Precisely temperature-controlled bovine semen storage box

Abstract

This utility model relates to a bovine semen storage box capable of precise temperature control, belonging to the technical field of frozen semen storage devices. This utility model effectively reduces the intrusion of external heat through a double-layer heat insulation structure of the outer casing combined with a top heat insulation plate. Simultaneously, the distributed layout of semiconductor cooling chips, combined with real-time temperature monitoring by temperature sensors, ensures uniform and stable temperature throughout the box. The rotating design of the cylindrical tray rack, combined with a pop-out mechanism, enables convenient loading and unloading of sample tubes, avoiding frequent opening of the box lid. This reduces interference with the internal temperature during sample storage and retrieval, significantly improving the reliability of bovine semen storage and sperm viability.

Description

Technical Field

[0001] This utility model belongs to the technical field of frozen semen storage devices, specifically relating to a bovine semen storage box that can achieve precise temperature control. Background Technology

[0002] In cattle breeding, high-quality storage of bovine semen is a crucial step in ensuring reproductive efficiency and genetic improvement. Currently, various devices are available on the market for storing bovine semen, which typically employ cryogenic freezing technology to maintain the semen's biological activity.

[0003] However, traditional semen cryovials require frequent opening of the lid when storing or retrieving samples, directly exposing the internal environment to the outside air. This operation causes rapid temperature fluctuations and uneven temperature distribution in different areas, making precise temperature control difficult and significantly affecting the stability of the storage environment. Consequently, this reduces sperm viability and negatively impacts the quality and subsequent use of bovine semen. Therefore, a storage device that can reduce temperature fluctuations and achieve precise temperature control is needed to meet the stringent environmental stability requirements for bovine semen storage. Utility Model Content

[0004] To overcome the problem in the background art of traditional semen cryovials where frequent opening of the lid during sample storage and retrieval exposes the internal environment to the outside air, easily causing rapid temperature fluctuations and uneven temperature distribution in different locations, thus reducing sperm viability, this utility model provides a bovine semen storage box with precise temperature control. Through the use of a double-layer heat insulation structure on the outer casing combined with a top heat insulation plate, the intrusion of external heat is effectively reduced. Simultaneously, the distributed layout of semiconductor cooling chips, combined with real-time temperature monitoring by temperature sensors, ensures uniform and stable temperature throughout the box. The rotating design of the cylindrical tray rack, combined with a pop-out mechanism, enables convenient loading and unloading of sample tubes, avoiding frequent lid opening operations, thereby reducing interference with the internal temperature during sample storage and retrieval, and significantly improving the reliability of bovine semen storage and sperm viability.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A bovine semen storage box capable of precise temperature control mainly includes an outer casing, an inner liner, a tray frame, a heat insulation board, a lid, and a pop-out mechanism. The outer casing adopts a double-layer structure, with the interlayer filled with vacuum insulation material. A lid is hinged to the top, and the lid is filled with vacuum insulation material. A sealing ring is embedded in the top of the outer casing, and the side of the lid is fixedly connected to the outer casing via fasteners. The inner liner is installed inside the outer casing, and a heat insulation board is sealed to the top. The top of the heat insulation board has an opening for opening and closing, and is connected to... It has a sealing plug; multiple sets of series-connected thermoelectric coolers are installed on the bottom and four outer walls of the inner liner; a mesh heat dissipation vent is opened at the bottom of the outer casing; a cooling fan is installed at the mesh heat dissipation vent at the bottom of the outer casing via a support plate; a temperature sensor is embedded in the inner wall of the inner liner; a controller is installed on the side wall of the outer casing and is electrically connected to the temperature sensor, thermoelectric coolers and cooling fan; a cylindrical tray is installed at the center of the inner liner via a bearing for rotating and placing sample tubes; an ejection mechanism is installed inside the outer casing at the bottom of the tray for ejecting sample tubes.

[0006] The tray frame includes a rotating shaft, an annular bracket, a limiting plate, a connecting rod, and a tray. The bottom end of the rotating shaft is mounted at the center of the inner liner via a bearing, and the top end passes through a heat insulation plate and is rotatably connected to it via a sealed bearing. The limiting plate is mounted on the top of the rotating shaft, and positioning holes for placing sample tubes are evenly distributed along the circumference of the limiting plate. The limiting plate is mounted on the bottom of the rotating shaft, and the annular bracket is mounted on the bottom of the limiting plate via the connecting rod. An annular limiting groove for supporting the sample tubes is formed between the inner ring of the limiting plate and the outer ring of the tray. The distance between the limiting plate and the annular bracket is less than the height of the sample tube. A knob is mounted on the top of the rotating shaft, and the outer wall of the knob has scale markings corresponding to the positioning holes.

[0007] The pop-out mechanism includes a guide rod, a spring, and a trapezoidal push plate. The bottom end of the guide rod is fixed to the bottom of the inner liner and located in the annular limiting groove. The bottom of the trapezoidal push plate has a guide hole and is slidably sleeved on the guide rod. The spring is installed in the guide hole and abuts against the top end of the guide rod.

[0008] The ring bracket and the limiting plate are covered with a cushioning pad, which is made of a flexible, low-temperature resistant material.

[0009] The beneficial effects of this utility model are:

[0010] This invention effectively reduces the intrusion of external heat by using a double-layer heat insulation structure for the outer casing combined with a top heat insulation plate. At the same time, the distributed layout of semiconductor cooling chips, combined with real-time temperature monitoring by temperature sensors, ensures that the temperature in each area of ​​the casing is uniform and stable. The rotating design of the cylindrical tray rack, combined with the pop-out mechanism, enables convenient loading and unloading of sample tubes, avoiding frequent opening of the casing lid. This reduces the interference with the internal temperature when storing and retrieving samples, and significantly improves the reliability of bovine semen storage and sperm viability. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a three-dimensional cross-sectional view of the present invention.

[0013] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0014] Figure 4 This is a 3D schematic diagram of the pallet rack installation status.

[0015] Figure 5 This is a three-dimensional schematic diagram of the working state of this utility model.

[0016] The attached figures are labeled as follows:

[0017] 1. Outer casing; 2. Inner liner; 3. Tray frame; 4. Insulation board; 5. Lid; 6. Sealing ring; 9. Sealing plug; 10. Semiconductor cooling chip; 11. Mesh heat dissipation vent; 12. Cooling fan; 14. Temperature sensor; 15. Controller; 18. Pop-out mechanism; 19. Rotary shaft; 20. Annular bracket; 21. Limiting plate; 22. Connecting rod; 23. Tray; 25. Positioning hole; 27. Knob; 29. ​​Guide rod; 30. Spring; 31. Trapezoidal push plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0019] This utility model discloses a bovine semen storage box capable of precise temperature control, mainly comprising an outer box 1, an inner liner 2, a tray rack 3, a heat insulation plate 4, a box lid 5, and a pop-out mechanism 18. The outer box 1 has a double-layer structure, with its interlayer filled with vacuum insulation material to reduce the impact of external ambient temperature on the internal storage environment. The top of the outer box 1 is connected to the box lid 5 via a hinge. The box lid 5 is also filled with vacuum insulation material. A sealing ring 6 is embedded at the edge of the outer box 1 to enhance sealing. The side of the box lid 5 is fixedly connected to the outer box 1 via fasteners, forming a completely sealed space when closed. The inner liner 2 is installed inside the outer box 1, and its top is sealed with the heat insulation plate 4. The top of the heat insulation plate 4 has an access port and a sealing plug 9 for storing and retrieving sample tubes.

[0020] Multiple sets of series-connected thermoelectric coolers 10 are installed on the bottom and outer walls of the inner liner 2. Each set of thermoelectric coolers 10 is electrically connected to the controller 15 via wires. A mesh heat dissipation vent 11 is provided at the bottom of the outer casing 1. A cooling fan 12 is mounted at the mesh heat dissipation vent 11 via a support plate and is connected to the controller 15 via wires. A temperature sensor 14 is embedded in the inner wall of the inner liner 2 to monitor the temperature changes inside the inner liner 2 in real time. Its signal output terminal is electrically connected to the input terminal of the controller 15. A cylindrical tray frame 3 is mounted at the center of the inner liner 2 via bearings to support and rotate the sample tubes. An ejection mechanism 18 is located at the bottom of the tray frame 3 and is fixedly connected to the bottom of the outer casing 1 to assist in removing the sample tubes.

[0021] The tray frame 3 includes a rotating shaft 19, an annular bracket 20, a limiting plate 21, a connecting rod 22, and a tray 23. The bottom end of the rotating shaft 19 is mounted at the center of the inner liner 2 via a bearing, and the top end passes through the heat insulation plate 4 and is rotatably connected to it via a sealed bearing, ensuring that the rotating shaft 19 will not damage the sealing of the heat insulation plate 4 during rotation. The limiting plate 21 is fixed to the top of the rotating shaft 19 and has multiple positioning holes 25 evenly distributed along the circumference for placing sample tubes. The annular bracket 20 is mounted at the bottom of the limiting plate 21 via the connecting rod 22, and its inner ring forms an annular limiting groove with the outer ring of the tray 23, which is used to support the sample tube and restrict its radial movement. The distance between the limiting plate 21 and the annular bracket 20 is less than the height of the sample tube to ensure that the sample tube remains stable during rotation. A knob 27 is installed on the top of the rotating shaft 19, and the outer wall of the knob 27 has scale markings, each scale marking corresponding to a positioning hole 25, which facilitates the user to quickly locate the position of the target sample tube.

[0022] The ejection mechanism 18 includes a guide rod 29, a spring 30, and a trapezoidal push plate 31. The bottom end of the guide rod 29 is fixed to the bottom of the inner liner 2 and located within the annular limiting groove. The bottom of the trapezoidal push plate 31 has a guide hole 32 and is slidably fitted onto the guide rod 29. The spring 30 is installed in the guide hole 32 and abuts against the top of the guide rod 29. When the tray frame 3 rotates, the bottom of the sample tube contacts the trapezoidal push plate 31 and slides along its inclined surface, causing the trapezoidal push plate 31 to move downwards along the guide rod 29. At the same time, the spring 30 is compressed. When the top of the target sample tube aligns with the pick-up and drop-off port, the bottom of the target sample tube rotates to the top of the trapezoidal push plate 31. At this time, the sealing plug 9 is opened, and the spring 30 releases its elastic potential energy to spring up the target sample tube, exposing the top of the target sample tube to the pick-up and drop-off port, making it easy for the user to remove the target sample tube. To protect the stability of the sample tube during rotation, the surfaces of the annular bracket 20 and the limiting plate 21 are covered with a buffer pad 33. The buffer pad 33 is made of a flexible, low-temperature resistant material that can maintain good flexibility in low-temperature environments.

[0023] The working principle of this utility model is as follows: First, the semen of breeding cattle is loaded into the sample tube. Then, the tray frame 3 is rotated to insert the sample tubes one by one into the positioning holes 25 on the limiting plate 21 until all sample tubes are properly placed. After that, the box cover 5 is closed and fixed with fasteners. The controller 15 starts the semiconductor cooling chip 10 and the cooling fan 12 for cooling operation. The temperature sensor 14 monitors the temperature change inside the inner liner 2 in real time and transmits the data to the controller 15. The controller 15 adjusts the working state of the semiconductor cooling chip 10 and the speed of the cooling fan 12 according to the set target temperature to maintain a constant temperature inside the inner liner 2. When it is necessary to remove a sample tube, the user opens the box cover 5 and manually rotates the tray frame 3 according to the scale markings on the knob 27 to rotate the target sample tube to the pick-up / drop-off position. During this process, the bottom of the sample tube contacts the trapezoidal push plate 31 and slides along its inclined surface. The spring 30 is gradually compressed. When the top of the target sample tube aligns with the pick-up / drop-off port, the sealing plug 9 is opened, and the spring 30 releases its elastic potential energy to spring the sample tube up. The user can then easily remove the target sample tube. After sampling, the sealing plug 9 is closed again to maintain the low-temperature environment inside the inner liner 2. Through the above technical solution, this utility model achieves the stability of the semen storage environment in bovine semen, reduces the impact of temperature fluctuations on sperm motility, simplifies the sample tube storage and retrieval operation, and improves work efficiency.

[0024] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principles of this utility model are further explained below in conjunction with specific application scenarios.

[0025] In use, first insert the sample tubes containing bovine semen one by one into the positioning holes 25 on the limiting plate 21, ensuring that each sample tube is properly positioned. The distance between the limiting plate 21 and the annular bracket 20 is less than the height of the sample tube, so that the sample tube can remain stable after insertion and will not tip over or collide due to rotation or movement. The buffer pads 33 covering the surface of the annular bracket 20 and the limiting plate 21 are made of flexible low-temperature resistant material, which can maintain good flexibility in low-temperature environments, thereby further protecting the sample tubes from damage. After the sample tubes are placed, close the lid 5 and fix it with fasteners. At this time, a complete sealed space is formed between the outer box 1 and the lid 5 through the sealing ring 6, effectively preventing outside air from entering the inner liner 2.

[0026] Subsequently, the thermoelectric cooler 10 and cooling fan 12 are activated for cooling. Multiple sets of series-connected thermoelectric coolers 10, installed on the bottom and outer walls of the inner liner 2, are electrically connected to the controller 15 via wires. The cooling fan 12 is mounted on the mesh ventilation opening 11 at the bottom of the outer casing 1 via a support plate and is connected to the controller 15. The temperature sensor 14 is embedded in the inner wall of the inner liner 2 to monitor temperature changes in real time and transmits the data to the controller 15. When the temperature sensor 14 detects that the temperature inside the inner liner 2 deviates from the set target value, the controller 15 adjusts the working state of the thermoelectric cooler 10 and the speed of the cooling fan 12 according to the feedback signal to quickly restore a constant low-temperature environment inside the inner liner 2. This dynamic control mechanism significantly reduces temperature fluctuations, ensuring that the storage environment inside the inner liner 2 is always maintained within the optimal temperature range suitable for the preservation of bovine semen.

[0027] When a specific sample tube needs to be removed, the user opens the lid 5 and manually rotates the tray 3 using the knob 27. The knob 27 has graduated markings on its outer wall, each marking corresponding to a sample tube position in the positioning hole 25, facilitating quick positioning of the target sample tube. During rotation, the shaft 19 drives the tray 3 to rotate via bearings. Simultaneously, the bottom of the sample tube contacts the trapezoidal push plate 31 and slides along its inclined surface, causing the trapezoidal push plate 31 to move downwards along the guide rod. At the same time, the spring 30 is gradually compressed. This process utilizes the inclined surface design of the trapezoidal push plate 31 to convert the radial movement of the sample tube into the elastic potential energy of the spring 30, providing power for the subsequent ejection operation. When the target sample tube rotates to the pick-and-place port position, its top precisely aligns with the port. At this point, the sealing plug 9 is opened, and the spring 30 releases its elastic potential energy, ejecting the target sample tube from the positioning hole 25, exposing its top portion in the pick-and-place port for easy removal by the user.

[0028] After sampling is completed, the sealing plug 9 is closed again to maintain the low-temperature environment inside the inner liner 2. Throughout the storage and retrieval process, since only the sealing plug 9 needs to be opened instead of the entire lid 5, the influence of outside air on the inner liner 2 is minimized, avoiding the temperature fluctuation problem caused by the frequent opening of the lid 5 in traditional freezers.

[0029] This invention effectively reduces the intrusion of external heat by using a double-layer heat insulation structure for the outer casing combined with a top heat insulation plate. At the same time, the distributed layout of semiconductor cooling chips, combined with real-time temperature monitoring by temperature sensors, ensures that the temperature in each area of ​​the casing is uniform and stable. The rotating design of the cylindrical tray rack, combined with the pop-out mechanism, enables convenient loading and unloading of sample tubes, avoiding frequent opening of the casing lid. This reduces the interference with the internal temperature when storing and retrieving samples, significantly improving the reliability of bovine semen storage and sperm viability, and meeting the stringent requirements for environmental stability in bovine semen storage.

[0030] All content not described in detail in this specification is prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are prior art, and will not be described further here.

[0031] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A bovine semen storage box capable of precise temperature control, characterized in that: The system includes an outer casing (1), an inner liner (2), a tray frame (3), a heat insulation board (4), a lid (5), and a pop-out mechanism (18). The outer casing (1) has a double-layer structure with vacuum insulation material filling the interlayer. The top is connected to the lid (5) via a hinge. The lid (5) is filled with vacuum insulation material. A sealing ring (6) is embedded in the top of the outer casing (1). The side of the lid (5) is fixedly connected to the outer casing (1) via fasteners. The inner liner (2) is installed inside the outer casing (1). The top is sealed with a heat insulation board (4). The heat insulation board (4) has an opening for taking out and putting in, and a sealing plug (9) is connected to it. The bottom and the outer walls of the inner liner (2) are respectively installed with... There are multiple sets of semiconductor cooling chips (10) connected in series. The bottom of the outer casing (1) is provided with a mesh heat dissipation port (11). The cooling fan (12) is installed at the mesh heat dissipation port (11) through a support plate. The temperature sensor (14) is embedded in the inner wall of the inner liner (2). The controller (15) is installed on the side wall of the outer casing (1) and electrically connected to the temperature sensor (14), the semiconductor cooling chip (10) and the cooling fan (12). The tray frame (3) is installed in the center of the inner liner (2) through a bearing and is used to carry the sample tube. The ejection mechanism (18) is located at the bottom of the tray frame (3) and is fixedly connected to the bottom of the outer casing (1) and is used to eject the sample tube.

2. The bovine semen storage box with precise temperature control according to claim 1, characterized in that: The tray frame (3) includes a rotating shaft (19), an annular bracket (20), a limiting plate (21), a connecting rod (22), and a tray (23). The bottom end of the rotating shaft (19) is installed in the center of the inner liner (2) through a bearing, and the top end passes through the heat insulation plate (4) and is rotatably connected to it through a sealed bearing. The limiting plate (21) is fixed on the top of the rotating shaft (19) and has multiple positioning holes (25) evenly opened along the circumferential direction for placing sample tubes. The annular bracket (20) is installed at the bottom of the limiting plate (21) through the connecting rod (22), and its inner ring forms an annular limiting groove with the outer ring of the tray (23) for supporting the sample tube and restricting its radial movement. The distance between the limiting plate (21) and the annular bracket (20) is less than the height of the sample tube. A knob (27) is installed on the top of the rotating shaft (19), and the outer wall of the knob (27) is marked with scale marks, each scale mark corresponding to a positioning hole (25).

3. The bovine semen storage box with precise temperature control according to claim 2, characterized in that: The pop-out mechanism (18) includes a guide rod (29), a spring (30) and a trapezoidal push plate (31). The bottom end of the guide rod (29) is fixed to the bottom of the inner liner (2) and located in the annular limiting groove. The bottom of the trapezoidal push plate (31) has a guide hole (32) and is slidably sleeved on the guide rod (29). The spring (30) is installed in the guide hole (32) and abuts against the top of the guide rod (29).

4. The bovine semen storage box with precise temperature control according to claim 2, characterized in that: The surface of the ring bracket (20) and the limiting plate (21) is covered with a buffer pad (33), which is made of a flexible low-temperature resistant material.

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