A knife switch operating lever with locking function

Abstract

The utility model relates to the technical field of electric power equipment especially is a kind of knife switch operating lever with locking function, including knife switch main part, the front of knife switch main part is equipped with operating sliding slot, the bottom end of operating sliding slot one side inner wall is equipped with locking clamping hole, the inside of operating sliding slot is penetrated by operating lever body, the inside of operating lever body and one side are provided with the locking assembly for locking operating lever body, the top of operating lever body is fixedly connected with trigger member away from the one end of operating sliding slot, the top of the front of knife switch main part is fixedly connected with switch, the upper portion of switch is provided with prompt light, the locking assembly includes the insulating press bar of the side of operating lever body, the insulating press bar is T type structure, operating lever body adopts hollow structure design, the inside of operating lever body is provided with rotating plate, the reliable locking of operating lever body is realized, to greatly improve the security of equipment overhaul.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to a knife switch operating lever with a locking function. Background Technology

[0002] Knife switch, a common manually operated switching device in power systems, has important applications in the field of electrical equipment control. This type of switch is figuratively called a knife switch because of its structural characteristics. Its name comes from the fact that its operating mechanism is similar to the opening and closing action of a traditional knife. The utility model patent application publication number CN205595257U discloses an intelligent knife switch of an intelligent system. When the knife switch is open, the knife base faces down, and the switch is activated by the touch element, so that the disconnection reminder device is in the reminder state. During the maintenance of electrical equipment, workers often need to operate the knife switch to cut off the circuit. However, the aforementioned knife switch operating lever does not have an interlocking function, which may lead to the knife switch being misoperated during maintenance, thereby causing a safety accident. Utility Model Content

[0003] The purpose of this utility model is to provide a knife switch operating lever with a locking function to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A knife switch operating lever with a locking function includes a knife switch body. An operating groove is provided on the front of the knife switch body. A locking hole is provided at the bottom end of the inner wall of one side of the operating groove. An operating lever body passes through the inner side of the operating groove. A locking component for locking the operating lever body is provided inside and on one side of the operating lever body. An actuating element is fixedly connected to the top end of the operating lever body away from the operating groove. A switch is fixedly connected to the top of the front of the knife switch body. An indicator light is provided above the switch.

[0005] As a preferred embodiment of this utility model, the switch and the indicator light are electrically connected, and one end of the operating lever body extends into the interior of the knife switch body through the operating groove.

[0006] With the above technical solution, after the switch is closed, the operating lever body triggers the switch to light up the indicator light, which can intuitively show that the disconnector is currently in a closed state, avoiding incorrect operation due to misjudgment by the staff, and ensuring that the closing operation is accurate and in place.

[0007] As a preferred embodiment of this utility model, the center of the front of the knife switch body is designed with an arc-shaped protrusion, the operating slide groove is also arc-shaped, and the surface of the operating rod body and the operating slide groove are slidably connected. As a preferred embodiment of this utility model, the locking assembly includes an insulating pressing rod that penetrates one side of the operating rod body. The insulating pressing rod has a T-shaped structure. The operating rod body adopts a hollow structure design, and a rotating plate is provided inside the operating rod body.

[0008] As a preferred embodiment of this utility model, a rotating shaft is provided through the middle of the rotating plate, and the two ends of the rotating shaft are respectively fixedly connected to the inner walls of the two sides of the operating rod body. The outer wall of the rotating shaft is rotatably connected to the inner wall of the rotating plate. One end of the insulating pressing rod extending into the inside of the operating rod body is rotatably connected to one end of the rotating plate through a bearing seat.

[0009] As a preferred embodiment of this utility model, a return spring is fixedly connected to the end of the rotating plate away from the insulating pressing rod, and the end of the return spring away from the rotating plate is fixedly connected to the inner wall of the operating rod body. A locking lever is provided on the side of the rotating plate away from the return spring, one end of the locking lever extends to the outer wall of the operating rod body, and the other end of the locking lever is fixedly connected to a connecting plate. The connecting plate and the rotating plate are movably connected.

[0010] Through the above technical solution, the locking lever, under the pushing action of the rotating plate by the reset spring, can be locked inside the locking hole when the circuit is disconnected, realizing reliable locking of the operating lever body, effectively preventing the knife switch from being accidentally closed during maintenance, thereby greatly improving the safety of equipment maintenance.

[0011] As a preferred embodiment of this utility model, a telescopic spring is sleeved on the outer wall of one end of the locking lever inside the operating lever body, and the end of the locking lever extending to the outside of the operating lever body is connected to the locking hole by a snap-fit ​​connection.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, after the switch is closed, the indicator light is triggered by the touch element of the operating lever body, which can intuitively show that the switch is currently in a closed state, avoid the operator from making incorrect operation due to misjudgment, and ensure that the closing operation is accurate and in place.

[0013] 2. In this utility model, the locking lever, under the pushing action of the rotating plate by the reset spring, can be locked inside the locking hole when the circuit is disconnected, thereby achieving reliable locking of the operating lever body and effectively preventing the knife switch from being accidentally closed during maintenance, thus greatly improving the safety of equipment maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the closing structure of this utility model; Figure 2 This is a schematic diagram of the circuit breaker structure of this utility model; Figure 3 This is a schematic diagram of the main body of the knife switch of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the operating lever body of this utility model; Figure 5 This is an enlarged structural diagram of point A in this utility model.

[0015] In the diagram: 1. Knife switch body; 2. Operating slide; 3. Locking hole; 4. Operating rod body; 5. Locking assembly; 6. Actuating element; 7. Switch; 8. Indicator light; 501. Insulating pressing rod; 502. Rotating plate; 503. Rotating shaft; 504. Return spring; 505. Locking rod; 506. Connecting plate; 507. Telescopic spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0018] For examples, please refer to Figures 1-5 This utility model provides a technical solution: A knife switch operating lever with locking function includes a knife switch body 1. An operating groove 2 is provided on the front of the knife switch body 1. A locking hole 3 is provided at the bottom of the inner wall of one side of the operating groove 2. An operating lever body 4 passes through the inner side of the operating groove 2. A locking component 5 for locking the operating lever body 4 is provided inside and on one side of the operating lever body 4. A trigger 6 is fixedly connected to the top end of the operating lever body 4 away from the operating groove 2. A switch 7 is fixedly connected to the top of the front of the knife switch body 1. An indicator light 8 is provided above the switch 7. The switch 7 and the indicator light 8 are electrically connected. One end of the operating lever body 4 extends into the interior of the knife switch body 1 through the operating slide 2. The center of the front of the knife switch body 1 adopts an arc-shaped protrusion design. The operating slide 2 is also arc-shaped. The surface of the operating lever body 4 and the operating slide 2 are slidably connected. The locking assembly 5 includes an insulating push rod 501 that penetrates one side of the operating rod body 4. The insulating push rod 501 has a T-shaped structure. The operating rod body 4 adopts a hollow structure design. A rotating plate 502 is provided inside the operating rod body 4. A rotating shaft 503 is provided in the middle of the rotating plate 502. The two ends of the rotating shaft 503 are fixedly connected to the inner walls of the two sides of the operating rod body 4, respectively. The outer wall of the rotating shaft 503 is rotatably connected to the inner wall of the rotating plate 502. One end of the insulating push rod 501 extending into the operating rod body 4 is rotatably connected to one end of the rotating plate 502 through a shaft seat. A return spring 504 is fixedly connected to one end of the rotating plate 502 away from the insulating pressing rod 501. The end of the return spring 504 away from the rotating plate 502 is fixedly connected to the inner wall of the operating rod body 4. A locking rod 505 is provided on the side of the rotating plate 502 away from the return spring 504. One end of the locking rod 505 extends to the outer wall of the operating rod body 4. The other end of the locking rod 505 is fixedly connected to a connecting plate 506. The connecting plate 506 and the rotating plate 502 are movably connected. A telescopic spring 507 is sleeved on the outer wall of the end of the locking rod 505 located inside the operating rod body 4. The end of the locking rod 505 extending to the outside of the operating rod body 4 is engaged with the locking hole 3.

[0019] When the operating lever body 4 completes the closing action, the trigger 6 will trigger the switch 7. Since the switch 7 and the indicator light 8 are electrically connected, the indicator light 8 will light up after the switch 7 is triggered, which will intuitively show that the knife switch is currently in the closed state, avoid the staff from making incorrect operations due to misjudgment, and ensure that the closing operation is accurate and in place. In this embodiment, when the operating lever body 4 is in the off state, the locking lever 505, under the pushing action of the reset spring 504, is engaged inside the locking hole 3 by the force of the rotating plate 502, thereby achieving reliable locking of the operating lever body 4, effectively preventing the knife switch from being closed due to misoperation during maintenance, and greatly improving the safety of equipment maintenance and use.

[0020] The working process of this utility model is as follows: When in use, with the operating lever body 4 in the off state, the locking lever 505, under the pushing action of the return spring 504 and the rotating plate 502, is locked inside the locking hole 3, which can reliably lock the operating lever body 4 and prevent the switch from being accidentally closed during maintenance, greatly improving the safety of equipment maintenance and use. When a closing operation is required, the operator first presses the insulating pressing lever 501. The insulating pressing lever 501 moves into the operating lever body 4, causing the rotating plate 502 to rotate around the rotating shaft 503. During the rotation of the rotating plate 502, the return spring 505 is compressed. 04. Simultaneously, the locking lever 505 moves into the operating lever body 4 under the action of the telescopic spring 507, causing the locking lever 505 to separate from the locking hole 3 and releasing the locking of the operating lever body 4. At this time, the operator can push the operating lever body 4 to slide in the operating slide groove 2, so that the operating lever body 4 completes the closing action. At the same time, the trigger 6 will trigger the switch 7. Since the switch 7 and the indicator light 8 are electrically connected, the indicator light 8 will light up after the switch 7 is triggered, which will intuitively show that the knife switch is currently in the closed state, avoiding the operator from making incorrect operations due to misjudgment, and ensuring that the closing operation is accurate and in place.

[0021] The knife switch body 1, switch 7 and indicator light 8 used in this utility model are all existing known electrical devices, and can all be purchased and used directly on the market. Their structure, circuit and control principle are all existing known technologies. Therefore, the structure, circuit and control principle of the knife switch body 1, switch 7 and indicator light 8 will not be described in detail here.

[0022] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A knife switch operating lever with locking function, comprising a knife switch body (1), characterized in that: The front of the knife switch body (1) is provided with an operating slide groove (2), and a locking hole (3) is provided at the bottom of the inner wall of one side of the operating slide groove (2). An operating rod body (4) passes through the inner side of the operating slide groove (2). A locking component (5) for locking the operating rod body (4) is provided inside the operating rod body (4) and on one side. A trigger (6) is fixedly connected to the top of the operating rod body (4) away from the operating slide groove (2). A switch (7) is fixedly connected to the top of the front of the knife switch body (1). An indicator light (8) is provided above the switch (7).

2. The knife switch operating lever with locking function according to claim 1, characterized in that: The switch (7) and the indicator light (8) are electrically connected, and one end of the operating lever body (4) extends into the interior of the knife switch body (1) through the operating slide (2).

3. A knife switch operating lever with locking function according to claim 1, characterized in that: The main body (1) of the knife switch has an arc-shaped protrusion in the middle of its front side. The operating slide (2) is also arc-shaped. The surface of the operating rod body (4) is slidably connected to the operating slide (2).

4. A knife switch operating lever with locking function according to claim 1, characterized in that: The locking assembly (5) includes an insulating pressing rod (501) that passes through one side of the operating rod body (4). The insulating pressing rod (501) has a T-shaped structure. The operating rod body (4) adopts a hollow structure design. A rotating plate (502) is provided inside the operating rod body (4).

5. A knife switch operating lever with locking function according to claim 4, characterized in that: A rotating shaft (503) is provided in the middle of the rotating plate (502). The two ends of the rotating shaft (503) are fixedly connected to the inner walls of the two sides of the operating rod body (4). The outer wall of the rotating shaft (503) is rotatably connected to the inner wall of the rotating plate (502). One end of the insulating pressing rod (501) extending into the inside of the operating rod body (4) is rotatably connected to one end of the rotating plate (502) through a shaft seat.

6. A knife switch operating lever with locking function according to claim 5, characterized in that: A return spring (504) is fixedly connected to one end of the rotating plate (502) away from the insulating pressing rod (501). The end of the return spring (504) away from the rotating plate (502) is fixedly connected to the inner wall of the operating rod body (4). A locking lever (505) is provided on one side of the rotating plate (502) away from the return spring (504). One end of the locking lever (505) extends to the outer wall of the operating rod body (4). The other end of the locking lever (505) is fixedly connected to a connecting plate (506). The connecting plate (506) and the rotating plate (502) are movably connected.

7. A knife switch operating lever with locking function according to claim 6, characterized in that: The locking lever (505) is fitted with a telescopic spring (507) on the outer wall of one end inside the operating lever body (4). The end of the locking lever (505) extending to the outside of the operating lever body (4) is connected to the locking hole (3) by a snap-fit ​​connection.

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