An inner pull type inflation valve
An inflatable valve, inward pull type technology, applied in ventilation devices, mechanical equipment, etc., can solve the problems of gas leakage, inability to apply high pressure environment, etc., and achieve the effect of high pressure and good sealing effect.
Active Publication Date: 2018-10-19
WUHAN AVIATION INSTR
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- Description
- Claims
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Problems solved by technology
The existing mechanical inflation valve adopts a conical push-out type to close the pipeline. When the push is closed, as the pressure increases, gas leakage is prone to occur. Therefore, it can only be applied to a lower pressure range and cannot be applied to a high-pressure environment.
Method used
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Embodiment Construction
[0018] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0019] Please also see Figure 1 to Figure 5 , The inner pull-type inflation valve of the present invention includes a first valve body 1 , a second valve body 2 , a valve core 3 , a stop pin 4 , and an O-ring 5 . Wherein, after the first valve body 1 and the second valve body 2 are fitted together, the second valve body 2 is squeezed and permanently deformed by a hydraulic press to form valve bodies that can rotate with each other but are inseparable. The valve core 3 passes through the first valve body 1 and is integrally installed through the threads of the second valve body 2 . The O-ring 5 installed on the valve core 3 fits with the inner hole of the first valve body 1 to form a sealing structure in the form of a piston. The stop pin 4 is combined with the first valve body 1 through interference fit, and reaches the sliding surface of the valve core 3 ...
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The invention belongs to a valve type mechanical structure and relates to an inwards pulled type inflation valve. The inwards pulled type inflation valve comprises a first valve body (1), a second valve body (2), a valve core (3), a stop pin (4) and an O-shaped ring (5), wherein the first valve body (1) and the second valve body (2) are coaxially connected to the valve core (3) in a sleeving mode. The end of the valve core (3) is provided with a through hole communicating with an axial blind hole of the valve core (3). The O-shaped ring (5) is arranged between the valve core (3) and inner holes of the first valve body (1). According to the inwards pulled type inflation valve, the valve core (3) is closely matched with the first valve body (1) and the second valve body (2), and hence a pipeline, a gas cylinder and other containers can be inflated through the inflation device under the high pressure condition; and meanwhile, due to the fact the inflation device is of a reverse sealing structure, the inflation device can be resistant to extremely high pressure and free of leakage.
Description
technical field [0001] The invention belongs to the mechanical structure of valves, and relates to an inner pull type inflation valve. Background technique [0002] Mechanical valves are often used at various connections of pipelines to control the on-off of pipelines. Common mechanical valves include ball valves, check valves, inflation valves, safety valves, etc., which are used in different occasions to achieve corresponding purposes. [0003] Among them, the inflation valve is generally used in engineering to inject / discharge gas to an air bag, and a mechanical valve is usually used for easy operation. The existing mechanical inflation valve adopts a conical push-out type to close the pipeline. When the push is closed, as the pressure increases, gas leakage is prone to occur. Therefore, it can only be applied to a lower pressure range and cannot be applied to a high-pressure environment. . Contents of the invention [0004] The purpose of the present invention is to...
Claims
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IPC IPC(8): F16K24/00
CPCF16K24/00
Inventor 涂瑶赖念华裴鹤岩
Owner WUHAN AVIATION INSTR