Outdoor vacuum circuit breaker closing operation mechanism

Abstract

The utility model relates to the technical field of vacuum circuit breakers, in particular to an outdoor vacuum circuit breaker closing operation mechanism which comprises a base, a permanent magnet driving mechanism is arranged in the base and comprises a center plate and two energy storage springs, and the outer wall of the center plate is rotatably connected with a rotating shaft. The outer wall of the base is rotatably connected with a connecting rod, the outer wall of the connecting rod is fixedly connected with a turntable and a poke rod, the connecting mechanism comprises a connecting block, a T-shaped groove is formed in the bottom surface of the connecting block, a T-shaped plate is inserted into the T-shaped groove, and one end of the T-shaped plate is fixedly connected with a connecting plate; according to the utility model, the energy storage spring can be conveniently replaced without the help of external tools, the maintenance efficiency is improved, the normal closing operation of the outdoor vacuum circuit breaker is ensured to be assisted, and the trouble caused by the subsequent mistaken touch of the poke rod can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vacuum circuit breaker technical field, specifically is a kind of outdoor vacuum circuit breaker closing operation mechanism. BACKGROUND

[0002] Vacuum circuit breaker is named because its arc-extinguishing medium and the insulation medium of contact gap after arc-extinguishing are high vacuum, and it is widely used in distribution network, which can be used for protection and control of electrical equipment in industrial and mining enterprises, power plants and substations, and the closing operation mechanism of vacuum circuit breaker is a mechanism with permanent magnet as main driving force.

[0003] In the prior art, such as the patent application number "CN202023346236.0", a kind of permanent magnet operating mechanism for vacuum circuit breaker is proposed, the cross slot extends along the length direction of adjusting rod, and the control rod is provided with a cross block inserted into the cross slot at one end of the adjusting rod, and the other end of the control rod is fixedly connected with a rotating disc, which has the effect of reducing the probability of changing the working state of the permanent magnet device due to external factors when the permanent magnet device is working normally.

[0004] However, in the above-mentioned patent application, a spring needs to be provided as an energy storage component in the closing operation mechanism of the vacuum circuit breaker, but since the outdoor vacuum circuit breaker is installed outdoors, rainwater and other external environmental factors can affect the spring, and the spring's elastic performance will decrease after long-term use, affecting the auxiliary closing operation of the vacuum circuit breaker. At this time, maintenance and replacement are needed, but external tools are needed to disassemble and assemble during maintenance, which is troublesome and affects maintenance efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of outdoor vacuum circuit breaker closing operation mechanism to solve the problems raised in the above-mentioned background technology.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A kind of outdoor vacuum circuit breaker closing operation mechanism, comprising a base, the base is internally provided with a permanent magnet driving mechanism, the permanent magnet driving mechanism includes a center plate and two energy storage springs, the outer wall of the center plate is rotatably connected with a rotating shaft, the two ends of the energy storage spring are provided with a connecting mechanism, one end of the rotating shaft is fixedly connected with a pointer, the outer wall of the base is rotatably connected with a connecting rod, the outer wall of the connecting rod is fixedly connected with a rotating disc and a push rod;

[0008] The connecting mechanism includes a connecting block, a T-shaped slot is formed in the bottom surface of the connecting block, a T-shaped plate is inserted into the T-shaped slot, one end of the T-shaped plate is fixedly connected with a link plate.

[0009] Preferably, one of the adapter plates is fixedly connected with the rotating shaft at one end away from the connecting block, and the other adapter plate is rotatably connected with the base through a shaft rod.

[0010] Preferably, the connecting block is provided with two movable frames inserted in the outer side walls, and two limiting rods are inserted in the outer walls of the two movable frames and fixedly connected with the connecting block.

[0011] Preferably, the outer parts of the limiting rods are sleeved with supporting springs, the upper ends of the two movable frames are rotatably connected with clamping plates through shaft rods, the upper end of the connecting block is fixedly provided with two fixed blocks, and the two fixed blocks are matched with the clamping plates.

[0012] Preferably, the outer side walls of the fixed blocks are provided with movable grooves near the upper ends, two resisting blocks are inserted in the movable grooves, and return springs are arranged between the resisting blocks and the inner walls of the movable grooves.

[0013] Preferably, the outer side wall of the base is provided with a sliding groove, the sliding groove is slidably connected with an insertion block, the inner wall of the sliding groove is fixedly connected with a telescopic connecting rod, one end of the telescopic connecting rod is fixedly connected with the insertion block, and the telescopic connecting rod is sleeved with a limiting spring.

[0014] Preferably, the outer wall of the rotating disc is provided with a plurality of limiting grooves, and the limiting grooves are matched with the insertion block.

[0015] The utility model discloses the beneficial effect of:

[0016] 1. When the elastic force of the energy storage spring is insufficient, the two movable frames are fixed, the movable frames are moved, the resisting of the adapter plate is released, the connecting block is moved out of the T-shaped plate through the T-shaped slot, one end of the energy storage spring is removed, and the other energy storage spring is removed in the same way.

[0017] 2. After the vacuum circuit breaker is closed by rotating the connecting rod through the actuating rod, the insertion block is loosened, the insertion block is moved into the corresponding limiting groove by the elastic force of the limiting spring, the position of the rotating disc is fixed, and the actuating rod is prevented from being accidentally touched. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is the overall structure schematic diagram of the present application;

[0020] Figure 2 It is the local structure schematic diagram of the present application;

[0021] Figure 3 It is the structure schematic diagram of the connecting block and the T-shaped block in the present application;

[0022] Figure 4 It is the structure schematic diagram of the connecting block and the T-shaped block in the present application; Figure 3 It is the enlarged view of A in the middle;

[0023] Figure 5 It is the structure schematic diagram of the turntable, the plug-in block and the telescopic connecting rod in the present application.

[0024] The reference signs in the drawings are as follows:

[0025] 1, base; 2, permanent magnet driving mechanism; 3, center plate; 4, energy storage spring; 5, rotating shaft; 6, indicating needle; 7, connecting rod; 8, knob; 9, plug-in block; 10, connecting block; 11, connecting plate; 12, T-shaped plate; 13, T-shaped slot; 14, movable frame; 15, limiting rod; 16, clamping plate; 17, fixed block; 18, resisting block; 19, telescopic connecting rod; 20, turntable; 21, limiting slot; 22, fixing nail. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0027] An outdoor vacuum circuit breaker closing operation mechanism, like Figures 1-5As shown, the device includes a base 1, inside which is a permanent magnet drive mechanism 2. The permanent magnet drive mechanism 2 includes a center plate 3 and two energy storage springs 4. A rotating shaft 5 is rotatably connected to the outer wall of the center plate 3. Both ends of the energy storage springs 4 are provided with connecting mechanisms. One end of the rotating shaft 5 is fixedly connected to an indicator needle 6. A connecting rod 7 is rotatably connected to the outer wall of the base 1. A turntable 20 and a toggle rod 8 are fixedly connected to the outer wall of the connecting rod 7. The connecting mechanism includes a connecting block 10. A T-shaped groove 13 is opened on the bottom surface of the connecting block 10. A T-shaped plate 12 is inserted inside the T-shaped groove 13. One end of the T-shaped plate 12 is fixedly connected to a connecting plate 11.

[0028] One of the connecting plates 11 is fixedly connected to the rotating shaft 5 at the end away from the connecting block 10. The other connecting plate 11 is rotatably connected to the base 1 via a shaft. Movable frames 14 are inserted into both outer walls of the connecting block 10. Two limiting rods 15 are inserted into the outer walls of the two movable frames 14. One end of each limiting rod 15 is fixedly connected to the connecting block 10. Support springs are sleeved on the outside of several limiting rods 15. A clamping plate 16 is rotatably connected to the upper end of each of the two movable frames 14 via a shaft. Two fixing blocks 17 are fixedly installed on the upper end of the connecting block 10, and both fixing blocks 17 fit into the clamping plate 16. Support springs are provided to reset the movable frames 14.

[0029] The two outer side walls of the fixing block 17 are provided with movable grooves near the upper end. A stop block 18 is inserted into each of the two movable grooves. A return spring is installed between one end of the stop block 18 and the inner wall of the movable groove. Two fixing nails 22 are inserted into the upper surface of the fixing block 17. Fixing holes are provided on the upper surface of the two stop blocks 18, and the fixing holes fit with the fixing nails 22. By passing the fixing nails 22 through the fixing block 17 and inserting them into the fixing holes, the position between the stop block 18 and the fixing block 17 can be fixed, thereby further fixing the position between the card plate 16 and the fixing block 17.

[0030] In use, the permanent magnet drive mechanism 2 drives the center plate 3 to move, which in turn drives the rotating shaft 5 to rotate. The connecting plate 11 follows the rotating shaft 5 to rotate, which drives the energy storage spring 4 to stretch and store energy, thus assisting in the closing operation of the outdoor vacuum circuit breaker. At the same time, the indicator needle 6 follows the rotating shaft 5 to rotate, assisting in the closing indication. Alternatively, the connecting rod 7 can be rotated manually by rotating the toggle lever 8, which works in conjunction with the permanent magnet drive mechanism 2 to perform a manual closing operation.

[0031] When the energy storage spring 4 becomes insufficient in elasticity after prolonged use, the two fixing pins 22 can be pulled out from the fixing block 17, and then the clamping plate 16 can be rotated to rotate out of the fixing block 17. During the rotation, the inner wall of the clamping plate 16 moves along the inclined surface of the abutment block 18, which can gradually squeeze and move the abutment block 18 into the movable groove. The return spring is compressed and contracted, which can release the abutment on the clamping plate 16, thereby releasing the fixation on the movable frame 14. Similarly, the fixation on the other movable frame 14 can be released. Then, the two movable frames 14 can be moved along the limit rod 15 so that one end of each movable frame 14 moves out from the bottom surface of the connecting plate 11, releasing the abutment on the connecting plate 11. Then, the connecting block 10 can be moved upward through the T-slot 13 along the outside of the T-plate 12 to remove one end of the energy storage spring 4. Similarly, the other energy storage spring 4 can be removed, making it easy to disassemble and replace the energy storage spring 4. During installation, simply insert the two connecting blocks 10 into the outside of the two T-plates 12 through the T-slots 13, move the two movable frames 14 to the initial position, and rotate the clamping plate 16 to fit the clamping plate 16 onto the outside of the fixing block 17. During fitting, move along the inclined surface of the two abutting blocks 18 to retract the two abutting blocks 18 into the movable slot until the clamping plate 16 has completely passed the two abutting blocks 18. Under the action of the return spring, the two abutting blocks 18 move to the initial position, which can abut and fix the position of the clamping plate 16. Then, insert the fixing nail 22 through the fixing block 17 into the fixing hole to further fix the position between the clamping plate 16 and the fixing block 17, thereby connecting and fixing the connecting block 10 and the connecting plate 11, completing the installation of the energy storage spring 4. Through the above operation, the energy storage spring 4 can be easily replaced without the need for external tools, improving maintenance efficiency and ensuring the normal closing operation of the outdoor vacuum circuit breaker.

[0032] The outer wall of the base 1 has a sliding groove, and the insert 9 is slidably connected inside the sliding groove. The inner wall of the sliding groove is fixedly connected to the telescopic connecting rod 19, and one end of the telescopic connecting rod 19 is fixedly connected to the insert 9. A limiting spring is sleeved on the outside of the telescopic connecting rod 19. Several limiting grooves 21 are opened through the outer wall of the turntable 20, and the limiting grooves 21 fit with the insert 9.

[0033] Specifically, when manually closing the vacuum circuit breaker by rotating the connecting rod 7 using the lever 8, first move the plug 9 along the slide groove away from the turntable 20. The telescopic connecting rod 19 shortens, and the limit spring is compressed, thus releasing the fixation on the turntable 20. Then rotate the connecting rod 7, and the turntable 20 follows the connecting rod 7 to rotate. After opening the circuit breaker, the plug 9 can be released, allowing the plug 9 to extend through the elastic force of the limit spring, thereby moving the plug 9 to insert into the corresponding limit slot 21, fixing the position of the turntable 20 and preventing accidental activation of the lever 8 later, which could cause problems.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An outdoor vacuum circuit breaker closing operating mechanism comprising a base (1), characterized in that, The base (1) is internally provided with a permanent magnet driving mechanism (2), the permanent magnet driving mechanism (2) comprises a center plate (3) and two energy storage springs (4), the outer wall of the center plate (3) is rotatably connected with a rotating shaft (5), the two ends of the energy storage spring (4) are provided with a connecting mechanism, one end of the rotating shaft (5) is fixedly connected with an indicating needle (6), the outer wall of the base (1) is rotatably connected with a connecting rod (7), the outer wall of the connecting rod (7) is fixedly connected with a rotating disc (20) and a pushing rod (8); The connecting mechanism comprises a connecting block (10), a T-shaped groove (13) is formed in the bottom surface of the connecting block (10), and a T-shaped plate (12) is inserted into the T-shaped groove (13); one end of the T-shaped plate (12) is fixedly connected with an adapter plate (11).

2. The outdoor vacuum circuit breaker closing operating mechanism according to claim 1, characterized in that, One end of the adapter plate (11) is fixedly connected with the rotating shaft (5) away from the connecting block (10), and the other adapter plate (11) is rotatably connected with the base (1) through a shaft rod.

3. The outdoor vacuum circuit breaker closing operating mechanism according to claim 1, characterized in that, The outer side walls of the connecting block (10) are both inserted with movable frames (14), the outer walls of the two movable frames (14) are both inserted with two limiting rods (15), and one end of each of the two limiting rods (15) is fixedly connected with the connecting block (10).

4. The outdoor vacuum circuit breaker closing operating mechanism according to claim 3, characterized in that, The outer sides of the limiting rods (15) are all sleeved with supporting springs, the upper ends of the two movable frames (14) are rotatably connected with clamping plates (16) through shaft rods, two fixed blocks (17) are fixedly installed on the upper end of the connecting block (10), and the two fixed blocks (17) are matched with the clamping plates (16).

5. The outdoor vacuum circuit breaker closing operating mechanism according to claim 4, characterized in that, The outer side walls of the fixed blocks (17) are both provided with movable grooves near the upper ends, the movable grooves are both inserted with resisting blocks (18), reset springs are installed between one end of the resisting blocks (18) and the inner walls of the movable grooves, two fixed nails (22) are inserted on the upper end surfaces of the fixed blocks (17), two fixed holes are formed in the upper end surfaces of the resisting blocks (18), and the fixed holes are matched with the fixed nails (22).

6. The outdoor vacuum circuit breaker closing operating mechanism according to claim 1, wherein The outer side wall of the base (1) is provided with a sliding groove, the sliding groove is slidably connected with an insertion block (9), the inner wall of the sliding groove is fixedly connected with a telescopic connecting rod (19), one end of the telescopic connecting rod (19) is fixedly connected with the insertion block (9), and the telescopic connecting rod (19) is sleeved with a limiting spring.

7. The outdoor vacuum circuit breaker closing operating mechanism according to claim 6, characterized in that, The outer wall of the rotating disc (20) is penetrated with a plurality of limiting grooves (21), and the limiting grooves (21) are matched with the insertion block (9).

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