Follow-up liquid level automatic control device

Abstract

The utility model relates to the technical field of fluid control, and discloses a follow-up liquid level automatic control device which comprises a support, a first water tank is arranged on one side of the support, a second water tank is arranged on the other side of the support, a control box is arranged on the top of the support, and an installation assembly is arranged on the inner wall of the first water tank. The follow-up liquid level automatic control device is provided with a mounting shell, a sliding groove, a through groove, a mounting groove, a floating block and a laser range finder, when a first water tank serves as a target water tank, the floating block in the first water tank slides along the sliding groove along with the liquid level, and the laser range finder detects the position of the floating block in real time and transmits data to a control box; meanwhile, the laser range finder of the second water tank feeds liquid level information back to the control box, and the control box drives an electric control water inlet valve and an electric control drain valve of the second water tank to work after contrastive analysis, so that the liquid level of the second water tank quickly changes along with the first water tank.

Description

Technical Field

[0001] This utility model relates to the field of fluid control technology, specifically a follow-up automatic liquid level control device. Background Technology

[0002] Precise control of liquid level is crucial in many fields such as industrial production, laboratory research, and agricultural irrigation. As application scenarios become more complex, higher demands are placed on the dynamic response capability and automation level of liquid level control devices.

[0003] Traditional liquid level control devices mostly employ fixed threshold control, which involves pre-setting a fixed liquid level height and triggering liquid inflow or outflow actions when the actual liquid level reaches that threshold to maintain liquid level stability. However, in many practical scenarios, the control benchmark for the liquid level is not a fixed value but needs to be adjusted in real time to follow another dynamically changing target liquid level. For example, in chemical production, the liquid levels of two reactors connected in series need to maintain synchronous fluctuations to ensure material reaction efficiency; in hydrological simulation experiments, the controlled water body needs to simulate the tidal changes of natural water bodies in real time. In these cases, traditional fixed threshold control devices are difficult to meet the requirements of dynamic following.

[0004] The prior art patent document CN208979573U provides a floating liquid level control device. This device achieves up and down movement by rotating a floating screw at the lower end of a telescopic rod on the upper end of a floating threaded column, and uses a stable elastic body to ensure the stability of the connection, thereby realizing the up and down extension and retraction adjustment of the telescopic rod and improving the flexibility of use.

[0005] The aforementioned existing technologies are mainly for fixed height adjustment of a single liquid level. They do not have the ability to follow up with the external dynamic liquid level as a reference, and cannot achieve real-time synchronous following of the liquid level between two or more containers. When faced with changes in the liquid level, the dynamic response speed is slow and prone to lag, resulting in a large deviation in liquid level control. Therefore, we need a follow-up automatic liquid level control device. Utility Model Content

[0006] The purpose of this invention is to provide a follow-up automatic liquid level control device to solve the problem mentioned in the background art of the inability to achieve real-time synchronous following of liquid levels between two or more containers.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a follow-up automatic liquid level control device, including a bracket, a first water tank is provided on one side of the bracket, and a second water tank is provided on the other side of the bracket, a control box is provided on the top of the bracket, and an installation component is provided on the inner wall of the first water tank.

[0008] The mounting assembly includes a mounting housing, the inner wall of which is provided with a sliding groove, one side of which is provided with a through groove, and the top of which is provided with a mounting groove. A float is slidably connected to the inner wall of the sliding groove, and a fixing assembly is provided on the top of the mounting housing.

[0009] The fixing assembly includes a mounting plate, and a laser rangefinder is fixedly mounted on the bottom of the mounting plate. The inner wall of the mounting plate has a positioning hole, and one side of the mounting plate has a slot. A fixing handle is fixedly connected to the top of the mounting plate. A positioning post is fixedly connected to the top of the mounting housing, and a guide groove is provided on the inner wall of the mounting housing. A fixing bearing is fixedly connected to the inner wall of the mounting housing, and a threaded rod is fixedly connected to the inner wall of the fixing bearing. A moving block is threadedly connected to the outer wall of the threaded rod, and a locking block is fixedly connected to the outer wall of the moving block.

[0010] Preferably, an electrically controlled inlet valve is provided on one side of the first water tank, and an electrically controlled drain valve is provided on one side of the first water tank.

[0011] Preferably, there are multiple through slots, and the multiple through slots are equally spaced on the mounting housing.

[0012] Preferably, the number of positioning posts is four, and two positioning posts form a group, with the two groups of positioning posts symmetrically arranged on the mounting housing.

[0013] Preferably, one end of the positioning post passes through the positioning hole, and the outer wall of the positioning post fits against the inner wall of the positioning hole.

[0014] Preferably, the inner wall shape and size of the guide groove match the outer wall shape and size of the moving block, and the inner wall of the guide groove fits into the outer wall of the moving block.

[0015] Preferably, one end of the card block extends into the card slot, and the outer wall of the card block is in contact with the inner wall of the card slot.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0017] First, this utility model includes an installation shell, a sliding groove, a through groove, an installation slot, a float, and a laser rangefinder. When the first water tank is used as the target water tank, its internal float slides along the sliding groove with the liquid level. The laser rangefinder detects the position of the float in real time and transmits the data to the control box. At the same time, the laser rangefinder of the second water tank also feeds back its own liquid level information to the control box. After comparison and analysis, the control box drives the electrically controlled inlet valve and electrically controlled outlet valve of the second water tank to work, so that the liquid level of the second water tank quickly follows the change of the first water tank. Conversely, if the second water tank is used as the target, the device can reverse the liquid level movement of the first water tank to the second water tank. Through the bidirectional follow-up design, it breaks through the limitation of the single fixed adjustment of the existing technology and solves the problem of synchronous control of liquid level in multi-container scenarios. Whether it is the coordinated operation of reaction vessels in chemical production or the simulation comparison of multiple water bodies in experiments, it can ensure the real-time consistency of liquid level changes and the control deviation can be controlled within a small range.

[0018] Secondly, this utility model includes a mounting plate, a laser rangefinder, positioning holes, a slot, a fixed handle, a positioning post, a guide groove, a fixed bearing, a threaded rod, a moving block, and a locking block. The mounting plate achieves quick positioning and assembly through the cooperation of the positioning post and the positioning hole. By rotating the threaded rod, the moving block drives the locking block to move, and the locking block extends into the slot of the mounting plate to clamp and fix it. Reverse operation allows for quick disassembly. When the laser rangefinder needs maintenance, it is easy to quickly remove the mounting plate to inspect the laser rangefinder. The operation is simple and convenient to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the support frame and the first water tank structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the installation shell and mounting plate structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the card block and card slot structure of this utility model.

[0023] The components include: 1. Bracket; 2. First water tank; 3. Second water tank; 4. Control box; 5. Mounting assembly; 501. Mounting housing; 502. Slide groove; 503. Through groove; 504. Mounting groove; 505. Float block; 6. Fixing assembly; 601. Mounting plate; 602. Laser rangefinder; 603. Positioning hole; 604. Slot; 605. Fixed handle; 606. Positioning post; 607. Guide groove; 608. Fixed bearing; 609. Threaded rod; 610. Moving block; 611. Locking block; 7. Electrically controlled water inlet valve; 8. Electrically controlled drain valve. Detailed Implementation

[0024] 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.

[0025] like Figure 1-4 As shown, a follow-up automatic liquid level control device includes a bracket 1, a first water tank 2 is provided on one side of the bracket 1, and a second water tank 3 is provided on the other side of the bracket 1. A control box 4 is provided on the top of the bracket 1, and an installation component 5 is provided on the inner wall of the first water tank 2.

[0026] Mounting component 5 includes mounting housing 501, with a sliding groove 502 on the inner wall of mounting housing 501, a through groove 503 on one side of mounting housing 501, and a mounting groove 504 on the top of mounting housing 501. A float 505 is slidably connected to the inner wall of sliding groove 502, and a fixing component 6 is provided on the top of mounting housing 501.

[0027] The fixing component 6 includes a mounting plate 601, and a laser rangefinder 602 is fixedly mounted on the bottom of the mounting plate 601. The inner wall of the mounting plate 601 has a positioning hole 603, and a slot 604 is provided on one side of the mounting plate 601. A fixing handle 605 is fixedly connected to the top of the mounting plate 601. A positioning post 606 is fixedly connected to the top of the mounting housing 501, and a guide groove 607 is provided on the inner wall of the mounting housing 501. A fixing bearing 608 is fixedly connected to the inner wall of the mounting housing 501, and a threaded rod 609 is fixedly connected to the inner wall of the fixing bearing 608. A moving block 610 is threadedly connected to the outer wall of the threaded rod 609, and a locking block 611 is fixedly connected to the outer wall of the moving block 610.

[0028] Through the above technical solution, when the first water tank 2 is used as the target water tank, its internal float 505 slides along the slide groove 502 with the liquid level. The laser rangefinder 602 detects the position of the float 505 in real time and transmits the data to the control box 4. At the same time, the laser rangefinder 602 of the second water tank 3 also feeds back its own liquid level information to the control box 4. After comparison and analysis, the control box 4 drives the electrically controlled inlet valve 7 and electrically controlled outlet valve 8 of the second water tank 3 to work, so that the liquid level of the second water tank 3 quickly follows the change of the first water tank 2. Conversely, if the second water tank 3 is used as the target, the device can reverse the liquid level movement of the first water tank 2 to the second water tank 3. The bidirectional follow-up design breaks through the limitation of the single fixed adjustment of the existing technology and solves the problem of synchronous liquid level control in multi-container scenarios. This is applicable to both chemical production and other applications. Whether it's the coordinated operation of the reactor or the simulated comparison of multiple water bodies in the experiment, the real-time consistency of liquid level changes can be guaranteed, and the control deviation can be kept within a small range. The sampling frequency of the laser rangefinder 602 is not less than 10 Hz, and the response time of the electrically controlled valve is less than or equal to 0.5 seconds. The mounting plate 601 achieves rapid positioning and assembly through the cooperation of the positioning pin 606 and the positioning hole 603. By rotating the threaded rod 609, the moving block 610 drives the locking block 611 to move. The locking block 611 extends into the locking groove 604 of the mounting plate 601 to clamp and fix it. The reverse operation allows for quick disassembly. When the laser rangefinder 602 needs maintenance, it is convenient to quickly remove the mounting plate 601 to inspect the laser rangefinder 602. The operation is simple and easy to use.

[0029] Specifically, an electrically controlled inlet valve 7 is provided on one side of the first water tank 2, and an electrically controlled drain valve 8 is provided on one side of the first water tank 2.

[0030] Through the above technical solution, the electrically controlled inlet valve 7 can be opened or closed under the command of the control box 4 to control the water inlet of the first water tank 2; the electrically controlled drain valve 8 can be opened or closed under the command of the control box 4 to control the drainage of the first water tank 2. The two work together to quickly adjust the liquid level of the first water tank 2. Similarly, the second water tank 3 is also equipped with an electrically controlled inlet valve 7 and an electrically controlled drain valve 8, which are independently controlled by the control box 4. The second water tank 3 is also equipped with an installation component 5 and a fixing component 6; a reflector is installed on the top of the float 505 to ensure stable reflection of the laser rangefinder 602 signal.

[0031] Specifically, there are multiple through slots 503, and the multiple through slots 503 are equally spaced on the mounting housing 501.

[0032] Through the above technical solution, the setting of multiple through slots 503 allows the liquid in the first water tank 2 to freely enter and exit the installation shell 501, so that the liquid level inside and outside the installation shell 501 remains consistent. This ensures that the float 505 can move up and down accurately with the change of liquid level in the water tank, providing a detection benchmark for the laser rangefinder 602 and improving the accuracy of liquid level detection.

[0033] Specifically, there are four positioning posts 606, and two positioning posts 606 form a group, with the two groups of positioning posts 606 symmetrically arranged on the mounting housing 501.

[0034] With the above technical solution, the four positioning posts 606 are symmetrically distributed, which can position the mounting plate 601 from different positions, enhance the stability of the mounting plate 601 during installation, and prevent the mounting plate 601 from tilting or shifting during the installation process.

[0035] Specifically, one end of the positioning post 606 penetrates the positioning hole 603, and the outer wall of the positioning post 606 fits against the inner wall of the positioning hole 603.

[0036] Through the above technical solution, the close cooperation between the positioning post 606 and the positioning hole 603 enables the mounting plate 601 to be quickly positioned on the mounting housing 501, reducing the adjustment time during installation and ensuring the accuracy of the position of the mounting plate 601.

[0037] Specifically, the inner wall shape and size of the guide groove 607 match the outer wall shape and size of the moving block 610, and the inner wall of the guide groove 607 fits against the outer wall of the moving block 610.

[0038] Through the above technical solution, the guide groove 607 can restrict and guide the movement direction of the moving block 610, so that the moving block 610 can only move smoothly along the direction of the guide groove 607, and avoid the moving block 610 from rotating or deviating under the drive of the threaded rod 609.

[0039] Specifically, one end of the card block 611 extends into the card slot 604, and the outer wall of the card block 611 fits against the inner wall of the card slot 604.

[0040] By using the above technical solution, the mounting plate 601 can be firmly fixed to the mounting housing 501 by inserting the locking block 611 into the locking slot 604 for clamping and fixing, thus preventing the mounting plate 601 from loosening or shifting due to vibration or other factors during device operation.

[0041] In use, first connect the device to an external power supply. The external power supply provides power to the device. When the liquid level in the second water tank 3 needs to follow the change of the first water tank 2 as the target water tank: the liquid in the first water tank 2 enters and exits the mounting shell 501 through the through groove 503, keeping the liquid levels inside and outside the mounting shell 501 consistent. The float 505 slides up and down along the slide groove 502 as the liquid level in the first water tank 2 changes. The laser rangefinder 602 detects the position of the float 505 in real time and converts it into the liquid level of the first water tank 2. The system continuously transmits the height signal to the control box 4. Simultaneously, the laser rangefinder 602 in the second water tank 3 detects the liquid level in its own tank using the same principle and sends the signal to the control box 4. Upon receiving the liquid level signals from both tanks, the control box 4 immediately compares and calculates the liquid level deviation. If the liquid level in the second water tank 3 is lower than that in the first water tank 2, the control box 4 sends an opening command to the electrically controlled inlet valve 7 of the second water tank 3 and a closing command to the electrically controlled drain valve 8, causing the first water tank 2 to... When water enters the second water tank 3, the liquid level rises. If the liquid level in the second water tank 3 is higher than that in the first water tank 2, the control box 4 controls the electrically controlled drain valve 8 of the second water tank 3 to open and the electrically controlled inlet valve 7 to close, causing the second water tank 3 to drain and the liquid level to drop. This real-time adjustment continues until the liquid level in the second water tank 3 matches that in the first water tank 2, and the deviation is controlled within a preset range. Then, the control box 4 issues a command to reset the relevant valves and stop the adjustment. Conversely, when the second water tank 3 is used as the target water tank, the working principle is the same. Similarly, the laser rangefinder 602 of the second water tank 3 detects its liquid level and transmits it to the control box 4. The laser rangefinder 602 of the first water tank 2 synchronously feeds back its own liquid level information. After comparison, the control box 4 drives the electric inlet valve 7 and the electric drain valve 8 of the first water tank 2 to operate, so that the liquid level of the first water tank 2 follows the liquid level of the second water tank 3, thereby realizing bidirectional follow-up control of the liquid levels of the two water tanks. This completes all the work. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A follow-up automatic liquid level control device, comprising a support (1), characterized in that: A first water tank (2) is provided on one side of the bracket (1), and a second water tank (3) is provided on the other side of the bracket (1). A control box (4) is provided on the top of the bracket (1), and an installation component (5) is provided on the inner wall of the first water tank (2). The mounting assembly (5) includes a mounting housing (501), and the inner wall of the mounting housing (501) is provided with a sliding groove (502), a through groove (503) is provided on one side of the mounting housing (501), and a mounting groove (504) is provided on the top of the mounting housing (501). A float (505) is slidably connected to the inner wall of the sliding groove (502), and a fixing assembly (6) is provided on the top of the mounting housing (501). The fixing component (6) includes a mounting plate (601), and a laser rangefinder (602) is fixedly mounted on the bottom of the mounting plate (601). The inner wall of the mounting plate (601) is provided with a positioning hole (603), and a slot (604) is provided on one side of the mounting plate (601). A fixing handle (605) is fixedly connected to the top of the mounting plate (601). A positioning post (606) is fixedly connected to the top of the mounting housing (501), and a guide groove (607) is provided on the inner wall of the mounting housing (501). A fixing bearing (608) is fixedly connected to the inner wall of the mounting housing (501), and a threaded rod (609) is fixedly connected to the inner wall of the fixing bearing (608). A moving block (610) is threadedly connected to the outer wall of the threaded rod (609), and a locking block (611) is fixedly connected to the outer wall of the moving block (610).

2. The follow-up automatic liquid level control device according to claim 1, characterized in that: An electrically controlled inlet valve (7) is provided on one side of the first water tank (2), and an electrically controlled drain valve (8) is provided on one side of the first water tank (2).

3. The follow-up automatic liquid level control device according to claim 1, characterized in that: The number of through slots (503) is multiple, and the multiple through slots (503) are equally spaced on the mounting housing (501).

4. The follow-up automatic liquid level control device according to claim 1, characterized in that: The number of positioning posts (606) is four, and two positioning posts (606) form a group. The two groups of positioning posts (606) are symmetrically arranged on the mounting shell (501).

5. The follow-up automatic liquid level control device according to claim 4, characterized in that: One end of the positioning post (606) passes through the positioning hole (603), and the outer wall of the positioning post (606) fits against the inner wall of the positioning hole (603).

6. The follow-up automatic liquid level control device according to claim 1, characterized in that: The inner wall shape and size of the guide groove (607) match the outer wall shape and size of the moving block (610), and the inner wall of the guide groove (607) fits against the outer wall of the moving block (610).

7. The follow-up automatic liquid level control device according to claim 1, characterized in that: One end of the card block (611) extends into the card slot (604), and the outer wall of the card block (611) fits against the inner wall of the card slot (604).

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