High-voltage isolating switch with contact self-checking function

Abstract

The utility model discloses a high-voltage isolating switch with a contact self-checking function, which comprises an insulating cylinder, a mounting rod arranged on one side of the insulating cylinder, a baffle plate arranged on the outer surface of the bottom of the insulating cylinder, and a bottom plate arranged on the lower side of the baffle plate, and is characterized in that a shell is arranged on the bottom plate, the shell is arranged on the lower side of the baffle plate, and the mounting rod is arranged on the mounting rod. A power device for driving the baffle and the insulating cylinder to rotate is arranged in the shell, the power device is in power connection with the insulating cylinder through a clutch type structure, a corresponding sensor is arranged to achieve the self-detection function on the power state, and the proximity switch is used for conducting self-detection on equipment before starting. And the working states of the controller, the first motor and the second motor are judged, the proximity switch can be reset to stop working when being in the working state in the self-checking process, so that the rotating shaft and the second square groove are separated from clamping connection, and then the insulating cylinder is prevented from rotating by clamping connection of the convex block and the insertion groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to high voltage disconnecting switch technical field, specifically a high voltage disconnecting switch with contact self -checking function. BACKGROUND

[0002] High voltage disconnecting switch is a kind of key electrical equipment for realizing circuit breaking and closing in high voltage circuit, and is widely used in power system.The traditional high voltage disconnecting switch has some problems and limitations in use process.

[0003] On the one hand, the traditional high voltage disconnecting switch exposes many problems to be solved in long-term operation practice.In power system, high voltage disconnecting switch undertakes the key task of circuit breaking and closing, and its internal motor as driving core component is responsible for the rotating operation of key components such as insulating cylinder.However, the traditional equipment lacks effective detection means before starting, and it is difficult to determine the working state of motor and other core components.Once the motor fails, the device is prone to misoperation when running, which not only may cause serious safety accidents, but also greatly affects the stable power supply of power system.

[0004] On the other hand, the traditional high voltage disconnecting switch is not flexible in rotating control of insulating cylinder and lacks reliable locking function.When the device is not working, the insulating cylinder may accidentally rotate due to external force and other factors, thereby damaging its original electrical connection state and reducing the reliability and stability of the device.

[0005] Therefore, a new type of high voltage disconnecting switch is needed, which can solve the above problems, improve the self-checking ability and locking function power transmission efficiency of the device, thereby improving the overall performance and reliability of high voltage disconnecting switch and better meeting the needs of power system. UTILITY MODEL CONTENTS

[0006] The technical problem to be solved by the utility model is to provide a high voltage disconnecting switch with contact self-checking function, which can solve the above problems in the prior art.

[0007] The utility model is implemented by the following technical solutions: a high voltage disconnecting switch with contact self-checking function of the utility model, comprising an insulating cylinder, the insulating cylinder is provided with a mounting rod on one side, the bottom outer surface of the insulating cylinder is provided with a baffle, the lower side of the baffle is provided with a bottom plate, characterized in that, the bottom plate is provided with a shell, the shell is arranged on the lower side of the baffle, the shell is provided with a power device for driving the rotation of the baffle and the insulating cylinder, the power device is power connected with the insulating cylinder through clutch type structure, and a corresponding sensor is arranged to realize the self-checking function of power state.

[0008] Further technical solutions, the power device includes a fixed ring fixedly arranged on the upper side of the bottom plate, a first motor is arranged on the lower side of the bottom plate, a first block is arranged in power connection on one side of the first motor, a lifting plate is arranged on the upper side of the first block, a rotating shaft is rotatably arranged in the lifting plate, a first square groove is arranged in the rotating shaft, the first block is rotatably and slidingly connected into the first square groove, a second block is arranged on the top of the rotating shaft, a proximity switch is arranged in the second block, an insulating cylinder is rotatably arranged in the fixed ring, a second square groove is arranged in the insulating cylinder, a moving assembly is arranged on one side of the first motor to drive the lifting plate, the rotating shaft and the second block to move upwards, so that the second block is rotatably and slidingly connected into the second square groove, and a clamping assembly is arranged on the top of the lifting plate and the insulating cylinder to clamp the insulating cylinder when the second block is separated from the second square groove.

[0009] Further technical solutions, the clamping assembly includes a plurality of sliding blocks arranged on the upper side of the lifting plate, a protrusion is arranged on one side of the sliding block, a conical inner cavity is arranged on the outer surface of the bottom of the insulating cylinder, and a plurality of insertion grooves are arranged in the conical inner cavity.

[0010] Further technical solutions, the moving assembly includes a plurality of fixing frames fixedly arranged between the fixed ring and the bottom plate, a guide rail structure is arranged between the fixing frame and the lifting plate, and a power structure is arranged on one side of one of the fixing frames to drive the lifting plate to move up and down.

[0011] Further technical solutions, the guide rail structure includes a sliding rail arranged on one side of the fixing frame, and the sliding block is slidingly connected with the sliding rail.

[0012] Further technical solutions, the power structure includes a second motor arranged on the lower side of the first motor, a threaded shaft is arranged in power connection on one side of the second motor, an internally threaded block is fixedly arranged on one side of one of the sliding blocks, and the internally threaded block is threadedly connected with the threaded shaft.

[0013] Further technical solutions, a controller is fixedly arranged on one side of the fixing frame, and the controller is electrically connected with the proximity switch, the second motor and the first motor.

[0014] The beneficial effects of the utility model are: one, through setting proximity switch, controller, first motor and second motor, using proximity switch to detect before starting the equipment, judging the working state of controller, first motor and second motor, the self-checking process can make the proximity switch stop working when it is in working state, so that the rotating shaft is separated from the second square groove, then the protrusion is clamped with the insertion groove, and the insulating cylinder is prevented from rotating.

[0015] II. By the rotating shaft is in the insulation cylinder is disconnected from the power connection, using the protruding block and the slot card, to avoid the insulation cylinder produces rotation, plays a locking function. BRIEF DESCRIPTION OF DRAWINGS

[0016] For easy explanation, the utility model is described in detail by the following specific examples and drawings.

[0017] Figure 1 For the overall structure of high-voltage disconnecting switch with contact self-checking function of the utility model schematic diagram;

[0018] Figure 2 For Figure 1 The part structure schematic diagram of equipment;

[0019] Figure 3 For Figure 2 The schematic diagram of A in the equipment;

[0020] Figure 4 For Figure 2 The cut structure schematic diagram of equipment;

[0021] Figure 5 For Figure 4 The schematic diagram of B in the equipment;

[0022] Figure 6 For Figure 5 The schematic diagram of rotating shaft is connected with the insulation cylinder 14 and the first block power in the equipment;

[0023] In the drawing, the bottom plate 11, the shell 12, the baffle 13, the insulation cylinder 14, the mounting rod 15, the first motor 21, the lifting plate 23, the rotating shaft 24, the fixed frame 25, the fixed ring 26, the conical inner cavity 27, the second square groove 28, the slot 29, the protruding block 31, the second block 32, the threaded shaft 33, the inner threaded block 34, the second motor 35, the sliding block 36, the sliding rail 37, the first block 45, the first square groove 46, the controller 47, the proximity switch 48. DETAILED DESCRIPTION

[0024] As Figures 1-6 Indicated, the utility model is described in detail, for easy description, now the direction of the following said is defined as follows: the following said up and down, left and right, front and back direction and Figure 1The up-down, left-right and front-rear directions of the projection relationship are consistent, and the high-voltage disconnecting switch with the contact self-checking function comprises an insulating cylinder 14, the insulating cylinder 14 is provided with a mounting rod 15 on one side, the contact and the contact finger provided on one side of the mounting rod 15 are used to realize the switch function, the bottom outer surface of the insulating cylinder 14 is provided with a baffle 13, the bottom side of the baffle 13 is provided with a bottom plate 11, the bottom plate 11 is provided with an outer shell 12, the outer shell 12 is arranged on the bottom side of the baffle 13, and the outer shell 12 is provided with a power device for driving the baffle 13 and the insulating cylinder 14 to rotate, the power device is connected with the insulating cylinder 14 through a clutch type structure, and a corresponding sensor is arranged to realize the self-checking function of the power state.

[0025] Beneficially, the power device comprises a fixed ring 26 fixedly arranged on the top side of the bottom plate 11, the bottom side of the bottom plate 11 is provided with a first motor 21, the first motor 21 is connected with a first block 45 on one side, the first block 45 is provided with a lifting plate 23 on the top side, the lifting plate 23 is rotatably arranged with a rotating shaft 24, the rotating shaft 24 is provided with a first square groove 46, the first block 45 is rotatably and slidingly connected into the first square groove 46, the rotating shaft 24 is provided with a second block 32 on the top, the second block 32 is provided with a proximity switch 48, the insulating cylinder 14 is rotatably arranged in the fixed ring 26, the insulating cylinder 14 is provided with a second square groove 28, the first motor 21 is provided with a moving assembly for driving the lifting plate 23, the rotating shaft 24 and the second block 32 to move upwards on one side, so that the second block 32 is rotatably and slidingly connected into the second square groove 28, and the top of the lifting plate 23 and the insulating cylinder 14 are provided with a clamping assembly for clamping the insulating cylinder 14 when the second block 32 is separated from the second square groove 28.

[0026] Beneficially, the clamping assembly comprises a plurality of sliding blocks 36 arranged on the top side of the lifting plate 23, the sliding blocks 36 are provided with protrusions 31 on one side, the bottom outer surface of the insulating cylinder 14 is provided with a conical inner cavity 27, the conical inner cavity 27 is provided with a plurality of insertion grooves 29, the protrusions 31 are slidingly clamped with the insertion grooves 29 when the rotating shaft 24 and the second square groove 28 are in a separated state, and the protrusions 31 enter the conical inner cavity 27 and are separated from the insertion grooves 29 when the second block 32 moves to the top side and is clamped with the second square groove 28.

[0027] Beneficially, the moving assembly comprises a plurality of fixed frames 25 fixedly arranged between the fixed ring 26 and the bottom plate 11, and a guide rail structure is arranged between the fixed frames 25 and the lifting plate 23, one of the fixed frames 25 is provided with a power structure for driving the lifting plate 23 to move up and down on one side.

[0028] Beneficially, the guide rail structure comprises a sliding rail 37 arranged on one side of the fixed frame 25, and the sliding blocks 36 are slidingly connected with the sliding rail 37.

[0029] Beneficially, the power structure comprises a second motor 35 arranged on the lower side of the first motor 21, one side of the second motor 35 is power-connected with a threaded shaft 33, one side of one of the sliders 36 is fixedly arranged with an internally-threaded block 34, and the internally-threaded block 34 is threadedly connected with the threaded shaft 33.

[0030] Beneficially, one side of the fixing frame 25 is fixedly arranged with a controller 47, the controller 47 is electrically connected with the proximity switch 48, the second motor 35 and the first motor 21, before the equipment starts to operate, the controller 47 checks the working state of the second motor 35, the first motor 21 and the proximity switch 48, for the proximity switch 48, when the proximity switch 48 moves upward to the position, it is in the working state, through the self-checking process, when the proximity switch 48 is in the working state, it is reset to stop working, so that the rotating shaft 24 is disengaged from the clamping of the second square groove 28, and then the lug 31 is clamped with the insertion groove 29 to avoid the rotation of the insulating cylinder 14.

[0031] Through the power connection between the first motor 21 and the insulating cylinder 14 through the clutch type structure, when not working, the lug 31 is clamped with the insertion groove 29 to realize the relative fixation of the insulating cylinder 14, the slider 36 and the lifting plate 23, and avoid the rotation of the insulating cylinder 14, thereby improving the structural stability of the insulating cylinder 14.

[0032] When the equipment needs to rotate the insulating cylinder 14 to realize the closing or opening function, the second motor 35 drives the threaded shaft 33 to rotate, since the internally-threaded block 34 is threadedly connected with the threaded shaft 33, the lifting plate 23 and the rotating shaft 24 can be driven to move upward, at the same time, since the lifting plate 23 is fixed with the slider 36 and the lug 31, the lug 31 moves upward into the conical inner cavity 27 and is disengaged from the clamping of the insertion groove 29.

[0033] The structural design of the rotating shaft 24, the second square block 32, the first square groove 46 and the first square block 45 realizes the power connection of the four after the second square block 32 slides into the second square groove 28, at this time, the first motor 21 drives the first square block 45, the rotating shaft 24, the second square block 32 and the insulating cylinder 14 to rotate under the control of the controller 47.

[0034] After the rotation is completed, the first motor 21 stops working, and then the second motor 35 reversely drives the threaded shaft 33 to rotate, so that the internally-threaded block 34 and the lifting plate 23 drive the rotating shaft 24 to reset downward, the second square block 32 is disengaged from the clamping of the second square groove 28, and the lug 31 is clamped with the insertion groove 29 to stably keep the insulating cylinder 14 in this state.

[0035] The insulating cylinder 14 is a prior art, which is divided into a base and an insulating ceramic part, the top part is used for connecting a high-voltage wire to realize a high-voltage transmission function, and the bottom part is used for connecting an execution end to realize a rotating function.

[0036] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited thereto, any change or replacement without creative labor should be covered in the protection scope of the present application; therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A high-voltage disconnector with contact self-checking function, comprising an insulating cylinder (14), one side of the insulating cylinder (14) being provided with a mounting rod (15), the bottom outer surface of the insulating cylinder (14) being provided with a baffle (13), the lower side of the baffle (13) being provided with a bottom plate (11), characterized in that, The bottom plate (11) is provided with a shell (12), which is arranged on the lower side of the baffle (13), and the shell (12) is provided with a power device for driving the baffle (13) and the insulating cylinder (14) to rotate, which is connected with the insulating cylinder (14) through a clutch type structure, and a proximity switch (48) is arranged as a sensor to realize the self-checking function of the power state.

2. The high-voltage disconnector with contact self-checking function according to claim 1, characterized in that: The power device includes a fixed ring (26) fixedly arranged on the upper side of the bottom plate (11), a first motor (21) arranged on the lower side of the bottom plate (11), a first block (45) arranged on one side of the first motor (21) in a power connection mode, a lifting plate (23) arranged on the upper side of the first block (45), a rotating shaft (24) arranged in the lifting plate (23) in a rotating mode, a first square groove (46) arranged in the rotating shaft (24), the first block (45) extending into the first square groove (46) and being connected in a rotating and sliding fit mode, a second block (32) arranged on the top of the rotating shaft (24), a proximity switch (48) arranged in the second block (32), the insulating cylinder (14) arranged in the fixed ring (26) in a rotating mode, a second square groove (28) arranged in the insulating cylinder (14), and a moving assembly arranged on one side of the first motor (21) to drive the lifting plate (23), the rotating shaft (24) and the second block (32) to move upward, so that the second block (32) extends into the second square groove (28) and is connected in a rotating and sliding fit mode, and a clamping assembly arranged on the top of the lifting plate (23) and the insulating cylinder (14) to clamp the insulating cylinder (14) when the second block (32) is separated from the second square groove (28).

3. The high-voltage disconnector with contact self-checking function according to claim 2, characterized in that: The clamping assembly includes a plurality of sliding blocks (36) arranged on the upper side of the lifting plate (23), a protruding block (31) arranged on one side of the sliding block (36), a conical inner cavity (27) arranged on the outer surface of the bottom of the insulating cylinder (14), and a plurality of insertion grooves (29) arranged in the conical inner cavity (27).

4. The high-voltage disconnector with contact self-checking function according to claim 3, characterized in that: The moving assembly includes a plurality of fixing frames (25) fixedly arranged between the fixed ring (26) and the bottom plate (11), and a guide rail structure arranged between the fixing frame (25) and the lifting plate (23), wherein one side of one of the fixing frames (25) is provided with a power structure for driving the lifting plate (23) to move up and down.

5. The high-voltage disconnector with contact self-checking function according to claim 4, characterized in that: The guide rail structure includes a sliding rail (37) arranged on one side of the fixing frame (25), and the sliding block (36) is connected in a sliding fit mode with the sliding rail (37).

6. The high-voltage disconnector with contact self-checking function according to claim 4, characterized in that: The power structure includes a second motor (35) arranged on the lower side of the first motor (21), a threaded shaft (33) arranged on one side of the second motor (35) in a power connection mode, and an internally threaded block (34) fixedly arranged on one side of one of the sliding blocks (36), wherein the internally threaded block (34) is connected in a threaded fit mode with the threaded shaft (33).

7. The high-voltage disconnector with contact self-checking function according to claim 6, characterized in that: One side of the fixing frame (25) is fixedly provided with a controller (47), and the controller (47) is electrically connected with the proximity switch (48), the second motor (35) and the first motor (21).

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