Medium-voltage power line carrier communication device

Abstract

The utility model discloses a medium-voltage power line carrier communication device which comprises a carrier communication box, an auxiliary support frame and a main support frame, the auxiliary support frame and the main support frame are symmetrically fixed on the outer walls of the two sides of the carrier communication box, and an auxiliary transmission shaft and a main transmission shaft are respectively and rotatably arranged in the auxiliary support frame and the main support frame. A gear transmission assembly used for achieving synchronous reverse rotation is arranged between the auxiliary transmission shaft and the main transmission shaft, inverted-U-shaped frames are installed on the outer wall of the auxiliary supporting frame and the outer wall of the main supporting frame in a sliding mode, and gear and rack lifting structures used for driving the inverted-U-shaped frames to ascend and descend are installed on the surfaces of the auxiliary transmission shaft and the main transmission shaft. The automatic lifting function is achieved through the water level sensor, the stepping motor, the main transmission shaft, the gear and rack lifting structure and other components, the communication device box can be effectively prevented from being soaked in water, and therefore equipment damage or short circuit is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of power line carrier communication, in particular to a medium voltage power line carrier communication device. Background Art

[0002] The medium voltage power line carrier communication device is a communication device used in the power system. Its core function is to transmit data and information through the power line to realize remote monitoring, remote control and data acquisition. The structure of the device mainly includes a carrier communication module, a microprocessor unit (MCU), a power module, an interface module and a protection device. The carrier communication module is its core part, including a modulator, a demodulator, a transmitter and a receiver, which are used to modulate and demodulate signals and transmit and receive data on the power line. The microprocessor unit is responsible for controlling and managing the operation of the entire device, including functions such as data processing, protocol conversion and error detection. The power module provides the required power to ensure the stable operation of the device. The interface module is used to connect external systems or devices, such as sensors or monitoring equipment. The protection device is used to protect the device from abnormal conditions in the power system and ensure its safe operation. However, at this stage, the medium-voltage power line carrier communication device is generally arranged on the ground in an assembled state of a box to ensure easy installation and maintenance, and convenient access to the cables and equipment of the power system. However, when the ground water level rises rapidly, the inside of the box is easily penetrated and invaded by water, and the circuit components inside the device are very sensitive to moisture. If water enters the inside of the box, it is easy to cause circuit short circuits, component damage or even equipment failure, thereby affecting the normal operation of the communication device and the stability of the power system. This problem will be more serious, especially under extreme weather conditions such as heavy rain or floods. Utility Model Content

[0003] The purpose of the utility model is to provide a medium-voltage power line carrier communication device, which has a water level sensing function and can quickly lift the carrier communication box by itself when the water level rises, so that the carrier communication box is always above the liquid surface within a certain height range, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a medium-voltage power line carrier communication device, comprising a carrier communication box and a secondary support frame and a main support frame symmetrically fixed on the outer walls on both sides of the carrier communication box, the secondary support frame and the main support frame are respectively rotatably installed with a secondary transmission shaft and a main transmission shaft inside, a gear transmission assembly for realizing synchronous reverse rotation is arranged between the secondary transmission shaft and the main transmission shaft, an inverted U-shaped frame is slidably installed on the outer walls of the secondary support frame and the main support frame, and a gear rack lifting structure for driving the inverted U-shaped frame to lift and lower is installed on the surface of the secondary transmission shaft and the main transmission shaft, a back frame is fixed on the back of the main support frame, and a stepper motor for driving the main transmission shaft to rotate is installed on one side outer wall of the back frame, a water level sensor is installed at the bottom end of the carrier communication box, and a central control module electrically connected to the output end of the water level sensor is installed on the inner wall of one side of the carrier communication box, and the output end of the central control module is electrically connected to the input end of the stepper motor.

[0005] Preferably, double-track support structures for guiding the inverted U-shaped frame to be lifted and lowered are provided on both side outer walls of the carrier communication box.

[0006] Preferably, the double-track support structure includes two guide rails fixed on the outer wall of one side of the carrier communication box, and two C-shaped sliders installed on the outer wall of one side of the inverted U-shaped frame, and the C-shaped sliders are slidably connected to the guide rails.

[0007] Preferably, leg columns are fixed on both sides of the bottom end of the inverted U-shaped frame.

[0008] Preferably, the gear rack lifting structure includes a vertical rack fixed on the front and rear outer walls of the inverted U-shaped frame, and a driving gear installed on both ends of the main transmission shaft surface, and the driving gear and the vertical rack are meshed with each other.

[0009] Preferably, the gear transmission assembly includes a reversing shaft rotatably mounted on the inner wall of one side of the carrier communication box, and a pulley transmission structure installed at one end of the reversing shaft surface for rotating synchronously with the main transmission shaft in the same direction; one end of the reversing shaft surface is also installed with a counter-gear transmission structure for rotating synchronously with the auxiliary transmission shaft in the opposite direction.

[0010] Preferably, the inverted U-shaped frame and leg columns are both made of stainless steel.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the medium-voltage power line carrier communication device realizes an automatic lifting function through components such as water level sensors, stepper motors, main drive shafts, and gear rack lifting structures, which can effectively prevent the communication device box from being flooded, thereby avoiding equipment damage or short circuits, especially under extreme weather conditions such as heavy rain or floods. Timely lifting of the box can ensure the normal operation of the communication device and ensure the stability of the power system. The automatic lifting function also greatly reduces the possibility of accumulated water entering the box, reduces the frequency of equipment maintenance and repair, and ensures the continuity of data transmission and information exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the side structure of the main support frame of the utility model;

[0015] Figure 4 This is a schematic diagram of the main structure of the carrier communication box of the utility model after the door panel is removed;

[0016] In the figure: 1. carrier communication box; 101. guide rail; 102. C-mouth slider; 2. auxiliary support frame; 201. auxiliary transmission shaft; 3. main support frame; 4. inverted U-shaped frame; 401. leg column; 5. main transmission shaft; 6. gear rack lifting structure; 7. back frame; 8. stepper motor; 9. reversing shaft; 10. pulley transmission structure; 11. central control module; 12. water level sensor; 13. gear transmission structure. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4, the utility model provides an embodiment: a medium-voltage power line carrier communication device, including a carrier communication box 1, the carrier communication module, the microprocessor unit MCU, the power module, the interface module and the protection device are pre-installed in the carrier communication box 1, the auxiliary support frame 2 and the main support frame 3 are symmetrically fixed on the outer walls on both sides of the carrier communication box 1, the auxiliary support frame 2 and the main support frame 3 are respectively rotatably installed with an auxiliary transmission shaft 201 and a main transmission shaft 5, a gear transmission assembly for realizing synchronous reverse rotation is arranged between the auxiliary transmission shaft 201 and the main transmission shaft 5, an inverted U-shaped frame 4 is slidably installed on the outer walls of the auxiliary support frame 2 and the main support frame 3, and leg columns 401 are fixed on both sides of the bottom of the inverted U-shaped frame 4;

[0019] The surfaces of the secondary transmission shaft 201 and the main transmission shaft 5 are both installed with a gear rack lifting structure 6 for driving the inverted U-shaped frame 4 to lift and lower. A back frame 7 is fixed to the back of the main support frame 3. A stepper motor 8 for driving the main transmission shaft 5 to rotate is installed on one side outer wall of the back frame 7. A water level sensor 12 is installed at the bottom end of the carrier communication box 1. A central control module 11 electrically connected to the output end of the water level sensor 12 is installed on the inner wall of one side of the carrier communication box 1. The water level of the external environment is detected in real time by the water level sensor 12. The output end of the central control module 11 is electrically connected to the input end of the stepper motor 8;

[0020] The outer walls on both sides of the carrier communication box 1 are provided with a double-track support structure for guiding the inverted U-shaped frame 4 to be lifted and lowered. The double-track support structure includes two guide rails 101 fixed on the outer wall of one side of the carrier communication box 1, and two C-shaped sliders 102 installed on the outer wall of one side of the inverted U-shaped frame 4. The C-shaped slider 102 is slidably connected to the guide rail 101. During the lifting process of the box body, the double-track support structure composed of the guide rail 101 and the C-shaped slider 102 can effectively support the box body, prevent the box body from shaking or tilting, and ensure the stability of the lifting process;

[0021] The gear rack lifting structure 6 includes a vertical rack fixed on the front and rear outer walls of the inverted U-shaped frame 4, and a driving gear installed on both ends of the surface of the main transmission shaft 5. The driving gear and the vertical rack mesh with each other. The stepper motor 8 drives the main transmission shaft 5 and the auxiliary transmission shaft 201 to rotate synchronously in the opposite direction. Then the main transmission shaft 5 drives the driving gear to rotate, and the vertical rack on the outer wall of the inverted U-shaped frame 4 is driven by the driving gear to lift and lower, that is, the vertical rack, the inverted U-shaped frame 4 and other components move downward. At this time, the leg column 401 is firmly supported on the ground, and the carrier communication box 1 is stably lifted and moved upward. When the water level suddenly rises, the communication device can be quickly lifted and left the water surface in time;

[0022] The gear transmission assembly includes a reversing shaft 9 rotatably mounted on the inner wall of one side of the carrier communication box 1, and a pulley transmission structure 10 installed at one end of the surface of the reversing shaft 9 for synchronously rotating in the same direction as the main transmission shaft 5. A counter-gear transmission structure 13 is also installed at one end of the surface of the reversing shaft 9 for synchronously rotating in the opposite direction with the auxiliary transmission shaft 201. The inverted U-shaped frame 4 and the leg column 401 are both made of stainless steel components. During the operation of the device, it can be driven by a single stepper motor 8. By controlling the number of rotation steps and speed of the stepper motor 8, it can ensure that the box is lifted to the set height steadily and accurately, thereby improving the stability and reliability of the system.

[0023] When the embodiment of the present application is in use, first, the carrier communication box 1 converts the digital signal into an analog signal suitable for transmission on the power line through the modulation technology, and performs the opposite operation at the receiving end to realize data transmission and communication. During the operation of the carrier communication box 1, the water level sensor 12 detects the external environmental water level in real time. When the water level sensor 12 detects that there is water accumulation under itself, the water level sensor 12 transmits the electrical signal to the central control module 11, and the central control module 11 controls the stepper motor 8 to work, and drives the main transmission shaft 5 to rotate first through the stepper motor 8. At this time, the rotation power of the main transmission shaft 5 is transmitted to the reversing shaft 9 through the pulley transmission structure 10, and the reversing shaft 9 drives the secondary transmission shaft 201 to rotate through the gear transmission structure 13. At this time, the main transmission shaft 5 and the secondary transmission shaft 201 rotate synchronously in opposite directions. Taking the main transmission shaft 5 as an example, the main transmission shaft 5 The inverted U-shaped frame 4 is driven to actively descend through the gear rack lifting structure 6. At this time, the downward force of the inverted U-shaped frame 4 causes the carrier communication box 1 to actively lift upward, and then the water level sensor 12 is away from the accumulated water. In this process, the inverted U-shaped frame 4 and the carrier communication box 1 slide relative to each other, and the double-track support structure improves the lifting stability of the inverted U-shaped frame 4. The automatic lifting function is realized through the water level sensor 12, stepper motor 8, main drive shaft 5, gear rack lifting structure 6 and other components, which can effectively prevent the communication device box from being flooded, thereby avoiding equipment damage or short circuit, especially under extreme weather conditions such as heavy rain or floods. Lifting the box in time can ensure the normal operation of the communication device and ensure the stability of the power system. The automatic lifting function also greatly reduces the possibility of accumulated water entering the box, reduces the frequency of equipment maintenance and repair, and ensures the continuity of data transmission and information exchange.

Claims

1. A medium voltage power line carrier communication device, characterized in that: The invention comprises a carrier communication box (1) and a secondary support frame (2) and a main support frame (3) symmetrically fixed on the outer walls of both sides of the carrier communication box (1); a secondary transmission shaft (201) and a main transmission shaft (5) are rotatably installed inside the secondary support frame (2) and the main support frame (3); a gear transmission assembly for realizing synchronous reverse rotation is arranged between the secondary transmission shaft (201) and the main transmission shaft (5); an inverted U-shaped frame (4) is slidably installed on the outer walls of the secondary support frame (2) and the main support frame (3); and the surfaces of the secondary transmission shaft (201) and the main transmission shaft (5) are both installed A gear rack lifting structure (6) is provided for driving the inverted U-shaped frame (4) to be lifted or lowered; a back frame (7) is fixed to the back of the main support frame (3); a stepper motor (8) for driving the main transmission shaft (5) to rotate is installed on one side outer wall of the back frame (7); a water level sensor (12) is installed at the bottom end of the carrier communication box (1); a central control module (11) electrically connected to the output end of the water level sensor (12) is installed on the inner wall of one side of the carrier communication box (1); and the output end of the central control module (11) is electrically connected to the input end of the stepper motor (8).

2. The medium voltage power line carrier communication device according to claim 1, characterized in that: Double-track support structures for guiding the inverted U-shaped frame (4) to be lifted and lowered are provided on both side outer walls of the carrier communication box (1).

3. The medium voltage power line carrier communication device according to claim 2, characterized in that: The double-track support structure comprises two guide rails (101) fixed on the outer wall of one side of the carrier communication box (1), and two C-shaped sliding blocks (102) installed on the outer wall of one side of the inverted U-shaped frame (4), and the C-shaped sliding blocks (102) and the guide rails (101) are slidably connected.

4. The medium voltage power line carrier communication device according to claim 1, characterized in that: Leg columns (401) are fixed on both sides of the bottom end of the inverted U-shaped frame (4).

5. The medium voltage power line carrier communication device according to claim 1, characterized in that: The gear rack lifting structure (6) comprises a vertical rack fixed on the front and rear outer walls of the inverted U-shaped frame (4), and a driving gear installed on both ends of the surface of the main transmission shaft (5), and the driving gear and the vertical rack are meshed with each other.

6. The medium voltage power line carrier communication device according to claim 1, characterized in that: The gear transmission assembly comprises a reversing shaft (9) rotatably mounted on an inner wall of one side of a carrier communication box (1), and a pulley transmission structure (10) mounted on one end of the surface of the reversing shaft (9) for synchronously rotating in the same direction as the main transmission shaft (5); and a counter gear transmission structure (13) is also mounted on one end of the surface of the reversing shaft (9) for synchronously rotating in the opposite direction with the auxiliary transmission shaft (201).

7. The medium voltage power line carrier communication device according to claim 1, characterized in that: The inverted U-shaped frame (4) and the leg column (401) are both made of stainless steel.

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