Experimental water tank

Abstract

The utility model relates to the technical field of pipe performance testing devices, in particular to an experimental water tank which comprises a tank body with a top opening, a first tank cover, a first driving structure, a second tank cover and a second driving structure. One end of the first box cover is hinged to the top end of the box body, an operation opening is formed in the other end of the first box cover, and the first driving structure is used for driving the first box cover to open and close; the second box cover is slidably connected with the first box cover, the second box cover is arranged corresponding to the operation opening, and the second driving structure is used for driving the second box cover to open and shield the operation opening; at least one first partition plate is arranged in the box body and divides the box body into a plurality of first cavities in the length direction of the first partition plate. According to the experimental water tank, the water temperature change is effectively reduced, the reliability and accuracy of experimental results are improved, and the technical problems that a tank cover of an existing experimental water tank is fixed in size and still cannot be well suitable for samples of different specifications, and when small-specification samples are tested, the reliability and accuracy of test results are low are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe performance testing devices, and in particular to an experimental water tank. Background Technology

[0002] Hydrostatic strength is an important mechanical indicator for evaluating the safety and reliability of thermoplastic pipes. Currently, water tanks are commonly used in laboratories to conveniently and accurately test the hydrostatic strength of pipes. Pipe testing involves various temperature conditions, and opening the water tank lid before each test causes significant temperature changes, which can greatly affect the results of tests at different temperatures, especially high-temperature tests. This is because temperature variations alter the properties of the pipe material, thus affecting its performance. Therefore, it is crucial to strictly control the internal temperature of the water tank during hydrostatic strength testing to avoid affecting the accuracy of the results.

[0003] Multi-lid, multi-compartment laboratory water tanks have emerged on the market. When sample injection or extraction is required, only one lid needs to be opened, and the operation performed in the corresponding compartment. This design reduces the impact on the tank temperature. However, the fixed lid size of these tanks still makes them unsuitable for samples of different sizes. Whether testing large or small samples, a fixed-size lid must be opened. When testing small samples, the water surface area in contact with air is still relatively large, causing significant temperature fluctuations and resulting in low accuracy of the final test results. Furthermore, the fixed compartment space of the laboratory water tank also limits the product's applicability. Utility Model Content

[0004] The main objective of this invention is to provide an experimental water tank that reduces the surface area of ​​water in contact with air, effectively minimizing water temperature fluctuations and thus improving the reliability and accuracy of experimental results. It is suitable for samples of different sizes. This invention solves the technical problem that current experimental water tanks have fixed lid sizes, making them unsuitable for different sample sizes. Furthermore, when testing small samples, the large surface area of ​​water in contact with air leads to significant temperature variations, resulting in low reliability and accuracy of the final test results.

[0005] To achieve the above objectives, the present invention proposes an experimental water tank comprising a tank body with a top opening, a first tank cover, a first driving structure, a second tank cover, and a second driving structure; one end of the first tank cover is hinged to the top of the tank body, and the other end of the first tank cover has an operating port; both ends of the first driving structure are respectively connected to the tank body and the first tank cover, and the first driving structure is used to drive the first tank cover to open and close.

[0006] The second box cover is slidably connected to the first box cover. The second box cover is set corresponding to the operation port. The two ends of the second drive structure are respectively connected to the second box cover and the first box cover. The second drive structure is used to drive the second box cover to open and cover the operation port.

[0007] The box body is provided with at least one first partition, which divides the box body into several first cavities along its own length direction. The number of first box covers is the same as the number of first cavities, and the first box covers are provided in a one-to-one correspondence with the first cavities. Each first box cover can be opened and closed independently.

[0008] Optionally, the first box cover has two opposing guide rails on the side facing the box body. The two guide rails are corresponding to the operation port. The guide rails extend along the driving direction of the second driving structure. The two ends of the second box cover are slidably connected to the two guide rails respectively.

[0009] Optionally, the guide rail is L-shaped.

[0010] Optionally, the first drive structure includes a first connector, a first cylinder, and a second connector. One end of the first connector is fixedly connected to the side of the first cover away from the housing, and the other end of the first connector is rotatably connected to the output end of the first cylinder. The end of the first cylinder away from the first connector is rotatably connected to one end of the second connector, and the other end of the second connector is fixedly connected to the housing.

[0011] The second drive structure includes a third connector and a second cylinder. The third connector is disposed on the side of the second cover opposite to the housing body, and the second cylinder is disposed on the side of the first cover opposite to the housing body. The third connector is fixedly connected to the output end of the second cylinder.

[0012] Optionally, at least one second partition is detachably provided in the first cavity, and the second partition divides the first cavity into a plurality of second cavities along the length direction of the first cavity, and at least one second cavity is provided corresponding to the operation port.

[0013] Optionally, the experimental water tank further includes a heating element, and the heating element is provided at the bottom of each of the second cavities.

[0014] Optionally, the housing has several water inlets and several drain outlets. The water inlets are connected to one end of a water inlet pipe, and the drain outlets are connected to one end of a drain pipe. Each second cavity is connected to at least one water inlet and at least one drain outlet.

[0015] Optionally, the experimental water tank further includes a control device, which is connected to the first cylinder, the second cylinder, and the heating element.

[0016] Optionally, the control device includes a console and several control knobs. The console is connected to the housing and extends along the length of the housing. The several control knobs are located at the upper end of the console.

[0017] Optionally, the experimental water tank further includes a bracket connected to the bottom of the tank body.

[0018] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0019] 1. By creating an operating port on the first tank cover, with each first tank cover corresponding to a first cavity, and allowing each first tank cover to open and close independently, and by configuring a first tank cover, a first driving structure, a second tank cover, and a second driving structure, wherein the second tank cover is slidably connected to the first tank cover, the following design allows for independent operation: For large-size sample testing, the first driving structure can be used to open and close the entire first tank cover for testing; for small-size sample testing, only the second driving structure needs to be used to open the operating port on the second tank cover, allowing the tester to operate through the port. After operation, the operating port can be covered, without needing to open the entire first tank cover. Furthermore, the opening and closing of each first tank cover is independent; opening or closing the first tank cover of one first cavity will not affect the others, avoiding increasing the water-air contact area in other first cavities. This experimental water tank reduces the water-air contact area, effectively reducing water temperature changes and thus improving the reliability and accuracy of experimental results.

[0020] 2. This experimental water tank can be operated by opening either the first or second lid according to the sample specifications, making it suitable for samples of different sizes. The tank is equipped with at least one first partition, which divides the tank into several first chambers along its length. This allows for the simultaneous testing of multiple samples. Testers can select different first chambers for testing based on the requirements of different product specifications, test temperatures, and test times, meeting the testing needs of multiple samples. It can also test samples of different specifications simultaneously. Therefore, this experimental water tank has high applicability. In addition, it can reduce the power consumption caused by water temperature changes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an experimental water tank according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a side view of an experimental water tank according to an embodiment of the present invention;

[0024] Figure 4 This is a top view of an experimental water tank according to an embodiment of the present invention;

[0025] Figure 5 This is a rear view of an experimental water tank according to an embodiment of the present invention;

[0026] Figure 6 This is a front view of an experimental water tank according to an embodiment of the present invention.

[0027] The components are as follows: 1. Box body; 11. First partition; 12. First cavity; 13. Second partition; 14. Second cavity; 15. Water inlet; 16. Drain outlet; 17. Water inlet pipe; 18. Drain pipe; 2. First box cover; 21. Operating port; 22. Guide rail; 221. First connecting plate; 222. Second connecting plate; 3. First drive structure; 31. First connector; 32. First cylinder; 321. First cylinder body; 322. First piston rod; 33. Second connector; 4. Second box cover; 5. Second drive structure; 51. Third connector; 52. Second cylinder; 521. Second cylinder body; 522. Second piston rod; 6. Heating element; 7. Control device; 71. Control console; 72. Control knob; 8. Bracket. Detailed Implementation

[0028] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] This utility model proposes an experimental water tank.

[0033] In the embodiments of this utility model, such as Figure 1 As shown, the experimental water tank includes a tank body 1 with a top opening, a first tank cover 2, a first drive structure 3, a second tank cover 4, and a second drive structure 5; one end of the first tank cover 2 is hinged to the top of the tank body 1, and the other end of the first tank cover 2 is provided with an operation port 21; both ends of the first drive structure 3 are connected to the tank body 1 and the first tank cover 2 respectively, and the first drive structure 3 is used to drive the first tank cover 2 to open and close.

[0034] The second cover 4 is slidably connected to the first cover 2. The second cover 4 is set with the operation port 21. The two ends of the second drive structure 5 are respectively connected to the second cover 4 and the first cover 2. The second drive structure 5 is used to drive the second cover 4 to open and cover the operation port 21.

[0035] The box body 1 is provided with at least one first partition 11, which divides the box body 1 into several first cavities 12 along its own length direction. The number of first box covers 2 is the same as the number of first cavities 12, and the first box covers 2 are provided in a one-to-one correspondence with the first cavities 12. Each first box cover 2 can be opened and closed independently.

[0036] In this invention, the first cover 2 has an operating port 21, and each first cover 2 corresponds to a first cavity 12. Each first cover 2 opens and closes independently. Besides the first cover 2 and the first driving structure 3, this invention also includes a second cover 4 and a second driving structure 5, with the second cover 4 slidably connected to the first cover 2. Thus, when testing large-size samples, the first driving structure 3 can drive the entire first cover 2 to open and close for testing. When testing small-size samples, only the second driving structure 5 needs to drive the second cover 4 to open the operating port 21, allowing the tester to operate through the port 21. After operation, the port 21 is covered, without needing to open the entire first cover 2. Furthermore, the opening and closing of each first cover 2 is independent; opening or closing one first cover 2 of a first cavity 12 will not affect the other first cavities 12, avoiding increasing the water-air contact area of ​​the other first cavities 12. This experimental water tank can reduce the water-air contact area, effectively reducing water temperature changes and thus improving the reliability and accuracy of experimental results. This experimental water tank allows for operation by selecting either the first cover 2 or the second cover 4 based on the sample specifications, making it suitable for samples of different sizes. The tank body 1 contains at least one first partition 11, which divides the tank body 1 along its length into several first chambers 12. This allows for the simultaneous testing of multiple samples. Testers can select different first chambers 12 based on the product specifications, test temperatures, and test times, satisfying the testing needs of multiple samples and enabling simultaneous testing of samples of different sizes. Therefore, this experimental water tank is highly adaptable and reduces power consumption due to water temperature variations. It solves the technical problem of current experimental water tanks with fixed cover sizes, which cannot effectively accommodate samples of different sizes. Furthermore, when testing small samples, the large contact area between the water surface and air leads to significant water temperature fluctuations, resulting in low reliability and accuracy of the final test results.

[0037] Optionally, the first partition 11 is evenly distributed inside the tank body 1, and each first tank cover 2 is hinged to the same side of the top of the tank body 1. This can improve the aesthetics of the experimental water tank and facilitate the testing operation.

[0038] like Figure 1 , 2 As shown in Figure 6, in one embodiment of this application, the side of the first cover 2 facing the box body 1 is provided with two oppositely arranged guide rails 22. The two guide rails 22 are correspondingly arranged with the operation port 21. The guide rails 22 extend along the driving direction of the second driving structure 5. The two ends of the second cover 4 are slidably connected to the two guide rails 22 respectively.

[0039] To ensure that the second cover 4 can slide stably along the driving direction of the second drive structure 5, two oppositely arranged guide rails 22 are provided on the side of the first cover 2 facing the box body 1, and the two guide rails 22 are correspondingly arranged with the operation port 21. The guide rails 22 can play a guiding role.

[0040] To further explain, the material of the box body 1 is 304 stainless steel, the side of the first box cover 2 and the second box cover 4 facing away from the box body 1 is made of 304 stainless steel, and the side of the first box cover 2 and the second box cover 4 close to the box body 1 is made of polystyrene foam (EPS).

[0041] The tank body 1 is made of 304 stainless steel, and the sides of the first lid 2 and the second lid 4 facing away from the tank body 1 are also made of 304 stainless steel. This gives the experimental water tank high corrosion resistance and extends its service life. Furthermore, the experimental water tank is lightweight, reducing installation costs and labor intensity. The sides of the first lid 2 and the second lid 4 closest to the tank body 1 are made of polystyrene foam (EPS). Polystyrene foam (EPS) has excellent thermal insulation properties, therefore the experimental water tank has good insulation performance, effectively reducing heat loss from the inside of the tank, minimizing water temperature fluctuations, and thus improving the accuracy of experimental results.

[0042] like Figure 2 As shown, in one embodiment of this application, the guide rail 22 is L-shaped.

[0043] The guide rail 22 is L-shaped, which makes it easier for the second cover 4 to be aligned with the guide rail 22. This facilitates the installation of the two ends of the second cover 4 in the two guide rails 22 respectively. The two ends of the second cover 4 are slidably connected to the two guide rails 22, thereby realizing the slidable connection between the second cover 4 and the operating port 21.

[0044] To further explain, the guide rail 22 includes a first connecting plate 221 and a second connecting plate 222. The first connecting plate 221 is perpendicular to the first cover 2, and the second connecting plate 222 is connected to the end of the first connecting plate 221 away from the first cover 2, and the second connecting plate 222 is perpendicular to the first connecting plate 221. At this time, the second connecting plate 222 is parallel to the first cover 2. One end of the second cover 4 slides between a second connecting plate 222 and the first cover 2, and the other end of the second cover 4 slides between another second connecting plate 222 and the first cover 2.

[0045] like Figure 1 , 3As shown in Figure 5, in one embodiment of this application, the first drive structure 3 includes a first connector 31, a first cylinder 32, and a second connector 33. One end of the first connector 31 is fixedly connected to the side of the first cover 2 facing away from the housing 1, and the other end of the first connector 31 is rotatably connected to the output end of the first cylinder 32. The end of the first cylinder 32 away from the first connector 31 is rotatably connected to one end of the second connector 33, and the other end of the second connector 33 is fixedly connected to the housing 1.

[0046] The second drive structure 5 includes a third connector 51 and a second cylinder 52. The third connector 51 is disposed on the side of the second cover 4 away from the housing 1, and the second cylinder 52 is disposed on the side of the first cover 2 away from the housing 1. The third connector 51 is fixedly connected to the output end of the second cylinder 52.

[0047] The first drive structure 3 includes a first connector 31, a first cylinder 32, and a second connector 33. The first connector 31 and the second connector 33 are configured to connect the first cover 2, the second cylinder 52, and the housing 1, thereby enabling the opening and closing of the first cover 2. The second drive structure 5 includes a third connector 51 and a second cylinder 52. The third connector 51 is configured to connect the second cover 4 and the second cylinder 52, thereby enabling the second cover 4 to open and cover the operating port 21. The first drive structure 3 and the second drive structure 5 of this utility model have a reasonable and compact structure.

[0048] To further explain, when the first cover 2 is closed, the first cylinder 32 is perpendicular to the ground and pointing upwards. When the second cover 4 needs to be opened, the driving direction of the first cylinder 32 is perpendicular to the ground and pointing downwards. At this time, the output end of the first cylinder 32 drives the first connector 31 to rotate, and the first connector 31 drives the first cover 2 to move. Since the first cover 2 will exert a certain force on the first connector 31 during the opening process, the first cylinder 32 will rotate at this time, and the connection with the box body 1 will be achieved under the connection action of the second connector 33.

[0049] Specifically, the first cylinder 32 includes a first cylinder body 321 and a first piston rod 322. The two ends of the first cylinder body 321 are respectively connected to the first piston rod 322 and the second connecting member 33, and the end of the first piston rod 322 away from the first cylinder body 321 is connected to the first connecting member 31.

[0050] Specifically, the second cylinder 52 includes a second cylinder body 521 and a second piston rod 522. The second cylinder body 521 is disposed on the side of the first cover 2 away from the housing 1, and the two ends of the second piston rod 522 are respectively connected to the third connector 51 and the second cylinder body 521.

[0051] like Figure 1As shown, in one embodiment of this application, at least one second partition 13 is detachably provided in the first cavity 12. The second partition 13 is divided into a plurality of second cavities 14 along the length direction of the first cavity 12. At least one second cavity 14 is provided corresponding to the operation port 21.

[0052] To avoid limitations on testing samples of different sizes due to the fixed internal space of the first chamber 12, and to improve the applicability of the experimental water tank, at least one second partition 13 is detachably installed inside the first chamber 12, dividing it into several second chambers 14 along its length. At least one second chamber 14 corresponds to the operating port 21. When the operating port 21 is opened, the sample can be placed in the corresponding second chamber 14 for testing. This is suitable for smaller samples, minimizing the contact area between the water surface and air, improving the reliability and accuracy of experimental results, and reducing power consumption due to water temperature changes. When testing larger samples, the second partition 13 inside the first chamber 12 can be removed, allowing for testing of larger samples in a larger space. Testers can select different second chambers 14 based on the product specifications, testing temperatures, and testing times. This significantly improves the applicability of the experimental water tank, the reliability and accuracy of experimental results, and avoids increased power consumption due to water temperature changes.

[0053] Optionally, the number of second partitions 13 is one. In this case, the first cavity 12 is divided into two second cavities 14. As long as the operation port 21 is opened, the test can be carried out in the second cavity 14 corresponding to the operation port 21.

[0054] Optionally, the inner wall of the first cavity 12 is provided with several sets of two oppositely arranged sliding grooves, each sliding groove extending along the height direction of the first cavity 12. When a small sample needs to be tested, the two ends of the second partition 13 are placed in the two oppositely arranged sliding grooves respectively, and a number of second partitions 13 are placed, so that the first cavity 12 can be divided into several second cavities 14. When a large sample needs to be tested, the second partition 13 can be removed by simply sliding it out of the sliding groove, thus realizing the detachable setting of the second partition 13.

[0055] like Figure 4 As shown, in one embodiment of this application, the experimental water tank further includes a heating element 6, and each second cavity 14 is provided with a heating element 6 at its bottom.

[0056] Since the testing of pipes involves various temperature conditions, in order to further improve the applicability of the experimental water tank, a heating element 6 is installed at the bottom of each second chamber 14. This allows the water inside each second chamber 14 to be heated independently, and different test temperatures can be easily set to meet diverse testing needs, greatly improving testing efficiency and shortening the testing cycle.

[0057] Optionally, the heating element 6 is a heating tube or a heating wire.

[0058] like Figure 1 , 3 As shown in Figure 6, in one embodiment of this application, the housing 1 has a plurality of water inlets 15 and a plurality of drain outlets 16. The water inlets 15 are connected to one end of the water inlet pipe 17, and the drain outlets 16 are connected to one end of the drain pipe 18. Each second cavity 14 is connected to at least one water inlet 15 and at least one drain outlet 16.

[0059] The housing 1 has several water inlets 15 and several drain outlets 16. The water inlets 15 are connected to one end of the water inlet pipe 17, and the drain outlets 16 are connected to one end of the drain pipe 18. Each second cavity 14 is connected to at least one water inlet 15 and at least one drain outlet 16. With this arrangement, water can be efficiently introduced or drained into the second cavity 14.

[0060] Preferably, a plurality of water inlets 15 and a plurality of water outlets 16 are provided on the bottom surface of the housing 1 (the bottom surface is the side opposite to the opening of the housing 1).

[0061] This invention can also provide water inlets 15 on the wall of the housing 1. For example, in one embodiment of this invention, the housing 1 has several water inlets 15 on the side near the first drive structure 3, allowing water to enter the first cavity 12.

[0062] In another embodiment of this utility model, along the length of the tank body 1, the inlet ends of each water inlet pipe 17 of the second cavities 14 located in the same row can be connected together by a single pipe, and the drain ends of each drain pipe 18 can also be connected together by a single pipe. This arrangement can reduce the management difficulty of the water inlet pipes 17 and the drain pipes 18, simplify the structure of the experimental water tank, and also improve the aesthetics of the experimental water tank.

[0063] Of course, the inlet 15 and outlet 16 can also be designed according to actual conditions. For example, in one embodiment of this utility model, the number of first partitions 11 is three, and the inside of the box 1 is divided into four first cavities 12. The number of second partitions 13 in each first cavity 12 is one, and each first cavity 12 is divided into two second cavities 14. The inlet 15 and outlet 16 can be set in only one of the second cavities 14, while the other second cavity 14 is not set with inlet 15 and outlet 16. When conducting small sample tests, the second cavity 14 with inlet 15 and outlet 16 is used for testing; when conducting large sample tests, the second partitions 13 are removed, and the entire first cavity 12 is used for testing.

[0064] like Figure 1 and 3 As shown, in one embodiment of this application, the experimental water tank further includes a control device 7, which is connected to the first cylinder 32, the second cylinder 52 and the heating element 6.

[0065] The control device 7 can automate the test, reduce manual intervention, improve test efficiency and accuracy, and thus ensure the reliability and accuracy of the experimental results.

[0066] Furthermore, the tester can control the operation of the first cylinder 32 and the second cylinder 52, as well as the heating operation of the heating element 6, through the control device 7. In addition, solenoid valves can be installed in the water inlet pipe 17 and the water outlet pipe 18 respectively. The solenoid valves are connected to the control device 7 to control the water inlet of the water inlet pipe 17 and the water outlet of the water outlet pipe 18.

[0067] like Figure 1 As shown, in one embodiment of this application, the control device 7 includes a console 71 and a plurality of control knobs 72. The console 71 is connected to the housing 1 and extends along the length of the housing 1. The plurality of control knobs 72 are disposed at the upper end of the console 71.

[0068] The console 71 is designed to house several control knobs 72 on the same side, thereby improving testing efficiency. Testers can control the first cylinder 32, the second cylinder 52, the water inlet pipe 17, the drain pipe 18, and the heating element 6 using the control knobs 72.

[0069] like Figure 1 and 3 As shown, in one embodiment of this application, the experimental water tank further includes a bracket 8, which is connected to the bottom end of the tank body 1.

[0070] In order to place the inlet pipe 17 and the outlet pipe 18 at the bottom of the tank 1, a bracket 8 is provided at the bottom of the tank 1 to raise the experimental water tank; in addition, the bracket 8 can also support the experimental water tank.

[0071] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. An experimental water tank, characterized in that, The package includes a box body (1) with a top opening, a first box cover (2), a first drive structure (3), a second box cover (4), and a second drive structure (5); one end of the first box cover (2) is hinged to the top of the box body (1), and the other end of the first box cover (2) is provided with an operation port (21). The two ends of the first drive structure (3) are respectively connected to the box body (1) and the first box cover (2), and the first drive structure (3) is used to drive the first box cover (2) to open and close. The second box cover (4) is slidably connected to the first box cover (2). The second box cover (4) is set in relation to the operation port (21). The two ends of the second drive structure (5) are respectively connected to the second box cover (4) and the first box cover (2). The second drive structure (5) is used to drive the second box cover (4) to open and cover the operation port (21). The box (1) is provided with at least one first partition (11), which divides the box (1) into several first cavities (12) along its own length direction. The number of first box covers (2) is the same as the number of first cavities (12), and the first box covers (2) are provided in a one-to-one correspondence with the first cavities (12). Each first box cover (2) can be opened and closed independently.

2. The experimental water tank according to claim 1, characterized in that, The first box cover (2) has two opposing guide rails (22) on the side facing the box body (1). The two guide rails (22) are corresponding to the operation port (21). The guide rails (22) extend along the driving direction of the second driving structure (5). The two ends of the second box cover (4) are slidably connected to the two guide rails (22).

3. The experimental water tank according to claim 2, characterized in that, The guide rail (22) is L-shaped.

4. The experimental water tank according to claim 1, characterized in that, The first drive structure (3) includes a first connector (31), a first cylinder (32), and a second connector (33). One end of the first connector (31) is fixedly connected to the side of the first cover (2) away from the box body (1), and the other end of the first connector (31) is rotatably connected to the output end of the first cylinder (32). The end of the first cylinder (32) away from the first connector (31) is rotatably connected to one end of the second connector (33), and the other end of the second connector (33) is fixedly connected to the box body (1). The second drive structure (5) includes a third connector (51) and a second cylinder (52). The third connector (51) is disposed on the side of the second cover (4) away from the box body (1), and the second cylinder (52) is disposed on the side of the first cover (2) away from the box body (1). The third connector (51) is fixedly connected to the output end of the second cylinder (52).

5. The experimental water tank according to claim 4, characterized in that, The first cavity (12) is detachably provided with at least one second partition (13), which is divided into several second cavities (14) along the length of the first cavity (12), and at least one second cavity (14) is provided corresponding to the operation port (21).

6. The experimental water tank according to claim 5, characterized in that, The experimental water tank also includes a heating element (6), and the heating element (6) is provided at the bottom of each of the second cavities (14).

7. The experimental water tank according to claim 6, characterized in that, The housing (1) has several water inlets (15) and several drain outlets (16). The water inlets (15) are connected to one end of the water inlet pipe (17), and the drain outlets (16) are connected to one end of the drain pipe (18). Each second cavity (14) is connected to at least one of the water inlets (15) and at least one of the drain outlets (16).

8. The experimental water tank according to claim 7, characterized in that, The experimental water tank also includes a control device (7), which is connected to the first cylinder (32), the second cylinder (52) and the heating element (6).

9. The experimental water tank according to claim 8, characterized in that, The control device (7) includes a console (71) and several control knobs (72). The console (71) is connected to the housing (1) and extends along the length of the housing (1). Several control knobs (72) are located at the upper end of the console (71).

10. The experimental water tank according to claim 9, characterized in that, The experimental water tank also includes a bracket (8), which is connected to the bottom of the tank body (1).

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