Ultrasonic liquid level meter control mechanism

Abstract

The utility model provides an ultrasonic liquid level meter control mechanism which comprises a distribution box, a controller and an ultrasonic liquid level meter. The distribution box is rotationally connected with a cover body; the controller is embedded in the cover body and is electrically connected with the distribution box; the ultrasonic liquid level meter is arranged on the side wall of a wellhead of the water collecting well and is in communication connection with the controller; a mounting opening is formed in the cover body in a penetrating manner, and two mounting frames are respectively fixed on the inner side wall of the cover body and positioned on two sides of the mounting opening; a mounting groove is defined by the four mounting frames and the mounting opening; and the controller is embedded in the mounting groove and is fixedly connected with the mounting frame. According to the utility model, the liquid level in the water collecting well can be monitored in a real-time non-contact manner, the conditions of'dry pumping 'damage of the drainage pump or sewage overflow and the like can be effectively prevented, and the construction difficulty and the safety risk of constructors can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of liquid level monitoring technology, specifically to an ultrasonic liquid level gauge control mechanism. Background Technology

[0002] In underground buildings such as underground parking lots, due to the low elevation, sewage cannot be directly discharged by gravity through sewage pipes. Therefore, sump pits are typically installed in fixed underground areas to collect sewage from that area, which is then pumped to the municipal drainage system. Currently, the automatic control of sump pit sewage pumps generally relies on plastic liquid level floats. These floats contain a gravity ball, and their working principle is as follows: when the liquid level in the sump rises or falls, the float rises or falls accordingly due to the buoyancy of the liquid; when the float's tilt angle reaches the repose angle of the gravity ball, the gravity ball activates and triggers the control circuit, thereby controlling the start and stop of the sewage pump. However, existing control methods based on plastic liquid level floats have the following drawbacks:

[0003] (1) The movement of the float in the sump is not effectively constrained, and it is prone to drifting and has an unpredictable trajectory. It is easy to interfere with components such as the sewage pump, slide bar, and chain in the well, which will obstruct the rise and fall of the float. This will cause the liquid level in the sump to become out of control. If the liquid level is too low, the sewage pump will "dry pump", which will damage the equipment. If the liquid level is too high, it may cause sewage to overflow and even cause a safety accident.

[0004] (2) When the float is installed in the water collection well, the construction personnel need to enter the narrow space of the well to carry out the installation, maintenance or replacement work, which is not only difficult to carry out, but also poses a high safety risk. Utility Model Content

[0005] The purpose of this utility model is to provide an ultrasonic level gauge control mechanism, which effectively solves the technical problems of existing automatic control methods for sewage pumps in water collection wells, such as easy loss of control over the water level in the water collection well, high construction difficulty, and high safety risks.

[0006] To solve the above-mentioned technical problems, this utility model provides an ultrasonic level gauge control mechanism, including a power distribution box, a controller, and an ultrasonic level gauge; the power distribution box is rotatably connected to a cover; the controller is embedded in the cover and electrically connected to the power distribution box; the ultrasonic level gauge is installed on the side wall of the wellhead of the water collection well and is communicatively connected to the controller; the cover has a through-hole for mounting, and two mounting brackets are fixed on both sides of the mounting hole on the inner side wall of the cover; the four mounting brackets and the mounting hole together form a mounting groove; the controller is embedded in the mounting groove and securely connected to the mounting brackets.

[0007] Preferably, the mounting bracket is Z-shaped, and the free end of the mounting bracket has a fastening hole.

[0008] Preferably, it also includes a base, which is fixed to the side wall of the wellhead of the water collection well; the ultrasonic level gauge is snapped onto the base.

[0009] Preferably, the base includes a fixed plate and a support plate; the fixed plate and the support plate are arranged perpendicularly to each other, and a connecting plate is connected to each side of the fixed plate and the support plate; a mounting hole is opened through the support plate, and the ultrasonic level gauge is inserted into the mounting hole.

[0010] Preferably, a limiting ring is provided on the outer peripheral wall of the ultrasonic level gauge, and the ultrasonic level gauge is engaged in the mounting hole through the limiting ring.

[0011] Preferably, a bayonet is provided on each side of the mounting hole, and the limiting ring is provided with two locking blocks corresponding to the bayonet. The locking blocks are engaged with the mounting hole through the bayonet.

[0012] Preferably, a liquid level alarm is installed on the cover, and the liquid level alarm is communicatively connected to the controller.

[0013] Preferably, it also includes a first drainage pump, which is disposed in the water collection well and is communicatively connected to the controller.

[0014] Preferably, it also includes a second drainage pump, which is located in the water collection well and is communicatively connected to the controller.

[0015] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0016] (1) The ultrasonic level gauge control mechanism provided by this utility model is equipped with a power distribution box, a controller and an ultrasonic level gauge. The power distribution box is equipped with a cover with an installation port. Two mounting brackets are fixed on both sides of the installation port. Through the cooperation between the above components, the ultrasonic level gauge control mechanism can not only monitor the liquid level in the collection well in real time in a non-contact manner, effectively preventing the drainage pump from being damaged by "dry pumping" or sewage from overflowing, but also reduce the construction difficulty and safety risks for construction personnel. It effectively solves the technical problems of easy interference of the float movement, liquid level loss and high installation and maintenance difficulty and high risk in the existing automatic control method of the collection well sewage pump based on plastic liquid level float.

[0017] (2) The ultrasonic level gauge control mechanism provided by this utility model, by setting the mounting bracket in a Z shape, can not only provide a stable support for the controller, but also facilitate the installation and disassembly of the controller. When installing the controller, bolts, screws and other fastening parts are used to fasten the controller through the fastening holes, which can fix the controller. The installation is convenient and the disassembly and maintenance are also more convenient.

[0018] (3) The ultrasonic level gauge control mechanism provided by this utility model has a base, which can not only install the ultrasonic level gauge stably on the side wall of the wellhead for level measurement, but also facilitate the installation, disassembly and maintenance of the ultrasonic level gauge by the construction personnel through the snap-fit ​​method, thereby reducing the construction difficulty and improving the construction efficiency.

[0019] (4) The ultrasonic level gauge control mechanism provided by this utility model has a limit ring on the outer peripheral wall of the ultrasonic level gauge, which can prevent the ultrasonic level gauge from moving axially or shaking in the mounting hole, thus ensuring the stability of the ultrasonic level gauge and improving the accuracy of level measurement.

[0020] (5) The ultrasonic level gauge control mechanism provided by this utility model has a bayonet on both sides of the mounting hole and a locking block corresponding to the bayonet on the limiting ring. Through the cooperation of the bayonet and the locking block, the stability of the ultrasonic level gauge in the mounting hole can be further enhanced, preventing the ultrasonic level gauge from axial displacement, ensuring the fixed installation height of the ultrasonic level gauge, and ensuring the accuracy of the level measurement.

[0021] (6) The ultrasonic level gauge control mechanism provided by this utility model is equipped with a level alarm, which allows construction personnel to quickly understand the level of the water collection well through the working status of the level alarm and take timely countermeasures to avoid equipment damage, safety accidents and other problems caused by abnormal level. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the prior art and the embodiments of this application, the drawings used in the description of the prior art and the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the assembly structure of the distribution box and controller in this utility model.

[0024] Figure 2 This is a schematic diagram of the structure of the cover body in this utility model.

[0025] Figure 3 This is a schematic diagram of the ultrasonic level gauge in this utility model.

[0026] Figure 4 This is a schematic diagram of the base structure in this utility model.

[0027] Figure 5 This is a schematic diagram of the ultrasonic level gauge and base in use according to this utility model.

[0028] Explanation of reference numerals in the attached drawings: Distribution box 100, cover 110, mounting groove 111, mounting port 111A, mounting bracket 111B, liquid level alarm 112, controller 200, ultrasonic liquid level gauge 300, limit ring 310, locking block 311, base 400, fixing plate 410, support plate 420, mounting hole 421, bayonet 422, connecting plate 430, first drainage pump 500, second drainage pump 600. Detailed Implementation

[0029] To better understand the purpose, structure, and function of this utility model, the ultrasonic level gauge control mechanism provided by this utility model will be described in further detail below with reference to the accompanying drawings, so that those skilled in the art can better understand this utility model and implement it. However, the embodiments given are not intended to limit this utility model.

[0030] Please see Figures 1 to 5 As shown in the embodiment of this application, an ultrasonic level gauge control mechanism is provided, including a power distribution box 100, a controller 200, and an ultrasonic level gauge 300; the power distribution box 100 is rotatably connected to a cover 110; the controller 200 is embedded in the cover 110 and electrically connected to the power distribution box 100; the ultrasonic level gauge 300 is disposed on the wellhead sidewall of the water collection well and is communicatively connected to the controller 200; the cover 110 has a through-hole 111A, and two mounting brackets 111B are fixed on the inner sidewall of the cover 110 on both sides of the mounting hole 111A; the four mounting brackets 111B and the mounting hole 111A together form a mounting groove 111; the controller 200 is embedded in the mounting groove 111 and is securely connected to the mounting brackets 111B. The ultrasonic level gauge control mechanism also includes a first drainage pump 500 and a second drainage pump 600. The first drainage pump 500 is located in the water collection well and is communicatively connected to the controller 200. The second drainage pump 600 is located on one side of the first drainage pump 500 and is communicatively connected to the controller 200.

[0031] Because it is equipped with a distribution box 100, a controller 200, and an ultrasonic level gauge 300, and the distribution box 100 is equipped with a cover 110, the cover 110 has an installation port 111A, and two mounting brackets 111B are fixed on both sides of the installation port 111A. Through the cooperation of the above components, the ultrasonic level gauge control mechanism can not only monitor the liquid level in the collection well in real time in a non-contact manner, effectively preventing the drainage pump from being damaged by "dry pumping" or sewage from overflowing, but also reduce the construction difficulty and safety risks for construction personnel. It effectively solves the technical problems of existing automatic control methods for collection well sewage pumps based on plastic liquid level floats, such as easy interference of float movement, liquid level loss, and high installation and maintenance difficulty and risk.

[0032] Specifically, a distribution box 100 is installed to provide a stable power supply for electrical equipment such as the controller 200, the first drainage pump 500, and the second drainage pump 600. An ultrasonic level gauge 300 is installed on the side wall of the collection well opening. Ultrasonic echolocation is used to measure the distance of the liquid level, enabling non-contact measurement of the liquid level within the collection well. Unlike plastic level floats, this method avoids drifting and interference with components such as the drainage pumps due to the lack of constraint on the float's movement within the collection well. This not only ensures accurate level measurement but also eliminates the need for construction personnel to enter the well for installation and maintenance, significantly reducing construction difficulty and safety risks. The controller 200 receives the level data transmitted by the ultrasonic level gauge 300 and controls the start and stop of the first drainage pump 500 and / or the second drainage pump 600 according to a preset critical level range. This prevents damage from "dry pumping" or sewage overflow, ensuring efficient and stable operation of the drainage system. When the liquid level reaches the high end of the low liquid level range, either the first drainage pump 500 or the second drainage pump 600 is activated to pump water, meeting the drainage needs at low liquid levels while avoiding energy waste caused by multiple drainage pumps operating simultaneously. When the liquid level drops to the low end of the low liquid level range, either the first drainage pump 500 or the second drainage pump 600 is stopped to prevent the drainage pumps from "dry pumping". When the liquid level continues to rise to the high end of the high liquid level range, both the first drainage pump 500 and the second drainage pump 600 are activated simultaneously to pump water quickly, preventing sewage overflow due to excessively high liquid levels. When the liquid level drops to the low end of the high liquid level range, either the first drainage pump 500 or the second drainage pump 600 is shut down, and the remaining drainage pump executes the control logic for the low liquid level range. The mounting slot 111A and the mounting bracket 111B work together to form a mounting groove 111 for mounting the control console, so that the control console can be securely mounted on the cover 110, ensuring that the construction personnel can operate stably during use, and also facilitating the installation and disassembly of the control console, improving the efficiency of assembly and disassembly.

[0033] In a preferred embodiment, the mounting bracket 111B is Z-shaped, and a fastening hole is provided at the free end of the mounting bracket 111B. By arranging the mounting bracket 111B in a Z-shape, not only can a stable support be provided for the controller 200, but the installation and removal of the controller 200 can also be facilitated. When installing the controller 200, bolts, screws, or other fastening components are used to fasten the controller 200 through the fastening hole, thus fixing the controller 200. Installation is convenient, and disassembly and maintenance are also more convenient.

[0034] In a preferred embodiment, a base 400 is also included, which is fixed to the side wall of the wellhead of the collection well; the ultrasonic level gauge 300 is snapped onto the base 400. Because of the base 400, the ultrasonic level gauge 300 can be securely installed on the side wall of the wellhead for level measurement, and the snap-fit ​​method facilitates the installation, disassembly, and maintenance of the ultrasonic level gauge 300 by construction personnel, reducing construction difficulty and improving construction efficiency.

[0035] In a preferred embodiment, the base 400 includes a fixing plate 410 and a support plate 420; the fixing plate 410 and the support plate 420 are arranged perpendicularly to each other, and a connecting plate 430 is connected to each side of the fixing plate 410 and the support plate 420 respectively; a mounting hole 421 is formed through the support plate 420, and the ultrasonic level gauge 300 is inserted into the mounting hole 421.

[0036] Specifically, by setting the fixing plate 410 and the support plate 420 perpendicular to each other, an L-shaped basic support frame is formed. At the same time, connecting plates 430 are set on both sides of the fixing plate 410 and the support plate 420 to further strengthen the connection between the fixing plate 410 and the support plate 420, providing a stable triangular support structure for the ultrasonic level gauge 300. By opening mounting holes 421 on the support plate 420, the size of the mounting holes 421 is adapted to the ultrasonic level gauge 300. The installation of the ultrasonic level gauge 300 can be completed simply by inserting it into the mounting holes 421. When it is necessary to disassemble and maintain the ultrasonic level gauge 300, it can be simply pulled out from the mounting holes 421. The operation is simple and convenient, greatly reducing the difficulty and time cost of maintenance.

[0037] In a preferred embodiment, a limiting ring 310 is provided on the outer peripheral wall of the ultrasonic level gauge 300, and the ultrasonic level gauge 300 is snapped into the mounting hole 421 through the limiting ring 310.

[0038] Because a limiting ring 310 is provided on the outer peripheral wall of the ultrasonic level gauge 300, axial movement or shaking of the ultrasonic level gauge 300 within the mounting hole 421 can be prevented, ensuring the stability of the ultrasonic level gauge 300 and improving the accuracy of level measurement. Specifically, by providing a limiting ring 310 on the outer peripheral wall of the ultrasonic level gauge 300, the outer diameter of the limiting ring 310 is larger than the inner diameter of the mounting hole 421. When the ultrasonic level gauge 300 is inserted into the mounting hole 421, the limiting ring 310 can form a snap-fit ​​engagement with the edge of the opening of the mounting hole 421, thereby restricting the ultrasonic level gauge 300 from continuing to move downwards and also preventing it from moving axially up and down within the hole. This ensures that the ultrasonic level gauge 300 maintains a fixed position within the mounting hole 421, avoiding the impact of positional changes on the liquid level. The measurement accuracy is high. During installation, simply align the ultrasonic level gauge 300 with the limit ring 310 and insert it into the mounting hole 421 until the limit ring 310 is engaged with the edge of the mounting hole 421. The operation is simple and quick. During disassembly, simply pull the ultrasonic level gauge 300 upward with appropriate external force to disengage the limit ring 310 from the edge of the mounting hole 421, and it can be easily removed from the mounting hole 421. This facilitates the maintenance and replacement of the ultrasonic level gauge 300 and greatly improves maintenance efficiency.

[0039] In a preferred embodiment, a slot 422 is provided on each side of the mounting hole 421, and the limiting ring 310 is provided with two locking blocks 311 corresponding to the slots 422. The locking blocks 311 are engaged with the mounting hole 421 through the slots 422.

[0040] Since the mounting hole 421 has a bayonet 422 on each side, and the limiting ring 310 is provided with a locking block 311 corresponding to the bayonet 422, the cooperation between the bayonet 422 and the locking block 311 can further enhance the stability of the ultrasonic level gauge 300 in the mounting hole 421, prevent the ultrasonic level gauge 300 from axially displacing, ensure the fixed installation height of the ultrasonic level gauge 300, and ensure the accuracy of the liquid level measurement. During installation, first align the locking block 311 on the ultrasonic level gauge 300 with the slot 422 of the mounting hole 421 and insert it. Then, rotate the ultrasonic level gauge 300 circumferentially by a certain angle to securely fasten it onto the mounting hole 421. During disassembly, rotate the ultrasonic level gauge 300 circumferentially to align the locking block 311 with the slot 422 of the mounting hole 421, and apply appropriate external force to the ultrasonic level gauge 300 to disengage the locking block 311 from the slot 422. The ultrasonic level gauge 300 can then be easily removed. The operation is simple and convenient.

[0041] In a preferred embodiment, a liquid level alarm 112 is installed on the cover 110, and the liquid level alarm 112 is communicatively connected to the controller 200. Because of the liquid level alarm 112, construction personnel can quickly understand the liquid level of the collection well by observing its working status and take timely countermeasures to avoid equipment damage or safety accidents caused by abnormal liquid levels. Specifically, after receiving the liquid level signal transmitted by the ultrasonic level gauge 300, the controller 200 analyzes and judges the liquid level status. When the liquid level reaches a preset warning range (e.g., approaching the high level of the high liquid level range may cause sewage overflow, or being at the low level of the low liquid level range may cause the drainage pump to "dry run"), the controller 200 sends a corresponding alarm signal to the liquid level alarm 112 to remind construction personnel to handle the situation promptly and avoid accidents.

[0042] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An ultrasonic liquid level gauge control mechanism, characterized by comprising: The device includes a distribution box (100), a controller (200), and an ultrasonic level gauge (300); the distribution box (100) is rotatably connected to a cover (110); the controller (200) is embedded in the cover (110) and electrically connected to the distribution box (100); the ultrasonic level gauge (300) is installed on the side wall of the wellhead of the water collection well and is communicatively connected to the controller (200); the cover (110) has a through-hole (111A), and two mounting brackets (111B) are fixed on the inner side wall of the cover (110) on both sides of the mounting hole (111A); the four mounting brackets (111B) and the mounting hole (111A) together form a mounting groove (111); the controller (200) is embedded in the mounting groove (111) and is securely connected to the mounting brackets (111B).

2. The ultrasonic liquid level meter control mechanism according to claim 1, characterized in that, The mounting bracket (111B) is Z-shaped, and a fastening hole is provided at the free end of the mounting bracket (111B).

3. The ultrasonic liquid level meter control mechanism according to claim 1 or 2, characterized in that, It also includes a base (400) fixed to the wellhead sidewall of the water collection well; the ultrasonic level gauge (300) is snapped onto the base (400).

4. The ultrasonic liquid level meter control mechanism according to claim 3, wherein, The base (400) includes a fixing plate (410) and a support plate (420); the fixing plate (410) and the support plate (420) are arranged perpendicularly to each other, and a connecting plate (430) is connected to each side of the fixing plate (410) and the support plate (420); a mounting hole (421) is opened through the support plate (420), and the ultrasonic level gauge (300) is inserted into the mounting hole (421).

5. The ultrasonic liquid level meter control mechanism according to claim 4, wherein, A limiting ring (310) is provided on the outer peripheral wall of the ultrasonic level gauge (300), and the ultrasonic level gauge (300) is snapped into the mounting hole (421) through the limiting ring (310).

6. The ultrasonic liquid level meter control mechanism according to claim 5, wherein, A slot (422) is provided on each side of the mounting hole (421). The limiting ring (310) is provided with two locking blocks (311) corresponding to the slots (422). The locking blocks (311) are engaged with the mounting hole (421) through the slots (422).

7. The ultrasonic liquid level meter control mechanism of claim 3, wherein, A liquid level alarm (112) is provided on the cover (110), and the liquid level alarm (112) is communicatively connected to the controller (200).

8. The ultrasonic liquid level meter control mechanism of claim 3, wherein, It also includes a first drainage pump (500), which is located in the water collection well and is communicatively connected to the controller (200).

9. The ultrasonic liquid level meter control mechanism of claim 3, wherein, It also includes a second drainage pump (600), which is located in the water collection well and is communicatively connected to the controller (200).

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