Rotating device for operating handcart type disconnecting switch

Abstract

The utility model discloses a rotating device for operating a handcart type disconnecting switch, which is characterized by comprising at least one disconnecting switch, and a rotating mechanism is provided with a handcart structure used for implementing closing or opening with the disconnecting switch through a supporting structure; the rotating mechanism drives the supporting structure to rotate so as to drive the handcart structure to rotate, so that switching-on or switching-off operation is achieved. The rotating mechanism comprises a rotating motor, and an output shaft of the rotating motor is vertically provided with a manual rotating shaft through a gear assembly; a lead screw is arranged through a gear assembly, and a sliding block is arranged on the lead screw. When the lead screw rotates, the sliding block moves left and right and then is contacted with the first microswitch or the second microswitch at the two ends of the lead screw to push the rotary fork to rotate so as to realize electric rotary isolation operation. Or the manual rotation isolation operation is realized through the rotation of the rotary fork independently. The operating mechanism is characterized in that the rotating mechanism is operated manually or electrically to operate the 10kV handcart-type disconnecting switch, and the 10kV handcart-type disconnecting switch is operated in place more accurately, so that the problem of accidents caused by inaccurate action of the 10kV handcart-type disconnecting switch is solved.

Description

Technical Field

[0001] This utility model relates to the field of power equipment, specifically to a rotating device for operating a handcart-type disconnect switch. Background Technology

[0002] In power systems, a device capable of reliably isolating power sources is needed to ensure the safe maintenance of electrical equipment. A 10 kV disconnecting switch can isolate the equipment requiring maintenance from other operating lines when there is voltage but no load, establishing a reliable insulation gap, providing clear disconnection markings for personnel, and ensuring the safety of maintenance or testing work.

[0003] During power system operation, it is sometimes necessary to switch the operating mode of lines based on load changes, fault handling, and other circumstances. A 10 kV disconnecting switch can disconnect or close a specific line without affecting the normal operation of other lines, thus enabling flexible adjustment of the operating mode.

[0004] Improper closing or opening of 10 kV disconnecting switches can increase the gaps or contact resistance at power line connection points, posing a significant threat to the stable operation of power safety production. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, the purpose of this utility model is to provide a rotating device for operating a handcart-type disconnect switch. This device enables reliable and precise closing and opening operations of the handcart-type disconnect switch, ensuring the proper closing or opening of the 10 kV disconnect switch and preventing safety hazards.

[0006] To achieve the objective of this utility model, the technical solution adopted is as follows:

[0007] A rotating device for operating a handcart-type disconnect switch, comprising:

[0008] At least one disconnecting switch and a rotating mechanism are provided with a handcart structure for closing or opening the disconnecting switch via a support structure;

[0009] The rotating mechanism drives the support structure to rotate, thereby driving the handcart structure to rotate and thus realize the closing or opening operation.

[0010] The rotating mechanism includes a rotary motor, and the output shaft of the rotary motor is vertically connected to a manual rotating shaft via a gear assembly;

[0011] A lead screw is provided via a gear assembly, and a slider is provided on the lead screw;

[0012] When the lead screw rotates, the slider moves left and right and then contacts the first or second micro switch at both ends of the lead screw, simultaneously pushing the rotating fork to rotate to achieve electric rotation isolation operation;

[0013] Alternatively, manual rotation isolation can be achieved by rotating the fork alone.

[0014] In a preferred embodiment of this utility model, the manual rotary isolation is achieved by rotating the fork to drive the handcart structure to close or open the disconnect switch.

[0015] In a preferred embodiment of this utility model, the electric rotary isolator is activated by pressing down the contact of the first micro switch through the movement of a slider, thereby closing the circuit between the handcart structure and the isolating switch.

[0016] The sliding motion presses down the contact of the second micro switch, causing the handcart structure and the disconnecting switch to open.

[0017] In a preferred embodiment of the present invention, a first slider limiting pin is provided on the outside of the first micro switch.

[0018] In a preferred embodiment of the present invention, a second slider limiting pin is provided on the outside of the second micro switch.

[0019] In a preferred embodiment of this utility model, the gear assembly is a bevel gear assembly.

[0020] In a preferred embodiment of this utility model, the support structure is a metal support frame.

[0021] The beneficial effects of this utility model are as follows:

[0022] The most distinctive feature of this invention is that the 10kV handcart-type disconnect switch is operated by manually or electrically via a rotating mechanism. This allows for more precise operation of the 10kV handcart-type disconnect switch, thereby solving the problem of accidents caused by inaccurate operation of the 10kV handcart-type disconnect switch. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0024] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 . Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, in the following descriptions, well-known structures and technologies have been omitted to avoid unnecessary confusion regarding the concept of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] like Figure 1 Or, as shown in Figure 2, a rotating device for operating a handcart-type disconnect switch includes multiple disconnect switches 1. The rotating mechanism 4 is provided with a handcart structure 2 for closing or opening the disconnect switches 1 via a support structure 3 (a metal support frame in the embodiment). Each handcart on the handcart structure corresponds one-to-one with a disconnect switch 1.

[0028] The rotating mechanism 4 drives the support structure 3 to rotate, thereby driving the handcart structure 2 to achieve the closing or opening operation.

[0029] The specific operating procedure is as follows:

[0030] The rotating mechanism 4 includes a rotary motor 41 for power supply, and a manual rotating shaft 42 is vertically mounted on the output shaft of the rotary motor 41 via a gear assembly 44. The vertical angle is 90°. The gear assembly 44 is a bevel gear assembly.

[0031] A lead screw 47 is provided via a gear assembly 44, and a slider 46 is provided on the lead screw 47. The slider 46 moves in conjunction with the slide plate 45.

[0032] When the lead screw 47 rotates, the slider 46 moves left and right and comes into contact with the first micro switch 48 or the second micro switch 43 at both ends of the lead screw 47, thereby pushing the rotating fork to rotate to achieve electric rotation isolation operation.

[0033] The electric rotary isolator is activated by the movement of the slider 46 pressing down the contact of the first micro switch 29, which in turn closes the circuit between the handcart structure 2 and the isolating switch 1; a first slider limit pin 481 is provided on the outside of the first micro switch 48.

[0034] The movement of slider 46 presses down the contact of the second micro switch 43, causing the handcart structure 2 to open the circuit between the handcart structure 2 and the isolating switch 1. A second slider limit pin 431 is provided on the outside of the second micro switch 43.

[0035] Alternatively, manual rotation isolation can be achieved by rotating the fork 5 alone.

[0036] Because of the above structure, the working principle of this utility model is as follows:

[0037] 1. Electric rotary isolator operation:

[0038] When the disconnecting switch is in the open position, when the rotary motor is powered on, the rotational motion is converted into horizontal movement through the bevel gear assembly. The slider and slide plate move horizontally to the left together under the drive of the lead screw, pushing the rotating fork to rotate 90° counterclockwise. At the same time, the slide plate presses down a pair of contacts of the left micro switch, cutting off the power. The slider and limit pin limit the upper and lower positions, keeping the disconnecting switch in the closed position.

[0039] When the disconnecting switch is in the closed position, when the rotary motor is powered on, the rotational motion is converted into horizontal movement through the bevel gear assembly. The slider and slide plate move horizontally to the right together under the drive of the lead screw, pushing the rotating fork to rotate 90° clockwise. Simultaneously, the slide plate presses down a pair of contacts on the right microswitch, cutting off the power. The slider and limit pin are positioned vertically to keep the disconnecting switch in the open position.

[0040] 2. Manual rotation isolation operation:

[0041] When the disconnecting switch is in the open position, put the external rotating handle onto the manual rotating input shaft and rotate it clockwise. Then rotate the fork counterclockwise by 90° to keep the handcart-type disconnecting switch in the closed position.

[0042] When the disconnecting switch is in the closed position, put the external rotating handle onto the manual rotating input shaft and rotate it counterclockwise. Then rotate the fork 90° clockwise to keep the disconnecting switch in the open position.

[0043] The above shows and describes the basic principles, main features, and advantages of this utility model.

[0044] 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. All such changes and modifications fall within the scope of this utility model as defined by the appended claims and their equivalents.

Claims

1. A rotating device for operating a handcart-type disconnect switch, characterized in that, include: At least one disconnecting switch and a rotating mechanism are provided with a handcart structure for closing or opening the disconnecting switch via a support structure; The rotating mechanism drives the support structure to rotate, thereby driving the handcart structure to rotate and thus realizes the closing or opening operation. The rotating mechanism includes a rotary motor, and the output shaft of the rotary motor is vertically connected to a manual rotating shaft via a gear assembly; A lead screw is provided via a gear assembly, and a slider is provided on the lead screw; When the lead screw rotates, the slider moves left and right and then contacts the first or second micro switch at both ends of the lead screw, simultaneously pushing the rotating fork to rotate to achieve electric rotation isolation operation; Alternatively, manual rotation isolation can be achieved by rotating the fork alone.

2. The rotary device for operating a handcart-type disconnect switch as described in claim 1, characterized in that, The manual rotary isolation is achieved by rotating a fork to close or open the circuit between the handcart structure and the isolating switch.

3. The rotary device for operating a handcart-type disconnect switch as described in claim 1, characterized in that, The electric rotary isolator is activated by pressing down the contact of the first micro switch through the movement of a slider, which then drives the handcart structure to close the circuit between the isolating switch and the isolating switch. The sliding motion presses down the contact of the second micro switch, causing the handcart structure and the disconnecting switch to open.

4. A rotating device for operating a handcart-type disconnect switch as described in claim 1, characterized in that, The first micro switch is provided with a first slider limit pin on its outer side.

5. A rotating device for operating a handcart-type disconnect switch as described in claim 1, characterized in that, A second slider limit pin is provided on the outside of the second micro switch.

6. A rotating device for operating a handcart-type disconnect switch as described in claim 1, characterized in that, The gear assembly is a bevel gear assembly.

7. A rotating device for operating a handcart-type disconnect switch as described in claim 1, characterized in that, The supporting structure is a metal support frame.

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