Operating mechanism for emergency opening of high-voltage cabinet switch

Abstract

The invention discloses an operating mechanism for emergency opening of a high-voltage cabinet switch. The operating mechanism comprises a mounting seat and a driving mechanism, the mounting seat is matched with a mounting opening in the middle of the door plate for mounting, an arc-shaped bin is arranged at the rear end of the mounting seat, connecting shafts are fixedly connected to the upper end and the lower end of the arc-shaped bin, arc-shaped plates are rotationally connected to the middles of the connecting shafts, the rear ends of the arc-shaped plates are fixedly connected with the front end of the working bin, and a push rod is slidably connected into a sliding opening in the rear end of the working bin; the driving mechanism is arranged between the arc-shaped bin and the working bin, and the rear end of the driving mechanism is fixedly connected with the front end of the pushing rod. According to the operating mechanism for the emergency opening of the high-voltage switch cabinet, the operation stability of all the mechanisms can be effectively guaranteed while the emergency opening work of the high-voltage switch cabinet is rapidly carried out; and the safety and the operation efficiency of the operating mechanism for emergency opening of the high-voltage cabinet switch are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of circuit emergency protection, in particular to an operating mechanism for emergency opening of a high-voltage cabinet switch. Background Art

[0002] High-voltage switchgear refers to electrical products with voltage levels of 3.6kV-550kV, which are used for switching, controlling or protecting in power generation, transmission, distribution, power conversion and consumption of power systems. They mainly include high-voltage disconnectors and grounding switches, high-voltage load switches, high-voltage automatic reclosing and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices and high-voltage switchgear. The switchgear has functions such as overhead incoming and outgoing lines, cable incoming and outgoing lines, and busbar connection. It is mainly suitable for various places such as power plants, substations, petrochemicals, metallurgical steel rolling, light industry and textiles, factories and mines, residential areas, high-rise buildings, etc. The emergency tripping of the high-voltage switch is used to immediately stop the operation of the high-voltage switchgear in an emergency. The existing operating mechanism for emergency tripping of some high-voltage cabinet switches uses a method of directly pressing a push rod by a button to perform emergency tripping of the high-voltage cabinet switch; There are some problems now. For example, the method of directly pressing the push rod by pressing the button may affect the stability of the emergency opening of the high-voltage cabinet switch, and then may affect the safety of the emergency opening of the high-voltage cabinet switch. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an operating mechanism for emergency opening of a high-voltage cabinet switch, which can effectively ensure the stability of operation between various mechanisms while realizing rapid emergency opening of the high-voltage switch cabinet, effectively improve the safety and operating efficiency of the operating mechanism for emergency opening of the high-voltage cabinet switch, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: an operating mechanism for emergency opening of a high-voltage cabinet switch, comprising a mounting seat and a driving mechanism; Mounting seat: It is installed in conjunction with the mounting opening in the middle of the door panel. An arc-shaped bin is arranged at the rear end of the mounting seat. The upper and lower ends of the arc-shaped bin are fixedly connected with connecting shafts. The middle of the connecting shaft is rotatably connected with an arc-shaped plate. The rear end of the arc-shaped plate is fixedly connected with the front end of the working bin. A push rod is slidably connected inside the sliding opening at the rear end of the working bin. Driving mechanism: It is arranged between the arc-shaped compartment and the working compartment. The rear end of the driving mechanism is fixedly connected to the front end of the push rod. It can effectively ensure the stability of operation between various mechanisms while realizing the rapid emergency opening of the high-voltage switch cabinet, and effectively improve the safety and operating efficiency of the operating mechanism of the emergency opening of the high-voltage cabinet switch.

[0005] Furthermore, the driving mechanism includes a driving shaft, a driving bevel gear, a rotating shaft, a driven bevel gear, a fixed shaft and a connecting column. The driving shaft is rotatably connected to the inside of the mounting seat through a bearing, the rear end of the driving shaft is fixedly connected to the driving bevel gear, the top wall of the arc-shaped bin is also rotatably connected to the rotating shaft through a bearing, the middle part of the rotating shaft is fixedly connected to the driven bevel gear, the driven bevel gear is meshed with the driving bevel gear, the lower end of the rotating shaft is fixedly connected to the fixed shaft, the connecting column is also rotatably arranged at the front end of the working bin through a bearing, the front end of the connecting column is socketed with the rear end of the fixed shaft, and the rear end of the connecting column is fixedly connected to the front end of the push rod to realize the rotation of the working bin.

[0006] Furthermore, the driving mechanism also includes a guide groove, which is arranged in the middle of the arc-shaped bin. The middle of the connecting column is slidably connected to the inside of the guide groove, providing space for the rotation of the connecting column and providing a guide for the rotation of the working bin.

[0007] Furthermore, a knob is fixedly connected to the front end of the driving shaft to provide driving force for the rotation of the working chamber.

[0008] Furthermore, the front end of the connecting column is fixedly connected to the baffle, the lower end of the mounting seat is provided with a circular hole, the inside of the circular hole is slidably connected with a sliding rod, the rear end of the sliding rod is cooperated with the lower end of the baffle, and the front end of the sliding rod is provided with a button to realize emergency opening.

[0009] Furthermore, a support plate is provided at the front end inside the working chamber, and evenly distributed screws are threadedly connected between the support plate and the working chamber. The middle part of the support plate is also installed in cooperation with the rear end of the connecting column through a bearing to ensure the stability of the working chamber.

[0010] Furthermore, a rib groove is provided in the middle of the push rod, a slip ring is slidably connected inside the rib groove, a spring is fixedly connected between the slip ring and the rear wall of the working chamber, and the spring is movably sleeved on the outer surface of the push rod to achieve resetting of the push rod.

[0011] Furthermore, slide rails are provided at both left and right ends of the working bin, and ribs are fixedly connected to both left and right ends of the slip ring. The ribs are slidably connected to the laterally adjacent slide rails to provide driving force for the sliding of the push rod.

[0012] Furthermore, a mounting plate is fixedly connected to the front end of the mounting seat, and the mounting plate is connected to the door panel by two evenly distributed screws. Turning marks are provided at both upper and lower ends of the mounting plate to achieve stable installation of the operating mechanism and the door panel.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the operating mechanism for the emergency opening of the high-voltage cabinet switch has the following advantages: The operator turns the knob, and the rotation of the knob drives the driving shaft to rotate. The rotation of the driving shaft drives the driving bevel gear to rotate, and then drives the driven bevel gear to rotate. The rotation of the driven bevel gear drives the rotating shaft to rotate. The rotation of the rotating shaft drives the fixed shaft to rotate, and then drives the connecting column to rotate around the central axis of the rotating shaft under the guidance of the guide groove until the central axis of the connecting column is perpendicular to the plane of the door panel. The rotation of the connecting column makes the arc plates rotate around the central axis of the longitudinally adjacent connecting shafts, thereby realizing the rotation of the working compartment, and finally makes the push rod rotate until the central axis of the push rod is perpendicular to the plane of the door panel. Then the operator stops turning the knob and presses the button, which makes the slide rod It slides backward inside the circular hole, and then pushes the connecting column backward through the baffle. The backward movement of the connecting column causes the push rod to move backward, and the backward movement of the push rod drives the slip ring backward at the same time. The backward movement of the slip ring drives the transversely adjacent ribs to slide inside the transversely adjacent slide rails, thereby ensuring the stability of the movement of the push rod and compressing the spring at the same time. The rear end of the push rod contacts the external circuit breaker button to open the circuit breaker, thereby completing the emergency opening of the high-voltage cabinet switch. While realizing the rapid emergency opening of the high-voltage switch cabinet, it can effectively ensure the stability of the operation between the various mechanisms, and effectively improve the safety and operating efficiency of the operating mechanism of the emergency opening of the high-voltage cabinet switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure inside the present invention; Figure 3 This is an enlarged structural schematic diagram of location A of the present invention; Figure 4 This is a schematic diagram of the enlarged structure of B of the present invention; Figure 5 It is a structural schematic diagram of the rear side of the present invention.

[0015] In the figure: 1 mounting seat, 2 driving mechanism, 21 driving shaft, 22 driving bevel gear, 23 rotating shaft, 24 driven bevel gear, 25 fixed shaft, 26 connecting column, 27 guide groove, 3 arc plate, 4 working chamber, 5 pushing rod, 6 slip ring, 7 spring, 8 supporting plate, 9 screw 1, 10 knob, 11 mounting plate, 12 connecting shaft, 13 screw 2, 14 rib, 15 slide rail, 16 door panel, 17 slide rod, 18 baffle. Implementation

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-5 , This embodiment provides a technical solution: an operating mechanism for emergency opening of a high-voltage cabinet switch, comprising a mounting seat 1 and a driving mechanism 2; Mounting seat 1: It is installed in cooperation with the mounting opening in the middle of the door panel 16. An arc-shaped bin is provided at the rear end of the mounting seat 1. The upper and lower ends of the arc-shaped bin are fixedly connected with a connecting shaft 12. The middle of the connecting shaft 12 is rotatably connected with an arc-shaped plate 3. The rear end of the arc-shaped plate 3 is fixedly connected with the front end of the working bin 4. A push rod 5 is slidably connected inside the sliding opening at the rear end of the working bin 4. The front end of the mounting seat 1 is fixedly connected with a mounting plate 11. The mounting plate 11 is connected to the door panel 16 by evenly distributed screws 13. Turning marks are provided at the upper and lower ends of the mounting plate 11. Driving mechanism 2: It is arranged between the arc bin and the working bin 4. The rear end of the driving mechanism 2 is fixedly connected to the front end of the push rod 5. The driving mechanism 2 includes a driving shaft 21, a driving bevel gear 22, a rotating shaft 23, a driven bevel gear 24, a fixed shaft 25 and a connecting column 26. The driving shaft 21 is rotatably connected to the inside of the mounting seat 1 through a bearing. The front end of the driving shaft 21 is fixedly connected to the knob 10, and the rear end of the driving shaft 21 is fixedly connected to the driving bevel gear 22. The top wall of the arc bin is also rotatably connected to the top wall of the arc bin through a bearing. The rotating shaft 23 is connected to the working chamber 4, and the middle part of the rotating shaft 23 is fixedly connected to the driven bevel gear 24, and the driven bevel gear 24 is meshed with the driving bevel gear 22. The lower end of the rotating shaft 23 is fixedly connected to the fixed shaft 25, and the connecting column 26 is also rotatably arranged at the front end of the working chamber 4 through the bearing. The front end of the connecting column 26 is sleeved with the rear end of the fixed shaft 25, and the rear end of the connecting column 26 is fixedly connected to the front end of the pushing rod 5. The front end of the connecting column 26 is fixedly connected to the baffle 18, and the lower end of the mounting seat 1 is provided with a round hole. The inner part of the circular hole is slidably connected with a slide bar 17, and the rear end of the slide bar 17 is matched with the lower end of the baffle 18 for installation. The front end of the slide bar 17 is provided with a button. The driving mechanism 2 also includes a guide groove 27, which is arranged in the middle part of the arc-shaped bin. The middle part of the connecting column 26 is slidably connected with the inner part of the guide groove 27. Turn the knob 10, the knob 10 rotates to drive the driving shaft 21 to rotate, the driving shaft 21 rotates to drive the driving bevel gear 22 to rotate, and then drives the driven bevel gear 24 to rotate, the driven bevel gear 24 rotates to drive the rotating shaft 23 to rotate, the rotating shaft 23 rotates to drive the fixed shaft 25 to rotate, and then drives the connecting column 26 to rotate around the central axis of the rotating shaft 23 under the guidance of the guide groove 27 until the central axis of the connecting column 26 is perpendicular to the plane of the door panel 16. The rotation of the connecting column 26 makes the arc plate 3 rotate around the central axis of the longitudinally adjacent connecting shaft 12, thereby realizing the rotation of the working bin 4, and finally makes the push rod 5 rotate to the state where the central axis of the push rod 5 is perpendicular to the plane of the door panel 16. Among them: a support plate 8 is provided at the front end of the working chamber 4, and the support plate 8 and the working chamber 4 are threadedly connected with evenly distributed screws 9, and the middle part of the support plate 8 is also installed with the rear end of the connecting column 26 through a bearing; Wherein: a rib groove is provided in the middle of the push rod 5, and a slip ring 6 is slidably connected inside the rib groove. A spring 7 is fixedly connected between the slip ring 6 and the rear wall of the working chamber 4, and the spring 7 is movably sleeved on the outer surface of the push rod 7. Slide rails 15 are provided on the left and right ends of the working chamber 4, and ribs 14 are fixedly connected on the left and right ends of the slip ring 6. The ribs 14 are slidably connected to the laterally adjacent slide rails 15. Pressing the button makes the slide rod 17 slide backward inside the circular hole, and then pushes the connecting column 26 backward through the baffle 18. The backward movement of the connecting column 26 makes the push rod 5 move backward. The backward movement of the push rod 5 drives the slip ring 6 backward at the same time. The backward movement of the slip ring 6 drives the laterally adjacent ribs 14 to slide inside the laterally adjacent slide rails 15, thereby ensuring the stability of the movement of the push rod 5 and compressing the spring 7 at the same time. The rear end of the push rod 5 contacts the external circuit breaker button to open the circuit breaker, thereby completing the emergency opening of the high-voltage cabinet switch.

[0018] The working principle of the operating mechanism for emergency opening of a high-voltage cabinet switch provided by the present invention is as follows: during operation, the mounting plate 11 is first stably connected to the door panel 16 by means of screws 13, thereby realizing stable installation of the mounting seat 1, the working compartment 4 and other mechanisms. After the installation is stable, the central axis of the push rod 5 is parallel to the plane of the door panel 16 as the initial state, and the central axis of the push rod 5 is perpendicular to the plane of the door panel 16 as the working state. When the emergency opening of the high-voltage cabinet switch is required, the personnel rotates the knob 10, and the rotation of the knob 10 drives the driving shaft 21 to rotate, and the rotation of the driving shaft 21 drives the driving bevel gear 22 to rotate, thereby driving the driven bevel gear 24 to rotate, and the rotation of the driven bevel gear 24 drives the rotating shaft 23 to rotate, and the rotation of the rotating shaft 23 drives the fixed shaft 25 to rotate, thereby driving the connecting column 26 to rotate around the central axis of the rotating shaft 23 under the guiding action of the guide groove 27 until the central axis of the connecting column 26 is perpendicular to the plane of the door panel 16, and the rotation of the connecting column 26 causes the arc plates 3 to rotate around the longitudinally adjacent connecting shafts. The central axis of the connecting shaft 12 rotates, thereby realizing the rotation of the working chamber 4, and finally causing the push rod 5 to rotate to a state where the central axis of the push rod 5 is perpendicular to the plane of the door panel 16. Then the personnel stops turning the knob 10 and presses the button, causing the sliding rod 17 to slide backward inside the circular hole, and then pushes the connecting column 26 backward through the baffle 18. The backward movement of the connecting column 26 causes the push rod 5 to move backward. While the push rod 5 moves backward, it drives the slip ring 6 backward. The backward movement of the slip ring 6 drives the laterally adjacent ribs 14 to slide inside the laterally adjacent slide rails 15, ensuring the stability of the movement of the push rod 5 and compressing the spring 7 at the same time. The rear end of the push rod 5 contacts the external circuit breaker button to open the circuit breaker, thereby completing the emergency opening of the high-voltage cabinet switch. When the personnel stops pressing the button, the elastic force of the spring 7 pushes the push rod 5 forward through the slip ring 6, thereby moving the connecting column 26 forward, and the push rod 5 and the connecting column 26 are both restored to their initial positions. Then the personnel reversely rotates the knob 10 to rotate the working chamber 4 to its initial state.

[0019] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An operating mechanism for emergency opening of a high-voltage cabinet switch, characterized in that: It comprises a mounting seat (1) and a driving mechanism (2); A mounting seat (1): it is mounted in cooperation with a mounting opening in the middle of the door panel (16); a curved bin is arranged at the rear end of the mounting seat (1); the upper and lower ends of the curved bin are fixedly connected to a connecting shaft (12); the middle of the connecting shaft (12) is rotatably connected to a curved plate (3); the rear end of the curved plate (3) is fixedly connected to the front end of the working bin (4); a push rod (5) is slidably connected to the inside of a sliding opening at the rear end of the working bin (4); The driving mechanism (2) is arranged between the arc-shaped bin and the working bin (4), and the rear end of the driving mechanism (2) is fixedly connected to the front end of the pushing rod (5).

2. The operating mechanism for emergency opening of a high-voltage cabinet switch according to claim 1 is characterized in that: The driving mechanism (2) comprises a driving shaft (21), a driving bevel gear (22), a rotating shaft (23), a driven bevel gear (24), a fixed shaft (25) and a connecting column (26); the driving shaft (21) is rotatably connected to the inside of the mounting seat (1) via a bearing; the rear end of the driving shaft (21) is fixedly connected to the driving bevel gear (22); the top wall of the arc-shaped bin is also rotatably connected to the rotating shaft (23) via a bearing; the middle part of the rotating shaft (23) is fixedly connected to the driven bevel gear (24); the driven bevel gear (24) is meshingly connected to the driving bevel gear (22); the lower end of the rotating shaft (23) is fixedly connected to the fixed shaft (25); the connecting column (26) is also rotatably arranged at the front end of the working bin (4) via a bearing; the front end of the connecting column (26) is sleeved with the rear end of the fixed shaft (25); and the rear end of the connecting column (26) is fixedly connected to the front end of the pushing rod (5).

3. The operating mechanism for emergency opening of a high-voltage cabinet switch according to claim 2 is characterized in that: The driving mechanism (2) further comprises a guide groove (27), wherein the guide groove (27) is arranged in the middle of the arc-shaped bin, and the middle of the connecting column (26) is slidably connected to the inside of the guide groove (27).

4. The operating mechanism for emergency opening of a high-voltage cabinet switch according to claim 2 is characterized in that: A knob (10) is fixedly connected to the front end of the driving shaft (21).

5. The operating mechanism for emergency opening of a high-voltage cabinet switch according to claim 2 is characterized in that: The front end of the connecting column (26) is fixedly connected to the baffle (18), the lower end of the mounting seat (1) is provided with a circular hole, the interior of the circular hole is slidably connected to a slide rod (17), the rear end of the slide rod (17) is mounted in cooperation with the lower end of the baffle (18), and the front end of the slide rod (17) is provided with a button.

6. The operating mechanism for emergency opening of a high-voltage cabinet switch according to claim 2 is characterized in that: A support plate (8) is provided at the front end of the working chamber (4), and evenly distributed screws (9) are threadedly connected between the support plate (8) and the working chamber (4), and the middle part of the support plate (8) is also mounted in cooperation with the rear end of the connecting column (26) via a bearing.

7. The operating mechanism for emergency opening of a high-voltage cabinet switch according to claim 1 is characterized in that: A rib groove is provided in the middle of the push rod (5), a slip ring (6) is slidably connected inside the rib groove, a spring (7) is fixedly connected between the slip ring (6) and the rear wall of the working chamber (4), and the spring (7) is movably sleeved on the outer surface of the push rod (7).

8. The operating mechanism for emergency tripping of a high-voltage cabinet switch according to claim 1 is characterized in that: Slide rails (15) are provided at both left and right ends of the working chamber (4), and ribs (14) are fixedly connected to both left and right ends of the slip ring (6), and the ribs (14) are slidably connected to laterally adjacent slide rails (15).

9. The operating mechanism for emergency tripping of a high-voltage cabinet switch according to claim 1 is characterized in that: The front end of the mounting seat (1) is fixedly connected to a mounting plate (11), the mounting plate (11) is connected to the door panel (16) via evenly distributed screws (13), and the upper and lower ends of the mounting plate (11) are provided with turning marks.

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