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An elastic sealing and automatic technology, which is applied in fire rescue and other fields, can solve the problems of unsatisfactory sealing performance and single sealing ring structure, achieve good sealing performance, improve the overall sealing performance, and prolong the service life
Active Publication Date: 2017-07-04
薛勇
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In addition to the relatively simple structure of the sealing ring of the automatic sprinkler, the sealing surface of the automatic sprinkler body is also all in the form of a plane, and the sealing performance is not ideal all the year round.
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[0064] refer to figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown, the elastic sealing automatic sprinkler head includes a body 1, an inner sealing ring 2, an outer sealing ring 3, an elastic gasket 4, a temperature sensing element 5 and a temperature sensing element 25, a ball seat 6, an adjusting screw 7, and a splash plate 8 , may also include a ring support 23 or a column support 24. Among them, the inner seal ring 2 is fixedly fitted between the elastic gasket 4 and the ball seat 6, and is basically combined with them, and the diameter of the conical or cylindrical through hole of the inner seal ring 2 is slightly smaller than that of the ball seat The outer diameter of the protruding section of 6, so that the inner sealing ring 2 can tightly wrap the protruding section of the ball seat 6 in advance ( image 3 , Figure 4 , Figure ...
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Abstract
The invention relates to an elastically-sealed automatic sprinkler head. The automatic sprinkler head comprises a body, a thermosensitive element, an adjusting bolt, a water splashing deflector, a ball seat, an elastic gasket, a cover-shaped elastic sheet, an inner sealing washer, an outer sealing washer, a sealing washer, a sealing ring and the like, wherein the elastic gasket, the ball seat and the cover-shaped elastic sheet can be selectively and respectively inosculated and equipped with the inner sealing washer, the outer sealing washer, the integrated sealing washer and the sealing ring with different section shapes such as a single-lip shape, a double-lip shape, an outward-turned single-lip shape, an outward-turned double-lip shape and an L shape. By virtue of different sealing surface types, the non-extrusion type elastic sealing as well as hydraulic-power sealing and hydraulic-pressure sealing of the automatic sprinkler head can be realized, the required sealing surfaces are reduced, the assembly pretightening force of the sealing surfaces and the normal temperature creep value of non-metal materials are reduced, long-time sealing performance can be achieved, and besides, when the thermosensitive element is opened and released in a fire, sealing elements are not adhered to the sealing surfaces of the body and can be separated easily, so that the sprinkler head can automatically spraying water for extinguishment.
Description
technical field [0001] The present invention relates to fire protection products, especially elastic sealing automatic sprinkler head. Background technique [0002] In the existing automatic sprinkler system, the sealing of the automatic sprinkler head is mainly to use a flexible O-shaped rubber ring, which is matched with a rigid ball seat for sealing. This kind of sealing, although the sealing is better, but because the rubber ring, etc. Non-metallic materials have room temperature creep and aging properties. Under the perennial large assembly seal pre-tightening force and water pressure extrusion, as time goes by, they will lose elasticity and sealing performance, and even the sealing surface and the body , ball seats, etc. are bonded together, causing the automatic sprinkler head to fail to automatically open in the event of a fire, delaying water spraying to extinguish the fire. In the prior art, there is also an elastic sealing structure of the automatic sprinkler hea...
Claims
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Application Information
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