Chute liquid level monitoring and alarming device

By designing the chute level monitoring and alarm device for supporting arms, transverse arms and other components, the problems of convenient movement and inconvenient electrode operation in the existing technology are solved, real-time monitoring and maintenance convenience are improved, and convenient liquid level monitoring is achieved and alarm function.

CN222258396UActive Publication Date: 2024-12-27GUANGXI GUANGYIN ALUMINUM CO LTD BAISE BRANCH
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Patent Information

Application Number
CN202420352898.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-26
Publication Date
2024-12-27
Estimated Expiration
2034-02-26

AI Technical Summary

Technical Problem

The existing chute level monitoring and alarm device is inconvenient for convenient lateral movement and height control adjustment during use, and is inconvenient for monitoring and alarm device. The convenient electrode disconnection and connection type alarm of alarm device affects the real-time monitoring and the convenience of maintenance and maintenance. sex.

Method used

A chute level monitoring and alarm device including support arms, transverse arms, slide frames, cylinders, stepper motors, servo motors and remote controllers is designed to enable convenient lateral movement, height adjustment and electrode disconnection through these components/ The switch-on operation improves the real-time and maintenance convenience of the device.

Benefits of technology

It realizes convenient movement and height adjustment of the monitoring and alarm device, facilitates electrode disconnection and connection type alarm, improves real-time monitoring and maintenance convenience, and reduces the incidence of faults.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a chute liquid level monitoring alarm device which comprises a supporting arm and a transverse arm, the transverse arm is installed at the top end of the supporting arm, a sliding frame is arranged at the bottom end of the transverse arm, an air cylinder is arranged at the bottom end of the sliding frame, a movable rod is installed at the output end of the air cylinder, and a connecting plate is installed at the bottom end of the movable rod. An electrode bar B is mounted at the bottom end of the connecting plate, an electrode bar C is mounted at the bottom end of the connecting plate on one side of the electrode bar B, an electrode bar A is mounted at the bottom end of the connecting plate on one side of the electrode bar C far away from the electrode bar B, and an electrode bar D is mounted at the bottom end of the connecting plate on one side of the electrode bar A far away from the electrode bar C. According to the utility model, convenient transverse movement and height control adjustment are realized, convenient electrode disconnection and connection alarm of the monitoring alarm device is facilitated, maintenance, repair and transformation are facilitated, and the monitoring real-time performance of the monitoring alarm device is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of monitoring alarm devices, in particular to a chute liquid level monitoring alarm device. Background Art

[0002] The Ministry of Emergency Management launched the "100-day Zero Action" for special rectification of industrial and commercial production safety, and issued the "100-day Zero Action" work plan for special rectification of industrial and commercial production safety, which identified a total of 7 key rectification items for aluminum processing (deep well casting), referred to as the "Aluminum 7". The "Aluminum 7" stipulates that the liquid level monitoring and alarm devices are not installed at the aluminum outlet and flow channel interface of the fixed smelting furnace, and the relevant liquid level monitoring and alarm devices are not interlocked with the quick cut-off valve or emergency discharge valve on the flow channel. In order to meet the requirements of the "Seven Articles on Aluminum", Shenjing Casting Enterprise has carried out rectification as required, but it has the following shortcomings during use due to the influence of on-site dust, high temperature and high-temperature medium: 1. The on-site dust is high, which affects the measurement accuracy of the laser rangefinder and causes large errors; 2. The laser rangefinder needs to be installed above the high-position chute. The rangefinder has poor measurement accuracy, large errors, and is easily damaged in a high-temperature environment; 3. After the high-temperature aluminum liquid comes into contact with oxygen, an oxide scale of varying thickness will form on the surface. Because the reflectivity of the oxide scale surface and the aluminum liquid is different, the data fluctuates greatly during measurement, and false alarms often occur.

[0003] For example, a chute liquid level alarm device disclosed in the authorization announcement number CN218765495U belongs to the field of chute liquid level alarm, and includes a door frame, a gate plate, and a chute integrally connected to the lower end of the door frame, grooves are provided on both sides of the chute, and heat-resistant glass is installed on the outer surface of the groove, a diode is installed in one of the grooves, and a receiving tube is installed in the other groove, a bracket is provided on the upper surface of the end of the chute, and a laser level meter is installed on the lower surface of the bracket;

[0004] Although it uses a laser level meter to monitor the height of the aluminum liquid in the tank in real time and display it in digital form, thus providing the staff with a more specific liquid level height, a safety liquid level alarm is set. When the aluminum liquid level suddenly rises, or the liquid level rises due to an obstruction, the liquid level safety alarm device will sound an alarm;

[0005] However, the problem that the existing monitoring and alarm device is not conducive to convenient lateral movement and height control adjustment during use, is not conducive to convenient electrode disconnection and connection alarm of the monitoring and alarm device, is not conducive to maintenance and renovation, and affects the real-time monitoring of the monitoring and alarm device. Utility Model Content

[0006] The purpose of the utility model is to provide a chute liquid level monitoring and alarm device to solve the problems proposed in the above background technology that the monitoring and alarm device is not convenient for convenient lateral movement and height control adjustment, is not convenient for convenient electrode disconnection and connection alarm, is not convenient for maintenance and renovation, and affects the real-time monitoring of the monitoring and alarm device.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chute liquid level monitoring and alarm device, comprising a support arm and a transverse arm, the top end of the support arm is equipped with a transverse arm, the bottom end of the transverse arm is provided with a sliding frame, the bottom end of the sliding frame is provided with a cylinder, the output end of the cylinder is equipped with a movable rod, the bottom end of the movable rod is equipped with a connecting plate, the bottom end of the connecting plate is equipped with an electrode rod B, the bottom end of the connecting plate on one side of the electrode rod B is equipped with an electrode rod C, the bottom end of the connecting plate on the side of the electrode rod C away from the electrode rod B is equipped with an electrode rod A, the bottom end of the connecting plate on the side of the electrode rod A away from the electrode rod C is equipped with an electrode rod D, and the bottom end of the connecting plate on the side of the electrode rod D away from the electrode rod A is equipped with an electrode rod E, the outside of the support arm below the transverse arm is equipped with a chute body, the inside of the sliding frame is equipped with a stepping motor, the output end of the stepping motor is equipped with a worm, and the inside of the sliding frame on one side of the stepping motor is equipped with a rotating shaft, and the rotating shaft extends to the outside of the sliding frame and is connected to the cylinder.

[0008] Preferably, a worm wheel is mounted on the surface of the rotating shaft on one side of the worm, and the worm and the worm wheel are meshed with each other.

[0009] Preferably, a servo motor is installed at the top end of the transverse arm, a driving wheel is installed at the output end of the servo motor, and a movable shaft is movably installed at the bottom end of the transverse arm below the driving wheel.

[0010] Preferably, a driven wheel is mounted on the surface of the movable shaft, a first belt is disposed on the surface of the driving wheel, and the first belt extends to the surface of the driven wheel.

[0011] Preferably, a driven shaft is movably mounted on one side of the bottom end of the transverse arm away from the movable shaft, a second connecting wheel is sleeved on the surface of the driven shaft, and a first connecting wheel is sleeved on the surface of the movable shaft on one side of the driven wheel.

[0012] Preferably, a second belt is provided on the surface of the first connecting wheel, and the second belt extends to the surface of the second connecting wheel through the sliding frame, and the second belt is fixedly connected to the sliding frame.

[0013] Preferably, two groups of sliders are symmetrically installed at the top of the sliding frame, slide rails are installed at the bottom ends of the transverse arms above the sliders, and the slide rails are slidably connected to the sliders, and an audible and visual alarm is installed at the top of the transverse arm on one side of the servo motor, and the audible and visual alarm is fixedly connected to the transverse arm.

[0014] Preferably, a remote controller is installed on the outer wall of the support arm, and the output end of the remote controller is electrically connected to the input ends of the cylinder, electrode rod B, electrode rod C, electrode rod A, electrode rod D, electrode rod E, servo motor, sound and light alarm, and stepper motor.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the monitoring alarm device not only realizes convenient lateral movement and height control adjustment, but also facilitates the convenient electrode disconnection and connection alarm of the monitoring alarm device, facilitates maintenance and modification, and improves the real-time monitoring of the monitoring alarm device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the chute body of the utility model;

[0018] Figure 3 This is a front view structural schematic diagram of the utility model;

[0019] Figure 4 It is a schematic diagram of the side cross-sectional structure of the chute body of the utility model;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the electrode rod B of the utility model;

[0021] Figure 6 It is a schematic diagram of the enlarged side view of the worm of the utility model.

[0022] In the figure: 1. support arm; 2. lateral arm; 3. sliding frame; 4. cylinder; 5. movable rod; 6. connecting plate; 7. electrode rod B; 8. electrode rod C; 9. electrode rod A; 10. electrode rod D; 11. electrode rod E; 12. servo motor; 13. driving wheel; 14. movable shaft; 15. driven wheel; 16. first belt; 17. second belt; 18. first connecting wheel; 19. second connecting wheel; 20. slide rail; 21. slider; 22. chute body; 23. driven shaft; 24. sound and light alarm; 25. remote controller; 26. stepping motor; 27. worm; 28. worm wheel; 29. ​​rotating shaft. DETAILED DESCRIPTION

[0023] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0024] See also Figure 1-6The utility model provides an embodiment: a chute liquid level monitoring and alarm device, including a support arm 1 and a transverse arm 2, the top of the support arm 1 is equipped with the transverse arm 2, the bottom end of the transverse arm 2 is provided with a sliding frame 3, the bottom end of the sliding frame 3 is provided with a cylinder 4, the cylinder 4 plays a role in power output, the output end of the cylinder 4 is equipped with a movable rod 5, the bottom end of the movable rod 5 is equipped with a connecting plate 6, the bottom end of the connecting plate 6 is equipped with an electrode rod B7, the bottom end of the connecting plate 6 on one side of the electrode rod B7 is equipped with an electrode rod C8, and the electrode rod C8 is installed at the bottom end of the connecting plate 6 away from the side of the electrode rod B7. There is an electrode rod A9, an electrode rod D10 is installed at the bottom of the connecting plate 6 on the side of the electrode rod A9 away from the electrode rod C8, and an electrode rod E11 is installed at the bottom of the connecting plate 6 of the electrode rod D10 away from the electrode rod A9. A chute body 22 is arranged outside the support arm 1 below the horizontal arm 2, and a stepper motor 26 is installed inside the sliding frame 3. The stepper motor 26 plays a role of power output. A worm 27 is installed at the output end of the stepper motor 26. A rotating shaft 29 is arranged inside the sliding frame 3 on one side of the stepper motor 26, and the rotating shaft 29 extends to the outside of the sliding frame 3 and is connected to the cylinder 4.

[0025] When in use, the sound and light alarm 24 is turned on by operating the remote controller 25, and the cylinder 4 drives the electrode rods B7, C8, A9, D10 and E11 to move to the inside of the chute body 22, so that the electrode rods B7, C8 and A9 are inserted into the aluminum water inside the chute body 22, and the electrode rods D10 and E11 are higher than the aluminum water level. By utilizing the conductivity of the aluminum water and the up and down fluctuations of the aluminum water, the circuits of the electrode rods B7, C8, A9, D10 and E11 are connected or disconnected, and the sound and light alarm 24 transmits the signal to the remote controller 25 to facilitate the monitoring and early warning function of the sound and light alarm 24 on the liquid level of the interface of the chute body 22. When the aluminum water level inside the chute body 22 is lower than the electrode rod C8, the electrodes of the electrode rods C8 and A9 are disconnected, and the feedback is fed back to the remote controller 25, and the remote controller 25 controls the sound and light alarm 24 to send out an alarm Alarm signal, when the aluminum liquid level is lower than the electrode rod B7, the electrode rod B7 and the electrode rod A9 are disconnected and fed back to the remote controller 25, and the remote controller 25 controls the sound and light alarm 24 to send out an alarm signal, and at the same time, the aluminum liquid in the chute body 22 is discharged into the cast steel box. When the aluminum liquid level is higher than the electrode rod E11, the electrode rod A9 and the electrode rod E11 are connected, and the remote controller 25 controls the sound and light alarm 24 to send out an alarm signal. When the aluminum liquid level is higher than the electrode rod D10, the electrode rod A9 and the electrode rod D10 are connected, and the remote controller 25 controls the sound and light alarm 24 to send out an alarm signal, and at the same time, the aluminum liquid in the chute is discharged into the cast steel box, realizing the convenient electrode disconnection and connection alarm of the monitoring alarm device, facilitating real-time monitoring of the aluminum liquid level, reducing the failure rate, facilitating maintenance and renovation, and improving the real-time monitoring of the monitoring alarm device;

[0026] A worm wheel 28 is mounted on the surface of a rotating shaft 29 on one side of the worm 27, and the worm 27 and the worm wheel 28 are meshed with each other. A servo motor 12 is installed at the top of the transverse arm 2, and the servo motor 12 plays a role in power output. A driving wheel 13 is installed at the output end of the servo motor 12. A movable shaft 14 is movably mounted on the bottom end of the transverse arm 2 below the driving wheel 13, and a driven wheel 15 is mounted on the surface of the movable shaft 14. A first belt 16 is provided on the surface of the driving wheel 13, and the first belt 16 extends to the surface of the driven wheel 15. A driven shaft 23 is movably mounted on the side of the bottom end of the transverse arm 2 away from the movable shaft 14, and a second connecting wheel 19 is mounted on the surface of the driven shaft 23. A first connecting wheel 18 is mounted on the surface of the movable shaft 14 on one side of the driven wheel 15. A second belt 17 is provided, and the second belt 17 extends to the surface of the second connecting wheel 19 through the sliding frame 3, and the second belt 17 is fixedly connected to the sliding frame 3, two groups of sliders 21 are symmetrically installed on the top of the sliding frame 3, and the bottom ends of the transverse arms 2 above the sliders 21 are all installed with slide rails 20, and the slide rails 20 are slidably connected to the sliders 21, and the top ends of the transverse arms 2 on one side of the servo motor 12 are installed with sound and light alarms 24, and the sound and light alarms 24 are fixedly connected to the transverse arms 2, and a remote controller 25 is installed on the outer wall of the support arm 1, and the output end of the remote controller 25 is electrically connected to the input ends of the cylinder 4, the electrode rod B7, the electrode rod C8, the electrode rod A9, the electrode rod D10, the electrode rod E11, the servo motor 12, the sound and light alarm 24, and the stepping motor 26;

[0027] When in use, an external power supply is firstly used to operate the remote controller 25 to turn on the servo motor 12, and the servo motor 12 drives the driving wheel 13 to rotate, and the driving wheel 13 drives the first belt 16 to move. Under the support of the movable shaft 14, the driving wheel 13 drives the driven wheel 15 to rotate, and the driven wheel 15 drives the first connecting wheel 18 to rotate through the movable shaft 14, and the first connecting wheel 18 drives the second belt 17 to move. Under the cooperation of the second connecting wheel 19, the second belt 17 drives the sliding frame 3 to move laterally under the sliding support of the slider 21 and the slide rail 20, and the sliding frame 3 drives the cylinder 4, the movable rod 5, and the connecting plate 6 to move laterally as a whole, so as to facilitate the connecting plate 6 to drive the electrode rods B7, C8, A9, D10, and E11 to move to the top of the chute body 22, and the remote controller 25 is operated to open the cylinder 4, and the cylinder 4 drives the movable rod 5 to move, and the movable rod 5 drives the connecting plate 6 to move. The connecting plate 6 drives the electrode rods B7, C8, A9, D10 and E11 to move downward, so that the electrode rods B7, C8, A9, D10 and E11 are moved to the inside of the chute body 22. The stepper motor 26 is turned on by operating the remote controller 25, and the stepper motor 26 drives the worm 27 to rotate. Under the meshing action of the worm 27 and the worm wheel 28, the worm 27 drives the worm wheel 28 to rotate, and the worm wheel 28 drives the rotating shaft 29 to rotate. The rotating shaft 29 drives the cylinder 4, the movable rod 5 and the connecting plate 6 to rotate, so that the connecting plate 6 drives the electrode rods B7, C8, A9, D10 and E11 to rotate, so as to facilitate the conductive monitoring of the aluminum liquid at different positions, realize the convenient lateral movement adjustment and height control adjustment of the monitoring alarm device, facilitate the circular rotation adjustment, and improve the convenience of the control and adjustment of the monitoring alarm device.

[0028] Working principle: When in use, an external power supply is connected, and first, the servo motor 12 drives the driving wheel 13 to rotate, and the driving wheel 13 drives the first belt 16 to move, and the driving wheel 13 drives the driven wheel 15 to rotate, and the driven wheel 15 drives the first connecting wheel 18 to rotate through the movable shaft 14, and the first connecting wheel 18 drives the second belt 17 to move, and under the cooperation of the second connecting wheel 19, the second belt 17 drives the sliding frame 3 to move horizontally under the sliding support of the slider 21 and the slide rail 20, and the sliding frame 3 drives the cylinder 4, the movable rod 5, and the connecting plate 6 to move horizontally as a whole, so as to facilitate the connecting plate 6 to drive the electrode rods B7, C8, A9, D10, and E11 to move to the upper part of the chute body 22 The cylinder 4 drives the movable rod 5 to move, and the movable rod 5 drives the connecting plate 6 to move, so that the electrode rods B7, electrode rods C8, electrode rods A9, electrode rods D10, and electrode rods E11 are moved to the inside of the chute body 22, and the stepping motor 26 drives the worm 27 to rotate, and the worm gear 28 drives the rotating shaft 29 to rotate, so that the connecting plate 6 drives the electrode rods B7, electrode rods C8, electrode rods A9, electrode rods D10, and electrode rods E11 to rotate, so as to facilitate the conductive monitoring of the aluminum liquid at different positions, and then the sound and light alarm 24 is turned on by operating the remote controller 25, and the cylinder 4 drives the electrode rods B7, electrode rods C8, electrode rods A9, electrode rods D10, and electrode rods E11 to move to the inside of the chute body 22, so that the electrode rods B7, electrode rods C8, electrode rods A9, electrode rods D10, and electrode rods E11 are moved ... Electrode rod B7, electrode rod C8, and electrode rod A9 are inserted into the aluminum liquid inside the chute body 22, and electrode rod D10 and electrode rod E11 are higher than the aluminum liquid level. By utilizing the conductivity of the aluminum liquid and the up and down fluctuations of the aluminum liquid, the circuits of electrode rod B7, electrode rod C8, electrode rod A9, electrode rod D10, and electrode rod E11 are connected or disconnected, and the sound and light alarm 24 transmits the signal to the remote controller 25 to facilitate the sound and light alarm 24 to monitor and warn the liquid level of the interface of the chute body 22. When the aluminum liquid level inside the chute body 22 is lower than electrode rod C8, the electrodes of electrode rod C8 and electrode rod A9 are disconnected and fed back to the remote controller 25, which controls the sound and light alarm 24 to send out an alarm signal. When the aluminum liquid level is lower than electrode rod C8, the electrodes of electrode rod C8 and electrode rod A9 are disconnected and fed back to the remote controller 25, and the remote controller 25 controls the sound and light alarm 24 to send out an alarm signal. When the liquid level is lower than electrode rod B7, electrode rod B7 and electrode rod A9 are disconnected and fed back to remote controller 25, which controls sound and light alarm 24 to send out an alarm signal and discharge the aluminum liquid in chute body 22 into cast steel box at the same time. When the liquid level of aluminum liquid is higher than electrode rod E11, electrode rod A9 and electrode rod E11 are connected and fed back to remote controller 25, which controls sound and light alarm 24 to send out an alarm signal. When the liquid level of aluminum liquid is higher than electrode rod D10, electrode rod A9 and electrode rod D10 are connected and fed back to remote controller 25, which controls sound and light alarm 24 to send out an alarm signal and discharge the aluminum liquid in chute into cast steel box at the same time to complete the use of monitoring and alarm device.

[0029] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A chute liquid level monitoring and alarm device, comprising a support arm (1) and a transverse arm (2), characterized in that: A transverse arm (2) is installed at the top end of the support arm (1), a sliding frame (3) is provided at the bottom end of the transverse arm (2), a cylinder (4) is provided at the bottom end of the sliding frame (3), a movable rod (5) is installed at the output end of the cylinder (4), a connecting plate (6) is installed at the bottom end of the movable rod (5), an electrode rod B (7) is installed at the bottom end of the connecting plate (6), an electrode rod C (8) is installed at the bottom end of the connecting plate (6) on one side of the electrode rod B (7), an electrode rod A (9) is installed at the bottom end of the connecting plate (6) on the side of the electrode rod C (8) away from the electrode rod B (7), and the electrode rod A (9) is away from the electrode rod B (7). An electrode rod D (10) is installed at the bottom end of the connecting plate (6) on one side of the electrode rod C (8), and an electrode rod E (11) is installed at the bottom end of the connecting plate (6) away from the electrode rod A (9) of the electrode rod D (10). A chute body (22) is arranged outside the support arm (1) below the horizontal arm (2), a stepper motor (26) is installed inside the sliding frame (3), a worm gear (27) is installed at the output end of the stepper motor (26), and a rotating shaft (29) is arranged inside the sliding frame (3) on one side of the stepper motor (26), and the rotating shaft (29) extends to the outside of the sliding frame (3) and is connected to the cylinder (4).

2. A chute liquid level monitoring and alarm device according to claim 1, characterized in that: A worm wheel (28) is mounted on the surface of a rotating shaft (29) on one side of the worm (27), and the worm (27) and the worm wheel (28) are meshed with each other.

3. A chute liquid level monitoring and alarm device according to claim 1, characterized in that: A servo motor (12) is installed at the top end of the transverse arm (2), a driving wheel (13) is installed at the output end of the servo motor (12), and a movable shaft (14) is movably installed at the bottom end of the transverse arm (2) below the driving wheel (13).

4. A chute liquid level monitoring and alarm device according to claim 3, characterized in that: The surface of the movable shaft (14) is sleeved with a driven wheel (15), the surface of the driving wheel (13) is provided with a first belt (16), and the first belt (16) extends to the surface of the driven wheel (15).

5. A chute liquid level monitoring and alarm device according to claim 4, characterized in that: A driven shaft (23) is movably mounted on one side of the bottom end of the transverse arm (2) away from the movable shaft (14); a second connecting wheel (19) is sleeved on the surface of the driven shaft (23); and a first connecting wheel (18) is sleeved on the surface of the movable shaft (14) on one side of the driven wheel (15).

6. A chute liquid level monitoring and alarm device according to claim 5, characterized in that: A second belt (17) is provided on the surface of the first connecting wheel (18), and the second belt (17) extends through the sliding frame (3) to the surface of the second connecting wheel (19), and the second belt (17) is fixedly connected to the sliding frame (3).

7. A chute liquid level monitoring and alarm device according to claim 3, characterized in that: Two groups of slide blocks (21) are symmetrically mounted on the top of the slide frame (3); slide rails (20) are mounted on the bottom of the transverse arms (2) above the slide blocks (21); and the slide rails (20) are slidably connected to the slide blocks (21); and an audible and visual alarm (24) is mounted on the top of the transverse arm (2) on one side of the servo motor (12); and the audible and visual alarm (24) is fixedly connected to the transverse arm (2).

8. A chute liquid level monitoring and alarm device according to claim 1, characterized in that: A remote controller (25) is installed on the outer wall of the support arm (1), and the output end of the remote controller (25) is electrically connected to the input ends of the cylinder (4), the electrode rod B (7), the electrode rod C (8), the electrode rod A (9), the electrode rod D (10), the electrode rod E (11), the servo motor (12), the sound and light alarm (24), and the stepping motor (26).