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Hose joint

A technology of connectors and hoses, applied in the field of hose connectors, can solve the problems of unreliable connection, decrease of sealing performance and falling off strength, etc., achieve reliable hose connection work, improve sealing performance and falling strength, and free The effect of increasing

Inactive Publication Date: 2012-07-11
TOYOX CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, at this time, since the inner diameter of the front ring is formed to be approximately the same diameter as the outer diameter of the hose, it is difficult to insert the end of the hose into the front ring only by pushing the hose in, and there is a problem that the hose is not secure. There is a risk of threading the nut while the ground is pressed into a fixed position
If the nut is screwed in this way while the end of the hose is not fitted into the front ring, a reliable connection cannot be made, and as a result, there is a problem that the sealing performance between the outer peripheral surface of the fitting sleeve and the hose and the fall-off strength decrease.

Method used

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Examples

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Embodiment 1

[0053] like figure 1 (a)~(d), figure 2 (a)~(d), image 3 and Figure 4 As shown in (a) and (b), in this embodiment 1, the sliding member 1f as the nipple 1 is engraved with an external thread portion, and the sliding member 2a as the opposite fastener 2 is engraved with an internal thread portion, These external threaded parts 1f and internal threaded parts 2a are screwed together, and the fastener 2 is rotated relative to the nipple 1 to move it in the hose insertion direction, whereby the inner peripheral surface of the fastener 2 integrally formed The pressing surface part 2b presses the inlet part 3a of the telescoping tube 3, and deform|transforms it in diameter reduction.

[0054] like Figure 4 As shown in (a) and (b), the telescoping tube 3 is composed of an annular protrusion serving as the entrance 3a, a cylindrical telescopic tube having an end surface (end surface on the entrance side) 3b on the side opposite to the hose insertion direction, and an inner perip...

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PUM

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Abstract

Provided is a hose joint by which an insertion position of a front end of a hose is stabilized to thereby enhance the sealing efficiency and a disconnecting strength between the outer surface of a nipple and the hose. When the hose (H) is inserted, the inner diameter of an inlet portion (3a) of an expandable and contractible sleeve (3) opposed to a decreasing diameter portion (1a2) is set to be larger than the outer diameter of the hose (H) which is inserted along the decreasing diameter portion (1a2) of a bulged portion (1a), whereby the front end of the hose (H) is smoothly introduced between the expandable and contractible sleeve (3) and the decreasing diameter portion (1a2) without causing the front end of the hose to butt against the inlet portion (3a) of the expandable and contractible sleeve (3) and can be inserted to a predetermined position. Thereafter, when pressed by a pressing surface portion (2b) in accordance with the axial movement of a fastening tool (2), the inner diameter of the inlet portion (3a) of the expandable and contractible sleeve (3) is set to be smaller than the outer diameter of the hose (H) inserted along the decreasing diameter portion (1a2) of the bulged portion (1a), whereby the hose (H) is held between the inlet portion (3a) of the expandable and contractible sleeve (3) and the decreasing diameter portion (1a2) of the nipple (1).

Description

technical field [0001] The present invention relates to a hose connector used for connecting flexible and easily deformable hoses such as silicone rubber. [0002] Specifically, it relates to a hose connector in which a hose is inserted along the outer peripheral surface of a nipple, and the inner peripheral surface of the hose is compressed against the The outer peripheral surface of the threaded pipe. Background technique [0003] In the past, such a hose connector has the following connector, which includes a nut connected to the second joint configured as a nipple, and is arranged on the internal peripheral surface behind the female thread of the nut and interposed between the front end of the hose. The front ring between the outer peripheral surfaces, the rear ring interposed between the inner peripheral surface of the rear end of the nut and the outer peripheral surface of the hose at a predetermined distance away from the front ring, and the second joint are inserted...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L33/22
CPCF16L33/224
Inventor 泷本伸二
Owner TOYOX CO LTD
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