Intermediate joint intelligent detection platform for power cable

Abstract

The utility model discloses an intermediate joint intelligent detection platform for a power cable in the field of detection equipment, which comprises a bedplate, a pressing mechanism and two testing mechanisms are arranged on the surface of the bedplate, and the two testing mechanisms are symmetrically distributed on two sides of the pressing mechanism; the pressing mechanism is provided with a pressing frame fixed on the surface of the platen, an upper pressing block and a lower pressing block which can move up and down after being driven and controlled are arranged in the pressing frame, at least two linear grooves used for clamping the cable intermediate joint are formed in the opposite surfaces of the upper pressing block and the lower pressing block, the linear grooves located in the upper pressing block and the lower pressing block are symmetrically distributed, and the left sides and the right sides of the linear grooves are communicated; the testing mechanisms are provided with sliding blocks which are driven and controlled to move left and right, the sliding blocks are connected with at least two testing rods which move synchronously, one end of each testing rod points to the pressing mechanism and can be inserted into one end of a cable intermediate joint for connection, and one end, far away from the pressing mechanism, of the testing rod of one testing mechanism is provided with a first power connection port. The detection platform can reduce detection difficulty, improve efficiency and reduce product damage.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to an intelligent detection platform for intermediate joints of power cables. Background Art

[0002] The cable intermediate joint is the most common connection method in the cable line. Its main function is to connect two different cables to ensure the smooth transmission of electric energy. This joint can conduct electric energy and at the same time protect the safety and stability of the cable line.

[0003] At present, two types of cable intermediate joints, namely cold shrinkable type and prefabricated type, used in global power transmission and transformation projects need to be detected at the time of factory for safety reasons. However, due to the complexity of cable installation, the difficulty of detecting a single cable intermediate joint is large, and the product is easily damaged after installation and detection. Therefore, it is impossible to conduct a full inspection on the high-voltage resistance (steady voltage test, destructive step-up test) and partial discharge of the cable intermediate joint. The undetected products are prone to cause the risk of power failure and network disconnection during later use, and are also prone to cause local faults to generate overload high voltage after installation. After the high voltage, high temperature combustion and explosion occur, leading to fire. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art solutions, the utility model provides an intelligent detection platform for intermediate joints of power cables, which can effectively solve the technical problems of large detection difficulty and easy damage to the detected products.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] The intelligent detection platform for intermediate joints of power cables includes a table board, and a pressing mechanism and two testing mechanisms are arranged on the surface of the table board. The two testing mechanisms are symmetrically distributed on both sides of the pressing mechanism;

[0007] The pressing mechanism is provided with a pressing frame fixed on the surface of the table board. An upper pressing block and a lower pressing block that can move up and down after being driven and controlled are arranged in the pressing frame. At least two linear grooves for clamping the cable intermediate joint are arranged on the opposite surfaces of the upper pressing block and the lower pressing block. The linear grooves on the upper pressing block and the lower pressing block are symmetrically distributed and are communicated on the left and right sides;

[0008] The testing mechanism is provided with a slider that can move left and right after being driven and controlled. The slider is connected with at least two testing rods that move synchronously. One end of the testing rod points to the pressing mechanism and can be inserted into one end of the cable intermediate joint for connection. A first power connection port is arranged at the end of the testing rod of one of the testing mechanisms far away from the pressing mechanism.

[0009] Furthermore, an upper pressing plate and a lower pressing plate that move up and down are arranged in the pressing frame;

[0010] A buffer plate is further provided below the upper pressure plate. A plurality of insertion rods that insert into and eject the upper pressure plate are connected to the top of the buffer plate, and a cap is connected to the ejecting end of the insertion rod. A spring member is also sleeved on the side of the insertion rod and is located between the upper pressure plate and the buffer plate. The upper pressure block is fixed to the bottom of the buffer plate, and a first driving cylinder for driving and controlling the movement of the upper pressure plate is connected to the top of the pressing frame.

[0011] The lower pressure block is fixed to the surface of the lower pressure plate, and a second driving cylinder for driving and controlling the movement of the lower pressure plate is connected to the bottom of the table plate.

[0012] Further, the cross-section of the linear groove is in a V-shaped structure.

[0013] Further, at least two linear slide rails fixed to the surface of the table plate are connected to the bottom of the slider, and a third driving cylinder for driving and controlling the movement of the slider on the linear slide rails is provided on one side of the table plate.

[0014] Further, an insulating plug is connected to the end of the test rod of the other test mechanism away from the pressing mechanism.

[0015] Further, a wire holder fixed to one side is also provided on the surface of the table plate. At least two second electrical connection ports for conducting electricity with the first electrical connection port are provided on one side of the wire holder, and a wire tube for leading wires to be connected to all the second electrical connection ports for conducting electricity is provided on the top of the wire holder.

[0016] Further, the surface and the bottom of the table plate are both connected with a sealed machine cover, and the machine cover is provided with at least one door leaf leading to the interior.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] The detection platform provided by the present utility model can place multiple cable intermediate joints at one time for synchronous detection during the detection process, and can also meet the use of cable intermediate joints of different specifications, reducing the detection difficulty. It not only effectively improves the overall detection rate, but also has a certain degree of versatility and flexibility. At the same time, the operation during detection has good connectivity, improving the overall stability and reducing product losses caused by the detection platform. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall external structure of an embodiment of the present utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0021] Figure 3 It is a schematic diagram of the overall pressing mechanism of an embodiment of the present utility model;

[0022] Figure 4This is the first schematic diagram of the internal structure of the pressing mechanism in the embodiment of the present utility model;

[0023] Figure 5 This is the second schematic diagram of the internal structure of the pressing mechanism in the embodiment of the present utility model;

[0024] Figure 6 This is the schematic diagram of the connection structure between the testing mechanism and the lead frame in the embodiment of the present utility model;

[0025] Figure 7 This is the schematic diagram of another testing mechanism structure in the embodiment of the present utility model;

[0026] Reference numerals in the figure:

[0027] 1 - platen, 2 - pressing mechanism, 3 - testing mechanism, 4 - lead frame, 5 - second power connection port, 6 - wire tube, 7 - machine cover, 8 - door leaf;

[0028] 201 - pressing frame, 202 - upper pressing block, 203 - lower pressing block, 204 - linear groove, 205 - upper pressing plate, 206 - lower pressing plate, 207 - buffer plate, 208 - insertion rod, 209 - retaining cap, 210 - spring member, 211 - first driving cylinder, 212 - second driving cylinder;

[0029] 301 - slider, 302 - testing rod, 303 - first power connection port, 304 - linear slide rail, 305 - third driving cylinder, 306 - insulating plug. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0031] Such as Figure 1-7As shown in the figure, the present utility model provides an intelligent detection platform for intermediate joints of power cables. This platform can test multiple cable intermediate joints at one time through the energization method of electrical performance. Its structure includes a table board 1 for test operation and a machine cover 7 for sealing the internal test position. The machine cover 7 is divided into two parts, which separately seal the upper and lower parts of the table board 1, and also form a better grounding method, effectively improving the safety during the test. At the same time, multiple doors 8 are provided on the surfaces of the upper and lower machine covers 7, which is convenient for replacing the cable intermediate joints to be detected and for maintaining the entire device. After this detection platform is used in conjunction with the PLC industrial control system, once the door 8 is opened, the power supply inside can be cut off through this system, improving safety. Moreover, the sealing performance of the machine cover 7 reduces the risk of high-voltage electric arcs in the electrical performance during product detection.

[0032] On the surface of the table board 1, there is a pressing mechanism 2 and two testing mechanisms 3. Among them, the two testing mechanisms 3 are symmetrically distributed on both sides of the pressing mechanism 2. During the process of the cable intermediate joint, first, the pressing mechanism 2 is used to fix multiple cable intermediate joints, and then the two testing mechanisms 3 on both sides are connected to both ends of the cable intermediate joint synchronously or asynchronously to form a conductive effect. For the entire operation, except for replacing the cable intermediate joints to be tested, it can be used in conjunction with the PLC industrial control system to form an automated operation, which can save a large amount of manpower and has high efficiency.

[0033] In the pressing mechanism 2, the pressing mechanism 2 is provided with a pressing frame 201 fixed on the surface of the table board 1. Inside the pressing frame 201, there are an upper pressing block 202 and a lower pressing block 203 that can move up and down after being driven and controlled. The cable intermediate joint to be detected is clamped and fixed by the upper pressing block 202 and the lower pressing block 203. To avoid causing unnecessary consequences when connecting with the cable intermediate joint, both the upper pressing block 202 and the lower pressing block 203 are made of insulating materials. To better fix the cable intermediate joint so that it does not move after being placed, four linear grooves 204 are provided on the contact surface of the upper pressing block 202 and the lower pressing block 203. The four linear grooves 204 extend on both the left and right sides. The cross-section of the linear groove 204 is in a V-shaped structure, and both sides of it are electrically connected to the side surface of the upper pressing block 202 or the lower pressing block 203, facilitating the connection of both sides of the cable intermediate joint with the testing mechanism 3.

[0034] In the pressing frame 2, in order to better fix and control the upper pressing block 202 and the lower pressing block 203, an upper pressing plate 205 and a lower pressing plate 206 that move up and down are also provided in the pressing frame 201. A buffer plate 207 is also provided below the upper pressing plate 205. Among them, the upper pressing block 202 is directly fixed to the bottom of the buffer plate 207 and a detachable structure is formed between the two. After the upper pressing plate 205 is connected to the buffer plate 207, the buffer plate 207 is driven to move after the upper pressing plate 205 moves. The lower pressing block 203 is directly fixed to the surface of the lower pressing plate 206 and a detachable structure is formed between the two. The position of the lower pressing block 203 is synchronously adjusted after the lower pressing plate 206 moves. When in use, the user can also replace the upper pressing block 202 and the lower pressing block 203 with other specified pressing blocks to test the use of cable joints of different types (10KV\20KV\25KV\33KV\36KV), meeting multi-purpose use.

[0035] When connecting, the four corners of the upper pressing plate 205 are inserted into the pressing frame 201 and move up and down under the guidance of the pressing frame 201 to prevent the moving position from shifting. Four upward insertion rods 208 are connected to the top of the buffer plate 207. The insertion rods 208 are inserted into the upper pressing plate 205 and extend upward after being ejected. A retaining cap 209 to prevent falling off is provided at the ejected end. At this time, the insertion rods 208 can slide freely between the upper pressing plate 205. In addition, a spring member 210 is sleeved on the side of the insertion rod 208 between the upper pressing plate 205 and the buffer plate 207. The spring member 210 forms a buffering effect between the upper pressing plate 205 and the buffer plate 207, avoiding deformation of the cable joint clamped due to excessive downward pressure of the upper pressing plate 205. A first driving cylinder 211 for providing driving power is also provided at the top of the pressing frame 201. The output end of the first driving cylinder 211 is connected to the upper pressing plate 205 and controls its up and down movement. Through the movement of the upper pressing plate 205, the upper pressing block 202 is driven to move at the same time to complete the clamping or loosening operation.

[0036] A second driving cylinder 212 for driving and controlling the lower pressing plate 206 is assembled at the bottom of the table plate 1. The height of the lower pressing plate 206 can be adjusted through the second driving cylinder 212, so as to synchronously adjust the height of the cable joint placed by the lower pressing block 203, enabling the test rods 302 of the two-side test mechanisms to be smoothly connected and conduct electricity.

[0037] The testing mechanism 3 is provided with a slider 301 that drives and controls the movement of the left and right sides. The slider 301 is connected to four test rods 302 that move synchronously. One end of the test rod 302 points to the pressing mechanism 2 and can be inserted into one end of the cable intermediate joint for connection. The two testing mechanisms 3 on both sides can choose to move towards the pressing mechanism 2 synchronously or asynchronously. When moving, as the internal slider 301 moves, the four test rods 302 are driven synchronously to insert into the side of the cable intermediate joint for contact. In order to better control the movement of the slider 301, two linear slide rails 304 fixed on the surface of the platen 1 are connected to the bottom of the slider 301, and a third driving cylinder 305 for driving and controlling the movement of the slider 301 on the linear slide rail 304 is additionally provided on one side of the platen 1. After the test rods 302 on the two testing mechanisms 3 on both sides come into contact with the cable intermediate joint, power is supplied for testing.

[0038] During the power-on test, the test rod 302 on one of the testing mechanisms 3 on one side is used for power connection. A first power connection port 303 for power connection is provided at the end of the test rod 302 away from the pressing mechanism 2, while an insulating plug 306 is assembled at the end of the test rod 302 on the other testing mechanism 3 away from the pressing mechanism 2 or is directly encapsulated in the slider 301 for insulation treatment.

[0039] In addition, a wire rack 4 is fixed on one side of the surface of the platen 1. Four second power connection ports 5 for conducting electricity and connecting with the first power connection port 303 are provided on one side of the wire rack 4. A wire tube 6 for leading wires and connecting with all the second power connection ports 5 for conducting electricity is provided at the top of the wire rack 4. The user can access wires from one end of the wire tube 6 and conduct electricity connection with the four second power connection ports 5 at the same time. Conductive connection is made between the second power connection port 5 and the first power connection port 303 to complete the power supply during the test. By wiring through the wire rack 4, the internal wires are prevented from being disordered, and the wire tube 6 on the wire rack 4 can be directly extended to the outside of the machine cover 7 to control the power supply, which also ensures the sealing performance inside the machine cover 7 during the test.

[0040] During use, the cable intermediate joint to be debugged is placed in the linear groove 204 on the surface of the lower pressing block 203. The height of the lower pressing plate 206 is adjusted so that the cable intermediate joint is at the same height as the test rods 302 on both sides, and then it is tightly clamped and fixed by the upper pressing block 202. The test rods 302 on both sides move towards the pressing mechanism 2 and connect to both ends of the cable intermediate joint. At this time, high-voltage electricity is provided to the test rod 302 with the first power connection port 303 through the wire rack 4 for testing. Before the test, the surface of the cable intermediate joint and the test rods 302 on both sides are subjected to insulation treatment. The user can also connect a transformer to change the voltage during the test to detect the cable intermediate joint under different voltages.

[0041] Compared with the traditional technology, in the detection process of this technical solution, multiple cable joints can be placed at one time for synchronous detection, and it can also meet the use of cable joints of different specifications, reducing the detection difficulty. It not only effectively improves the overall detection rate, but also has a certain degree of generality and flexibility. At the same time, the operation connection during detection is good, improving the overall stability and reducing product losses caused by the detection platform.

[0042] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An intelligent detection platform for intermediate joints of power cables, including a table board, characterized in that: The surface of the table is provided with a clamping mechanism and two testing mechanisms, and the two testing mechanisms are symmetrically distributed on both sides of the clamping mechanism; The clamping mechanism is provided with a clamping frame fixed on the surface of the table, and the clamping frame is provided with an upper clamping block and a lower clamping block which can move up and down after driving control, and the upper clamping block and the lower clamping block are provided with at least two linear grooves for clamping the intermediate joint of the cable on opposite sides, and the linear grooves located on the upper clamping block and the lower clamping block are symmetrically distributed and conductive on the left and right sides; The testing mechanism is provided with a slider which moves on the left and right sides after being driven and controlled, and the slider is connected to at least two testing rods which move synchronously, one end of the testing rod points to the clamping mechanism and can be inserted into one end of the middle connector of the cable for connection, and a first electrical port is provided at the end of the testing rod of the testing mechanism which is away from the clamping mechanism.

2. The intelligent detection platform for the intermediate joint of the power cable according to claim 1, characterized in that: The pressing frame is provided with an upper pressing plate and a lower pressing plate which move up and down; A buffer plate is also provided below the upper pressure plate, a plurality of plug rods for inserting and ejecting the upper pressure plate are connected to the top of the buffer plate, and a card cap is connected to one end of the plug rod, a spring member between the upper pressure plate and the buffer plate is also sleeved on the side of the plug rod, the upper pressure block is fixed to the bottom of the buffer plate, and a first driving cylinder for driving and controlling the movement of the upper pressure plate is connected to the top of the clamping frame; The lower pressing block is fixed on the surface of the lower pressing plate, and the bottom of the platform is connected to a second driving cylinder for driving and controlling the movement of the lower pressing plate.

3. The intelligent detection platform for the intermediate joint of the power cable according to claim 1, wherein: The cross section of the linear groove is a V-shaped structure.

4. The intelligent detection platform for the intermediate joint of the power cable according to claim 1, wherein: The bottom of the slider is connected to at least two linear slide rails fixed on the surface of the table, and one side of the table is provided with a third driving cylinder for driving and controlling the slider to move on the linear slide rails.

5. The intelligent detection platform for intermediate joints of power cables according to claim 1, characterized in that: Another end of the test rod of the test mechanism away from the clamping mechanism is connected with an insulating plug.

6. The intelligent detection platform for the intermediate joint of the power cable according to claim 1, characterized in that: The surface of the table is also provided with a wire rack fixed on one side, one side of the wire rack is provided with at least two second electrical ports for connecting to the first electrical port for electrical conduction, and the top of the wire rack is provided with a wire tube for connecting the lead wires to all the second electrical ports for electrical conduction.

7. The intelligent detection platform for the intermediate joint of the power cable according to claim 1, wherein: The surface and the bottom of the platform are both connected with a sealed machine cover, and the machine cover is provided with at least one door leaf leading to the interior.

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