Water bath cooling device for analytical chemistry

Abstract

This utility model relates to the field of analytical testing technology, specifically a water bath cooling device for analytical testing. It includes a device body, with a pick-and-place mechanism provided on the surface of the cover and the inner wall of the L-shaped seat. A universal placement mechanism is provided on the surfaces of the placement perforated plate, partition plate, and baffle plate. A temperature control mechanism is provided on the surface of the chamber and inside the cavity. This utility model not only enables quick and convenient pick-and-place of beakers on the surface of the placement perforated plate during use, reducing the time and difficulty for laboratory personnel, but also allows the water bath cooling device to accommodate beakers of different sizes, fully utilizes the limited space on the surface of the placement perforated plate, and improves the stability of beaker cooling. Furthermore, it ensures more precise water temperature inside the chamber, thereby guaranteeing efficient cooling of the beakers.

Description

Technical Field

[0001] This utility model relates to the field of analytical testing technology, specifically a water bath cooling device for analytical testing. Background Technology

[0002] In the process of laboratory analysis, it is sometimes necessary to cool beakers in order to process reagents. This requires the use of a water bath cooling device. However, most existing water bath cooling devices are simple water tank structures, which are not conducive to the stable placement of beakers and are prone to collisions. Moreover, the device itself does not have temperature monitoring functions, which affects the cooling effect on the beakers. In order to meet market needs, a water bath cooling device for analytical testing is required.

[0003] Existing water bath cooling devices are cumbersome and inconvenient to operate. The inconvenience of placing and removing beakers on the perforated plate surface increases the time and difficulty for operators. Furthermore, existing devices typically lack the ability to accommodate beakers of different sizes, failing to fully utilize the limited space on the perforated plate and resulting in insufficient cooling stability. Additionally, they often lack the ability to maintain a consistent water temperature, compromising the accuracy of internal temperature control and overall cooling efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a water bath cooling device for analytical testing, in order to solve the problems mentioned in the background art, such as the inconvenience of placing and removing beakers, the lack of universal placement of beakers of different sizes, and the lack of function to ensure water temperature.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water bath cooling device for analytical testing, comprising a device body, the device body including a cover, a controller, a housing, a placement perforated plate, a partition plate, a baffle plate, and an L-shaped seat. The controller is mounted on the surface of the housing, the placement perforated plate is mounted inside the housing, two sets of baffle plates are symmetrically arranged on the surface of the placement perforated plate, and multiple sets of partition plates for separating containers are also arranged on the surface of the placement perforated plate. An L-shaped seat is mounted on the surface at the top of the housing, the cover is arranged inside the L-shaped seat, a water tank is opened inside the housing, and a cavity is also opened inside the housing. A pick-and-place mechanism is arranged on the surface of the cover and the inner wall of the L-shaped seat. A universal placement mechanism is arranged on the surfaces of the placement perforated plate, the partition plate, and the baffle plate. A temperature control mechanism is arranged on the surface of the housing and inside the cavity.

[0006] Preferably, the number of partitions is six sets, a first temperature sensor is installed inside the box, frames are symmetrically installed on both sides of the box, handles are provided on the inner side of the frames, a second temperature sensor is installed inside the water tank, a liquid level sensor is installed on the inner wall of the box, an inlet pipe for water intake is installed on the surface of the box, and an outlet pipe for water discharge is installed on the surface of the box.

[0007] Preferably, the picking and placing mechanism consists of a positioning slot, an elastic clip, a positioning block, a guide groove, and a guide slider. Multiple sets of elastic clips are installed on the surface of the cover. The elastic clips engage with the inner wall of the L-shaped seat. The inner wall of the L-shaped seat is provided with a guide groove.

[0008] Preferably, guide sliders for sliding cooperation with guide grooves are symmetrically installed on both sides of the cover, and positioning blocks are installed on the surface of the guide sliders. The inner wall of the L-shaped seat is also provided with positioning slots for engaging with the positioning blocks.

[0009] Preferably, the temperature control mechanism consists of a cooling plate, a high thermal conductivity plate, a circulating pump, a pump box, a water pipe, and a fixed pipe. The cooling plate is installed on the inner wall of the cavity, and the input end of the cooling plate is electrically connected to the output end of the controller. Multiple sets of high thermal conductivity plates for conducting cooling to the water inside the water tank are installed on the inner wall of the cavity by screws. There are four sets of high thermal conductivity plates. The surface of the high thermal conductivity plates is in close contact with the surface of the cooling plate. The pump box is installed on one side of the cavity.

[0010] Preferably, a circulation pump is installed inside the pump box. The input end of the circulation pump is electrically connected to the output end of the controller. The input end of the circulation pump extends into the interior of the box. A water pipe is installed at the output end of the circulation pump. A fixing pipe is also installed on the surface of the box. The fixing pipe and the water pipe are connected by bolts. One end of the fixing pipe passes through the device body and extends into the interior of the water tank.

[0011] Preferably, the universal placement mechanism includes a guide groove, a rubber clip, a guide block, a fixing slot, and a fixing plate. The surface of the placement plate is arrayed with multiple sets of guide grooves, and the number of guide grooves is six sets. The inner wall of the guide groove is provided with multiple fixing slots.

[0012] Preferably, the bottom of the partition plate is equipped with a rubber block for engaging with the fixing slot, four sets of fixing plates are symmetrically installed on the surfaces of both sides of the placement hole plate, and guide blocks are symmetrically installed at both ends of the baffle plate, with the guide blocks slidingly engaging with the surfaces of the fixing plates.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the water bath cooling device for analysis and testing not only enables quick and convenient handling of beakers placed on the surface of the perforated plate, reducing the time and difficulty for laboratory personnel to handle beakers during operation, but also allows the water bath cooling device to be used to accommodate beakers of different sizes, making full use of the limited space on the surface of the perforated plate. At the same time, it can improve the stability of beaker cooling and ensure more accurate water temperature inside the chamber, thereby ensuring the cooling efficiency of the beakers. 1. With the addition of a pick-and-place mechanism, the user pulls the cover on the surface of the L-shaped base, causing the cover to slide inside the guide slide groove. Under the combined action of the guide slide groove and the guide slide, the cover is guided. At this time, the guide slide moves the positioning block away from the inside of the positioning slot. When the cover moves, the cover moves the elastic clip away from the inner wall of the L-shaped base, thus moving the cover away from the surface of the box. The user can directly place the beaker containing the sample onto the surface of the orifice plate through the box. After the beaker is placed, the user pushes the cover to close it onto the surface of the box. The pick-and-place mechanism makes it easier for the user to operate the device while pulling the cover, realizing the function of convenient beaker pick-and-place in the water bath cooling device. This allows for quick and easy pick-and-place of beakers on the surface of the orifice plate during the operation of the water bath cooling device, reducing the time and difficulty for the experimenter to pick up and place beakers during the operation. 2. With a universal placement mechanism, the user first places the baffles between adjacent fixed plates, then pushes the baffles downwards, causing the guide blocks to slide along the inner wall of the fixed plates, positioning the baffles on the surface of the placement plate. The combined action of the partition plates and the baffles separates the beakers, preventing collisions. When the partition plates move, the rubber clips on the surface of the partition plates are compressed and shrink, moving away from the inside of the fixed slots. After the partition plates are adjusted, the rubber clips at the bottom of the partition plates automatically engage with the corresponding fixed slots, ensuring that the distance between the partition plates can meet the separation needs of beakers of different sizes. This achieves the universal placement function of the water bath cooling device, allowing it to be used for beakers of different sizes, making full use of the limited space on the surface of the placement plate, and improving the stability of the beakers during cooling. 3. By setting a temperature control mechanism, the circulating pump inside the pump box is controlled to operate. Under the action of the circulating pump, water inside the box is drawn into the water tank. At this time, the controller controls the cooling chip inside the cavity to operate. Under the action of the high heat conductivity plate, the low temperature of the cold end of the cooling chip is transferred to the inside of the water tank to conduct cooling of the water inside the tank. When the second temperature sensor inside the water tank detects that the water temperature has reached the set value, the controller controls the circulating pump to operate. Under the action of the circulating pump, the cooled water inside the water tank flows back into the inside of the box. This realizes the function of the water bath cooling device to ensure the water temperature. Therefore, the water bath cooling device can ensure a more accurate water temperature inside the box when in use, thereby ensuring the cooling efficiency of the beaker. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model; Figure 3 This is an enlarged side view sectional diagram of the present invention; Figure 4 This is a top view enlarged cross-sectional schematic diagram of the perforated plate of this utility model; Figure 5 For the present utility model Figure 2 Enlarged schematic diagram of the loading and unloading mechanism.

[0015] In the diagram: 1. Device body; 10. Cover; 101. Controller; 11. Box; 12. Placement plate; 13. Handle; 14. Divider plate; 15. First temperature sensor; 151. Second temperature sensor; 16. Baffle plate; 17. Liquid level sensor; 18. Frame; 19. Water tank; 110. Cavity; 111. Outlet pipe; 112. Inlet pipe; 113. L-shaped seat; 2. Picking and placing mechanism; 21. Positioning slot; 22. Elastic clip; 23. Positioning block; 24. Guide groove; 25. Guide slider; 3. Temperature control mechanism; 31. Cooling element; 32. High thermal conductivity plate; 33. Circulation pump; 34. Pump box; 35. Water pipe; 36. Fixing pipe; 4. Universal placement mechanism; 41. Guide groove; 42. Rubber block; 43. Guide block; 44. Fixing slot; 45. Fixing plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0017] The structure of the water bath cooling device for analytical testing provided by this utility model is as follows: Figure 1 , Figure 2 and Figure 3As shown, the device includes a main body 1, which comprises a cover 10, a controller 101, a housing 11, a perforated plate 12, partition plates 14, baffle plates 16, and an L-shaped base 113. The controller 101 (e.g., LA series) is mounted on the surface of the housing 11. The perforated plate 12 is installed inside the housing 11. Two sets of baffle plates 16 are symmetrically arranged on the surface of the perforated plate 12. The surface of the perforated plate 12 also has six sets of partition plates 14 for separating the container. An L-shaped base 113 is mounted on the top surface of the housing 11, and a cover 10 is located inside the L-shaped base 113. A first temperature sensor 15 (e.g., SDN series) is installed inside the housing 11. The output of the first temperature sensor 15 is electrically connected to the input of the housing 11. Frames 18 are symmetrically mounted on both sides of the housing 11. A handle 13 is provided on the inner side of the body 18. The handle 13 rotates and engages with the inner wall of the body 18. A water tank 19 is provided inside the box 11. A second temperature sensor 151 is installed inside the water tank 19. The second temperature sensor 151 can be an SDN series sensor. The output terminal of the second temperature sensor 151 is electrically connected to the input terminal of the controller 101. A cavity 110 is also provided inside the box 11. The cavity 110 is located below the water tank 19. A liquid level sensor 17 is installed on the inner wall of the box 11. The liquid level sensor 17 can be an FS series sensor. The output terminal of the liquid level sensor 17 is electrically connected to the input terminal of the controller 101. A water inlet pipe 112 for water inlet is installed on the surface of the box 11. One end of the water inlet pipe 112 extends into the interior of the device body 1. A water outlet pipe 111 for water outlet is installed on the surface of the box 11. One end of the water outlet pipe 111 extends into the interior of the device body 1.

[0018] Furthermore, such as Figure 2 and Figure 5 As shown, the surface of the cover 10 and the inner wall of the L-shaped base 113 are provided with a pick-and-place mechanism 2. The pick-and-place mechanism 2 consists of a positioning slot 21, an elastic clip 22, a positioning block 23, a guide groove 24, and a guide slider 25. Multiple sets of elastic clips 22 are installed on the surface of the cover 10. The elastic clips 22 are engaged with the inner wall of the L-shaped base 113. The inner wall of the L-shaped base 113 is provided with a guide groove 24. Guide sliders 25 for sliding engagement with the guide groove 24 are symmetrically installed on the surfaces of both sides of the cover 10. Positioning blocks 23 are installed on the surface of the guide sliders 25. The inner wall of the L-shaped base 113 is also provided with a positioning slot 21 for engaging with the positioning block 23.

[0019] In practice, the user pulls the cover 10 on the surface of the L-shaped base 113, causing the cover 10 to drive the guide slider 25 to slide inside the guide groove 24. Under the combined action of the guide groove 24 and the guide slider 25, the cover 10 is guided. At this time, the guide slider 25 drives the positioning block 23 away from the inside of the positioning groove 21. When the cover 10 moves, the cover 10 drives the elastic clip 22 away from the inner wall of the L-shaped base 113, so that the cover 10 is away from the surface of the box 11. The user can directly place the beaker containing the sample on the surface of the placement plate 12 through the box 11. After the beaker is placed, the user pushes the cover 10 again to cover the surface of the box 11. Under the action of the pick-and-place mechanism 2, it is more convenient for the user to operate during the process of pulling the cover 10, so as to realize the function of convenient pick-and-place of beakers in the water bath cooling device.

[0020] Furthermore, such as Figure 2 and Figure 4 As shown, a universal placement mechanism 4 is provided on the surface of the perforated plate 12, the partition plate 14, and the baffle plate 16. The universal placement mechanism 4 includes a guide groove 41, a rubber block 42, a guide block 43, a fixing slot 44, and a fixing plate 45. The surface of the perforated plate 12 is arrayed with multiple sets of guide grooves 41, and there are six sets of guide grooves 41. Multiple fixing slots 44 are provided on the inner wall of the guide grooves 41. The bottom of the partition plate 14 is equipped with a rubber block 42 for engaging with the fixing slot 44. Four sets of fixing plates 45 are symmetrically installed on the two sides of the perforated plate 12. Guide blocks 43 are symmetrically installed at both ends of the baffle plate 16. The surfaces of the guide blocks 43 and the fixing plates 45 slide against each other.

[0021] In practice, the user first places the baffles 16 between adjacent fixed plates 45, then pushes the baffles 16 downwards, causing the guide blocks 43 to slide on the inner wall of the fixed plates 45, positioning the baffles 16 on the surface of the perforated plate 12. Under the combined action of the partition plate 14 and the baffles 16, the beakers can be separated to prevent collisions. As needed, the user pulls the partition plate 14, causing it to slide on the surface of the perforated plate 12. When the partition plate 14 moves, the rubber clips 42 on the surface of the partition plate 14 are compressed and shrink, moving away from the inside of the fixed slots 44. After the partition plate 14 is adjusted, the rubber clips 42 at the bottom of the partition plate 14 automatically snap into the corresponding fixed slots 44, so that the distance between the partition plates 14 can meet the separation needs of beakers of different sizes, thus realizing the function of the water bath cooling device for universal placement of beakers of different sizes.

[0022] Furthermore, such as Figure 2 and Figure 3As shown, a temperature control mechanism 3 is provided on the surface of the housing 11 and inside the cavity 110. The temperature control mechanism 3 consists of a cooling chip 31, a high heat conductivity plate 32, a circulating pump 33, a pump box 34, a water pipe 35, and a fixed pipe 36. The cooling chip 31 is installed on the inner wall of the cavity 110. The cooling chip 31 can be of the TEC series. The input end of the cooling chip 31 is electrically connected to the output end of the controller 101. Multiple sets of high heat conductivity plates 32 for conducting cooling of the water inside the water tank 19 are installed on the inner wall of the cavity 110 by screws. There are four sets of high heat conductivity plates 32. The surface of the high heat conductivity plate 32... The surface of the cooling chip 31 is in close contact with the surface of the housing 11. A pump box 34 is installed on one side of the housing 11. A circulation pump 33 is installed inside the pump box 34. The model of the circulation pump 33 can be ISG series. The input end of the circulation pump 33 is electrically connected to the output end of the controller 101. The input end of the circulation pump 33 extends into the interior of the housing 11. A water pipe 35 is installed at the output end of the circulation pump 33. A fixing pipe 36 is also installed on the surface of the housing 11. The fixing pipe 36 and the water pipe 35 are connected by bolts. One end of the fixing pipe 36 passes through the device body 1 and extends into the interior of the water tank 19.

[0023] During implementation, the circulation pump 33 inside the control pump box 34 is activated. Under the action of the circulation pump 33, water inside the tank 11 is pumped into the water tank 19. At this time, the controller 101 controls the cooling chip 31 inside the cavity 110 to work. Under the action of the high heat conductivity plate 32, the low temperature of the cold end of the cooling chip 31 is transferred to the inside of the water tank 19 to conduct cooling of the water inside the water tank 19. When the second temperature sensor 151 inside the water tank 19 detects that the water temperature has reached the set value, the controller 101 controls the circulation pump 33 to work. Under the action of the circulation pump 33, the cooled water inside the water tank 19 is returned to the inside of the tank 11 to realize the function of the water bath cooling device to ensure the water temperature.

[0024] Working principle: In use, first place the device body 1 in the designated position. The user pulls the cover 10 on the surface of the L-shaped base 113, causing the cover 10 to move the guide slider 25 inside the guide groove 24. Under the combined action of the guide groove 24 and the guide slider 25, the cover 10 is guided. At this time, the guide slider 25 moves the positioning block 23 away from the inside of the positioning groove 21. When the cover 10 moves, the cover 10 moves the elastic clip 22 away from the inner wall of the L-shaped base 113, thus moving the cover 10 away from the surface of the box 11. Users can directly place the beaker containing the sample onto the surface of the perforated plate 12 through the housing 11. After the beaker is placed, the user can push the lid 10 to cover the surface of the housing 11. The lifting and placing mechanism 2 makes it easier for the user to operate the lid 10 during the lifting and placing process, so as to realize the function of the water bath cooling device to easily lift and place the beaker on the surface of the perforated plate 12. This reduces the time and difficulty for the experimenter to lift and place the beaker during the operation.

[0025] Subsequently, the user can lift the handle 13 to move the box 11 smoothly to the desired position, add cooling water into the box 11 through the water inlet pipe 112, and monitor the water level inside the box 11 under the action of the liquid level sensor 17. When the liquid level sensor 17 detects that the water level inside the box 11 has reached the set height, the liquid level sensor 17 sends a signal to the controller 101. After receiving the signal from the liquid level sensor 17, the controller 101 stops adding water into the box 11, and the water can be discharged from the box 11 through the water outlet pipe 111.

[0026] Subsequently, when the beakers are placed on the surface of the perforated plate 12, the user can adjust or remove the position of the partition plate 14 according to the size of the beakers, so that beakers of different sizes can be placed on the surface of the perforated plate 12 for experimentation. The user first places the baffle plates 16 between adjacent fixed plates 45, then pushes the baffle plates 16 downwards, causing the guide blocks 43 to slide along the inner wall of the fixed plates 45, thus positioning the baffle plates 16 on the surface of the perforated plate 12. The combined action of the partition plates 14 and 16 separates the beakers, preventing collisions. The user can then pull the partition plates 14 as needed. The partition plate 14 slides on the surface of the perforated plate 12. When the partition plate 14 moves, the rubber clips 42 on the surface of the partition plate 14 are squeezed and contracted, moving away from the interior of the fixed slot 44. After the partition plate 14 is adjusted, the rubber clips 42 at the bottom of the partition plate 14 automatically snap into the interior of the corresponding fixed slot 44, so that the distance between the partition plates 14 can meet the separation needs of beakers of different sizes, so as to realize the function of the water bath cooling device for the universal placement of beakers of different sizes. This allows the water bath cooling device to be used to meet the placement needs of beakers of different sizes, make full use of the limited space on the surface of the perforated plate 12, and improve the stability of beaker cooling.

[0027] Subsequently, the temperature of the cooling water inside the chamber 11 is monitored in real time by the first temperature sensor 15. If the first temperature sensor 15 detects that the water temperature inside the chamber 11 does not meet the requirements for the next experiment after the sample experiment inside the beaker is completed, it sends a signal to the controller 101. Upon receiving the signal from the first temperature sensor 15, the controller 101 automatically controls the circulation pump 33 inside the pump box 34 to operate. Under the action of the circulation pump 33, water inside the chamber 11 is pumped into the water tank 19. At this time, the controller 101 controls the cooling element 31 inside the cavity 110 to operate. Under the action of the high heat conductivity plate 32, the low temperature of the cold end of the cooling chip 31 is transferred to the interior of the water tank 19 to conduct cooling of the water inside the water tank 19. When the second temperature sensor 151 inside the water tank 19 detects that the water temperature has reached the set value, the controller 101 controls the circulation pump 33 to work. Under the action of the circulation pump 33, the cooled water inside the water tank 19 is returned to the interior of the chamber 11 to realize the function of the water bath cooling device to ensure the water temperature. This makes the water temperature inside the chamber 11 more accurate when the water bath cooling device is used, thereby ensuring the cooling efficiency of the beaker and finally completing the use of the water bath cooling device.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A water bath cooling device for analysis assays, comprising a device body (1), characterized in that: The device body (1) includes a cover (10), a controller (101), a housing (11), a placement plate (12), a partition plate (14), a baffle plate (16), and an L-shaped base (113). The controller (101) is installed on the surface of the housing (11), and the placement plate (12) is installed inside the housing (11). Two sets of baffle plates (16) are symmetrically arranged on the surface of the placement plate (12). The surface of the placement plate (12) is also provided with multiple sets of partition plates (14) for separating the containers. At the top of the housing (11) An L-shaped seat (113) is installed on the surface of the box (11). A cover (10) is provided on the inner side of the L-shaped seat (113). A water tank (19) is provided inside the box (11). A cavity (110) is also provided inside the box (11). A pick-and-place mechanism (2) is provided on the surface of the cover (10) and the inner wall of the L-shaped seat (113). A universal placement mechanism (4) is provided on the surface of the placement hole plate (12), the partition plate (14) and the baffle plate (16). A temperature control mechanism (3) is provided on the surface of the box (11) and the inside of the cavity (110).

2. The water bath cooling device for analytical testing according to claim 1, characterized in that: The number of partition plates (14) is six. A first temperature sensor (15) is installed inside the box (11). Frames (18) are symmetrically installed on both sides of the box (11). A handle (13) is provided on the inner side of the frame (18). A second temperature sensor (151) is installed inside the water tank (19). A liquid level sensor (17) is installed on the inner wall of the box (11). A water inlet pipe (112) for water inlet is installed on the surface of the box (11). A water outlet pipe (111) for water outlet is installed on the surface of the box (11).

3. The water bath cooling device for analytical testing according to claim 1, characterized in that: The picking and placing mechanism (2) is composed of a positioning slot (21), an elastic clip (22), a positioning block (23), a guide groove (24), and a guide slider (25). Multiple sets of elastic clips (22) are installed on the surface of the cover (10). The elastic clips (22) are engaged with the inner wall of the L-shaped seat (113). The inner wall of the L-shaped seat (113) is provided with a guide groove (24).

4. The water bath cooling device for analytical testing according to claim 3, characterized in that: The cover (10) has guide sliders (25) symmetrically installed on both sides for sliding cooperation with guide slide grooves (24). The guide sliders (25) have positioning blocks (23) installed on their surfaces. The inner wall of the L-shaped seat (113) also has positioning slots (21) for engaging with positioning blocks (23).

5. A water bath cooling unit for use in analytical testing according to claim 1, characterized in that: The temperature control mechanism (3) consists of a cooling plate (31), a high heat conductivity plate (32), a circulating pump (33), a pump box (34), a water pipe (35), and a fixed pipe (36). The inner wall of the cavity (110) is equipped with a cooling plate (31). The inner wall of the cavity (110) is equipped with multiple sets of high heat conductivity plates (32) for conducting cooling of the water inside the water tank (19) by screws. There are four sets of high heat conductivity plates (32). The surface of the high heat conductivity plates (32) is in close contact with the surface of the cooling plate (31). The pump box (34) is installed on one side of the box (11).

6. A water bath cooling device for use in analytical testing according to claim 5, characterized in that: The pump box (34) is equipped with a circulation pump (33). The input end of the circulation pump (33) extends into the interior of the box body (11). The output end of the circulation pump (33) is equipped with a water pipe (35). A fixing pipe (36) is also installed on the surface of the box body (11). The fixing pipe (36) and the water pipe (35) are connected by bolts. One end of the fixing pipe (36) passes through the device body (1) and extends into the interior of the water tank (19).

7. The water bath cooling device for analytical testing according to claim 1, characterized in that: The universal placement mechanism (4) includes a guide groove (41), a rubber block (42), a guide block (43), a fixed slot (44), and a fixing plate (45). The surface array of the placement hole plate (12) has multiple sets of guide grooves (41), and the number of guide grooves (41) is six. The inner wall of the guide groove (41) has multiple fixed slots (44).

8. A water bath cooling unit for use in analytical testing according to claim 7, characterized in that: The bottom of the partition plate (14) is equipped with a rubber block (42) for engaging with the fixed slot (44). Four sets of fixed plates (45) are symmetrically installed on the surfaces of both sides of the placement hole plate (12). Guide blocks (43) are symmetrically installed at both ends of the baffle plate (16). The guide blocks (43) and the surfaces of the fixed plates (45) slide against each other.

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