Auxiliary device for artificial insemination of sheep

Abstract

This invention discloses an auxiliary device for artificial semen collection from sheep, including a base plate, a first pad and a second pad on the top of the base plate, a first positioning mechanism on the second pad that can clamp and restrain the sheep's forelegs, and a second positioning mechanism above the first pad that is driven by the first positioning mechanism to clamp and restrain the sheep's rump. This invention, through the pads and positioning mechanisms on the base plate, can assist in the artificial positioning and fixing of the forelimbs and buttocks of the estrus-induced ewe, so as to facilitate subsequent semen collection from the ram, making the process stable and efficient.

Description

Technical Field

[0001] This invention relates to an auxiliary device, and more particularly to an auxiliary device for artificial semen collection from sheep. Background Technology

[0002] Sheep farming plays a vital role in animal husbandry, and with the improvement of people's living standards, the demand for mutton products is constantly increasing. Improving sheep reproductive efficiency and strengthening the preservation of superior breeds are urgent issues that need to be addressed. Artificial insemination (AI) in sheep not only provides an effective method for improving sheep reproductive efficiency but also allows some superior breeds to continue to develop. With the continuous development of reproductive technology, sheep AI technology has evolved through a process of fresh semen collection and insemination → diluted semen insemination → frozen semen insemination → laparoscopic hysteroscopic insemination. Currently, in actual semen collection, farm workers need to temporarily restrain the sheep before collecting semen. Because rams are quite wild, the operation is very inconvenient, especially during dragging, where the sheep are difficult to cooperate with. Summary of the Invention

[0003] To address the technical problems mentioned in the background section, the present invention provides an auxiliary device for artificial semen collection from sheep.

[0004] The present invention is achieved by the following technical solution: an auxiliary device for artificial semen collection from sheep, including a base plate, the top of the base plate having a first pad and a second pad, the second pad being provided with a first positioning mechanism capable of clamping and restraining the front hooves of a sheep, the first pad being provided with a second positioning mechanism above the first pad, the second positioning mechanism being driven by the first positioning mechanism, and capable of clamping and restraining the hindquarters of a sheep.

[0005] As a further improvement to the above solution, a support column is fixed to the top of the base plate, and the bottom of the second pad is fixedly supported on the top of the support column.

[0006] As a further improvement to the above solution, the first positioning mechanism includes two sets of clamping rollers, a first actuation component, and a drive component. The two sets of clamping rollers are distributed opposite each other on the top of the second pad and correspond to the positions of the two front hooves of the sheep. Each set of clamping rollers has three rollers. The three rollers in the same set are evenly distributed in the same circumferential direction and form a first clamping space between them for clamping and fixing the front hooves of the sheep. The first actuation component and the drive component are both disposed on the base plate. The first actuation component is driven by the drive component and can drive the three rollers in each set to move radially synchronously and in the same direction.

[0007] As a further improvement to the above solution, the clamping roller has an arc surface adapted to the outer surface of the sheep's forehoof.

[0008] As a further improvement to the above solution, the first action component includes multiple limiting rods, each of which is coaxially fixed to the bottom of the corresponding clamping roller. The second pad has multiple first limiting grooves radially opened, corresponding to the corresponding clamping rollers, and each limiting rod is slidably inserted and locked in the first limiting groove.

[0009] Two discs are rotatably mounted on the top of the base plate, and the positions of the two discs correspond to the positions of the two sets of clamping rollers respectively. Three second limiting grooves are evenly opened on the circumferential direction of the discs, and each limiting rod can slide through and be locked in the corresponding second limiting groove.

[0010] As a further improvement to the above solution, the cross-section of the first limiting groove is waist-shaped, and the cross-section of the second limiting groove is an arc-shaped structure that bends towards the center of the disc.

[0011] As a further improvement to the above solution, a connecting rod is concentrically fixed at the bottom of the disc body, and the bottom of the connecting rod is rotatably mounted on the top of the base plate.

[0012] As a further improvement to the above solution, the drive assembly includes a worm gear rotatably inserted into the base plate, and the bottom of the connecting rod extends into the base plate and is fixed with a worm wheel that cooperates with the worm gear.

[0013] As a further improvement to the above solution, the second positioning mechanism includes a frame supported on the top of the base plate and a second actuation component. Two opposing clamping plates are suspended on the frame, and a second clamping space is formed between the two clamping plates to clamp and hold the sheep's buttocks.

[0014] The second actuation component is mounted on the frame and is driven by the rotation of the worm gear, which can drive the two clamping plates to move down synchronously and move closer to each other.

[0015] As a further improvement to the above solution, the second action component includes a cylinder inserted into the top of the frame, the top of the cylinder rotating synchronously with the worm gear, a screw threaded into the bottom of the cylinder, a third limiting groove fixed at the bottom of the screw, and a telescopic rod provided between the top of the third limiting groove and the frame.

[0016] Two opposing limiting blocks are slidably engaged in the third limiting groove. A lead screw is rotatably inserted into the third limiting groove. The threads at both ends of the lead screw turn in opposite directions. The two limiting blocks are threaded onto the two ends of the lead screw. The two clamping plates are respectively fixed to the bottom of the two limiting blocks.

[0017] One end of the lead screw extends through the outside of the third limiting groove and is fixed to a fifth reel. The fifth reel contains a first pull rope, and the free end of the first pull rope is bolted and fixed to the bottom wall of the top of the frame.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The auxiliary device for artificial semen collection of sheep of the present invention, through the pad and positioning mechanism set on the base plate, can help to position and fix the forelimbs and arms of the estrus-induced ewe, so as to carry out semen collection of rams in a stable and efficient manner.

[0020] 2. The auxiliary device for artificial semen collection of sheep of the present invention, through the first positioning mechanism and the second positioning mechanism, can simultaneously move the clamping plates downward and bring the clamping plates closer together while fixing the sheep's forelimb hooves, thereby simultaneously completing the clamping and restraint of the sheep's arm, which is convenient and efficient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 for Figure 1 A cross-sectional schematic diagram of the first positioning mechanism in the clamping state;

[0023] Figure 3 for Figure 2 A cross-sectional view of the first positioning mechanism in a non-clamping state;

[0024] Figure 4 for Figure 1 A top view of a portion of the second pad;

[0025] Figure 5 for Figure 1 A schematic diagram of the mid-section structure viewed from below;

[0026] Figure 6 for Figure 1 A schematic diagram of the second positioning mechanism in a non-positioning state, viewed from below.

[0027] Figure 7 for Figure 2 Enlarged structural diagram at point A in the middle.

[0028] Explanation of key symbols:

[0029] 1. Base plate; 2. First pad plate; 3. Support column; 4. Second pad plate; 5. Clamping roller; 6. First limiting groove; 7. Disc body; 8. Second limiting groove; 9. Connecting rod; 10. Limiting rod; 11. Pressure strip; 12. First thread pulley; 13. Roller; 14. Second thread pulley; 15. Third thread pulley; 16. Worm gear; 17. Worm wheel; 18. Frame body; 19. First guide wheel; 20. Second guide wheel; 21. Fourth thread pulley; 22. Cylinder body; 23. Screw; 24. Telescopic rod; 25. Third limiting groove; 26. Lead screw; 27. Limiting block; 28. Clamping plate; 29. ​​Fifth thread pulley. Detailed Implementation

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] Example 1

[0032] Please combine Figures 1 to 7 An auxiliary device for artificial semen collection from sheep includes a base plate 1. The top of the base plate 1 has a first pad 2 and a second pad 4. The thickness of the first pad 2 is greater than the thickness of the second pad 4, which allows the female sheep to be fixed in place and its buttocks to be raised in order to attract rams for semen collection.

[0033] The second pad 4 is provided with a first positioning mechanism that can clamp and restrain the front hooves of the sheep. The first pad 2 is provided with a second positioning mechanism. The second positioning mechanism is driven by the first positioning mechanism and can clamp and restrain the buttocks of the sheep.

[0034] In this embodiment, the forelimbs are clamped. The clamping strength of the first positioning mechanism on the sheep's forehooves can be determined according to the actual situation. When the sheep's hoof is below the rubber clamping roller 5, because the hoof is relatively large, it can be stuck below the clamping roller, and at this time, it does not need to be clamped too tightly. The clamping strength of the second positioning mechanism on the sheep's rump can be determined according to the actual situation.

[0035] A support column 3 is fixed to the top of the base plate 1, and the bottom of the second pad 4 is fixedly supported on the top of the support column 3 so that the second pad 4 and the base plate 1 form a whole, making the whole more stable.

[0036] The first positioning mechanism includes two sets of clamping rollers 5, a first actuating component, and a driving component. The clamping rollers 5 may be made of rubber material. The two sets of clamping rollers 5 are distributed opposite each other on the top of the second pad 4, and correspond to the positions of the two front hooves of the sheep, so that the sheep's front hooves can be inserted into each set of clamping rollers 5.

[0037] Each group of clamping rollers 5 consists of three rollers. The three rollers 5 in the same group are evenly distributed in the same circumferential direction and form a first clamping space between them for clamping and securing the sheep's front hooves. The first action component and the drive component are both set on the base plate 1. The first action component is driven by the drive component and can drive the three rollers 5 in each group to move radially synchronously and in the same direction so as to clamp or release the sheep's front hooves.

[0038] The clamping roller 5 has an arc surface that matches the outer surface of the sheep's forehoof, increasing the contact area with the surface of the sheep's forehoof, making the clamping more stable, and increasing the comfort of the sheep when clamping its forehoof.

[0039] The first actuating component includes multiple limiting rods 10, each limiting rod 10 being coaxially fixed to the bottom of the corresponding clamping roller 5 to drive the corresponding clamping roller 5 to move synchronously. The second pad 4 has multiple first limiting grooves 6 radially formed, corresponding to the corresponding clamping roller 5, and each limiting rod 10 is slidably inserted and locked in the first limiting groove 6.

[0040] Two discs 7 are rotatably mounted on the top of the base plate 1, and the positions of the two discs 7 correspond to the positions of the two sets of clamping rollers 5. Three second limiting grooves 8 are evenly opened on the circumferential direction of the discs 7, and each limiting rod 10 is slidably inserted and locked in the corresponding second limiting groove 8.

[0041] The first limiting groove 6 has a waist-shaped cross-section, and the second limiting groove 8 has an arc-shaped cross-section that bends towards the center of the disc 7.

[0042] A connecting rod 9 is concentrically fixed at the bottom of the disc body 7, and the bottom of the connecting rod 9 is rotatably mounted on the top of the base plate 1.

[0043] In this embodiment, by rotating the guide disc 7, the groove wall of the second limiting groove 8 can drive the limiting rod 10 to move within the first limiting groove 6, thereby causing the limiting rod 10 to drive the clamping rollers 5 to move closer or separate.

[0044] The drive assembly includes a worm gear 16 that is rotatably inserted into the base plate 1, and a connecting rod 9 whose bottom extends into the base plate 1 and is fixed with a worm wheel 17 that cooperates with the worm gear 16.

[0045] The second positioning mechanism includes a frame 18 supported on the top of the base plate 1 and a second actuation component. Two opposing clamping plates 28 are suspended on the frame 18, and a second clamping space is formed between the two clamping plates 28 to hold and restrain the sheep's buttocks, preventing the sheep from shaking violently.

[0046] The second actuation component is mounted on the frame 18 and is driven by the rotation of the worm gear 16, which enables the two clamping plates 28 to move down synchronously and move closer to each other.

[0047] The second actuating component includes a cylinder 22 inserted into the top of the frame 18. The top of the cylinder 22 rotates synchronously with the worm gear 16. In this embodiment, a third spool 15 is fixed to one end of the worm gear 16, and a second pull rope is wound around the third spool 15. A fourth spool 21 is sleeved and fixed on the outer side of the top of the cylinder 22. A first guide wheel 19 and a second guide wheel 20 are respectively installed on the side wall of the base plate 1 and the top corner of the frame 18. The free end of the second pull rope passes around the first guide wheel 19 and the second guide wheel 20 in sequence and is then wound around the fourth spool 21. Thus, the rotation of the worm gear 16 can drive the cylinder 22 to rotate synchronously through the third spool 15, the second pull rope, and the fourth spool 21.

[0048] A screw 23 is threaded into the bottom of the cylinder 22. A third limiting groove 25 is fixed at the bottom of the screw 23. A telescopic rod 24 is provided between the top of the third limiting groove 25 and the frame 18. The cylinder 22 can rotate so that it and the screw 23 can interact with each other through threads, and under the limiting action of the telescopic rod 24, the third limiting groove 25 can move in the vertical direction.

[0049] Two opposing limiting blocks 27 are slidably engaged in the third limiting groove 25. A lead screw 26 is rotatably inserted in the third limiting groove 25. The threads at both ends of the lead screw 26 are turned in opposite directions. The two limiting blocks 27 are threaded onto the two ends of the lead screw 26. Two clamping plates 28 are fixed to the bottom of the two limiting blocks 27 respectively.

[0050] The clamping surface of the clamping plate 28 has an arc surface that fits the sheep's buttocks, which makes the clamping more stable. At the same time, flexible protrusions are also provided on the clamping surface of the clamping plate 28 to improve the static friction of the clamping and further improve the stability.

[0051] One end of the lead screw 26 extends through to the outside of the third limiting groove 25 and is fixed to the fifth thread pulley 29. The fifth thread pulley 29 contains the first pull rope, and the free end of the first pull rope is bolted and fixed to the bottom wall of the top of the frame 18. The vertical movement of the third limiting groove 25 drives the fifth thread pulley 29 to perform the winding and unwinding operation, causing the lead screw 26 to rotate, thereby adjusting the clamping distance between the two clamping plates 28.

[0052] The working principle of this embodiment:

[0053] Before semen collection, the forelimbs of the estrus ewe are placed on two sets of clamping rollers 5, so that the hooves of the two limbs land on the top of the second pad 4 between each set of clamping rollers. By rotating the worm gear 16, not only can the clamping rollers 5 be moved closer to each other to clamp and restrain the forelimbs, but the two clamping plates 28 can also be moved down and closer to each other to clamp and restrain the ewes' buttocks, thereby fixing the estrus ewe. Then, after the ram is attracted, the opportunity is seized to collect semen from the ram through the artificial vagina.

[0054] Example 2

[0055] To further improve the positioning effect on the sheep's forehooves, this embodiment has a deflectable pressure strip 11 installed on the top of the clamping roller 5. The bottom of the pressure strip 11 is connected to the top of the clamping roller 5 via a coil spring. When the coil spring is in a non-deformed state, the vertical projection of the pressure strip 11 is located outside the first clamping space.

[0056] Inside the limiting rod 10, a roller 13 is installed that contacts the wall of the first limiting groove 6. A second threaded wheel 14 located inside the limiting rod 10 is coaxially fixed on the roller 13. A third pull rope is wound on the second threaded wheel 14. One end of the reel is fixed to the first threaded wheel 12.

[0057] The working principle of this embodiment:

[0058] Before semen collection, while the forelegs are clamped and restrained, the movement of the limiting rod 10 in the first limiting groove 6 will drive the roller 13 to rotate synchronously. This causes the roller 13 to drive the second thread spool 14, the third pull rope, the first thread spool 12, and the spool to rotate synchronously, causing the pressure strip 11 to deflect and clamp the outside of the sheep's forelimbs, thus improving the positioning effect of the sheep's forelegs.

[0059] In addition, multiple rubber strips are provided on the pressure strip 11 to increase the static friction between the pressure strip 11 and the surface of the forelimb, thereby further improving stability.

[0060] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. An auxiliary device for artificial insemination of a ram, characterized in that Includes a base plate, the top of which has a first pad and a second pad. The second pad is provided with a first positioning mechanism that can clamp and restrain the front hooves of a sheep. A second positioning mechanism is provided above the first pad. The second positioning mechanism is driven by the first positioning mechanism and can clamp and restrain the hindquarters of the sheep. The first positioning mechanism includes two sets of clamping rollers, a first actuation component, and a drive component. The two sets of clamping rollers are distributed opposite to each other on the top of the second pad and correspond to the positions of the two front hooves of the sheep. Each set of clamping rollers has three rollers. The three rollers in the same set are evenly distributed in the same circumferential direction and form a first clamping space between them for clamping and fixing the front hooves of the sheep. The first actuation component and the drive component are both disposed on the base plate. The first actuation component is driven by the drive component and can drive the three rollers in each set to move radially synchronously and in the same direction. The first actuation component includes multiple limiting rods, each of which is coaxially fixed to the bottom of the corresponding clamping roller. The second pad has multiple first limiting grooves radially formed, each corresponding to a clamping roller. Each limiting rod is slidably inserted and engaged in the first limiting groove. Two discs are rotatably mounted on the top of the base plate, and the positions of the two discs correspond to the positions of the two sets of clamping rollers respectively; three second limiting grooves are evenly opened on the circumferential direction of the discs, and each limiting rod can slide through and be locked in the corresponding second limiting groove; A connecting rod is concentrically fixed to the bottom of the disc body, and the bottom of the connecting rod is rotatably mounted to the top of the base plate. The drive assembly includes a worm gear rotatably inserted into the base plate, and the bottom of the connecting rod extends into the base plate and is fixed with a worm wheel that cooperates with the worm gear; The second positioning mechanism includes a frame supported on the top of the base plate and a second actuation component. Two opposing clamping plates are suspended on the frame, and a second clamping space is formed between the two clamping plates to clamp and hold the sheep's buttocks. The second actuation component is mounted on the frame and is driven by the rotation of the worm gear, which can drive the two clamping plates to move down synchronously and move closer to each other. The second actuating component includes a cylinder inserted into the top of the frame, the top of the cylinder rotating synchronously with the worm gear, a screw threaded into the bottom of the cylinder, a third limiting groove fixed at the bottom of the screw, and a telescopic rod provided between the top of the third limiting groove and the frame. Two opposing limiting blocks are slidably engaged in the third limiting groove. A lead screw is rotatably inserted into the third limiting groove. The threads at both ends of the lead screw turn in opposite directions. The two limiting blocks are threaded onto the two ends of the lead screw. The two clamping plates are respectively fixed to the bottom of the two limiting blocks. One end of the lead screw extends through the outside of the third limiting groove and is fixed to a fifth reel. The fifth reel contains a first pull rope, and the free end of the first pull rope is bolted and fixed to the bottom wall of the top of the frame.

2. The apparatus according to claim 1, wherein A support column is fixed to the top of the base plate, and the bottom of the second pad is fixedly supported on the top of the support column.

3. The auxiliary device for artificial semen collection from sheep as described in claim 1, characterized in that, The clamping roller has an arc surface that is adapted to the outer surface of the sheep's forehoof.

4. The auxiliary device for artificial semen collection from sheep as described in claim 3, characterized in that, The first limiting groove has a waist-shaped cross-section, and the second limiting groove has an arc-shaped cross-section that curves towards the center of the disc.

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