Relay protection pressing plate and relay protection equipment with same

Abstract

A relay protection pressing plate and relay protection equipment with the same are characterized in that a pressing plate column, a connecting column, a connecting plate and a voltage detection mechanism are arranged on a base of the relay protection pressing plate, and the pressing plate column and the connecting column each comprise a column body arranged on the base in a sliding mode in the vertical direction and a pressing block fixed to the upper end of the column body; the connecting plate is fixed to the base and provided with penetrating holes allowing the plate pressing column and column bodies of the connecting column to penetrate through, and the connecting plate can make contact with the two pressing blocks after the two column bodies slide downwards so that the plate pressing column can be connected with the connecting column. The connector comprises a rotating shaft fixed on the base and an arc-shaped reed of which the middle part is in running fit with the rotating shaft; and two ends of the arc-shaped reed are respectively fixed with a first detection contact of the first detector and a second detection contact of the second detector. The device is simple in structure, easy to implement and convenient for personnel to operate and implement.

Description

Technical Field

[0001] The present invention relates to the technical field of relay protection, and specifically to a relay protection pressure plate and a relay protection device having the pressure plate. Background Art

[0002] Relay protection boards are very important for the safe operation of the power grid. The pressure plate columns on the pressure plate and the connection columns are connected through a connection plate to realize the input of the pressure plate. In specific operations, it is necessary to measure the grounding voltages of the pressure plate column and the connection column and calculate their sum, and the pressure plate can be input only after the calculation result meets the standard. However, in actual implementation, some personnel often ignore the detection and calculation of the above grounding voltages and directly input the pressure plate, resulting in circuit failures.

[0003] To solve the above technical problems, CN202411191306.X discloses a relay protection pressure plate device and a relay protection device. By linking devices such as the pressure plate column, the connection column, the connection plate, the first detector, the second detector, and the display through a pressure plate mechanism, a detection mechanism, and a protection mechanism, it forces personnel to detect the grounding voltage before inputting the pressure plate, and the system calculates whether the sum of the grounding voltages meets the standard, and only after unlocking correspondingly when the standard is met can personnel connect the connection plate to the pressure plate column and the connection column to realize the input of the pressure plate.

[0004] In the implementation process of this technical solution, the process of inputting the pressure plate at least includes the following steps:

[0005] 1), A person twists the knob on the pressure plate column to raise the first connection disk. On the one hand, it makes the connection plate rotatably arranged on the pressure plate column disengage from the closed groove and be able to enter the open groove; on the other hand, it connects the pressure plate column and the connection column to the first detector and the second detector respectively, measures and calculates the sum of the grounding voltages, and controls the electric push rod to retract to unlock the retaining ring after the grounding voltage meets the standard;

[0006] 2), A person twists the knob on the connection plate to raise the second connection disk, so that the docking groove rises to the corresponding height of the connection plate;

[0007] 3), A person rotates the connection plate so that the clamping groove on the connection plate is hooked to the connection column through the docking groove;

[0008] 4), A person twists the knob on the pressure plate column. On the one hand, it presses the connection plate and the pressure plate column together, and on the other hand, it separates the first detector and the second detector respectively;

[0009] 5), A person twists the knob on the connection column to press the connection column and the connection plate together to complete the input of the pressure plate.

[0010] As can be easily seen from the above process, although it can avoid the occurrence of faults to a certain extent, the process of inserting the pressure plate of this technical solution is too complex and cumbersome, and the withdrawal process after the pressure plate is inserted needs to be executed in reverse according to the above steps. Considering its complex structure, it is not conducive to specific implementation and promotion and to achieving its positive effects. Summary of the Invention

[0011] The present invention aims to provide a relay protection pressure plate and a relay protection device having the pressure plate, which has a simple structure, is easy to implement and convenient for personnel to operate and implement.

[0012] To solve the above technical problems, the specific solution adopted by the present invention is as follows: A relay protection pressure plate includes a base, on which a pressure plate column, a connecting column, a connecting plate and a voltage detection mechanism are provided. The voltage detection mechanism includes a first detector for detecting the grounding voltage of the pressure plate column, a second detector for detecting the grounding voltage of the connecting column, a controller and a connector. The controller is used to calculate the sum of the grounding voltages of the pressure plate column and the connecting column and show it through a display screen. The connector is used to connect the pressure plate column to the first detector and the connecting column to the second detector during the process of connecting the pressure plate column and the connecting column through the connecting plate. Both the pressure plate column and the connecting column include a column body slidably arranged vertically on the base and a pressing block fixed at the upper end of the column body. The connecting plate is fixed on the base and has a perforation for the column bodies of the pressure plate column and the connecting column to pass through, and the connecting plate can contact the two pressing blocks after both column bodies slide downward to connect the pressure plate column and the connecting column;

[0013] The connector includes a rotating shaft fixed on the base and an arc-shaped spring piece rotatably matched with the rotating shaft in the middle. The two ends of the arc-shaped spring piece are respectively located below the two column bodies, and the two ends of the arc-shaped spring piece are respectively fixed with a first detection contact of the first detector and a second detection contact of the second detector. After pressing down the pressure plate column, the first detection contact can connect the pressure plate column to the first detector. After further pressing down the pressure plate column, the second detection contact can connect the connecting column to the second detector as the arc-shaped spring piece rotates around the rotating shaft. Finally, after pressing down the connecting column, the arc-shaped spring piece can be reversely deformed due to the thrusts received by its two ends from the two column bodies, so that the first detection contact and the second detection contact are respectively separated from the two column bodies.

[0014] Preferably, through holes distributed horizontally are provided at the bottoms of the column bodies. The through holes are for the ends of the arc-shaped spring piece to be inserted. The top of the through hole is used to contact the corresponding first detection contact or second detection contact, and the bottom of the through hole is used to pull up the two ends of the arc-shaped spring piece to make the arc-shaped spring piece rebound and reset during the upward movement of the two column bodies.

[0015] Preferably, a torsion spring is provided between the arc-shaped spring piece and the rotating shaft.

[0016] Preferably, an electric push rod is provided on the base. The cylinder body of the electric push rod is fixed on the base. A clamping groove for inserting the rod body of the electric push rod is provided on the connecting column. The electric push rod is connected to the controller. The controller can drive the rod body of the electric push rod to retract to unlock the connecting column after the sum of the grounding voltages of the pressure plate column and the connecting column measured by the first detector and the second detector reaches the standard.

[0017] Preferably, limiting blocks are fixedly provided below the base on the column bodies.

[0018] Preferably, sliding holes for the column bodies to slide fit are formed on the base, and a damping layer for cooperating with the outer wall of the column bodies is provided on the inner wall of the sliding holes.

[0019] Preferably, the outer edge of the pressure block is covered with an insulating material layer.

[0020] A relay protection device includes any one of the above relay protection pressure plates.

[0021] In the relay protection pressure plate of the present invention, the pressure plate column and the connecting column are slidably arranged vertically on the base, the connecting plate is fixed on the base, and the detection contacts of the first detector and the second detector in the voltage detection mechanism are reasonably arranged, so that when a person inserts the pressure plate, only by pressing the pressure plate column and the connecting column successively can the detection and calculation of the grounding voltage and the connection of the pressure plate column and the connecting column be realized. The operation process is simple and convenient, which is conducive to industry promotion.

[0022] In the preferred embodiment of the present invention, through holes for inserting the arc-shaped spring pieces in the connector are respectively provided at the lower ends of the pressure plate column and the connecting column. When pressing down the pressure plate column, through the extrusion cooperation between the top wall of the through hole and the end of the arc-shaped spring piece, the arc-shaped spring piece is automatically connected to the first detector and the second detector; when withdrawing the pressure plate, through the extrusion cooperation between the bottom of the through hole and the end of the arc-shaped spring piece, the arc-shaped spring piece is automatically reset, and the relay protection pressure plate of the present invention is also synchronously reset to the initial state, thereby further improving the convenience of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of Embodiment 1 of the relay protection pressure plate of the present invention;

[0024] Figure 2 is for pressing down Figure 1 the state schematic diagram after the pressure plate column in;

[0025] Figure 3 is for the lower edge Figure 2 the state schematic diagram after the connecting column in;

[0026] Figure 4 is a schematic structural diagram of Embodiment 2 of the relay protection pressure plate of the present invention;

[0027] Markings in the figure: 1. Connecting column, 2. Connecting plate, 3. Insulating material layer, 4. Pressing block, 5. Pressing plate column, 6. Column body, 7. Base, 8. Damping layer, 9. Limiting block, 10. First detection contact, 11. Through hole, 12. Flexible connecting wire, 13. Arc-shaped spring piece, 14. Rotating shaft, 15. Torsion spring, 16. Second detection contact, 17. Electric push rod, 18. Card slot. Specific implementation mode

[0028] The relay protection pressing plate of the present invention is described below through two embodiments. Except for having this relay protection pressing plate, the relay protection equipment of the present invention has the same structure as other relay protection equipment in the art and will not be described in detail.

[0029] Embodiment 1

[0030] As Figure 1 shown, what the relay protection pressing plate of this embodiment has in common with the technical solution of the patent document mentioned in the background art is that both have a base 7 for fixedly carrying components, and the base 7 is provided with a pressing plate column 5, a connecting column 1, a connecting plate 2 and a voltage detection mechanism.

[0031] Among them, the pressing plate column 5 and the connecting column 1 are respectively connected to the relay and the trip coil through the flexible connecting wire 12. The voltage detection mechanism includes a first detector, a second detector, a controller and a connector. One ends of the first detector and the second detector are both grounded, and the other ends are respectively provided with a first detection contact 10 and a second detection contact 16. The first detection contact 10 and the second detection contact 16 measure the grounding voltages of the pressing plate column 5 and the connecting column 1 respectively after being connected to the pressing plate column 5 and the connecting column 1 through the connector. The controller is signal-connected to the first detector and the second detector and can calculate the sum of the two grounding voltages, and then display it through the display screen it has, so as to enable personnel to judge whether it meets the pressing plate input condition.

[0032] What is different from the technical solution of the patent document mentioned in the background art is the connection method of the pressing plate column 5, the connecting column 1 and the connecting plate 2 and the connection method of the connector in this embodiment. Specifically:

[0033] In this embodiment, the pressing plate column 5 and the connecting column 1 are slidably arranged vertically on the base 7, and both have a cylindrical column body 6. The middle part of the column body 6 is in sliding fit with the sliding holes formed in the base 7. For the convenience of positioning, a damping layer 8 is provided in each sliding hole, and the damping layer 8 is in interference fit with the outer periphery of the column body 6. The upper ends of the column bodies 6 all have enlarged pressing blocks 4, and the connecting plate 2 is fixed on the upper edge of the base 7. Corresponding through holes for the two column bodies 6 to pass through are provided on the connecting plate 2, and the aperture of the through hole is smaller than the outer diameter of the pressing block 4, so that after the pressing plate column 5 and the connecting column 1 slide downwards respectively until the pressing blocks 4 contact the connecting plate 2, the pressing plate column 5 and the connecting column 1 are connected by the connecting plate 2. An insulating material layer 3 is also coated on the outer periphery of the pressing block 4 for personnel to operate. Transverse through holes 11 are provided at the bottom positions of the column bodies 6, and the through holes 11 are used to cooperate with the connector structure in the following voltage detection mechanism to realize the access or reset of the voltage detection mechanism.

[0034] The connector mainly includes a rotating shaft 14 fixed on the base 7 and an arc-shaped spring piece 13 whose middle part is in rotational fit with the rotating shaft 14. A sleeve in rotational fit with the rotating shaft 14 is fixedly provided at the central position of the arc-shaped spring piece 13, and a torsion spring 15 is sleeved on the rotating shaft 14 near the sleeve. The two ends of the torsion spring 15 are respectively fixedly connected with the rotating shaft 14 and the sleeve to maintain Figure 1 the initial state shown. In this initial state, the arc center of the spring piece is located above its own position. The two ends of the arc-shaped spring piece 13 respectively extend into the through holes 11 on the corresponding side, and neither of them is in contact with the hole wall of the through hole 11. The first detection contact 10 of the first detector is fixed at the right end of the arc-shaped spring piece 13, and the second detection contact 16 of the second detector is fixed at the right end of the arc-shaped spring piece 13.

[0035] Based on the above results, when this embodiment needs to insert the pressing plate, a total of two operations are required:

[0036] First, press down the pressing plate column 5 until Figure 2 the state shown. During the process, the top wall of the through hole 11 on the pressing plate column 5 first contacts the first detection contact 10, thereby connecting the pressing plate column 5 to the first detector. The first detector detects the grounding voltage of the pressing plate column 5 and sends it to the controller. As the pressing plate column 5 continues to descend, the right end of the arc-shaped spring piece 13 is subjected to a downward force and generates a clockwise rotation with the rotating shaft 14 as the center, so that the second detection contact 16 at the left end of the arc-shaped spring piece 13 abuts against the top wall of the through hole 11 of the connecting column 1, thereby connecting the connecting column 1 to the second detector. The first detector detects the grounding voltage of the pressing plate column 5 and sends it to the controller. As the pressing plate column 5 moves further downwards, the pressing block 4 of the pressing plate column 5 tightly presses on the connecting plate 2, and the arc-shaped spring piece deforms to Figure 2 the state shown.

[0037] The controller adds the two grounding voltages and shows them, and the operator judges whether the conditions for the relay being turned on are met. When the conditions for turning on are met, the operator directly presses down the connecting column 1 to Figure 3 the state shown. During the process, the left end of the arc-shaped spring piece 13 is further pressed down by the top wall of the through hole 11 of the connecting column 1, causing the overall deformation of the arc-shaped spring piece 13 to Figure 3 the state where the center of the arc is located below itself as shown. At this time, under the combined action of the torsion spring 15, both the first detection contact 10 and the second detection contact 16 are separated from the top wall of the relay column 5 and the through hole 11 of the connecting column 1, automatically disconnecting the working states of the first detector and the second detector. Figure 3 In [figure], the pressing block 4 of the connecting column 1 also tightly presses on the connecting plate 2, so that the relay column 5 and the connecting column 1 are connected through the connecting plate 2, realizing the operation of turning on the relay.

[0038] It can be easily seen from the above operation process of this embodiment that the operation of measuring voltage in this embodiment can be realized only by pressing down the relay column 5. After the voltage meets the conditions for turning on in this embodiment, only one more operation of pressing down the connecting column 1 needs to be added to realize it, making the process of turning on the relay convenient and fast. When turning off the relay, the operator only needs to pull up the relay column 5 and the connecting column 1, and then the end of the arc-shaped spring piece 13 can be pushed upward from the bottom of the through holes 11 of the relay column 5 and the connecting column 1, causing the arc-shaped spring piece 13 to rebound again with the center of the arc upward, so that the arc-shaped spring piece 13 automatically resets, and the relay protection relay of this embodiment also synchronously resets to Figure 1 the initial state shown, further improving the convenience of the present invention. To prevent the relay column 5 and the connecting column 1 from being pulled out upward during the reset process, limit blocks 9 with an outer diameter larger than the sliding holes are respectively provided on the column bodies 6 of the relay column 5 and the connecting column 1 at positions below the base 7.

[0039] Embodiment 2

[0040] As Figure 4 shown, the difference between this embodiment and Embodiment 1 is that an electric push rod 17 is provided on the base 7 at the left side position of the connecting column 1, its cylinder body is fixed on the base 7, and the rod body is horizontally distributed to the right. Correspondingly, a slot 18 for inserting the rod body of the electric push rod 17 is provided on the left side of the limit block 9 of the connecting column 1. The electric push rod 17 of this embodiment is connected to the controller. After the controller calculates the sum of the grounding voltages measured by the first detector and the second detector and judges that the conditions for turning on the relay are met, it can control the rod body of the electric push rod 17 to retract, thereby unlocking the connecting column 1 and enabling the operator to push down the connecting column 1. Based on the above structure and implementation method, problems caused by the operator forcibly turning on the relay when the conditions for turning on the relay are not met can be avoided.

Claims

1. A relay protection pressure plate, comprising a base (7), on which a pressure plate column (5), a connecting column (1), a connecting plate (2) and a voltage detection mechanism are arranged, wherein the voltage detection mechanism comprises a first detector for detecting the ground voltage of the pressure plate column (5), a second detector for detecting the ground voltage of the connecting column (1), a controller and a connector, wherein the controller is used to calculate the sum of the ground voltage of the pressure plate column (5) and the ground voltage of the connecting column (1) and to display the sum through a display screen, and the connector is used to connect the pressure plate column (5) to the first detector and to connect the connecting column (1) to the second detector during the process of connecting the pressure plate column (5) and the connecting column (1) through the connecting plate (2), characterized in that: The pressure plate column (5) and the connecting column (1) both include a column (6) vertically slidably arranged on a base (7) and a pressure block (4) fixed to the upper end of the column (6); the connecting plate (2) is fixed to the base (7) and has a through hole for the column (6) of the pressure plate column (5) and the connecting column (1) to pass through; and the connecting plate (2) can contact the two pressure blocks (4) after both the column (6) slide downward, so as to connect the pressure plate column (5) and the connecting column (1); The connector comprises a rotating shaft (14) fixed on a base (7) and an arc-shaped spring sheet (13) whose middle part is rotatably matched with the rotating shaft (14); the two ends of the arc-shaped spring sheet (13) are respectively located below the two pillars (6); and the two ends of the arc-shaped spring sheet (13) respectively fix the first detection contact (10) of the first detector and the second detection contact (16) of the second detector; after the pressure plate pillar (5) is pressed down, the first detection contact (10) can connect the pressure plate pillar (5) with the first detector; after the pressure plate pillar (5) is further pressed down, the second detection contact (16) can connect the connecting pillar (1) with the second detector as the arc-shaped spring sheet (13) rotates with the rotating shaft (14) as the center; finally, after the connecting pillar (1) is pressed down, the arc-shaped spring sheet (13) can be reversely deformed due to the thrust of the two pillars (6) at both ends, so that the first detection contact (10) and the second detection contact (16) are respectively separated from the two pillars (6).

2. A relay protection pressure plate as claimed in claim 1, characterized in that: The bottom of each column (6) is provided with transversely distributed through holes (11), the through holes (11) are used for inserting the ends of the arc-shaped spring pieces (13), the tops of the through holes (11) are used for contacting the corresponding first detection contacts (10) or second detection contacts (16), and the bottoms of the through holes (11) are used for pulling up the two ends of the arc-shaped spring pieces (13) during the upward movement of the two columns (6) so that the arc-shaped spring pieces (13) rebound and reset.

3. A relay protection pressure plate as claimed in claim 1, characterized in that: A torsion spring (15) is provided between the arc-shaped spring leaf (13) and the rotating shaft (14).

4. A relay protection pressure plate as claimed in claim 1, characterized in that: An electric push rod (17) is provided on the base (7), a cylinder body of the electric push rod (17) is fixed on the base (7), a slot (18) is provided on the connecting column (1) for inserting the rod body of the electric push rod (17), the electric push rod (17) is connected to a controller, and the controller can drive the rod body of the electric push rod (17) to retract to unlock the connecting column (1) after the sum of the ground voltages of the pressure plate column (5) and the connecting column (1) measured by the first detector and the second detector reaches a standard.

5. A relay protection pressure plate as claimed in claim 1, characterized in that: A limit block (9) is fixedly provided on the column (6) below the base (7).

6. A relay protection pressure plate as claimed in claim 1, characterized in that: The base (7) is provided with a sliding hole for the column (6) to slide with, and the inner wall of the sliding hole is provided with a damping layer (8) that cooperates with the outer wall of the column (6).

7. A relay protection pressure plate as claimed in claim 1, characterized in that: The outer edge of the pressing block (4) is covered with an insulating material layer (3).

8. A relay protection device according to claim 1, characterized in that: Including claims 1-7 Any one of the relay protection pressure plates described above.

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