A power transmission monitoring device for electrical engineering automation

Abstract

This application relates to a power transmission monitoring device for electrical engineering automation, comprising a mounting plate, a protective shell fixedly connected to the front of the mounting plate, and guide mechanisms on both side walls of the protective shell. These guide mechanisms guide the power line, ensuring stable operation in a specific direction. A limit block is installed inside the protective shell to create a V-shaped limit on the power line. An elastic mechanism is provided on the side of the limit block. This application addresses the problem of existing devices lacking both accurate monitoring and timely warning functions for both over-tight and over-loose power line conditions when the tension in the power line exceeds a set threshold due to extreme conditions. This causes the limit block to move upward or downward, thereby triggering an over-tight or over-loose detection mechanism to provide on-site and remote early warning.

Description

Technical Field

[0001] This application relates to the technical field of power transmission monitoring, and in particular to a power transmission monitoring device for electrical engineering automation. Background Technology

[0002] Electrical engineering is an engineering technology field that studies the production, transmission, distribution, and utilization of electrical energy and the design and manufacture of related equipment. In electrical engineering, relying on high-voltage and ultra-high-voltage transmission technologies, it is possible to construct a backbone power grid architecture to realize long-distance, large-capacity, and low-loss cross-regional transmission of electrical energy, thereby enabling the distribution of electricity to households. This plays an indispensable strategic role in ensuring the people's livelihood and economic development of the country. Among them, transmission lines, as the key infrastructure for power transmission, are of paramount importance for their safe and stable operation.

[0003] Existing transmission lines are generally maintained within a certain tension range. If the transmission line is too tight, the conductors will be subjected to excessive tensile force. Under long-term high stress, the conductors are prone to fatigue damage, leading to broken strands or even breakage. An overly tight line may also exert excessive pressure on the towers. Conversely, if the transmission line is too loose, the conductor sag will increase, reducing the safe distance between the conductor and the ground, causing safety hazards such as electric shock. It will also make the line more prone to large swaying and vibration under light winds, accelerating conductor wear.

[0004] However, the traditional method of relying on regular manual inspections is inefficient, costly, and lacks the ability to accurately monitor and promptly warn of both overly tight and overly loose lines, making it difficult to meet monitoring needs. Therefore, we propose a power transmission monitoring device for electrical engineering automation. Utility Model Content

[0005] To address the existing problem of inconvenience in monitoring the tension of power lines, this application provides a power transmission monitoring device for electrical engineering automation.

[0006] The power transmission monitoring device for electrical engineering automation provided in this application adopts the following technical solution:

[0007] A power transmission monitoring device for electrical engineering automation includes a mounting plate. A protective shell is fixedly connected to the front of the mounting plate. Guide mechanisms are provided on both side walls of the protective shell. These guide mechanisms guide the power line and ensure its stable operation in a specific direction. Limit blocks are provided inside the protective shell to make the power line form a V-shaped limit state. Elastic mechanisms are provided on the sides of the limit blocks. An overtightening detection mechanism is provided above the limit blocks, and an over-loosening detection mechanism is provided below the limit blocks.

[0008] By adopting the above solution, when the tension of the line exceeds the set threshold due to extreme conditions, the limit block will move upward or downward, thereby driving the over-tightness detection mechanism or the over-looseness detection mechanism to achieve on-site and remote early warning, thus solving the existing problem of lacking dual accurate monitoring and timely warning functions for over-tightness and over-looseness of the line.

[0009] Furthermore, the guiding mechanism includes a fixed ring, the outer surface of which is fixedly connected to the protective shell, and a plurality of balls are movably embedded in the inner wall of the fixed ring.

[0010] By adopting the above scheme, the wire passes through the inside of the fixed ring. When the wire slides inside the fixed ring, the friction between the fixed ring and the wire is reduced by the ball bearings, preventing the wire from being scratched.

[0011] Furthermore, the elastic mechanism includes a fixed rod, the two ends of which are fixedly connected to the inner bottom wall and the inner top wall of the protective shell, respectively. A sliding block is slidably connected to the outer surface of the fixed rod, one side of the sliding block is fixedly connected to a limiting block, and a spring is fixedly connected to the upper surface of the sliding block. The upper end of the spring is fixedly connected to the inner wall of the protective shell.

[0012] By adopting the above scheme, the fixed rod is used to limit the sliding block, so that it can only move straight up and down, preventing it from deviating and thus preventing the limiting block from deviating. The spring gives the sliding block a downward elastic force, which causes the limiting block to press the circuit downward, keeping the circuit taut.

[0013] Furthermore, the overtightness detection mechanism includes a support rod, on the upper surface of which a first circular plate is fixedly connected, and on the upper surface of the first circular plate are two first observation rods and a first pressure sensor fixedly mounted.

[0014] By adopting the above scheme, when the circuit is too tight, the limit block moves upward, thereby driving the first observation rod and the first pressure sensor to move upward. The first observation rod, which has a red coating, extends to the outside of the protective shell. When the first observation rod extends to the outside of the protective shell, the tightness of the circuit can be directly observed from the ground, facilitating quick repair. At the same time, the first pressure sensor presses upward against the inner top wall of the protective shell. The protective shell also contains a controller and a communication module. After the first pressure sensor detects the pressure, it transmits the signal to the controller, which then transmits it to the external control center through the communication module. This dual physical and communication warning allows staff to be informed.

[0015] Furthermore, the looseness detection mechanism includes a fixed frame, the upper end of which is fixedly connected to a limiting block, and a second circular plate fixedly connected to the lower surface of the fixed frame. Two second observation rods and a second pressure sensor are fixedly installed on the lower surface of the second circular plate.

[0016] By adopting the above scheme, when the circuit is too loose, it cannot resist the elastic force of the spring mechanism, causing the limit block to move downward, thereby driving the second observation rod and the second pressure sensor to move downward. Similarly, it is easy to detect the problem of being too loose.

[0017] Furthermore, transparent cylinders are fixedly connected to both the upper and lower surfaces of the protective shell. The inner wall of the upper transparent cylinder is slidably connected to the first observation rod, and the inner wall of the lower transparent cylinder is slidably connected to the second observation rod.

[0018] By adopting the above scheme, the positions of the first and second observation rods can be observed through the transparent tube to determine the current tightness of the circuit and then decide whether to inspect the circuit. However, when the first and second pressure sensors send signals, the positions of the first and second observation rods are already protruding outwards, indicating that the problem with the circuit is very serious and must be inspected.

[0019] Furthermore, the protective mechanism includes a mounting block, one side of which is fixedly connected to the protective shell, a limit ring is fixedly connected to the upper surface of the mounting block, a rainproof plate is fixedly connected to the outer surface of the protective shell, and an opening and closing door is hinged to the front of the protective shell.

[0020] By adopting the above solution, rainproof plates prevent rainwater from entering, while the limiting ring restricts the position of the line before entering the protective shell, preventing rainwater from entering along the line. Small balls are also provided inside the limiting ring to reduce friction.

[0021] In summary, the beneficial technical effects of this application are as follows:

[0022] 1. This power transmission monitoring device for electrical engineering automation, by setting up components such as limit blocks, will cause the limit blocks to move upward or downward when the tension of the line exceeds the set threshold due to extreme conditions. This will drive the over-tightness detection mechanism or the over-looseness detection mechanism to achieve dual early warning functions of on-site early warning and remote early warning, thereby solving the problem of the lack of dual accurate monitoring and timely warning functions for the over-tightness and over-looseness of the line in the existing system.

[0023] 2. This power transmission monitoring device for electrical engineering automation is equipped with protective mechanisms and other components. It prevents rainwater from entering through a rainproof plate, and the limiting ring restricts the position of the line before entering the protective shell, preventing rainwater from entering along the line, thereby increasing the rainproof effect of the device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0025] Figure 2 This is a cross-sectional view of the protective shell in an embodiment of this application;

[0026] Figure 3 This is an embodiment of the present application. Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figure 4 This is a three-dimensional structural diagram of the elastic mechanism in the embodiments of this application;

[0028] Figure 5 This is a three-dimensional structural diagram of the protective mechanism in the embodiments of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Mounting plate; 2. Protective shell; 3. Guide mechanism; 301. Fixing ring; 302. Ball bearing; 4. Limiting block; 5. Elastic mechanism; 501. Fixing rod; 502. Sliding block; 503. Spring; 6. Overtightness detection mechanism; 601. Support rod; 602. First circular plate; 603. First observation rod; 604. First pressure sensor; 7. Overlooseness detection mechanism; 701. Fixing frame; 702. Second circular plate; 703. Second observation rod; 704. Second pressure sensor; 8. Transparent cylinder; 9. Protective mechanism; 901. Mounting block; 902. Limiting ring; 903. Rainproof plate; 10. Opening and closing door. Detailed Implementation

[0031] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] This application discloses a power transmission monitoring device for electrical engineering automation. (Refer to...) Figure 1-5 It includes a mounting plate 1, a protective shell 2 fixedly connected to the front of the mounting plate 1, and guide mechanisms 3 provided on both side walls of the protective shell 2. The guide mechanisms 3 can guide the circuit and ensure that the circuit runs stably in a specific direction. The guide mechanism 3 includes a fixing ring 301, the outer surface of the fixing ring 301 is fixedly connected to the protective shell 2, and multiple balls 302 are movably embedded in the inner wall of the fixing ring 301. The circuit passes through the inside of the fixing ring 301. When the circuit slides inside the fixing ring 301, the balls 302 reduce the friction between the fixing ring 301 and the circuit and prevent the circuit from being scratched.

[0033] The protective shell 2 has a limiting block 4 inside, which is used to make the circuit form a V-shaped limiting state. The side of the limiting block 4 is provided with an elastic mechanism 5. The elastic mechanism 5 includes a fixed rod 501. The two ends of the fixed rod 501 are fixedly connected to the inner bottom wall and the inner top wall of the protective shell 2, respectively. The outer surface of the fixed rod 501 is slidably connected to a sliding block 502. One side of the sliding block 502 is fixedly connected to the limiting block 4. The upper surface of the sliding block 502 is fixedly connected to a spring 503. The upper end of the spring 503 is fixedly connected to the inner wall of the protective shell 2. The fixed rod 501 is used to limit the sliding block 502, so that it can only move straight up and down, preventing it from deviating, thereby preventing the limiting block 4 from deviating. The spring 503 gives the sliding block 502 a downward elastic force, so that the limiting block 4 presses the circuit downward, keeping the circuit in a taut state.

[0034] An overtightness detection mechanism 6 is provided above the limiting block 4. The overtightness detection mechanism 6 includes a support rod 601, and a first circular plate 602 is fixedly connected to the upper surface of the support rod 601. Two first observation rods 603 and a first pressure sensor 604 are fixedly installed on the upper surface of the first circular plate 602. When the circuit is too tight, the limiting block 4 moves upward, thereby driving the first observation rods 603 and the first pressure sensor 604 to move upward, causing the first observation rods 603 to rise to the outside of the protective shell 2. The first observation rods 603 are coated with a red coating. When the first observation rods 603 extend to the outside of the protective shell 2, the overtightness of the circuit can be directly observed from the ground, facilitating quick repair. At the same time, the first pressure sensor 604 presses upward against the inner top wall of the protective shell 2. The protective shell 2 also contains a controller and a communication module. After the first pressure sensor 604 detects the pressure, it transmits the signal to the controller, and then transmits it to the external control center through the communication module. This dual physical and communication warning allows the staff to be informed.

[0035] A looseness detection mechanism 7 is provided below the limiting block 4. The looseness detection mechanism 7 includes a fixed frame 701. The upper end of the fixed frame 701 is fixedly connected to the limiting block 4. A second circular plate 702 is fixedly connected to the lower surface of the fixed frame 701. Two second observation rods 703 and a second pressure sensor 704 are fixedly installed on the lower surface of the second circular plate 702. When the circuit is too loose, it cannot resist the elastic force of the elastic mechanism 5, causing the limiting block 4 to move downward, thereby driving the second observation rods 703 and the second pressure sensor 704 to move downward. Similarly, the looseness problem can be easily detected.

[0036] This monitoring device is installed on a low-voltage line, located outdoors in a bungalow, suitable for rural line installation. The mounting plate 1 is bolted to the exterior wall. The line passes sequentially through the interior of two guide mechanisms 3. The portion of the line inside the protective shell 2 is located below the limiting block 4. Three-point limiting ensures the portion of the line inside the protective shell 2 forms a V-shape. A spring mechanism 5 applies a downward elastic force to the limiting block 4, keeping the line taut and preventing it from becoming too loose. This also cushions the line from damage caused by external stretching. The variable limiting block 4... This is to counteract the thermal expansion and contraction of the circuit when the temperature changes. In extreme cases, such as a break, the circuit may become too loose or too tight. The circuit is monitored by the over-tightness detection mechanism 6 and the over-looseness detection mechanism 7. When the circuit is too tight, the limit block 4 will move upward against the elastic force of the elastic mechanism 5, thereby causing the over-tightness detection mechanism 6 to move upward. When the circuit is too loose, its tension is less than the elastic force. Under the action of the elastic mechanism 5, the limit block 4 will move downward, thereby causing the over-looseness detection mechanism 7 to move downward, so as to monitor the over-tightness and over-looseness respectively.

[0037] Transparent cylinders 8 are fixedly connected to both the upper and lower surfaces of the protective shell 2. The inner wall of the upper transparent cylinder 8 is slidably connected to the first observation rod 603, and the inner wall of the lower transparent cylinder 8 is slidably connected to the second observation rod 703. The positions of the first observation rod 603 and the second observation rod 703 can be observed through the transparent cylinder 8 to determine the current tightness of the circuit and then decide whether to check the circuit. However, when the first pressure sensor 604 and the second pressure sensor 704 send signals, the positions of the first observation rod 603 and the second observation rod 703 are already protruding outwards, indicating that the problem with the circuit is very serious and must be checked.

[0038] The protective mechanism 9 includes a mounting block 901, one side of which is fixedly connected to the protective shell 2. A limit ring 902 is fixedly connected to the upper surface of the mounting block 901. A rainproof plate 903 is fixedly connected to the outer surface of the protective shell 2. An opening and closing door 10 is hinged to the front of the protective shell 2. The rainproof plate 903 prevents rainwater from entering the door. At the same time, the limit ring 902 restricts the position of the line before it enters the protective shell 2, preventing rainwater from entering along the line. Small balls 302 are also provided inside the limit ring 902 to reduce friction.

[0039] The implementation principle of a power transmission monitoring device for electrical engineering automation according to an embodiment of this application is as follows:

[0040] During installation, the circuit first passes through the limiting ring 902 with ball bearings 302 in the protective mechanism 9, and then passes through the fixing rings 301 of the guide mechanisms 3 on both sides of the protective shell 2 in sequence, so that the circuit segment inside the protective shell 2 contacts the lower part of the limiting block 4, forming a three-point limiting structure, which forces the circuit to be distributed in a V-shape inside the protective shell 2.

[0041] The spring 503 connected to the upper surface of the sliding block 502 is in a pre-compressed state, continuously applying downward elastic pressure to the sliding block 502. This pressure is transmitted to the V-shaped distributed line through the limiting block 4, keeping the line at a set tension level and avoiding problems such as increased sag and aggravated vibration in light winds caused by excessively loose lines. At the same time, the elastic extension and contraction characteristics of the spring 503 can achieve a buffering effect. When the line is briefly stretched by an external force, the spring 503 can be further compressed to absorb the tension, preventing damage to the line due to excessive instantaneous stress. When changes in ambient temperature cause thermal expansion and contraction of the line, the spring 503 adaptively adjusts the height of the limiting block 4 through extension and contraction to offset the effect of changes in line length on tension and maintain stable line tension.

[0042] When the tension of the line exceeds the set threshold due to extreme conditions, the upward pulling force of the line on the limit block 4 will overcome the elastic pressure of the spring 503, pushing the limit block 4 to move upward. This will cause the support rod 601, the first circular plate 602, the first observation rod 603 above, and the first pressure sensor 604 of the overtightness detection mechanism 6 to move upward as a whole. The first observation rod 603 extends upward along the transparent cylinder 8 on the upper surface of the protective shell 2, and its red coating can be directly observed by ground personnel to quickly determine if the line is too tight. At the same time, when the first pressure sensor 604 moves upward to contact the inner top wall of the protective shell 2 and generates pressure, the sensor transmits the pressure signal to the controller inside the protective shell 2. The controller sends the abnormal information to the external control center in real time through the communication module to realize remote early warning.

[0043] When the tension of the line is less than the elastic pressure of the spring 503 due to reasons such as breakage or slack, the reset force of the spring 503 pushes the sliding block 502 to slide down along the fixed rod 501, causing the limit block 4 to move down synchronously, thus realizing on-site inspection and remote early warning.

[0044] Under normal conditions, neither the first observation rod 603 nor the second observation rod 703 protrudes from the transparent cylinder 8 or only slightly protrudes, indicating that the line tension is within a safe range. When the observation rod protrudes significantly from the transparent cylinder 8 and the pressure sensor triggers an electronic warning, it indicates that the line tension has exceeded the safe threshold and maintenance needs to be arranged immediately.

[0045] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A power transmission monitoring device for electrical engineering automation, characterized in that, The device includes a mounting plate (1), on the front of which a protective shell (2) is fixedly connected. Both sides of the protective shell (2) are provided with guide mechanisms (3). These guide mechanisms (3) can guide the line and ensure that the line runs stably in a specific direction. The protective shell (2) is provided with limit blocks (4) inside to make the line form a V-shaped limit state. The side of the limiting block (4) is provided with an elastic mechanism (5), the upper part of the limiting block (4) is provided with an overtight detection mechanism (6), and the lower part of the limiting block (4) is provided with an overloose detection mechanism (7).

2. The power transmission monitoring device for electrical engineering automation according to claim 1, characterized in that, The guide mechanism (3) includes a fixing ring (301), the outer surface of which is fixedly connected to the protective shell (2), and a plurality of balls (302) are movably embedded in the inner wall of the fixing ring (301).

3. The power transmission monitoring device for electrical engineering automation according to claim 1, characterized in that, The elastic mechanism (5) includes a fixed rod (501), the two ends of which are fixedly connected to the inner bottom wall and the inner top wall of the protective shell (2) respectively. A sliding block (502) is slidably connected to the outer surface of the fixed rod (501). One side of the sliding block (502) is fixedly connected to the limiting block (4). A spring (503) is fixedly connected to the upper surface of the sliding block (502). The upper end of the spring (503) is fixedly connected to the inner wall of the protective shell (2).

4. The power transmission monitoring device for electrical engineering automation according to claim 1, characterized in that, The overtightness detection mechanism (6) includes a support rod (601), and a first circular plate (602) is fixedly connected to the upper surface of the support rod (601). Two first observation rods (603) and a first pressure sensor (604) are fixedly installed on the upper surface of the first circular plate (602).

5. A power transmission monitoring device for electrical engineering automation according to claim 4, characterized in that, The looseness detection mechanism (7) includes a fixed frame (701), the upper end of which is fixedly connected to the limiting block (4), and a second circular plate (702) is fixedly connected to the lower surface of the fixed frame (701). Two second observation rods (703) and a second pressure sensor (704) are fixedly installed on the lower surface of the second circular plate (702).

6. A power transmission monitoring device for electrical engineering automation according to claim 5, characterized in that, The upper and lower surfaces of the protective shell (2) are both fixedly connected with transparent cylinders (8). The inner wall of the upper transparent cylinder (8) is slidably connected to the first observation rod (603), and the inner wall of the lower transparent cylinder (8) is slidably connected to the second observation rod (703).

7. A power transmission monitoring device for electrical engineering automation according to claim 6, characterized in that, The power transmission monitoring device also includes a protective mechanism (9); The protective mechanism (9) includes a mounting block (901), one side of which is fixedly connected to the protective shell (2), a limit ring (902) is fixedly connected to the upper surface of the mounting block (901), a rainproof plate (903) is fixedly connected to the outer surface of the protective shell (2), and an opening and closing door (10) is hinged to the front of the protective shell (2).

Images