Five-prevention interlocking device of IP65 sealing mechanism

Abstract

The utility model relates to the technical field of five-prevention interlocking, and discloses a five-prevention interlocking device of an IP65 sealing mechanism. The five-prevention interlocking device comprises a circuit breaker opening and closing indication board, an opening baffle, an isolation operation shaft, an isolation operation shaft cam, a closing baffle, a closing button, an opening button, an isolation indication board, a grounding operation shaft, a hook baffle and a hook structure. The isolation operation shaft cam is installed on the isolation operation shaft, the hook baffle is installed on the grounding operation shaft, the two ends of the closing baffle and the two ends of the opening baffle are slidably installed on the circuit breaker and the isolation switch, the upper end of the closing baffle corresponds to the closing button, and the lower end of the closing baffle abuts against the isolation operation shaft cam. The upper end of the opening baffle abuts against the circuit breaker opening and closing indication board, the lower end of the opening baffle can shield the isolation operation shaft, the isolation indication board can shield the isolation operation shaft and the grounding operation shaft, and the grounding operation shaft and the hook baffle are both matched with the hook structure. According to the utility model, the electric shock risk of workers can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of five-protection interlocking, in particular to a five-protection interlocking device of an IP65 sealing mechanism. Background Art

[0002] Prior art discloses a compact spring-operated mechanism and air-insulated ring main unit (CN220357984U) that includes a circuit breaker, earthing switch, and disconnector. However, these mechanisms lack interoperability, requiring operators to operate them in a specific sequence to ensure proper operation of the air-insulated ring main unit and avoid the risk of electric shock. This requires a certain level of operator proficiency, but the risk cannot be completely eliminated. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a five-protection interlocking device for an IP65 sealing mechanism.

[0004] The purpose of the utility model is achieved through the following technical solutions: a five-protection interlocking device of an IP65 sealing mechanism includes a circuit breaker opening and closing indicator plate, an opening baffle, a closing baffle, a closing button, an opening button, an isolation indicator plate, an isolation operation component, a grounding operation component and a hook structure, wherein the circuit breaker opening and closing indicator plate, the closing button and the opening button are all arranged on the circuit breaker, the isolation operation component and the isolation indicator plate are all arranged on the isolating switch, the grounding operation component is arranged on the grounding switch, the circuit breaker is provided with a circuit breaker sealing plate, the isolating switch and the grounding switch are provided with an isolating switch sealing plate, the hook structure is installed on the isolating switch sealing plate, the closing baffle is slidable The circuit breaker sealing plate and the isolating switch sealing plate are slidably mounted on the circuit breaker sealing plate and the isolating switch sealing plate, the upper end of the closing baffle corresponds to the closing button, the lower end of the closing baffle abuts against the isolating operation component, the opening baffle is slidably mounted on the circuit breaker sealing plate and the isolating switch sealing plate, the upper end of the opening baffle abuts against the circuit breaker opening and closing indicator plate, the isolating operation component includes an isolating operation shaft and an isolating operation shaft cam, the grounding operation component includes a grounding operation shaft and a hook baffle, the lower end of the opening baffle can be blocked by the isolating operation shaft, the isolation indicator plate can be blocked by the isolating operation shaft and the grounding operation shaft, and the grounding operation component matches the hook structure.

[0005] A more preferred option is that the isolation operating shaft cam is installed on the isolation operating shaft, the isolation operating shaft is provided on the isolation switch, and the isolation operating shaft cam abuts against the lower end of the closing baffle.

[0006] More preferably, the hook baffle is installed on the grounding operating shaft, the grounding operating shaft is provided on the grounding switch, and the hook baffle corresponds to the hook structure.

[0007] A better choice is that the hook structure includes a door chain hook, an operating shaft baffle and a hook mounting seat, the hook mounting seat is installed on the isolating switch sealing plate, the door chain hook can be slidably installed on the hook mounting seat up and down, one end of the operating shaft baffle is connected to the door chain hook, and the other end of the operating shaft baffle and the door chain hook both correspond to the grounding operating component.

[0008] A more preferred option also includes a counter, which is installed on the circuit breaker sealing plate and connected to the circuit breaker opening and closing indicator plate.

[0009] A more preferred option also includes an energy storage operating shaft, which is arranged on the circuit breaker.

[0010] A more preferred option also includes an energy storage indicator sign, which is arranged on the circuit breaker and corresponds to the energy storage operating axis.

[0011] A more preferred option further includes a first spring, and the closing baffle is connected to the circuit breaker sealing plate through the first spring.

[0012] A more preferred option further includes a second spring, and the opening baffle is connected to the circuit breaker sealing plate through the second spring.

[0013] The present invention has the following advantages and beneficial effects compared to the prior art:

[0014] The utility model can establish linkage between the circuit breaker, the isolating switch and the grounding switch through the circuit breaker opening and closing indicator plate, the opening baffle, the closing baffle, the closing button, the opening button, the isolation indicator plate, the isolation operation component, the grounding operation component and the hook structure, so that the air-insulated ring network cabinet can operate smoothly and normally, and the risk of electric shock to the staff can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a five-protection interlocking device of an IP65 sealing mechanism of the utility model (operation step 1 during power supply);

[0016] Figure 2 This is a schematic diagram of a five-protection interlocking device (operation step 2 during power supply) of an IP65 sealing mechanism of the present invention;

[0017] Figure 3 This is a schematic diagram of a five-protection interlocking device (operation step three during power supply) of an IP65 sealing mechanism of the present invention;

[0018] Figure 4 This is a schematic diagram of a five-protection interlocking device (operation step 1 during power outage) of an IP65 sealing mechanism of the present invention;

[0019] Figure 5 This is a schematic diagram of a five-protection interlocking device (operation step 2 during power outage) of an IP65 sealing mechanism of the present invention;

[0020] Figure 6 This is a schematic diagram of a five-protection interlocking device (operation step three during power outage) of an IP65 sealing mechanism of the present invention;

[0021] Markings of the components in the accompanying drawings: 1-circuit breaker sealing plate; 2-counter; 3-circuit breaker opening and closing indicator; 4-opening baffle; 5-isolating operating shaft; 6-isolating operating shaft cam; 7-closing baffle; 8-closing button; 9-energy storage indicator; 10-opening button; 11-isolating indicator; 12-grounding operating shaft; 13-hook baffle; 14-door interlock hook; 15-operating shaft baffle; 16-hook mounting base; 17-energy storage operating shaft; 18-isolating switch sealing plate. DETAILED DESCRIPTION

[0022] The utility model object of the utility model is further described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described one by one here, but the implementation methods of the utility model are not limited to the following embodiments.

[0023] like Figure 1-6As shown, a five-protection interlocking device with an IP65 sealing mechanism includes a circuit breaker sealing plate 1, a counter 2, a circuit breaker opening and closing indicator 3, an opening baffle 4, a closing baffle 7, a closing button 8, an energy storage indicator 9, an opening button 10, an isolation indicator 11, an energy storage operating shaft 17, an isolating switch sealing plate 18, a hook structure, an isolation operating assembly, and a grounding operating assembly. The isolation operating assembly includes an isolation operating shaft 5 and an isolation operating shaft cam 6. The grounding operating assembly includes a grounding operating shaft 12 and a hook baffle 13. The hook structure includes a door interlock hook 14, an operating shaft baffle 15, and a hook mounting seat 16. The circuit breaker opening and closing indicator 3, the closing button 8, the energy storage indicator 9, the opening button 10, and the energy storage operating shaft 17 are all arranged on the circuit breaker (which belongs to the prior art), the isolation operating shaft 5 and the isolation indicator 11 are arranged on the isolating switch (which belongs to the prior art), and the grounding operating shaft 12 is arranged on the grounding switch (which belongs to the prior art). A circuit breaker sealing plate 1 is provided on the side of the circuit breaker, and an isolating switch sealing plate 18 is provided on the side of the isolating switch and the grounding switch. The circuit breaker sealing plate 1 and the isolating switch sealing plate 18 are on the same plane. The circuit breaker sealing plate 1 is located above the isolating switch sealing plate 18. The counter 2 is installed on the upper part of the circuit breaker sealing plate 1, and the counter 2 is connected to the circuit breaker opening and closing indicator 3. The circuit breaker opening and closing indicator 3 is rotatably mounted in the middle of the circuit breaker sealing plate 1. The opening button 10 is located in the middle of the circuit breaker sealing plate 1 and is located on one side of the circuit breaker opening and closing indicator 3. The energy storage indicator 9 is located on the right side of the middle of the circuit breaker sealing plate 1. The closing button 8 is located in the lower middle part of the circuit breaker sealing plate 1 and is located directly below the opening button 10. The closing damper 7 is mounted on the circuit breaker sealing plate 1, movably mounted thereon. It is connected to the circuit breaker sealing plate 1 via a first spring (not shown). Under the action of the first spring, the closing damper 7 moves toward the isolation operating shaft 5. The upper end of the closing damper 7 can be embedded in the closing button 8, limiting its pressing. The lower end of the closing damper 7 abuts the isolation operating shaft cam 6 on the isolation operating shaft 5. The opening damper 4 is located outside the closing damper 7 and is mounted on the circuit breaker sealing plate 1, movably mounted thereon. The opening damper 4 is connected to the circuit breaker sealing plate 1 via a second spring (not shown). Under the action of the second spring, the opening damper 4 moves upward, that is, it approaches the circuit breaker opening and closing indicator 3. The upper end of the opening damper 4 abuts the circuit breaker opening and closing indicator 3, and the lower end of the opening damper 4 can cover directly above the isolation operating shaft 5. The isolation operating shaft 5 controls the opening and closing of the disconnector. It is located above the disconnector sealing plate 18, and the isolation operating shaft cam 6 is mounted on the isolation operating shaft 5. An isolation indicator sign 11 is located below the isolation operating shaft 5, in the middle of the disconnector sealing plate 18. The isolation indicator sign 11 can be positioned directly above the grounding operating shaft 12 or directly above the isolation operating shaft 5.The grounding operating shaft 12 is located below the isolating switch sealing plate 18 and below the isolating indicator plate 11. A hook stop 13 is mounted on the grounding operating shaft 12 and, driven by the grounding operating shaft 12, can rotate relative to the isolating switch sealing plate 18. A door interlock hook 14 is mounted on a hook mounting base 16 for vertical movement. An operating shaft stop 15 is connected to the middle of the door interlock hook 14. The upper end of the door interlock hook 14 can abut against the hook stop 13. The operating shaft stop 15 can cover directly above the grounding operating shaft 12.

[0024] The circuit breaker sealing plate 1 protects the circuit breaker and mounts various components. The counter 2 counts and displays the number of times the circuit breaker has been opened and closed. The circuit breaker opening and closing indicator 3 pushes the opening baffle 4, thereby blocking the isolating operating shaft 5 and preventing its operation. The opening baffle 4 is L-shaped and blocks the isolating operating shaft 5. The isolating operating shaft 5 controls the opening and closing of the isolating switch. The isolating operating shaft cam 6 pushes the closing baffle 7, causing it to engage with the closing button 8, preventing it from being pressed. The closing baffle 7 is L-shaped and restricts the pressing of the closing button 8. The closing button 8 controls the closing of the circuit breaker. After the energy storage operating shaft 17 rotates a certain number of times, the straight end of the energy storage indicator 9 transitions from a horizontal position to an inclined position toward the upper left, indicating that the elastic potential energy is fully stored. The opening button 10 controls the opening of the circuit breaker. The isolation indicator plate 11 is used to block the isolation operating shaft 5 or the grounding operating shaft 12, making the isolation operating shaft 5 or the grounding operating shaft 12 unable to operate. The grounding operating shaft 12 is used to control the opening or closing of the grounding switch. The hook baffle 13 is used to simultaneously press the door chain hook 14 when the grounding operating shaft 12 is in the open position. The door chain hook 14 is used to lock the cable compartment door. The operating shaft baffle 15 is used to simultaneously block the grounding operating shaft 12 when the door chain hook 14 moves upward, making the grounding operating shaft 12 unable to operate. The hook mounting seat 16 is used to install the door chain hook 14. The energy storage operating shaft 17 is used to rotate clockwise through a wrench, and uses a spring to store energy to provide power for pulling the contact displacement when the circuit breaker is closed and opened. The isolating switch sealing plate 18 seals the isolating switch.

[0025] Description of the power-on operation process of a five-protection interlocking device with an IP65 sealing mechanism:

[0026] Step 1: If Figure 1As shown, when power is supplied, the cable compartment door is in the closed state, the door interlock hook 14 moves downward, and the operating shaft baffle 15 on the door interlock hook 14 moves downward at the same time, and the operating shaft baffle 15 moves downward from directly above the grounding operating shaft 12. The operating shaft baffle 15 no longer covers the grounding operating shaft 12, and the grounding operating shaft 12 can be operated. Use a wrench to rotate the grounding operating shaft 12 counterclockwise, that is, the grounding switch is in the open state, and the grounding operating shaft 12 drives the hook baffle 13 to rotate from right to left. The hook baffle 13 presses the top of the door interlock hook 14, and at the same time the isolation indicator 11 rotates clockwise, and the isolation indicator 11 moves away from being blocked directly above the isolation operating shaft 5. The isolation indicator 11 is in a rightward horizontal state, and the isolation operating shaft 5 is no longer blocked, and the isolation operating shaft 5 can be operated, and the isolation switch is in the open state. At this time, the isolation operating shaft cam 6 presses against the lower end of the closing baffle 7, and the closing baffle 7 moves upward relative to the circuit breaker sealing plate 1. The upper end of the closing baffle 7 is embedded in the closing button 8, and the closing button 8 cannot be pressed. The circuit breaker is in the open state and cannot be operated. The circuit breaker opening and closing indicator 3 is in a left horizontal state, that is, the circuit breaker opening and closing indicator 3 does not push the upper end of the opening baffle 4. Under the action of the spring, the lower end of the opening baffle 4 moves upward, and the opening baffle 4 does not block the isolation operating shaft 5, that is, the isolation operating shaft 5 is in an operable state. Its purpose is to put the grounding switch in the open state and the door interlock hook 14 locks the cable compartment door to prevent the cable compartment door from being opened under power. The isolation operating shaft 5 of the isolation switch can only be operated when the grounding operating shaft 12 is in the open state. The isolation switch is in the open state and the closing button 8 is blocked by the closing baffle 7 and cannot be pressed normally.

[0027] Step 2: If Figure 2 As shown, use a wrench to rotate the isolation operating shaft 5 clockwise, that is, the isolating switch is in the closed state, the isolation operating shaft 5 drives the isolation operating shaft cam 6 to rotate clockwise, and the straight end of the isolation operating shaft cam 6 changes from the left state to the upward horizontal state, that is, the isolating switch is in the closed state, the isolation operating shaft cam 6 no longer pushes the closing baffle 7, and the closing baffle 7 moves downward relative to the circuit breaker sealing plate 1. The upper end of the closing baffle 7 is separated from the closing button 8, and the closing button 8 can be pressed normally. At the same time, the isolation indicator plate 11 rotates clockwise, and the isolation indicator plate 11 blocks the grounding operating shaft 12 directly above, and the grounding operating shaft 12 cannot be operated. The purpose is to ensure that the circuit breaker can be closed only when the isolating switch is in the closed state, and the grounding operating shaft 12 cannot be operated at the same time.

[0028] Step 3: If Figure 3As shown, when the closing button 8 is pressed, the circuit breaker opening / closing indicator plate 3 rotates counterclockwise downward, pushing the upper end of the opening baffle plate 4. The opening baffle plate 4 moves downward relative to the circuit breaker sealing plate 1. The lower end of the opening baffle plate 4 moves directly above the isolation operating shaft 5, blocking the isolation operating shaft 5 and making it inoperable. The purpose is to ensure that power is supplied when the circuit breaker is in the closed state and that the isolation operating shaft 5 cannot be operated, thereby preventing the disconnector from being operated in the closed state.

[0029] Description of the power outage operation process of a five-protection interlocking device with an IP65 sealing mechanism:

[0030] Step 1: If Figure 4 As shown, during a power outage, the circuit breaker is in the open state. The circuit breaker opening and closing indicator 3 rotates horizontally to the left, and the circuit breaker opening and closing indicator 3 no longer pushes the upper end of the opening baffle 4. The lower end of the opening baffle 4 no longer blocks the isolation operating shaft 5, allowing the isolation operating shaft 5 to operate the disconnector. This allows the disconnector to be operated while the circuit breaker is in the open state. At this time, the disconnector is in the closed state, with the straight end of the isolation operating shaft cam 6 on the isolation operating shaft 5 facing upward and horizontal. The isolation operating shaft cam 6 does not push the lower end of the closing baffle 7, and the upper end of the closing baffle 7 is separated from the closing button 8, allowing the closing button 8 to be pressed normally. The grounding switch is in the open state, meaning that the hook baffle 13 on the grounding operating shaft 12 presses the door interlock hook 14. This allows the disconnector to be opened or closed while the circuit breaker is in the open state.

[0031] Step 2: If Figure 5 As shown, the isolation operating shaft 5 of the disconnector is in the closed state. The isolation operating shaft 5 is rotated by a wrench, and the isolation operating shaft 5 drives the isolation operating shaft cam 6 to rotate to the left, that is, the disconnector is in the open state. The isolation operating shaft cam 6 pushes the lower end of the open baffle 4 to move upward, and the upper end of the open baffle 4 is embedded in the closing button 8 to lock it, so that the closing button 8 cannot be pressed normally. At the same time, after the isolation indicator 11 rotates counterclockwise from the downward state, the isolation indicator 11 is in the left state. The isolation indicator 11 no longer blocks the grounding operating shaft 12, that is, the grounding can be operated. The purpose is to be able to operate the opening and closing of the grounding switch when the disconnector is in the open state, and the closing button 8 of the circuit breaker cannot be operated.

[0032] Step 3: If Figure 6As shown, the isolating switch is in the open state. Use a wrench to rotate the grounding operating shaft 12 clockwise. The grounding operating shaft 12 drives the hook baffle 13 to rotate clockwise, that is, the grounding switch is in the closed state. The door interlock hook 14 is no longer pressed by the hook baffle 13. The grounding switch is in the closed state and the cable compartment door can be opened normally. At the same time, the isolation indicator 11 rotates upward. The isolation indicator 11 blocks the isolation operating shaft 5 directly above the isolation operating shaft 5, and the isolation operating shaft 5 cannot be operated, that is, the isolating switch cannot be controlled to close. The purpose is to put the grounding operating shaft 12 in the closed state. The isolation operating shaft 5 is blocked by the isolation indicator 11 and cannot be operated. The isolating switch is in the open state at this time, and the closing button 8 of the circuit breaker is locked and cannot be pressed normally.

[0033] The above specific implementation methods are preferred embodiments of the present invention and cannot limit the present invention. Any other changes or other equivalent replacement methods that do not deviate from the technical solution of the present invention are included in the scope of protection of the present invention.

Claims

1. A five-protection interlocking device for an IP65 sealing mechanism, characterized by: The invention comprises a circuit breaker opening and closing indicator plate, an opening baffle, a closing baffle, a closing button, an opening button, an isolation indicator plate, an isolation operation component, a grounding operation component and a hook structure. The circuit breaker opening and closing indicator plate, the closing button and the opening button are all arranged on the circuit breaker, the isolation operation component and the isolation indicator plate are both arranged on the disconnector, the grounding operation component is arranged on the grounding switch, the circuit breaker is provided with a circuit breaker sealing plate, the disconnector and the grounding switch are provided with an disconnector sealing plate, the hook structure is installed on the disconnector sealing plate, the closing baffle is slidably installed on the circuit breaker sealing plate and the disconnector Sealing plate, the upper end of the closing baffle corresponds to the closing button, the lower end of the closing baffle abuts against the isolation operating component, the opening baffle is slidably installed on the circuit breaker sealing plate and the disconnector sealing plate, the upper end of the opening baffle abuts against the circuit breaker opening and closing indicator, the isolation operating component includes an isolation operating shaft and an isolation operating shaft cam, the grounding operating component includes a grounding operating shaft and a hook baffle, the lower end of the opening baffle can be blocked by the isolation operating shaft, the isolation indicator can be blocked by the isolation operating shaft and the grounding operating shaft, and the grounding operating component matches the hook structure.

2. The five-protection interlocking device of the IP65 sealing mechanism according to claim 1, characterized in that: The isolation operating shaft cam is installed on the isolation operating shaft, and the isolation operating shaft is provided on the isolation switch. The isolation operating shaft cam abuts against the lower end of the closing baffle.

3. The five-protection interlocking device of the IP65 sealing mechanism according to claim 1, characterized in that: The hook baffle is installed on the grounding operation shaft, the grounding operation shaft is provided on the grounding switch, and the hook baffle corresponds to the hook structure.

4. The five-protection interlocking device of the IP65 sealing mechanism according to claim 1, characterized in that: The hook structure includes a door chain hook, an operating shaft baffle and a hook mounting seat. The hook mounting seat is installed on the isolating switch sealing plate. The door chain hook can be slidably installed on the hook mounting seat up and down. One end of the operating shaft baffle is connected to the door chain hook, and the other end of the operating shaft baffle and the door chain hook both correspond to the grounding operating component.

5. The five-protection interlocking device of the IP65 sealing mechanism according to claim 1, characterized in that: It also includes a counter, which is installed on the circuit breaker sealing plate and connected to the circuit breaker opening and closing indicator plate.

6. The five-protection interlocking device of the IP65 sealing mechanism according to claim 1, characterized in that: It also includes an energy storage operating shaft, which is arranged on the circuit breaker.

7. The five-protection interlocking device of the IP65 sealing mechanism according to claim 6, characterized in that: It also includes an energy storage indicator sign, which is arranged on the circuit breaker and corresponds to the energy storage operating axis.

8. The five-protection interlocking device of the IP65 sealing mechanism according to claim 1, characterized in that: It also includes a first spring, and the closing baffle is connected to the circuit breaker sealing plate through the first spring.

9. The five-protection interlocking device of an IP65 sealing mechanism according to claim 1, characterized in that: It also includes a second spring, and the opening baffle is connected to the circuit breaker sealing plate through the second spring.

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