A monitoring device for low-voltage terminal lines

Abstract

This utility model discloses a monitoring device for low-voltage terminal lines, including a backplate. Two positioning rods are fixedly connected to one side of the backplate. The two positioning rods are fitted with the same voltage sensor. Positioning holes are opened at both ends of the voltage sensor, and the positioning holes are adapted to the positioning rods. First fixing plates are fixedly connected to both ends of the backplate near the positioning rods. Two circular holes are opened on the first fixing plates, and circular rods are installed in the circular holes. The two circular rods at the same end are fixedly connected to the same first connecting plate. Fixing seats are fixedly connected to the two first connecting plates on their opposite sides, and rollers are rotatably connected to the fixing seats. The two circular rods at the same end are fixedly connected to the same baffle on the side away from the first connecting plate. The baffle is located on one side of the voltage sensor. This utility model allows for quick assembly and disassembly, is simple to operate, facilitates maintenance and replacement of the voltage sensor, effectively improves maintenance efficiency, and reduces downtime.

Description

Technical Field

[0001] This utility model relates to the field of voltage monitoring technology, and in particular to a monitoring device for low-voltage terminal lines. Background Technology

[0002] Low-voltage terminal lines in a distribution box refer to low-voltage power lines from the distribution box output to the final point of use. They typically include wires or cables connecting the output terminals of the distribution box to various electrical devices, sockets, lights, etc. In order to detect voltage abnormalities in a timely manner and prevent equipment damage and personal safety accidents, voltage monitoring of low-voltage terminal lines in the distribution box is necessary. Voltage sensors are generally used to monitor the voltage. However, most existing monitoring devices for low-voltage terminal lines still have problems that need to be solved.

[0003] In most existing low-voltage terminal line monitoring equipment, voltage sensors are typically installed on the inner wall of the distribution box by screws. If subsequent maintenance, debugging, or replacement of the sensor is required, the small internal space of the distribution box makes it difficult to loosen the screws, and it may be necessary to disassemble the distribution box, which is time-consuming, labor-intensive, and difficult to maintain. Therefore, it is urgent to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a monitoring device for low-voltage terminal lines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A monitoring device for low-voltage terminal lines includes a backplate. Two positioning rods are fixedly connected to one side of the backplate. The two positioning rods are fitted with the same voltage sensor. Positioning holes are formed at both ends of the voltage sensor, and these holes are adapted to the positioning rods. Two first fixing plates are fixedly connected to both ends of the backplate near the positioning rods. Each first fixing plate has two circular holes, and a circular rod is installed within each hole. Two circular rods at the same end are fixedly connected to the same first connecting plate. Fixing seats are fixedly connected to the two first connecting plates on their opposite sides, and rollers are rotatably connected to the fixing seats. A baffle is fixedly connected to the two circular rods at the same end on the side away from the first connecting plate. The baffle is located on one side of the voltage sensor. Guide plates are provided on the opposite sides of the two rollers. One side of the roller has a vertical and an inclined plane. Due to the use of a positioning rod and baffles to restrict the position of the voltage sensor, after the voltage sensor is positioned on the positioning rod, lowering the voltage sensor causes the two baffles to move closer together, thus blocking one side of the voltage sensor and restricting its position. This effectively solves the problem mentioned in the background art that in most existing low-voltage terminal line monitoring equipment, voltage sensors are generally fixed to the inner wall of the distribution box with screws. Subsequent maintenance, debugging, or replacement of the sensor may require disassembling the distribution box due to the limited internal space, which is time-consuming, labor-intensive, and difficult to maintain. This design achieves quick disassembly and assembly, simple operation, and convenient maintenance and replacement of the voltage sensor, effectively improving maintenance efficiency and reducing downtime.

[0007] Preferably, the guide plate has two fixed rods fixedly connected to one side near the back plate, and the four fixed rods are fixedly connected to the same distribution box.

[0008] Preferably, a base plate is fixedly connected to the bottom of the back plate, and two guide rods are fixedly connected to the bottom of the base plate. The bottom of the two guide rods is fixedly connected to the same second connecting plate.

[0009] Preferably, the two guide rods are fitted with the same second fixing plate, the guide rods are slidably connected to the second fixing plate, and the second fixing plate is fixedly connected to the inner wall of the distribution box.

[0010] Preferably, the bottom of the second fixing plate is fixedly connected to two cylinders, the cylinders are sleeved on the guide rod, the guide rod is slidably connected to the cylinders, the cylinders are sleeved with springs, and the springs are sleeved on the guide rod.

[0011] Preferably, the voltage sensor is electrically connected to a PLC programmable controller via a wire. The PLC programmable controller is installed inside the distribution box, and the output terminal of the terminal line of the equipment inside the distribution box is connected to the current input terminal interface of the voltage sensor.

[0012] The beneficial effects of this utility model are as follows:

[0013] By employing a positioning rod and baffles to restrict the position of the voltage sensor, after positioning the voltage sensor on the positioning rod, lowering the voltage sensor allows the two baffles to approach each other, thus blocking one side of the voltage sensor and restricting its position. This effectively solves the problem mentioned in the background art: in most existing low-voltage terminal line monitoring equipment, voltage sensors are generally fixed to the inner wall of the distribution box with screws. Subsequent maintenance, debugging, or replacement of the sensor requires disassembling the distribution box due to its limited internal space, making screw tightening difficult and time-consuming. This solution achieves quick disassembly and assembly, simple operation, and convenient maintenance and replacement of the voltage sensor, effectively improving maintenance efficiency and reducing downtime. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a monitoring device for low-voltage terminal lines proposed in this utility model;

[0015] Figure 2 This is a partial structural schematic diagram of a monitoring device for a low-voltage terminal line proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the voltage sensor structure of a monitoring device for a low-voltage terminal line proposed in this utility model.

[0017] Figure 4 This is a partial unfolded structural diagram of a monitoring device for a low-voltage terminal line proposed in this utility model.

[0018] In the diagram: 1. Back plate; 2. Positioning rod; 3. Voltage sensor; 4. Positioning hole; 5. First fixing plate; 6. Round hole; 7. Round rod; 8. First connecting plate; 9. Fixing seat; 10. Roller; 11. Baffle; 12. Guide plate; 13. Fixing rod; 14. Distribution box; 15. Base plate; 16. Second fixing plate; 17. Guide rod; 18. Second connecting plate; 19. Spring; 20. Cylinder; 21. PLC programmable controller. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-4 A monitoring device for low-voltage terminal lines includes a backplate 1. Two positioning rods 2 are fixedly connected to one side of the backplate 1. The two positioning rods 2 are fitted with the same voltage sensor 3. Positioning holes 4 are opened at both ends of the voltage sensor 3, and the positioning holes 4 are adapted to the positioning rods 2. The backplate 1 has two first fixing plates 5 fixedly connected to both ends on the side near the positioning rods 2. The first fixing plates 5 have two circular holes 6. Circular rods 7 are installed in the circular holes 6. The two circular rods 7 at the same end are fixedly connected to the same first connecting plate 8. The two first connecting plates 8 are fixedly connected to fixing seats 9 on the side away from each other. Rollers 10 are rotatably connected to the fixing seats 9. The two circular rods 7 at the same end are fixedly connected to the same baffle 11 on the side away from the first connecting plate 8. The baffle 11 is located on one side of the voltage sensor 3. The two rollers 10 are provided with guide plates 12 on the side away from each other. On the side near roller 10, 12 has a vertical and an inclined plane. Due to the use of a positioning rod and baffles to restrict the position of the voltage sensor, after the voltage sensor is positioned on the positioning rod, lowering the voltage sensor will bring the two baffles closer together, thus blocking one side of the voltage sensor and restricting its position. This effectively solves the problem mentioned in the background art that in most existing low-voltage terminal line monitoring equipment, the voltage sensor is usually fixed to the inner wall of the distribution box by screws. If subsequent maintenance, debugging, or replacement of the sensor is required, the small space inside the distribution box makes it inconvenient to tighten the screws, which may require disassembling the distribution box, which is time-consuming, labor-intensive, and difficult to maintain. This design achieves quick disassembly and assembly, simple operation, and convenient maintenance and replacement of the voltage sensor, effectively improving maintenance efficiency and reducing downtime.

[0021] In this utility model, the guide plate 12 is fixedly connected to two fixing rods 13 on the side near the back plate 1, and the four fixing rods 13 are fixedly connected to the same distribution box 14.

[0022] In this utility model, a base plate 15 is fixedly connected to the bottom of the back plate 1, and two guide rods 17 are fixedly connected to the bottom of the base plate 15. The bottom of the two guide rods 17 is fixedly connected to the same second connecting plate 18.

[0023] In this utility model, two guide rods 17 are fitted with the same second fixing plate 16. The guide rods 17 are slidably connected to the second fixing plate 16, and the second fixing plate 16 is fixedly connected to the inner wall of the distribution box 14. When the guide rods 17 move, they will move along the second fixing plate 16 to ensure the stability of the guide rods 17 when they move.

[0024] In this utility model, two cylinders 20 are fixedly connected to the bottom of the second fixing plate 16. The cylinders 20 are sleeved on the guide rod 17, and the guide rod 17 is slidably connected to the cylinders 20. The cylinders 20 are sleeved with springs 19, and the springs 19 are sleeved on the guide rod 17. The elastic force of the springs 19 enables the rollers 10 to be stably positioned on one side of the vertical plane of the guide plate 12, so that the baffle 11 is always blocked on one side of the voltage sensor 3.

[0025] In this utility model, the voltage sensor 3 is electrically connected to the PLC programmable controller 21 via wires. The PLC programmable controller 21 is installed inside the distribution box 14. The output terminal of the terminal line of the equipment inside the distribution box 14 is connected to the current input terminal interface of the voltage sensor 3.

[0026] Working principle: During use, the current in the terminal line of the equipment in the distribution box 14 will pass through the voltage sensor 3. The voltage sensor 3 will monitor the voltage and transmit the collected voltage data to the PLC programmable controller 21. The PLC programmable controller 21 will determine whether the alarm conditions are met. If they are met, the PLC programmable controller 21 will activate the alarm device in the distribution box 14. When assembling the voltage sensor 3, align the positioning hole 4 on the voltage sensor 3 with the positioning rod 2 and put it on the positioning rod 2. This will raise the voltage sensor 3 a certain distance, which will then drive the positioning rod 2 to rise. 2 will cause the back plate 1 to rise, the back plate 1 will cause the first fixed plate 5 to rise, the first fixed plate 5 will cause the round rod 7 to rise, the round rod 7 will cause the first connecting plate 8 to rise, the first connecting plate 8 will cause the fixed seat 9 to rise, and the fixed seat 9 will cause the roller 10 to rise. Moving the roller 10 from the vertical surface of the guide plate 12 to the inclined surface position will move the baffle 11 so that the two baffles 11 move away from each other. Then, push the voltage sensor 3 so that the voltage sensor 3 contacts the back plate 1, and then lower the voltage sensor 3 so that the roller 10 can move along the inclined surface of the guide plate 12, which will bring the two baffles 11 closer together. When the roller 10 moves to the vertical position of the guide plate 12, the baffle 11 can block one side of the voltage sensor 3. Through the cooperation of the positioning rod 2 and the baffle 11, the position of the voltage sensor 3 can be restricted, and the voltage sensor 3 can be installed. When the back plate 1 rises, it will drive the bottom plate 15 to rise. The bottom plate 15 will drive the guide rod 17 to rise along the second fixed plate 16 and the cylinder 20. The guide rod 17 will drive the second connecting plate 18 to rise. The second connecting plate 18 will compress the spring 19, causing the spring 19 to contract. When the bottom plate 15 descends, the contracted spring 19 will gradually extend. Through the elastic force of the spring 19, To ensure that the bottom of the base plate 15 is always in contact with the top of the second fixed plate 16 when not affected by external forces, and to ensure that the baffle 11 is stably positioned on one side of the voltage sensor 3, and to ensure that the voltage sensor 3 is in a stable position, when the voltage sensor 3 needs to be disassembled for maintenance, disconnect the wire connection, support the voltage sensor 3 to raise the voltage sensor 3, so that the roller 10 can move back to the inclined surface of the guide plate 12, and then move the two baffles 11 back to move them away from each other and no longer block one side of the voltage sensor 3, so that the voltage sensor 3 can be removed from the positioning rod 2 for maintenance or replacement.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A monitoring device for low-voltage end-of-line, comprising a backplane (1), characterized in that, Two positioning rods (2) are fixedly connected to one side of the back plate (1). The two positioning rods (2) are fitted with the same voltage sensor (3). The voltage sensor (3) has positioning holes (4) at both ends. The positioning holes (4) are adapted to the positioning rods (2). The back plate (1) has two fixed plates (5) fixedly connected to both ends on the side near the positioning rods (2). The first fixed plate (5) has two round holes (6). Round rods (7) are installed in the round holes (6). The two round rods (7) at the same end are fixedly connected to the same... The first connecting plate (8) has a fixed base (9) fixedly connected to each other on the side away from each other. The fixed base (9) is rotatably connected to a roller (10). The two round rods (7) at the same end are fixedly connected to the same baffle (11) on the side away from the first connecting plate (8). The baffle (11) is set on one side of the voltage sensor (3). The two rollers (10) are provided with guide plates (12) on the side away from each other. The guide plates (12) are vertical and inclined on the side close to the rollers (10).

2. The monitoring device of a low-pressure end line according to claim 1, characterized in that, The guide plate (12) has two fixed rods (13) fixedly connected to one side near the back plate (1), and the four fixed rods (13) are fixedly connected to the same distribution box (14).

3. The monitoring device of a low-pressure end line according to claim 2, characterized in that, The bottom of the back plate (1) is fixedly connected to a base plate (15), and the bottom of the base plate (15) is fixedly connected to two guide rods (17), and the bottom of the two guide rods (17) is fixedly connected to the same second connecting plate (18).

4. The monitoring device of a low-pressure end line according to claim 3, characterized in that, The two guide rods (17) are fitted with the same second fixing plate (16), the guide rods (17) are slidably connected to the second fixing plate (16), and the second fixing plate (16) is fixedly connected to the inner wall of the distribution box (14).

5. The monitoring device of a low-pressure end line according to claim 4, characterized in that, The bottom of the second fixing plate (16) is fixedly connected to two cylinders (20), the cylinders (20) are sleeved on the guide rod (17), the guide rod (17) is slidably connected to the cylinders (20), the cylinders (20) are sleeved with springs (19), and the springs (19) are sleeved on the guide rod (17).

6. The monitoring equipment for low-voltage terminal lines according to claim 1, characterized in that, The voltage sensor (3) is electrically connected to a PLC programmable controller (21) via a wire. The PLC programmable controller (21) is installed inside a distribution box (14). The output terminal of the terminal line of the equipment inside the distribution box (14) is connected to the current input terminal interface of the voltage sensor (3).

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