Electric control mechanism of disconnecting switch

Abstract

The utility model discloses an electric control mechanism of an isolating switch, which comprises a mounting bracket, a transmission main shaft, a double-throw clutch mechanism, an electric mechanism and a manual mechanism, and is characterized in that the double-throw clutch mechanism comprises a driving shaft and a driven shaft; the double-throw clutch mechanism, the electric mechanism and the manual mechanism are all connected or fixed with the mounting bracket; the transmission main shaft is located in the double-throw clutch mechanism. A driven shaft of the double-throw clutch mechanism is connected with the transmission main shaft, a driving shaft of the double-throw clutch mechanism is connected with the electric mechanism, and the manual mechanism is connected with the driven shaft. During electric driving, the driving shaft is connected with the driven shaft, the electric mechanism drives the double-throw clutch mechanism to act, and then the transmission main shaft is driven to rotate; during manual driving, the driving shaft is separated from the driven shaft, the manual mechanism drives the driven shaft to rotate, and then the transmission main shaft is driven to rotate. According to the utility model, the disconnecting switch can be electrically controlled to be switched on and off and can also be manually controlled to be switched on and off, so that the practicability and the safety of the disconnecting switch are improved, and a high-voltage electric appliance is safer and more reliable in operation or maintenance.

Description

Technical Field

[0001] The device relates to the technical field of power products, and in particular to an electric control mechanism of an isolating switch. Background Art

[0002] Isolating switches generally refer to high-voltage isolating switches. Their main function is to ensure the safety of high-voltage electrical appliances and devices during maintenance work and to isolate voltage. The function of the isolating switch is to disconnect the circuit of no-load current so that there is an obvious disconnection point between the maintenance equipment and the power supply. Some isolating switches are located inside high-voltage electrical appliances. After the high-voltage electrical appliances are powered off, based on safety regulations, it is best to disconnect the isolating switch before opening the cabinet door. In this case, it is necessary to use an electric method to disconnect the isolating switch, while also retaining the manual method to disconnect the isolating switch. This requires an electric mechanism that can realize both electric control and manual operation to disconnect the isolating switch. Most of the existing isolating switches on the market lack an electric control mechanism and cannot meet the actual needs of users. Summary of the invention

[0003] The purpose of the utility model is to provide an electric control mechanism for an isolating switch to solve the above-mentioned problems.

[0004] In order to achieve the above purpose, the utility model can adopt the following technical solutions:

[0005] An electric control mechanism for an isolating switch, characterized in that it comprises a mounting bracket, a transmission main shaft, a double-throw clutch mechanism, an electric mechanism, and a manual mechanism, wherein the double-throw clutch mechanism comprises a driving shaft and a driven shaft;

[0006] The double-throw clutch mechanism, the electric mechanism, and the manual mechanism are all connected or fixed to the mounting bracket;

[0007] The transmission main shaft is located inside the double throw clutch mechanism;

[0008] The driven shaft of the double throw clutch mechanism is connected to the transmission main shaft;

[0009] The driving shaft of the double-throw clutch mechanism is connected to the electric mechanism, and the manual mechanism is connected to the driven shaft;

[0010] When the driving shaft is connected to the driven shaft, it is in an electric drive state, and the electric mechanism drives the double-throw clutch mechanism to operate, thereby driving the transmission main shaft to rotate;

[0011] When the driving shaft is separated from the driven shaft, it is in a manual driving state, and the manual mechanism drives the driven shaft to rotate, thereby driving the transmission main shaft to rotate.

[0012] According to a preferred embodiment of the utility model, the manual mechanism includes a manual turning handle and a manual locking mechanism, and the manual locking mechanism includes a reset mechanism, a four-position locking assembly, and a transmission cylinder; the transmission cylinder is fixedly connected to the driven shaft, and the four-position locking assembly is located inside the transmission cylinder; one side of the manual turning handle is located inside the transmission cylinder, and four-position ball bearings are arranged on the manual turning handle, and when the manual turning handle is pulled out, the four-position ball bearings enter the four notches of the four-position locking assembly.

[0013] According to a preferred embodiment of the utility model, the reset mechanism is located outside the transmission cylinder, a limit groove is provided outside the transmission cylinder, and a limit assembly is provided on the reset mechanism. When the four-position ball enters the bottom of the groove of the four-position locking assembly, the ball in the limit assembly moves into the limit groove, and the limit assembly performs limit locking.

[0014] According to a preferred implementation manner of the utility model, when the manual turning handle and the manual locking mechanism are in a locked connection state, the reset mechanism is pushed to disconnect the manual turning handle from the manual locking mechanism, and the driving shaft and the driven shaft are restored to be connected.

[0015] According to a preferred implementation manner of the utility model, the electric mechanism includes a driving mechanism and a gear transmission mechanism, and the gear transmission mechanism is meshedly connected with a gear on the driving shaft.

[0016] According to a preferred implementation manner of the utility model, the transmission main shaft runs through the driving shaft and the driven shaft.

[0017] According to a preferred embodiment of the utility model, a keyway is arranged on the transmission main shaft, and a key cam is arranged on the driven shaft of the double-throw clutch mechanism. The key cam is matched with the keyway, and the key cam can slide in the direction of the keyway. The transmission main shaft and the driven shaft are also connected and rotate synchronously through the matching connection between the keyway and the key cam.

[0018] According to a preferred implementation manner of the utility model, two micro switches are arranged on the mounting bracket, which are respectively used to detect the states of the double-throw clutch mechanism and the manual mechanism.

[0019] According to a preferred embodiment of the utility model, the mounting bracket includes a mounting panel, a limiting support plate, a driving mechanism bracket, a top plate, a bottom plate and a plurality of fixing columns, and the various components in the mounting bracket are fixedly connected by the plurality of fixing columns.

[0020] Compared with the prior art, the beneficial effect of the utility model is that an electric control mechanism for the isolating switch is designed, which can not only electrically control the opening and closing of the isolating switch, but also manually control the opening and closing of the isolating switch, thereby improving the practicality and safety of the isolating switch and making high-voltage electrical appliances safer and more reliable during operation or maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an electric control mechanism of an isolating switch of the utility model;

[0022] Figure 2 It is a cross-sectional view of an electric control mechanism of an isolating switch of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a double-throw clutch mechanism of an electric control mechanism of an isolating switch of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a driven shaft of a double-throw clutch mechanism of an electric control mechanism of an isolating switch of the utility model;

[0025] Figure 5 The utility model is a structural schematic diagram of a four-position locking component of an electric control mechanism of an isolating switch. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings. The embodiments described below are only used to more clearly illustrate the technical solution of the utility model. They are selected embodiments of the utility model, not all embodiments, and cannot be used to limit the protection scope of the utility model. All other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 5, is an electric control mechanism of an isolating switch preferably used in the present invention, comprising a mounting bracket 1, a transmission main shaft 2, a double-throw clutch mechanism 3, an electric mechanism 4, and a manual mechanism 5, wherein the double-throw clutch mechanism 3, the electric mechanism 4, and the manual mechanism 5 are all connected or fixed to the mounting bracket 1; the mounting bracket 1 comprises a mounting panel 1.1, a limit support plate 1.2, a drive mechanism bracket 1.3, a top plate 1.4, a bottom plate 1.5, and a plurality of fixing columns, and the components in the mounting bracket 1 are fixedly connected through the plurality of fixing columns, and two micro switches 6.1 and 6.2 are arranged on the top plate 1.4; the double-throw clutch mechanism 3 comprises an active shaft 3.1 and a driven shaft 3.2; the electric mechanism 4 comprises a drive mechanism 4.1 and a gear transmission mechanism 4.2; the manual mechanism 5 comprises a manual turning handle 5.1 and a manual locking mechanism 5.2, and a four-position ball 5.1.1 is arranged on the manual turning handle 5.1, and the manual locking mechanism 5.2 comprises a reset mechanism 5.2.1, a four-position locking group The reset mechanism 5.2.1 is located outside the transmission cylinder 5.2.3, and a limit assembly 5.2.1.1 is provided on the reset mechanism 5.2.1. A limit groove 5.2.3.1 is provided outside the transmission cylinder 5.2.3; the four-position locking assembly 5.2.2 is located inside the transmission cylinder 5.2.3; one end of the manual turning handle 5.1 is located inside the transmission cylinder 5.2.3; the transmission main shaft 2 runs through the driving shaft 3.1 and the driven shaft 3.2. A keyway 2.1 is arranged on the driving main shaft 2, and a key convex 3.2.1 is arranged on the driven shaft 3.2. The key convex 3.2.1 is matched with the keyway 2.1, and the key convex 3.2.1 can slide in the direction of the keyway 2.1. The driving main shaft 2 and the driven shaft 3.2 are also connected and rotate synchronously through the keyway 2.1 and the key convex 3.2.1; the driven shaft 3.2 is connected with the driving main shaft 2 and the transmission cylinder 5.2.3, and the gear 3.1.1 on the driving shaft 3.1 is meshed and connected with the gear transmission mechanism 4.2.

[0028] In the electric drive state, the driving shaft 3.1 is connected to the driven shaft 3.2, the driving mechanism 4.1 drives the gear transmission mechanism 4.2 to operate, the gear transmission mechanism 4.2 drives the driving shaft 3.1 to rotate, the driving shaft 3.1 drives the driven shaft 3.2 to rotate and then drives the transmission main shaft 2 to rotate, and the transmission main shaft 2 drives the isolating switch to open and close.

[0029] When the electric drive is changed to manual drive, the manual handle 5.1 is pulled outwards, and when the four-position ball bearings 5.1.1 enter the bottom of the four notches of the four-position locking assembly 5.2.2, the ball bearings in the limit assembly 5.2.1.1 move into the limit groove 5.2.3.1, and the limit assembly 5.2.1.1 performs limit locking. At this time, the manual handle 5.1 is connected to the manual locking mechanism 5.2, the driving shaft 3.1 is separated from the driven shaft 3.2, and the manual locking mechanism 5.2 triggers the micro switch 6.1, which is closed and the state of the double-throw clutch mechanism detected is uploaded, and the state is changed to the manual drive state.

[0030] In the manual driving state, the manual turning handle 5.1 is rotated to drive the transmission cylinder 5.2.3 on the manual locking mechanism 5.2 to rotate, and then the driven shaft 3.2 is driven to rotate, and the driven shaft 3.2 drives the transmission main shaft 2 to rotate, and the transmission main shaft 2 drives the isolating switch to open and close.

[0031] When manual drive is converted to electric drive, the manual turning handle 5.1 is disconnected from the manual locking mechanism 5.2 by pushing the reset mechanism 5.2.1 on the manual locking mechanism 5.2, the driven shaft 3.2 is reconnected with the driving shaft 3.1, the manual locking mechanism 5.2 is disengaged from the triggering micro switch 6.1, the micro switch 6.1 is disconnected, and the detected state of the double-throw clutch mechanism is uploaded; the manual turning handle 5.1 is in a free state, and it is fixed to the bracket on the mounting panel 1.1, the bracket triggers the micro switch 6.2, the micro switch 6.2 is closed, and the detected information that the manual turning handle 5.1 is fixed in place is uploaded, and the electric drive state is converted at this time.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for technicians in this technical field, several changes and improvements can be made without departing from the technical principles of the present invention. These changes and improvements should also be regarded as the protection scope of the present invention.

Claims

1. An electric control mechanism for an isolating switch, characterized in that: It includes a mounting bracket, a transmission main shaft, a double-throw clutch mechanism, an electric mechanism, and a manual mechanism, wherein the double-throw clutch mechanism includes a driving shaft and a driven shaft; The double-throw clutch mechanism, the electric mechanism, and the manual mechanism are all connected or fixed to the mounting bracket; The transmission main shaft is located inside the double throw clutch mechanism; The driven shaft of the double throw clutch mechanism is connected to the transmission main shaft; The driving shaft of the double-throw clutch mechanism is connected to the electric mechanism, and the manual mechanism is connected to the driven shaft; When the driving shaft is connected to the driven shaft, the electric mechanism drives the double-throw clutch mechanism to operate, thereby driving the transmission main shaft to rotate; When the driving shaft is separated from the driven shaft, the manual mechanism drives the driven shaft to rotate, thereby driving the transmission main shaft to rotate.

2. The electric control mechanism of the isolating switch according to claim 1, characterized in that: The manual mechanism includes a manual turning handle and a manual locking mechanism, and the manual locking mechanism includes a reset mechanism, a four-position locking assembly, and a transmission cylinder; the transmission cylinder is fixedly connected to the driven shaft, and the four-position locking assembly is located inside the transmission cylinder; one side of the manual turning handle is located inside the transmission cylinder, and four-position ball bearings are arranged on the manual turning handle located inside the transmission cylinder, and when the manual turning handle is pulled out, the four-position ball bearings enter the four notches of the four-position locking assembly.

3. The electric control mechanism of the isolating switch according to claim 2, characterized in that: The reset mechanism is located outside the transmission cylinder, a limit groove is arranged outside the transmission cylinder, and a limit assembly is arranged on the reset mechanism. When the four-position ball enters the bottom of the groove of the four-position locking assembly, the ball in the limit assembly moves into the limit groove, and the limit assembly performs limit locking.

4. The electric control mechanism of the isolating switch according to claim 2, characterized in that: When the manual turning handle and the manual locking mechanism are in a locked connection state, the reset mechanism is pushed to disconnect the manual turning handle from the manual locking mechanism, and the driving shaft and the driven shaft are restored to be connected.

5. The electric control mechanism of the isolating switch according to claim 1, characterized in that: The electric mechanism comprises a driving mechanism and a gear transmission mechanism, and the gear transmission mechanism is meshedly connected with the gear on the driving shaft.

6. The electric control mechanism of the isolating switch according to claim 1, characterized in that: The transmission main shaft passes through the driving shaft and the driven shaft.

7. The electric control mechanism of the isolating switch according to claim 1, characterized in that: A keyway is arranged on the transmission main shaft, and a key convex is arranged on the driven shaft of the double-throw clutch mechanism. The key convex fits with the keyway, and the key convex can slide in the direction of the keyway. The transmission main shaft and the driven shaft also rotate synchronously through the keyway and the key convex fitting connection.

8. The electric control mechanism of the isolating switch according to claim 1, characterized in that: Two micro switches are arranged on the mounting bracket, which are used to detect the states of the double-throw clutch mechanism and the manual mechanism respectively.

9. The electric control mechanism of the isolating switch according to claim 1, characterized in that: The mounting bracket comprises a mounting panel, a limiting support plate, a driving mechanism bracket, a top plate, a bottom plate and a plurality of fixing columns, and the various components in the mounting bracket are fixedly connected by the plurality of fixing columns.

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