Intelligent cover plate of cable trench and arrangement method of incoming cable trench of high-voltage chamber of transformer substation

Abstract

The invention discloses an intelligent cover plate for a cable trench, and the cover plate comprises a pedestal which is disposed in the cable trench. The plate body is rotatably mounted on the base; the supporting mechanism is installed between the base and the plate body, the supporting mechanism comprises a first connecting rod connected with the base and the plate body and a hydraulic structure connected with the first connecting rod and the plate body, and when the monitoring mechanism detects that a living animal enters the cable trench, the expelling mechanism expels the living animal. When the infrared probe detects that living animals such as rats and snakes enter the cable trench, a trigger signal is transmitted to the ultrasonic generator through the shielding cable, so that the influence of electromagnetic interference in the cable trench on signal transmission is avoided; the ultrasonic generator is started immediately after receiving the signal and emits frequency-adjustable ultrasonic waves of 25-40 kHz, and the frequency range covers auditory sensitive frequency bands of most common intruding animals, so that the animals can generate irritable and fear stress reactions and actively escape from the cable trench.

Description

Technical Field

[0001] This invention relates to the field of cable trench cover technology, and in particular to a smart cable trench cover. Background Technology

[0002] With the comprehensive implementation of substation consolidation, an increasing number of substations have revealed problems with inadequate sealing of high-voltage rooms to prevent small animals from entering. A number of sites have experienced incidents where inadequate sealing at the incoming cables of the high-voltage rooms allowed small animals to enter through the external cable trenches, causing short circuits and damage to live equipment, resulting in significant load losses.

[0003] Therefore, inspecting animal-proofing measures in high-voltage rooms is crucial. However, many substations with longer operating histories suffer from heavy trench covers at the incoming cable trenches of the high-voltage room. This makes it difficult for substation staff to move the trench covers to inspect the incoming cables for animal-proofing. This work often requires hiring laborers and preparing tools such as crowbars, consuming significant manpower, resources, and money. In some substations, the trench covers are even impossible to move manually, greatly increasing the difficulty of inspecting animal-proofing measures. Furthermore, the seals at the incoming cables of the high-voltage room can be damaged due to environmental or work-related factors, making it impossible for substation staff to monitor the seals 24 / 7. The risk of small animals entering the high-voltage room remains. The safe operation of equipment in the high-voltage room is overshadowed by the possibility of short circuits caused by small animals. Summary of the Invention

[0004] Therefore, the technical problem to be solved by this invention is the risk of short circuits in small animals.

[0005] The above-mentioned technical problems are solved by the following technical solution: The present invention proposes an intelligent cover for cable trenches, which includes a base, and the base is installed in the cable trench.

[0006] A plate that is rotatably mounted on a base; A support mechanism is installed between a base and a plate. The support mechanism includes a first connecting rod connecting the base and the plate, and a hydraulic structure connecting the first connecting rod and the plate. When the plate rotates and unfolds, it is supported by the hydraulic structure. A monitoring device, installed on the plate, is used to detect the condition inside the cable trench; The monitoring mechanism is connected to the deflection mechanism. When the monitoring mechanism detects that a live animal has entered the cable trench, the deflection mechanism deflects the live animal.

[0007] In a preferred embodiment of the intelligent cable trench cover of the present invention: an installation rail is installed on the plate body, and one end of the base is rotatably connected to the installation rail.

[0008] In a preferred embodiment of the intelligent cable trench cover of the present invention: one end of the first connecting rod is rotatably connected to the end of the base away from the mounting rail, and the other end of the first connecting rod is slidably connected to the mounting rail.

[0009] In a preferred embodiment of the intelligent cable trench cover of the present invention: a slider is installed at the end of the first connecting rod, and a groove is provided on the mounting rail. The first connecting rod is slidably connected to the mounting rail through the slider and the groove.

[0010] In a preferred embodiment of the intelligent cable trench cover of the present invention: the hydraulic structure is a hydraulic rod, one end of which is rotatably connected to a first connecting rod, and the other end of which is rotatably connected to an installation rail. When the plate is rotated and unfolded, the hydraulic rod can pull the first connecting rod to rotate and support the plate.

[0011] In a preferred embodiment of the intelligent cable trench cover of the present invention: the monitoring mechanism is an infrared probe, and the detection angle of the monitoring mechanism is not less than 90 degrees.

[0012] In a preferred embodiment of the intelligent cable trench cover of the present invention: the deflection mechanism is an ultrasonic generator.

[0013] The present invention also proposes a method for arranging incoming cable trenches in the high-voltage room of a substation, which includes setting up cable trenches that connect the interior and exterior of the high-voltage room.

[0014] Multiple ordinary cover plates are installed on the cable trench; The aforementioned smart cable trench cover is installed in the cable trench located outside the high-voltage chamber and closest to the high-voltage chamber. When the monitoring mechanism on the smart cover of the cable trench detects that a live animal has entered the cable trench, it uses a deflection mechanism to drive the live animal away, preventing it from entering the transformer's high-voltage room through the cable trench.

[0015] In a preferred embodiment of the substation high-voltage room incoming cable trench arrangement method of the present invention: the monitoring mechanism of the cable trench intelligent cover is installed at one corner of the cover, and the monitoring mechanism can monitor the inner wall of the cable trench.

[0016] In a preferred embodiment of the substation high-voltage room incoming cable trench arrangement method of the present invention: the intelligent cover of the cable trench is normally kept closed, and when maintenance is required, the access space is obtained by rotating the plate, which facilitates the maintenance personnel to enter the cable trench.

[0017] The beneficial effects of this invention are as follows: when the infrared probe detects that live animals such as rats or snakes have entered the cable trench, a trigger signal is transmitted to the ultrasonic generator through a shielded cable to avoid electromagnetic interference in the cable trench affecting signal transmission; after receiving the signal, the ultrasonic generator starts immediately and emits 25-40kHz adjustable ultrasonic waves. This frequency range covers the auditory sensitive frequency band of most common intruding animals, which will cause these animals to have a stress response of agitation and fear, thereby actively escaping the cable trench. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 The overall structure diagram of the smart cover for cable trenches is shown; Figure 2 A side view of the smart cover for cable trenches is shown; Figure 3 The location diagram of the monitoring mechanism of the smart cover for cable trenches is shown; Figure 4 The layout diagram of the incoming cable trench for the high-voltage room of the substation is shown; Figure 5 The diagram shows the layout of the incoming cable trench for the high-voltage room of the substation. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0021] Reference Figures 1 to 3 This embodiment provides a smart cover for cable trenches, including a base 1, which is installed on the cable trench X1. The base 1 is a load-bearing structure. In this embodiment, the base 1 can be integrally formed from high-strength steel such as Q235 steel, and its shape is adapted to the shape of the opening of the cable trench X1. It is a rectangular frame structure or a U-shaped frame structure, and the width and thickness of the frame are adapted to the specifications of the cable trench X1. The base 1 can cover and fit the edge of the opening of the cable trench X1.

[0022] During the construction of cable trench X1, a pre-embedded steel plate is pre-installed at the trench opening, and the base 1 is fixedly connected to the pre-embedded steel plate by welding; alternatively, expansion bolts can be used for fixing, that is, several mounting holes are pre-installed on the edge of the base 1, and the base 1 is fastened to the concrete trench wall of cable trench X1 by passing expansion bolts through the mounting holes.

[0023] Plate 2 is rotatably mounted on base 1. Plate 2 is made of high-strength composite material or steel, and its dimensions match those of base 1 to ensure that when closed, plate 2 completely covers the frame opening of base 1, achieving a sealed enclosure of cable trench X1. The rotatable connection between plate 2 and base 1 can be achieved using common rotatable connectors such as hinges and pivots. For example, several hinges can be fixedly connected to one edge of base 1 and the corresponding edge of plate 2. The fixed end of the hinge is welded or bolted to base 1, and the movable end is bolted to plate 2. The rotational opening and closing of plate 2 relative to base 1 is achieved through the rotational characteristics of the hinge.

[0024] The support mechanism 3 is installed between the base 1 and the plate 2. The support mechanism 3 includes a first connecting rod 31 connecting the base 1 and the plate 2, and a hydraulic structure 32 connecting the first connecting rod 31 and the plate 2. When the plate 2 is rotated and unfolded, it is supported by the hydraulic structure 32. The first link 31 is made of high-strength alloy steel. The two ends of the first link 31 are connected to the base 1 and the plate 2 respectively. The hydraulic structure 32 adopts a hydraulic component with bidirectional telescopic function. Its core function is to push and pull the first link 31 through hydraulic driving force, thereby supporting and resetting the plate 2.

[0025] When plate 2 is in the closed state, hydraulic structure 32 is in the retracted state. At this time, the first connecting rod 31 is attached to the inner side of plate 2 or base 1, which does not affect the closing and sealing of plate 2. When it is necessary to open plate 2, the operator manually pushes plate 2 to rotate. At this time, hydraulic structure 32 starts to extend synchronously. By pushing or pulling the first connecting rod 31, it provides auxiliary power for opening plate 2 and reduces the difficulty of opening for the operator.

[0026] When the plate 2 rotates to the preset unfolding angle, the hydraulic structure 32 extends to its maximum stroke and locks. At this time, the supporting force generated by the hydraulic structure 32 is transmitted to the plate 2 through the first connecting rod 31, keeping the plate 2 stably in the unfolded state. When it is necessary to close the plate 2, the retraction function of the hydraulic structure 32 pulls the first connecting rod 31 to move in the opposite direction, causing the plate 2 to gradually rotate and close until it is completely closed.

[0027] The monitoring mechanism 4 is installed on the plate 2 and is used to detect the situation inside the cable trench X1; the expulsion mechanism 5 is connected to the monitoring mechanism 4. When the monitoring mechanism 4 detects that a live animal has entered the cable trench X1, the expulsion mechanism 5 expels the live animal.

[0028] As an optional embodiment, a mounting rail 21 is installed on the plate 2. One end of the base 1 is rotatably connected to the mounting rail 21. One end of the first connecting rod 31 is rotatably connected to the end of the base 1 away from the mounting rail 21. The other end of the first connecting rod 31 is slidably connected to the mounting rail 21. A slider 33 is installed at the end of the first connecting rod 31. A groove 22 is provided on the mounting rail 21. The first connecting rod 31 is slidably connected to the mounting rail 21 through the slider 33 and the groove 22. The hydraulic structure 32 is a hydraulic rod. One end of the hydraulic rod is rotatably connected to the first connecting rod 31. The other end of the hydraulic rod is rotatably connected to the mounting rail 21. When the plate 2 is rotated and unfolded, the hydraulic rod can pull the first connecting rod 31 to rotate and support the plate 2.

[0029] In this embodiment, the rotational connection between the plate 2 and the base 1 is achieved by the mounting rail 21. The mounting rail 21 is fixedly installed on the plate 2, and then the mounting rail 21 is rotatably connected to the base 1, thereby achieving the effect of rotational connection between the plate 2 and the base 1.

[0030] Under normal conditions, plate 2 completely covers cable trench X1, and monitoring mechanism 4 monitors the status inside the trench in real time. When a live animal is detected to have entered, monitoring mechanism 4 triggers the start of expulsion mechanism 5, and stops after expulsion is completed and under monitoring feedback. When maintenance is required, plate 2 is pushed to open through the rotating structure of mounting rail 21 and base 1. The hydraulic rod of support mechanism 3 and the first connecting rod 31 work together to achieve stable support of plate 2. After maintenance is completed, the hydraulic rod retracts to drive plate 2 to close and reset.

[0031] As an optional embodiment, the monitoring mechanism 4 is an infrared probe with a detection angle of not less than 90 degrees, and the repulsion mechanism 5 is an ultrasonic generator.

[0032] The core reason for choosing an infrared probe as the monitoring device 4 is that it is suitable for the complex environment inside the cable trench X1, which is dark and may contain water or dust. Compared with visible light cameras, infrared probes can achieve accurate detection in the absence of light by detecting the infrared radiation emitted by the live animal itself. It is not affected by changes in ambient light. The pyroelectric sensor inside the infrared probe can sense changes in infrared radiation in the environment. When a live animal enters the detection range, the animal's body temperature and the ambient temperature form a significant temperature difference, causing a sudden change in the infrared radiation signal received by the sensor. The probe then determines that a live animal has entered and outputs an electrical signal to trigger subsequent deportation actions.

[0033] Ultrasound has a strong stimulating effect on live animals that commonly invade cable trenches X1, such as rodents and snakes. These animals' auditory systems are extremely sensitive to high-frequency ultrasound above 20kHz, which will produce stress responses such as agitation and fear, thus causing them to actively escape.

[0034] refer to Figures 4 to 5 The present invention also proposes a method for arranging incoming cable trenches in the high-voltage room of a substation, comprising the following steps: S1: Cable trench X1 is set up to connect the inside and outside of high-voltage chamber X2; cable trench X1 is a necessary channel for external cables to enter the high-voltage chamber X2.

[0035] S2: Multiple ordinary cover plates X3 are installed on the cable trench X1; the ordinary cover plates X3 provide basic shielding and protection, preventing external debris from falling into the trench and damaging the cables, while meeting daily covering needs, taking into account both practicality and economy.

[0036] S3: Arrange the smart cable trench cover as described above at the position where cable trench X1 is outside and closest to high-voltage chamber X2; the smart cable trench cover is arranged at the key position where cable trench X1 is outside and closest to high-voltage chamber X2, which is the necessary node for live animals to enter high-voltage chamber X2 from the outside.

[0037] S4: When the monitoring mechanism 4 on the smart cover of the cable trench detects that a live animal has entered the cable trench X1, the repelling mechanism 5 will drive the live animal away to prevent it from entering the transformer high-voltage chamber X2 through the cable trench X1.

[0038] The infrared sensor on the smart cover is installed on the lower surface of the plate 2, with a detection angle of not less than 90 degrees, which can effectively cover the area inside the cable trench X1. When the infrared sensor detects that a live animal such as a rat or snake has entered the cable trench X1, it transmits a trigger signal to the ultrasonic generator through a shielded cable to avoid electromagnetic interference in the cable trench X1 affecting the signal transmission. After receiving the signal, the ultrasonic generator starts immediately and emits a 25-40kHz adjustable ultrasonic wave. This frequency range covers the auditory sensitive frequency band of most common intruding animals, which will cause these animals to have a stress response of agitation and fear, thereby actively escaping the cable trench X1.

[0039] The monitoring mechanism 4 of the intelligent cable trench cover is installed at one corner of the plate body 2. The monitoring mechanism 4 can detect the inner wall of the cable trench X1. The intelligent cable trench cover is normally kept closed. When maintenance is required, the plate body 2 is rotated to obtain access space, which makes it easy for maintenance personnel to enter the cable trench X1.

[0040] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A smart cover for cable trenches, characterized in that: include, Base (1), said base (1) is installed in cable trench (X1); The plate (2) is rotatably mounted on the base (1); The support mechanism (3) is installed between the base (1) and the plate (2). The support mechanism (3) includes a first connecting rod (31) connecting the base (1) and the plate (2), and a hydraulic structure (32) connecting the first connecting rod (31) and the plate (2). When the plate (2) is rotated and unfolded, it is supported by the hydraulic structure (32). A monitoring device (4), which is installed on the plate (2), is used to detect the situation inside the cable trench (X1); The expulsion mechanism (5) is connected to the monitoring mechanism (4). When the monitoring mechanism (4) detects that a live animal has entered the cable trench (X1), the expulsion mechanism (5) expels the live animal.

2. The intelligent cable trench cover according to claim 1, characterized in that: An installation rail (21) is installed on the plate (2), and one end of the base (1) is rotatably connected to the installation rail (21).

3. The intelligent cable trench cover according to claim 2, characterized in that: One end of the first connecting rod (31) is rotatably connected to the end of the base (1) away from the mounting rail (21), and the other end of the first connecting rod (31) is slidably connected to the mounting rail (21).

4. The intelligent cable trench cover according to claim 3, characterized in that: The first connecting rod (31) is equipped with a slider (33) at its end, and a groove (22) is provided on the mounting rail (21). The first connecting rod (31) is slidably connected to the mounting rail (21) through the slider (33) and the groove (22).

5. The intelligent cable trench cover according to claim 1, characterized in that: The hydraulic structure (32) is a hydraulic rod. One end of the hydraulic rod is rotatably connected to the first connecting rod (31), and the other end of the hydraulic rod is rotatably connected to the mounting rail (21). When the plate (2) is rotated and unfolded, the hydraulic rod can pull the first connecting rod (31) to rotate and support the plate (2).

6. The intelligent cable trench cover according to claim 1, characterized in that: The monitoring mechanism (4) is an infrared probe, and the detection angle of the monitoring mechanism (4) is not less than 90 degrees.

7. The intelligent cable trench cover according to claim 6, characterized in that: The expulsion mechanism (5) is an ultrasonic generator.

8. A method for arranging incoming cable trenches in the high-voltage room of a substation, characterized in that: A cable trench (X1) is installed to connect the interior and exterior of the high-voltage room (X2); Multiple ordinary cover plates (X3) are arranged on the cable trench (X1); The cable trench smart cover as described in any one of claims 1 to 7 is arranged in the cable trench (X1) outside the high-voltage chamber (X2) and closest to the high-voltage chamber (X2); When the monitoring mechanism (4) on the smart cover of the cable trench detects that a live animal has entered the cable trench (X1), it drives the live animal away through the deflection mechanism (5) to prevent the live animal from entering the transformer high-voltage chamber (X2) through the cable trench (X1).

9. The method for arranging the incoming cable trench of the high-voltage room of a substation according to claim 8, characterized in that: The monitoring mechanism (4) of the intelligent cover plate for cable trench is installed at one corner of the plate body (2), and the monitoring mechanism (4) can monitor the inner wall of the cable trench (X1).

10. The method for arranging the incoming cable trench of the high-voltage room of a substation according to claim 8, characterized in that: The intelligent cover of the cable trench is normally kept closed. When maintenance is required, the access space is obtained by rotating the plate (2), which makes it easier for maintenance personnel to enter the cable trench (X1).

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