A cable joint monitoring and early warning device

Abstract

The utility model discloses a cable joint monitoring early warning device, including monitoring equipment main part, installation frame and connecting plate, installation frame is in the position of monitoring equipment main part and connecting plate middle, and monitoring equipment main part, installation frame and connecting plate all are vertical setting, installation frame and connecting plate between install same support subassembly, support subassembly includes two extension pipes through hinged rotary connection in the outer wall of installation frame one side close to connecting plate, the outer wall of connecting plate one side close to installation frame is hinged rotary connection with two extension rods, and two extension pipes and two extension rods hinged position are in the side edge corner position of each other close -to, and two extension rods are inserted in two extension pipes inside respectively, the utility model discloses a support subassembly can support monitoring equipment main part to extend to the position of waiting for installation, and can adjust its position at will according to need, guarantee equipment main part can reach the best installation position.

Description

Technical Field

[0001] This utility model relates to the field of cable monitoring technology, specifically a cable joint monitoring and early warning device. Background Technology

[0002] As a key component in power transmission and distribution systems, cable joints directly affect the safety and reliability of the power grid. However, due to the long-term exposure to high voltage, high current, mechanical stress, and environmental corrosion, cable joints are prone to problems such as localized overheating, insulation aging, and increased contact resistance, ultimately leading to joint failure or even fire accidents.

[0003] A search revealed a utility model patent with Chinese patent publication number CN218825754U, which discloses an online monitoring and early warning device for cable joints, belonging to the field of cable monitoring and early warning technology. The online monitoring and early warning device for cable joints includes a signal collector, a high-frequency current collector, an ultra-high frequency sensor, a smoke sensor, and a temperature sensor. The signal collector is communicatively connected to a background monitoring platform, and the high-frequency current collector, ultra-high frequency sensor, smoke sensor, and temperature sensor are all connected to the signal collector.

[0004] If the aforementioned device needs to be installed close to the cable connector, and the installation environment inside the cabinet does not meet the requirements, it is inevitable that additional brackets will be needed, making the installation process inconvenient and leaving room for improvement. Utility Model Content

[0005] The purpose of this invention is to provide a cable joint monitoring and early warning device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cable joint monitoring and early warning device, comprising a monitoring equipment body, a mounting frame, and a connecting plate. The mounting frame is located between the monitoring equipment body and the connecting plate, and the monitoring equipment body, mounting frame, and connecting plate are all vertically arranged. A common support assembly is installed between the mounting frame and the connecting plate. The support assembly includes two extension tubes rotatably connected to the outer wall of the mounting frame near the connecting plate via hinges. Two extension rods are rotatably connected to the outer wall of the connecting plate near the mounting frame via hinges. The hinge positions of the two extension tubes and the two extension rods are respectively located at adjacent corner positions. The two extension rods are slidably inserted into the two extension tubes. The two extension tubes and the two extension rods are equipped with the same limiting structure. The limiting structure includes several insertion holes one, two insertion holes two, and a limiting pin.

[0007] As a further preferred embodiment of this technical solution, several of the first insertion holes are respectively opened inside the two extension tubes, and two second insertion holes are respectively opened inside the two extension rods near the mounting frame. The several first insertion holes and the two second insertion holes are all vertically arranged, and the two second insertion holes are respectively connected to the two first insertion holes. The limiting pin is simultaneously slidably inserted into the two second insertion holes and the two corresponding first insertion holes inside the two extension tubes.

[0008] It can support the main body of the monitoring equipment to extend to the installation position and can adjust its position as needed to ensure that the main body of the equipment can reach the optimal installation position. First, flip the two extension tubes outward. When the extension tubes contact the mounting frame, they will remain vertical under the restriction of the mounting frame. Then, insert the limit pin into the first insertion hole of the extension tube. The two extension tubes will remain in a stable parallel state. Repeat the operation to flip the two extension rods and support them. Then, insert the two extension rods into the two extension tubes respectively. The two extension tubes and two extension rods restrict each other and will not flip inward, thus forming a stable structure. After adjusting the mounting frame to the vicinity of the cable joint, pass the limit pin through the first and second insertion holes to restrict the extension tubes and extension rods together, and the installation process is completed.

[0009] As a further preferred embodiment of this technical solution, a clamping component is installed inside the mounting frame, and the main body of the monitoring device is located inside the clamping component.

[0010] As a further preferred embodiment of this technical solution, the clamping assembly includes a bidirectional lead screw rotatably connected to the inside of the mounting frame and arranged horizontally. A movable seat is threadedly connected to the threaded portion on both sides of the bidirectional lead screw. Two limiting guide rails are fixedly installed on the top and bottom inner walls of the mounting frame. The two movable seats are slidably connected to the outside of the two limiting guide rails. A vertically arranged restraining sleeve is fixedly connected to the outer wall of the two movable seats on the side closest to the main body of the monitoring device. The two restraining sleeves are slidably fitted onto the outside of the main body of the monitoring device.

[0011] If it is necessary to remove the main body of the monitoring device from the clamping assembly, the double-acting screw can be turned by rotating the knob. Since the double-acting screw is threadedly connected to the two moving seats, as the double-acting screw rotates, the two moving seats will move away from each other along the two limit guide rails. The restraint sleeve on the outside of the moving seats will no longer wrap around the main body of the monitoring device, and it can be easily removed.

[0012] As a further preferred embodiment of this technical solution, a receiving plate is fixedly connected to the bottom of the outer wall of each of the two restraint sleeves that are close to each other, and both receiving plates are horizontally arranged.

[0013] As a further preferred embodiment of this technical solution, the thread helix angle of the external thread groove of the bidirectional lead screw is smaller than the equivalent friction angle.

[0014] As a further preferred embodiment of this technical solution, a vertically arranged limiting support is fixedly connected to the inner wall of the top of the limiting pin, and the limiting support is slidably inserted into the middle position of the two extension tubes.

[0015] As a further preferred embodiment of this technical solution, four through holes are provided inside both the mounting frame and the connecting plate.

[0016] This utility model provides a cable joint monitoring and early warning device, which has the following beneficial effects:

[0017] (1) By setting up a support component, this utility model can support the main body of the monitoring equipment to extend to the installation position and can adjust its position as needed to ensure that the main body of the equipment can reach the optimal installation position. First, flip the two extension tubes outward. When the extension tubes and the mounting frame are in contact, they will remain vertical under the restriction of the mounting frame. Then, insert the limiting pin into the insertion hole one of the extension tubes. The two extension tubes will remain in a stable parallel state. Repeat the operation to flip the two extension rods and support them. Then, insert the two extension rods into the two extension tubes respectively. The two extension tubes and the two extension rods restrict each other and will not flip inward, thus forming a stable structure. After adjusting the mounting frame to extend to the vicinity of the cable joint, pass the limiting pin through the insertion hole one and the insertion hole two to restrict the extension tubes and extension rods together, and the installation process can be completed.

[0018] (2) By setting up a clamping assembly, if it is necessary to remove the main body of the monitoring device from the clamping assembly, the double-acting screw can be rotated by using a knob. Since the double-acting screw is threadedly connected to the two moving seats, as the double-acting screw rotates, the two moving seats will move away from each other along the two limit guide rails, and the binding sleeve outside the moving seats will no longer wrap around the main body of the monitoring device, so it can be easily removed. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0021] Figure 3 This is an enlarged structural schematic diagram of the clamping component of this utility model;

[0022] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0023] In the diagram: 1. Main body of monitoring equipment; 2. Mounting frame; 3. Connecting plate; 4. Through hole; 5. Clamping assembly; 6. Support assembly; 501. Moving seat; 502. Restraint sleeve; 503. Two-way lead screw; 504. Limiting guide rail; 505. Receiving plate; 601. Extension tube; 602. Extension rod; 603. Insertion hole one; 604. Insertion hole two; 605. Limiting pin; 606. Limiting support. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] This utility model provides a technical solution: such as Figure 2 and Figure 4 As shown, in this embodiment, a cable joint monitoring and early warning device includes a monitoring device body 1 (hardware components: sensor module: integrated temperature sensor (PT100), Hall current sensor and impedance detection unit; main control unit: ARM Cortex-M4 processor, supporting real-time data parsing and storage; communication module: optional 4G / LoRa wireless transmission or RS485 wired interface; power module: supports DC 24V input or solar power supply (optional). Monitoring principle: temperature monitoring: the surface temperature of the joint is collected by an attached PT100 sensor; current monitoring: the cable load current is measured non-contactly using the Hall effect; impedance analysis: a high-frequency weak signal is injected, and the contact resistance is calculated through the voltage-current phase difference. During installation, the temperature sensor is placed close to the joint contact surface, occupying the least space (such as the side of the bolt head); the Hall sensor surrounds the cable body, located 10-15cm downstream of the joint to avoid magnetic field interference; the impedance analysis module has a sampling resistor close to the joint and a Rogowski coil far from the joint, forming a "contact + non-contact" mixed measurement area.), mounting frame 2 and connecting plate 3, with the mounting frame 2 located between the monitoring device body 1 and the connecting plate 3. The monitoring equipment body 1, mounting frame 2, and connecting plate 3 are all vertically arranged. A common support component 6 is installed between the mounting frame 2 and the connecting plate 3. The support component 6 includes two extension tubes 601 that are rotatably connected to the outer wall of the mounting frame 2 near the connecting plate 3 via hinges. Two extension rods 602 are rotatably connected to the outer wall of the connecting plate 3 near the mounting frame 2 via hinges. The hinge positions of the two extension tubes 601 and the two extension rods 602 are respectively located at the corners of each other. The two extension rods 602 are slidably inserted into the two extension tubes 601. The two extension tubes 601 and the two extension rods 602 are equipped with the same limiting structure, which includes several insertion holes 603, two insertion holes 604, and a limiting pin 605.

[0026] Several insertion holes 603 are respectively opened inside the two extension tubes 601, and two insertion holes 604 are respectively opened inside the two extension rods 602 near the mounting frame 2. The insertion holes 603 and the two insertion holes 604 are all vertically arranged, and the two insertion holes 604 are respectively connected to the two insertion holes 603. The limiting pins 605 are simultaneously slidably inserted into the two insertion holes 604 and the two corresponding insertion holes 603 inside the two extension tubes 601.

[0027] First, flip the two extension tubes 601 outwards. When the extension tubes 601 contact the mounting frame 2, they will remain vertical under the constraint of the mounting frame 2. Then, insert the limiting pin 605 into the insertion hole 603 of the extension tube 601. The two extension tubes 601 will remain in a stable parallel state. Repeat the operation to flip the two extension rods 602 and support them. Then, insert the two extension rods 602 into the two extension tubes 601 respectively. The two extension tubes 601 and the two extension rods 602 restrict each other and will not flip inwards, thus forming a stable structure. After adjusting the mounting frame 2 to the vicinity of the cable connector, pass the limiting pin 605 through the insertion hole 603 and the insertion hole 604 to restrict the extension tubes 601 and the extension rods 602 together, and the installation process is completed.

[0028] like Figure 2 and Figure 3 As shown, a clamping assembly 5 is installed inside the mounting frame 2, and the main body 1 of the monitoring device is located inside the clamping assembly 5.

[0029] The clamping assembly 5 includes a bidirectional lead screw 503 rotatably connected to the inside of the mounting frame 2 and arranged horizontally. A movable seat 501 is threadedly connected to the threaded portions on both sides of the bidirectional lead screw 503. Two limiting guide rails 504 are fixedly installed on the top and bottom inner walls of the mounting frame 2. The two movable seats 501 are slidably connected to the outside of the two limiting guide rails 504. A vertically arranged restraining sleeve 502 is fixedly connected to the outer wall of the two movable seats 501 on the side close to the main body 1 of the monitoring device. The two restraining sleeves 502 are slidably sleeved on the outside of the main body 1 of the monitoring device.

[0030] If it is necessary to remove the main body 1 of the monitoring device from the clamping assembly 5, the double-acting screw 503 can be rotated using the knob. Since the double-acting screw 503 is threadedly connected to the two moving seats 501, as the double-acting screw 503 rotates, the two moving seats 501 will move away from each other along the two limit guide rails 504, and the restraint sleeve 502 outside the moving seats 501 will no longer wrap around the main body 1 of the monitoring device, and it can be easily removed.

[0031] like Figure 1 and Figure 3As shown, a support plate 505 is fixedly connected to the bottom of the outer wall of each of the two restraint sleeves 502 that are close to each other, and both support plates 505 are horizontally set. When the restraint sleeve 502 no longer wraps around the main body 1 of the monitoring device, it will still be on top of the support plate 505 and will not fall off. In addition, during installation, the main body 1 of the monitoring device can be placed on top of the two support plates 505, and then the main body 1 of the monitoring device and the outer wall of the moving seat 501 can be pushed to fit together, so that the subsequent fitting process of the restraint sleeve 502 can be carried out smoothly.

[0032] like Figure 3 As shown, the thread helix angle of the external thread groove of the bidirectional lead screw 503 is less than the equivalent friction angle, giving it a self-locking property, thereby ensuring that the positions of the two movable seats 501 connected to it will not change due to external forces.

[0033] like Figure 1 and Figure 2 As shown, a vertically arranged limiting support 606 is fixedly connected to the inner wall of the top of the limiting pin 605. The limiting support 606 is slidably inserted in the middle of the two extension tubes 601, which can further support the two extension tubes 601 and make their vertical state more stable.

[0034] like Figure 2 and Figure 3 As shown, four through holes 4 are provided inside the mounting frame 2 and the connecting plate 3. If the position between the inner wall of the external distribution cabinet and the cable connector is suitable for the installation of the main body 1 of the monitoring equipment, the mounting frame 2 and the distribution cabinet can be directly connected and fixed by bolts. If the distance between the inner wall of the distribution cabinet and the cable connector is too large, the connecting plate 3 and the distribution cabinet can be connected by bolts through the through holes 4.

[0035] This utility model provides a cable joint monitoring and early warning device, the specific working principle of which is as follows:

[0036] When the device is working, if the position between the inner wall of the external distribution cabinet and the cable connector is suitable for the installation of the main body 1 of the monitoring equipment, the mounting frame 2 and the distribution cabinet can be directly connected and fixed with bolts. If the distance between the inner wall of the distribution cabinet and the cable connector is too large, the connecting plate 3 and the distribution cabinet can be connected by bolts through the through hole 4. First, flip the two extension tubes 601 outwards. When the extension tubes 601 contact the mounting frame 2, they will remain vertical under the restriction of the mounting frame 2. Then, insert the limit pin 605 into the insertion hole 603 of the extension tube 601. The two extension tubes 601 will remain in a stable parallel state. Then repeat the operation to flip the two extension rods 602, and... Support the two extension rods 602, and then insert the two extension rods 602 into the two extension tubes 601 respectively. The two extension tubes 601 and the two extension rods 602 restrict each other and will not flip inward, thus forming a stable structure. After adjusting the mounting frame 2 to the vicinity of the cable connector, pass the limiting pin 605 through the first insertion hole 603 and the second insertion hole 604 to restrict the extension tubes 601 and the extension rods 602 together, and the installation process is completed. Since the extension tubes 601 and the mounting frame 2 are rotatable with respect to the connecting plate 3 and the extension rods 602, it can be ensured that the mounting frame 2 and the connecting plate 3 can be retracted during storage and will not occupy too much space.

[0037] If it is necessary to remove the main body 1 of the monitoring device from the clamping assembly 5, the double-acting screw 503 can be rotated using the knob. Since the double-acting screw 503 is threadedly connected to the two moving seats 501, as the double-acting screw 503 rotates, the two moving seats 501 will move away from each other along the two limit guide rails 504. The restraining sleeve 502 outside the moving seat 501 will no longer wrap around the main body 1 of the monitoring device, and it can be easily removed. When the restraining sleeve 502 no longer wraps around the main body 1 of the monitoring device, it will still be on top of the receiving plate 505 and will not fall off. Furthermore, during installation, the main body 1 of the monitoring device can be placed on top of the two receiving plates 505, and then the main body 1 of the monitoring device and the outer wall of the moving seat 501 can be pushed to fit together, so that the subsequent fitting process of the restraining sleeve 502 can proceed smoothly.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable joint monitoring and early warning device, comprising a monitoring device main body (1), a mounting frame (2) and a connecting plate (3), characterized in that: The mounting frame (2) is located between the main body (1) of the monitoring equipment and the connecting plate (3), and the main body (1), the mounting frame (2) and the connecting plate (3) are all vertically arranged. The same support component (6) is installed between the mounting frame (2) and the connecting plate (3). The support component (6) includes two extension tubes (601) that are rotatably connected to the outer wall of the mounting frame (2) near the connecting plate (3) by hinges. The outer wall of the connecting plate (3) near the mounting frame (2) is connected to two extension rods (602) by hinges. The hinge positions of the two extension tubes (601) and the two extension rods (602) are respectively located at the corners of each other. The two extension rods (602) are slidably inserted into the two extension tubes (601). The two extension tubes (601) and the two extension rods (602) are equipped with the same limiting structure. The limiting structure includes several insertion holes one (603), two insertion holes two (604) and a limiting pin (605).

2. The cable joint monitoring and early warning device according to claim 1, characterized in that: Several of the aforementioned sockets 1 (603) are respectively opened inside the two extension tubes (601), and two of the aforementioned sockets 2 (604) are respectively opened inside the two extension rods (602) near the end of the mounting frame (2). The several of the aforementioned sockets 1 (603) and the two sockets 2 (604) are all vertically arranged, and the two sockets 2 (604) are respectively connected to the two sockets 1 (603). The limiting pin (605) is simultaneously slidably inserted into the two sockets 2 (604) and the two corresponding sockets 1 (603) inside the two extension tubes (601).

3. The cable joint monitoring and early warning device of claim 1, wherein: The mounting frame (2) is equipped with a clamping assembly (5), and the main body (1) of the monitoring device is located inside the clamping assembly (5).

4. The cable joint monitoring and early warning device of claim 3, wherein: The clamping assembly (5) includes a bidirectional lead screw (503) rotatably connected to the inside of the mounting frame (2) and arranged horizontally. A movable seat (501) is threadedly connected to the threaded portion on both sides of the bidirectional lead screw (503). Two limiting guide rails (504) are fixedly installed on the inner walls of the top and bottom of the mounting frame (2). The two movable seats (501) are slidably connected to the outside of the two limiting guide rails (504). A vertically arranged restraining sleeve (502) is fixedly connected to the outer wall of the two movable seats (501) on the side close to the main body (1) of the monitoring device. The two restraining sleeves (502) are slidably sleeved on the outside of the main body (1) of the monitoring device.

5. The cable joint monitoring and warning device of claim 4, wherein: Each of the two restraint sleeves (502) has a support plate (505) fixedly connected to the bottom of the outer wall of the side that is close to each other, and both support plates (505) are horizontally arranged.

6. The cable joint monitoring and warning device of claim 4, wherein: The thread helix angle of the external thread groove of the bidirectional lead screw (503) is less than the equivalent friction angle.

7. The cable joint monitoring and warning device of claim 1, wherein: The upper inner wall of the limiting pin (605) is fixedly connected to a vertically arranged limiting support (606), which is slidably inserted into the middle position of the two extension tubes (601).

8. The cable joint monitoring and warning device of claim 1, wherein: The mounting frame (2) and the connecting plate (3) are both provided with four through holes (4).

Images