High-strength five-prevention interlocking operation mechanism

Abstract

The utility model relates to a high-strength five-prevention interlocking operation mechanism, which comprises a mechanism frame, a grounding operation shaft and an isolation operation shaft, and is characterized in that the mechanism frame comprises a front plate, a front panel arranged on one side of the front plate, a middle plate, a plurality of supporting plates arranged between the front plate and the middle plate, and a rear mounting plate arranged on one side of the middle plate; the grounding operation shaft and the isolation operation shaft are rotatably arranged on the front plate and the middle plate respectively, reinforcing supporting columns are arranged between the front plate and the front panel and between the middle plate and the rear mounting plate and correspond to the grounding operation shaft and the isolation operation shaft respectively, and a plurality of supporting columns are arranged between the front plate and the rear mounting plate. The middle plate is respectively provided with an anti-bounce assembly which is matched with the driving plates of the grounding operation shaft and the isolation operation shaft. The utility model has the advantages of simple structure, stable and reliable performance, convenience in assembly, safety, reliability and high strength.

Description

Technical Field

[0001] The utility model relates to an operating mechanism, in particular to a high-strength five-protection interlocking operating mechanism used on a ring network cabinet. Background Art

[0002] The ring main unit is a group of electrical equipment (high-voltage switchgear) installed in a metal or non-metallic insulating cabinet or made into an assembled interval ring main unit. Its core part uses load switches and fuses, which have the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. In the power transmission and transformation system, the ring main unit is a very important electrical equipment in the power system. Once an erroneous operation occurs, it will cause equipment damage at the least and cause power system failure at the worst. Therefore, the ring main unit must have a complete and reliable "five-protection interlocking" function to ensure the safe operation of people and the power grid. The existing five-protection interlocking operating mechanism for the ring main unit has a weak frame strength. When the grounding operating shaft and the isolation operating shaft of the five-protection interlocking operating mechanism are rotating, the frame cannot withstand a large load, resulting in low working reliability of the five-protection interlocking operating mechanism. In addition, the five-protection interlocking operating mechanism does not have an anti-bounce function. During operation, the grounding operating shaft and the isolation operating shaft have large bounces, which results in the grounding operating shaft and the isolation operating shaft being unable to drive the grounding switch and the isolation switch to reliably perform the opening and closing actions, posing a major safety hazard. In addition, the five-protection interlocking operating mechanism also has the defects of complex structure, unreliable performance, and inconvenient assembly. Summary of the invention

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a high-strength five-protection interlocking operating mechanism with simple structure, stable and reliable performance, convenient assembly, and safety and reliability.

[0004] To achieve the above-mentioned purpose, the utility model adopts a high-strength five-protection interlocking operating mechanism, including a mechanism frame, a grounding operating shaft, and an isolation operating shaft. The mechanism frame includes a front plate, a front panel arranged on one side of the front plate, a middle plate, a plurality of support plates arranged between the front plate and the middle plate, and a rear mounting plate arranged on one side of the middle plate. The grounding operating shaft and the isolation operating shaft are rotatably arranged on the front plate and the middle plate, respectively. Reinforced support columns are respectively arranged between the front plate and the front panel, and between the middle plate and the rear mounting plate corresponding to the grounding operating shaft and the isolation operating shaft. A plurality of support columns are arranged between the front plate and the rear mounting plate, and anti-bounce components that cooperate with the driving plates of the grounding operating shaft and the isolation operating shaft are respectively arranged on the middle plate.

[0005] The beneficial effects of the above structure are: the mechanism frame of the five-protection interlocking operating mechanism adopts a reinforced structural design, and reinforced support columns are respectively arranged between the front plate and the front panel, and between the middle plate and the rear mounting plate corresponding to the isolation operating shaft and the grounding operating shaft. The reinforced support columns can enhance the load force of the mechanism frame, and multiple support columns can enhance the overall strength of the entire mechanism frame. In addition, an anti-bounce component is arranged on the middle plate, and the anti-bounce component can play an anti-bounce role for the isolation operating shaft and the grounding operating shaft, and can reduce the bounce of the isolation operating shaft and the grounding operating shaft. The isolation operating shaft and the grounding operating shaft can reliably drive the isolation switch and the grounding switch to open and close. Therefore, the five-protection interlocking operating mechanism has the advantages of simple structure, stable and reliable performance, convenient assembly, safety and reliability, and high strength.

[0006] In particular, the anti-bounce component includes a limiter that cooperates with the drive plate, a compression spring mounted on the limiter, and a limiter column arranged on the middle plate. One end of the limiter is connected to the drive plate, and the other end of the limiter is provided with a sliding hole that cooperates with the limiter column. The limiter column is inserted into the sliding hole and constitutes a sliding connection between the limiter and the limiter column. The anti-bounce component can limit the isolation operating shaft and the grounding operating shaft, and the compression spring on the limiter can play a buffering role, thereby reducing the bounce of the isolation operating shaft and the grounding operating shaft, which is beneficial to improving the working reliability of the five-protection interlocking operating mechanism.

[0007] In particular, a washer matching with a compression spring is arranged on the limiting member, one end of the compression spring abuts against the washer, and the other end of the compression spring abuts against the limiting column.

[0008] In particular, the washer is provided with a through hole matched with the limiting member, the limiting member is inserted into the through hole, and the limiting member is provided with a limiting block that abuts against one side of the washer, and the limiting block and the washer are matched to each other. The washer is engaged with the limiting member, so that the assembly of the limiting member and the washer is convenient and the assembly efficiency is higher.

[0009] In particular, a limit plate is provided on the isolation operating shaft and the grounding operating shaft respectively, two limit shafts matching the limit plate are provided on the middle plate respectively, two guide slide grooves matching the two limit shafts are provided on the limit plate, and the two limit shafts are respectively inserted into the two guide slide grooves of the limit plate. The two limit shafts can limit the limit plate, thereby ensuring that the isolation operating shaft and the grounding operating shaft can rotate reliably on the mechanism frame, which is conducive to improving the working reliability of the five-protection interlocking operating mechanism.

[0010] In particular, a circuit breaker interlocking assembly is provided at the driving plate corresponding to the isolation operating shaft on the support plate, and the circuit breaker interlocking assembly includes an interlocking rod slidably provided on the support plate, an interlocking plate provided on the interlocking rod, and a spring provided between the support plate and the interlocking plate. A protrusion matching the interlocking plate is provided on the driving plate of the isolation operating shaft, and the protrusion moves with the driving plate and drives the interlocking plate to move. The circuit breaker interlocking assembly can realize reliable interlocking of the isolation operating shaft and the circuit breaker. When the isolation operating shaft rotates to the opening position, the driving plate moves with the isolation operating shaft and drives the interlocking plate to move, and the interlocking rod moves with the interlocking plate and contacts the opening baffle of the circuit breaker, so that the interlocking rod can lock the circuit breaker in the opening state, and the circuit breaker cannot be closed.

[0011] In particular, the two ends of the reinforcement support column and the support column are respectively provided with threaded holes, and the front plate, the front panel, the middle plate, and the rear mounting plate are respectively provided with screws connected to the threaded holes of the reinforcement support column and the support column. The reinforcement support column and the support column are connected to the front plate, the front panel, the middle plate, and the rear mounting plate by screws, thereby facilitating the assembly of the frame and achieving higher assembly efficiency.

[0012] In particular, the cross-section of the plurality of support plates is U-shaped, and the two ends of the plurality of support plates are respectively provided with vertically bent fixing plates, and the fixing plates at the two ends of the support plates are respectively connected to the front plate and the middle plate. The support plates adopt a U-shaped structural design, and the strength of the support plates is higher, which is conducive to improving the overall strength of the entire machine frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a stereogram of an embodiment of the utility model.

[0014] Figure 2 It is a three-dimensional diagram of the internal structure of an embodiment of the utility model.

[0015] Figure 3 It is an assembly diagram of the anti-bounce component and the isolation operating shaft according to an embodiment of the utility model. DETAILED DESCRIPTION

[0016] like Figures 1 to 3As shown, the embodiment of the utility model is a high-strength five-defense interlocking operating mechanism, including a mechanism frame 10, a grounding operating shaft 20, and an isolation operating shaft 21. The mechanism frame 10 includes a front plate 11, a front panel 12 arranged on one side of the front plate 11, a middle plate 13, a plurality of support plates 14 arranged between the front plate 11 and the middle plate 13, and a rear mounting plate 15 arranged on one side of the middle plate 13. The grounding operating shaft 20 and the isolation operating shaft 21 are respectively rotatably arranged on the front plate 11 and the middle plate 13. Reinforced support columns 16 are respectively arranged between the front plate 11 and the front panel 12, and between the middle plate 13 and the rear mounting plate 15 corresponding to the grounding operating shaft 20 and the isolation operating shaft 21. A plurality of support columns 17 are arranged between the front plate 11 and the rear mounting plate 15. Anti-bounce components 30 that cooperate with drive plates 22 of the grounding operating shaft 20 and the isolation operating shaft 21 are respectively arranged on the middle plate 13.

[0017] The isolation operation shaft 21 and the grounding operation shaft 20 are respectively provided with a limit plate 23, and the middle plate 13 is respectively provided with two limit shafts 18 matched with the limit plate 23, and the limit plate 23 is provided with two guide slide grooves 231 matched with the two limit shafts 18, and the two limit shafts 18 are respectively inserted in the two guide slide grooves 231 of the limit plate 23. The two limit shafts can limit the limit plate, thereby ensuring that the isolation operation shaft and the grounding operation shaft can rotate reliably on the mechanism frame, which is conducive to improving the working reliability of the five-protection interlocking operation mechanism.

[0018] The reinforcing support column 16 and the support column 17 are provided with threaded holes 100 at both ends, and the front plate 11, the front panel 12, the middle plate 13, and the rear mounting plate 15 are provided with screws 19 connected to the threaded holes of the reinforcing support column 16 and the support column 17. The reinforcing support column and the support column are connected to the front plate, the front panel, the middle plate, and the rear mounting plate by screws, so as to facilitate the assembly of the mechanism frame and improve the assembly efficiency. The cross-sectional shape of the multiple support plates 14 is U-shaped, and the multiple support plates 14 have vertically bent fixing plates 141 at both ends, and the fixing plates 141 at both ends of the support plates 14 are connected to the front plate 11 and the middle plate 13 respectively. The support plate adopts a U-shaped structural design, and the strength of the support plate is higher, which is conducive to improving the overall strength of the entire mechanism frame. The anti-bounce assembly 30 includes a limiter 31 that cooperates with the drive plate 22, a compression spring 32 that is sleeved on the limiter 31, and a limiter column 33 that is arranged on the middle plate 13. One end of the limiter 31 is connected to the drive plate 22, and the other end of the limiter 31 is provided with a sliding hole 311 that cooperates with the limiter column 31. The limiter column 33 is inserted into the sliding hole 311, and constitutes a sliding connection and cooperation between the limiter 31 and the limiter column 33. The anti-bounce assembly can limit the isolation operating shaft and the grounding operating shaft, and the compression spring on the limiter can play a buffering role, thereby reducing the bounce of the isolation operating shaft and the grounding operating shaft, which is beneficial to improving the working reliability of the five-defense interlocking operating mechanism. The limiter 31 is provided with a washer 34 that cooperates with the compression spring 32, one end of the compression spring 32 abuts on the washer 34, and the other end of the compression spring 32 abuts on the limiter column 33. The washer 34 is provided with a through hole matched with the limiting member 31, the limiting member 31 is inserted in the through hole, and the limiting member 31 is provided with a limiting block 312 which abuts against one side of the washer 34, and forms a limiting match between the limiting block 312 and the washer 34. The washer is engaged with the limiting member, so as to facilitate the assembly of the limiting member and the washer, and the assembly efficiency is higher.

[0019] like Figure 1 , 3As shown, a circuit breaker interlocking assembly 40 is provided at the driving plate 22 corresponding to the isolation operating shaft 21 on the support plate 14, and the circuit breaker interlocking assembly 40 includes an interlocking rod 41 slidably provided on the support plate 14, an interlocking plate 42 provided on the interlocking rod 41, and a spring 43 provided between the support plate 14 and the interlocking plate 42. A protrusion 221 matching the interlocking plate 42 is provided on the driving plate 22 of the isolation operating shaft 21, and the protrusion 221 moves with the driving plate 22 and drives the interlocking plate 42 to move. The circuit breaker interlocking assembly can realize reliable interlocking of the isolation operating shaft and the circuit breaker. When the isolation operating shaft rotates to the opening position, the driving plate moves with the isolation operating shaft and drives the interlocking plate to move, and the interlocking rod moves with the interlocking plate and contacts the opening baffle of the circuit breaker, so that the interlocking rod can lock the circuit breaker in the opening state, and the circuit breaker cannot be closed.

[0020] The mechanism frame of the five-defense interlocking operating mechanism adopts a reinforced structural design. Reinforced support columns are respectively arranged between the front plate and the front panel, and between the middle plate and the rear mounting plate, corresponding to the isolation operating shaft and the grounding operating shaft. The reinforced support columns can enhance the load force of the mechanism frame, and multiple support columns can enhance the overall strength of the entire mechanism frame. In addition, an anti-bounce component is arranged on the middle plate, which can play an anti-bounce role for the isolation operating shaft and the grounding operating shaft, and can reduce the bounce of the isolation operating shaft and the grounding operating shaft. The isolation operating shaft and the grounding operating shaft can reliably drive the isolation switch and the grounding switch to open and close. Therefore, the five-defense interlocking operating mechanism has the advantages of simple structure, stable and reliable performance, convenient assembly, safety and reliability, and high strength.

Claims

1. A high-strength five-protection interlocking operating mechanism, comprising a mechanism frame, a grounding operating shaft, and an isolation operating shaft, characterized in that : The mechanism frame includes a front plate, a front panel arranged on one side of the front plate, a middle plate, a plurality of support plates arranged between the front plate and the middle plate, and a rear mounting plate arranged on one side of the middle plate. The grounding operating shaft and the isolation operating shaft are rotatably arranged on the front plate and the middle plate respectively. Reinforced support columns are respectively arranged between the front plate and the front panel, and between the middle plate and the rear mounting plate corresponding to the grounding operating shaft and the isolation operating shaft. A plurality of support columns are arranged between the front plate and the rear mounting plate, and anti-bounce components matched with the driving plates of the grounding operating shaft and the isolation operating shaft are respectively arranged on the middle plate.

2. The high-strength five-protection interlocking operating mechanism according to claim 1 is characterized in that: The anti-bounce component includes a limit piece that cooperates with the driving plate, a compression spring mounted on the limit piece, and a limit column arranged on the middle plate. One end of the limit piece is connected to the driving plate, and the other end of the limit piece is provided with a sliding hole that cooperates with the limit column. The limit column is inserted into the sliding hole and constitutes a sliding connection between the limit piece and the limit column.

3. The high-strength five-protection interlocking operating mechanism according to claim 2 is characterized in that: The limiting member is provided with a washer matched with a compression spring, one end of the compression spring abuts against the washer, and the other end of the compression spring abuts against the limiting column.

4. The high-strength five-protection interlocking operating mechanism according to claim 3 is characterized in that: The washer is provided with a through hole matched with the limiting member, the limiting member is inserted in the through hole, and the limiting member is provided with a limiting block which abuts against one side of the washer, and forms a limiting match between the limiting block and the washer.

5. The high-strength five-protection interlocking operating mechanism according to claim 1 or 2, characterized in that: A limit plate is respectively provided on the isolation operating shaft and the grounding operating shaft, two limit shafts matching with the limit plate are respectively provided on the middle plate, two guide sliding grooves matching with the two limit shafts are provided on the limit plate, and the two limit shafts are respectively inserted in the two guide sliding grooves of the limit plate.

6. The high-strength five-protection interlocking operating mechanism according to claim 1 or 2, characterized in that: A circuit breaker interlocking assembly is arranged at the driving plate corresponding to the isolation operating shaft on the support plate. The circuit breaker interlocking assembly includes an interlocking rod slidably arranged on the support plate, an interlocking plate arranged on the interlocking rod, and a spring arranged between the support plate and the interlocking plate. A protrusion matching with the interlocking plate is arranged on the driving plate of the isolation operating shaft. The protrusion moves with the driving plate and drives the interlocking plate to move.

7. The high-strength five-protection interlocking operating mechanism according to claim 1 or 2, characterized in that: The two ends of the reinforcing support column and the support column are respectively provided with threaded holes, and the front plate, the front panel, the middle plate and the rear mounting plate are respectively provided with screws connected with the threaded holes of the reinforcing support column and the support column.

8. The high-strength five-protection interlocking operating mechanism according to claim 1 or 2, characterized in that: The cross-section shape of the multiple support plates is U-shaped, and both ends of the multiple support plates are respectively provided with vertically bent fixing plates, and the fixing plates at both ends of the support plates are respectively connected to the front plate and the middle plate.

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