CN102767660A

CN102767660A - Quick connector

Info

Publication number: CN102767660A
Application number: CN2012102849964A
Authority: CN
Inventors: 李成余
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-29
Filing date: 2012-07-29
Publication date: 2012-11-07

Abstract

The invention belongs to the technical field of fluid conveying, relates to a pipe connector and particularly relates to a quick connector. The quick connector comprises a tail seat connector, a first sealing ring, a check valve, a steel ball, a male connector, an outer sleeve spring, an outer spring and a valve body, wherein the check valve comprises a valve core, a second sealing ring and a valve core spring, the valve core is arranged in the interior of the valve body, the second sealing ring is arranged on the inner wall of the tail seat connector, the outer wall of the valve core is in contact with the second sealing ring, the valve core spring is arranged between the lower portion of the valve core and the tail seat connector, the valve core spring is in a compressed state, the first sealing ring is arranged in the interior of the valve core, a transverse through hole is arranged on the side wall of the lower portion of the valve core, and the check valve comprises the valve core, the second sealing ring and the valve core spring. Compared with traditional check valves, the check valve is not provided with a valve seat, so that the structure is simplified and the processing cost is greatly reduced.

Description

Rapid pipe joint

Technical field

The invention belongs to the fluid delivery techniques field, relate to a kind of pipe joint, particularly a kind of rapid pipe joint.

Background technique

Rapid pipe joint is a kind of adaptable across the lens that is connected between pipe fitting and pipe fitting; Its purpose of design is to provide the quick sleeve combined function of joint and pipe fitting; And its basic framework utilizes on usually steel ball blocking mode to realize fixing between joint and pipe fitting; And when separating pipe fitting, can implement fast equally, with convenience and the practicability that realizes that fast quick-detach gets loose between joint and pipe fitting.

Chinese invention patent, the patent No. 201020170004.1, title " rapid pipe joint " discloses a kind of rapid pipe joint.It includes plug and socket, and seal section and restraining groove are wherein arranged on the plug, and overcoat, steel ball, socket, piston shell type valve seat, piston valve core, pipe interface are arranged on the socket; Said spool is the cap tube shape component that an end seals an end opening, and opening end points to plug, and the closed end tube wall surface has through hole; On the said spool cylinder inboard wall convex shoulder that offsets with plug is arranged, outer wall has end face convex shoulder backward, and end face convex shoulder is forward arranged on the valve seat, between two convex shoulders cutoff spring is installed; After the spool back segment outer wall through hole is the sealing surface of spool.

It is thus clear that the check valve structure in the rapid pipe joint of this disclosure of the Invention comprises 4 parts: valve seat, spool, spring, seal ring.Because the structure of safety check is comparatively complicated, number of components is numerous, makes that the manufacturing dimension of safety check is bigger, and then makes the overall structure oversized of rapid pipe joint.This uses novel disclosed check valve structure, also is structure comparatively popular on the market.

Summary of the invention

The object of the present invention is to provide a kind of rapid pipe joint; Safety check in this rapid pipe joint has the size of simple structure, compactness, installation easily; Use the rapid pipe joint of fabrication techniques provided by the invention, when realizing identical rated flow, can have smaller and more exquisite physical dimension.

Rapid pipe joint of the present invention; Comprise: tailstock joint, second seal ring, safety check, steel ball, male connector, outer casing spring, overcoat, valve body; Said safety check comprises: spool, first seal ring and valve core spring; Said spool is arranged at said valve inner, and said second seal ring is set on the tailstock inner nosepiece wall, and the outer wall of said spool and said second seal ring contact; Between the bottom of said spool and said tailstock joint, valve core spring is set, said valve core spring is in compressed state; Said valve core inside is provided with first seal ring, on the said spool lower sides cross through hole is set; When the said tailstock joint of rapid pipe joint down, when male connector is placed up; When said safety check is in sealing state; Said through hole is positioned at the top of said first seal ring, and when said safety check was in connected state, said through hole was positioned at the bottom of said first seal ring.

Preferably, said valve core spring be shaped as volute spring, the boss of the said spool of the small-bore connection bottom of said valve core spring, the heavy caliber of said valve core spring is positioned on the said tailstock joint.

Compare with conventional art, the present invention has following positive role:

1, said safety check comprises: spool, second seal ring and valve core spring, to compare with conventional safety check, and said safety check has saved valve seat, so structure is able to simplify, and processing cost also reduces greatly;

2, the structure of said rapid pipe joint needs customized except said spool, valve core spring; General component and the assembling and constitute rapid pipe joint of the present invention on can extensive use market of other parts; Therefore, can avoid developing new component, realize good technology inheritance.

Description of drawings

Fig. 1 is that rapid pipe joint of the present invention is extracted the structural representation under the state at male connector;

Fig. 2 is the complete section structural representation of rapid pipe joint of the present invention under assembling condition;

Fig. 3 is the 3-D solid structure schematic representation of rapid pipe joint of the present invention under assembling condition;

Fig. 4 is the 3-D solid structure schematic representation of rapid pipe joint of the present invention under the dismounting state.

Among the figure: 3 spools, 5 steel balls, 7 male connectors, 8 outer casing springs, 13 overcoats, 15 valve bodies, 21 second seal rings, 22 first seal rings, 23 valve core springs, 26 is small-bore, 27 heavy calibers, 33 through holes, 34 boss, 120 tailstock joints.

Embodiment

To combine accompanying drawing that the present invention is done to specify further below, but not constitute any restriction of the present invention, the similar elements label is represented similar elements in the accompanying drawing.As stated, the invention provides in a kind of rapid pipe joint, make its simple in structure and easy operating and use more, the present invention is used to realize to the locking of pipe fitting or unclamps.

Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4; The present invention is kind of a rapid pipe joint; It comprises tailstock joint 120, first seal ring 22, safety check, steel ball 5, male connector 7, overcoat 13, external lock sleeve spring 8, valve body 15, and said safety check comprises: spool 3, second seal ring 21 and valve core spring 23, said spool 3 are arranged at said valve body 15 inside; Said second seal ring 21 is set on said tailstock joint 120 inwalls; The outer wall of said spool 3 and said second seal ring 21 contact, and between the bottom of said spool 3 and said tailstock joint 120, valve core spring 23 are set, and said valve core spring 23 is in compressed state; Said spool 3 set inside first seal ring 22 is provided with cross through hole 33 on said spool 3 lower sides.

As shown in Figure 2, held in the rapid pipe joint, said tailstock joint 120 down, said male connector 7 is up.Said tailstock joint 120 that joins with suction tude and the said male connector 7 that joins with steam outlet pipe are installed with said valve body 15 in the outlet side of said tailstock joint 120, this said valve body 15 and tailstock joint 120 are through being threaded.Said spool 3 is set between the inwall of said valve body 15 and tailstock joint 120, and said spool 3 can move forward and backward.Between the rear end of said spool 3 and said tailstock joint 120, be supported with valve core spring 23, the restoring force of valve core spring 23 gives the thrust that spool 3 makes progress.

Offer the through hole 33 of several quantity at said spool 3 sidewalls, to increase the amount of passing through of fluid.When said male connector 7 was not inserted in the said valve body 15, said valve core spring 23 promoted to move on the said spool 3, makes said through hole 33 be positioned at the top of said first seal ring 22, and the passage complete closed has prevented escape of liquid.Said male connector 7 stretches into the endoporus of valve body 15 and contacts with said second seal rings 21 that are positioned at said spool 3 inside; And promote said spool 3 and move downward an end distance and leave; Make said through hole 33 be positioned at the bottom of said first seal ring 22, the fluid passage is communicated with the endoporus of said tailstock joint 120.Fluid from said tailstock joint 120 gets into through said through hole 33, gets into said male connector 7 at last.Said valve core spring 23 be shaped as volute spring, small-bore 26 of said valve core spring 23 connects the boss 34 of said spool 3 bottoms, the heavy caliber 27 of said valve core spring 23 is positioned on the said tailstock joint 120.

At last, should be pointed out that above embodiment only is the more representational example of the present invention.Obviously, the invention is not restricted to the foregoing description, many distortion can also be arranged.Every foundation technical spirit of the present invention all should be thought to belong to protection scope of the present invention to any simple modification, equivalent variations and modification that above embodiment did.

Claims

1. rapid pipe joint; It is characterized in that forming as follows: tailstock joint, second seal ring, safety check, steel ball, male connector, outer casing spring, overcoat, valve body; Said safety check comprises: spool, first seal ring and valve core spring; Said spool is arranged at said valve inner movably, and said second seal ring is set on the tailstock inner nosepiece wall, and the outer wall of said spool and said second seal ring contact; Between the bottom of said spool and said tailstock joint, valve core spring is set, said valve core spring is in compressed state; Said valve core inside is provided with first seal ring, on the said spool lower sides cross through hole is set; When the said tailstock joint of rapid pipe joint down, when male connector is placed up; When said safety check is in sealing state; Said through hole is positioned at the top of said first seal ring, and when said safety check was in connected state, said through hole was positioned at the bottom of said first seal ring.

2. rapid pipe joint according to claim 1 is characterized in that, said valve core spring be shaped as volute spring, the boss of the said spool of the small-bore connection bottom of said valve core spring, the heavy caliber of said valve core spring is positioned on the said tailstock joint.