cylinder 45, worm gear 421, worm wheel 46, and rotating shaft 413, drive the left, right, front, and rear rotating plates 47 to rotate in opposite directions. At this time, all four rotating plates 47 and clamping plates 49 rotate inwards towards the base 1. The motor 52 stops operating when the arc-shaped groove 412 on the clamping plate 49 contacts the yak's leg. The user then controls the motor via controller 7. 7. The electric push rod 414 extends to push the baffle 411 to connect with the through groove 415 to fix the yak leg in the arc groove 412. After the yak is fixed by the limiting mechanism 6 and the clamping mechanism 4, the user can perform related transplantation operations. When it is necessary to use the expansion mechanism 9 to expand the yak's vagina, the user takes the expansion device 9, moves it as a whole, and pulls the positioning block 92 upward to squeeze the spring 94. Then the user puts the sliding plate 91 into the second slide groove 10 and moves it to fit against the yak's buttocks. At this time, the user slowly releases the positioning block 92 and uses the elastic force of the spring 94 to push the positioning block 92 downward to fit against the base 1 to fix the position of the sliding plate 91.

[0055] The user then inserts the detoxified dilator tube 910 into the yak's vagina through the limiting hole 921 to dilate the vagina. The insertion rod 915 is connected to the limiting hole 920 to restrict the position of the dilator tube 910. Once the dilator tube 910 has reached the appropriate depth inside the yak's vagina, the user stops pushing it. At this point, the user can insert the flushing tube and transplant tube into the yak's body through the dilator tube 910. While flushing the yak's uterus, the user can connect the connecting tube 917 to the air pump 91. The air outlet pipe of 2 is connected, and the solenoid valve is opened and the air pump 912 is controlled to work through the controller 7. At this time, the air pump 912 fills the air bag 918 with gas through the connecting pipe 1 917, the ring pipe 916 and the connecting pipe 2 919. At this time, the air bag 918 expands and pushes the support plate 914 to disengage from the placement groove 913 to expand the yak vagina. When the support plate 914 pushes the yak vagina to expand to a suitable degree, the solenoid valve and the air pump 912 are closed. Then, during the flushing process, the flushing fluid in the yak uterus is discharged through the gap between the expansion pipe 910 and the vaginal wall.

[0056] In the description of this invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0057] In this invention, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements or an interaction between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An improved auxiliary device for yak embryo transfer, comprising a base (1), characterized in that: A limiting mechanism (6) is provided in the middle of the upper surface of the base (1). Four clamping mechanisms (4) are symmetrically arranged on the limiting mechanism (6). All four clamping mechanisms (4) are connected to the same transmission mechanism (5). The transmission mechanism (5) is located inside the base (1). A second sliding groove (10) is provided in the middle of the right side of the upper surface of the base (1). The right end of the second sliding groove (10) is connected to the right side of the base (1). An expansion mechanism (9) is provided in the second sliding groove (10). The left side of the upper surface of the base (1) is fixedly connected to the bottom surface of the fixing plate (2), the right side of the fixing plate (2) is fixedly connected to the left side of the feeding trough (3), and the controller (7) is provided on the limiting mechanism (6). Each of the clamping mechanisms (4) includes a mounting plate (41). One end of the mounting plate (41) is fixedly connected to the side of the placement plate (61) in the limiting mechanism (6). The other end of the mounting plate (41) is provided with a mounting groove (42). The upper and lower inner sides of the mounting groove (42) are movably connected to both ends of the rotating shaft (413) through rolling bearings. The rotating shaft (413) is fixedly connected to one end of the rotating plate (47). The other end of the rotating plate (47) is provided with two connecting holes (419). The two connecting holes (419) are movably connected to one end of two connecting rods (48) respectively. The other ends of the two connecting rods (48) are fixedly connected to one side of the clamping plate (49). The side of each connecting rod (48) overlaps with the opposite face of the two limiting blocks (418). The opposite faces of the two limiting blocks (418) are fixedly connected to the inner side of the same limiting ring (417). The two limiting rings (417) are movably connected to the side of the rotating plate (47) through rolling bearings and correspond to the two connecting holes (419) respectively. The upper and lower sides of the outer surface of each connecting rod (48) are fixedly connected to two sets of arc rings (416) respectively. The side of the clamping plate (49) is provided with an arc ring. The groove (412) and the clamping plate (49) are provided with through grooves (415) on both sides and are connected to the arc-shaped groove (412). The two through grooves (415) are movably connected to the same baffle (411). The side of the baffle (411) is fixedly connected to one end of two electric push rods (414). The other end of the two electric push rods (414) is fixedly connected to the inner side of the fixing frame two (410). The side of the fixing frame two (410) is fixedly connected to the side of the clamping plate (49). The input end of the two electric push rods (414) is electrically connected to the output end of the controller (7). The bottom end of the rotating shaft (413) is fixedly connected to the worm wheel (46), the worm wheel (46) is meshed with the worm (421), the optical shafts at both ends of the worm (421) are movably connected to the two support plates (420) respectively through rolling bearings, the upper surfaces of the two support plates (420) are fixedly connected to the bottom surface of the mounting plate (41), the front end of the worm (421) is fixedly connected to the rear end of the fixed cylinder (45), the fixed cylinder (45) is provided with a connecting groove (422), the connecting groove (422) is movably connected to one end of the connecting rod two (423), one end of the connecting rod two (423) and the connecting groove (422) are both set in a straight line, the other end of the optical shaft of the connecting rod two (423) is movably connected to the upper end of the fixed frame one (44) through rolling bearings and is fixedly connected to the pulley one (43), the bottom end of the fixed frame one (44) is fixedly connected to the side of the base (1); The transmission mechanism (5) includes two transmission shafts (51). Both transmission shafts (51) are movably connected to the base (1) through rolling bearings. Both ends of the two transmission shafts (51) are fixedly connected to pulleys (55). The two pulleys (55) on the front side are connected to the two pulleys (43) in the two clamping mechanisms (44) on the front side through belts. The two pulleys (55) on the rear side are connected to the two opposing pulleys (43) on the rear side through belts. Gears (54) are provided on the front side of both transmission shafts (51). The two gears (54) are meshed with each other. The gear (54) on the right side is meshed with gear (53). Gear (53) is fixedly connected to the output shaft of motor (52). Motor (52) is fixedly connected to the front surface of the base (1). The input end of motor (52) is electrically connected to the output end of controller (7). The expansion mechanism (9) includes a sliding plate (91), the bottom end of which is slidably connected to the second slide groove (10). The front and rear sides of the sliding plate (91) are respectively fixedly connected to the opposite surfaces of two connecting plates (96). The bottom surface of each connecting plate (96) is fixedly connected to the upper end of two sliding rods (95). The bottom ends of the four sliding rods (95) are slidably connected to four through holes (93). The four through holes (93) are arranged in pairs and are respectively opened on the upper surface of two positioning blocks (92). The bottom ends of the two positioning blocks (92) overlap with the upper surface of the base (1). The two positioning blocks (92) are T-shaped. Springs (94) are sleeved on the four sliding rods (95). The four springs (94) are arranged in pairs and their two ends are respectively fixedly connected to the bottom surface of the two connecting plates (96) and the upper surface of the two positioning blocks (92). 1) The bottom end and the second slide groove (10) are both T-shaped. The upper surface of the sliding plate (91) has two through holes (97). The two through holes (97) are slidably connected to the bottom ends of the two slide rods (98). The upper ends of the two slide rods (98) are fixedly connected to the bottom surface of the same connecting plate (99). The middle part of the connecting plate (99) has a limiting hole (921) that connects its left and right sides. The limiting hole (921) is slidably connected to the expansion tube (910). The right side of the outer surface of the expansion tube (910) is fixedly connected to a fixing ring (911). The front and rear sides of the left side of the fixing ring (911) are fixedly connected to the right ends of the two insert rods (915). The two insert rods (915) are slidably connected to the two limiting holes (920). The two limiting holes (920) are both opened in the connecting plate (99) and their left and right sides are connected.

2. The improved auxiliary device for yak embryo transfer according to claim 1, characterized in that: The limiting mechanism (6) includes two placement plates (61). The opposite surfaces of the two placement plates (61) are fixedly connected to two sets of locking rods (62). Both sets of locking rods (62) are arc-shaped and staggered. The bottom surface of each placement plate (61) is fixedly connected to the upper surface of two nuts (63). The four nuts (63) are in pairs and slidably connected in two slide grooves (8). Both slide grooves (8) are opened on the upper surface of the base (1). The front surface of the front placement plate (61) is fixedly connected to the controller (7).

3. The improved auxiliary device for yak embryo transfer according to claim 2, characterized in that: The four nuts (63) are connected in pairs and threaded to the two lead screws (64). The rear optical shafts of the two lead screws (64) are movably connected to the rear inner walls of the two slide grooves (8) through rolling bearings. The front optical shafts of the two lead screws (64) pass through the front surface of the base (1) through rolling bearings and are fixedly connected to the two pulleys (67) respectively. The two pulleys (67) are connected by belt drive. The front end of the right lead screw (64) is fixedly connected to the output shaft of the motor (66). The motor (66) is fixedly connected to the mounting base (65). The mounting base (65) is fixedly connected to the front surface of the base (1). The input end of the motor (66) is electrically connected to the output end of the controller (7). Each lead screw (64) has two sections of threads with opposite spiral directions.

4. The improved auxiliary device for yak embryo transfer according to claim 1, characterized in that: The right side of the expansion tube (910) is fixedly connected to the annular tube (916). The rear end of the side of the annular tube (916) is fixedly connected to the front end of the connecting tube (917). The rear end of the connecting tube (917) is inserted into the air outlet of the air pump (912). A solenoid valve is installed inside the connecting tube (917). The left side of the annular tube (916) is fixedly connected to the right end of the four connecting tubes (919). The left ends of the four connecting tubes (919) pass through the interior of the expansion tube (910) and are respectively fixed to the right end of the four airbags (918). The four airbags (918) are fixedly connected in the four placement slots (913), and the outer surfaces of the four airbags (918) are also fixedly connected to the sides of the four support plates (914). The four support plates (914) are movably connected in the four placement slots (913). The four placement slots (913) are all opened on the outer surface of the expansion tube (910). The air pump (912) is fixedly connected to the right side of the connecting plate two (99). The input ends of the air pump (912) and the solenoid valve are electrically connected to the output end of the controller (7).

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