A circuit breaker with a buffer structure

Abstract

The utility model discloses a circuit breaker with buffer structure, including shell, and the operating handle of shell rotation cooperation, shell is equipped with operating mouth, still include the buffer mechanism and counter of symmetry and be equipped with operating mouth both sides, buffer mechanism contains slide, buffer board and buffer spring, and the slide hole of operating mouth slide rod step sliding fit is cooperated with slide rod, and one end of slide rod is connected buffer board, and the other end is equipped with spring step, and buffer spring is sleeved with slide rod and two ends respectively resist spring step and slide rod step end face, the installation groove of operating mouth one side slide rod step bottom is equipped with counter, and when operating handle moves to buffer mechanism, one end of slide rod resists counter trigger button. Buffer mechanism passes through slide rod, buffer board and buffer spring cooperation, and the impact of buffer operating handle is avoided, and the noise and component abrasion are avoided, and the life is prolonged, and operating handle movement triggers counter automatic recording frequency, and the data of operation and maintenance are provided, and the cost and failure risk are reduced, and buffer mechanism symmetrical arrangement, compact structure, promote stability and practicality.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and specifically to a circuit breaker with a buffer structure. Background Technology

[0002] Circuit breakers are core devices in power systems for controlling circuit switching and providing fault protection. Smooth operation of the operating handle is crucial for ensuring the reliability of their opening and closing. Existing circuit breaker operating handles are typically operated by rotating through an operating port on the casing. However, in actual operation, when the operating handle reaches its limit position, it is prone to direct rigid impact with the edge of the operating port.

[0003] This rigid impact not only generates significant impact noise, disrupting the operating environment, but also causes wear and deformation at the impact points between the operating handle and the housing. Over time, this will compromise the precision of the transmission mechanism and shorten the circuit breaker's lifespan. More critically, existing circuit breakers generally lack a mechanism to record the number of operations linked to the operating actions, making it impossible to accurately count the frequency of handle movements. This makes it difficult for maintenance personnel to develop targeted maintenance plans based on actual operation frequency, potentially leading to increased costs due to over-maintenance or increased equipment failure risks due to untimely maintenance.

[0004] In summary, existing circuit breakers have insufficient buffering and noise reduction effects during operation and lack effective means of recording the number of operations, making it difficult to meet the actual needs of high reliability and convenient operation and maintenance of power equipment. Utility Model Content

[0005] To address the shortcomings of the prior art, this utility model provides a circuit breaker with a buffer structure.

[0006] The technical solution adopted by this utility model is: a circuit breaker with a buffer structure, including a housing and an operating handle that rotates with the housing. The housing is provided with an operating port for the operating handle to extend out. It also includes a buffer mechanism and a counter. The buffer mechanism is symmetrically arranged on both sides of the operating port. The buffer mechanism includes a slide rod, a buffer plate, and a buffer spring. The slide rod is slidably engaged with a sliding hole on the slide rod step of the operating port. One end of the slide rod is connected to the buffer plate, and a spring step is provided on the other end. The buffer spring is fitted on the slide rod, with one end abutting against the spring step and the other end abutting against the end face of the slide rod step. The bottom of the slide bar step on one side of the operating port is provided with a mounting groove for installing the counter. When the operating handle moves towards the buffer mechanism, one end of the slide bar can abut against the trigger button of the counter.

[0007] Furthermore, a rubber pad is provided on one side of the buffer plate located on the operating handle.

[0008] Furthermore, a counting and reading window is provided on the slide bar step.

[0009] Furthermore, the operating handle is equipped with "OFF" and "ON" indicator labels.

[0010] Furthermore, the surface of the buffer plate that contacts the operating handle is a plane that matches the rotation trajectory of the operating handle.

[0011] Furthermore, the rubber pad is fixed to the buffer plate by vulcanization bonding or a slot structure.

[0012] Furthermore, the counter is a mechanical counter or an electronic counter. When it is an electronic counter, its output terminal is connected to a remote signal interface.

[0013] The beneficial effects of this utility model are: 1. The buffer mechanism, through the cooperation of the slide bar, buffer plate and buffer spring, can effectively buffer the impact when the operating handle moves, avoid noise caused by rigid collision, reduce the wear and deformation of parts, and extend the service life of the circuit breaker.

[0014] 2. The operation handle can trigger a counter when it moves, which can automatically record the number of operations, providing maintenance personnel with accurate usage data to support the development of targeted maintenance plans and reduce maintenance costs and failure risks.

[0015] 3. The buffer mechanism is symmetrically arranged on both sides of the operating port. It has a compact structure and is easy to install. It does not affect the original operating logic of the circuit breaker and improves the overall operational stability and practicality of the equipment.

[0016] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0020] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.

[0021] Figure 1-3 In the middle: 1. Outer shell; 2. Operating handle; 3. Operating port; 4. Buffer mechanism; 5. Counter; 6. Slide rod; 7. Buffer plate; 8. Buffer spring; 9. Slide hole; 10. Spring step; 11. Mounting groove; 12. Rubber pad; 13. Reading window; 14. Slide rod step. Detailed Implementation

[0022] 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.

[0023] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0024] This invention provides a circuit breaker with a buffer structure.

[0025] In this embodiment, refer to Figure 1-3 The circuit breaker with a buffer structure includes a housing 1 and an operating handle 2 that rotates with the housing 1. The housing is provided with an operating port 3 for the operating handle to extend out. It also includes a buffer mechanism 4 and a counter 5. The buffer mechanism is symmetrically arranged on both sides of the operating port. The buffer mechanism includes a slide rod 6, a buffer plate 7, and a buffer spring 8. The slide rod is slidably engaged with the slide hole 9 on the slide rod step 14 of the operating port. One end of the slide rod is connected to the buffer plate, and the other end is provided with a spring step 10. The buffer spring is fitted on the slide rod, with one end abutting against the spring step and the other end abutting against the end face of the slide rod step. The bottom of the slide bar step on one side of the operating port is provided with a mounting groove 11 for installing the counter. When the operating handle moves to the buffer mechanism side, one end of the slide bar can abut against the trigger button of the counter.

[0026] In the above technical solution, buffer mechanisms are symmetrically added on both sides of the circuit breaker operating port. In the buffer mechanism, the slide rod slides in conjunction with the slide hole of the slide rod step of the operating port. The buffer spring is fitted onto the slide rod and forms elastic support through the spring step and the end face of the slide rod step. An installation groove is provided at the bottom of the slide rod step on one side of the operating port for installing a counter. When the operating handle is rotated to the buffer mechanism side, the buffer plate is squeezed to drive the slide rod to slide, and one end of the slide rod triggers the counter button.

[0027] The symmetrical buffer mechanism absorbs the impact of the operating handle through spring elastic buffering, avoiding the wear and deformation of parts caused by rigid collisions, and eliminating impact noise; the operation action linkage counter automatically records the number of times, providing data support for operation and maintenance, and the structure is compact and does not affect the original operation logic.

[0028] Specifically, a rubber pad 12 is provided on one side of the operating handle of the buffer plate.

[0029] In this embodiment, a rubber pad is added to the side of the buffer plate facing the operating handle. By utilizing the elastic deformation characteristics of the rubber material, the operating handle first interacts with the rubber pad when it comes into contact with the buffer plate, further reducing impact noise. This avoids direct contact between the metal operating handle and the buffer plate, reducing wear and protecting the surface of the components.

[0030] Specifically, a counting and reading window 13 is provided on the slide bar step.

[0031] In this embodiment, a counting reading window is opened on the sliding step where the counter is installed. The window position corresponds to the counting display part of the counter, and the counter can be observed without disassembling the parts.

[0032] Specifically, the control handle is equipped with "OFF" and "ON" indicator labels.

[0033] In this embodiment, the on / off status of the circuit breaker is displayed intuitively, avoiding misoperation; the operation process is simplified, and the operation accuracy is improved, making it especially suitable for novice operators.

[0034] Specifically, the surface of the buffer plate that contacts the operating handle is a plane that matches the rotation trajectory of the operating handle.

[0035] In this embodiment, the surface of the buffer plate that contacts the operating handle is designed as a plane that matches the rotation trajectory of the operating handle, so that the contact is a surface contact rather than a point / line contact. This increases the contact area, disperses the impact load on the operating handle, avoids component damage caused by local stress concentration, ensures a smooth buffering process, and extends the service life of the buffer mechanism.

[0036] Specifically, the rubber pad is fixed to the buffer plate by vulcanization bonding or a groove structure.

[0037] In this embodiment, both fixing methods can ensure that the rubber pad is firmly installed and prevent it from falling off during the buffering process; the vulcanization bonding has good sealing performance, the slot structure is easy to replace, and it is suitable for different usage scenarios.

[0038] Specifically, the counter is a mechanical counter or an electronic counter. When it is an electronic counter, its output terminal is connected to a remote signal interface.

[0039] In this embodiment, the mechanical counter is low in cost and highly reliable, making it suitable for simple operation and maintenance scenarios; the electronic counter, in conjunction with a remote interface, can remotely monitor the number of operations, making it suitable for intelligent operation and maintenance systems and improving the level of intelligent operation and maintenance.

[0040] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A circuit breaker with a buffer structure, comprising a housing and an operating handle rotatably fitted with the housing, wherein the housing is provided with an operating opening for the operating handle to extend out, characterized in that: It also includes a buffer mechanism and a counter, wherein the buffer mechanism is symmetrically arranged on both sides of the operation port; The buffer mechanism includes a slide rod, a buffer plate, and a buffer spring. The slide rod is slidably engaged with a sliding hole on the slide rod step of the operating port. One end of the slide rod is connected to the buffer plate, and a spring step is provided on the other end. The buffer spring is fitted on the slide rod, with one end abutting against the spring step and the other end abutting against the end face of the slide rod step. The bottom of the slide bar step on one side of the operating port is provided with a mounting groove for installing the counter. When the operating handle moves towards the buffer mechanism, one end of the slide bar can abut against the trigger button of the counter.

2. The circuit breaker with a buffer structure according to claim 1, characterized in that: The buffer plate is equipped with a rubber pad on one side of the operating handle.

3. The circuit breaker with a buffer structure according to claim 1, characterized in that: A counting and reading window is provided on the slide bar step.

4. The circuit breaker with a buffer structure according to claim 1, characterized in that: The control handle is equipped with "OFF" and "ON" indicators.

5. The circuit breaker with a buffer structure according to claim 1, characterized in that: The surface of the buffer plate that contacts the operating handle is a plane that matches the rotation trajectory of the operating handle.

6. The circuit breaker with a buffer structure according to claim 2, characterized in that: The rubber pad is fixed to the buffer plate by vulcanization bonding or a slot structure.

7. The circuit breaker with a buffer structure according to claim 1 or 3, characterized in that: The counter is either a mechanical counter or an electronic counter. When it is an electronic counter, its output terminal is connected to a remote signal interface.

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