Breaker tripping mechanism for combined feed

Abstract

A circuit breaker tripping mechanism for combined feed comprises a connecting rod, a lever, an adjusting plate and a tripping block, and one end of the connecting rod is movably connected with a button sleeve rod; the button loop bar is fixedly embedded in the surface of the box body of the feed switch; the other end of the connecting rod is fixedly connected with an abutting block; the adjusting plate is installed inside a box body of the feed switch, a rotating shaft is installed in the middle of the lever, the rotating shaft penetrates through the lever and is fixedly installed on the outer side face of the adjusting plate, one end of the lever is in separable contact with the abutting block, the tripping block is installed on a circuit breaker of the feed switch, and the other end of the lever is in separable contact with the tripping block; the outer surface of the lever is connected with one end of an extension spring, the other end of the extension spring is connected with the adjusting plate, and the connecting point of the extension spring on the lever is located between the rotating shaft and the end, close to the U-shaped clamping block, of the lever. The front tripping device overcomes the defects in the prior art, can realize front tripping operation, and is labor-saving in operation, simple in structure and convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a circuit breaker tripping mechanism for combined power feeding. Background Art

[0002] In existing feeder switches, circuit breakers typically utilize a single-side lateral release mechanism. However, in combination feeder switches, some circuits, due to structural layout constraints, cannot be released from the side of the housing, requiring release from the front door. Furthermore, conventional release mechanisms often require multiple intermediate linkage components to achieve directional motion conversion when switching the release direction. The combined friction generated by these multiple moving parts during operation is significant, making operation laborious and inconvenient. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model provides a combined feeder circuit breaker tripping mechanism, which overcomes the shortcomings of the existing technology, has a reasonable design, can realize positive tripping operation, and is labor-saving to operate, simple in structure, and easy to install.

[0004] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] A combined feeder circuit breaker tripping mechanism comprises a connecting rod, a lever, an adjustment plate and a tripping block. One end of the connecting rod is movably connected to a button sleeve rod; the button sleeve rod is fixedly embedded in the surface of the feeder switch box; the other end of the connecting rod is fixedly connected to a resistance block.

[0006] The adjustment plate is installed inside the box of the feed switch, and a rotating shaft is installed in the middle of the lever. The rotating shaft passes through the lever and is fixedly installed on the outer side of the adjustment plate. One end of the lever is in detachable contact with the contact block, and the trip block is installed on the circuit breaker of the feed switch. The other end of the lever is in detachable contact with the trip block; the outer surface of the lever is connected to one end of the tension spring, and the other end of the tension spring is connected to the adjustment plate. The connection point of the tension spring on the lever is located between the rotating shaft and the end of the lever close to the contact block.

[0007] Preferably, the button sleeve rod includes a mounting sleeve, which is fixedly embedded in the surface of the box of the feed switch, and a through hole is opened in the middle of the mounting sleeve, which passes through the front and back. A pressing shaft is movably connected in the through hole, one end of the pressing shaft passes through the through hole and is connected to the end face of the connecting rod, and a button is installed on the other end of the pressing shaft, and the button is movably connected in the inner cavity of the through hole. A compression spring is sleeved on the outer surface of the pressing shaft, and a step surface is provided in the middle of the inner wall of the through hole, and the two ends of the compression spring are respectively against the step surface and the inner side surface of the button.

[0008] Preferably, the interference block is a U-shaped block structure, one side of the interference block is connected to the end of the connecting rod, and the other side of the interference block is provided with a U-shaped groove, and the end of the lever is in contact with the inner cavity of the U-shaped groove.

[0009] Preferably, a mounting plate is provided on the lower surface of the adjustment plate, a strip hole is opened on the surface of the adjustment plate, a fixing screw is provided on the strip hole, the fixing screw passes through the strip hole and is threadedly connected to the mounting plate, and the side of the mounting plate is fixedly mounted on the inner wall of the box of the feed switch.

[0010] The utility model provides a combined power feed circuit breaker tripping mechanism. It has the following beneficial effects: by pressing the button in the button sleeve rod, the connecting rod is pushed to move axially toward the resistance block, so that the resistance block can be used to push one end of the lever, so that the lever principle can be used to achieve a 90-degree movement direction conversion, thereby significantly reducing the force required for operation, so that the other end of the lever is in contact with the surface of the trip block and presses the trip block, thereby achieving the operation of tripping and powering off the circuit breaker. And when the button in the button sleeve rod is released, the lever can be acted on by the elastic tension of the tension spring so that the lever can quickly reset itself after the operation, effectively preventing the problem of forgetting to reset the lever and causing the circuit breaker to fail to close. In addition, since the resistance block and the lever are in a separate contact mode, no jamming will occur, and the friction resistance is effectively reduced, and the installation of various components is also convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for describing the prior art.

[0012] Figure 1 A schematic structural diagram of the utility model;

[0013] Figure 2 A schematic diagram of the structure of the utility model after installation;

[0014] Figure 3 A top view of the utility model after installation;

[0015] Figure 4 A schematic diagram of the expanded structure of the connecting rod and the button sleeve rod of the utility model;

[0016] Description of the numbers in the figure:

[0017] 1. Connecting rod; 2. Lever; 3. Adjustment plate; 4. Trip block; 5. Button sleeve rod; 6. Resistance block; 7. Rotating shaft; 8. Circuit breaker; 9. Tension spring; 10. Mounting plate; 11. Strip hole; 12. Fixing screw; 51. Mounting sleeve; 52. Through hole; 53. Press shaft; 54. Button; 55. Compression spring. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0019] Example 1, as Figure 1-4 As shown, a combined feeder circuit breaker tripping mechanism includes a connecting rod 1, a lever 2, an adjustment plate 3, and a tripping block 4. One end of the connecting rod 1 is movably connected to a button sleeve rod 5; the button sleeve rod 5 is fixedly embedded in the surface of the feeder switch box; the other end of the connecting rod 1 is fixedly connected to an interference block 6;

[0020] The adjusting plate 3 is installed inside the box of the feed switch, and a rotating shaft 7 is installed in the middle of the lever 2. The rotating shaft 7 passes through the lever 2 and is fixedly installed on the outer side of the adjusting plate 3. One end of the lever 2 is in detachable contact with the contact block 6, and the trip block 4 is installed on the circuit breaker 8 of the feed switch. The other end of the lever 2 is in detachable contact with the trip block 4; the outer surface of the lever 2 is connected to one end of the tension spring 9, and the other end of the tension spring 9 is connected to the adjusting plate 3. The connection point of the tension spring 9 on the lever 2 is located between the rotating shaft 7 and the end of the lever 2 close to the contact block 6. In this embodiment, fixing bolts can be respectively installed on the lever 2 and the adjusting plate 3, so that the two ends of the tension spring 9 are respectively connected to the fixing bolts.

[0021] Working principle:

[0022] To trip the circuit breaker, the button inside the button sleeve 5 is pressed, pushing the connecting rod 1 axially toward the abutment block 6. This pushes one end of the lever 2 through the abutment block 6. Since the center of the lever 2 is connected to the adjustment plate 3 via the rotating shaft 7, the lever 2 can be rotated about the rotating shaft 7 to achieve a 90-degree change in direction. This causes the other end of the lever 2 to contact the surface of the trip block 4, pressing the trip block 4, thereby tripping and de-energizing the circuit breaker. When the button inside the button sleeve 5 is released, the lever 2 quickly resets itself after the operation, effectively preventing the problem of forgetting to reset the lever and causing a failure to close the circuit breaker. Furthermore, the contact between the abutment block 6 and the lever 2 is separated, eliminating any jamming, effectively reducing frictional resistance, and facilitating assembly of various components.

[0023] Embodiment 2, as a further preferred embodiment of embodiment 1, the button sleeve rod 5 includes a mounting sleeve 51, which is fixedly embedded in the surface of the box of the feed switch, and a through hole 52 is opened in the middle of the mounting sleeve 51, which passes through the front and back. A pressing shaft 53 is movably connected in the through hole 52, and one end of the pressing shaft 53 passes through the through hole 52 and is connected to the end surface of the connecting rod 1. A button 54 is installed at the other end of the pressing shaft 53, and the button 54 is movably connected in the inner cavity of the through hole 52. A compression spring 55 is sleeved on the outer surface of the pressing shaft 53, and a step surface is provided in the middle of the inner wall of the through hole 52. The two ends of the compression spring 55 are respectively against the step surface and the inner side surface of the button 54.

[0024] Therefore, when the connecting rod 1 is pushed to move axially toward the abutment block 6, the button 54 is pressed to compress the compression spring 55, thereby driving the pressing shaft 53 to move along the through hole 52 toward the connecting rod 1. Since the end of the pressing shaft 53 is connected to the end of the connecting rod 1, the connecting rod 1 can be pushed axially toward the abutment block 6 by pressing the shaft 53, thereby achieving the operation of tripping and de-energizing the circuit breaker. After releasing the button 54, the elastic restoring force of the compression spring 55 can be used to push the button 54 to reset, and then the pressing shaft 53 can drive the connecting rod 1 to achieve the automatic reset effect after the operation, thereby effectively avoiding the problem of forgetting to reset the circuit breaker and causing it to fail to close.

[0025] In the third embodiment, as a further preferred embodiment of the first embodiment, the interference block 6 is a U-shaped block structure, one side of the interference block 6 is connected to the end of the connecting rod 1, and the other side of the interference block 6 is provided with a U-shaped groove, and the end of the lever 2 is in contact with the inner cavity of the U-shaped groove. By setting the interference block 6 as a U-shaped block structure, the end of the lever 2 can be in contact with the inner cavity of the U-shaped groove, thereby effectively ensuring the stability of the end of the lever 2 when in contact with the interference block 6.

[0026] In the fourth embodiment, as a further preferred embodiment of the first embodiment, a mounting plate 10 is provided on the lower surface of the adjustment plate 3. A strip-shaped hole 11 is provided on the surface of the adjustment plate 3. A fixing screw 12 is provided in the strip-shaped hole 11. The fixing screw 12 passes through the strip-shaped hole 11 and is threadedly connected to the mounting plate 10. The mounting plate 10 is laterally fixed to the inner wall of the feeder switch housing. The strip-shaped hole 11 on the surface of the adjustment plate 3 allows the mounting position of the adjustment plate 3 on the upper surface of the mounting plate 10 to be adaptively adjusted according to actual needs, thereby effectively ensuring that the end of the lever 2 on the adjustment plate 3 corresponds to the position of the trip block 4.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A combined feeder circuit breaker tripping mechanism, characterized in that: It comprises a connecting rod (1), a lever (2), an adjustment plate (3) and a tripping block (4); one end of the connecting rod (1) is movably connected to a button sleeve rod (5); the button sleeve rod (5) is fixedly embedded in the surface of the box body of the feed switch; the other end of the connecting rod (1) is fixedly connected to a resistance block (6); The adjustment plate (3) is installed inside the box of the feed switch, a rotating shaft (7) is installed in the middle of the lever (2), the rotating shaft (7) passes through the lever (2) and is fixedly installed on the outer side of the adjustment plate (3), one end of the lever (2) is in detachable contact with the contact block (6), the trip block (4) is installed on the circuit breaker (8) of the feed switch, and the other end of the lever (2) is in detachable contact with the trip block (4); the outer surface of the lever (2) is connected to one end of a tension spring (9), the other end of the tension spring (9) is connected to the adjustment plate (3), and the connection point of the tension spring (9) on the lever (2) is located between the rotating shaft (7) and the end of the lever (2) close to the contact block (6).

2. A combined feeder circuit breaker tripping mechanism according to claim 1, characterized in that: The button sleeve rod (5) includes a mounting sleeve (51), the mounting sleeve (51) is fixedly embedded in the surface of the box body of the feed switch, a through hole (52) is provided in the middle of the mounting sleeve (51) and is passed through from front to back, a pressing shaft (53) is movably connected in the through hole (52), one end of the pressing shaft (53) passes through the through hole (52) and is connected to the end face of the connecting rod (1), a button (54) is installed at the other end of the pressing shaft (53), the button (54) is movably connected in the inner cavity of the through hole (52), a compression spring (55) is sleeved on the outer surface of the pressing shaft (53), a step surface is provided in the middle of the inner wall of the through hole (52), and the two ends of the compression spring (55) are respectively against the step surface and the inner side surface of the button (54).

3. A combined feeder circuit breaker tripping mechanism according to claim 1, characterized in that: The interference block (6) is a U-shaped block structure, one side of the interference block (6) is connected to the end of the connecting rod (1), and the other side of the interference block (6) is provided with a U-shaped groove, and the end of the lever (2) is in contact with the inner cavity of the U-shaped groove.

4. A combined feeder circuit breaker tripping mechanism according to claim 1, characterized in that: A mounting plate (10) is provided on the lower surface of the adjustment plate (3), a strip hole (11) is provided on the surface of the adjustment plate (3), a fixing screw (12) is provided on the strip hole (11), the fixing screw (12) passes through the strip hole (11) and is threadedly connected to the mounting plate (10), and the side of the mounting plate (10) is fixedly mounted on the inner wall of the box of the feed switch.

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