CN103307392A

CN103307392A - Quick coupling

Info

Publication number: CN103307392A
Application number: CN2013102614906A
Authority: CN
Inventors: 楼仲宇
Original assignee: ZHEJIANG SONGQIAO PNEUMATIC AND HYDRAULIC Co Ltd
Current assignee: ZHEJIANG SONGQIAO PNEUMATIC AND HYDRAULIC Co Ltd
Priority date: 2013-06-26
Filing date: 2013-06-26
Publication date: 2013-09-18

Abstract

The invention relates to the field of quick fluid coupling manufacture, in particular to a quick coupling. The quick coupling comprises a male coupling and a female coupling, wherein the female coupling comprises a check valve core; a circular cone is formed at the front end of the check valve core, the rear end of the circular cone is connected with a fluid channel through a cylinder, and the position where the fluid channel is connected with the cylinder is a cone; the check valve core is movably mounted in a valve base; a spring A is arranged between the check valve core and the valve base; a connecting body is mounted at the front end of the valve base, a female coupling body is mounted at the rear end of the valve base, and an outer sleeve is arranged between the female coupling body and the connecting body; a spring B is arranged between the outer sleeve and the connecting body; a steel ball is arranged at the upper concave part of the female coupling body and connected with the outer sleeve; a guide sleeve is arranged on the outer side of the check valve core, and a sealing gasket is arranged between the guide sleeve and the check valve core; a retaining groove for clamping the steel ball is formed in the outer side of the male coupling. The quick coupling has the benefits of large circulation area, smooth channel, small resistance, high flow rate, large flow and high reliability.

Description

A kind of rapid pipe joint

Technical field

The present invention relates to fluid quick joint and make field, especially a kind of rapid pipe joint.

Background technique

Along with China's science and technology development, control is widely used automatically.Because rapid pipe joint has and system pipeline is connected characteristics such as efficient and convenient, safe and reliable and be widely used in package packing machine, medical machinery, electronic equipment, welding such as establish at all kinds of electromechanical equipments.Rapid pipe joint is a kind ofly can connect or disconnect gas piping fast, realizes the special connection set that pipeline connects fast, disconnects, and it has quick plug-in mounting, disconnects inner unidirectional check function afterwards.The check valve structure of rapid pipe joint and runner design are the rapid pipe joint most important parts, and the check valve structure mode has directly determined usability, negotiability, reliability and the quality of product of rapid pipe joint.Existing rapid pipe joint is made up of negative joint and male connector two-part, the rapid pipe joint negative joint is provided with check device, the male connector front end is opened safety check when inserting male connector in the negative joint when pipeline connects, and male connector inserts and puts in place, outer lock set is pinned male connector, and pipeline is connected.When male connector withdraws from, the overcoat cynomorium songaricum joint that promotes negative joint withdraws from, closure of check ring, pipeline disconnect.Check device is made up of non-return valve core, Returnning spring, existing non-return valve core is cylindrical, its front end is flat taper, outer radius is established seal groove dress O type shape seal ring, advancing some apertures near seal ring place circumference uniform distribution is runner, is attached to valve seat conical surface upper runner at action of reset spring lower valve core seal ring and is in closed condition.Its front end supports spool when male connector inserts, and the promotion spool overcomes spring force and opens safety check, and runner is connected.This structure is owing to be subjected to the limiting orifice of valve core diameter and intensity can not bore big, therefore the runner circulation area is very little, and runner meets at right angles, not smoothly cause that product runner circulating resistance is big, circulation area is little, the product pressure loss is big, flow is little, has a strong impact on using effect and the product performance of rapid pipe joint.

Summary of the invention

In order to solve the not good technical problem of above-mentioned negotiability, the invention provides a kind of rapid pipe joint.

Technological scheme of the present invention is as follows:

A kind of rapid pipe joint, comprise male connector and negative joint, described negative joint comprises non-return valve core, described non-return valve core front end is cone, described cone rear end connects the fluid passage by cylindrical body, described fluid passage and cylindrical body joint are cone, non-return valve core is movably arranged in the valve seat, be provided with spring A between non-return valve core and the valve seat, described valve seat front end is installed connecting body, and the negative joint body is installed in the valve seat rear end, is provided with overcoat between described negative joint body and the connecting body, be provided with spring B between described overcoat and the connecting body, described negative joint body upper recess is provided with steel ball, and steel ball is connected with overcoat, and the non-return valve core outside is provided with guide pin bushing, be provided with sealing gasket between described guide pin bushing and the non-return valve core, the male connector outside is provided with in order to block the locking trough of steel ball.

Use technological scheme of the present invention, circulation area is big, and the runner slyness is smooth and easy, and resistance is little, and flow velocity is fast, and flow is big, beautiful shape, reliability height.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is the structural representation of negative joint of the present invention.

Embodiment

The invention will be further described below in conjunction with drawings and Examples.

Embodiment

As Fig. 1, a kind of rapid pipe joint shown in 2, comprise male connector 1 and negative joint, described negative joint comprises non-return valve core 12, described non-return valve core 12 front ends are cone, the cone position is considered as non-return valve core 12 front ends, this structure intake resistance is little, the linear slyness, flow velocity is big, the pressure loss is little, the good stroke of non-return valve core 12 guidance quality is big, negotiability is strong, flow is big, cone is provided with the O RunddichtringO, it is little to touch area, good seal performance, described cone rear end connects the fluid passage by cylindrical body, described fluid passage and cylindrical body joint are cone, the fluid passage is connected by the support and connection body with non-return valve core 12 rear ends, adopt two strong points to connect, the whole hollow outs of remaining part, circulation area is big, resistance is little, and non-return valve core 12 is movably arranged in the valve seat 9, is provided with spring A8 between non-return valve core 12 and the valve seat 9, described valve seat 9 front ends are installed connecting body 13, negative joint body 2 is installed in valve seat 9 rear ends, is provided with overcoat 3 between described negative joint body 2 and the connecting body 13, is provided with spring B 6 between described overcoat 3 and the connecting body 13, described negative joint body 2 upper recess are provided with steel ball 4, steel ball 4 is connected with overcoat 3, and steel ball 4 can fall, and non-return valve core 12 outsides are provided with guide pin bushing 5, be provided with sealing gasket 7 between described guide pin bushing 5 and the non-return valve core 12, male connector 1 outside is provided with in order to block the locking trough of steel ball 4.

During use, when rapid pipe joint connects male connector 1 is inserted negative joint, male connector 1 front end enters guide pin bushing 5 promotion sealing gaskets 7 and non-return valve core 12 moves, overcome spring force, non-return valve core 12 separates with valve seat 9 conical surfaces, and steel ball 4 unclamps overcoat 3 after entering in male connector 1 locking trough, and spring B 6 is pushed into locked position with overcoat 3, pipeline connects, and the fluid passage is connected.Sun connects 1 need withdraw from the time, promotes overcoat 3 cynomorium songaricum joints 1 and ejects automatically under the spring force effect, and non-return valve core 12 is closed, and pipeline disconnects.

Claims

1. rapid pipe joint, comprise male connector (1) and negative joint, it is characterized in that: described negative joint comprises non-return valve core (12), described non-return valve core (12) front end is cone, described cone rear end connects the fluid passage by cylindrical body, described fluid passage and cylindrical body joint are cone, non-return valve core (12) is movably arranged in the valve seat (9), be provided with spring A(8 between non-return valve core (12) and the valve seat (9)), described valve seat (9) front end is installed connecting body (13), negative joint body (2) is installed in valve seat (9) rear end, be provided with overcoat (3) between described negative joint body (2) and the connecting body (13), be provided with spring B (6) between described overcoat (3) and the connecting body (13), described negative joint body (2) upper recess is provided with steel ball (4), steel ball (4) is connected with overcoat (3), non-return valve core (12) outside is provided with guide pin bushing (5), be provided with sealing gasket (7) between described guide pin bushing (5) and the non-return valve core (12), male connector (1) outside is provided with in order to block the locking trough of steel ball (4).