Sectional type connecting device for grounding interlocking operation of high-voltage cabinet
By using a segmented connection device, the problem of insulation board aging caused by the intersection of the grounding operating shaft and the branch copper busbar is solved, achieving a safe distance without insulation board and improving the safety of the high-voltage switchgear.
Patent Information
- Application Number
- CN202423194045.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In existing high-voltage switchgear, there is a non-contact crossing between the grounding operating shaft and the branch copper busbar, which leads to aging of the insulation board, reduces insulation performance, and poses a safety hazard.
A segmented connection device is adopted, including an upper rotating mechanism, a front vertical connection mechanism, a lower rotating mechanism, and a rear vertical connection mechanism. The segmented structure avoids the intersection between the grounding operating shaft and the branch copper busbar, ensuring a safe distance of more than 300mm and eliminating the need for an insulating plate.
This improves the safety of the high-voltage switchgear, avoids safety hazards caused by aging insulation boards, and enhances the safety of the equipment.
Smart Images
Figure CN223599248U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to high -voltage cabinet grounding interlock operation's sectional type connecting device in high -voltage cabinet safety protection technical field. BACKGROUND
[0002] The grounding switch in the high-voltage cabinet is arranged at the rear end of the cabinet body, and the grounding operation shaft extends from the front end of the cabinet body to the grounding switch at the rear end and is connected with the pull rod of the grounding switch. By inserting the sleeve spanner into the insertion hole on the cabinet door and connecting with the grounding operation shaft, rotating the sleeve spanner makes the grounding operation shaft rotate, thereby driving the pull rod to move up and down, realizing the closing and opening of the grounding switch. This structure makes the grounding operation shaft extend from the front end of the cabinet body to the rear end, which inevitably crosses the branch copper bar without contact, and the gap between them is less than 300mm (as shown in the accompanying drawings). Therefore, in order to ensure the safety between the grounding operation shaft and the branch copper bar, an insulating plate is arranged between them. But the insulating plate is easy to age after a long time, and its insulation performance is greatly reduced, which has a potential safety hazard. Figures 1-2 The utility model relates to high -voltage cabinet grounding interlock operation's sectional type connecting device, can and branch copper bar between not exist cross situation, need not set up insulating plate to be able to satisfy the safety distance, effectively improve the security. CONTENT OF THE UTILITY MODEL
[0003] The utility model discloses a kind of high-voltage cabinet grounding interlock operation's sectional type connecting device, can and branch copper bar between not exist cross situation, need not set up insulating plate to be able to satisfy the safety distance, effectively improve the security.
[0004] To achieve the above object, the utility model provides a kind of high-voltage cabinet grounding interlock operation's sectional type connecting device, including upper rotating mechanism, the front end of upper rotating mechanism is connected with the middle part of cabinet body front end, the rear end of upper rotating mechanism is connected with the upper part of front vertical connecting mechanism, the lower part of front vertical connecting mechanism is connected with the front part of lower rotating mechanism, the rear end of lower rotating mechanism is connected with the lower part of rear vertical connecting mechanism, lower rotating mechanism is in the lower part of cabinet body, the upper part of rear vertical connecting mechanism is connected with grounding switch, grounding switch is in the rear of cabinet body.
[0005] Compared with prior art, the utility model has the beneficial effect that upper rotating mechanism rotates, thereby driving front vertical connecting mechanism to move up and down, thereby making lower rotating mechanism rotate, driving rear vertical connecting mechanism to move up and down, and further driving the opening and closing of the knife switch of grounding switch, so that there is no cross gap between the entire connecting device and branch copper bar, without setting up insulating plate to satisfy safety distance, effectively improve the security.
[0006] As a further improvement of the utility model, upper rotating mechanism includes upper grounding rotating shaft, the front end of upper grounding rotating shaft is connected with the middle part of cabinet body front end and matches with the insertion hole on cabinet door, and the rear end of upper grounding rotating shaft is connected with front vertical connecting mechanism.
[0007] In this way, the upper grounding shaft is located in the front half of the cabinet, with its front end facing the socket of the cabinet door, making it convenient for the sleeve wrench to be inserted into the socket and engaged with it. By rotating the sleeve wrench, the upper grounding shaft can be rotated around its axis.
[0008] As a further improvement of this utility model, the front vertical connecting mechanism includes a front vertical connecting rod, the upper end of which is connected to one end of the front upper swing arm, and the other end of the front upper swing arm is connected to the rear end of the upper grounding shaft; the lower end of the front vertical connecting rod is connected to one end of the front lower swing arm, and the other end of the front lower swing arm is connected to the front part of the lower rotating mechanism; the lower rotating mechanism includes a lower grounding shaft, the front end of which is connected to the other end of the front lower swing arm, and the rear end of which is connected to the lower part of the rear vertical connecting mechanism.
[0009] The rotation of the upper grounding shaft causes the front upper swing arm to swing up and down around the axis of the upper grounding shaft. This, in turn, causes the front vertical connecting rod to move up and down, which in turn causes the front lower swing arm to swing back and forth around the axis of the lower grounding shaft, so that the lower grounding shaft rotates back and forth around its axis.
[0010] As a further improvement of this utility model, the rear vertical connection mechanism includes a rear vertical connecting rod, the lower end of the front vertical connecting rod is connected to one end of the rear lower swing arm, and the other end of the rear lower swing arm is connected to the rear end of the lower grounding shaft; the upper end of the rear vertical connecting rod is connected to one end of the rear upper swing arm, and the other end of the rear upper swing arm is connected to the pull rod of the grounding switch.
[0011] In this way, the lower grounding shaft rotates under the drive of the front lower swing arm, which in turn drives the rear lower swing arm to swing back and forth around its axis, pulling the rear vertical connecting rod up and down, causing the rear upper swing arm to swing around one end, causing the pull rod to swing accordingly, and thus pulling the grounding switch knife switch to make an arc motion, realizing its opening and closing action. Attached Figure Description
[0012] Figure 1 This is a side view of the prior art.
[0013] Figure 2 This is a rear view of the prior art.
[0014] Figure 3 This is a side view of the present invention.
[0015] Figure 4 This is a rear view of the present invention.
[0016] Figure 5 This is a schematic diagram showing the specific connection of this utility model.
[0017] Figure 6 This is a schematic diagram showing the connection state of the front upper swing arm and the front lower swing arm of this utility model.
[0018] Wherein, 1 cabinet body, 2 grounding operation shaft, 3 branch copper bar, 4 grounding switch, 5 upper grounding rotating shaft, 6 pull rod, 7 front vertical connecting rod, 8 lower grounding rotating shaft, 9 rear vertical connecting rod, 10 front lower swing arm, 11 front upper swing arm. DETAILED DESCRIPTION
[0019] The utility model is further explained as follows by combining with the drawings:
[0020] As Figures 3-6 The high-voltage cabinet grounding interlocking operation segmented connecting device shown in the figure comprises an upper rotating mechanism, the front end of the upper rotating mechanism is connected with the middle part of the front end of the cabinet body 1, the rear end of the upper rotating mechanism is connected with the upper part of the front vertical connecting mechanism, the lower part of the front vertical connecting mechanism is connected with the front part of the lower rotating mechanism, the rear end of the lower rotating mechanism is connected with the lower part of the rear vertical connecting mechanism, the lower rotating mechanism is located at the lower part of the cabinet body 1, and the upper part of the rear vertical connecting mechanism is connected with the grounding switch 4, and the grounding switch 4 is located at the rear part of the cabinet body 1.
[0021] The upper rotating mechanism comprises an upper grounding rotating shaft 5, the front end of the upper grounding rotating shaft 5 is connected with the middle part of the front end of the cabinet body 1 and matches the insertion hole on the cabinet door, and the rear end of the upper grounding rotating shaft 5 is connected with the front vertical connecting mechanism.
[0022] The front vertical connecting mechanism comprises a front vertical connecting rod 7, the upper end of the front vertical connecting rod 7 is connected with one end of the front upper swing arm 11, the other end of the front upper swing arm 11 is connected with the rear end of the upper grounding rotating shaft 5, the lower end of the front vertical connecting rod 7 is connected with one end of the front lower swing arm 10, and the other end of the front lower swing arm 10 is connected with the front part of the lower rotating mechanism, the lower rotating mechanism comprises a lower grounding rotating shaft 8, the front end of the lower grounding rotating shaft 8 is connected with the other end of the front lower swing arm 10, and the rear end of the lower grounding rotating shaft 8 is connected with the lower part of the rear vertical connecting mechanism.
[0023] The rear vertical connecting mechanism comprises a rear vertical connecting rod 9, the lower end of the front vertical connecting rod 7 is connected with one end of the rear lower swing arm, the other end of the rear lower swing arm is connected with the rear end of the lower grounding rotating shaft 8, the upper end of the rear vertical connecting rod 9 is connected with one end of the rear upper swing arm, and the other end of the rear upper swing arm is connected with the pull rod 6 of the grounding switch 4.
[0024] In the utility model, the upper grounding rotating shaft 5 is located in the front half part of the cabinet body 1, the front end of the upper grounding rotating shaft 5 is opposite to the insertion hole of the cabinet door, the sleeve spanner is conveniently inserted into the insertion hole and is sleeved with the insertion hole, so that the upper grounding rotating shaft 5 can be rotated around the axis as the center by rotating the sleeve spanner.
[0025] When the grounding switch 4 is closed, the sleeve spanner is rotated, the upper grounding rotating shaft 5 is rotated, the front upper swing arm 11 is swung upwards around the axis of the upper grounding rotating shaft 5, the front vertical connecting rod 7 is moved upwards, the front lower swing arm 10 can be swung upwards around the axis of the lower grounding rotating shaft 8, and the lower grounding rotating shaft 8 is rotated around the axis as the center.
[0026] The lower ground contact shaft 8 is rotated under the drive of the front lower swing arm 10, thereby driving the rear lower swing arm sleeved at the rear end of the lower ground contact shaft 8 to swing upwards around the axis of the lower ground contact shaft 8, pulling the rear vertical connecting rod 9 to move upwards, so that the rear upper swing arm swings upwards around the end connected with the rear vertical connecting rod 9, and the pull rod 6 of the ground switch 4 swings upwards, thereby pulling the knife switch of the ground switch 4 to move in an arc, so that the ground switch 4 is closed.
[0027] When the ground switch 4 is opened, the sleeve wrench is reversely rotated, so that the upper ground contact shaft 5 is reversely rotated, thereby driving the front upper swing arm 11 to swing downwards around the axis of the upper ground contact shaft 5, thus driving the front vertical connecting rod 7 to move downwards, and further driving the front lower swing arm 10 to swing downwards around the axis of the lower ground contact shaft 8, so that the lower ground contact shaft 8 is rotated around the axis.
[0028] The lower ground contact shaft 8 is rotated under the drive of the front lower swing arm 10, thereby driving the rear lower swing arm sleeved at the rear end of the lower ground contact shaft 8 to swing downwards around the axis of the lower ground contact shaft 8, pulling the rear vertical connecting rod 9 to move downwards, so that the rear upper swing arm swings downwards around the end connected with the rear vertical connecting rod 9, and the pull rod 6 of the ground switch 4 swings downwards, thereby pulling the knife switch of the ground switch 4 to move in an arc, so that the ground switch 4 is opened.
[0029] Due to the segmented structure, the rear vertical connecting rod 9 and the front vertical connecting rod 7 are located on the two sides of the branch copper bar 3, and there is a large safety gap between the rear vertical connecting rod 9 and the front vertical connecting rod 7 and the branch copper bar 3, which is much larger than 300 mm, and the two ends of the lower ground contact shaft 8 are connected with the lower ends of the rear vertical connecting rod 9 and the front vertical connecting rod 7 through the rear lower swing arm and the front lower swing arm 10, so that the lower ground contact shaft 8 is located at the lower part of the cabinet 1 and below the branch copper bar 3, and the vertical distance between the lower ground contact shaft 8 and the branch copper bar 3 is also much larger than 300 mm, and the upper ground contact shaft 5 is located at the front half of the cabinet 1, and the distance between the upper ground contact shaft 5 and the branch copper bar is also more than 300 mm.
[0030] The original ground operation shaft 2 is changed into the segmented structure, so that there is no contact type intersection between the segmented structure and the branch copper bar 3, and the safety distance between the segmented structure and the branch copper bar 3 is greater than 300 mm, so that the safety distance can be met without setting the insulating plate, and the safety is effectively improved.
[0031] The utility model is not limited to the above embodiment, on the basis of the technical scheme of the disclosure, the skilled in the art can make some substitutions and deformation to some technical features according to the disclosed technical content without creative labor, and these substitutions and deformation are all within the protection scope of the utility model.
Claims
1. A sectionalized connection device for high voltage cabinet grounding interlocking operation, characterized by: The upper rotating mechanism is connected with the middle part of the front end of the cabinet body and the upper part of the front vertical connecting mechanism, the lower part of the front vertical connecting mechanism is connected with the front part of the lower rotating mechanism, the rear end of the lower rotating mechanism is connected with the lower part of the rear vertical connecting mechanism, the lower rotating mechanism is located at the lower part of the cabinet body, and the upper part of the rear vertical connecting mechanism is connected with the grounding switch.
2. A sectionalized connecting device for ground interlocking operation of a high voltage cabinet according to claim 1, characterized in that: The upper rotating mechanism comprises an upper grounding rotating shaft, the front end of the upper grounding rotating shaft is connected with the middle part of the front end of the cabinet body and matched with the insertion hole on the cabinet door, and the rear end of the upper grounding rotating shaft is connected with the front vertical connecting mechanism.
3. A sectionalized connecting device for ground interlocking operation of a high voltage cabinet according to claim 2, characterized in that: The front vertical connecting mechanism comprises a front vertical connecting rod, the upper end of the front vertical connecting rod is connected with one end of the front upper swing arm, the other end of the front upper swing arm is connected with the rear end of the upper grounding rotating shaft, the lower end of the front vertical connecting rod is connected with one end of the front lower swing arm, and the other end of the front lower swing arm is connected with the front part of the lower rotating mechanism. The lower rotating mechanism comprises a lower grounding rotating shaft, the front end of the lower grounding rotating shaft is connected with the other end of the front lower swing arm, and the rear end of the lower grounding rotating shaft is connected with the lower part of the rear vertical connecting mechanism.
4. A sectionalized connecting device for ground interlocking operation of a high voltage cabinet according to claim 3, characterized in that: The rear vertical connecting mechanism comprises a rear vertical connecting rod, the lower end of the front vertical connecting rod is connected with one end of the rear lower swing arm, the other end of the rear lower swing arm is connected with the rear end of the lower grounding rotating shaft, the upper end of the rear vertical connecting rod is connected with one end of the rear upper swing arm, and the other end of the rear upper swing arm is connected with the pull rod of the grounding switch.