CN218031888U - Quick-release joint with double-sealing structure - Google Patents

Abstract

The utility model discloses a quick detach connects of double seal structure, including joint body, preceding cutting ferrule, back cutting ferrule and cutting ferrule nut, the one end of joint body has the screw thread end with cutting ferrule nut matched with, the other end of joint body extends an intubate outward, the periphery of joint body has seted up multichannel external screw thread, the external screw thread is located between screw thread end and intubate, the intubate is overlapped and is equipped with sealing packing ring and spring assembly, back of unscrewing the joint body, sealing packing ring can outwards pop out under the effect of compression spring elasticity power to it maintains to change; the joint body is provided with a circle of fixing rings, the fixing rings are outwards convexly provided with a circle of conical rings, when the joint body is connected and matched, the conical rings can be inserted and pressed to abut against a gap between an external connecting pipeline and the joint body to form a seal, and the conical rings and the sealing packing rings form a double-sealing structure, so that the overall sealing performance of the joint body is further improved.

Description

Quick-release joint with double-sealing structure

Technical Field

The utility model relates to a quick detach connects the field, concretely relates to double seal structure's quick detach connects.

Background

The pipeline system is a carrier of various fluid media, along with the development of science and technology, the application range of the pipeline system is wider and wider, and the connection modes between pipelines are increased and updated continuously. The ferrule type pipe joint is a convenient, reliable and easy-to-mount and dismount connector for medium and high pressure pipelines, and is specifically divided into a single ferrule type pipe joint and a double ferrule type pipe joint.

When the existing double-clamping sleeve pipe joint is connected and matched, the joint of the joint body and an external pipeline is usually sealed only by adopting sealing filler, and when the joint is used in a high-pressure environment, the connection tightness is insufficient; in addition, in the long-term use process, the aging failure phenomenon easily appears in the sealing filler in the pipeline, therefore need carry out periodical replacement to the sealing filler and overhaul, but in the current structure, the sealing filler supports inside the pipeline owing to compress tightly for a long time, when taking out the pipe joint and overhaul the change, the sealing filler glues inside the pipeline easily, is difficult to take out it, changes it, brings a great deal of inconvenience for later stage maintenance.

Therefore, how to solve the above-mentioned deficiencies of the prior art is a subject of the present invention.

Disclosure of Invention

In order to solve the problem, the utility model discloses a double seal structure's quick detach connects.

In order to achieve the above purpose, the utility model provides a following technical scheme: a quick-release joint with a double-seal structure comprises a joint body, a front clamping sleeve, a rear clamping sleeve and a clamping sleeve nut, wherein one end of the joint body is provided with a threaded end matched with the clamping sleeve nut, the other end of the joint body extends outwards to form an insertion pipe, a plurality of external threads are formed in the periphery of the joint body and are positioned between the threaded end and the insertion pipe, a seal packing ring and a spring assembly are sleeved on the insertion pipe, the spring assembly comprises a compression spring, gaskets are connected to two ends of the compression spring respectively, the gaskets are annular, and the diameter of each gasket is the same as that of the seal packing ring;

the periphery that connects the body is fixed with the solid fixed ring of round, gu fixed ring is located between external screw thread and the screw thread end, gu fixed ring is equipped with round toper ring towards one side of external screw thread along its circumference evagination, the diameter of this toper ring reduces from the direction of fixed ring to external screw thread gradually, the movable sleeve is equipped with an elastic backing ring between fixed ring and the external screw thread.

In the scheme, the method comprises the following steps: fixed ring's front and back both sides all are equipped with the extension piece to the evagination, and threaded connection hole has been seted up along the axial of connecting the body on this extension piece.

In the scheme, the method comprises the following steps: the periphery of the conical ring is outwards provided with a circle of baffle ring in a protruding mode, and the outer diameter of the elastic cushion ring is smaller than the inner diameter of the baffle ring.

In the scheme, the method comprises the following steps: the inner diameters of the compression spring and the gasket are larger than the outer diameter of the insertion pipe.

Compared with the prior art, the utility model has the advantages of as follows: the quick-release joint of the utility model is provided with a spring assembly at the sealing packing ring, the spring assembly comprises a compression spring and annular gaskets connected at two ends of the compression spring, when the quick-release joint is connected and matched, the spring assembly is arranged in a pipeline and is pressed against the sealing packing ring to apply elastic force to the sealing packing ring, so that after the joint body is screwed out, the sealing packing ring can be popped out outwards under the action of the elastic force of the compression spring, and the sealing packing ring can be conveniently replaced and maintained; be provided with the solid fixed ring of round on the joint body, outward protruding being equipped with round bell ring on this solid fixed ring, when connecting the cooperation, this bell ring can insert and compress tightly to lean on and form one sealedly in the gap between externally connecting tube and the joint body, constitutes double seal structure with aforementioned sealed packing ring, further improves its holistic leakproofness.

Drawings

FIG. 1 is an exploded view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a perspective view of the fixing ring.

List of reference numerals: 100 joint body, 101 threaded end, 102 cannulation, 103 external threads, 104 retaining ring, 105 resilient backing ring, 106 extension block, 121 seal packing ring, 122 spring assembly, 123 compression spring, 124 shim, 141 taper ring.

Detailed Description

The present invention will be further illustrated with reference to the following specific embodiments, which are to be construed as merely illustrative and not limitative of the remainder of the disclosure. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example (b): referring to fig. 1-3, a quick release joint with a double seal structure comprises a joint body 100, a front ferrule 200, a rear ferrule 300 and a ferrule nut 400, wherein one end of the joint body 100 is provided with a threaded end 101 matched with the ferrule nut 400, the other end of the joint body 100 extends outwards to form an insertion tube 102, the periphery of the joint body 100 is provided with a plurality of external threads 103, the external threads 103 are positioned between the threaded end 101 and the insertion tube 102, when in connection and matching, the ferrule nut 400 is screwed on the threaded end 101 through threads, and the front ferrule 200 and the rear ferrule 300 are positioned in the ferrule nut 400 and are pressed and abutted together;

a sealing packing ring 121 and a spring assembly 122 are sleeved on the insertion pipe 102, the spring assembly 122 comprises a compression spring 123, gaskets 124 are connected to two ends of the compression spring 123, the gaskets 124 are in a ring shape, and the diameter of each gasket 124 is the same as that of the sealing packing ring 121; the sealing packing ring 121 can be made of graphite packing or rubber; during assembly, the sealing packing ring 121 is sleeved on the insertion tube 102 and is pressed in the pipeline to play a sealing role; the inner diameters of the compression spring 123 and the washer 124 are larger than the outer diameter of the cannula 102, so that the spring assembly 122 can move on the cannula 102;

a circle of fixing rings 104 are fixed on the periphery of the joint body 100, the fixing rings 104 are located between the external threads 103 and the threaded ends 101, a circle of conical rings 141 are arranged on one sides, facing the external threads 103, of the fixing rings 104 in a protruding mode along the circumferential direction of the fixing rings, the diameter of each conical ring 141 is gradually reduced from the fixing ring 104 to the external threads 103, an elastic cushion ring 105 is movably sleeved between each fixing ring 104 and the corresponding external threads 103, and the elastic cushion rings 105 can be made of polytetrafluoroethylene materials;

during connection and matching, the spring assembly 122 and the sealing filler ring 121 are jointly sleeved on the insertion pipe 102, the spring assembly 122 is located at the outermost side and is jointly screwed into a pipeline to be connected, and after the joint body 100 is screwed, the conical ring 141 of the fixing ring 104 is pressed against the end part of the pipeline to be connected; because the spring assembly 122 is pressed against the packing ring 121 to apply elastic force to the packing ring 121, after the joint body 100 is unscrewed, the packing ring 121 can be ejected outwards under the elastic force of the compression spring 123, so that the packing ring can be replaced and maintained conveniently; the conical ring 141 can be inserted and pressed against the gap between the pipeline to be connected and the joint body 100 and is matched with the elastic backing ring 105 to form a seal, and forms a double-sealing structure with the sealing packing ring 121, so that the overall sealing performance of the double-sealing structure is further improved;

both sides all are equipped with the extension piece 106 to the epirelief around the solid fixed ring 104, and threaded connection hole has been seted up along the axial of connecting body 100 on this extension piece 106, can be when connecting the cooperation, and a staple bolt is established to the cover on treating the connecting tube, wears to set the screw between the staple bolt and the screw hole on the extension piece 106 of solid fixed ring 104 and further fixes to it is not hard up to avoid connecting body 100 to appear in the long-term use.

The periphery of the conical ring 141 is provided with a circle of baffle ring in an outward protruding way, the outer diameter of the elastic cushion ring 105 is smaller than the inner diameter of the baffle ring, so that the elastic cushion ring 105 can be clamped in the space formed by the baffle ring to avoid the space between the baffle ring and the elastic cushion ring from being exposed outside.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims (4)

1. The utility model provides a quick detach connects of double seal structure, includes and connects body (100), preceding cutting ferrule (200), back cutting ferrule (300) and cutting ferrule nut (400), the one end that connects body (100) have with cutting ferrule nut (400) matched with threaded end (101), the other end that connects body (100) outwards extends an intubate (102), multichannel external screw thread (103) have been seted up to the periphery that connects body (100), external screw thread (103) are located between threaded end (101) and intubate (102), its characterized in that: the insertion tube (102) is sleeved with a sealing packing ring (121) and a spring assembly (122), the spring assembly (122) comprises a compression spring (123), gaskets (124) are connected to two ends of the compression spring (123), the gaskets (124) are annular, and the diameter of each gasket (124) is the same as that of the sealing packing ring (121);

the periphery that connects body (100) is fixed with solid fixed ring of round (104), gu fixed ring (104) are located between external screw thread (103) and threaded end (101), gu fixed ring (104) are equipped with round toper ring (141) towards one side of external screw thread (103) along its circumference is outside protruding, and the diameter of this toper ring (141) reduces from the direction of fixed ring (104) to external screw thread (103) gradually, the movable sleeve is equipped with an elasticity backing ring (105) between solid fixed ring (104) and external screw thread (103).

2. The quick release joint of a double seal structure according to claim 1, characterized in that: the front side and the rear side of the fixing ring (104) are both provided with extension blocks (106) in an outward protruding mode, and threaded connection holes are formed in the extension blocks (106) along the axial direction of the joint body (100).

3. The quick release joint of a double seal structure according to claim 1, characterized in that: the periphery of the conical ring (141) is outwards convexly provided with a ring of baffle ring, and the outer diameter of the elastic cushion ring (105) is smaller than the inner diameter of the baffle ring.

4. The quick release joint of a double seal structure according to claim 2, characterized in that: the inner diameters of the compression spring (123) and the gasket (124) are larger than the outer diameter of the insertion pipe (102).

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