Interlock-protected ground engaging tool operating mechanism

Abstract

This utility model discloses a multi-interlocking protection grounding switch operating mechanism, including a grounding switch operating rod and a circuit breaker operating rod. Multiple brake pads are fixedly installed on the grounding switch operating rod, and a positioning mechanism is provided on one side of each brake pad. A multi-interlocking mechanism is provided between the grounding switch operating rod and the circuit breaker operating rod. The multi-interlocking mechanism includes a guide frame, and a movable rod is slidably connected inside the guide frame. A limit block is fixedly connected to the movable rod. This belongs to the field of grounding switch technology. This multi-interlocking protection grounding switch operating mechanism, by rotating the circuit breaker operating rod, pushes the locking rod at the other end of the movable rod into the slot of the locking seat on the grounding switch operating rod, locking the grounding switch operating rod. Simultaneously, the movement of the movable rod drives the push rod to move, which in turn pushes the rotating rod to rotate around the pivot, lifting the stop block and blocking the end of the grounding switch operating rod, forming two interlocking protections, effectively improving the safety of use.

Description

Technical Field

[0001] This utility model relates to the field of grounding knife technology, specifically to a grounding knife operating mechanism with multi-interlock protection. Background Technology

[0002] A grounding switch, also known as a grounding circuit breaker, is a safety interlocking mechanism installed in high-voltage switchgear to replace a grounding wire. According to the five-prevention requirements, the grounding switch can only close when equipment is under maintenance or when the circuit breaker and disconnector are open, essentially functioning as a grounding wire. During normal operation, the grounding switch must be open. However, in existing technology, the interlocking protection effect of the interlocking mechanism between the grounding switch operating rod and the circuit breaker operating rod is limited, resulting in insufficient safety during use. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a multi-interlock protection grounding switch operating mechanism, which solves the problem that the interlock protection effect of the interlocking mechanism between the grounding switch and the circuit breaker is singular, resulting in insufficient safety during use.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a multi-interlock protection grounding switch operating mechanism, including a grounding switch operating rod and a circuit breaker operating rod, wherein multiple brake pads are fixedly installed on the grounding switch operating rod, a positioning mechanism is provided on one side of each brake pad, and a multi-interlock mechanism is provided between the grounding switch operating rod and the circuit breaker operating rod; The multi-interlocking mechanism includes a guide frame, a movable rod slidably connected inside the guide frame, a limit block fixedly connected to the movable rod, a first spring on both sides of the limit block, a fixed frame fixedly connected to both ends of the movable rod, a locking rod fixedly connected to the fixed frame, a push rod fixedly connected to the end of the movable rod, multiple elastic protrusions, a locking seat, and a push block with an inclined surface fixedly connected to both the grounding switch operating rod and the circuit breaker operating rod, a locking slot provided on the locking seat, an elastic stop fixedly connected inside the locking slot, a rotating rod provided on one side of the grounding switch operating rod, a rotating shaft fixedly connected to the rotating rod, and a stop fixedly connected to the end of the rotating rod.

[0005] Preferably, the guide frame is disposed inside the high-voltage cabinet, and the guide frame is fixedly installed inside the high-voltage cabinet by bolts, so that the guide frame can be easily installed inside the high-voltage cabinet.

[0006] Preferably, both ends of the movable rod are connected through the guide frame, and the movable rod is slidably connected to the inner wall of the guide frame through a limiting block, so that the limiting block can guide and limit the movement of the movable rod.

[0007] Preferably, one end of the first spring abuts against the limiting block, and the other end of the first spring abuts against the inner wall of the guide frame, so that the limiting block can be reset by using the first spring.

[0008] Preferably, the card slot is inclinedly disposed on the card holder, and one end of the card slot has an opening, so that the card rod can enter the card slot along the opening to lock the card holder.

[0009] Preferably, the rotating rod is rotatably connected to the inner wall of the high-voltage cabinet via a rotating shaft, and the cross-sectional area of ​​the stop block is larger than the cross-sectional area of ​​the grounding switch operating rod, so that the stop block can completely block the grounding switch operating rod, forming the first line of protection, and the grounding switch operating rod cannot be rotated when the circuit breaker is in the working position.

[0010] Preferably, the positioning mechanism includes a support frame, a movable seat is fixedly and rotatably connected to the support frame, an extension rod is fixedly connected to the brake plate, and a second spring is installed between the extension rod and the movable seat, so as to position the opening and closing position of the brake plate.

[0011] This utility model provides a multi-interlock protection grounding switch operating mechanism. Compared with the prior art, it has the following advantages: 1. The multi-interlock protection grounding switch operating mechanism, by rotating the circuit breaker operating lever, pushes the locking rod at the other end of the movable lever into the slot of the grounding switch operating lever, locking the grounding switch operating lever. At the same time, the movable lever moves, driving the push rod to move, which in turn drives the rotating rod to rotate around the pivot, lifting the stop block and blocking the end of the grounding switch operating lever, forming two interlock protections, effectively improving the safety of use.

[0012] 2. The grounding switch operating mechanism of this multi-interlock protection, by rotating the grounding switch operating rod, drives the brake plate to rotate, and the brake plate to rotate the extension rod. The extension rod first compresses the second spring. After the extension rod is completely rotated out of the support frame, the second spring deflects, and the pressure applied to the extension rod is converted into thrust, which pushes the brake plate to close, so as to play a positioning role for the opening and closing position of the brake plate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the multi-locking mechanism of this utility model.

[0015] Figure 3 This is a schematic diagram of the movable rod structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the positioning mechanism of this utility model.

[0017] In the diagram: 1. Grounding switch operating lever; 2. Multi-locking mechanism; 201. Guide frame; 202. Movable rod; 203. Limit block; 204. First spring; 205. Fixed frame; 206. Locking rod; 207. Locking seat; 208. Locking groove; 209. Elastic stop block; 210. Push block; 211. Elastic protrusion; 212. Push rod; 213. Rotating rod; 214. Stop block; 215. Rotating shaft; 3. Circuit breaker operating lever; 4. Positioning mechanism; 401. Support frame; 402. Extension rod; 403. Movable seat; 404. Second spring; 5. Brake pad. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a multi-interlock protection grounding switch operating mechanism, including a grounding switch operating rod 1 and a circuit breaker operating rod 3. Multiple brake pads 5 are fixedly installed on the grounding switch operating rod 1. A positioning mechanism 4 is provided on one side of each brake pad 5. A multi-interlock mechanism 2 is provided between the grounding switch operating rod 1 and the circuit breaker operating rod 3. The multi-interlock mechanism 2 can provide multi-interlock protection for the grounding switch operating rod 1 and the circuit breaker operating rod 3, effectively improving the safety of use.

[0020] The multi-locking mechanism 2 includes a guide frame 201, which is installed inside the high-voltage cabinet and fixedly mounted inside the cabinet with bolts, facilitating easy installation. A movable rod 202 is slidably connected inside the guide frame 201, and a limit block 203 is fixedly connected to the movable rod 202. Both ends of the movable rod 202 penetrate the guide frame 201, and the movable rod 202 is slidably connected to the inner wall of the guide frame 201 via the limit block 203. This allows the limit block 203 to guide and limit the movement of the movable rod 202. A first spring is provided on both sides of the limit block 203. 204. One end of the first spring 204 abuts against the limiting block 203, and the other end of the first spring 204 abuts against the inner wall of the guide frame 201, so that the limiting block 203 can be reset by the first spring 204. Both ends of the movable rod 202 are fixedly connected to the fixing frame 205, and the fixing frame 205 is fixedly connected to the locking rod 206. The end of the movable rod 202 is fixedly connected to the push rod 212. Multiple elastic protrusions 211, locking seats 207 and push blocks 210 with inclined surfaces are fixedly connected to the grounding switch operating rod 1 and the circuit breaker operating rod 3. The elastic protrusions 211 can be locked into the corresponding grooves on the inner wall of the high-voltage cabinet, which can facilitate the operation of the circuit breaker. The grounding switch operating lever 1 and the circuit breaker operating lever 3 provide a certain degree of fixation. The push block 210 on the grounding switch operating lever 1 moves the movable lever 202 by pushing it through the inclined plane. The push block 210 on the circuit breaker operating lever 3 moves the locking lever 206 by pushing it through the inclined plane, thereby moving the movable lever 202. A locking groove 208 is provided on the locking seat 207. The locking groove 208 is inclinedly set on the locking seat 207, and one end of the locking groove 208 has an opening, so that the locking lever 206 can enter the locking groove 208 along the opening and lock the locking seat 207. An elastic stop 209 is fixedly connected inside the locking groove 208. The elastic stop 209 can... The lever 206 serves a certain limiting function. A rotating rod 213 is provided on one side of the grounding switch operating lever 1. A rotating shaft 215 is fixedly connected to the rotating rod 213. A stop block 214 is fixedly connected to the end of the rotating rod 213. An elastic element, such as a spring, can be provided on the top of the stop block 214 to facilitate the reset of the stop block 214 and facilitate the opening of the stop block 214. The rotating rod 213 is rotatably connected to the inner wall of the high-voltage cabinet through the rotating shaft 215. The cross-sectional area of ​​the stop block 214 is larger than the cross-sectional area of ​​the grounding switch operating lever 1, so that the stop block 214 can completely block the grounding switch operating lever 1, forming the first line of protection. When the circuit breaker is in the working position, the grounding switch operating lever 1 cannot be rotated.

[0021] Please see Figure 1 and Figure 4The positioning mechanism 4 includes a support frame 401, a movable seat 403 fixedly and rotatably connected to the support frame 401, an extension rod 402 fixedly connected to the brake plate 5, and a second spring 404 installed between the extension rod 402 and the movable seat 403. By rotating the ground knife operating rod 1, the rotation of the ground knife operating rod 1 drives the brake plate 5 to rotate, and the rotation of the brake plate 5 drives the extension rod 402 to rotate. The extension rod 402 first compresses the second spring 404. After the extension rod 402 is completely rotated out of the support frame 401, the second spring 404 deflects, and the pressure applied to the extension rod 402 is converted into thrust, which pushes the brake plate 5 to close the brake, so that the opening and closing position of the brake plate 5 can be positioned.

[0022] During operation, rotating the circuit breaker operating lever 3 causes the inclined push block 210 to rotate. The rotation of the push block 210 pushes the locking lever 206 on one side to move using the inclined surface. The movement of the locking lever 206 causes the movable lever 202 to move along the guide frame 201. The movement of the movable lever 202 compresses the first spring 204 through the limit block 203, pushing the locking lever 206 at the other end of the movable lever 202 into the slot 208 of the locking seat 207 on the grounding switch operating lever 1, thus locking the grounding switch operating lever 1. At the same time, the movement of the movable lever 202 causes the push rod 212 to move. The movement of the push rod 212 pushes the rotating rod 213 to rotate, causing the rotating rod 213 to rotate around the rotating shaft 215, lifting the stop block 214 and blocking the end of the grounding switch operating lever 1, forming two interlocking protections, effectively improving the safety of use. When the grounding switch needs to be closed, the circuit breaker operating lever 3 is rotated in the reverse direction to release the constraint on the movable lever 202. The first spring 204 resets the movable lever 202, disengaging the locking lever 206 from the locking seat 207 on the grounding switch operating lever 1, allowing the grounding switch operating lever 1 to rotate and causing the stop block 214 to fall. Then, the grounding switch operating lever 1 is rotated, which drives the push block 210 to rotate. The push block 210 pushes the movable lever 202 upward through the inclined plane, locking the locking lever 206 at the top of the movable lever 202 into the locking seat 207 on the circuit breaker operating lever 3 for interlocking.

[0023] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. Interlocked ground engaging tool operating mechanism comprising a ground engaging tool operating lever (1) and a circuit breaker operating lever (3), characterized in that: Multiple brake pads (5) are fixedly installed on the grounding switch operating rod (1). A positioning mechanism (4) is provided on one side of the brake pads (5). A multi-interlocking mechanism (2) is provided between the grounding switch operating rod (1) and the circuit breaker operating rod (3). The multi-locking mechanism (2) includes a guide frame (201), a movable rod (202) is slidably connected inside the guide frame (201), a limit block (203) is fixedly connected to the movable rod (202), a first spring (204) is provided on both sides of the limit block (203), a fixed frame (205) is fixedly connected to both ends of the movable rod (202), a locking rod (206) is fixedly connected to the fixed frame (205), and a push rod (212) is fixedly connected to the end of the movable rod (202). Multiple elastic protrusions (211), a card holder (207), and a push block (210) with an inclined surface are fixedly connected to both the grounding knife operating lever (1) and the circuit breaker operating lever (3). The card holder (207) has a card slot (208), and an elastic stop block (209) is fixedly connected inside the card slot (208). A rotating rod (213) is provided on one side of the grounding knife operating lever (1). A rotating shaft (215) is fixedly connected to the rotating rod (213), and a stop block (214) is fixedly connected to the end of the rotating rod (213).

2. The interlock-protected gang-operated shovel mechanism of claim 1, wherein: The guide frame (201) is located inside the high-voltage cabinet, and the guide frame (201) is fixedly installed inside the high-voltage cabinet by bolts.

3. The interlock-protected gang operable implement control of claim 1, wherein: Both ends of the movable rod (202) are connected through the guide frame (201), and the movable rod (202) is slidably connected to the inner wall of the guide frame (201) through the limiting block (203).

4. The interlock-protected gang operable implement control of claim 1, wherein: One end of the first spring (204) abuts against the limiting block (203), and the other end of the first spring (204) abuts against the inner wall of the guide frame (201).

5. The interlock-protected gang operable implement control of claim 1, wherein: The card slot (208) is inclinedly disposed on the card holder (207), and one end of the card slot (208) is provided with an opening.

6. The interlock-protected gang operable implement control of claim 1, wherein: The rotating rod (213) is rotatably connected to the inner wall of the high-voltage cabinet through the rotating shaft (215), and the cross-sectional area of ​​the stop block (214) is greater than the cross-sectional area of ​​the ground knife operating rod (1).

7. The interlock-protected gang operable implement control of claim 1, wherein: The positioning mechanism (4) includes a support frame (401), and the support frame (401) is fixedly and rotatably connected to a movable seat (403).

8. The interlock-protected gang operable implement control of claim 7, wherein: An extension rod (402) is fixedly connected to the brake plate (5), and a second spring (404) is installed between the extension rod (402) and the movable seat (403).

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