Automatic drainage device controlled by PLC (Programmable Logic Controller)

Abstract

The utility model provides an automatic drainage device controlled by a programmable logic controller (PLC), and relates to the field of PLCs. The PLC-controlled automatic drainage device comprises a sewage pool and a main body placing frame, one side of the main body placing frame is fixedly connected with a position control shell, the inner wall of the position control shell is slidably connected with a threaded cylinder, the threaded cylinder is fixedly connected with a displacement sensor through an extension plate, and the inner wall of the threaded cylinder is in threaded connection with the outer circumferential surface of a first one-way lead screw; one end of the first one-way lead screw is fixedly connected with an external rotating disc, and the first one-way lead screw is rotationally connected to the inner wall of the position control shell. According to the automatic drainage device controlled by the PLC, through the arrangement of the sewage pool, the main body placement frame, the position control shell, the threaded cylinder, the extension plate, a displacement sensor, a one-way screw rod I, an external rotating disc, a position control rod, a displacement disc, a guide single rod, a floating ball and a position control block, drainage operation can be effectively and automatically carried out according to the real-time water level, so that it is guaranteed that the overflow phenomenon of the sewage pool does not occur; and the safety effect is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drainage device, concretely to a PLC control automatic drainage device belongs to PLC technical field. BACKGROUND

[0002] PLC is a kind of digital operation electronic system specially designed for industrial environment, it uses programmable memory to store the instructions of logic operation, sequence control, timing, counting and arithmetic operation etc., and controls various mechanical equipment or production process through digital or analog input and output.

[0003] Through the retrieval, the China patent with publication number CN217974742U discloses an industrial sewage pool drainage device, including support base plate, the middle part of support base plate is inserted with drainage channel, the top center of support base plate is equipped with rotary disc, the surface middle part of rotary disc is equipped with external gear, the side of external gear is equipped with driving part, the middle part of rotary disc is equipped with the center through hole being communicated with drainage channel, the upper part of center through hole inner wall is equipped with recess, the recess is equipped with opening and closing device, the center through hole is embedded with sewage pool. Advantage: avoid the blockage phenomenon in the process of sewage pool drainage caused by long-time precipitation of sediment and impurities or waste, effectively solve the problem of drainage dredging.

[0004] Although the above scheme can effectively solve the problem of drainage dredging, the drainage device in the above patent is difficult to automatically carry out drainage operation according to real-time water level, because sewage pool is generally arranged outdoors, when encountering heavy rain weather, the water level of sewage pool will rise, and overflow problem is prone to occur, which will cause pollution to the surrounding environment, therefore, we provide a PLC control automatic drainage device to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the above problems and provides a PLC control automatic drainage device to solve the problem of difficult drainage operation according to real-time water level in the above-mentioned comparative document.

[0006] The utility model is realized by the following technical scheme: a PLC control automatic drainage device, including sewage pool and main body placing frame, the side of main body placing frame is fixedly connected with control position shell, the inner wall of control position shell is slidably connected with screw thread cylinder, screw thread cylinder is fixedly connected with displacement sensor through extension plate, the inner wall of screw thread cylinder is screw connected with the outer circumference surface of one-way screw rod one, one end of one-way screw rod one is fixedly connected with external rotary disc, one-way screw rod one is rotatably connected on the inner wall of control position shell, the outer circumference surface of screw thread cylinder is fixedly connected with control position rod, control position rod is slidably connected on the inner wall of control position shell, the close cooperation between parts can adjust the water level of sewage discharge.

[0007] Preferably, the displacement sensor is provided below the displacement disc, and the displacement disc is fixedly connected with a floating ball through a guide single rod.

[0008] Preferably, the outer circumferential surface of the guide single rod is slidingly connected to the inner wall of the control block, and one end of the control block is fixedly connected to the outer circumferential surface of the control shell.

[0009] Preferably, the outer circumferential surface of the guide single rod is slidingly connected to the inner wall of the control block, and one end of the control block is fixedly connected to the outer circumferential surface of the control shell.

[0010] Preferably, the outer circumferential surface of the guide single rod is slidingly connected to the inner wall of the control block, and one end of the control block is fixedly connected to the outer circumferential surface of the control shell.

[0011] Preferably, the outer circumferential surface of the guide single rod is slidingly connected to the inner wall of the control block, and one end of the control block is fixedly connected to the outer circumferential surface of the control shell.

[0012] Preferably, the outer circumferential surface of the guide single rod is slidingly connected to the inner wall of the control block, and one end of the control block is fixedly connected to the outer circumferential surface of the control shell.

[0013] Preferably, the outer circumferential surface of the guide single rod is slidingly connected to the inner wall of the control block, and one end of the control block is fixedly connected to the outer circumferential surface of the control shell.

[0014] The utility model provides a kind of PLC control automatic drainage device, it has the beneficial effects as follows:

[0015] 1, the PLC control automatic drainage device, through the setting of sewage pool, main body placing rack, control shell, threaded cylinder, extension plate, displacement sensor, one-way screw rod one, external turntable, control rod, displacement disc, guide single rod, floating ball, control block, can effectively carry out drainage operation according to real-time water level automatically, so as to ensure that sewage pool does not appear overflow phenomenon, enhances its safety effect.

[0016] 2, the PLC control automatic drainage device, through the setting of protective housing, one-way worm, plane worm wheel, one-way screw rod two, clamping plate, rubber non-slip pad, PLC controller, electric regulating valve, flow sensor, can automatically adjust the size of drainage flow according to water level rising situation, so that the drainage device is more practical, and convenient for staff disassembly and maintenance.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the inside three-dimensional structure schematic diagram of sewage pool of the utility model;

[0019] Figure 3 It is the inside three-dimensional structure schematic diagram of main body placing frame of the utility model;

[0020] Figure 4 It is the inside three-dimensional structure schematic diagram of control position shell of the utility model;

[0021] Figure 5 It is the inside three-dimensional structure schematic diagram of protection shell of the utility model.

[0022]

MAIN COMPONENT SYMBOL EXPLANATION

[0023] 1, sewage pool;2, main body placing frame;3, control position shell;4, threaded cylinder;5, extension plate;6, displacement sensor;7, one-way screw rod one;8, external turntable;9, control position rod;10, displacement disc;11, guide single rod;12, floating ball;13, control position block;14, protection shell;15, one-way worm;16, plane worm wheel;17, one-way screw rod two;18, clamping plate;19, rubber non-slip pad;20, PLC controller;21, electric regulating valve;22, flow sensor. DETAILED DESCRIPTION

[0024] The utility model embodiment provides a kind of PLC control automatic drainage device.

[0025] Please refer to Figure 1 Including sewage pool 1 and main body placing frame 2, the side of sewage pool 1 is fixedly connected with PLC controller 20, sewage pool 1 is communicated with electric regulating valve 21, electric regulating valve 21 is fixedly connected with flow sensor 22, PLC controller 20 mainly includes equips analog output module, analog output module drives electric regulating valve 21, according to set value real-time adjustment electric regulating valve 21 opening, and flow sensor 22 real-time detection flow, PLC controller 20 is controlled by PID algorithm closed loop, corrects electric regulating valve 21 opening, reduces the error of set value and actual value, and electric regulating valve 21 supports continuous adjustment, and it is not simple on-off valve, while PLC controller 20 can receive the signal from displacement sensor 6, PLC controller 20, electric regulating valve 21 and flow sensor 22 are prior art, not too much elaboration.

[0026] Please refer to Figure 3 And Figure 5The end of the main placing frame 2 is fixedly connected with a protective shell 14. The protective shell 14 can effectively protect the internal components, so that the internal components are not disturbed by the outside world. The inner wall of the protective shell 14 is rotatably connected with a one-way worm 15. The protective shell 14 supports the one-way worm 15 and applies a control effect, so that the one-way worm 15 can rotate in place. The threads on the outer circumference of the one-way worm 15 are meshed with the teeth on the outer circumference of a plane worm wheel 16. The close cooperation between the one-way worm 15 and the plane worm wheel 16 can effectively realize the force transmission effect and has a self-locking effect, ensuring the stability of the subsequent components after moving.

[0027] Please refer to Figure 1 and Figure 5 The plane worm wheel 16 is fixedly connected to the outer circumference of a one-way lead screw two 17. The plane worm wheel 16 and the one-way lead screw two 17 maintain a linkage effect. The outer circumference of the one-way lead screw two 17 is threadedly connected with the inner wall of a clamping plate 18. The clamping plate 18 is slidingly connected in the groove of the main placing frame 2. The main placing frame 2 applies a control effect to the clamping plate 18, so that the clamping plate 18 can be effectively driven to translate when the one-way lead screw two 17 rotates. One side of the clamping plate 18 is fixedly connected with a rubber non-slip pad 19. The clamping plate 18 and the rubber non-slip pad 19 maintain a linkage effect. One side of the rubber non-slip pad 19 is provided with anti-slip lines. The setting of the rubber non-slip pad 19 can ensure that the clamping plate 18 clamps the sewage pool 1 and strengthens the clamping effect by increasing the friction.

[0028] Please refer to Figure 3 , Figure 4 and Figure 5 The outer circumference of the one-way lead screw two 17 is rotatably connected with the main placing frame 2. The main placing frame 2 supports the one-way lead screw two 17 and applies a control effect, so that the one-way lead screw two 17 can rotate in place. One side of the main placing frame 2 is fixedly connected with a control housing 3. The inner wall of the control housing 3 is slidingly connected with a threaded cylinder 4. The setting of the control housing 3 can effectively apply a control effect to the one-way lead screw one 7, so that the one-way lead screw one 7 can rotate in place.

[0029] Please refer to Figure 3 and Figure 4 The threaded cylinder 4 is fixedly connected with a displacement sensor 6 through an extension plate 5. A displacement disc 10 is arranged directly below the displacement sensor 6. The close cooperation between the displacement sensor 6 and the displacement disc 10 enables the displacement sensor 6 to send a signal to a PLC controller 20 when the displacement disc 10 moves into the sensing range of the displacement sensor 6, so that the PLC controller 20 controls an electric regulating valve 21 to open and starts the drainage work, so that the sewage is discharged into the sewer, avoiding the overflow of the sewage pool 1 and thereby causing pollution to the surrounding environment.

[0030] Please refer to Figure 3 , the displacement disc 10 is fixedly connected with the floating ball 12 through the guide single rod 11, the displacement disc 10, the guide single rod 11 and the floating ball 12 keep linkage effect, the floating ball 12 is always on the water surface, when the sewage pool 1 water level rises, the floating ball 12 will rise synchronously, thereby through the guide single rod 11, the displacement disc 10 is close to the displacement inductor 6, the outer circumferential surface of the guide single rod 11 is slidingly connected to the inner wall of the control block 13, one end of the control block 13 is fixedly connected to the outer circumferential surface of the control housing 3, the purpose of setting the control block 13 is to apply the control effect to the guide single rod 11, so that the guide single rod 11 can only vertically lift and move, thereby ensuring the stability of the floating ball 12 and the displacement disc 10.

[0031] Please refer to Figure 3 and Figure 4 , the inner wall of the threaded cylinder 4 is threadedly connected with the outer circumferential surface of the one-way screw rod 7, one end of the one-way screw rod 7 is fixedly connected with the external turntable 8, the one-way screw rod 7 is rotatably connected to the inner wall of the control housing 3, the close cooperation between the threaded cylinder 4 and the one-way screw rod 7, when the threaded cylinder 4 keeps stable, the rotation of the one-way screw rod 7 can effectively drive the threaded cylinder 4 to move up and down, and adjust the distance between the displacement inductor 6 and the displacement disc 10 through the extension plate 5, so that the timing of automatically discharging sewage in the sewage pool 1 can be set in advance.

[0032] Please refer to Figure 4 , the outer circumferential surface of the threaded cylinder 4 is fixedly connected with the control rod 9, the control rod 9 is slidingly connected to the inner wall of the control housing 3, the purpose of setting the control rod 9 is to cooperate with the control housing 3 to ensure the stability of the threaded cylinder 4, so that the threaded cylinder 4 can only move up and down.

[0033] Working principle: in use, when the sewage pool 1 water level rises, the floating ball 12 will be through the guide single rod 11 under the restriction of control block 13, synchronous belt driven displacement disc 10 rises, so that the displacement disc 10 close to displacement sensor 6, when the displacement disc 10 into the displacement sensor 6 sensing range, displacement sensor 6 will send a signal to PLC controller 20, PLC controller 20 after processing sends a signal to electric regulating valve 21, so that the electric regulating valve 21 open, thereby discharging sewage pool 1 sewage, make sewage pool 1 sewage to restore to the pre water level, when displacement disc 10 closer to displacement sensor 6, the electric regulating valve 21 discharge capacity will be greater, so as to achieve the effect of automatic drainage, when need to adjust the sewage discharge water level, only need to rotate the external turntable 8 by hand, drive unidirectional screw rod 7 rotation, at this time because the control position rod 9 combined with the screw cylinder 4 will be limited by the control position shell 3, so the unidirectional screw rod 7 will be through the extension plate 5 drive displacement sensor 6 to move upwards, namely can increase the distance between displacement sensor 6 and displacement disc 10, by increasing the displacement disc 10 travel distance, adjust the sewage discharge timing purposes, and through the manual rotation of unidirectional worm 15, under the action of plane worm wheel 16, drive unidirectional screw rod 17 in the main body placement frame 2 in situ rotation, so that the clamping plate 18 drive rubber non-slip pad 19 synchronous movement, make rubber non-slip pad 19 away from the side of sewage pool 1, namely can remove the restriction of sewage pool 1, achieve the purpose of convenient disassembly and assembly parts, convenient maintenance.

[0034] The basic principle and main features of the present application are shown and described above, and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A PLC controlled automatic draining device comprising a sewage tank (1) and a main body placing rack (2), characterized in that: The side of the main body rack (2) is fixedly connected with a control position shell (3), the inner wall of the control position shell (3) is slidably connected with a threaded cylinder (4), the threaded cylinder (4) is fixedly connected with a displacement sensor (6) through an extension plate (5), the inner wall of the threaded cylinder (4) is threadedly connected with the outer circumferential surface of a one-way lead screw (7), one end of the one-way lead screw (7) is fixedly connected with an external turntable (8), the one-way lead screw (7) is rotatably connected to the inner wall of the control position shell (3), the outer circumferential surface of the threaded cylinder (4) is fixedly connected with a control position rod (9), and the control position rod (9) is slidably connected to the inner wall of the control position shell (3).

2. The PLC controlled automatic draining device according to claim 1, characterized in that: The displacement sensor (6) is provided below the displacement disc (10), and the displacement disc (10) is fixedly connected with a floating ball (12) through a guide single rod (11).

3. The PLC controlled automatic draining device according to claim 2, characterized in that: The outer circumferential surface of the guide single rod (11) is slidably connected to the inner wall of the control position block (13), and one end of the control position block (13) is fixedly connected to the outer circumferential surface of the control position shell (3).

4. The PLC controlled automatic draining device according to claim 1, characterized in that: One end of the main body rack (2) is fixedly connected with a protection shell (14), and the inner wall of the protection shell (14) is rotatably connected with a one-way worm (15).

5. The PLC controlled automatic draining device according to claim 4, characterized in that: The threads on the outer circumferential surface of the one-way worm (15) are engaged with the teeth on the outer circumferential surface of a plane worm wheel (16), and the plane worm wheel (16) is fixedly connected to the outer circumferential surface of a one-way lead screw (17).

6. The PLC controlled automatic draining device according to claim 5, wherein: The outer circumferential surface of the one-way lead screw (17) is threadedly connected with the inner wall of a clamping plate (18), and the outer circumferential surface of the one-way lead screw (17) is rotatably connected with the main body rack (2).

7. The PLC controlled automatic draining device according to claim 6, characterized in that: The clamping plate (18) is slidably connected in the groove of the main body rack (2), and one side of the clamping plate (18) is fixedly connected with a rubber non-slip pad (19).

8. The PLC controlled automatic draining device according to claim 1, wherein: One side of the sewage tank (1) is fixedly connected with a PLC controller (20), the sewage tank (1) is in communication with an electric regulating valve (21), and the electric regulating valve (21) is fixedly connected with a flow sensor (22).

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