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Part joint and spray nozzle unit using the part joint

A technology of components and nozzle brackets, applied in the direction of pipes/pipe joints/fittings, applications, passing components, etc., can solve the problems of very simplified structure, and achieve the effects of reduced frictional resistance, simple release, and small screw-in operation

Active Publication Date: 2020-10-16
YAMAHO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The component joint of Patent Document 1 also has a point where it cannot be said that the structure is very simplified.

Method used

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  • Part joint and spray nozzle unit using the part joint
  • Part joint and spray nozzle unit using the part joint
  • Part joint and spray nozzle unit using the part joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] Below, based on the attached Figure 1 to Figure 10 Embodiments of the component joint of the present invention will be described. Figure 1 ~ Figure 4 An example of the spray nozzle unit of the present invention is shown.

[0057] The illustrated spray nozzle unit 1 is constituted by combining a nozzle holder 10 and a nozzle head 20 . The nozzle holder 10 is fixed to the outer periphery of a liquid supply pipe 40 such as a spray bar. The illustrated nozzle holder 10 is a holder in which two members (main body 10 a and pressing member 10 b ) are connected by a threaded shaft (not shown) or the like.

[0058] The liquid inlet 11a provided in the main body 10a of the nozzle holder 10 is inserted into the through hole 41 provided in the peripheral wall of the liquid supply pipe 40, so that the internal flow path of the main body communicates with the internal flow path of the liquid supply pipe 40. In addition, the periphery of the liquid inlet 11 a is sealed liquid-tig...

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PUM

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Abstract

The locking ring (24) is installed on the outer periphery of the union nut (23) in a manner that cannot be relatively rotated or moved axially, and is fixed on the inner peripheral side of the spring ring (24c) supported by the cantilever on the locking ring. The pitch has a mountain-shaped locking portion (24g). The locking portion (24g) can be formed by intersecting the first inclined surface (S1) and the second inclined surface (S2) inclined at an obtuse angle. The outer circumference of the root end side of (14) is provided with at least one engaging protrusion (25) for engaging the locking portion (24g), and when the union nut (23) rotates to the tightening direction, the locking portion (24g) goes over the engaging The first cam surface (25a) of the protrusion (25), when the union nut (23) rotates in the loosening direction, the locking portion (24g) abuts against the second cam surface (25b) of the engaging protrusion (25) to prevent coupling. Loosening of pipe nut (23). The union nut (23) can be replaced by a bottomed cylindrical cap (26).

Description

technical field [0001] The present invention relates to component joints for screw-fitting union nuts, cap nuts to the external threads of pipe ends in such a way as to prevent the union nuts, cap nuts from loosening relative to the external threads of the pipe ends, in particular to stably preventing the On the other hand, it is possible to loosen the end of the entry point, and on the other hand, it is possible to easily release the screw fit, and the spray nozzle unit for spraying liquid that connects the nozzle to the nozzle holder using this component joint. Background technique [0002] The applicant of the present invention has developed a joint that uses a union nut to connect two parts, and can reliably prevent the joint nut from co-rotating due to the relative rotation of the two parts, and commercialized it (refer to the following Patent Document 1). [0003] Co-rotation of the union nut caused by relative rotation of the two parts can lead to loosening of the fa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L19/02B05B1/02A01C23/00A01M7/00B05B15/68
CPCA01M7/00A01C23/00B05B1/02F16L19/02B05B15/68B05B15/65
Inventor 今川良成
Owner YAMAHO IND