Self-locking type manual plugging apparatus
A plugging device and locking technology, applied in the field of machining and assembly, can solve problems such as unreliable plugging, failure to meet service requirements, long cam handles, etc.
Inactive Publication Date: 2009-02-18
王颖峰 +3
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AI Technical Summary
Problems solved by technology
Due to the large diameter of the nozzle, the commonly used cam extrusion and internal expansion manual plugging tools cannot meet the requirements of use. The main disadvantages are: unreliable plugging and easy wear of the rubber ring
Another disadvantage is that the cam handle of the cam mechanism is generally long, which sometimes causes some interference during operation
Method used
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Embodiment Construction
[0032] The present invention will be described in further detail below by means of the accompanying drawings.
[0033] Such as figure 1 As shown, the self-locking manual sealing device of the present invention includes a base 1; a sealing slider 2 coaxial with the base 1; a sealing slider pushing out a spring 14 for making the sealing slider push; an internal sealing ring 3, used to seal the gap between the base 1 and the sealing slider 2; 3 O-rings 11, 12, 13, installed on the sealing slider 2, to be sealed in the blocked state Blocking function; sleeve 4, fixedly connected with the base 1; stop steel ball 10, installed in the sleeve 4; a locking pull sleeve 8, fixedly connected with the sleeve 1; a collar 9, used for locking Tighten the pull sleeve 8 to limit the position; a lock pull sleeve return spring 7 is used to return the lock pull sleeve 8; an externally pushed slider 6 is located between the casing 4 and the sealing slider 2; Push the slide block return spring 5, ...
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The invention provides a self-locking type manual sealing device, comprising a base, a seal sliding block which is coaxial with the base, a seal sliding block outward-pushing spring used for pushing the seal sliding block outward, an internal seal ring for sealing the gap between the base and the seal sliding block, an O-shaped seal ring arranged on the seal sliding block and used for sealing under the sealing state, a casing fixedly connected with the base, a stopping steelball arranged in the casing, a locking pulling sleeve fixedly connected with the casing, a blocking ring for spacing the locking pulling sleeve, a locking pulling sleeve return spring for drawing back the locking pulling sleeve, an outward-pushing sliding block between the casing and the seal sliding block, as well as an outward-pushing sliding block return spring for drawing back the outward-pushing sliding block. The invention has simple structure and is easy to operate, which can effectively realize manual sealing of large-diameter nozzles and can be widely used in the engineering field.
Description
technical field [0001] The invention relates to a self-locking manual sealing device, which is mainly used for sealing the interface of a product and injecting compressed air when performing a leak test in product quality inspection, and belongs to the field of mechanical processing and assembly. Background technique [0002] At present, the self-locking manual sealing device is often used for leak testing. In the field of mechanical processing and assembly, it is necessary to perform quality inspection on the processed and assembled parts in a specific process to ensure that the quality of finished and semi-finished products on the production line is qualified. And remove unqualified products at any time to avoid unqualified semi-finished products from completing all processes, resulting in unnecessary waste of manpower and material resources. A widely used detection method is the leak test. The leak test is an automatic air tightness test with dry air as the medium. An imp...
Claims
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IPC IPC(8): G01M3/02
Inventor 王颖峰唐瑞波洪浩祯邱恩水
Owner 王颖峰