Animal semen freezing equipment

Abstract

The invention relates to the technical field of semen freezing, in particular to animal semen freezing equipment which comprises a cambered surface supporting mounting frame, an annular loading mounting cylinder and a liquid nitrogen storage tank and further comprises a movable buffering loading mechanism, an animal semen combined loading freezing mechanism and a passive temperature control mechanism. The movable buffer loading mechanism comprises movable mounting plates which are symmetrically arranged at the bottom of the cambered surface supporting mounting frame; the device can be stably moved to an animal semen collection area, so that the semen collection space distance is reduced, the damage of ice crystal oscillation to sperms in the transportation process is avoided, and the device can be used for freezing multiple groups of animal semen in batches; the heat exchange area of the animal semen can be increased through the conical surface structure, the freezing speed is remarkably increased, and the freezing quality of the animal semen is further improved; the animal semen cryopreservation device can automatically freeze and preserve animal semen at low temperature, greatly reduces the internal temperature in the early freezing stage, and is high in liquid nitrogen diffusion speed, low in nitrogen consumption, simple to operate, low in maintenance cost and suitable for large-scale popularization and application.

Description

Technical Field

[0001] The invention relates to the technical field of semen freezing, in particular to an animal semen freezing device. Background Art

[0002] Cryopreservation of animal semen can store the semen of excellent breeding animals for a long time without being restricted by time and region, thus achieving cross-regional transmission of genes. Some animals have obvious seasonal breeding characteristics, and it is difficult to obtain fresh semen in the non-breeding season. Cryopreservation of semen technology can collect and preserve semen in the peak breeding season and use it in the off-season or during peak demand periods, ensuring sufficient semen supply throughout the year, so that animal husbandry production is not restricted by seasons, maintaining a stable production rhythm, and meeting the market's continuous demand for livestock products. For rare and endangered animals, cryopreservation of semen is an important means of preserving their genetic diversity. When natural reproduction faces difficulties or the population is small, frozen semen can provide a genetic material basis for future breeding plans, prevent the loss of genetic genes due to breeding problems, and increase the chance of species continuation. Cryopreservation of animal semen provides a stable source of samples for reproductive biology research. Researchers can use frozen semen to conduct in-depth research on the physiological characteristics of sperm, the mechanism of freezing damage, the role of cryoprotectants, etc., which will help reveal the mysteries of the reproductive process and provide a theoretical basis for improving animal reproduction efficiency and solving reproductive-related problems.

[0003] Although current animal semen freezing equipment is capable of freezing animal semen, it often cannot reach deep into the semen collection site, resulting in a large spatial distance from animal semen collection to freezing, a long time consumption, and the quality and hygiene of animal semen are easily affected; current animal semen freezing equipment often uses cylindrical containers for storage, and during the freezing process, the heat exchange area is single, and it cannot quickly pass through the ice crystal formation stage, and it is also unable to limit the length of ice crystals, resulting in the quality of animal semen being affected; most current animal semen freezing equipment lacks a temperature control system, resulting in great difficulty in maintaining the frozen state. Although some animal semen freezing equipment has integrated a temperature control system, it increases the cost and maintenance cost of the electronic equipment, and the failure rate of electronic components in low-temperature environments is generally high, making it even less capable of performing mobile animal semen freezing operations.

[0004] The present invention aims to solve the technical problems existing in the prior art, and for this purpose, provides an animal semen freezing device. Summary of the invention

[0005] The object of the present invention is to provide an animal semen freezing device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: An animal semen freezing device comprises a curved surface support mounting frame, an annular loading mounting cylinder, a liquid nitrogen storage tank, a mobile buffer loading mechanism, an animal semen combined loading and freezing mechanism, and a passive temperature control mechanism.

[0007] As a further solution of the present invention: a mobile buffer loading mechanism is arranged on an arc surface support mounting frame, and the mobile buffer loading mechanism includes a mobile mounting plate symmetrically arranged at the bottom of the arc surface support mounting frame, one side of the mobile mounting plate is connected to the arc surface support mounting frame, and the other side of the mobile mounting plate is symmetrically arranged with a steering wheel frame, the steering wheel frame is rotatably provided with a rotating wheel, and one side of the steering wheel frame is rotatably provided with a spiral locking column.

[0008] As a further solution of the present invention: a support mounting ring is arranged on the outer side of the cylinder wall of the annular loading mounting cylinder, and an annular support sleeve is arranged in cooperation with the support mounting ring gap cover, and the annular support sleeve rotates in cooperation with the support mounting ring; an arcuate elastic support frame is arranged on the top of the arcuate support mounting frame, and fixed mounting frames are arranged at both ends of the arcuate elastic support frame; a limited support bearing sleeve is arranged on the upper end of the fixed mounting frame, and a limited support rotating shaft is arranged in cooperation with the limited support bearing sleeve on the outer side of the annular support sleeve.

[0009] As a further solution of the present invention: a plurality of connecting mounting frames are arranged at equal angles on the outside of the liquid nitrogen storage tank, the outer ends of the connecting mounting frames are connected to the annular loading mounting cylinder, an extended mounting column is arranged at the bottom of the liquid nitrogen storage tank, and a counterweight block is threadedly connected to the end of the extended mounting column; a plurality of magnetic blocks are arranged at equal angles at the connection between the arc surface support mounting frame and the arc surface elastic support frame in conjunction with the extended mounting column, and the counterweight block is magnetically matched with the magnetic block.

[0010] As a further solution of the present invention: an animal semen combined loading and freezing mechanism is arranged in an annular loading and mounting cylinder, and the animal semen combined loading and freezing mechanism includes an annular loading and freezing cylinder arranged inside the annular loading and mounting cylinder, the top of the annular loading and freezing cylinder is connected to the top of the annular loading and mounting cylinder, and a plurality of loading and mounting holes are arranged at equal angles at the connection between the top of the annular loading and freezing cylinder and the top of the annular loading and mounting cylinder, the inner wall of the loading and mounting hole is provided with an internal mounting thread, and an independent animal semen loading module is arranged in conjunction with the loading and mounting hole; a vacuum interlayer is arranged inside the cylinder wall of the annular loading and mounting cylinder, and the space between the outer wall of the annular loading and freezing cylinder and the inner wall of the annular loading and mounting cylinder is a buffer freezing zone.

[0011] As a further solution of the present invention: the animal semen independent loading module includes a combined mounting disk, a vacuum chamber is arranged inside the combined mounting disk, a threaded mounting column is arranged on one side of the combined mounting disk, and the loading mounting hole and the mounting internal thread on the inner wall are threadedly mounted in cooperation with the threaded mounting column.

[0012] As a further solution of the present invention: an annular sealing cover is provided on the upper cover of the annular loading and mounting cylinder, two groups of rotating slide rails are concentrically arranged on the annular loading and mounting cylinder opposite to the annular sealing cover, the annular sealing cover is rotatably connected to the annular loading and mounting cylinder through the two groups of rotating slide rails, and the loading and mounting holes arranged at equal angles are located between the two groups of rotating slide rails; a plurality of operating ports are arranged at equal intervals on the annular sealing cover, and a rotating cover plate is rotatably arranged to cooperate with the operating ports, a switch is cooperated between the rotating cover plate and the annular loading and mounting cylinder, and an opening and closing handle is arranged on the rotating cover plate.

[0013] As a further solution of the present invention: an operating handle is arranged on the other side of the combined mounting plate, and a rubber sleeve is wrapped around the middle of the operating handle.

[0014] As a further solution of the present invention: a positioning mounting column is arranged at the middle position of one end of the threaded mounting column away from the combined mounting disk, and a sampler is arranged in conjunction with the positioning mounting column, and the sampler comprises a fixed sleeve which is sleeved in conjunction with the positioning mounting column, and a conical loading cylinder is arranged at one end of the fixed sleeve, and a conical inner recess is arranged at the bottom of the conical loading cylinder; an installation limit ring is arranged outwardly at the other end of the fixed sleeve, and an installation sleeve is arranged on the outside of the positioning mounting column in conjunction with the installation limit ring, one end of the installation sleeve is connected to the threaded mounting column, and a deformation locking limit ring is arranged inwardly at the other end of the installation sleeve in conjunction with the installation limit ring; a plurality of friction rubber rings are arranged at equal intervals on the outside of the positioning mounting column, and the friction rubber rings are in contact with the inner wall of the fixed sleeve.

[0015] As a further solution of the present invention: a passive temperature control mechanism, the passive temperature control mechanism includes a plurality of double-layer flow guide tubes arranged at equal angles at the bottom of the liquid nitrogen storage tank, a vacuum layer is arranged inside the wall of the double-layer flow guide tube and the wall of the liquid nitrogen storage tank, one end of the double-layer flow guide tube is connected to the interior of the liquid nitrogen storage tank, and the other end of the double-layer flow guide tube passes through the wall of the annular loading installation cylinder, the buffer freezing zone and the annular loading freezing cylinder.

[0016] As a further solution of the present invention: the double-layer flow guide tubes in the buffer freezing zone are all arranged in series with expanded flow guide tubes, and the double-layer flow guide tubes in the buffer freezing zone are symmetrically arranged in series with the expanded flow guide tubes, and two groups of temperature-sensitive relaxation parts are arranged in series, and the temperature-sensitive relaxation parts include a plurality of temperature-sensitive deformation plates arranged at equal angles, and the temperature-sensitive deformation plates are connected in series into a cylindrical structure, and the two ends of the temperature-sensitive deformation plates of the cylindrical structure are respectively connected to the double-layer flow guide tubes at the two ends.

[0017] As a further solution of the present invention: a sealing installation cover is arranged opposite to the upper end of the liquid nitrogen storage tank, a positioning fluid replenishment cylinder is arranged on the liquid nitrogen storage tank opposite to the sealing installation cover, the sealing installation cover is provided with an annular positioning groove in cooperation with the positioning fluid replenishment cylinder, a magnetic suction cup is embedded in the upper end of the liquid nitrogen storage tank outside the positioning fluid replenishment cylinder, and the magnetic suction cup is magnetically matched with the sealing installation cover; a sealing rubber cylinder is arranged on the magnetic suction cup, and an annular sealing sleeve is arranged on one side of the sealing installation cover in cooperation with the sealing rubber cylinder.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The conical structure can increase the heat exchange area of ​​animal semen, significantly increase the freezing speed, and further improve the quality of animal semen freezing; It can automatically freeze and cryopreserve animal semen, greatly reduce the internal temperature at the initial stage of freezing, has a fast liquid nitrogen diffusion rate, and consumes less nitrogen. It is easy to operate and has low maintenance costs, making it suitable for large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of an animal semen freezing device from an oblique top view.

[0020] Figure 2 It is a stereoscopic schematic diagram of an animal semen freezing device viewed from an oblique upward angle.

[0021] Figure 3 for Figure 2 Enlarged schematic diagram of point a in the middle.

[0022] Figure 4 A three-dimensional schematic diagram of an animal semen freezing device with the annular sealing cover removed.

[0023] Figure 5 The present invention is a partial cross-sectional schematic diagram of an annular loading and mounting cylinder in an animal semen freezing device.

[0024] Figure 6 for Figure 5 Enlarged schematic diagram of point b in the middle.

[0025] Figure 7 for Figure 4 Schematic diagram of the perspective view with the annular loading mounting barrel removed.

[0026] Figure 8 for Figure 7 Enlarged schematic diagram of point c in the middle.

[0027] Fig. 9 It is a three-dimensional schematic diagram of an independent animal semen loading module in an animal semen freezing device.

[0028] Fig.10The present invention is a partial cross-sectional schematic diagram of an independent animal semen loading module in an animal semen freezing device.

[0029] Fig.11 for Fig.10 Enlarged schematic diagram at point d in the middle.

[0030] Fig.12 It is a three-dimensional schematic diagram of the expansion guide tube in an animal semen freezing device.

[0031] Fig.13 The present invention is a partial cross-sectional schematic diagram of an enlarged guide tube in an animal semen freezing device.

[0032] 1-mobile mounting plate, 2-rotating wheel, 3-steering wheel frame, 4-magnetic suction cup, 5-arc elastic support frame, 6-fixed mounting frame, 7-arc support mounting frame, 8-magnetic suction block, 9-annular loading mounting cylinder, 10-annular support sleeve, 11-rotating cover plate, 12-operating port, 13-opening and closing handle, 14-liquid nitrogen storage tank, 15-sealed mounting cover, 16-connecting mounting frame, 17-annular sealing cover, 18-limited support bearing sleeve, 19-counterweight, 20-double-layer guide pipe, 21-rotating slide rail, 22-combined mounting plate, 23-rubber sleeve, 24-limited support shaft, 25-loading mounting hole, 26-spiral locking column, 2 7-installation internal thread, 28-sampler, 29-buffer freezing zone, 30-expanded guide tube, 31-annular loading freezing tube, 32-support mounting ring, 33-extended mounting column, 34-positioning liquid replenishment tube, 35-annular positioning groove, 36-annular sealing sleeve, 37-sealing rubber tube, 38-threaded mounting column, 39-installation sleeve, 40-fixed sleeve, 41-conical loading tube, 42-vacuum chamber, 43-positioning mounting column, 44-deformation locking limit ring, 45-friction rubber ring, 46-installation limit ring, 47-temperature sensing relaxation part, 48-temperature sensing deformation piece, 49-switch, 50-operating handle, 51-conical concave part. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0035] For example, see Figure 1 to Figure 7 In an embodiment of the present invention, an animal semen freezing device includes a curved support mounting frame 7, an annular loading mounting cylinder 9, a liquid nitrogen storage tank 14, and also includes: a mobile buffer loading mechanism, an animal semen combined loading and freezing mechanism, and a passive temperature control mechanism.

[0036] A mobile buffer loading mechanism is arranged on the cambered surface support mounting frame 7, and the mobile buffer loading mechanism includes a mobile mounting plate 1 symmetrically arranged at the bottom of the cambered surface support mounting frame 7, one side of the mobile mounting plate 1 is connected to the cambered surface support mounting frame 7, and the other side of the mobile mounting plate 1 is symmetrically arranged with a steering wheel frame 3, a rotating wheel 2 is rotatably arranged on the steering wheel frame 3, and a spiral locking column 26 is rotatably arranged on one side of the steering wheel frame 3; A support mounting ring 32 is arranged on the outer side of the cylinder wall of the annular loading mounting cylinder 9, and an annular support sleeve 10 is arranged in cooperation with the gap cover of the support mounting ring 32, and the annular support sleeve 10 rotates in cooperation with the support mounting ring 32; an arc surface elastic support frame 5 is arranged on the top of the arc surface support mounting frame 7, and fixed mounting frames 6 are arranged at both ends of the arc surface elastic support frame 5; a limited support bearing sleeve 18 is arranged on the upper end of the fixed mounting frame 6, and a limited support shaft 24 is arranged on the outer side of the annular support sleeve 10 in cooperation with the limited support bearing sleeve 18; a plurality of connecting mounting frames 16 are arranged at equal angles on the outer side of the liquid nitrogen storage tank 14, and the outer ends of the connecting mounting frames 16 are connected to the annular loading mounting cylinder 9, and an extended mounting column 33 is arranged at the bottom of the liquid nitrogen storage tank 14, and a counterweight block 19 is threadedly connected to the end of the extended mounting column 33; The connection between the arc surface support mounting frame 7 and the arc surface elastic support frame 5 is matched with the extended mounting column 33 and provided with a plurality of magnetic blocks 8 at equal angles, and the counterweight block 19 is magnetically matched with the magnetic blocks 8; The steering wheel frame 3 and the rotating wheel 2 cooperate to realize the steering movement of the mobile mounting plate 1, so as to realize the rapid movement of the animal semen freezing equipment to the animal semen collection area, shorten the spatial distance from animal semen collection to animal semen freezing, and avoid the damage of ice crystal vibration generated during transportation to sperm; it is convenient to realize batch semen collection, and the quality and efficiency of animal semen collection are guaranteed to the greatest extent; When the animal semen freezing equipment moves, the bumps caused by the movement are offset by elastic support through the deformation of the arc-shaped elastic support frame 5; the steering deflection caused by the movement is realized by the limited rotation of the limit support bearing sleeve 18 and the limit support shaft 24 to realize the swing of the annular loading and mounting tube 9. At the same time, the magnetic block 8 will limit the swing amplitude of the counterweight block 19 along with the liquid nitrogen storage tank 14 and the annular loading and mounting tube 9 through magnetic force, which on the one hand weakens the amplitude of the deflection, and on the other hand, under the rotation of the support mounting ring 32 and the annular support sleeve 10, a part of the kinetic energy of the steering deflection is consumed, further weakening the amplitude of the steering deflection, so that the annular loading and mounting tube 9 loaded with animal semen can always be kept in a lower dynamic range, thereby ensuring the stability of the animal semen freezing equipment and the animal semen inside it, and providing sufficient guarantee for the high-quality freezing of animal semen.

[0037] Example 2, based on Example 1, please refer to Figure 1 to Figure 6 In the embodiment of the present invention, the animal semen combined loading and freezing mechanism is arranged in the annular loading installation cylinder 9, and the animal semen combined loading and freezing mechanism includes an annular loading freezing cylinder 31 arranged inside the annular loading installation cylinder 9, the top of the annular loading freezing cylinder 31 is connected to the top of the annular loading installation cylinder 9, and a plurality of loading installation holes 25 are arranged at equal angles at the connection between the top of the annular loading freezing cylinder 31 and the top of the annular loading installation cylinder 9, and the inner wall of the loading installation hole 25 is provided with an installation internal thread 27, and the loading installation hole 25 is matched with an animal semen independent loading module; a vacuum interlayer is arranged in the cylinder wall of the annular loading installation cylinder 9, and the space between the outer wall of the annular loading freezing cylinder 31 and the inner wall of the annular loading installation cylinder 9 is a buffer freezing area 29; An annular sealing cover 17 is provided above the annular loading installation cylinder 9. Two sets of rotating slide rails 21 are concentrically provided on the annular loading installation cylinder 9 directly opposite to the annular sealing cover 17. The annular sealing cover 17 is rotatably connected to the annular loading installation cylinder 9 through the two sets of rotating slide rails 21. The loading installation holes 25 arranged at equal angles are located between the two sets of rotating slide rails 21. A plurality of operating ports 12 are arranged at equal intervals on the annular sealing cover 17. A rotating cover plate 11 is rotatably provided to cooperate with the operating ports 12. A switch 49 is provided between the rotating cover plate 11 and the annular loading installation cylinder 9. An opening and closing handle 13 is provided on the rotating cover plate 11. Load the animal semen into the independent animal semen loading module, rotate the annular sealing cover 17, so that the annular sealing cover 17 cooperates with the two sets of rotating slide rails 21 to rotate on the annular loading installation cylinder 9, turn on the switch 49 and rotate the rotating cover 11 through the opening and closing handle 13 to open the operating port 12, until it is rotated to a single operating port 12 and observe that the operating port 12 is facing the loading installation hole 25. At this time, the operating ports 12 on the annular sealing cover 17 are all facing the loading installation hole 25. At this time, the loading operation of a single group of independent animal semen loading modules can be carried out, and the loading operation of multiple groups of independent animal semen loading modules can also be carried out. After the loading is completed, it only needs to be rotated a certain angle to repeat the above loading operation, and the loading operation of the next batch of independent animal semen loading modules can be carried out, which significantly improves the freezing quantity and timeliness of animal semen, and is suitable for batch operations at the animal semen collection site.

[0038] When the animal semen independent loading module is loaded, it is in the annular loading freezing cylinder 31. Through the interval of the buffer freezing area 29 and the vacuum interlayer set in the wall of the annular loading installation cylinder 9, both the freezing efficiency and the insulation effect are improved.

[0039] Example 3, based on Example 1, please refer to Figures 9 to 11 In the embodiment of the present invention, the animal semen independent loading module includes a combined mounting plate 22, a vacuum chamber 42 is provided inside the combined mounting plate 22, a threaded mounting column 38 is provided on one side of the combined mounting plate 22, and the loading mounting hole 25 and the mounting internal thread 27 on the inner wall thereof are threadedly matched with the threaded mounting column 38 for installation; an operating handle 50 is provided on the other side of the combined mounting plate 22, and a rubber sleeve 23 is provided in the middle of the operating handle 50; A positioning mounting column 43 is provided at the middle position of one end of the threaded mounting column 38 away from the combined mounting plate 22, and a sampler 28 is provided in cooperation with the positioning mounting column 43. The sampler 28 includes a fixed sleeve 40 which is sleeved in cooperation with the positioning mounting column 43, and a conical loading cylinder 41 is provided at one end of the fixed sleeve 40, and a conical inner concave portion 51 is provided inwardly at the bottom of the conical loading cylinder 41; The other end of the fixed sleeve 40 is outwardly provided with an installation limit ring 46, and the outside of the positioning installation column 43 is provided with an installation sleeve 39 to cooperate with the installation limit ring 46. One end of the installation sleeve 39 is connected to the threaded installation column 38, and the other end of the installation sleeve 39 is inwardly provided with a deformation locking limit ring 44 to cooperate with the installation limit ring 46; a plurality of friction rubber rings 45 are equidistantly provided on the outside of the positioning installation column 43, and the friction rubber ring 45 contacts the inner wall of the fixed sleeve 40.

[0040] First, the obtained animal semen is introduced into the fixed sleeve 40, and flows into the conical loading cylinder 41 through the fixed sleeve 40, and then the sampler 28 loaded with a certain amount of animal semen is inserted into the positioning installation column 43. At this time, the friction rubber ring 45 on the positioning installation column 43 rubs against the inner wall of the fixed sleeve 40 until the fixed sleeve 40 is inserted into the installation sleeve 39, and then the hand is released. At this time, under the action of gravity, the sampler 28 will move downward, but slowly move downward under the friction between the friction rubber ring 45 and the fixed sleeve 40 until the outward-turned installation limit ring 46 on the fixed sleeve 40 and the inward-turned deformation locking limit ring 44 on the installation sleeve 39 contact and generate a limit lock, which means that the sampler 28 is successfully installed, and the efficient and safe installation of the sampler 28 is achieved; Then, the combined mounting plate 22 and the sampler 28 mounted thereon are inserted into the loading mounting hole 25 by operating the handle 50, and then the independent loading module for animal semen is quickly mounted under the threaded cooperation of the mounting internal thread 27 and the threaded mounting column 38, and there is a gap between the threaded cooperation of the mounting internal thread 27 and the threaded mounting column 38; The conical concave portion 51 which is recessed inward at the bottom of the conical loading tube 41 can significantly increase the freezing area of ​​animal semen, thereby improving the heat release efficiency and significantly reducing the freezing time, allowing the animal semen to pass through the ice crystal condensation stage more quickly. Combined with quick installation, the animal semen collection to freezing cycle is greatly shortened, reducing the generation of ice crystals, thereby preserving more complete sperm and improving the quality of animal sperm.

[0041] Example 4, based on Example 1, please refer to Figures 5 to 8 , Fig.12 , Fig.13 In the embodiment of the present invention, the passive temperature control mechanism includes a plurality of double-layer guide tubes 20 arranged at equal angles at the bottom of the liquid nitrogen storage tank 14, a vacuum layer is arranged in the wall of the double-layer guide tube 20 and the wall of the liquid nitrogen storage tank 14, one end of the double-layer guide tube 20 is connected to the inside of the liquid nitrogen storage tank 14, and the other end of the double-layer guide tube 20 passes through the wall of the annular loading installation cylinder 9, the buffer freezing area 29 and the annular loading freezing cylinder 31. The double-layer flow guide tubes 20 in the buffer freezing zone 29 are all connected in series with an enlarged flow guide tube 30. The double-layer flow guide tubes 20 in the buffer freezing zone 29 are symmetrically connected in series with the enlarged flow guide tube 30 to form two groups of temperature-sensitive expansion parts 47. The temperature-sensitive expansion parts 47 include a plurality of temperature-sensitive deformation sheets 48 arranged at equal angles. The temperature-sensitive deformation sheets 48 are connected in series to form a cylindrical structure. The two ends of the temperature-sensitive deformation sheets 48 of the cylindrical structure are respectively connected to the double-layer flow guide tubes 20 at the two ends. A sealing installation cover 15 is arranged opposite to the upper end of the liquid nitrogen storage tank 14, a positioning fluid replenishing cylinder 34 is arranged on the liquid nitrogen storage tank 14 opposite to the sealing installation cover 15, the sealing installation cover 15 is provided with an annular positioning groove 35 for cooperating with the positioning fluid replenishing cylinder 34, a magnetic suction cup 4 is embedded in the upper end of the liquid nitrogen storage tank 14 outside the positioning fluid replenishing cylinder 34, the magnetic suction cup 4 is magnetically matched with the sealing installation cover 15; a sealing rubber cylinder 37 is arranged on the magnetic suction cup 4, and an annular sealing sleeve 36 is arranged on one side of the sealing installation cover 15 for cooperating with the sealing rubber cylinder 37.

[0042] Liquid nitrogen is poured into the liquid nitrogen storage tank 14 through the positioning liquid replenishing cylinder 34, and then the sealing installation cover 15 is accurately covered with the cooperation of the positioning liquid replenishing cylinder 34 and the annular positioning groove 35. At this time, the magnetic suction cup 4 and the sealing installation cover 15 attract each other, and the sealing rubber cylinder 37 is still elastic, so that the sealing rubber cylinder 37 and the annular sealing sleeve 36 are squeezed and sealed. After a period of time, the heat transfer makes the sealing rubber cylinder 37 harden, and the sealing effect is better; The liquid nitrogen storage tank 14 is connected with the double-layer guide pipe 20 and the annular loading freezing cylinder 31. The liquid nitrogen in the liquid nitrogen storage tank 14 flows along the inner wall of the double-layer guide pipe 20 into the annular loading freezing cylinder 31 to rapidly freeze the animal semen independent loading module in the annular loading freezing cylinder 31. Specifically, the liquid nitrogen is guided by the double-layer guide tube 20 and flows through the buffer freezing zone 29. At this time, it passes through the temperature-sensitive expansion portion 47 on one side of the expansion guide tube 30. The temperature-sensitive deformation sheet 48 on the temperature-sensitive expansion portion 47 is slowly tightened as the temperature decreases. The temperature-sensitive deformation sheet 48 is made of nickel metal or high-entropy alloy, which causes the flow rate of the liquid nitrogen passing through the temperature-sensitive expansion portion 47 to decrease. The liquid nitrogen that has entered the expansion guide tube 30 changes its state due to the increase in space and temperature difference, and its volume increases instantly. The liquid nitrogen, nitrogen gas and the original gas in the expansion guide tube 30 with increased volume flow into the double-layer guide tube 20 on the other side of the expansion guide tube 30 at a high speed. The temperature-sensitive expansion part 47 on the side double-layer flow guide tube 20 is also slowly tightened, causing the flow rate of the liquid nitrogen, nitrogen and the original gas in the expanded flow guide tube 30 passing through the temperature-sensitive expansion part 47 to further increase. Finally, the liquid nitrogen, nitrogen and the original gas in the expanded flow guide tube 30 enter the annular loading freezing cylinder 31 at a high speed, and quickly fill the entire annular loading freezing cylinder 31, so as to achieve high-speed and uniform freezing of the independent loading module of animal semen. Since the volume of the expanded flow guide tube 30 is limited and no excessive liquid is generated when the liquid nitrogen is just introduced to cause damage, multiple groups of expanded flow guide tubes 30 can significantly improve the cooling efficiency and uniformity of the annular loading freezing cylinder 31. As the temperature further decreases, the animal semen inside the sampler 28 on the animal semen independent loading module is quickly frozen, and the buffer freezing zone 29 is also at a relatively low temperature during the heat exchange with the expansion guide tube 30. The cooling speed in the annular loading freezing tube 31 can be further improved through the tube wall of the annular loading freezing tube 31. At this time, the temperature difference between the buffer freezing zone 29 and the double-layer guide tube 20 is small, and the temperature-sensing relaxation part 47 is in a contracted state. When the temperature in the buffer freezing zone 29 rises, the contracted state of the temperature-sensing relaxation part 47 will be less adaptable, and the amount of liquid nitrogen diverted will increase until the temperature in the annular loading freezing tube 31 and the buffer freezing zone 29 drops again to the temperature range for freezing and storage of animal semen, which is in a dynamically adjusted range. It is only necessary to regularly inject liquid nitrogen into the liquid nitrogen storage tank 14 to maintain the temperature for freezing and storage of animal semen, which can greatly reduce the internal temperature in the initial stage of freezing. The liquid nitrogen diffuses quickly, consumes less nitrogen, is easy to operate, and has low maintenance costs, and is suitable for large-scale promotion and use. A vacuum layer is provided inside the wall of the double-layer flow guide tube 20 and the wall of the liquid nitrogen storage tank 14, which cooperates with the vacuum interlayer provided inside the wall of the annular loading and mounting tube 9 to significantly reduce the consumption of liquid nitrogen and improve the freezing efficiency and quality of animal semen.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An animal semen freezing device, comprising a curved support mounting frame, an annular loading mounting cylinder, and a liquid nitrogen storage tank, characterized in that: Also includes: A mobile buffer loading mechanism is arranged on a curved surface support mounting frame, wherein the mobile buffer loading mechanism comprises a mobile mounting plate symmetrically arranged at the bottom of the curved surface support mounting frame, a support mounting ring is arranged on the outer side of the cylinder wall of the annular loading mounting cylinder, an annular support sleeve is arranged to cooperate with the support mounting ring gap cover, the annular support sleeve rotates in cooperation with the support mounting ring, and a curved elastic support frame is arranged on the top of the curved surface support mounting frame; A plurality of connecting mounting frames are arranged at equal angles on the outside of the liquid nitrogen storage tank, and the outer ends of the connecting mounting frames are connected to the annular loading mounting cylinder. An extended mounting column is arranged at the bottom of the liquid nitrogen storage tank, and a counterweight block is threadedly connected to the end of the extended mounting column. The animal semen combined loading and freezing mechanism is arranged in an annular loading installation cylinder, and the animal semen combined loading and freezing mechanism includes an annular loading and freezing cylinder arranged inside the annular loading and freezing cylinder, the top of the annular loading and freezing cylinder is connected to the top of the annular loading and freezing cylinder, and a plurality of loading and mounting holes are arranged at equal angles at the connection between the top of the annular loading and freezing cylinder and the top of the annular loading and mounting cylinder, the inner wall of the loading and mounting hole is provided with an installation internal thread, and the loading and mounting holes are matched with animal semen independent loading modules, the cylinder wall of the annular loading and mounting cylinder is provided with a vacuum interlayer, and the space between the outer wall of the annular loading and freezing cylinder and the inner wall of the annular loading and mounting cylinder is a buffer freezing zone; The animal semen independent loading module comprises a combined mounting plate, a vacuum chamber is arranged inside the combined mounting plate, a threaded mounting column is arranged on one side of the combined mounting plate, and the loading mounting hole and the mounting internal thread on the inner wall thereof are threadedly matched with the threaded mounting column for mounting; A positioning mounting column is arranged at the middle position of one end of the threaded mounting column away from the combined mounting plate, and a sampler is arranged in cooperation with the positioning mounting column. The sampler comprises a fixed sleeve which is sleeved in cooperation with the positioning mounting column, and a conical loading cylinder is arranged at one end of the fixed sleeve, and a conical inner concave portion is arranged inwardly at the bottom of the conical loading cylinder; The other end of the fixing sleeve is turned outwardly to be provided with an installation limit ring, the outside of the positioning installation column is provided with an installation sleeve in cooperation with the installation limit ring, one end of the installation sleeve is connected to the threaded installation column, and the other end of the installation sleeve is turned inwardly to be provided with a deformation locking limit ring in cooperation with the installation limit ring; Passive temperature control mechanism, the passive temperature control mechanism includes a plurality of double-layer guide tubes arranged at equal angles at the bottom of the liquid nitrogen storage tank, a vacuum layer is arranged in the wall of the double-layer guide tube and the wall of the liquid nitrogen storage tank, one end of the double-layer guide tube is connected with the inside of the liquid nitrogen storage tank, and the other end of the double-layer guide tube passes through the wall of the annular loading installation cylinder, the buffer freezing zone and the annular loading freezing cylinder; The double-layer flow guide pipes in the buffer freezing zone are all connected in series with an enlarged flow guide tube, and the double-layer flow guide pipes in the buffer freezing zone are symmetrically connected in series with the enlarged flow guide tubes to form two groups of temperature-sensitive expansion parts, and the temperature-sensitive expansion parts include a plurality of temperature-sensitive deformation sheets arranged at equal angles, and the temperature-sensitive deformation sheets are connected in series to form a cylindrical structure, and the two ends of the temperature-sensitive deformation sheets of the cylindrical structure are respectively connected to the double-layer flow guide pipes at the two ends; A sealing installation cover is arranged opposite to the upper end of the liquid nitrogen storage tank.

2. The animal semen freezing device according to claim 1, characterized in that: One side of the movable mounting plate is connected to the arc surface support mounting frame, and the other side of the movable mounting plate is symmetrically provided with a steering wheel frame, on which a rotating wheel is rotatably provided, and one side of the steering wheel frame is rotatably provided with a spiral locking column.

3. The animal semen freezing device according to claim 2, characterized in that: Both ends of the arc surface elastic support frame are provided with fixed mounting frames, and the upper ends of the fixed mounting frames are provided with limited support bearing sleeves. The outer side of the annular support sleeve is matched with the limited support bearing sleeve to provide a limited support shaft.

4. The animal semen freezing device according to claim 3, characterized in that: A plurality of magnetic blocks are arranged at equal angles at the connection between the arc surface support mounting frame and the arc surface elastic support frame in coordination with the extended mounting column, and the counterweight block is magnetically matched with the magnetic block.

5. The animal semen freezing device according to claim 1, characterized in that: An annular sealing cover is provided above the annular loading and mounting cylinder, and two sets of rotating slide rails are concentrically arranged on the annular loading and mounting cylinder opposite to the annular sealing cover. The annular sealing cover is rotatably connected to the annular loading and mounting cylinder through the two sets of rotating slide rails, and the loading and mounting holes arranged at equal angles are located between the two sets of rotating slide rails.

6. The animal semen freezing device according to claim 5, characterized in that: The annular sealing cover is provided with a plurality of operating ports at equal intervals, and a rotating cover plate is rotatably provided to cooperate with the operating ports. A switch is provided between the rotating cover plate and the annular loading and mounting cylinder, and an opening and closing handle is provided on the rotating cover plate. An operating handle is provided on the other side of the combined mounting plate, and a rubber sleeve is wrapped around the middle of the operating handle.

7. The animal semen freezing device according to claim 1, characterized in that: A plurality of friction rubber rings are arranged at equal intervals on the outer side of the positioning and mounting column, and the friction rubber rings are in contact with the inner wall of the fixing sleeve.

8. The animal semen freezing device according to claim 1, characterized in that: A positioning fluid replenishment cylinder is arranged on the liquid nitrogen storage tank facing the sealing installation cover, and an annular positioning groove is arranged on the sealing installation cover to cooperate with the positioning fluid replenishment cylinder. A magnetic suction cup is embedded on the upper end of the liquid nitrogen storage tank outside the positioning fluid replenishment cylinder, and the magnetic suction cup is magnetically matched with the sealing installation cover.

9. The animal semen freezing device according to claim 8, characterized in that: The magnetic suction cup is provided with a sealing rubber tube, and one side of the sealing installation cover is provided with an annular sealing sleeve in coordination with the sealing rubber tube.

10. The animal semen freezing device according to claim 1, characterized in that: The temperature-sensitive deformation sheet is made of nickel metal or high entropy alloy.

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