High-hardness isolating knife seat for vacuum circuit breaker

Abstract

The utility model discloses an isolating knife seat for high-hardness vacuum circuit breaker relates to isolating knife seat technical field, include: base, as the support basis of whole isolating knife seat, knife seat board, its installation base's surface, with the cooperation of the isolator, support, its installation base's surface, and the inboard of support passes through the pivot and is installed with the limiting portion, the inboard structure of limiting portion has the limiting cavity, and the inboard of limiting cavity is installed with the movable setting limiting component, and limiting component includes: screw rod, threaded sleeve, connecting rod and clamping portion, and screw rod rotatory connection is in the inboard of limiting portion, and threaded sleeve installs on the surface of screw rod, the utility model discloses a limiting portion through the surface connection of knife seat, when the isolator is connected with the isolating knife seat, personnel can overturn limiting portion, so that limiting portion can rotate through the pivot, thereby under the effect of limiting portion can limit the end of isolator, to avoid the isolator easily and isolating knife seat to separate, improve the connection strength of isolator and isolating knife seat.

Description

Technical Field

[0001] This utility model relates to the field of isolating knife holder technology, and in particular to isolating knife holder for high-hardness vacuum circuit breakers. Background Technology

[0002] A vacuum circuit breaker is a type of electrical equipment mainly used for circuit protection and control, playing a particularly important role in industrial and mining enterprises, power plants, and substations. The internal structure of a vacuum circuit breaker includes a vacuum chamber, which is used for arc extinguishing, that is, quickly extinguishing the electric arc when the circuit is broken. Its working principle is that when the moving and stationary contacts are opened under the action of the operating mechanism, an electric arc is generated between the contacts, and the contact surface evaporates vapor at high temperature. The isolating knife holder is one of the accessories of outdoor vacuum circuit breakers.

[0003] Referring to existing patent publication number CN222281850U, an outdoor high-voltage vacuum circuit breaker isolating knife holder includes: a left knife holder plate, a slot formed inside the right side of the left knife holder plate, a wiring plate, and a clamping mechanism below the wiring plate, wherein the clamping mechanism includes a support rod, a spring, a clamping plate, and a rubber pad. This outdoor high-voltage vacuum circuit breaker isolating knife holder, by incorporating a convenient power connection mechanism, not only changes the power connection part to a bent shape but also allows the power connection part to rotate at multiple angles, increasing the flexibility of power connection.

[0004] However, in actual use, existing isolating knife holders suffer from a lack of protection in the connection between the switch and the isolating knife holder due to the opening and closing operations of the vacuum circuit breaker. The connection between the switch and the isolating knife holder is prone to loosening and has low strength. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-hardness vacuum circuit breaker isolating knife holder. This invention features a limiting part connected to the surface of the knife holder. When the knife switch is connected to the isolating knife holder, personnel can rotate the limiting part via a pivot, thereby restricting the end of the knife switch and preventing it from easily detaching from the isolating knife holder, thus improving the connection strength between the knife switch and the isolating knife holder.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Isolating knife holders for high-hardness vacuum circuit breakers, including:

[0008] The base serves as the supporting foundation for the entire isolation tool holder;

[0009] A knife holder plate is mounted on the surface of the base and mates with the knife gate;

[0010] A bracket is mounted on the surface of the base, and a limiting part is mounted on the inner side of the bracket via a pivot.

[0011] The inner side of the limiting part has a limiting cavity, and a movably mounted limiting component is installed inside the limiting cavity.

[0012] The present invention is further configured such that the limiting component includes: a screw, a threaded sleeve, a connecting rod, and a clamping part;

[0013] The screw is rotatably connected to the inside of the limiting part, the threaded sleeve is installed on the surface of the screw, and the clamping part is connected to the surface of the threaded sleeve through a connecting rod.

[0014] The present invention is further configured such that the threaded sleeve and the limiting cavity of the limiting part are fitted together.

[0015] The present invention is further configured such that an operating part located below the threaded sleeve is mounted on the surface of the screw.

[0016] The present invention is further configured such that the limiting part is rotatably connected to the bracket via a rotating shaft.

[0017] The present invention is further configured such that the limiting part and the tool holder plate are located on the same plane.

[0018] The present invention is further configured such that the limiting part and the tool holder plate are at the same horizontal height.

[0019] The present invention is further provided that mounting holes are provided on all four sides of the surface of the base.

[0020] The beneficial effects of this utility model are as follows: By connecting a limiting part to the surface of the knife holder, when the knife is connected to the isolating knife holder, the operator can rotate the limiting part by flipping it, so that the limiting part can be rotated by the rotating shaft. Under the action of the limiting part, the end of the knife can be limited, so as to prevent the knife from easily separating from the isolating knife holder and improve the connection strength between the knife and the isolating knife holder.

[0021] 1. The high-hardness vacuum circuit breaker isolating knife holder is equipped with a bracket, a rotating shaft, and a limiting part. The limiting part is connected to the surface of the knife holder, so that when the knife is connected to the isolating knife holder, the operator can rotate the limiting part by flipping it, so that the limiting part can be rotated by the rotating shaft. Under the action of the limiting part, the end of the knife can be limited to prevent the knife from easily detaching from the isolating knife holder, thereby improving the connection strength between the knife and the isolating knife holder.

[0022] 2. The isolating knife holder for the high-hardness vacuum circuit breaker is equipped with a limiting component. When the knife switch in the vacuum circuit breaker is connected to the isolating knife holder, as the limiting part restricts the knife switch, the operator can also drive the screw to rotate through the operating part, so that the threaded sleeve on the surface of the screw can make linear movement. At this time, the clamping part connected to the threaded sleeve through the connecting rod can further stabilize the knife switch and the limiting part, and can also prevent the limiting part from moving easily. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the isolating knife holder for the high-hardness vacuum circuit breaker proposed in this utility model.

[0024] Figure 2 This is a front cross-sectional view of the isolating knife holder for the high-hardness vacuum circuit breaker proposed in this utility model.

[0025] Figure 3 This is a side sectional view of the isolating knife holder for the high-hardness vacuum circuit breaker proposed in this utility model.

[0026] Figure 4 This is a schematic diagram of the defined component structure of the isolating knife holder for the high-hardness vacuum circuit breaker proposed in this utility model.

[0027] In the diagram: 1. Base; 2. Mounting hole; 3. Tool holder plate; 4. Bracket; 5. Rotating shaft; 6. Limiting part; 7. Clamping part; 8. Screw; 9. Threaded sleeve; 10. Connecting rod; 11. Operating part. Detailed Implementation

[0028] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0029] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0030] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent 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 patent.

[0031] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0032] Reference Figures 1 to 4 A high-hardness vacuum circuit breaker isolating knife holder includes: a base 1, serving as the supporting foundation for the entire isolating knife holder; a knife holder plate 3, mounted on the surface of the base 1, cooperating with the knife switch to achieve reliable circuit isolation and connection; a bracket 4, mounted on the surface of the base 1, with a limiting part 6 mounted on the inner side of the bracket 4 via a rotating shaft 5, allowing the limiting part 6 to rotate via the rotating shaft 5, thereby limiting the knife switch connected to the isolating knife holder under the movable limiting part 6 to prevent the connection from easily loosening; the inner side of the limiting part 6 has a limiting cavity, and a movable limiting component is mounted inside the limiting cavity, which further stabilizes the components connected to the limiting part 6 under the action of the limiting component.

[0033] Specifically, refer to Figures 1 to 4 The limiting components include: a screw 8, a threaded sleeve 9, a connecting rod 10, and a clamping part 7; the screw 8 is rotatably connected to the inside of the limiting part 6, the threaded sleeve 9 is mounted on the surface of the screw 8, and the clamping part 7 is connected to the surface of the threaded sleeve 9 through the connecting rod 10. Furthermore, an operating part 11 located below the threaded sleeve 9 is mounted on the surface of the screw 8. With this design, the screw 8 can be rotated by the operating part 11, so that the threaded sleeve 9 on the surface of the screw 8 can make linear motion. At this time, the threaded sleeve 9 will drive the clamping part 7 to move together through the connecting rod 10, thereby stabilizing the component connected to the limiting part 6 under the action of the clamping part 7.

[0034] Furthermore, the threaded sleeve 9 is fitted into the limiting cavity of the limiting part 6. This design allows the threaded sleeve 9 on the surface of the screw 8 to move together during rotation. Since the threaded sleeve 9 can fit into the limiting part 6, the threaded sleeve 9 can move in a stable linear motion, preventing the threaded sleeve 9 from rotating together with the screw 8.

[0035] Furthermore, the limiting part 6 is rotatably connected to the bracket 4 via the rotating shaft 5. With this design, the limiting part 6 can be rotated via the rotating shaft 5 by flipping it, thereby limiting the end of the switch knife under the action of the limiting part 6 and improving the connection strength.

[0036] Furthermore, the limiting part 6 and the tool holder plate 3 are located on the same plane and at the same horizontal height. This design facilitates the cooperation between the limiting part 6 and the tool holder plate 3, enabling the limiting part 6 to accurately align with the components connected to the tool holder plate 3.

[0037] Furthermore, mounting holes 2 are provided around the surface of the base 1, allowing the base 1 to be fixed to the mounting surface using multiple bolts or screws.

[0038] Working principle: When using this utility model, the isolating knife holder is first connected and installed through the mounting hole 2. A limiting part 6 is connected to the surface of the knife holder. When the knife is connected to the isolating knife holder, the operator can rotate the limiting part 6 by flipping it, so that the limiting part 6 can rotate through the rotating shaft 5. Under the action of the limiting part 6, the end of the knife can be limited to prevent the knife from easily separating from the isolating knife holder, thereby improving the connection strength between the knife and the isolating knife holder. As the limiting part 6 limits the knife, the operator can also drive the screw 8 to rotate through the operating part 11, so that the threaded sleeve 9 on the surface of the screw 8 can move linearly. At this time, the clamping part 7 connected to the threaded sleeve 9 through the connecting rod 10 can further stabilize the knife and the limiting part 6, so as to abut against the limiting part 6 and also prevent the limiting part 6 from moving easily.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-hardness vacuum circuit breaker isolation knife holder, characterized in that, include: The base (1) serves as the supporting foundation for the entire isolation tool holder; A knife holder plate (3) is mounted on the surface of the base (1) and cooperates with the knife gate; A bracket (4) is mounted on the surface of the base (1), and a limiting part (6) is mounted on the inner side of the bracket (4) via a pivot (5); The inner side of the limiting part (6) has a limiting cavity, and a limiting component that can be movably installed is mounted inside the limiting cavity.

2. The isolating knife holder for a high-hardness vacuum circuit breaker according to claim 1, characterized in that, The limiting components include: a screw (8), a threaded sleeve (9), a connecting rod (10), and a clamping part (7); The screw (8) is rotatably connected to the inside of the limiting part (6), the threaded sleeve (9) is installed on the surface of the screw (8), and the clamping part (7) is connected to the surface of the threaded sleeve (9) through the connecting rod (10).

3. The isolating knife holder for a high-hardness vacuum circuit breaker according to claim 2, characterized in that, The threaded sleeve (9) is fitted into the limiting cavity of the limiting part (6).

4. The isolating knife holder for a high-hardness vacuum circuit breaker according to claim 2, characterized in that, The screw (8) has an operating part (11) mounted on its surface, located below the threaded sleeve (9).

5. The isolating knife holder for a high-hardness vacuum circuit breaker according to claim 1, characterized in that, The limiting part (6) is rotatably connected to the bracket (4) via a rotating shaft (5).

6. The isolating knife holder for a high-hardness vacuum circuit breaker according to claim 1, characterized in that, The limiting part (6) and the tool holder plate (3) are located on the same plane.

7. The isolating knife holder for a high-hardness vacuum circuit breaker according to claim 1, characterized in that, The limiting part (6) and the tool holder plate (3) are at the same horizontal height.

8. The isolating knife holder for a high-hardness vacuum circuit breaker according to claim 1, characterized in that, Mounting holes (2) are provided around the surface of the base (1).

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