A rubber hose joint and sleeve
A technology of rubber hose joints and sleeves, applied in the direction of pipes/pipe joints/fittings, hose connection devices, mechanical equipment, etc., can solve the problems of hose assembly leakage, easy damage of hoses, etc., to protect the hose, avoid damage to the hose, even force effect
Active Publication Date: 2016-08-03
ZOOMLION HEAVY IND CO LTD
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Problems solved by technology
When the rubber hose joint and the rubber hose are buckled (that is, the rubber hose is placed between the outer wall of the core rod 120 and the inner wall of the sleeve 110 from the hose inlet 130, the outer layer of the rubber hose is in contact with the inner wall of the sleeve 110, and the inner layer of the rubber hose is in contact with the outer wall of the core rod 120. , and then use a crimping device to compress the outer wall of the sleeve 110 to make it shrink, and when the rubber hose is bitten between the tooth shape 111 and the tooth shape 121), the rubber hose is easily damaged, which in turn causes the rubber hose assembly to leak
Method used
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[0026] The following description will be made in conjunction with the accompanying drawings and specific implementation manners.
[0027] see Figures 3 to 5 , image 3 It is a schematic diagram of a half-section three-dimensional structure of an embodiment of the rubber hose joint of the present invention, Figure 4 yes image 3 The shown schematic diagram of the cross-sectional structure of the hose joint before crimping, Figure 5 yes image 3 A schematic cross-sectional structure diagram of the rubber hose structure after crimping. In this embodiment, the rubber hose joint 300 includes a sleeve 310 and a core rod 320 , and the inside of the sleeve 310 is hollow so that the core rod 320 is sheathed in the sleeve 310 . The inner wall of the sleeve 310 is sequentially provided with a plurality of first toothed mechanisms 311 along the length direction, and the outer wall of the core rod 320 is sequentially provided with a plurality of second toothed mechanisms 321 along ...
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The invention provides a rubber hose connecter and sleeves. The rubber hose connecter comprises the sleeves (310 and 610) and core bars (320 and 620) installed in the sleeves respectively. A plurality of first tooth-shaped mechanisms (311 and 611) are sequentially arranged on the inner walls of sleeves in the length direction. A plurality of second tooth-shaped mechanisms (321 and 621) are sequentially arranged on the outer walls of sleeves in the length direction. The difference obtained by subtracting the second distance between adjacent second tooth-shaped mechanisms from the first distance between adjacent first tooth-shaped mechanisms after buckling and pressing is less than a preset numerical value as a result, all the first tooth-shaped mechanisms and all the second tooth-shaped mechanisms face one another in a staggered mode, and it is realized all the first tooth-shaped mechanisms at least partly fall into second groove mechanisms (322 and 622), formed by all the adjacent second tooth-shaped mechanisms, in the outer walls of the core bars. In this way, after an assembly is buckled and pressed, a rubber hose is effectively protected.
Description
technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a hose joint and a sleeve. Background technique [0002] The rubber hose joint is a connecting piece used for the connection between the rubber hose and the hydraulic components. One end of the rubber hose is fastened by crimping, and together with the rubber hose, it becomes a hose assembly, and the other end passes through a nut or a flange when necessary. It is installed on mechanical parts (or hydraulic components) in the same way, so the hose joint is widely used in construction machinery. [0003] see figure 1 , the existing rubber hose joint is composed of a sleeve 110 and a core rod 120, wherein the inner wall of the sleeve 110 and the outer wall of the core rod 120 are provided with a plurality of mutually independent tooth shapes 111, 121, and all phases of the sleeve 110 The tooth pitch between adjacent tooth shapes 111 is d, the tooth pitch between all...
Claims
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IPC IPC(8): F16L33/22
CPCF16L33/227
Inventor 胡圣雷
Owner ZOOMLION HEAVY IND CO LTD