Quick-release expansion device
A technology of expansion device and core rod, applied in the direction of connecting members, pins, mechanical equipment, etc., can solve problems such as complicated operation
Pending Publication Date: 2020-08-25
深圳亚太航空技术股份有限公司
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Problems solved by technology
However, the existing tensioning bolts generally have complex operations, especially for objects to be connected that need to hang beams, and cannot be quickly connected and locked through simple operations
Method used
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Embodiment Construction
[0023] The following examples are further explanations and supplements to the present invention, and do not constitute any limitation to the present invention.
[0024] like Figure 1 to Figure 7 As shown, the main gist of the quick-release expansion device of the present invention is that the end of the core rod 10 is provided with an end cap 50 for axial positioning and misuse prevention. Only when the end cap 50 is put in place, the elastic piece 40 Only then can it be inserted into the end cap 50 to achieve closure; when the end cap 50 is not put in place, the elastic piece 40 cannot be inserted into the end cap 50; and the end cap 50 is easy to install, so it is not only convenient to operate, but also can be locked quickly. At the same time, it is beneficial to prevent misoperation, and has strong safety and practicability.
[0025] Specifically, such as Figure 1 ~ Figure 3 As shown, the quick-release expansion device of the present invention includes a core rod 10 , ...
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The invention relates to a quick-release expansion device. The quick-release expansion device is characterized by comprising a core rod, a cam handle, an elastic sheet, an end cover and an expansion assembly, wherein the cam handle is rotatably connected to one end of the core rod, and the end cover is connected to the other end of the core rod; the expansion assembly is movably arranged on the core rod in a sleeving mode, and the expansion assembly can expand outwards and contract inwards under the action of the cam handle to hold the core rod tightly; and one end of the elastic sheet is connected with the cam handle, and the other end of the elastic sheet is provided with a connecting hole. According to the quick-release expansion device, only when the end cover is installed in place, the elastic sheet can be inserted into the end cover in a sleeving mode for closing, and when the end cover is not installed in place, the elastic sheet cannot be inserted into the end cover in a sleeving mode for closing, so that the potential safety hazard problem when the mounting is not in place can be effectively avoided. The quick-release expansion device can realize locking connection and disassembly through simple cam handle operation, the safety is high, the operation is simple, the practicality is high, and widely popularization is facilitated.
Description
【Technical field】 [0001] The invention relates to a connecting piece, in particular to a quick-release expansion device. 【Background technique】 [0002] With the rapid development of the aerospace industry, the working environment of aerospace products is becoming increasingly harsh, and the by-products of ordinary threaded connections cannot meet the requirements of existing aerospace products. High-performance, adjustable and high-precision threaded connections are the general trend. In the design of aerospace vehicle parts, it is necessary to reduce the radial clearance of the threaded connection pair to achieve an adjustable transition fit or interference fit between the bolt product and the matrix. The existing bolted joints are difficult to meet the design requirements, and the processing cost of the bolts is relatively expensive, and it cannot be used repeatedly for assembly and disassembly. Since the tension bolt can adjust the radial dimension, it will not affect t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16B13/06F16B13/08
CPCF16B13/045F16B13/066F16B13/0808F16B13/0858F16B13/10
Inventor 王乃文王清
Owner 深圳亚太航空技术股份有限公司