Visual opening height indicating device for down-hole type plane steel gate

Abstract

The invention discloses a down-the-hole type plane steel gate visual opening height indicating device, and relates to the technical field of gate opening height indicating, the down-the-hole type plane steel gate visual opening height indicating device comprises a front gate frame, a rear gate frame, a front gate leaf and a rear gate leaf, the front gate leaf is connected in the front gate frame, and the rear gate leaf is connected in the rear gate frame; a gate framed bent is connected between the front gate frame and the rear gate frame. According to the visual opening height indicating device for the down-the-hole type plane steel gate, the driving power motor is matched with the driving main shaft to enable the first chain type transmission assembly and the second chain type transmission assembly to move, namely, the transmission connecting plate does lifting motion and correspondingly drives the front gate leaf and the rear gate leaf to synchronously move so as to achieve opening and closing of the gate, and in the process, the front gate leaf and the rear gate leaf are driven to move synchronously. The lifting height of the front gate leaf and the lifting height of the rear gate leaf are accurately measured through the laser material level sensor, data are transmitted to the main control box, the detected data are displayed in real time through the LED display screen, and therefore the opening degree is monitored in real time, and traditional manual reading is replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of gate opening height indication, and specifically to a visualization opening height indication device for a submerged orifice plane steel gate. Background Art

[0002] Submerged orifice plane steel gates are widely used in fields such as water conservancy and hydropower, municipal water supply and drainage, aquaculture, and farmland irrigation. They are the core equipment for regulating water flow and controlling water levels in hydraulic structures. They achieve the functions of water blocking and water discharging through the lifting of the gate leaf, directly affecting the safe operation and dispatching efficiency of water conservancy projects. For example, on the orifices of structures such as overflow dams and bank spillways, submerged orifice plane steel gates need to bear large water head pressures and control the discharge flow by adjusting the opening degree to ensure the realization of functions such as navigation, power generation, and irrigation. However, traditional gate operations rely on manual observation or mechanical indicating devices, which have problems such as low accuracy and poor real-time performance, and are difficult to meet the requirements of modern water conservancy projects for efficient and precise control.

[0003] A gate opening degree monitoring device disclosed in the patent with publication number CN117308737A. The gate opening degree monitoring device includes a monitoring pointer mechanism and an opening degree indicating mechanism; the monitoring pointer mechanism includes a monitoring pointer and a guide rail; the guide rail can be arranged on the wing wall of the sluice, one end of the pointer is arranged at the end of the gate far from the bottom shaft, and the other end is movably arranged in the guide rail; the opening degree indicating mechanism includes a traction structure, an opening degree pointer, and an opening degree scale; the opening degree scale is horizontally arranged and extends along the horizontal direction, and the opening degree pointer is movably matched with the opening degree scale; the opening degree pointer is connected to the monitoring pointer through the traction structure, and the monitoring pointer can drive the opening degree pointer to move synchronously along the length direction of the opening degree scale to measure the opening angle and opening height of the gate. In this way, the measurement of the opening degree of the gate can be completed conveniently and quickly, and the opening degree measurement of both the angle and the height can be completed simultaneously.

[0004] When the above-mentioned prior art is in use, when indicating the opening and closing degrees of the gate, it mainly drives the synchronous rotation of the indicating needle through the flipping of the gate, so as to display the opening and closing degrees of the gate by the indication of the indicating needle. However, it still requires manual observation, which is easily affected by visual angle deviation (such as looking down / up) and light interference (strong light / shadow), resulting in a reading error of ±2 - 5 mm (especially obvious under high-precision working conditions). Moreover, the mechanical indicating device cannot provide real-time data, and the operator cannot timely understand the actual opening and closing state of the gate. Once the mechanical components are damaged, the operator may not be able to discover the problem in time, and the maintenance of mechanical components requires professional tools and skills, which are difficult for ordinary operators to handle by themselves, increasing the maintenance cost of the indicating components. Therefore, corresponding improvements are needed. Summary of the Invention

[0005] The purpose of the present invention is to provide a visualization opening height indicating device for a submersible flat steel gate, so as to solve the problems of poor accuracy of opening height indication and difficult reading in the existing visualization opening height indicating device for a submersible flat steel gate as mentioned in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A visualization opening height indicating device for a submersible flat steel gate, including a front gate frame, a rear gate frame, a front gate leaf, and a rear gate leaf. The front gate leaf is connected inside the front gate frame, and the rear gate leaf is connected inside the rear gate frame;

[0007] A gate bent is connected between the front gate frame and the rear gate frame, and an opening degree control mechanism is arranged at the top of the gate bent. The outside of the front gate frame is connected with a main control box through a support column, and an LED display screen is arranged on the outside of the main control box. A horizontal adjustment component is arranged at the top outside of the front gate frame.

[0008] Further, the opening degree control mechanism includes a power motor, and the power motor is fixed on one side of the top of the rear gate frame. The output shaft end of the power motor is connected with a driving main shaft through a speed reducer. Two first chain drive components and two second chain drive components are respectively sleeved on both ends of the outside of the driving main shaft. Transmission connecting plates are fixed on the outside of the first chain drive components and the second chain drive components. Fixed seats are fixed on both sides of the bottom end of the transmission connecting plate, and the top ends of the fixed seats are respectively connected with the top ends of the front gate leaf and the rear gate leaf.

[0009] Further, rectangular cross-section grooves are formed on both sides of the transmission connecting plate, and notches are formed on one side inside the grooves. The transmission connecting plate is stuck outside the gate bent and is slidably connected with the gate bent.

[0010] Further, both the first chain drive component and the second chain drive component are composed of two sprockets and a longitudinal drive chain. Chain shafts are fixed on both sides inside the gate bent. The sprockets are respectively sleeved on the driving main shaft and the chain shafts, and the longitudinal drive chain is connected between the sprockets.

[0011] Further, a driven gear is fixedly sleeved at one end of the driving main shaft, and a bevel gear meshes with the top of the driven gear. A driven shaft is fixed at the top of the bevel gear, and a double-shaft drive component is connected to one end of the driven shaft.

[0012] Further, the horizontal adjustment component includes an extension wall plate fixed on the outside of the top of the front gate frame. A connecting seat is fixed at one end of the outside of the extension wall plate. A sweeping support frame is fixed at the other end of the outside of the extension wall plate. A support shaft is connected inside the support frame. An auxiliary shaft is connected between the connecting seats, and one end of the auxiliary shaft is connected to one end of the double-shaft drive component.

[0013] Further, a belt linear displacement module is connected between the auxiliary shaft and the support shaft, and an adapter block is sleeved outside the belt linear displacement module. A scanning bracket is fixed to the bottom end of the adapter block. A transverse guide rail is slidably connected to the outside of the scanning bracket, and the transverse guide rail is fixed to the outside of the extension wall plate. A laser level sensor is connected to the bottom end of the scanning bracket.

[0014] Further, the belt linear displacement module includes a driving wheel, a driven wheel and a transmission belt. The driving wheel is sleeved on the auxiliary shaft, the driven wheel is sleeved on the support shaft, and the transmission belt is connected between the driving wheel and the driven wheel.

[0015] Further, the dual-axis drive assembly includes two belt pulleys and a drive belt. The belt pulleys are respectively sleeved on the driven shaft and the auxiliary shaft, and the drive belt is connected between the belt pulleys.

[0016] Further, a PLC controller is arranged in the main control box. The output end of the laser level sensor is electrically connected to the input end of the PLC controller through a wire, and the output end of the PLC controller is electrically connected to the input end of the power motor through a wire.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: When the visualization opening height indication device for the submersible plane steel gate is in use, it can display the opening degree of the plane steel gate, replace manual observation, achieve the effect of high-precision detection, and can synchronously monitor the levelness of the gate to ensure the stability of the gate lifting;

[0018] By driving the power motor to cooperate with the driving main shaft to make the first chain drive assembly and the second chain drive assembly move, that is, to make the transmission connecting plate do a lifting movement, and correspondingly drive the front gate leaf and the rear gate leaf to move synchronously to realize the opening and closing of the gate. During this process, the laser level sensor accurately measures the lifting height of the front gate leaf and the rear gate leaf, transmits the data to the main control box, and displays the detected data in real time through the LED display screen to realize the real-time monitoring of the opening and closing degree, replace the traditional manual reading, with a visual design, obvious opening degree display, avoid manual observation errors, so that in case of emergencies, the operator can quickly obtain the gate state, timely adjust the operation parameters, and use the PLC set in the laser level sensor to realize the automatic adjustment of the gate opening and closing degree, reduce manual intervention, and improve the operation efficiency;

[0019] During the lifting process of the front gate leaf and the rear gate leaf, the driving main shaft rotates to drive the driven gear to rotate synchronously. The driven gear meshes with the bevel gear, causing the bevel gear and the driven shaft to rotate. In cooperation with the double-shaft drive assembly, the auxiliary shaft rotates, enabling the belt linear displacement module to operate. As a result, the connecting block, the scanning bracket, and the laser level sensor can move horizontally. The transverse guide rail is used to limit and guide the horizontal movement of the connecting block. During long-term operation, the front gate leaf and the rear gate leaf may undergo structural deformation due to water pressure and temperature changes, resulting in a lateral offset between the laser level sensor and the measurement point. The lateral movement function of the laser level sensor can automatically adjust the position to ensure measurement accuracy and prevent the front gate leaf and the rear gate leaf from undergoing non-linear deformation in an environment with a high water level difference or strong water flow impact. The laterally moving laser level sensor can dynamically adjust the measurement position to ensure data accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 3 is a sectional three-dimensional structural schematic diagram of the present invention;

[0023] Figure 4 is a sectional three-dimensional structural schematic diagram of the present invention;

[0024] Figure 5 is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 6 of the present invention Figure 1 structural schematic diagram of part A;

[0026] Figure 7 is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 8 is a three-dimensional structural schematic diagram of the opening degree control mechanism of the present invention;

[0028] Figure 9 is a three-dimensional structural schematic diagram of the lateral adjustment assembly of the present invention;

[0029] Figure 10 is a partial three-dimensional structural schematic diagram of the present invention.

[0030] In the figure: 1. Front brake frame; 2. Rear brake frame; 3. Front gate leaf; 4. Rear gate leaf; 5. Gate bent; 6. Opening control mechanism; 601. Power motor; 602. Driving main shaft; 603. First chain drive assembly; 604. Second chain drive assembly; 605. Driven gear; 606. Bevel gear; 607. Driven shaft; 608. Biaxial drive assembly; 609. Auxiliary shaft; 7. Transmission armature plate; 701. Notch; 8. Fixed seat; 9. Main control box; 10. LED display screen; 11. Outer wall panel; 12. Horizontal guide rail; 13. Scanning bracket; 14. Laser level sensor; 15. Support frame; 16. Support shaft; 17. Connecting seat; 18. Belt linear displacement module; 19. Connecting block; 20. Chain shaft. Detailed implementation mode

[0031] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figures 1 - 10 shown:

[0033] Embodiment 1

[0034] In order to solve the problem that it is inconvenient to visually indicate the opening of the gate when the existing technology is used, the following technical solution is announced. The visualization opening height indication device for the submersible plane steel gate includes a front brake frame 1, a rear brake frame 2, a front gate leaf 3, and a rear gate leaf 4. The front gate leaf 3 is connected inside the front brake frame 1, and the rear gate leaf 4 is connected inside the rear brake frame 2. A gate bent 5 is connected between the front brake frame 1 and the rear brake frame 2, and an opening control mechanism 6 is arranged at the top of the gate bent 5. The opening control mechanism 6 includes a power motor 601, and the power motor 601 is fixed on one side of the top of the rear brake frame 2. The output shaft end of the power motor 601 is connected with a driving main shaft 602 through a reducer. Both ends of the outer side of the driving main shaft 602 are respectively sleeved with a first chain drive assembly 603 and a second chain drive assembly 604. Transmission armature plates 7 are fixed on the outer sides of the first chain drive assembly 603 and the second chain drive assembly 604, and fixed seats 8 are fixed on both sides of the bottom end of the transmission armature plate 7. The top ends of the fixed seats 8 are respectively connected with the top ends of the front gate leaf 3 and the rear gate leaf 4. Rectangular grooves are formed on both sides of the transmission armature plate 7, and notches 701 are formed on one side inside the grooves as Figure 1 and Figure 8 , the transmission armature plate 7 is stuck outside the gate bent 5 and is slidably connected with the gate bent 5. Both the first chain drive assembly 603 and the second chain drive assembly 604 are composed of two sprockets and a longitudinal drive chain. Chain shafts 20 are fixed on both sides inside the gate bent 5, the sprockets are respectively sleeved on the driving main shaft 602 and the chain shafts 20, and longitudinal drive chains are connected between the sprockets;

[0035] For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 7 , the down-the-hole type plane steel gate is provided with a front gate leaf 3 and a rear gate leaf 4, which can jointly bear loads such as water pressure, reduce the stress on a single gate plate, and extend the service life of the gate. The front gate leaf 3 and the rear gate leaf 4 are overlapped by a gate bent 5 for the support and installation of the driving member. Then, the driving power motor 601 drives the driving main shaft 602 to rotate. That is, under the combined use of a sprocket and a longitudinal transmission chain, the transmission link plate 7 fixedly sleeved on the longitudinal chain can move up and down. Moreover, the transmission link plate 7 slides on the gate bent 5 to limit and guide the lifting of the transmission link plate 7, so as to realize the opening and closing adjustment of the front gate leaf 3 and the rear gate leaf 4 and achieve flow control. The setting of the notch 701 on the transmission link plate 7 can ensure the normal movement of the longitudinal transmission chain and prevent jamming;

[0036] One end of the driving main shaft 602 is fixedly sleeved with a driven gear 605, and a bevel gear 606 is meshed with the top of the driven gear 605. A driven shaft 607 is fixed to the top of the bevel gear 606, and a double-shaft driving assembly 608 is connected to one end of the driven shaft 607. The double-shaft driving assembly 608 includes two belt pulleys and a driving belt. The belt pulleys are respectively sleeved on the driven shaft 607 and the auxiliary shaft 609, and the driving belt is connected between the belt pulleys;

[0037] For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 When this embodiment is in use, during the lifting process of the front gate leaf 3 and the rear gate leaf 4, the laser level sensor 14 is used to monitor the opening degree of the front gate leaf 3 and the rear gate leaf 4. The laser level sensor 14 irradiates the surfaces of the front gate leaf 3 and the rear gate leaf 4 by emitting a laser beam, and calculates the distance by using the time difference or phase difference of the reflected light. Then, the laser level sensor 14 transmits the monitored information to the main control box 9, and visually displays the monitored information through the LED display screen 10, replacing the traditional manual observation, which is more accurate. Moreover, during the rotation of the driving main shaft 602, the driven gear 605 is driven to rotate synchronously, and the meshing action between the driven gear 605 and the bevel gear 606 enables the driven shaft 607 and the double-shaft driving assembly 608 to operate, providing a driving force for the displacement of the laser level sensor 14, realizing the multi-component operation of a single driving member, and achieving the effects of saving energy and usage costs.

[0038] Embodiment 2

[0039] This embodiment is different from the first embodiment. By setting the lateral adjustment component, the lateral displacement of the laser level sensor 14 can be achieved, so as to flexibly adjust the detection point and ensure the accuracy of detection. Therefore, the following technical solution is disclosed. The outer side of the front brake frame 1 is connected to the main control box 9 through a support column, and an LED display screen 10 is arranged on the outer side of the main control box 9. A PLC controller is arranged in the main control box 9. The output end of the laser level sensor 14 is electrically connected to the input end of the PLC controller through a wire, and the output end of the PLC controller is electrically connected to the input end of the power motor 601 through a wire. A lateral adjustment component is arranged at the top outer side of the front brake frame 1. The lateral adjustment component includes an extension wall plate 11 fixed to the top outer side of the front brake frame 1, and a connecting seat 17 is fixed to one end of the outer side of the extension wall plate 11. A support frame 15 is fixed to the other end of the outer side of the extension wall plate 11, and a support shaft 16 is connected inside the support frame 15. An auxiliary shaft 609 is connected between the connecting seats 17, and one end of the auxiliary shaft 609 is connected to one end of the double-axis drive component 608. A belt linear displacement module 18 is connected between the auxiliary shaft 609 and the support shaft 16, and a connecting block 19 is sleeved on the outer side of the belt linear displacement module 18. A scanning bracket 13 is fixed to the bottom end of the connecting block 19. A lateral guide rail 12 is slidably connected to the outer side of the scanning bracket 13, and the lateral guide rail 12 is fixed to the outer side of the extension wall plate 11. The bottom end of the scanning bracket 13 is connected to the laser level sensor 14. The belt linear displacement module 18 includes a driving wheel, a driven wheel and a transmission belt. The driving wheel is sleeved on the auxiliary shaft 609, the driven wheel is sleeved on the support shaft 16, and a transmission belt is connected between the driving wheel and the driven wheel;

[0040] For details, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 8 、 Figure 9 、 Figure 10, when in use in this embodiment, during the opening and closing process of the gate, the driving main shaft 602 rotates, driving the driven gear 605 to perform a rotational motion. By utilizing the meshing of the driven gear 605 and the bevel gear 606, the bevel gear 606 and the driven shaft 607 are synchronously rotated, and in cooperation with the dual-axis drive assembly 608, the auxiliary shaft 609 performs a rotational motion. Further, in cooperation with the belt linear displacement module 18, i.e., the driving wheel and the driven wheel rotate, causing the transmission belt to operate, and then the connecting block 19 on the transmission belt moves horizontally. The horizontal guide rail 12 limits and guides the movement of the connecting block 19, and then drives the scanning bracket 13 and the laser level sensor 14 to move synchronously. Thus, during the lifting process of the front gate leaf 3 and the rear gate leaf 4, the laser level sensor 14 moves horizontally to adjust the monitoring points of the laser level sensor 14, and then uses the laser level sensor 14 to monitor the horizontal positions of various points of the front gate leaf 3, preventing the front gate leaf 3 and the rear gate leaf 4 from undergoing non-linear deformation under the environment of high water level difference or strong water flow impact, and ensuring that the front gate leaf 3 and the rear gate leaf 4 rise and fall vertically.

[0041] It should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and is a simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the protected content of the present invention. The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0042] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Submerged orifice type plane steel gate visual opening height indicating device, comprising a front gate frame (1), a rear gate frame (2), a front gate leaf (3), and a rear gate leaf (4). The front gate leaf (3) is connected inside the front gate frame (1), and the rear gate leaf (4) is connected inside the rear gate frame (2). It is characterized in that: A gate bent (5) is connected between the front gate frame (1) and the rear gate frame (2), and an opening degree regulating mechanism (6) is arranged at the top of the gate bent (5). The main control box (9) is connected to the outside of the front gate frame (1) through a support column, and an LED display screen (10) is arranged on the outside of the main control box (9). A lateral adjustment component is arranged at the top outside of the front gate frame (1).

2. The visualization opening height indicating device for the down-the-hole type plane steel gate according to claim 1, wherein: The opening degree regulating mechanism (6) includes a power motor (601), and the power motor (601) is fixed on one side of the top of the rear gate frame (2). The output shaft end of the power motor (601) is connected to a driving main shaft (602) through a speed reducer. The first chain drive assembly (603) and the second chain drive assembly (604) are respectively sleeved on both ends of the outside of the driving main shaft (602). Transmission connecting plates (7) are fixed on the outside of the first chain drive assembly (603) and the second chain drive assembly (604). Fixed seats (8) are fixed on both sides of the bottom end of the transmission connecting plate (7). The top ends of the fixed seats (8) are respectively connected to the top ends of the front gate leaf (3) and the rear gate leaf (4).

3. The visualization opening height indicating device for the down-the-hole type plane steel gate according to claim 2, wherein: Rectangular-section grooves are formed on both sides of the transmission connecting plate (7), and notches (701) are formed on one side inside the grooves. The transmission connecting plate (7) is clamped outside the gate bent (5) and is slidably connected to the gate bent (5).

4. The visualization opening height indicating device for the down-the-hole type plane steel gate according to claim 2, wherein: Both the first chain drive assembly (603) and the second chain drive assembly (604) are composed of two sprockets and a longitudinal drive chain. Chain shafts (20) are fixed on both sides inside the gate bent (5). The sprockets are respectively sleeved on the driving main shaft (602) and the chain shafts (20), and the longitudinal drive chain is connected between the sprockets.

5. The visualization opening height indicating device for the down-the-hole type plane steel gate according to claim 2, characterized in that: A driven gear (605) is fixedly sleeved at one end of the driving main shaft (602), and a bevel gear (606) is meshed with the top of the driven gear (605). A driven shaft (607) is fixed at the top of the bevel gear (606), and a double-shaft drive assembly (608) is connected to one end of the driven shaft (607).

6. The visualization opening height indication device for the down-the-hole type plane steel gate according to claim 1, characterized in that: The lateral adjustment component includes an extension wall plate (11) fixed on the outside of the top of the front gate frame (1). A connecting seat (17) is fixed at one end of the outside of the extension wall plate (11). A support frame (15) is fixed at the other end of the outside of the extension wall plate (11). A support shaft (16) is connected inside the support frame (15). An auxiliary shaft (609) is connected between the connecting seats (17), and one end of the auxiliary shaft (609) is connected to one end of the double-shaft drive assembly (608).

7. The visualization opening height indicating device for the down-the-hole type plane steel gate according to claim 6, characterized in that: A belt linear displacement module (18) is connected between the auxiliary shaft (609) and the support shaft (16), and an adapter block (19) is sleeved outside the belt linear displacement module (18). A scanning bracket (13) is fixed to the bottom end of the adapter block (19). A transverse guide rail (12) is slidably connected to the outside of the scanning bracket (13), and the transverse guide rail (12) is fixed to the outside of the extension wall panel (11). A laser level sensor (14) is connected to the bottom end of the scanning bracket (13).

8. The visualization opening height indicating device for the down-the-hole type plane steel gate according to claim 7, wherein: The belt linear displacement module (18) includes a driving wheel, a driven wheel and a transmission belt. The driving wheel is sleeved on the auxiliary shaft (609), the driven wheel is sleeved on the support shaft (16), and the driving belt is connected between the driving wheel and the driven wheel.

9. The visualization opening height indicating device for the down-the-hole type plane steel gate according to claim 5, wherein: The dual-axis drive assembly (608) includes two belt pulleys and a drive belt. The belt pulleys are respectively sleeved on the driven shaft (607) and the auxiliary shaft (609), and the drive belt is connected between the belt pulleys.

10. The visualization opening height indicating device for the down-the-hole type plane steel gate according to claim 1, wherein: A PLC controller is arranged in the main control box (9). The output end of the laser level sensor (14) is electrically connected to the input end of the PLC controller through a wire, and the output end of the PLC controller is electrically connected to the input end of the power motor (601) through a wire.

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