Automatic liquid level and end point monitoring device for bird's nest soaking

Abstract

This invention relates to the field of bird's nest soaking and detection devices, and particularly to a liquid level and endpoint monitoring device for automated bird's nest soaking, designed to address the problem of poor performance of existing devices. The device includes a tank, a water replenishment mechanism, and a discharge mechanism. The water replenishment mechanism includes a water replenishment pipe connected to the tank. When the liquid level in the tank drops, a swing arm swings, causing a cam to rotate and push an insert rod upwards, connecting the water inlet to the water replenishment pipe. The discharge mechanism includes a soaking basket, a cover plate installed on the top of the tank, a drain pipe at the bottom, and a waste liquid tank vertically slidably mounted at the bottom of the drain pipe. After the bird's nest in the soaking basket has soaked, the drain pipe drains water into the waste liquid tank. The waste liquid tank moves downwards and pulls the cover plate upwards via a second pull rope. The cover plate pulls the soaking basket out of the tank via a first pull rope. This device can automatically replenish water and automatically discharge. The floating of the first float monitors the liquid level, and the automatic drainage of the drain pipe monitors the soaking endpoint.

Description

Technical Field

[0001] This invention relates to the technical field of bird's nest soaking and detection devices, specifically to a device for monitoring the liquid level and endpoint of automated bird's nest soaking. Background Technology

[0002] Bird's nests need to be soaked during processing. Traditionally, soaking bird's nests involves manually adding water, observing the liquid level, judging the soaking endpoint, and unloading the nests. This process is not only cumbersome and labor-intensive, but also prone to unstable liquid level control, which can easily lead to water shortage or excessive water addition. Furthermore, relying on manual experience to judge the soaking endpoint is highly subjective and inconsistent, easily resulting in under- or over-soaking, which affects the quality of the bird's nests and subsequent processing.

[0003] As bird's nest processing moves towards automation and large-scale production, existing soaking equipment, while capable of automatic water addition to a certain extent, mostly relies on simple liquid level switch control. It lacks a closed-loop water replenishment structure that adjusts in real time according to the bird's nest's water absorption and evaporation. Furthermore, the soaking endpoint still requires manual determination, making it impossible to achieve automatic drainage and unloading after soaking. Overall, the level of automation is low and the monitoring accuracy is insufficient, making it difficult to meet the continuous and standardized production needs of fresh stewed bird's nest. Summary of the Invention

[0004] This invention provides a liquid level and endpoint monitoring device for automated soaking of bird's nest, in order to solve the problem of poor performance of existing devices.

[0005] To alleviate the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0006] The automated bird's nest soaking liquid level and endpoint monitoring device includes a tank, a water replenishment mechanism, and a unloading mechanism; The water replenishment mechanism includes a water replenishment pipe connected to the tank body, a rod radially inserted into the end of the water replenishment pipe, a water permeable hole on the rod, a rocker arm hinged inside the tank body, a first float ball fixedly connected to one end of the rocker arm, a cam fixedly connected to the other end, the side wall of the cam fitting against the bottom end of the rod, the rocker arm swinging when the liquid level in the tank body drops, thereby rotating the cam and pushing the rod upward so that the water permeable hole connects with the water replenishment pipe; The unloading mechanism includes a foaming basket, a cover plate installed on the top of the tank and a drain pipe at the bottom, and a waste liquid tank vertically slidably installed at the bottom of the drain pipe. A first pull rope is installed on the soaking basket, and the other end of the first pull rope is connected to the bottom wall of the tank. A first guide wheel for guiding the first pull rope is rotatably connected to the cover plate. A second pull rope is connected between the waste liquid tank and the cover plate. After the bird's nest in the soaking basket is soaked, the drain pipe drains water into the waste liquid tank. The waste liquid tank moves down and pulls the cover plate up by the second pull rope. The cover plate pulls the first pull rope by the first pull rope, thereby lifting the soaking basket out of the tank.

[0007] Furthermore, a limiting plate is fixedly connected to the top of the insertion rod, and a first tension spring is connected between the limiting plate and the water supply pipe; The inner wall of the tank is fixedly connected to an installation shaft, and the cam is rotatably connected to the installation shaft.

[0008] Furthermore, an N-shaped frame is installed on the foaming basket, and a threaded cylinder is inserted into the N-shaped frame. A pressure plate is fixedly connected to the bottom end of the threaded cylinder, and a threaded rod is threadedly connected to the top end of the threaded cylinder. The end of the first pull rope is fixedly connected to the top end of the threaded rod.

[0009] Furthermore, the soaking basket is shaped like an inverted frustum. After the pressure plate is placed inside the soaking basket, it can contact the inner wall of the soaking basket. The space below the pressure plate inside the soaking basket is used to place bird's nest. After the bird's nest is soaked, it can push the pressure plate to move upward, thereby draining the water from the tank through the drain pipe.

[0010] Furthermore, a valve stem is inserted into the drain pipe. The bottom of the valve stem has a water leakage hole, and a cylindrical rod is inserted into the upper part. A second float is fixedly connected to the top of the cylindrical rod. A protrusion is provided on the side wall of the cylindrical rod. A sliding groove that cooperates with the protrusion is provided inside the valve stem. A limiting component for limiting the second float is provided inside the tank. When the pressure plate moves up, it can drive the limiting component to release the restriction on the second float, thereby causing the second float to float up. The cylindrical rod moves up to the valve stem. And, when the cylindrical rod moves up, causing the protrusion to slide to the top of the sliding groove, it can drive the valve stem to move up synchronously, thereby opening the drain pipe.

[0011] Furthermore, the limiting component includes a passive cylinder, the output end of which is fixedly connected to a limiting block. The limiting block abuts against the outer wall of the second float, and the contact portion between the limiting block and the second float is located above the center of the second float. When the passive cylinder shortens, the limiting block moves away from the second float, thereby causing the second float to float upward.

[0012] Furthermore, a piston assembly is connected to the first pull rope, and an air pipe is connected between the piston assembly and the passive cylinder. When the bird's nest is soaked and pushes the pressure plate to move upward, the piston assembly draws air from the passive cylinder, thereby shortening the passive cylinder.

[0013] Furthermore, the piston assembly includes a piston cylinder connected to the bottom wall of the tank, a piston plate slidably connected inside the piston cylinder, a second tension spring connected between the lower part of the piston plate and the piston cylinder, a piston rod fixedly connected to the upper part of the piston plate, the end of the piston rod passing through the piston cylinder and fixedly connected to the first pull rope, and the air pipe communicating with the space above the piston plate inside the piston cylinder. When the threaded rod moves axially relative to the threaded cylinder, it can pull the piston plate to its initial position inside the piston cylinder via the first pull rope, thereby adjusting the initial vertical distance between the limiting block and the center of the second float.

[0014] Furthermore, it also includes an L-shaped frame fixedly disposed on the side of the tank body, on which a second guide wheel for guiding the second pull rope is rotatably connected.

[0015] Furthermore, the water supply pipe is equipped with a solenoid valve, which closes when the drain pipe drains water.

[0016] The beneficial effects of this invention are analyzed as follows: The automated bird's nest soaking liquid level and endpoint monitoring device includes a tank, a water replenishment mechanism, and a discharge mechanism. The water replenishment mechanism includes a water replenishment pipe connected to the tank, with a rod radially inserted into the end of the pipe. The rod has a water permeability hole. A swing arm is hinged inside the tank, with a first float fixedly connected to one end and a cam fixedly connected to the other end. The sidewall of the cam fits against the bottom end of the rod. When the liquid level in the tank drops, the swing arm swings, causing the cam to rotate and push the rod upwards, thus connecting the water permeability hole with the water replenishment pipe. The discharge mechanism includes a soaking... The container includes a basket, a cover plate installed on the top of the tank, a drain pipe at the bottom, and a waste liquid tank vertically sliding at the bottom of the drain pipe. A first pull rope is installed on the basket, with the other end of the first pull rope connected to the bottom wall of the tank. A first guide wheel for guiding the first pull rope is rotatably connected to the cover plate. A second pull rope is connected between the waste liquid tank and the cover plate. After the bird's nest in the basket is soaked, the drain pipe drains water into the waste liquid tank. The waste liquid tank moves down and pulls the cover plate up through the second pull rope. The cover plate pulls the basket through the first pull rope, thereby lifting the basket out of the tank.

[0017] First, soaking water is added to the tank. After placing the bird's nest in the soaking basket, the cover is closed. During the soaking process, the liquid level drops due to the bird's nest absorbing water and water evaporation. The first float sinks and drives the swing arm to swing. The cam rotates with the swing arm and pushes the insert rod upward, connecting the water permeable hole with the water replenishment pipe to achieve automatic water replenishment and maintain a stable liquid level. After soaking, the drain pipe drains water into the waste liquid tank. The waste liquid tank moves downward under gravity and pulls the cover plate upward through the second pull rope. The cover plate then lifts the soaking basket out of the tank through the first pull rope, achieving automatic water replenishment and automatic unloading. The entire process is highly automated with minimal human intervention. At the same time, the device also monitors the liquid level through the floating of the first float and monitors the end of the soaking process through the automatic drainage of the drain pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the waste liquid tank of the present invention; Figure 3 A cross-sectional view of the tank body of the present invention. Figure 1 ; Figure 4 A cross-sectional view of the tank body of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the structure of the foaming basket of the present invention; Figure 6 This is a schematic diagram of the piston assembly of the present invention; Figure 7 This is a schematic diagram of the structure of the second float in this invention.

[0019] In the diagram: 100, Tank body; 110, Cover plate; 200, Water supply pipe; 210, Solenoid valve; 220, Insert rod; 221, Limiting plate; 222, First tension spring; 223, Water inlet; 230, Mounting shaft; 240, Cam; 250, Swing rod; 260, First float; 300, Foaming basket; 310, N-shaped frame; 320, Pressure plate; 330, Threaded cylinder; 340, Threaded rod; 400, Waste liquid tank; 41 0. Second pull rope; 420. L-shaped frame; 421. Second guide wheel; 430. First pull rope; 431. First guide wheel; 440. Piston cylinder; 441. Piston rod; 442. Piston plate; 443. Second tension spring; 450. Passive cylinder; 451. Limit block; 452. Air pipe; 460. Drain pipe; 470. Valve stem; 471. Leakage hole; 480. Second float; 481. Cylindrical rod; 482. Protrusion. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Examples, such as Figures 1-7 As shown, the automated bird's nest soaking liquid level and endpoint monitoring device includes a tank 100, a water replenishment mechanism, and a discharge mechanism. The water replenishment mechanism includes a water replenishment pipe 200 connected to the tank 100, with a rod 220 radially inserted into the end of the water replenishment pipe 200. A water permeable hole 223 is provided on the rod 220. A swing rod 250 is hinged inside the tank 100. One end of the swing rod 250 is fixedly connected to a first float 260, and the other end is fixedly connected to a cam 240. The side wall of the cam 240 is in contact with the bottom end of the rod 220. When the liquid level in the tank 100 drops, the swing rod 250 swings, causing the cam 240 to rotate and push the rod 220 upwards so that the water permeable hole 223 connects to the water replenishment pipe 200. The discharge mechanism includes a soaking basket 300 installed in the tank. The tank 100 has a cover plate 110 at the top and a drain pipe 460 at the bottom, and a waste liquid tank 400 that is vertically slidably installed at the bottom of the drain pipe 460. A first pull rope 430 is installed on the foaming basket 300, and the other end of the first pull rope 430 is connected to the bottom wall of the tank 100. A first guide wheel 431 for guiding the first pull rope 430 is rotatably connected to the cover plate 110. A second pull rope 410 is connected between the waste liquid tank 400 and the cover plate 110. After the bird's nest in the foaming basket 300 is soaked, the drain pipe 460 drains water into the waste liquid tank 400. The waste liquid tank 400 moves down and pulls the cover plate 110 up through the second pull rope 410. The cover plate 110 pulls the foaming basket 300 through the first pull rope 430, thereby lifting the foaming basket 300 out of the tank 100.

[0022] The working mechanism of the automated bird's nest soaking liquid level and endpoint monitoring device provided in this embodiment is as follows: First, soaking water is added to the tank 100. After placing the bird's nest in the soaking basket 300, the cover plate 110 is closed. During the soaking process, the liquid level drops due to the absorption of water by the bird's nest and the evaporation of water. The first float ball 260 sinks accordingly and drives the swing rod 250 to swing. The cam 240 rotates with the swing rod 250 and pushes the insert rod 220 upward, so that the water permeable hole 223 is connected to the water replenishment pipe 200 to achieve automatic water replenishment and maintain a stable liquid level. After the soaking is completed, the drain pipe 460 drains water into the waste liquid tank 400. The waste liquid tank 400 moves downward under gravity and pulls the cover plate 110 upward through the second pull rope 410. The cover plate 110 then lifts the soaking basket 300 out of the tank 100 through the first pull rope 430, realizing automatic water replenishment and automatic unloading. The whole process is highly automated with little manual intervention. At the same time, the device also monitors the liquid level through the floating of the first float ball 260 and monitors the end of the soaking process through the automatic drainage of the drain pipe 460.

[0023] Among the optional methods in this embodiment, the more preferred one is: The top end of the insertion rod 220 is fixedly connected to a limiting plate 221, and a first tension spring 222 is connected between the limiting plate 221 and the water supply pipe 200; the inner wall of the tank 100 is fixedly connected to an installation shaft 230, and the cam 240 is rotatably connected to the installation shaft 230.

[0024] When the liquid level in the tank 100 rises to the set height, the first float 260 floats up, causing the swing rod 250 and cam 240 to reset. The insertion rod 220 moves downward under the tension of the first tension spring 222, causing the water permeable hole 223 to disconnect from the water supply pipe 200 and stop water supply. The cooperation of the limiting plate 221 and the first tension spring 222 can limit the downward stroke of the insertion rod 220, preventing the insertion rod 220 from disengaging from the water supply pipe 200, thus realizing automatic closed-loop control of the liquid level without the need for manual adjustment of water supply start and stop.

[0025] Among the optional methods in this embodiment, the more preferred one is: An N-shaped frame 310 is installed on the foaming basket 300. A threaded cylinder 330 is inserted into the N-shaped frame 310. A pressure plate 320 is fixedly connected to the bottom end of the threaded cylinder 330, and a threaded rod 340 is threadedly connected to the top end of the threaded rod 340. The end of the first pull rope 430 is fixedly connected to the top end of the threaded rod 340.

[0026] The pressure plate 320 is placed in the soaking basket 300 to press down the bird's nest. After the bird's nest absorbs water and expands, it pushes the pressure plate 320 upward. The pressure plate 320 drives the threaded cylinder 330 and the threaded rod 340 to move upward, thereby releasing the first pull rope 430. The expansion displacement of the bird's nest is converted into a mechanical action signal, realizing the automatic transmission of the soaking state.

[0027] Among the optional methods in this embodiment, the more preferred one is: The soaking basket 300 is an inverted frustum shape. After the pressure plate 320 is placed inside the soaking basket 300, it can contact the inner wall of the soaking basket 300. The space below the pressure plate 320 inside the soaking basket 300 is used to place bird's nest. After the bird's nest is soaked, it can push the pressure plate 320 to move upward, so that the drain pipe 460 can drain the water in the tank 100.

[0028] The bird's nest is placed under the pressure plate 320 to absorb water and expand. It pushes the pressure plate 320 upward along the inner wall of the inverted frustum-shaped soaking basket 300. After the pressure plate 320 moves into place, it triggers drainage, causing the drain pipe 460 to discharge the soaking water in the tank 100. Due to the inverted frustum-shaped design of the soaking basket 300, the pressure plate 320 can contact the inner wall of the soaking basket 300 after being placed in it and will not move downward, thus preventing the initially unsoaked bird's nest from being crushed.

[0029] Among the optional methods in this embodiment, the more preferred one is: A valve stem 470 is inserted into the drain pipe 460. A water leakage hole 471 is opened at the bottom of the valve stem 470, and a cylindrical rod 481 is inserted at the top. A second float ball 480 is fixedly connected to the top of the cylindrical rod 481. A protrusion 482 is provided on the side wall of the cylindrical rod 481. A sliding groove that cooperates with the protrusion 482 is opened in the valve stem 470. A limiting component for limiting the second float ball 480 is provided in the tank body 100. After the pressure plate 320 moves upward, it can drive the limiting component to release the restriction on the second float ball 480, so that the second float ball 480 floats upward. The cylindrical rod 481 moves upward to the valve stem 470. After the cylindrical rod 481 moves upward and the protrusion 482 slides to the top of the sliding groove, it can drive the valve stem 470 to move upward synchronously, thereby opening the drain pipe 460.

[0030] In the initial state, the limiting component restricts the second float 480 from floating. After the pressure plate 320 moves upward, it drives the limiting component to release the restriction on the second float 480. Under the action of buoyancy, the second float 480 floats upward, first driving the cylindrical rod 481 to slide relative to the valve rod 470. After the protrusion 482 reaches the top of the chute, it drives the valve rod 470 to move upward synchronously, so that the drain hole 471 moves to the top of the drain pipe 460. The water in the tank 100 enters the drain pipe 460 through the drain hole 471 for discharge. After the cylindrical rod 481 slides relative to the valve rod 471, it drives the valve rod 470 to move upward, so that the degree of soaking of the bird's nest has an adjustable margin.

[0031] Among the optional methods in this embodiment, the more preferred one is: The limiting component includes a passive cylinder 450. The output end of the passive cylinder 450 is fixedly connected to a limiting block 451. The limiting block 451 abuts against the outer wall of the second float 480, and the contact part between the limiting block 451 and the second float 480 is located at the upper part of the center of the second float 480. When the passive cylinder 450 shortens, the limiting block 451 moves away from the second float 480, thereby causing the second float 480 to float upward.

[0032] When the passive cylinder 450 extends, the limiting block 451 presses against the second float 480 from above the center, restricting its upward movement. When the passive cylinder 450 retracts, the limiting block 451 moves away from the second float 480, releasing the limiting and allowing the second float 480 to float normally, thus achieving automatic locking and unlocking. As the bird's nest expands, the passive cylinder 450 gradually shortens. As the limiting block 451 gradually follows the shortening of the passive cylinder 450, the second float 480 is gradually lifted by buoyancy until the limiting block 451 completely disengages from the second float 480, after which the second float 480 floats completely upward.

[0033] Among the optional methods in this embodiment, the more preferred one is: A piston assembly is connected to the first pull rope 430. An air pipe 452 connects the piston assembly and the passive cylinder 450. When the bird's nest is soaked and pushes the pressure plate 320 to move upward, the piston assembly draws air out of the passive cylinder 450, thereby shortening the passive cylinder 450.

[0034] The expansion of the bird's nest pushes the pressure plate 320 upward, which in turn drives the first pull rope 430 to move. The first pull rope 430 drives the piston assembly to draw air from the passive cylinder 450 through the air pipe 452, causing the passive cylinder 450 to shorten and automatically converting the expansion displacement into pneumatic unlocking power.

[0035] Among the optional methods in this embodiment, the more preferred one is: The piston assembly includes a piston cylinder 440 connected to the bottom wall of the tank 100. A piston plate 442 is slidably connected inside the piston cylinder 440. A second tension spring 443 is connected between the lower part of the piston plate 442 and the piston cylinder 440. A piston rod 441 is fixedly connected to the upper part of the piston plate 442. The end of the piston rod 441 passes through the piston cylinder 440 and is fixedly connected to the first pull rope 430. An air pipe 452 communicates with the space above the piston plate 442 inside the piston cylinder 440. When the threaded rod 340 moves axially relative to the threaded cylinder 330, it can pull the piston plate 442 to the initial position inside the piston cylinder 440 through the first pull rope 430, thereby adjusting the initial vertical distance between the limiting block 451 and the center of the second float 480.

[0036] By rotating the threaded rod 340 to adjust its axial position relative to the threaded cylinder 330, the tension applied by the first pull rope 430 to the piston plate 442 is changed, thereby setting the initial position of the piston plate 442 and adjusting the trigger height of the soaking endpoint. During soaking, the first pull rope 430 is relaxed, and the second tension spring 443 pulls the piston plate 442 down to draw air, shortening the passive cylinder 450, which flexibly adapts to different bird's nest soaking requirements.

[0037] Among the optional methods in this embodiment, the more preferred one is: It also includes an L-shaped frame 420 fixedly installed on the side of the tank body 100, and a second guide wheel 421 for guiding the second pull rope 410 is rotatably connected to the L-shaped frame 420.

[0038] When the waste liquid tank 400 moves down, it pulls the second pull rope 410. The second guide wheel 421 rotates with the movement of the pull rope, and the second guide wheel 421 can change the transmission direction of the second pull rope 410, so as to smoothly transmit the pulling force to the cover plate 110, optimize the transmission path, and reduce resistance.

[0039] Among the optional methods in this embodiment, the more preferred one is: A solenoid valve 210 is installed on the water supply pipe 200, and the solenoid valve 210 is closed when the drain pipe 460 drains water.

[0040] During the soaking process, solenoid valve 210 opens, allowing water supply pipe 200 to replenish water normally; when drain pipe 460 drains water, solenoid valve 210 closes simultaneously to stop water replenishment, thus avoiding incomplete drainage caused by simultaneous draining and replenishment.

[0041] The lower part of the waste liquid tank 400 can be equipped with an elastic support structure, such as a spring or a cylinder; After the waste liquid tank 400 has collected the waste liquid, the previous soaking basket 300 is removed and a new soaking basket 300 is placed in it. The soaking basket 300 can be connected to the first pull rope 430 by a rope buckle, or the soaking basket 300 can be disassembled by removing the threaded rod 340 from the threaded cylinder 330. After the new soaking basket 300 is installed, the water in the waste liquid tank 400 is drained. Then, the waste liquid tank 400 moves upward and resets under the action of the elastic support structure. The cover plate 110 is closed again on the top of the tank body 100. The soaking basket 300 continues to move downward. The passive cylinder 450 extends again to lock the second float ball 480. The device can then enter the next round of bird's nest soaking operation. The whole process only requires manual loading and unloading. The remaining water replenishment, liquid level monitoring, soaking endpoint judgment, drainage and unloading operations can all be completed automatically, which effectively reduces the intensity of manual labor and ensures that the soaking degree is uniform and consistent, thus improving the standardization of bird's nest soaking and processing.

[0042] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid level and endpoint monitoring device for automated soaking of bird's nest, characterized in that: Includes tank body (100), water replenishment mechanism and unloading mechanism; The water replenishment mechanism includes a water replenishment pipe (200) connected to the tank (100), a rod (220) is radially inserted into the end of the water replenishment pipe (200), a water permeable hole (223) is provided on the rod (220), a rocker arm (250) is hinged inside the tank (100), a first float (260) is fixedly connected to one end of the rocker arm (250), and a cam (240) is fixedly connected to the other end. The side wall of the cam (240) is in contact with the bottom end of the rod (220). When the liquid level in the tank (100) drops, the rocker arm (250) swings, thereby the cam (240) rotates and pushes the rod (220) upward so that the water permeable hole (223) is connected to the water replenishment pipe (200); The unloading mechanism includes a foaming basket (300), a cover plate (110) installed on the top of the tank (100) and a drain pipe (460) at the bottom, and a waste liquid tank (400) vertically slidably disposed at the bottom of the drain pipe (460). A first pull rope (430) is installed on the soaking basket (300), and the other end of the first pull rope (430) is connected to the bottom wall of the tank (100). A first guide wheel (431) for guiding the first pull rope (430) is rotatably connected to the cover plate (110). A second pull rope (410) is connected between the waste liquid tank (400) and the cover plate (110). After the bird's nest in the soaking basket (300) is soaked, the drain pipe (460) drains water into the waste liquid tank (400). The waste liquid tank (400) moves down and pulls the cover plate (110) up through the second pull rope (410). The cover plate (110) pulls the first pull rope (430) through the first pull rope (430), thereby lifting the soaking basket (300) out of the tank (100).

2. The automated bird's nest soaking liquid level and endpoint monitoring device according to claim 1, characterized in that: The top end of the insertion rod (220) is fixedly connected to a limiting plate (221), and a first tension spring (222) is connected between the limiting plate (221) and the water supply pipe (200). The inner wall of the tank (100) is fixedly connected to the mounting shaft (230), and the cam (240) is rotatably connected to the mounting shaft (230).

3. The automated bird's nest soaking liquid level and endpoint monitoring device according to claim 2, characterized in that: An N-shaped frame (310) is installed on the foaming basket (300), and a threaded cylinder (330) is inserted into the N-shaped frame (310). A pressure plate (320) is fixedly connected to the bottom end of the threaded cylinder (330), and a threaded rod (340) is threadedly connected to the top end of the threaded rod (340). The end of the first pull rope (430) is fixedly connected to the top end of the threaded rod (340).

4. The automated bird's nest soaking liquid level and endpoint monitoring device according to claim 3, characterized in that: The soaking basket (300) is in the shape of an inverted frustum. After the pressure plate (320) is placed in the soaking basket (300), it can contact the inner wall of the soaking basket (300). The space in the lower part of the soaking basket (300) below the pressure plate (320) is used to place bird's nest. After the bird's nest is soaked, it can push the pressure plate (320) to move upward, so that the drain pipe (460) will drain the water in the tank (100).

5. The automated bird's nest soaking liquid level and endpoint monitoring device according to claim 4, characterized in that: A valve stem (470) is inserted into the drain pipe (460). A drain hole (471) is provided at the bottom of the valve stem (470), and a cylindrical rod (481) is inserted at the top. A second float (480) is fixedly connected to the top of the cylindrical rod (481). A protrusion (482) is provided on the side wall of the cylindrical rod (481). A sliding groove that mates with the protrusion (482) is provided inside the valve stem (470). The tank body (100) is provided with a device for limiting the second float. The limiting assembly of the second float (480) can drive the limiting assembly to release the restriction on the second float (480) after the pressure plate (320) moves upward, so that the second float (480) floats upward, the cylindrical rod (481) moves upward to the valve rod (470), and after the cylindrical rod (481) moves upward so that the protrusion (482) slides to the top of the groove, it can drive the valve rod (470) to move upward synchronously, thereby opening the drain pipe (460).

6. The automated bird's nest soaking liquid level and endpoint monitoring device according to claim 5, characterized in that: The limiting component includes a passive cylinder (450), the output end of which is fixedly connected to a limiting block (451). The limiting block (451) abuts against the outer wall of the second float (480), and the contact part between the limiting block (451) and the second float (480) is located at the upper part of the center of the second float (480). When the passive cylinder (450) shortens, the limiting block (451) moves away from the second float (480), thereby causing the second float (480) to float upward.

7. The automated bird's nest soaking liquid level and endpoint monitoring device according to claim 6, characterized in that: A piston assembly is connected to the first pull rope (430), and an air pipe (452) is connected between the piston assembly and the passive cylinder (450). When the bird's nest is soaked and pushes the pressure plate (320) to move upward, the piston assembly draws air from the passive cylinder (450), thereby shortening the passive cylinder (450).

8. The automated bird's nest soaking liquid level and endpoint monitoring device according to claim 7, characterized in that: The piston assembly includes a piston cylinder (440) connected to the bottom wall of the tank (100), a piston plate (442) slidably connected inside the piston cylinder (440), a second tension spring (443) connected between the lower part of the piston plate (442) and the piston cylinder (440), a piston rod (441) fixedly connected to the upper part of the piston plate (442), the end of the piston rod (441) passing through the piston cylinder (440) and fixedly connected to the first pull rope (430), and the air pipe (452) communicating with the space inside the piston cylinder (440) located above the piston plate (442); When the threaded rod (340) moves axially relative to the threaded cylinder (330), it can pull the piston plate (442) to the initial position inside the piston cylinder (440) through the first pull rope (430), thereby adjusting the initial vertical distance between the limiting block (451) and the center of the second float (480).

9. The automated bird's nest soaking liquid level and endpoint monitoring device according to claim 1, characterized in that: It also includes an L-shaped frame (420) fixedly disposed on the side of the tank body (100), and a second guide wheel (421) for guiding the second pull rope (410) is rotatably connected to the L-shaped frame (420).

10. The automated bird's nest soaking liquid level and endpoint monitoring device according to claim 1, characterized in that: The water supply pipe (200) is equipped with a solenoid valve (210), which is closed when the drain pipe (460) drains water.

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