A quick-release oil buffer structure installed in a circuit breaker

Abstract

This utility model discloses a quick-release oil buffer structure installed inside a circuit breaker, belonging to the field of circuit breaker technology. It includes a chassis mounted on the bottom of the circuit breaker; a base plate connected to the chassis via several locking components, with a gap of 5-8 mm between the base plate and the chassis; an oil buffer base connected to the base plate via a mounting plate, containing an oil buffer piston; an oil buffer cap mounted on the end of the oil buffer piston, moving synchronously with it; and a main shaft with rollers on it. The oil buffer cap contacts the rollers to buffer the main shaft. This utility model's oil buffer structure, installed inside the circuit breaker, combines functionality with ease of installation and disassembly, thereby improving the efficiency of circuit breaker characteristic parameter adjustment.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breaker technology, and in particular relates to a quick-release oil buffer structure installed in a circuit breaker. Background Technology

[0002] In the field of circuit breakers, oil damping technology is a key technology used in power equipment to control the impact of mechanical motion. Its core lies in absorbing kinetic energy through hydraulic damping to achieve smooth braking during the opening process. The oil damper utilizes the compressibility and viscous resistance of hydraulic oil to convert the kinetic energy of mechanical motion into heat energy for dissipation. At the end of the circuit breaker's opening, the piston's movement within the cylinder forces the oil through a narrow gap, generating a reverse damping force, thereby reducing the speed of the moving parts and avoiding rigid impact. The oil damper needs to be reliably fixed to the circuit breaker housing. However, due to differences in each mechanism and the temperature influence of the hydraulic oil within the damper, parameter deviations can occur when matching the damper to the circuit breaker. Sometimes, it is necessary to disassemble and reassemble the oil damper to add or remove hydraulic oil, which necessitates easy disassembly and reassembly of the damper.

[0003] The oil buffers installed inside conventional circuit breakers are fixed to the base plate of the chassis with four bolts. The bolt heads are all at the bottom of the chassis. However, a chassis vehicle is usually required to be installed at the bottom of the circuit breaker. This means that if the oil buffer is to be installed or removed, the chassis vehicle must be removed first. Therefore, the installation and removal of the oil buffer is inconvenient and causes many problems in actual use. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art by providing a quick-release oil buffer structure installed inside a circuit breaker to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a quick-release oil buffer structure installed inside a circuit breaker, comprising...

[0006] A chassis vehicle, which is mounted at the bottom of the circuit breaker;

[0007] The base plate is connected to the chassis vehicle by a number of locking components, and the gap between the base plate and the chassis vehicle is 5-8mm;

[0008] An oil buffer base is provided, wherein the oil buffer base is connected to the base plate via a mounting plate, and an oil buffer piston is provided inside the oil buffer base;

[0009] An oil buffer cap is installed at the end of the oil buffer piston and moves synchronously with the oil buffer piston;

[0010] A spindle is provided with rollers. After the oil buffer cap contacts the rollers, the spindle is buffered by the rollers.

[0011] In a preferred embodiment of this utility model, a plurality of circuit breaker partitions are provided on the base plate, and the main shaft is mounted on the circuit breaker partitions.

[0012] In a preferred embodiment of this utility model, the circuit breaker partitions are multiple and arranged in an adjacent parallel manner.

[0013] In a preferred embodiment of this utility model, the side edge of the base plate is provided with an arc-shaped protrusion to form a U-shaped structure.

[0014] In a preferred embodiment of this utility model, a positioning pin is provided on the mounting plate, and the positioning pin enters the positioning hole of the base plate to position the mounting plate.

[0015] In a preferred embodiment of this utility model, an oil buffer cap is provided on the top of the oil buffer base, and the oil buffer cap and the oil buffer cap are coaxially arranged to install the oil buffer cap.

[0016] In a preferred embodiment of this utility model, the main shaft is provided with a plurality of crank arms, and the roller is installed between two adjacent crank arms.

[0017] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0018] The oil buffer structure of this utility model is installed inside the circuit breaker. The oil buffer structure combines functionality and ease of disassembly and assembly, thereby improving the efficiency of circuit breaker characteristic parameter debugging. In addition, the oil buffer structure is simple and easy to disassemble and assemble, thus effectively reducing the workload of debugging and maintenance of finished circuit breakers. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;

[0021] Figure 2 for Figure 1 The main view;

[0022] Figure 3 This is a partial structural schematic diagram of a preferred embodiment of the present invention;

[0023] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of the oil buffer and the main shaft in a preferred embodiment of the present invention.

[0025] In the diagram: 10, chassis; 20, base plate; 201, arc-shaped protrusion; 21, locking component; 30, oil buffer base; 31, mounting plate; 32, oil buffer piston; 40, oil buffer cap; 50, main shaft; 51, roller; 60, circuit breaker partition; 70, oil buffer cover; 80, crank arm. Detailed Implementation

[0026] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0027] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This embodiment provides a quick-release oil buffer structure installed inside a circuit breaker. The oil buffer structure is both functional and easy to install and remove, thereby improving the efficiency of circuit breaker characteristic parameter debugging. In addition, the oil buffer structure is simple and easy to install and remove, thus effectively reducing the workload of debugging and maintenance of finished circuit breakers.

[0029] Combination Figures 1 to 5 As shown, the quick-release oil buffer structure of this embodiment includes a chassis 10, a base plate 20, an oil buffer base 30, an oil buffer cap 40, and a main shaft 50. The chassis 10 is installed at the bottom of the circuit breaker, and the base plate 20 is installed above the chassis 10 with a gap between them to facilitate the disassembly and assembly of the oil buffer structure. The oil buffer base 30 is installed on the base plate 20. After the oil buffer cap 40 is pushed out, it buffers and limits the roller 51 on the main shaft 50, thereby achieving the buffering treatment of the main shaft 50.

[0030] In this embodiment, the base plate 20 is connected to the chassis 10 by several locking parts 21. The gap between the base plate 20 and the chassis 10 is 5-8mm. Within this height range, the oil buffer structure can be better installed and removed from the base plate 20 without interference with the chassis 10. The oil buffer base 30 is connected to the base plate 20 by a mounting plate 31. An oil buffer piston 32 is provided inside the oil buffer base 30. An oil buffer cap 40 is installed at the end of the oil buffer piston 32 and moves synchronously with the oil buffer piston 32. When the oil buffer structure is in use, the oil buffer piston 32 drives the oil buffer cap 40 to move. A roller 51 is provided on the main shaft 50. After the oil buffer cap 40 contacts the roller 51, the roller 51 buffers the main shaft 50, thus realizing the function of the oil buffer structure.

[0031] Specifically, in this embodiment, a plurality of circuit breaker partitions 60 are provided on the base plate 20. The main shaft 50 is installed on the circuit breaker partitions 60. There are multiple circuit breaker partitions 60 arranged in an adjacent and parallel manner. The main shaft 50 is installed on the circuit breaker partitions 60 so that the main shaft 50 can be used in the circuit breaker.

[0032] Combination Figure 1 , Figure 3 as well as Figure 4 As shown, the side edge of the base plate 20 in this embodiment is provided with an arc-shaped protrusion 201 to form a U-shaped structure. The U-shaped base plate 20 design gives it a recessed structure, which is beneficial for the installation of the oil buffer structure and allows for quick disassembly of the oil buffer structure later. The mounting plate 31 in this embodiment is provided with a positioning pin (not shown in the figure). The positioning pin enters the positioning hole of the base plate 20 to position the mounting plate 31.

[0033] In this embodiment, an oil buffer cap 70 is provided on the top of the oil buffer base 30. The oil buffer cap 70 and the oil buffer cap 40 are coaxially arranged to install the oil buffer cap 40. The oil buffer cap 70 stably installs the oil buffer cap 40, making the movement of the oil buffer cap 40 more stable. In this embodiment, a number of crank arms 80 are provided on the main shaft 50, and the roller 51 is installed between two adjacent crank arms 80.

[0034] In actual use, the oil buffer structure of this embodiment is installed on the base plate 20, and the gap between the base plate 20 and the chassis 10 is 5-8mm. The base plate 20 adopts a U-shaped structure design to install the oil buffer structure inside the circuit breaker. The oil buffer structure has both functionality and ease of disassembly and assembly, thereby improving the efficiency of circuit breaker characteristic parameter debugging. In addition, the oil buffer structure is simple and easy to disassemble and assemble, thereby effectively reducing the workload of debugging and maintenance of finished circuit breakers.

[0035] While the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present invention. That is, the methods, systems, or devices discussed above are merely examples. Various configurations can be appropriately omitted, substituted, or added to various processes or components. For example, in alternative configurations, methods can be performed in a different order than described, and / or various stages can be added, omitted, and / or combined. Moreover, features described with respect to certain configurations can be combined in various other configurations. Different aspects and elements of the configuration can be combined in a similar manner. Furthermore, as technology develops, many elements are merely examples and do not limit the scope of this disclosure or the claims.

[0036] Specific details are provided in the specification to offer a thorough understanding of exemplary configurations, including implementations. However, configurations can be practiced without these specific details; for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring the configuration. This description provides only exemplary configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes can be made to the function and arrangement of the elements without departing from the spirit or scope of this disclosure.

[0037] Furthermore, although each operation can be described as a sequential process, many operations can be executed in parallel or simultaneously. Additionally, the order of operations can be rearranged. A process may have additional steps. Moreover, examples of methods can be implemented using hardware, software, firmware, middleware, code, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or code, the program code or code segments used to perform the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium and executed by a processor.

[0038] In summary, the above detailed description is intended to be exemplary and not restrictive, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of this invention. These embodiments should be understood as illustrative only and not as limiting the scope of protection of this invention. After reading the description of this invention, those skilled in the art can make various alterations or modifications to it, and these equivalent changes and modifications also fall within the scope defined by the claims of this invention.

Claims

1. A quick-release oil buffer structure installed inside a circuit breaker, characterized in that, include Chassis vehicle (10), said chassis vehicle (10) is mounted on the bottom of the circuit breaker; The base plate (20) is connected to the chassis vehicle (10) by a number of locking parts (21), and the gap between the base plate (20) and the chassis vehicle (10) is 5-8mm; An oil buffer base (30) is connected to the base plate (20) via a mounting plate (31), and an oil buffer piston (32) is provided inside the oil buffer base (30). An oil buffer cap (40) is installed at the end of the oil buffer piston (32) and moves synchronously with the oil buffer piston (32); A spindle (50) is provided with rollers (51). After the oil buffer cap (40) contacts the rollers (51), the spindle (50) is buffered by the rollers (51).

2. The quick-release oil buffer structure installed in a circuit breaker according to claim 1, characterized in that, The base plate (20) is provided with a plurality of circuit breaker partitions (60), and the circuit breaker partitions (60) mount the main shaft (50).

3. The quick-release oil buffer structure installed in a circuit breaker according to claim 2, characterized in that, The circuit breaker partitions (60) are multiple and arranged in adjacent parallel positions.

4. The quick-release oil buffer structure installed in a circuit breaker according to claim 1, characterized in that, The side edge of the base plate (20) is provided with an arc-shaped protrusion (201) to form a U-shaped structure.

5. The quick-release oil buffer structure installed in a circuit breaker according to claim 1, characterized in that, The mounting plate (31) is provided with a positioning pin, which enters the positioning hole of the base plate (20) to position the mounting plate (31).

6. The quick-release oil buffer structure installed in a circuit breaker according to claim 1, characterized in that, The top of the oil buffer base (30) is provided with an oil buffer cap (70), which is coaxial with the oil buffer cap (40) to install the oil buffer cap (40).

7. The quick-release oil buffer structure installed in a circuit breaker according to claim 1, characterized in that, The main shaft (50) is provided with a plurality of crank arms (80), and the roller (51) is installed between two adjacent crank arms (80).

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