Disconnecting switch opening and closing mechanism

Abstract

The utility model relates to an isolating switch opening and closing mechanism, and belongs to the technical field of low-voltage electric appliances. According to the utility model, the neutral shaft and the rotating shaft are used as a basic framework, the handle shaft and the rotating shaft are in driving connection and carry the torsion spring, the deflector rod and the like to rotate, so that the deflector rod can be driven to rotate the torsion spring through first-stage transmission only by rotating the handle shaft, thereby quickly realizing opening and closing, and a large number of tedious transmission structures and parts are saved; the whole structure is compact, the assembly is easy, the manual operation of a user is facilitated, the opening and closing effects are rapidly achieved, and the cost of the isolation switch can be reduced.

Description

Technical Field

[0001] This utility model relates to a disconnecting switch opening and closing mechanism, belonging to the field of low-voltage electrical technology. Background Technology

[0002] A disconnecting switch is a device used in power systems to disconnect or connect circuits. Its main function is to ensure the safe isolation of circuits during maintenance or repair. The closing mechanism is an important component of the disconnecting switch, responsible for controlling the closing and opening operations of the switch.

[0003] Currently, the most commonly used mechanism is the manual closing mechanism, which achieves the closing and opening of the switch through manual operation. However, the current manual closing mechanism has a relatively cumbersome structure, which is not only time-consuming and labor-intensive to assemble, but also occupies a large space and is limited in applicable working conditions. Its complex transmission mechanism also brings many inconveniences to users in actual use.

[0004] Therefore, there is an urgent need to find a compact mechanism that can quickly open and close the circuit breaker, which can save assembly time and make it easier for users to use. Utility Model Content

[0005] To solve the above problems, this utility model provides a disconnecting switch opening and closing mechanism, comprising:

[0006] A center axis, the top of which is connected to a top axis;

[0007] A rotating shaft, one end of which passes through a through hole on the side of the central shaft, and the other end of which is connected to a lever;

[0008] A handle shaft is mounted on the top shaft, and the handle shaft is also connected to the rotating shaft via a transmission assembly, allowing the rotating shaft to rotate synchronously when the handle shaft is rotated.

[0009] The U-shaped frame is located on one side of the central axis;

[0010] A torsion spring, one end of which is fixed to the U-shaped frame, and the other end of which is connected to the lever.

[0011] Furthermore, a paddle is installed on the rotating shaft at a position between the lever and the center shaft, and the paddle is sleeved in the irregular hole of the lever.

[0012] Furthermore, the paddle has a square hole, and the rotating shaft has a square shaft platform at the position between the paddle lever and the center shaft, and the square shaft platform is installed and engaged with the square hole of the paddle.

[0013] Furthermore, the transmission assembly includes a first bevel gear disposed at the lower part of the handle shaft, and a second bevel gear mounted on the rotating shaft and located between the square shaft platform and the center shaft, wherein the first bevel gear and the second bevel gear mesh in a mutually perpendicular configuration.

[0014] Furthermore, a positioning shaft is installed on the portion of the rotating shaft that extends beyond the center shaft.

[0015] Furthermore, a retaining ring is provided at the abutment connection between the positioning shaft and the center shaft.

[0016] Furthermore, the torsion spring includes a helical portion and a long arm and a short arm connecting the two ends of the helical portion.

[0017] Furthermore, the U-shaped frame has two through holes on both sides, which are positioned opposite each other, and the long arm is fixed through and fixed in the two through holes.

[0018] Furthermore, the short arm is fixed inside the bottom hole of the lever.

[0019] Furthermore, the top of the handle shaft has a hand-held portion.

[0020] The beneficial effects of this utility model are:

[0021] This utility model uses a center shaft and a rotating shaft as the basic framework, and establishes a drive connection between the handle shaft and the rotating shaft to carry the rotation of the torsion spring, lever, etc. It realizes that only by rotating the handle shaft, the lever can be driven to rotate the torsion spring through a single-stage transmission, thereby quickly realizing the opening and closing of the circuit breaker. It eliminates a lot of complicated transmission structures and parts. The overall structure is compact and easy to assemble. It not only facilitates manual operation by users and quickly achieves the effect of opening and closing the circuit breaker, but also reduces the cost of the disconnecting switch. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure after assembly in one embodiment of this utility model.

[0023] Figure 2 This is an exploded view of the overall structure in one embodiment of this utility model.

[0024] In the diagram, 1 is the handle shaft; 2 is the first bevel gear; 3 is the U-shaped frame; 4 is the torsion spring; 5 is the positioning shaft; 6 is the snap ring; 7 is the center shaft; 8 is the rotating shaft; 9 is the paddle; and 10 is the lever. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two distinct positions. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1

[0029] like Figures 1-2 As shown, this utility model provides a disconnecting switch opening and closing mechanism, comprising:

[0030] The middle shaft 7 is connected to a top shaft at its top;

[0031] A rotating shaft 8 has one end extending through a through hole on the side of the neutral shaft 7 and the other end connected to a lever 10. A lever 9 is installed on the rotating shaft 8 between the lever and the neutral shaft 7. The lever 9 is fitted into the irregular hole of the lever 10. The lever 9 can serve as an indicator to facilitate correct installation of the bevel gear and prevent the bevel gear from dislodging during operation, thus facilitating smoother operation of the lever 10. The lever 9 has a square hole, and the rotating shaft 8 has a square shaft platform between the lever and the neutral shaft 7. The square shaft platform is fitted with the square hole of the lever 9. The square hole fits more easily and securely, preventing loosening, and also facilitates better engagement and opening / closing with the irregular hole of the lever 10.

[0032] The handle shaft 1 is mounted on the top shaft. The handle shaft 1 is also connected to the rotating shaft 8 through a transmission assembly, allowing the rotating shaft 8 to rotate synchronously when the handle shaft 1 is rotated. The transmission assembly includes a first bevel gear 2 disposed at the lower part of the handle shaft 1 and a second bevel gear mounted on the rotating shaft 8 and located between the square shaft platform and the center shaft 7. The first bevel gear 2 and the second bevel gear mesh with each other in a mutually perpendicular configuration.

[0033] U-shaped frame 3 is located on one side of the central axis 7;

[0034] A torsion spring 4 is fixed at one end to the U-shaped frame 3 and at the other end to the lever 10. The torsion spring 4 includes a helical part and long and short arms connecting the two ends of the helical part. The long and short arms can be bent and rest against the sides of the helical part. Two through holes are provided on both sides of the U-shaped frame 3, and the long arm passes through and is fixed in the two through holes. The short arm is fixed in the bottom hole of the lever.

[0035] Furthermore, a positioning shaft 5 is installed on the portion of the rotating shaft 8 that extends beyond the center shaft 7. A retaining spring 6 is provided at the abutment connection between the positioning shaft 5 and the center shaft 7. The function of the positioning shaft 5 is to fix the assembly position of the rotating shaft.

[0036] Furthermore, the top of the handle shaft 1 has a hand grip for easy manual holding by the user.

[0037] When the handle shaft 1 is turned, the first bevel gear 2 drives the second bevel gear to rotate, which in turn drives the rotating shaft 8 to rotate the lever 10. The lever 10 can then drive the torsion spring 4 to rotate to achieve the opening and closing of the circuit breaker. When the long arm of the torsion spring 4 rotates to the lower end of the two through holes of the U-shaped frame 3 in conjunction with the bottom hole of the lever 10, the circuit breaker is open. When the long arm of the torsion spring 4 rotates to the upper end of the two through holes of the U-shaped frame 3 in conjunction with the bottom hole of the lever 10, the circuit breaker is closed.

[0038] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A disconnecting switch opening and closing mechanism characterized by comprising: The utility model relates to a kind of handle, including: Median axis, top axis is connected with top axis on top; Rotary shaft, one end of the rotary shaft passes through the through-hole of the side of the median axis, and the other end is connected with the lever; Handle shaft, installed in the top axis, the handle shaft is also connected the rotary shaft by transmission assembly, allow to rotate handle shaft when drive the rotary shaft synchronous rotation; U-shaped frame, located in one side of the median axis; Torsional spring, one end is fixed in the U-shaped frame, the other end is connected with the lever.

2. The isolating switch opening and closing mechanism according to claim 1, characterized in that, The position of the rotary shaft between the lever and the median axis is installed with the push piece, the push piece is set in the special-shaped hole of the lever.

3. The isolating switch opening and closing mechanism according to claim 2, characterized in that, The push piece has square hole, the rotary shaft is provided with square shaft base between the lever and the median axis, and the square shaft base is installed with the square hole of push piece.

4. The isolating switch opening and closing mechanism according to claim 3, characterized in that, Transmission assembly includes first bevel gear arranged in the lower part of handle shaft, and second bevel gear installed in rotary shaft and located between square shaft base and median axis, and the first bevel gear and the second bevel gear are engaged transmission in the form of each other vertical.

5. The isolating switch opening and closing mechanism according to claim 1, characterized in that, The part of the rotary shaft passing through the median axis is installed with positioning shaft.

6. The isolating switch opening and closing mechanism according to claim 5, characterized in that, The abutment connection of the positioning shaft and the median axis is provided with snap spring.

7. The isolating switch opening and closing mechanism according to claim 1, characterized in that, The torsional spring includes spiral part and long arm and short arm connected to both ends of spiral part.

8. The isolating switch opening and closing mechanism according to claim 7, characterized in that, Two through holes are provided on both sides of the U-shaped frame, and the long arm is fixed in the two through holes.

9. The isolating switch opening and closing mechanism according to claim 8, characterized in that, The short arm is fixed in the bottom hole of the lever.

10. The isolating switch opening and closing mechanism according to claim 1, characterized in that, The top of the handle shaft has hand part.

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