Water seal bushing
A casing and water seal technology, which is applied to the sealing device of the engine, engine components, machine/engine, etc., can solve the problems of excessive machining size deviation, time-consuming and laborious, water leakage at the joint surface between the cylinder head and the body, and achieve improved sealing Effect, the effect of reducing the degree of water leakage
Active Publication Date: 2013-04-10
ZICHAI POWER CO LTD
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Problems solved by technology
[0004] However, with the development of high-strength diesel engines, the pressure of the waterway increases, and the copper water seal sleeve can no longer meet the use requirements, which makes the seal of the water seal sleeve not good; even in diesel engines with low water pressure, the cylinder head once assembled. When the pressure deviation of the water seal sleeve occurs, the processing size deviation of the water seal sleeve and the installation hole of the water seal sleeve is too large, it will cause water leakage at the joint surface between the cylinder head and the body, and it is very inconvenient to replace the water seal sleeve at this position, and the cylinder needs to be dismantled again. Cover and other parts, time-consuming and labor-intensive
Method used
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Embodiment Construction
[0022] The object of the present invention is to provide a water-seal casing, which improves the sealing effect of the water-seal casing and effectively reduces the degree of water leakage at the position of the water-seal casing.
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] Please refer to figure 1 , figure 2 and image 3 , figure 1 It is a structural schematic diagram of a rubber sleeve and an O-ring of a water-sealed casing in a specific embodiment of the present invention; figure 2 It ...
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The invention discloses a water seal bushing, which comprises a rubber sleeve (1) and a metal bushing (2) nested in the rubber sleeve (1); at least one end of the rubber sleeve (1) is provided with an O-shaped ring (3) which is coaxial with the rubber sleeve (1), and the inner diameter of the O-shaped ring (3) is less than the inner diameter of the rubber sleeve (1). When being mounted in a water seal bushing-mounting hole of an engine body, the water seal bushing provided by the invention receives axial squeezing force, and thereby at least one of a cylinder head and the engine body is sealed by the O-shaped ring; since the inner diameter of the O-shaped ring is less than the inner diameter of the rubber sleeve, the inner diameter of the O-shaped ring is squeezed into the rubber sleeve, and as a result, the middle part of the metal bushing is outwardly bulged as well; the middle part of the metal bushing outwardly squeezes the rubber sleeve, so that the middle part of the rubber sleeve is in tight contact with the wall of the water seal bushing-mounting hole, consequently, the sealing effect of the water seal bushing is enhanced, and the degree of water leakage at the position of the water seal bushing is effectively decreased.
Description
technical field [0001] The invention relates to the technical field of sealing, in particular to a water seal sleeve. Background technique [0002] During the use of the diesel engine, water leakage at the position of the water seal casing often occurs. [0003] At present, the commonly used water seal sleeve is copper water seal sleeve. The copper water seal sleeve has a copper tube and an O-ring embedded on the outside. The deformation makes the hole wall of the water seal sleeve installation hole fit together to realize the sealing of the waterway. [0004] However, with the development of high-strength diesel engines, the pressure of the waterway increases, and the copper water seal sleeve can no longer meet the use requirements, which makes the seal of the water seal sleeve not good; even in diesel engines with low water pressure, the cylinder head once assembled. When the pressure deviation of the water seal sleeve occurs, the processing size deviation of the water s...
Claims
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Inventor 黄猛辛强之刘云浩陈山范崇华孙镇张震王哲李洪亮李力张英王晓磊杨尚刚杜冬锋王超穆振仟吕忠凯牛志坚张新亮李希望刘艳齐共娟
Owner ZICHAI POWER CO LTD