A crank arm fixing connection sleeve
By optimizing the structural design of the crank arm fixed connection sleeve, adopting limiting planes, gears, and standardized interfaces, combined with a grid-like rib plate support structure, the problems of low transmission efficiency, poor stability, and difficulty in replacing parts have been solved, achieving the effects of high-efficiency transmission, buffering and shock absorption, and convenient replacement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUEQING BOHAI MECHANICAL & ELECTRICAL TECH CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-03
AI Technical Summary
The existing crank arm fixed connection sleeve has low transmission efficiency, poor stability, severe vibration and wear, and difficulty in replacing parts, which affects the reliability of the equipment and maintenance costs.
A connecting sleeve comprising a main body, a limiting plane, gears, a slot, a connecting part interface, and a moving contact interface is designed. It adopts a standardized installation interface and enhances strength through a grid-like rib support structure. It is combined with a buffer device to reduce vibration and wear, and optimizes power transmission and parts replacement.
It improves transmission efficiency, enhances structural strength and resistance to deformation, reduces wear and noise, simplifies the parts replacement process, and reduces equipment maintenance difficulty and cost.
Smart Images
Figure CN224453587U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connecting sleeve technology, and in particular to a crank arm fixing connecting sleeve. Background Technology
[0002] In the field of electrical equipment, crank arm fixed connection sleeves are key components that play an important role in the transmission, stable operation, and maintenance of equipment. However, existing crank arm fixed connection sleeves have many shortcomings. In terms of transmission, the force application point design of some connection sleeves is unreasonable, resulting in large energy loss during power transmission and low transmission efficiency, which affects the overall working efficiency of the equipment. In terms of stability, some connection sleeves lack effective buffer design, and the vibration and impact generated during equipment operation can easily cause wear and failure, reducing equipment reliability and generating more noise. In addition, in terms of accessory installation and replacement, the installation interface of existing connection sleeves lacks standardized design. When the moving contact or moving contact connector is damaged, maintenance personnel have difficulty finding suitable replacement parts quickly, increasing the difficulty and cost of equipment maintenance. Utility Model Content
[0003] In view of this, the purpose of this utility model is to provide a crank arm fixing connection sleeve with efficient transmission, good buffering, high-strength structure and convenient parts replacement.
[0004] To achieve the above objectives, this utility model employs a crank arm fixing connecting sleeve, comprising a connecting sleeve body. Limiting planes are provided on both sides of the connecting sleeve body. At least three slots are provided on the connecting sleeve body, each slot containing a connector interface and a moving contact interface. The connector interface is located below the moving contact interface. The connector interface is used to install a moving contact connector. A moving contact crank arm is fixed to the moving contact connector. The moving contact crank arm extends upward from the connector interface to the moving contact interface, with its end portion extending beyond the connecting sleeve body. Gears are integrally formed on the limiting planes on both sides of the connecting sleeve body, and these gears are used to mesh with external transmission components.
[0005] The beneficial effects of the above structure are as follows: By optimizing the power transmission structure of the connecting sleeve, the gears integrally formed on the limiting planes on both sides of the connecting sleeve body mesh with the external transmission components, which can more effectively drive the entire connecting sleeve to rotate when the connecting sleeve rotates, reducing energy loss during power transmission. The integrally formed gears and the connecting sleeve body become a whole, reducing the number of connection points. When bearing the torque transmitted by the external transmission components, the stress can be better distributed, improving the structural strength and deformation resistance of the entire connecting sleeve. It has reserved special installation positions for the moving contact connector and the moving contact, making the installation and disassembly of the moving contact connector and the moving contact more convenient. The limiting planes reserved on both sides of the main shaft can be used to add an additional buffer device to the switch. The buffer device can play a role in buffering and shock absorption during equipment operation, reducing wear and failure caused by vibration and impact.
[0006] This utility model is further configured with a slot on the main body of the connecting sleeve, in which stiffening plates are embedded with an interference fit. The stiffening plates are interwoven to form a grid-like support structure. Through the above structural configuration, this structure can effectively disperse and withstand external forces from different directions, significantly enhancing the overall strength and rigidity of the main body of the connecting sleeve.
[0007] This utility model is further configured with standardized mounting interfaces for both the moving contact interface and the connector interface. When the moving contact or moving contact connector in the equipment is damaged and needs replacement, the standardized mounting interfaces allow maintenance personnel to quickly find suitable replacement parts. Attached Figure Description
[0008] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0009] Figure 2 This is a schematic diagram of another aspect of the present invention. Detailed Implementation
[0010] like Figures 1-2 As shown, an embodiment of this utility model provides a crank arm fixing connecting sleeve, including a connecting sleeve body 1. Limiting planes 2 are provided on both sides of the connecting sleeve body 1. At least three slots are provided on the connecting sleeve body 1. Each slot is provided with a connector interface 3 and a moving contact interface 4. The connector interface 3 is located below the moving contact interface 4. The connector interface 3 is used to install a moving contact connector. A moving contact crank arm is fixed on the moving contact connector. The moving contact crank arm extends upward from the connector interface 3 to the moving contact interface 4, and its end portion extends out of the connecting sleeve body 1. Gears 5 are also integrally formed on the limiting planes 2 provided on both sides of the connecting sleeve body 1. The gears 5 are used to mesh with external transmission components.
[0011] Multiple slots 6 are provided on the main body 1 of the connecting sleeve. Each slot 6 is embedded with a stiffening plate 7 through an interference fit. These stiffening plates 7 are crisscrossed and support each other to form a grid-like support structure. This grid-like support structure can effectively disperse and bear external forces from different directions, preventing the main body 1 of the connecting sleeve from deforming or being damaged due to excessive local stress. This improves the reliability and service life of the connecting sleeve and ensures that it can still operate stably in complex working environments.
[0012] In addition, both the moving contact interface 4 and the connector interface 3 are equipped with standardized installation interfaces. With the adoption of standardized design, moving contacts and moving contact connectors of different specifications and models can be used interchangeably as long as they meet the standards.
[0013] Of course, in addition to the above embodiments, this utility model may have other various embodiments. Without departing from the essential technical solution of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, and these changes or modifications are equivalent to the technical solution in this patent. Therefore, these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model, and the utility model creation is in line with the applicant's actual R&D capabilities and resource conditions.
Claims
1. A fixed connecting sleeve for a bell crank, characterized by: The device includes a connecting sleeve body, with limiting planes on both sides. The connecting sleeve body has at least three slots, each containing a connector interface and a moving contact interface. The connector interface is located below the moving contact interface. The connector interface is used to install a moving contact connector. A moving contact crank arm is fixed to the moving contact connector. The moving contact crank arm extends upwards from the connector interface to the moving contact interface, with its end portion extending beyond the connecting sleeve body. Gears are integrally formed on the limiting planes on both sides of the connecting sleeve body, and these gears are used to mesh with external transmission components.
2. The fixed connecting sleeve of the crank arm according to claim 1, characterized in that: The main body of the connecting sleeve is provided with a slot, and a rib plate is embedded in the slot with an interference fit. The rib plate is crisscrossed to form a grid-like support structure.
3. The fixed connecting sleeve of the bell crank according to claim 1 or 2, characterized in that: Both the moving contact interface and the connector interface are equipped with standardized installation interfaces.