Early warning device for icing thickness of power transmission line

Abstract

The invention provides a power transmission line icing thickness early warning device which comprises a bottom frame, a hanging frame is vertically and fixedly arranged on one side of the top of the bottom frame, two wire clamps are symmetrically and fixedly arranged above the bottom frame, a simulation wire is arranged between the two wire clamps, and a box body corresponding to the simulation wire is erected above the bottom frame. A thickness detection head and a telescopic mechanism are arranged in the box body, and a camera corresponding to the simulation wire is arranged at the bottom of the box body; the telescopic mechanism is used for driving the thickness detection head to reciprocate between the simulation wire and the interior of the box body; the thickness detection head detects the icing thickness of the upper side and the lower side of the simulation wire at the simulation wire; the thickness detection head is connected with a controller, and the controller is connected with a communication module which is used for being in communication connection with a background server to generate an early warning signal. According to the invention, the icing thickness on the simulation wire can be directly obtained, the thickness detection error is reduced, and the icing early warning accuracy is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of power transmission line safety warning, and in particular relates to a transmission line ice thickness warning device. Background Art

[0002] After the transmission line is covered with ice, the comprehensive load of the conductor changes. Several transmission line ice measurement devices currently seen are directly installed on the transmission line conductor or insulator string, which requires the line to be energized or the power is off for installation. The workload is large and the cost is relatively high. Therefore, there cannot be too many installation points. The line ice measurement method using simulated conductors is to hang a simulated conductor of the same model and material as the line conductor on the line tower. When the actual line is covered with ice under the same meteorological conditions, the thickness of the ice is determined by measuring the change in the weight of the simulated conductor, thereby equivalently inferring the thickness of the ice on the transmission line conductor.

[0003] In the prior art, the ice thickness on the simulated conductor is usually calculated by weighing. This calculation method cannot directly detect the ice thickness on the simulated conductor and has certain errors. The accuracy of inferring the ice condition of the transmission line by this method is poor.

[0004] Therefore, it is necessary to design a transmission line ice thickness warning device that can directly obtain the ice thickness on the simulated conductor, reduce the thickness detection error, and improve the accuracy of ice warning to solve the current technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a transmission line ice thickness warning device that can directly obtain the ice thickness on a simulated conductor, reduce thickness detection errors, and improve the accuracy of ice warnings.

[0006] The technical solution of the present invention is: an ice thickness warning device for a power transmission line comprises a base frame, a hanging bracket is vertically fixedly arranged on one side of the top of the base frame, two wire clamps are symmetrically fixedly arranged above the base frame, a simulated wire is arranged between the two wire clamps, a box corresponding to the simulated wire is arranged above the base frame, a thickness detection head and a telescopic mechanism are arranged inside the box, and a camera corresponding to the simulated wire is arranged at the bottom of the box; the telescopic mechanism is used to drive the thickness detection head to reciprocate between the simulated wire and the inside of the box; the thickness detection head detects the ice thickness on the upper and lower sides of the simulated wire at the simulated wire; the thickness detection head is connected to a controller, and the controller is connected to a communication module for communicating with a background server to generate a warning signal.

[0007] The telescopic mechanism comprises a lead screw rotatably arranged inside the box body, a telescopic driving motor for driving the lead screw to rotate is arranged at one end of the lead screw, two sections of external threads with opposite spiral directions are symmetrically arranged on the lead screw, two driving blocks are threadedly connected to the lead screw, scissor-type connecting rods are hinged on the two driving blocks, an auxiliary connecting rod is hinged on the end of the scissor-type connecting rod facing away from the driving block, and the auxiliary connecting rod is hinged to the thickness detection head.

[0008] A guide seat is centrally hinged on one end of the scissor-type connecting rod close to the thickness detection head, a sliding rod is fixedly arranged on the thickness detection head, and the sliding rod is vertically slidably connected with the guide seat.

[0009] The lead screw is rotatably supported inside the box body through a shaft seat.

[0010] A cover plate is arranged on one side of the box body, and electric push rods for driving the cover plate to open or close are arranged on both sides of the box body.

[0011] The thickness detection head has a detection slot body, and ultrasonic distance measuring probes corresponding to two sides of the simulated wire are arranged inside the detection slot body.

[0012] A vertical pole is fixedly arranged at the bottom of the wire clamp, and the bottom end of the vertical pole is fixedly arranged on the top of the base frame.

[0013] The wire clamp has a fixed sleeve fixedly arranged at the upper end of the vertical pole, and an adjusting bolt threadedly connected to the top of the fixed sleeve is arranged along its radial direction. The simulated wire is arranged inside the fixed sleeve, and the end of the adjusting bolt corresponds to one side of the simulated wire inside the fixed sleeve.

[0014] A pressure plate is rotatably arranged at the end of the adjusting bolt inside the fixed sleeve, and the pressure plate is an arc-shaped plate structure.

[0015] The box body is a heat-insulating box body, and a heating component is arranged inside the box body.

[0016] Beneficial effects of the present invention: (1) In the present invention, the simulated wire is clamped and fixed on the top of the base frame by a wire clamp, and the wire clamp is kept in a straight state. When the thickness detection head is not covered with ice, it collects the initial distance between the upper and lower sides of the simulated wire and the simulated wire, and then periodically collects the distance between the upper and lower sides of the simulated wire and the simulated wire. When ice is formed on the simulated wire, the distance between the upper and lower sides of the simulated wire collected by the thickness detection head and the simulated wire will become smaller, and the variable is the ice thickness of the upper and lower sides of the simulated wire. (2) The controller presets an ice thickness warning value. When the thickness detection head detects that the ice thickness is greater than the preset ice thickness warning value, the controller sends a warning signal to the background through the communication module to remind relevant personnel to remove ice in time; (3) The thickness of ice on both sides of the simulated conductor is directly detected by the thickness detection head, which reduces the thickness detection error and improves the accuracy of ice warning. (4) In the idle state, the thickness detection head and the telescopic mechanism are located inside the box. When testing is required, they are moved out from the inside of the box to the simulated wire for testing to avoid the thickness detection head and the telescopic mechanism being exposed to the outside for a long time, which may cause ice to form on the outside and affect the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural schematic diagrams of the transmission line ice thickness warning device in the present invention.

[0018] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0019] Figure 3 This is the second structural schematic diagram of the ice thickness warning device for power transmission lines in the present invention.

[0020] Figure 4 It is a structural schematic diagram of the telescopic mechanism in the present invention.

[0021] Figure 5 This is the third structural schematic diagram of the ice thickness warning device for power transmission lines in the present invention.

[0022] Figure 6 for Figure 5 A partial enlarged view of point B in the middle.

[0023] Figure 7 The figure is a principle block diagram of the ice thickness warning device for power transmission lines in the present invention. DETAILED DESCRIPTION

[0024] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, rather than as limitations.

[0025] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figures 1 to 7 As shown, the transmission line ice thickness warning device includes a base frame 1, a hanger 2 is vertically fixedly arranged on one side of the top of the base frame 1, two wire clamps 7 are symmetrically fixedly arranged above the base frame 1, a simulated wire 6 is arranged between the two wire clamps 7, a box body 3 corresponding to the simulated wire 6 is arranged above the base frame 1, and a thickness detection head 5 and a telescopic mechanism 4 are arranged inside the box body 3; the telescopic mechanism 4 is used to drive the thickness detection head 5 to reciprocate between the simulated wire 6 and the inside of the box body 3; the thickness detection head 5 detects the ice thickness on the upper and lower sides of the simulated wire 6 at the simulated wire 6, and a camera 9 corresponding to the simulated wire 6 is arranged at the bottom of the box body 3, and a controller is connected to the thickness detection head 5, and a communication module for communicating with a background server to generate a warning signal is connected to the controller; in this embodiment, the simulated wire 6 is clamped and fixed on the top of the base frame 1 by the wire clamp 7, and the wire clamp 7 is kept in a straight state. When the thickness detection head 5 is not covered with ice, it is taken The initial distance between the upper and lower sides of the simulated wire 6 and the ...

[0027] In some embodiments, Figure 4As shown, the telescopic mechanism 4 has a lead screw 41 rotatably arranged inside the box body 3, one end of the lead screw 41 is provided with a telescopic driving motor 42 for driving the rotation thereof, two sections of external threads with opposite spiral directions are symmetrically arranged on the lead screw 41, two driving blocks 43 are threadedly connected to the lead screw 41, scissor-type links 44 are hinged on the two driving blocks 43, and an auxiliary link 47 is hinged on the end of the scissor-type link 44 away from the driving block 43, and the auxiliary link 47 is hinged to the thickness detection head 5; the telescopic driving motor 42 drives the lead screw 41 to rotate, and the external threads with opposite spiral directions at both ends of the lead screw 41 respectively drive the two driving blocks 43 to approach or move away from each other; when the two driving blocks 43 are approaching, the scissor-type link 44 is driven to extend, and when the two driving blocks 43 are away from each other, the scissor-type link 44 is driven to shorten; when the scissor-type link 44 is extended or shortened, the thickness detection head 5 is driven to extend or retract from the box body 3 through the auxiliary link 47.

[0028] In some embodiments, in order to improve the stability of the thickness detection head 5, a guide seat 45 is centrally hinged on one end of the scissor-type connecting rod 44 close to the thickness detection head 5, and a sliding rod 46 is fixedly provided on the thickness detection head 45. The sliding rod 46 is vertically slidably connected to the guide seat 45. The thickness detection head 5 is slidably connected to the guide seat 45 through the sliding rod 46, which can improve the stability of the thickness detection head 5 and prevent the thickness detection head 5 from shaking and affecting the detection.

[0029] In some embodiments, the lead screw 41 is rotatably supported inside the box body 3 via a shaft seat 48 , both ends of the lead screw 41 are rotatably provided with a shaft seat 48 , and the bottom end of the shaft seat 48 is fixedly provided on the inner bottom of the box body 3 .

[0030] In some embodiments, Figure 5 As shown, a cover plate 31 is provided on one side of the box body 3, and the top of the cover plate 31 is hinged to the open top of the box body 3. Electric push rods 32 for driving the cover plate 31 to open or close are provided on both sides of the box body 3. When it is necessary to detect the ice thickness of the simulated wire 6, the cover plate 31 is first driven to flip upward and open by the electric push rod 32, and then the thickness detection head 5 is driven to extend for detection by the telescopic mechanism 4; after the detection is completed, the telescopic mechanism 4 drives the thickness detection head 5 to retract, and then the electric push rod 32 drives the cover plate 31 to flip upward and close, so as to close the box body 3 to prevent ice from covering the telescopic mechanism 4 and the thickness detection head 5.

[0031] In some embodiments, as a specific implementation of the thickness detection head 5, as Figure 2 As shown, the thickness detection head 5 has a detection slot 51, and ultrasonic ranging probes 52 corresponding to the two sides of the simulated wire 6 are arranged inside the detection slot 51. By using the two ultrasonic ranging probes 52 inside the detection slot 51 corresponding to the upper and lower sides of the simulated wire 6 respectively, the ice thickness on the outside of the simulated wire 6 can be directly measured.

[0032] In some embodiments, a vertical pole 8 is fixedly disposed at the bottom of the wire clamp 7 , and a bottom end of the vertical pole 8 is fixedly disposed on the top of the base frame 1 , so that the vertical pole 8 provides stable support for the wire clamp 7 .

[0033] In some embodiments, Figure 6 As shown, the wire clamp 7 has a fixed sleeve 71 fixedly arranged at the upper end of the vertical pole 8, and an adjusting bolt 72 threadedly connected to the fixed sleeve 71 is arranged at the top along its radial direction. The simulated wire 6 is arranged inside the fixed sleeve 71, and the end of the adjusting bolt 72 corresponds to one side of the simulated wire 6 inside the fixed sleeve 71. By screwing the adjusting bolt 72, the adjusting bolt 72 can move up and down along the radial direction of the fixed sleeve 71, and the simulated wire 6 can be clamped or released by cooperating with the end of the adjusting bolt 72 and the fixed sleeve 71, and can clamp and fix simulated wires of different outer diameters within a certain range, and has a wide range of applications.

[0034] In some embodiments, a pressure plate 73 is rotatably provided at the end of the adjusting bolt 72 inside the fixed sleeve 71. The pressure plate 73 is an arc-shaped plate structure. The pressure plate 73 can increase the contact area between the simulated wire 6 and the simulated wire 6 when the simulated wire 6 is clamped and fixed, so as to improve the strength of the clamping fixation.

[0035] In some embodiments, the box body 3 is an insulated box body, and a heating component is arranged inside the box body 3. The heating component includes an electric heating wire and a temperature sensor. The internal temperature of the box body can be heated by the electric heating wire. At the same time, the electric heating wire is feedback-adjusted by the temperature sensor, so that the internal temperature of the box body 3 can be maintained within a set range, such as about 1~10°C. In this temperature environment, the thickness detection head 5 and the telescopic mechanism 4 will not be covered with ice, which will affect subsequent detection; at the same time, the ice on the simulated wire 6 will not melt due to excessive temperature, which will affect the accuracy of the detection.

[0036] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0037] The above-mentioned embodiments only express some implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A transmission line ice thickness warning device, characterized by: It comprises a base frame, a hanging frame is vertically fixedly arranged on one side of the top of the base frame, two wire clamps are symmetrically fixedly arranged above the base frame, a simulated wire is arranged between the two wire clamps, a box corresponding to the simulated wire is arranged above the base frame, a thickness detection head and a telescopic mechanism are arranged inside the box, and a camera corresponding to the simulated wire is arranged at the bottom of the box; The telescopic mechanism is used to drive the thickness detection head to reciprocate between the simulated wire and the inside of the box; The thickness detection head detects the ice thickness on the upper and lower sides of the simulated wire at the simulated wire; The thickness detection head is connected to a controller, and the controller is connected to a communication module for communicating with a background server to generate an early warning signal.

2. The transmission line ice thickness warning device according to claim 1 is characterized in that: The telescopic mechanism comprises a lead screw rotatably arranged inside the box body, a telescopic driving motor for driving the lead screw to rotate is arranged at one end of the lead screw, two sections of external threads with opposite spiral directions are symmetrically arranged on the lead screw, two driving blocks are threadedly connected to the lead screw, scissor-type connecting rods are hinged on the two driving blocks, an auxiliary connecting rod is hinged on the end of the scissor-type connecting rod facing away from the driving block, and the auxiliary connecting rod is hinged to the thickness detection head.

3. The power transmission line ice thickness warning device according to claim 2 is characterized in that: A guide seat is centrally hinged on one end of the scissor-type connecting rod close to the thickness detection head, a sliding rod is fixedly arranged on the thickness detection head, and the sliding rod is vertically slidably connected with the guide seat.

4. The transmission line ice thickness warning device according to claim 2 is characterized in that: The lead screw is rotatably supported inside the box body through a shaft seat.

5. The power transmission line ice thickness warning device according to claim 1 is characterized by: A cover plate is arranged on one side of the box body, and electric push rods for driving the cover plate to open or close are arranged on both sides of the box body.

6. The power transmission line ice thickness warning device according to claim 1 is characterized by: The thickness detection head has a detection slot body, and ultrasonic distance measuring probes corresponding to two sides of the simulated wire are arranged inside the detection slot body.

7. The power transmission line ice thickness warning device according to claim 1 is characterized by: A vertical pole is fixedly arranged at the bottom of the wire clamp, and the bottom end of the vertical pole is fixedly arranged on the top of the base frame.

8. The power transmission line ice thickness warning device according to claim 7 is characterized by: The wire clamp has a fixed sleeve fixedly arranged at the upper end of the vertical pole, and an adjusting bolt threadedly connected to the top of the fixed sleeve is arranged along its radial direction. The simulated wire is arranged inside the fixed sleeve, and the end of the adjusting bolt corresponds to one side of the simulated wire inside the fixed sleeve.

9. The transmission line ice thickness warning device according to claim 8 is characterized in that: A pressure plate is rotatably arranged at the end of the adjusting bolt inside the fixed sleeve, and the pressure plate is an arc-shaped plate structure.

10. The transmission line ice thickness warning device according to claim 1, characterized in that: The box body is a heat-insulating box body, and a heating component is arranged inside the box body.

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