Weighing water surface evaporation test device

Abstract

The application provides a weighing type water surface evaporation testing device, and relates to the technical field of water surface evaporation devices.The device comprises an evaporation barrel inserted into the ground in a guiding mode, a supporting assembly installed in the ground and supporting the evaporation barrel, a cleaning assembly installed on the ground and capable of rotating, and a water supply assembly installed on the ground and capable of rotating.The ground is provided with a circular groove with an upward opening and allowing the evaporation barrel to be inserted up and down, and the supporting assembly is installed in the circular groove and located below the evaporation barrel.In order to meet the lifting requirement of the evaporation test, the system drives the lifting assembly to move along the vertical direction by starting the first driving motor, so as to stably lift the evaporation barrel.In the lifting process of the evaporation barrel, the matched expansion and contraction assembly is synchronously expanded, the inner diameter of the support is expanded, a wider bearing surface is formed, and the stability and safety of the evaporation barrel at the high position are effectively enhanced.

Description

Technical Field

[0001] This invention relates to the field of water surface evaporation device technology, specifically a weighing-type water surface evaporation testing device. Background Technology

[0002] An evaporator is an instrument used to observe the amount of water evaporation. It mainly consists of an evaporation tank, a water ring, an overflow tank, and a measuring device. This instrument is characterized by its corrosion resistance, freeze-thaw resistance, and good thermal insulation, and its measurement accuracy can reach 0.1 mm. It is widely used in hydrology, meteorology, and other fields. During installation, ensure that the rim of the evaporation tank is 30 cm above the ground. When using it outside of ice-covered periods, the water needs to be changed regularly and the overflow rate monitored. Change the water monthly; before heavy rain, additional evaporation measurements should be taken and the overflow device checked.

[0003] Patent publication number CN116299770A discloses a water surface evaporation measuring device and its measuring method. The device includes: an evaporation tank with an open top; a support tube located inside the evaporation tank with an open bottom, the support tube being fixedly connected to the inner wall of the evaporation tank via a support rod, and a measuring height existing between the bottom of the support tube and the bottom of the evaporation tank; a laser rangefinder sensor placed inside the support tube for measuring the water level height inside the evaporation tank, the measuring range of the laser rangefinder sensor including the measuring height; a piezoelectric sensor located at the top of the support tube, higher than or flush with the upper surface of the evaporation tank, for collecting rainfall data; and a controller connected to both the laser rangefinder sensor and the piezoelectric sensor, obtaining water surface evaporation data based on the data sent by the laser rangefinder sensor and the piezoelectric sensor. This invention enables precise monitoring of the entire process of water surface evaporation data. Patent publication number CN207540925U discloses a fully automatic weighing evaporation testing system based on the E601 evaporator. This invention discloses a fully automatic weighing evaporation testing system based on the E601 evaporator, including an E601 water surface evaporator and an evaporation testing device. The evaporation testing device includes a test bucket, a connecting pipe, a mounting base, a push rod, a support frame, a weight sensor, and a crossbeam. The test bucket and the E601 water surface evaporator are located on the same horizontal plane and are connected through the connecting pipe. The upper end of the mounting base is connected to the lower end of the push rod, and the upper end of the push rod is connected to the support frame. The top of the test bucket is connected to the crossbeam, and the crossbeam is connected to the support frame through the weight sensor. This invention adopts the principle of communicating vessels and the principle of weight-volume conversion. By testing the weight change inside the evaporation bucket, it calculates the evaporation amount that meets hydrological specifications. The test data is accurate and consistent, and can completely replace manual testing methods.

[0004] While the aforementioned patents can improve the accuracy of water surface evaporation measurements, they also have the following drawbacks: Currently used water surface evaporation devices are typically installed below ground level, relying on telescopic rods for support. However, when the evaporation tank is raised to the working height, the overall structural stability decreases significantly, making it prone to swaying and affecting the accuracy of evaporation measurement. Furthermore, the internal cleaning of the evaporation tank currently relies mainly on manual labor, resulting in low cleaning efficiency and increasing maintenance difficulty and workload. Summary of the Invention

[0005] The purpose of this invention is to provide a weighing-type water surface evaporation testing device, which aims to solve the problem of poor stability and inaccurate measurement caused by the evaporation tank being located at a high position in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: the weighing water surface evaporation test device includes an evaporation bucket that is guided and slidably installed in the ground, a support component installed below the ground and supporting the evaporation bucket, a cleaning component installed on the ground and capable of rotation, and a water supply component installed on the ground and capable of rotation.

[0007] The ground has an upward-facing circular groove for inserting the evaporation tank vertically. The support assembly is installed in the circular groove and is located below the evaporation tank.

[0008] The support assembly includes a first drive motor fixed on the bottom wall of the circular groove, a shrinking and expanding assembly, a plurality of lifting assemblies arranged in a circular array, and a plurality of support plates arranged in a circular array. The bottom of the evaporation tank is provided with a concave limiting groove for guiding and sliding the support plates. The output shaft of the first drive motor is connected to the shrinking and expanding assembly and the lifting assembly in a transmission connection. The support plates are hinged to the lifting assemblies.

[0009] A convex ring is fixed on the inner wall of the circular groove, and several weighing sensors arranged in a circular array are installed on the convex ring.

[0010] Preferably, the retracting and expanding assembly includes a rotating disk, a fixed guide plate, a guide sliding rod, a retracting and expanding plate, and a limiting post;

[0011] The bottom of the fixed guide plate is fixed to the inner bottom wall of the circular groove by a support column;

[0012] The output shaft of the first drive motor passes through the fixed guide plate and is fixedly connected to the rotating disk. The rotating disk has a plurality of arc-shaped holes arranged in a circular array and open from top to bottom.

[0013] The expansion plate is fixedly connected to the peripheral side of the guide sliding rod, and the top of the guide sliding rod away from the expansion plate is fixedly connected to the limiting post. The limiting post guides and slides within the arc-shaped hole.

[0014] The guide sliding rod slides on the fixed guide plate;

[0015] The lifting assembly is mounted on the expansion plate.

[0016] Preferably, the fixed guide plate includes a circular plate, a plurality of long plates fixed at intervals on the circumferential side of the circular plate in a circular array, and a guide groove formed on the long plates for the guide sliding rod to slide.

[0017] Preferably, each of the lifting components includes a first bevel gear, a second bevel gear set, a transmission rod, a lead screw, a guide rod, and a lifting plate;

[0018] The rotating disk has a polygonal support cover through which the transmission rod passes;

[0019] The output shaft of the first drive motor is fixed with a total bevel gear. The end of the transmission rod near the total bevel gear is fixedly connected to the first bevel gear. The first bevel gear and the total bevel gear mesh with each other. The end of the transmission rod away from the first bevel gear is connected to the lead screw through a second bevel gear set.

[0020] Both the lead screw and the guide rod are arranged in the vertical direction, and the lead screw rotates on the expansion plate. There are two guide rods distributed on both sides of the lead screw and the guide rods are fixed on the expansion plate.

[0021] The lifting plate is mounted on the lead screw and the guide rod, and the lifting plate is threadedly connected to the lead screw so that the lifting plate can move along the extension direction of the guide rod. The lifting plate is hinged to the top of the lifting plate near the inner side.

[0022] Preferably, the circular groove is provided with a plurality of auxiliary support components arranged in a circular array, and the top of the auxiliary support components is fixedly connected to the bottom of the expansion plate.

[0023] The inner bottom wall of the circular groove is provided with a number of sliding grooves arranged in a circular array with their openings facing upwards, and the auxiliary support component is guided and slid within the sliding grooves.

[0024] Preferably, each of the auxiliary support components includes a Z-shaped plate and a multi-section telescopic assembly;

[0025] The multi-section telescopic assembly is fixed in the sliding groove. The movable end of the multi-section telescopic assembly is fixedly connected to the Z-shaped plate. The end of the Z-shaped plate away from the multi-section telescopic assembly is fixedly connected to the bottom of the retractable plate.

[0026] Preferably, an infrared sensor is installed on the inner wall of the circular groove, and the infrared sensor is connected to the cleaning component and the water supply component via a controller.

[0027] Preferably, a column extending vertically is fixed on the ground, and a chamber is provided inside the column, and the cleaning component is installed inside the chamber;

[0028] The cleaning assembly includes a second drive motor fixed in the chamber, a rotating plate fixedly connected to the output shaft of the second drive motor, a third drive motor fixed to the bottom of the rotating plate, a disc fixedly connected to the output shaft of the third drive motor, a telescopic component extending in the vertical direction and eccentrically fixed to the bottom of the disc, and a brush installed at the bottom of the movable section of the telescopic component.

[0029] Preferably, the convex ring has a cavity inside, and the convex ring is provided with a plurality of circumferentially arrayed lifting blocks that can move up and down, and the weighing sensor is installed on the lifting blocks;

[0030] An adjustment component is provided inside the cavity, and the adjustment component is threadedly connected to the lifting block.

[0031] Preferably, a circular water ring is fixed on the ground, and the water ring is located on the outside of the evaporation tank;

[0032] A circular anti-collapse wall is fixed on the ground, and the anti-collapse wall is located outside the water ring.

[0033] The beneficial effects are: 1. To meet the lifting requirements of evaporation testing, the system starts the first drive motor, which drives the lifting component to move vertically, thereby smoothly lifting the evaporation tank. During the ascent of the evaporation tank, the matching expansion and contraction components unfold simultaneously, expanding the inner diameter of the support and forming a wider bearing surface, effectively enhancing the stability and safety of the evaporation tank at high positions.

[0034] 2. As the expansion and contraction components extend or retract, they move in tandem with the auxiliary support components, providing rigid reinforcement. This effectively eliminates the potential instability of the expansion and contraction components in the extended state. Through their synergistic effect, the supporting rigidity of the evaporation tank is significantly enhanced, thus providing a solid guarantee for the accuracy of the test data.

[0035] 3. The evaporation tank moves along the circular groove in three stages. The first stage is the bottom layer, where the evaporation tank is placed on a weighing sensor to measure and record the evaporation tank and the amount of water inside. The second stage is the test layer, where the evaporation tank is raised to carry out evaporation tests. The third stage is the cleaning layer, where an infrared sensor is triggered when the evaporation tank reaches its highest point, causing the water supply component to move away from the top of the evaporation tank and the cleaning component to move to the top of the evaporation tank. The cleaning component then cleans the inside of the evaporation tank. Through these three stages, the functionality of this application is diversified.

[0036] 4. The start of the fourth drive motor can drive the sprocket to rotate. When the sprocket rotates, it can drive the corresponding screw to rotate. Since all the screws are divided into two parts, one part of the screw has a positive groove and the other part has a negative groove, the rotation of the sprocket will drive the corresponding lifting block to move up and down, so that the load cells can be used alternately, avoiding damage to the load cells due to prolonged use. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the water supply component of the present invention located above the evaporation tank;

[0038] Figure 2 This is a schematic diagram of the cleaning component of the present invention located above the evaporation tank;

[0039] Figure 3 This is a partial cross-sectional structural schematic diagram of the circular groove on the ground according to the present invention;

[0040] Figure 4 In this invention Figure 3 A magnified structural diagram at point A;

[0041] Figure 5 This is a three-dimensional structural diagram of the support component of the present invention;

[0042] Figure 6 In this invention Figure 5 A magnified structural diagram at point B;

[0043] Figure 7 This is a partial cross-sectional structural schematic diagram of the column of the present invention;

[0044] Figure 8 This is a schematic diagram of the evaporator barrel of the present invention inserted into a circular groove;

[0045] Figure 9 This is a schematic diagram of the auxiliary support component of the present invention;

[0046] Figure 10 This is a schematic diagram of the structure of the lifting plate supporting the evaporation tank according to the present invention;

[0047] Figure 11 This is a partial cross-sectional structural schematic diagram of the convex ring of the present invention;

[0048] Figure 12 In this invention Figure 11 A magnified structural diagram at point C.

[0049] In the diagram: 1. Ground; 2. Evaporation tank; 3. Cleaning assembly; 301. Second drive motor; 302. Rotating plate; 303. Third drive motor; 304. Disc; 305. Telescopic component; 306. Brush; 4. Water supply assembly; 5. Circular trough; 6. Expansion / retraction assembly; 601. Rotating disc; 602. Guide sliding rod; 603. Expansion / retraction plate; 604. Limiting post; 7. Lifting assembly; 701. First bevel gear; 702. Second bevel gear set; 703. Transmission rod; 704. Lead screw; 705. Smooth rod; 706. Lifting plate; 8. Lifting plate; 9. Concave limiting post. 10. Groove; 11. First drive motor; 12. Infrared sensor; 13. Support column; 14. Arc-shaped hole; 15. Long plate; 16. Guide groove; 17. Convex ring; 18. Weighing sensor; 19. Auxiliary support assembly; 1901. Z-shaped plate; 1902. Multi-section telescopic assembly; 20. Sliding groove; 21. Column; 22. Chamber; 23. Hollow cavity; 24. Lifting block; 25. Adjustment assembly; 2501. Screw; 2502. Fourth drive motor; 2503. Sprocket; 26. Water ring; 27. Anti-collapse wall; 28. Main bevel gear; 29. ​​Support buckle cover; 30. Chain. Detailed Implementation

[0050] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0051] Example 1 describes a weighing-type water surface evaporation testing device, primarily used to better support the evaporation tank 2 during water surface evaporation testing. The device includes a support assembly that can adaptively adjust its inner diameter according to the height of the evaporation tank 2. This ensures a larger support range when the evaporation tank 2 is at a higher position and a smaller support range when it is at a lower position, thus improving the support effect on the evaporation tank 2 and consequently increasing the accuracy of the water surface evaporation test.

[0052] In this embodiment, the weighing-type water surface evaporation testing device also includes an evaporation tank 2 that is guided and slidably installed in the ground 1 and a water supply component 4 that is installed on the ground 1 and can rotate. The ground 1 has a circular groove 5 with an upward opening for the evaporation tank 2 to be inserted vertically. A support component is installed in the circular groove 5 and is located below the evaporation tank 2 to support the evaporation tank 2. A convex ring 17 is fixed on the inner wall of the circular groove 5. Several weighing sensors 18 arranged in a circular array are installed on the convex ring 17 so that when the evaporation tank 2 is lowered to the lowest point, the weighing sensors 18 can weigh the evaporation tank 2. A circular water ring 26 is fixed on the ground 1 and is located outside the evaporation tank 2. A circular anti-collapse wall 27 is fixed on the ground 1 and is located outside the water ring 26.

[0053] In this embodiment, the weighing sensor 18 measures the weight of the evaporation tank 2 and transmits the data to the display screen through the controller. The structure and principle of the weighing sensor 18, the controller and the display screen are existing technologies and will not be described in detail here.

[0054] like Figure 1 , Figures 3-6 and Figure 10 As shown, the support assembly includes a first drive motor 10 fixed on the bottom wall of the circular groove 5, a retractable assembly 6, a plurality of lifting assemblies 7 arranged in a circular array, and a plurality of support plates 8 arranged in a circular array. The bottom of the evaporation tank 2 is provided with a concave limiting groove 9 for guiding the sliding of the support plates 8. The output shaft of the first drive motor 10 is connected to the retractable assembly 6 and the lifting assembly 7 respectively, so that while the lifting assembly 7 is raised or lowered, the retractable assembly 6 can also be expanded or contracted.

[0055] The lifting plate 8 is hinged to the lifting assembly 7, so that when the lifting assembly 7 is raised or lowered, it can drive the lifting plate 8 to slide along the concave limiting groove 9. When the evaporator 2 is at its lowest position, the lifting plate 8 is lifted at the bottom of the evaporator 2 with its minimum inner diameter, and when the evaporator 2 is at its highest position, the lifting plate 8 is lifted at the bottom of the evaporator 2 with its maximum inner diameter.

[0056] Specifically, the expansion and retraction assembly 6 includes a rotating disk 601, a fixed guide plate, a guide sliding rod 602, an expansion and retraction plate 603, and a limiting post 604; the bottom of the fixed guide plate is fixed to the inner bottom wall of the circular groove 5 by a support post 12; the output shaft of the first drive motor 10 passes through the fixed guide plate and is fixedly connected to the rotating disk 601; the rotating disk 601 has several circular arrays of arc-shaped holes 13 that are open from top to bottom; the expansion and retraction plate 603 is fixedly connected to the peripheral side of the guide sliding rod 602, and the guide sliding rod 602 is away from the top of the expansion and retraction plate 603. The part is fixedly connected to the limiting post 604, and the limiting post 604 slides within the arc-shaped hole 13; the guide sliding rod 602 can slide radially relative to the fixed guide plate; the lifting assembly 7 is installed on the expansion plate 603, and at the same time, the output shaft of the first drive motor 10 can also drive the rotating disk 601 to rotate. When the rotating disk 601 rotates, it will cause the limiting post 604 to move along the extension direction of the arc-shaped hole 13, thereby driving the guide sliding rod 602 to move radially along the fixed guide plate, so as to realize the expansion or contraction of the expansion plate 603.

[0057] In other embodiments, the output end of the first drive motor 10 may be fixedly connected to the eighth gear, and the eighth gear may mesh with the rotating disk 601 (the rotating disk 601 is a gear disk). The rotating disk 601 is fixed on the rotating shaft, and the rotating shaft rotates on the bottom wall of the circular groove 5, so that the rotating disk 601 and the rotating shaft rotate synchronously.

[0058] The fixed guide plate includes a circular plate, several long plates 15 fixed at intervals on the circumferential side of the circular plate in a circular array, and a guide groove 16 opened on the long plate 15 for the guide sliding rod 602 to slide. The guide sliding rod 602 moves along the guide groove 16 on the long plate 15 during the process of moving along the extension direction of the fixed guide plate.

[0059] Each lifting assembly 7 includes a first bevel gear 701, a second bevel gear set 702, a transmission rod 703, a lead screw 704, a guide rod 705, and a lifting plate 706. In this embodiment, the transmission rod 703 is a spline telescopic sleeve rod, that is, the spline telescopic sleeve rod includes an outer spline shaft and an inner spline sleeve. The outer spline shaft is inserted into the inner spline sleeve, and the spline teeth of the two mesh with each other to form the spline telescopic sleeve rod. The outer spline shaft and the inner spline sleeve rod are tightly meshed in the circumferential direction and cannot move relative to each other, but in the axial direction, the outer spline shaft can extend and retract axially relative to the inner spline sleeve. In this embodiment, the structure and principle of the spline telescopic sleeve rod are existing technologies and will not be described in detail here. When the expansion and contraction plate 603 retracts or extends, the spline telescopic sleeve rod can extend or retract, thereby adjusting the length of the transmission rod 703 according to the change of the expansion and contraction plate 603. A polygonal support cover 29, through which the transmission rod 703 passes, rotates on the rotating disk 601. In this embodiment, a connecting rod (not shown in the figure) is fixedly connected to the outer side of the support cover 29. The end of the connecting rod away from the support cover 29 is fixedly connected to the inner wall of the circular groove 5 to ensure that the support cover 29 does not rotate. The output shaft of the first drive motor 10 is fixedly connected to a total bevel gear 28. In other embodiments, the total bevel gear 28 is fixed to a rotating shaft. When the first drive motor 10 starts, the output shaft of the first drive motor 10 can drive the total bevel gear 28 to rotate. Since the end of the transmission rod 703 near the total bevel gear 28 is fixedly connected to the first bevel gear 701, and the first bevel gear 701 meshes with the total bevel gear 28, when the total bevel gear 28 rotates, it can drive the transmission rod through the first bevel gear 701. When rod 703 rotates, the end of rod 703 away from the first bevel gear 701 is connected to lead screw 704 via second bevel gear set 702. Rod 703 can drive lead screw 704 to rotate via second bevel gear set 702. In this embodiment, second bevel gear set 702 includes a second main bevel gear and a second driven bevel gear. The second main bevel gear is fixed to the end of rod 703 away from the first bevel gear 701, and the second driven bevel gear is fixed to lead screw 704. The gears mesh with each other. The lead screw 704 and the guide rod 705 are both arranged in the vertical direction. The lead screw 704 rotates on the expansion plate 603. There are two guide rods 705 distributed on both sides of the lead screw 704 and the guide rods 705 are fixed on the expansion plate 603. The lifting plate 706 is fitted on the lead screw 704 and the guide rod 705 and is threadedly connected to the lead screw 704 so that the lifting plate 706 can move along the extension direction of the guide rod 705. The lifting plate 8 is hinged to the top of the lifting plate 706 near the inner side.

[0060] like Figure 1 and Figure 3 As shown, the water supply component 4 can automatically add water to the evaporation tank 2 to enable the circulating water surface to evaporate during the test.

[0061] Specifically, the water supply component 4 includes a support column fixed on the ground 1, a rotating bracket on the top of the support column, a water tank fixed in the ground 1, and a water pump installed in the water tank. The output shaft of the water pump is connected to a water pipe, which passes through the rotating bracket. Since a sixth drive motor is fixed inside the support column, the output shaft of the sixth drive motor is started, which can drive the rotating bracket to rotate so that the nozzle at the end of the water pipe away from the water pump is away from the evaporation tank 2. When water needs to be added, it rotates back to the top of the evaporation tank 2. This does not affect the evaporation test and can automatically replenish water, thus improving the water replenishment efficiency.

[0062] Working principle: When the evaporation tank 2 is at the bottom, its bottom contacts the weighing sensor 18. Then, under the action of the sixth drive motor, the water pipe rotates to the top of the evaporation tank 2, adding water to its interior. The weighing sensor 18 weighs the evaporation tank 2 and the amount of water inside, and the data is fed back to the display screen via the controller. After the water addition is complete, the first drive motor 10 starts. The output shaft of the first drive motor 10 drives the total bevel gear 28 to rotate. This rotation of the total bevel gear 28, in turn, drives the transmission rod 703 to rotate via the first bevel gear 701. The moving rod 703 can drive the lead screw 704 to rotate through the second bevel gear set 702, so that the lifting plate 706 and the supporting plate 8 lift the evaporator 2. At the same time, the output shaft of the first drive motor 10 can also drive the rotating disk 601 to rotate. When the rotating disk 601 rotates, it will cause the limiting post 604 to move along the extension direction of the arc hole 13, which in turn drives the guide sliding rod 602 to move along the extension direction of the guide groove 16 on the long plate 15, realizing expansion or contraction. When the evaporator 2 rises, the expansion and contraction plate 603 expands; when the evaporator 2 falls, the expansion and contraction plate 603 contracts, which improves the support stability of the evaporator 2.

[0063] In Example 2, in the structure of Example 1, since the evaporator 2 is currently cleaned manually, the cleaning efficiency is low, and the evaporator 2 is relatively deep, making manual cleaning cumbersome.

[0064] Based on the above problems, this implementation example Figures 1-3 and Figure 7 As shown, the cleaning component 3 is installed on the ground 1, and an infrared sensor 11 is installed on the inner wall of the circular groove 5. The infrared sensor 11 is connected to the cleaning component 3 and the water supply component 4 through the controller. When the infrared sensor 11 detects that the evaporation tank 2 has risen to the highest position, the cleaning component 3 moves to the top of the evaporation tank 2, and the water supply component 4 moves away from the top of the evaporation tank 2, so that the cleaning component 3 can clean the inside of the evaporation tank 2.

[0065] In this embodiment, the structure and principle of the infrared sensor 11 and the controller are existing technologies and will not be described in detail here.

[0066] A column 21 extending vertically is fixed on the ground 1. A chamber 22 is provided inside the column 21, and a cleaning assembly 3 is installed inside the chamber 22. The cleaning assembly 3 includes a second drive motor 301 fixed inside the chamber 22, a rotating plate 302 fixedly connected to the output shaft of the second drive motor 301, a third drive motor 303 fixed to the bottom of the rotating plate 302, a disc 304 fixedly connected to the output shaft of the third drive motor 303, a telescopic member 305 extending vertically and eccentrically fixed to the bottom of the disc 304, and a brush 306 installed at the bottom of the movable section of the telescopic member 305. When the evaporation tank 2 is raised to its highest position, the rotating plate 302 rotates to the top of the evaporation tank 2 under the action of the second drive motor 301. Then, the brush 306 extends into the evaporation tank 2 under the action of the telescopic member 305. Since the third drive motor 303 is eccentrically set, the third drive motor 303 starts and can drive the disc 304 to rotate, thereby enabling the brush 306 to clean the inner wall of the evaporation tank 2.

[0067] In this embodiment, the telescopic component 305 is an electric telescopic rod. The structure and principle of the electric telescopic rod are existing technologies and will not be described in detail here. A storage battery is installed inside the disc 304, and the storage battery is electrically connected to the electric telescopic rod to avoid the problem of wire tangling.

[0068] Compared to Embodiment 1, the advantage of this embodiment is that when the evaporation tank 2 rises to its highest position, the infrared sensor 11 is triggered. Then, the water supply component 4 moves away from the top of the evaporation tank 2, while the cleaning component 3 moves to the top of the evaporation tank 2. The cleaning component 3 can then clean the inside of the evaporation tank 2 without the need for manual cleaning, thus improving cleaning efficiency.

[0069] In Embodiment 3, the structures of Embodiment 1 and Embodiment 2 are such that the expansion plate 603 becomes unstable during long-term expansion, which can easily cause the expansion plate 603 to break and has a short service life.

[0070] Based on the above problems, in this embodiment as follows Figure 3 , Figure 8 and Figure 9 As shown, a plurality of auxiliary support components 19 arranged in a circular array are provided in the circular groove 5. The top of the auxiliary support components 19 is fixedly connected to the bottom of the expansion plate 603. A plurality of sliding grooves 20 arranged in a circular array with their openings facing upward are provided on the inner bottom wall of the circular groove 5. The auxiliary support components 19 are guided to slide in the sliding grooves 20 so that when the expansion plate 603 is contracted or expanded, the auxiliary support components 19 can move along the extension direction of the sliding grooves 20.

[0071] Each auxiliary support component 19 includes a Z-shaped plate 1901 and a multi-section telescopic component 1902. In this embodiment, the multi-section telescopic component 1902 adopts a multi-section electric telescopic rod or a multi-section hydraulic telescopic rod. The structure and principle of the multi-section electric telescopic rod or the multi-section hydraulic telescopic rod are existing technologies and will not be described in detail here. The multi-section telescopic component 1902 is fixed in the sliding groove 20. The movable end of the multi-section telescopic component 1902 is fixedly connected to the Z-shaped plate 1901. The end of the Z-shaped plate 1901 away from the multi-section telescopic component 1902 is fixedly connected to the bottom of the expansion plate 603.

[0072] Compared to Embodiments 1 and 2, this embodiment can provide auxiliary support for the expansion plate 603, thereby extending the service life of the expansion plate 603.

[0073] In Example 4, the structures of Example 1, Example 2 and Example 3, the weighing sensor 18 will experience elastic fatigue after long-term use, which can easily cause damage to the weighing sensor 18.

[0074] Based on the above problems, in this embodiment as follows Figure 3 , Figure 11 and Figure 12 As shown, the inside of the convex ring 17 is provided with a cavity 23, and a number of circumferential array lifting blocks 24 that can be raised and lowered are provided on the convex ring 17. The load cell 18 is installed on the lifting block 24. An adjustment component 25 is provided in the cavity 23. The adjustment component 25 is threadedly connected to the lifting block 24 so that the lifting block 24 is raised alternately to be flush with the convex ring 17, so that the load cell 18 can be used alternately.

[0075] In this embodiment, the adjustment component 25 includes a plurality of screws 2501 arranged in a circular array, a fourth drive motor 2502, and a plurality of sprockets 2503 arranged in a circular array. The fourth drive motor 2502 is installed in the cavity 23, and the output shaft of the fourth drive motor 2502 is fixedly connected to one of the screws 2501. Each sprocket 2503 is fixedly connected to the corresponding screw 2501. A chain 30 is driven to the outside of the sprocket 2503 to make the screws 2501 rotate. Since some of the screws 2501 have positive grooves and others have negative grooves, the rotation of the screws 2501 will drive the corresponding lifting blocks 24 to move up and down, so that the weighing sensors 18 can be used alternately, avoiding damage to the weighing sensors 18 due to prolonged use.

[0076] Compared to Embodiments 1, 2, and 3, the advantage of this embodiment is that the weighing sensors 18 can be used alternately, avoiding damage to the weighing sensors 18 due to prolonged use.

[0077] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. The basic concept of the present invention is to improve the support effect by adjusting the inner diameter range of the support of the evaporation tank 2 according to the height of the evaporation tank 2, and the evaporation tank 2 can be cleaned under the action of the cleaning component 3, reducing the labor intensity of workers. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A gravimetric water surface evaporation test apparatus, characterized by, The utility model provides an evaporating barrel (2) is slidably installed in ground (1) under the guidance, support assembly is installed below ground (1) and supports evaporating barrel (2), cleaning assembly (3) can be rotated and is installed on ground (1) and water supply assembly (4) can be rotated and is installed on ground, The ground (1) is provided with a circular groove (5) with an upward opening and for the insertion of the evaporating barrel (2) up and down, and the support assembly is installed in the circular groove (5) and located below the evaporating barrel (2); The support assembly comprises a first driving motor (10) fixed to the bottom wall of the circular groove (5), a retractable assembly (6), a plurality of lifting assemblies (7) arranged in a circumferential array and a plurality of lifting plates (8) arranged in a circumferential array, the bottom of the evaporating barrel (2) is provided with a concave limiting groove (9) for the sliding guidance of the lifting plates (8), the output shaft of the first driving motor (10) is in transmission connection with the retractable assembly (6) and the lifting assemblies (7) respectively, and the lifting plates (8) are hingedly connected to the lifting assemblies (7); The retractable assembly (6) comprises a rotating disc (601), a fixed guide plate, a guide sliding rod (602), a retractable plate (603) and a limiting column (604); The bottom of the fixed guide plate is fixed to the inner bottom wall of the circular groove (5) through a support column (12); The output shaft of the first driving motor (10) is fixedly connected with the rotating disc (601) through the fixed guide plate, and a plurality of arc-shaped holes (13) penetrating through the rotating disc (601) are arranged in a circumferential array on the rotating disc (601); The retractable plate (603) is fixedly connected with the circumferential side of the guide sliding rod (602), the top of the guide sliding rod (602) away from the retractable plate (603) is fixedly connected with the limiting column (604), and the limiting column (604) is slidably guided in the arc-shaped hole (13); The guide sliding rod (602) can slide in the radial direction of the fixed guide plate relative to the fixed guide plate; The lifting assemblies (7) are installed on the retractable plate (603); The fixed guide plate comprises a circular plate, a plurality of long plates (15) arranged in a circumferential array and fixed to the circumferential side of the circular plate at intervals and a guide groove (16) provided on the long plate (15) and for the sliding guidance of the guide sliding rod (602); Each lifting assembly (7) comprises a first bevel gear (701), a second bevel gear set (702), a transmission rod (703), a lead screw (704), a light rod (705) and a lifting plate (706); The rotating disc (601) is rotatably provided with a support cover (29) penetrating through the transmission rod (703) and in a polygonal shape, and the support cover (29) is fixedly connected with the inner wall of the circular groove (5) through a connecting rod; The output shaft of the first driving motor (10) is fixedly provided with a total bevel gear (28), one end of the transmission rod (703) close to the total bevel gear (28) is fixedly connected with the first bevel gear (701), the first bevel gear (701) is in meshing connection with the total bevel gear (28), and one end of the transmission rod (703) away from the first bevel gear (701) is in transmission connection with the lead screw (704) through the second bevel gear set (702). The transmission rod (703) is a spline telescopic sleeve rod; The lead screw (704) and the light rod (705) are arranged in the up-down direction, the lead screw (704) rotates on the expansion plate (603), and the light rod (705) is distributed on both sides of the lead screw (704) and is fixed on the expansion plate (603); The lifting plate (706) is sleeved on the lead screw (704) and the light rod (705), and the lifting plate (706) is threadedly connected with the lead screw (704), so that the lifting plate (706) moves along the extension direction of the light rod (705), and the lifting plate (706) is hingedly connected to the top of the inner side of the lifting plate (706). A convex ring (17) is fixed on the inner wall of the circular groove (5), and a plurality of weighing sensors (18) are arranged in a circumferential array on the convex ring (17); The convex ring (17) is provided with a cavity (23) in the inside, a plurality of lifting blocks (24) capable of lifting up and down are arranged in a circumferential array on the convex ring (17), and the weighing sensors (18) are installed on the lifting blocks (24). The cavity (23) is provided with an adjusting assembly (25), and the adjusting assembly (25) is threadedly connected with the lifting block (24). An infrared sensor (11) is installed on the inner wall of the circular groove (5), and the infrared sensor (11) is signal connected with the cleaning assembly (3) and the water supply assembly (4) through the controller.

2. The weighed water surface evaporation test device according to claim 1, characterized in that, A plurality of auxiliary supporting assemblies (19) are arranged in a circumferential array in the circular groove (5), and the top of the auxiliary supporting assembly (19) is fixedly connected with the bottom of the expansion plate (603). The inner bottom wall of the circular groove (5) is provided with a plurality of sliding grooves (20) arranged in a circumferential array and opening upward, and the auxiliary supporting assembly (19) is guided to slide in the sliding groove (20).

3. The weighed water surface evaporation test device according to claim 2, characterized in that, Each auxiliary supporting assembly (19) comprises a Z-shaped plate (1901) and a multi-section telescopic assembly (1902). The multi-section telescopic assembly (1902) is fixed in the sliding groove (20), the movable end of the multi-section telescopic assembly (1902) is fixedly connected with the Z-shaped plate (1901), and the end of the Z-shaped plate (1901) away from the multi-section telescopic assembly (1902) is fixedly connected with the bottom of the expansion plate (603).

4. The weighed water surface evaporation test device according to claim 1, characterized in that, The ground (1) is fixed with a stand (21) extending in the up-down direction, the stand (21) is provided with a cavity (22), and the cleaning assembly (3) is installed in the cavity (22); The cleaning assembly (3) comprises a second driving motor (301) fixed in the cavity (22), a rotating plate (302) fixedly connected with the output shaft of the second driving motor (301), a third driving motor (303) fixed on the bottom of the rotating plate (302), a disc (304) fixedly connected with the output shaft of the third driving motor (303), a telescopic member (305) extending in the up-down direction and eccentrically fixed on the bottom of the disc (304), and a brush (306) installed on the bottom of the movable section of the telescopic member (305).

5. The weighed water surface evaporation test device according to claim 1, characterized in that, A circular water ring (26) is fixed on the ground (1), and the water ring (26) is located on the outside of the evaporation tank (2); A circular anti-collapse wall (27) is fixed on the ground (1), and the anti-collapse wall (27) is located outside the water ring (26).

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