Stirring machine with accessory recognition system

Abstract

The invention belongs to the technical field of stirrers, and particularly relates to a stirrer with an accessory recognition system.The stirrer comprises a stirrer main machine, a stirrer body and a filter pressing box assembly, a container base is fixedly installed at the top of the stirrer main machine, and a threaded connecting column is fixedly installed at the top of the container base; and a butt joint base is fixedly mounted at the bottom of the stirring machine body and is in threaded connection with the interior of the threaded butt joint column. According to the device, a first displacement sensor monitors the liquid level of a mixture, when the liquid level reaches the specified height, a PLC controls a first electric push rod to be started, so that the first electric push rod drives a horizontal frame to move downwards along a guide sliding rod, then an external force applying rod presses a movable sealing plate downwards, a directional shaft rotates, blocking of a liquid outlet is relieved, and the mixture flows downwards; and the mixture is pumped by the small water pump in the next round, so that the purpose of filtering the mixture in batches is achieved, food residues are discharged, the drinking experience is improved, and the mixture can be taken and used at any time.

Description

Technical Field

[0001] The invention relates to a blender, in particular to a blender with an accessory identification system. Background Art

[0002] A food blender is a small machine that can blend a variety of fruits and vegetables to produce fresh and delicious fruit and vegetable juices; the working principle of a food blender is that the blades at the bottom of the blender cup rotate at high speed, and the food is repeatedly crushed under the action of water flow.

[0003] When processing some slurry-type foods, a filtering device is needed to filter the slurry to remove impurities; however, existing food mixers and filtering devices are generally independent. After the food processing is completed, the mixing barrel on the mixer is removed, and then the material in the mixing barrel is poured into the filtering device for filtering. There are many steps, which reduces the user experience. Summary of the invention

[0004] The main purpose of the present disclosure is to provide a blender with an accessory identification system to effectively solve the problems raised by the inventor in the above background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A blender with an accessory identification system, comprising a blender main unit, a blender body and a filter press box assembly, wherein a container seat is fixedly installed on the top of the blender main unit, and a threaded connecting column is fixedly installed on the top of the container seat, a docking base is fixedly installed on the bottom of the blender body, and the docking base is threadedly connected in the threaded docking column, the docking base and the threaded connecting column are both hollow structures, that is, the inner cavity of the blender body and the inner cavity of the container seat are connected through the hollow cavity of the docking base and the threaded connecting column, the filter press box assembly is fixedly installed on the side of the blender main unit, an identification system is provided between the blender main unit and the blender body, an infusion system is provided between the filter press box assembly and the container seat, and a step-by-step filtration system is provided in the filter press box assembly.

[0007] Preferably, the identification system includes a pressure sensor, a ball, and a PLC controller. The pressure sensor is installed on the top of the container seat, and the contact end of the pressure sensor is movably mounted with a ball, the bottom of the docking base is in contact with the ball, the PLC controller is fixedly mounted on the mixer host, and the pressure sensor is electrically connected to the PLC controller.

[0008] Preferably, the infusion system includes a small water pump and a liquid extraction tube, the small water pump is fixedly installed on the top of the filter press box assembly, and the output end and input end of the small water pump are fixedly connected to the liquid extraction tube, one of the liquid extraction tubes is fixedly connected to the container seat, and the other liquid extraction tube is fixedly connected to the inside of the filter press box assembly.

[0009] Preferably, a sealing slide is slidably installed inside the filter press box assembly, and a filter screen plate is fixedly installed inside the filter press box assembly, the filter screen plate is located below the sealing slide, two symmetrically arranged liquid outlets are provided on the sealing slide, and a directional shaft is rotatably installed on the side wall of each liquid outlet, and a movable sealing plate is fixedly installed on the directional shaft, the movable sealing plate blocks the liquid outlet, and a guide ring is fixedly connected to the side wall of the liquid outlet, and the guide ring is abutted against the top of the movable sealing plate, a torsion spring is sleeved on the directional shaft, and the two ends of the torsion spring are respectively fixedly connected to the inner wall of the liquid outlet and the movable sealing plate, an open storage container is fixedly installed on the inner bottom of the filter press box assembly, and the open storage container is located below the filter screen plate, and the side of the open storage container is fixedly connected with a liquid outlet pipeline extending to the outside of the filter press box assembly.

[0010] Preferably, the step-by-step filter press system includes a first liquid level sensor, a No. 1 electric push rod, a second liquid level sensor, and a No. 2 electric push rod. A support block is inlaid in the middle of the filter screen plate, and a No. 2 electric push rod is fixedly mounted on the support block. The output end of the No. 2 electric push rod is fixedly connected to the bottom of the sealing slide plate. The second liquid level sensor is installed on the inner wall of the filter press box assembly, and the second liquid level sensor is located between the sealing slide plate and the filter screen plate. The second liquid level sensor is electrically connected to the No. 2 electric push rod. The first liquid level sensor is installed on the inner wall of the filter press box assembly and is located above the sealing slide plate. The No. 1 electric push rod is fixedly mounted on the top plate of the filter press box assembly, and the first liquid level sensor is electrically connected to the No. 1 electric push rod.

[0011] Preferably, the output end of the No. 1 electric push rod is fixedly connected to a horizontal frame, a guide slide rod is fixedly connected between the top plate of the filter press box assembly and the filter mesh plate, the sealing slide plate and the horizontal frame are both slidably mounted on the guide slide rod, and an external force applying rod is fixedly connected to the bottom of the horizontal frame, and the bottom end of the external force applying rod extends into the guide ring.

[0012] Preferably, a cleaning port is provided on the side of the filter press box assembly, and movable grooves are provided on the upper and lower walls of the cleaning port, a Z-axis screw is rotatably installed between the two movable grooves, a sliding plug plate is threadedly installed on the Z-axis screw, and the sliding plug plate is slidably installed in the cleaning port and the movable groove, and the sliding plug plate blocks the cleaning port.

[0013] Preferably, the bottom of the sealing slide is fixedly connected to a Z-axis rack, and a linkage shaft is rotatably installed on the side wall of the filter press box assembly. The left end of the linkage shaft is fixedly connected to a circular gear, and the circular gear is meshed with the Z-axis rack. The right end of the linkage shaft extends into the upper movable groove and is fixedly connected to a first bevel gear. A second bevel gear is fixedly installed on the Z-axis screw rod, and the second bevel gear is meshed with the first bevel gear.

[0014] Preferably, the first liquid level sensor, the first electric push rod, the second liquid level sensor, and the second electric push rod are all electrically connected to the PLC controller.

[0015] In view of this, compared with the prior art, the beneficial effects of the present invention are:

[0016] (i) In the present application, the mixer body is installed on the mixer host, that is, the docking base is screwed onto the threaded connection column. At this time, the bottom of the docking base will squeeze the ball, so that the pressure sensor detects the pressure, thereby identifying the position of the mixer body, indicating that it is installed in place and can be used afterwards. When the mixer body is not identified, the mixer is in a stopped state.

[0017] (ii) In the present application, food is placed in the mixer body to be stirred and mixed. After the stirring is completed, the small water pump is turned on to pump the mixture into the filter press assembly, that is, initially stored above the sealing slide. The first displacement sensor monitors the liquid level of the mixture. When it reaches the specified height, the PLC controller controls the No. 1 electric push rod to start, so that it drives the horizontal frame to move down along the guide slide bar, and then the external force application rod presses down the movable sealing plate to rotate the directional shaft to release the blockage of the liquid outlet. The mixture will flow downward until the mixture above the sealing slide is emptied, so that the small water pump can extract the mixture in the next round, so that the mixture can be filtered in batches to discharge food residues, improve the drinking experience, and be used as needed.

[0018] (III) In the present application, when the second liquid level sensor detects that the liquid level below the sealing slide plate is high, the second electric push rod will drive the sealing slide plate to move downward, so that the sealing slide plate squeezes the mixture on the filter plate and squeezes out the liquid in the food residue to achieve a better solid-liquid separation effect.

[0019] (IV) In the present application, when the sealing slide plate moves downward, it will drive the Z-axis rack to move downward, and under the meshing transmission with the circular gear, the linkage shaft drives the first bevel gear to rotate, and under the meshing transmission with the second bevel gear, the Z-axis screw rod rotates, and then the sliding plug plate moves to release the blockage of the cleaning port, thereby facilitating the cleaning of food residues on the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1The figure shows a three-dimensional structure diagram of a mixer with an accessory identification system provided by the present invention;

[0021] Figure 2 The figure shows a schematic diagram of a blender with an accessory identification system provided by the present invention after the blender body is removed;

[0022] Figure 3 Shown Figure 2 The enlarged schematic diagram of point A in the middle;

[0023] Figure 4 Shown is a schematic diagram of the internal structure of the filter press box assembly;

[0024] Figure 5 Shown Figure 4 The enlarged schematic diagram of point B in the middle;

[0025] Figure 6 Shown is a schematic diagram of the sealing slide plate after the external force application rod moves downward;

[0026] Figure 7 Shown Figure 4 The enlarged schematic diagram of the center C;

[0027] Figure 8 Shown is the connection diagram of the PLC controller.

[0028] icon:

[0029] 1- mixer host; 101- container seat; 102- threaded connection column; 103- pressure sensor;

[0030] 2-mixer body; 201-docking base;

[0031] 3-filter box assembly; 301-sealing slide plate; 3011-liquid outlet; 3012-directional shaft; 3013-movable sealing plate; 3014-torsion spring; 3015-guide ring; 302-filter screen plate; 303-open storage container; 3031-liquid outlet pipeline; 304-guide slide rod; 305-horizontal frame; 306-external force application rod; 307-cleaning port; 308-sliding plug plate; 309-Z-axis screw rod; 310-Z-axis rack; 311-linkage shaft; 312-circular gear; 313-first bevel gear; 314-second bevel gear;

[0032] 4-PLC controller;

[0033] 5- Small water pump;

[0034] 6- Liquid extraction tube;

[0035] 7- first displacement sensor;

[0036] 8-No. 1 electric push rod;

[0037] 9- Second liquid level sensor;

[0038] 10-No. 2 electric push rod. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-8 , the present invention provides the following embodiments:

[0041] A blender with an accessory identification system comprises a blender main unit 1, a blender body 2 and a filter press box assembly 3, a container seat 101 is fixedly mounted on the top of the blender main unit 1, and a threaded connecting column 102 is fixedly mounted on the top of the container seat 101, a docking base 201 is fixedly mounted on the bottom of the blender body 2, and the docking base 201 is threadedly connected in the threaded docking column, a cover is mounted on the top of the blender body 2, the docking base 201 and the threaded connecting column 102 are both hollow structures, that is, the inner cavity of the blender body 2 is connected to the inner cavity of the container seat 101 through the hollow cavity of the docking base 201 and the threaded connecting column 102, the filter press box assembly 3 is fixedly mounted on the side of the blender main unit 1, an identification system is arranged between the blender main unit 1 and the blender body 2, an infusion system is arranged between the filter press box assembly 3 and the container seat 101, and a step-by-step filtration system is arranged in the filter press box assembly 3.

[0042] Specifically, the identification system includes a pressure sensor 103, a ball, and a PLC controller 4. The pressure sensor 103 is installed on the top of the container seat 101, and a ball is movably installed on the contact end of the pressure sensor 103. The bottom of the docking base 201 is in contact with the ball. The PLC controller 4 is fixedly installed on the mixer host 1, and the pressure sensor 103 is electrically connected to the PLC controller 4.

[0043] Specifically, the infusion system includes a small water pump 5 and a liquid extraction tube 6. The small water pump 5 is fixedly installed on the top of the filter press box assembly 3, and the output end and input end of the small water pump 5 are fixedly connected to the liquid extraction tube 6. One liquid extraction tube 6 is fixedly connected to the container seat 101, and the other liquid extraction tube 6 is fixedly connected to the inside of the filter press box assembly 3.

[0044] Specifically, a sealing slide plate 301 is slidably installed inside the filter press box assembly 3, and a filter screen plate 302 is fixedly installed inside the filter press box assembly 3. The filter screen plate 302 is located below the sealing slide plate 301. The sealing slide plate 301 is provided with two symmetrically arranged liquid outlets 3011. A directional shaft 3012 is rotatably installed on the side wall of each liquid outlet 3011, and a movable sealing plate 3013 is fixedly installed on the directional shaft 3012. The movable sealing plate 3013 blocks the liquid outlet 3011, and the side wall of the liquid outlet 3011 is A guide ring 3015 is fixedly connected, and the guide ring 3015 is against the top of the movable sealing plate 3013, a torsion spring 3014 is sleeved on the directional shaft 3012, and the two ends of the torsion spring 3014 are respectively fixedly connected to the inner wall of the liquid outlet 3011 and the movable sealing plate 3013, an open storage container 303 is fixedly installed on the inner bottom of the filter press box assembly 3, and the open storage container 303 is located below the filter mesh plate 302, and the side of the open storage container 303 is fixedly connected with a liquid outlet pipeline 3031 extending to the outside of the filter press box assembly 3.

[0045] Specifically, the step-by-step filter press system includes a first liquid level sensor 7, a No. 1 electric push rod 8, a second liquid level sensor 9, and a No. 2 electric push rod 10. A support block is inlaid in the middle of the filter screen plate 302, and the No. 2 electric push rod 10 is fixedly installed on the support block. The output end of the No. 2 electric push rod 10 is fixedly connected to the bottom of the sealing slide 301. The second liquid level sensor 9 is installed on the inner wall of the filter press box assembly 3, and the second liquid level sensor 9 is located between the sealing slide 301 and the filter screen plate 302. The second liquid level sensor 9 is electrically connected to the No. 2 electric push rod 10. The first liquid level sensor 7 is installed on the inner wall of the filter press box assembly 3 and is located above the sealing slide 301. The No. 1 electric push rod 8 is fixedly installed on the top plate of the filter press box assembly 3, and the first liquid level sensor 7 is electrically connected to the No. 1 electric push rod 8, the output end of the No. 1 electric push rod 8 is fixedly connected to the horizontal frame 305, and a guide slide bar 304 is fixedly connected between the top plate of the filter press box assembly 3 and the filter mesh plate 302, the sealing slide plate 301 and the horizontal frame 305 are both slidably installed on the guide slide bar 304, the bottom of the horizontal frame 305 is fixedly connected to the external force applying rod 306, and the bottom end of the external force applying rod 306 extends into the guide ring 3015, the first liquid level sensor 7, the No. 1 electric push rod 8, the second liquid level sensor 9, and the No. 2 electric push rod 10 are all electrically connected to the PLC controller 4.

[0046] Specifically, a cleaning port 307 is provided on the side of the filter press box assembly 3, and movable grooves are provided on the upper and lower walls of the cleaning port 307, a Z-axis screw rod 309 is rotatably installed between the two movable grooves, a sliding plug plate 308 is threadedly installed on the Z-axis screw rod 309, and the sliding plug plate 308 is slidably installed in the cleaning port 307 and the movable groove, the sliding plug plate 308 blocks the cleaning port 307, a Z-axis rack 310 is fixedly connected to the bottom of the sealing slide plate 301, a linkage shaft 311 is rotatably installed on the side wall of the filter press box assembly 3, a circular gear 312 is fixedly connected to the left end of the linkage shaft 311, and the circular gear 312 is meshed with the Z-axis rack 310, the right end of the linkage shaft 311 extends into the upper movable groove, and is fixedly connected to a first bevel gear 313, a second bevel gear 314 is fixedly installed on the Z-axis screw rod 309, and the second bevel gear 314 is meshed with the first bevel gear 313.

[0047] The specific implementation of this embodiment is as follows: the mixer body 2 is installed on the mixer host 1, that is, the docking base 201 is screwed on the threaded connection column 102, at which time the bottom of the docking base 201 will squeeze the ball, so that the pressure sensor 103 detects the pressure, thereby identifying the position of the mixer body 2, indicating that it is installed in place and can be used afterwards. If the mixer body 2 is not identified, the mixer is in a stopped state;

[0048] The food is placed in the mixer body 2 to be stirred and mixed. After the stirring is completed, the small water pump 5 is turned on to pump the mixture into the filter press box assembly 3, that is, initially stored above the sealing slide 301. The first displacement sensor 7 monitors the liquid level of the mixture. When it reaches the specified height, the PLC controller 4 controls the No. 1 electric push rod 8 to start, so that it drives the horizontal frame 305 to move down along the guide slide 304, and then the external force application rod 306 presses down the movable sealing plate 3013 to rotate the directional shaft 3012 to release the blockage of the liquid outlet 3011. The mixture will flow downward until the mixture above the sealing slide 301 is emptied, so that the small water pump 5 can extract the mixture in the next round, so that the mixture can be filtered in batches to discharge food residues, improve the drinking experience, and use it as you like.

[0049] The filter screen 302 filters the mixture, leaving the residue on the filter screen 302, and the beverage enters the open storage container 303, and can be taken out by opening the liquid outlet pipe 3031;

[0050] When the second liquid level sensor 9 detects that the liquid level below the sealing slide plate 301 is high, the second electric push rod 10 will drive the sealing slide plate 301 to move downward, so that the sealing slide plate 301 squeezes the mixture on the filter screen plate 302 and squeezes out the liquid in the food residue to achieve a better solid-liquid separation effect;

[0051] When the sealing slide plate 301 moves downward, it will drive the Z-axis rack 310 to move downward. Under the meshing transmission with the circular gear 312, the linkage shaft 311 drives the first bevel gear 313 to rotate. Under the meshing transmission with the second bevel gear 314, the Z-axis screw rod 309 rotates, and then the sliding plug plate 308 moves to release the blockage of the cleaning port 307, thereby facilitating the cleaning of food residues on the filter screen plate 302.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A mixer with an accessory identification system, characterized by: The invention comprises a mixer main unit (1), a mixer body (2) and a filter press box assembly (3); a container seat (101) is fixedly installed on the top of the mixer main unit (1), and a threaded connection column (102) is fixedly installed on the top of the container seat (101); a docking base (201) is fixedly installed on the bottom of the mixer body (2), and the docking base (201) is threadedly connected to the threaded docking column; a cover is installed on the top of the mixer body (2), and the docking base (201) and the threaded connection column are connected to the bottom of the mixer body (2). The columns (102) are all hollow structures, that is, the inner cavity of the mixer body (2) and the inner cavity of the container seat (101) are connected through the docking base (201) and the hollow cavity of the threaded connection column (102); the filter press box assembly (3) is fixedly installed on the side of the mixer main body (1); an identification system is provided between the mixer main body (1) and the mixer body (2); an infusion system is provided between the filter press box assembly (3) and the container seat (101); and a step-by-step filter press system is provided in the filter press box assembly (3).

2. The blender with an accessory identification system according to claim 1, characterized in that: The identification system comprises a pressure sensor (103), a ball, and a PLC controller (4); the pressure sensor (103) is mounted on the top of the container seat (101), and the contact end of the pressure sensor (103) is movably mounted with a ball, the bottom of the docking base (201) is in contact with the ball, the PLC controller (4) is fixedly mounted on the mixer main unit (1), and the pressure sensor (103) is electrically connected to the PLC controller (4).

3. The blender with an accessory identification system according to claim 2, characterized in that: The liquid infusion system comprises a small water pump (5) and a liquid extraction tube (6); the small water pump (5) is fixedly mounted on the top of the filter press box assembly (3); the output end and the input end of the small water pump (5) are both fixedly connected to the liquid extraction tube (6); one of the liquid extraction tubes (6) is fixedly connected to the container seat (101), and the other of the liquid extraction tubes (6) is fixedly connected to the interior of the filter press box assembly (3).

4. The blender with an accessory identification system according to claim 3, characterized in that: A sealing slide plate (301) is slidably mounted inside the filter press box assembly (3), and a filter screen plate (302) is fixedly mounted inside the filter press box assembly (3), the filter screen plate (302) is located below the sealing slide plate (301), two symmetrically arranged liquid outlets (3011) are provided on the sealing slide plate (301), a directional shaft (3012) is rotatably mounted on the side wall of each of the liquid outlets (3011), and a movable sealing plate (3013) is fixedly mounted on the directional shaft (3012), the movable sealing plate (3013) blocks the liquid outlet (3011), and the side wall of the liquid outlet (3011) is rotatably mounted on the side wall of each of the liquid outlets (3011). A guide ring (3015) is fixedly connected, and the guide ring (3015) is against the top of the movable sealing plate (3013); a torsion spring (3014) is sleeved on the directional shaft (3012); the two ends of the torsion spring (3014) are respectively fixedly connected to the inner wall of the liquid outlet (3011) and the movable sealing plate (3013); an open storage container (303) is fixedly installed on the inner bottom of the filter press box assembly (3), and the open storage container (303) is located below the filter screen plate (302); and a liquid outlet pipeline (3031) extending to the outside of the filter press box assembly (3) is fixedly connected to the side of the open storage container (303).

5. The blender with an accessory identification system according to claim 4, characterized in that: The step-by-step filter press system comprises a first liquid level sensor (7), a first electric push rod (8), a second liquid level sensor (9), and a second electric push rod (10); a support block is inlaid in the middle of the filter screen plate (302), and the second electric push rod (10) is fixedly mounted on the support block; an output end of the second electric push rod (10) is fixedly connected to the bottom of the sealing slide plate (301); the second liquid level sensor (9) is mounted on the inner side wall of the filter press box assembly (3), and the second liquid level sensor (9) is located between the sealing slide plate (301) and the filter screen plate (302); the second liquid level sensor (9) is electrically connected to the second electric push rod (10); the first liquid level sensor (7) is mounted on the inner side wall of the filter press box assembly (3), and is located above the sealing slide plate (301); the first electric push rod (8) is fixedly mounted on the top plate of the filter press box assembly (3), and the first liquid level sensor (7) is electrically connected to the first electric push rod (8).

6. The blender with an accessory identification system according to claim 5, characterized in that: The output end of the No. 1 electric push rod (8) is fixedly connected to a horizontal frame (305), a guide slide bar (304) is fixedly connected between the top plate of the filter press box assembly (3) and the filter screen plate (302), the sealing slide plate (301) and the horizontal frame (305) are both slidably mounted on the guide slide bar (304), the bottom of the horizontal frame (305) is fixedly connected to an external force applying rod (306), and the bottom end of the external force applying rod (306) extends into the guide ring (3015).

7. The blender with an accessory identification system according to claim 6, characterized in that: A cleaning port (307) is provided on the side of the filter press box assembly (3), and movable grooves are provided on the upper and lower walls of the cleaning port (307), a Z-axis screw rod (309) is rotatably mounted between the two movable grooves, a sliding plug plate (308) is threadedly mounted on the Z-axis screw rod (309), and the sliding plug plate (308) is slidably mounted in the cleaning port (307) and the movable groove, and the sliding plug plate (308) blocks the cleaning port (307).

8. The blender with an accessory identification system according to claim 7, characterized in that: The bottom of the sealing slide plate (301) is fixedly connected to a Z-axis rack (310); a linkage shaft (311) is rotatably mounted on the side wall of the filter press box assembly (3); a circular gear (312) is fixedly connected to the left end of the linkage shaft (311), and the circular gear (312) is meshed with the Z-axis rack (310); the right end of the linkage shaft (311) extends into the upper movable groove and is fixedly connected to a first bevel gear (313); a second bevel gear (314) is fixedly mounted on the Z-axis screw rod (309), and the second bevel gear (314) is meshed with the first bevel gear (313).

9. The blender with an accessory identification system according to claim 6, characterized in that: The first liquid level sensor (7), the first electric push rod (8), the second liquid level sensor (9), and the second electric push rod (10) are all electrically connected to the PLC controller (4).

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