One-key sequence control double-confirmation structure of grounding switch mechanism

Abstract

The utility model relates to the technical field of power transmission and transformation equipment, in particular to a one-key sequence control double-confirmation structure of a grounding switch mechanism. Comprising a mechanism output shaft penetrating through a grounding switch mechanism, a machine core side plate is arranged on one side of the grounding switch mechanism, a support is installed on the outer side of the machine core side plate, an auxiliary switch is installed on the support, a first bevel gear is installed on a rotating shaft of the auxiliary switch, a second bevel gear is arranged at one end of the mechanism output shaft, and the first bevel gear is meshed with the second bevel gear. A cam is fixedly installed on the mechanism output shaft, a switching-on microswitch and a switching-off microswitch are installed on the machine core side plate, and the cam is used for making contact with the switching-on microswitch and the switching-off microswitch to send out signals. Compared with the prior art, the mechanism output shaft and the auxiliary switch are in meshing transmission through the bevel gear, the structure is compact, equipment space is saved, accuracy is high, and one-key sequential control double confirmation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission and transformation equipment, in particular to a one-button sequential control double-confirmation structure of a grounding switch mechanism. Background Art

[0002] Substation one-touch sequential control is a key technology for promoting the deep integration of modern information technology and power grid technology and building an intelligent operation and maintenance system. This system enables the transition from traditional manual operations to automated and intelligent ones, reducing the number of manual operations and time required. This provides technical support for the development of smart grids, reducing staff and increasing efficiency, and further enhances the inherent safety of the power grid and the reliability of power supply.

[0003] The technical guidelines for one-touch sequential control in substations require that "double confirmation" of an isolating grounding switch requires simultaneous corresponding changes in at least two status indicators, operating on different principles or from different sources, as primary and secondary criteria. Existing technologies, such as CN215496530U, disclose a spring-operated mechanism for a fault grounding switch with one-touch sequential control. This mechanism utilizes an auxiliary switch and a microswitch to achieve this requirement. However, its structure is complex, and the output shaft and auxiliary switch are connected by a crank arm, which occupies a large space and is not conducive to miniaturization. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a one-button sequential control double-confirmation structure for a grounding switch.

[0005] To achieve the above-mentioned purpose, a one-button sequential control double-confirmation structure of a grounding switch mechanism is designed, including a mechanism output shaft arranged through the grounding switch mechanism, a movement side plate is provided on one side of the grounding switch mechanism, a support is installed on the outer side of the movement side plate, an auxiliary switch is installed on the support, a first bevel gear is installed on the rotating shaft of the auxiliary switch, a second bevel gear is provided at one end of the mechanism output shaft, the first bevel gear is meshed with the second bevel gear, a cam is fixedly installed on the mechanism output shaft, a closing microswitch and an opening microswitch are installed on the movement side plate, and the cam is used to contact the closing microswitch and the opening microswitch to send signals.

[0006] The outer side of the rotating shaft of the auxiliary switch is rectangular, and the first bevel gear is embedded in the outer side of the rotating shaft.

[0007] The closing micro switch and the opening micro switch are installed on the outside of the movement side plate.

[0008] One end of the output shaft of the mechanism is provided with a spline.

[0009] Compared with the prior art, the utility model has a compact structure, saves equipment space, and the output signal of the auxiliary switch is used as the first criterion; the cam fixed on the output shaft of the mechanism and the signal triggered by the closing microswitch and the opening microswitch are used as the second criterion, with high accuracy, realizing one-button sequential control "double confirmation". BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the present utility model.

[0011] Figure 2 It is a cross-sectional view of the present utility model.

[0012] See also Figure 1-Figure 2 , among which, 1 is the grounding switch mechanism, 2 is the auxiliary switch, 2-1 is the rotating shaft, 3 is the closing micro switch, 4 is the opening micro switch, 5 is the movement side plate, 6 is the support, 7 is the first bevel gear, 8 is the second bevel gear, 9 is the mechanism output shaft, 9-1 is the spline, and 10 is the cam. DETAILED DESCRIPTION

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] like Figure 1-Figure 2 As shown, a mechanism output shaft 9 is set through the grounding switch mechanism 1, a movement side plate 5 is provided on one side of the grounding switch mechanism 1, a support 6 is installed on the outer side of the movement side plate 5, an auxiliary switch 2 is installed on the support 6, and a rotating shaft 2-1 of the auxiliary switch 2 is installed with a first bevel gear 7. A second bevel gear 8 is provided at one end of the mechanism output shaft 9, and the first bevel gear 7 is engaged with the second bevel gear 8. A cam 10 is fixedly installed on the mechanism output shaft 9, and a closing microswitch 3 and an opening microswitch 4 are installed on the movement side plate 5. The cam 10 is used to contact the closing microswitch 3 and the opening microswitch 4 to send signals.

[0015] The outer side of the rotating shaft 2 - 1 of the auxiliary switch 2 is rectangular, and the first bevel gear 7 is embedded in the outer side of the rotating shaft 2 - 1 .

[0016] The closing micro switch 3 and the opening micro switch 4 are installed on the outside of the movement side plate 5.

[0017] One end of the mechanism output shaft 9 is provided with a spline 9-1.

[0018] When the present invention is in use, the mechanism output shaft 9 is connected to the grounding switch through the spline 9-1. When the grounding switch mechanism 1 performs closing and opening actions, the mechanism output shaft 9 rotates in the forward and reverse directions, and drives the rotating shaft 2-1 of the auxiliary switch 2 to rotate through the engagement of the first bevel gear 7 and the second bevel gear 8, thereby linking the switching of the normally open and normally closed contacts of the auxiliary switch 2, which serves as the first criterion for the "double confirmation" of the one-button sequential control.

[0019] The positions of the closing microswitch 3 and the opening microswitch 4 installed on the outside of the movement side plate 5 correspond exactly to the closing and opening positions of the grounding switch. A cam 10 is installed on the mechanism output shaft 9. When the mechanism performs the closing operation, the mechanism output shaft 9 drives the cam 10 to rotate clockwise, and the closing microswitch 3 is pressurized and sends a closing signal; when the mechanism output shaft 9 drives the cam 10 to rotate counterclockwise, the opening microswitch 4 is pressurized and outputs an opening signal, which serves as the second criterion for the "double confirmation" of one-button sequential control.

[0020] The present utility model is an improvement on the double confirmation structure of the one-button sequential control of the grounding switch. The operating structure of the mechanism output shaft 9 belongs to the existing technology and the operating mechanism of the patent cited in the background technology can be directly adopted. The grounding switch also belongs to the existing technology and is not included in the protection scope of the present utility model.

[0021] The double confirmation structures of the present invention are independent of each other and have good non-homology; the auxiliary switch 2 of the first criterion is transmitted to the mechanism output shaft 9 through a bevel gear, and the structure is compact, which can save equipment space; the auxiliary switch 2 and the cam 10, the closing microswitch 4, and the opening microswitch 5 are all installed on the outside of the movement side plate 5, with good visibility, and easy installation, maintenance, and disassembly; the cam 10 of the second criterion is installed on the mechanism output shaft 9, which can directly reflect the closing and opening status of the mechanism output shaft 9 with high accuracy.

Claims

1. A one-button sequential control double confirmation structure for a grounding switch mechanism, characterized by: The invention comprises a mechanism output shaft (9) which passes through a grounding switch mechanism (1), a movement side plate (5) being provided on one side of the grounding switch mechanism (1), a support (6) being installed on the outer side of the movement side plate (5), an auxiliary switch (2) being installed on the support (6), a rotating shaft (2-1) of the auxiliary switch (2) being installed with a first bevel gear (7), a second bevel gear (8) being provided at one end of the mechanism output shaft (9), the first bevel gear (7) being meshed with the second bevel gear (8), a cam (10) being fixedly installed on the mechanism output shaft (9), a closing micro switch (3) and an opening micro switch (4) being installed on the movement side plate (5), and the cam (10) being used for contacting the closing micro switch (3) and the opening micro switch (4) to send a signal.

2. The one-button sequential control double confirmation structure of the grounding switch mechanism according to claim 1 is characterized in that: The outer side of the rotating shaft (2-1) of the auxiliary switch (2) is rectangular, and the first bevel gear (7) is embedded in the outer side of the rotating shaft (2-1).

3. The one-button sequential control double confirmation structure of the grounding switch mechanism according to claim 1 is characterized in that: The closing micro switch (3) and the opening micro switch (4) are mounted on the outside of the movement side plate (5).

4. The one-button sequential control double confirmation structure of the grounding switch mechanism according to claim 1, characterized in that: One end of the mechanism output shaft (9) is provided with a spline (9-1).

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