CN209068029U - A kind of reusable duct test connector - Google Patents

Abstract

The reusable duct test connector of one kind disclosed by the utility model, including plug, hold-fast ring and gripping sleeve, the plug includes the blocked shot being inserted into developmental tube and the limit plate that blocked shot outer end is arranged in, the hold-fast ring is socketed on developmental tube, the outside of hold-fast ring is tapered surface, the gripping sleeve is socketed on the outside of hold-fast ring, the gripping sleeve is connect by connector with limit plate after being pressed on hold-fast ring, existing disposable plug is changed to reusable plug by the utility model, cooperated by the tapered surface of gripping sleeve and hold-fast ring and clamps hold-fast ring, the clamping of hold-fast ring is realized in the connection by gripping sleeve and plug self-locking, tightness is strong, it is dismounted using connector, it is reusable, it is easy to operate, it avoids wasting.

Description

A kind of reusable duct test connector

Technical field

The utility model relates to tube performance testing experiment technical field of tools, more particularly to a kind of reusable pipe Road test joint.

Background technique

Consumptive gas or the liquid such as natural gas, petroleum, this gas or liquid are be unable to do without in modern daily life Body needs pipeline to carry out amount transport, during transportation, needs to guarantee the tightness and service life of this pipeline, therefore need Will the performances such as sealing, intensity, toughness to pipeline tested the safe handling to ensure pipeline, when carrying out pressure etc. to pipeline When performance test, need to block the one or both ends of pipeline the airtightness to guarantee pipeline, existing closure mode is to utilize The end of plug and pipeline is pressed and is sealed by machine, and after the completion of test, this plug is difficult to disassemble, and cannot repeat benefit With causing many wastings of resources；

Therefore, it is necessary to the easy-to-dismount duct test connectors that one kind can reuse.

Utility model content

The purpose of this utility model is that providing a kind of reusable pipeline examination in place of avoiding the deficiencies in the prior art Connector is tested, to effectively solve the shortcomings of the prior art.

To achieve the above object, the technical solution that the utility model is taken are as follows: the reusable duct test of one kind connects Head, including plug, hold-fast ring and gripping sleeve, the plug include the blocked shot being inserted into developmental tube and the limit that blocked shot outer end is arranged in Position plate, the hold-fast ring are socketed on developmental tube, and the outside of hold-fast ring is tapered surface, the side of the outer radial pipeline outer end of hold-fast ring To being gradually increased, the gripping sleeve is socketed on the outside of hold-fast ring, and the internal diameter of gripping sleeve is adapted with the outer diameter of hold-fast ring, and described armful The length of tight ring is greater than the length of gripping sleeve, and hold-fast ring is withstood on limit plate, and the gripping sleeve passes through company after being pressed on hold-fast ring Fitting is connect with limit plate；

Suit is provided with several inner wall sealing rings for withstanding test inside pipe wall, the inside of the limit plate on the blocked shot The outer end of compatibility test pipe is provided with end-face seal ring.

Further, it is provided with to be intended to force on the plug and holds the mobile compression dress in the circumferential direction far from limit plate tightly It sets, the pressing device includes the first piston room and second piston room being connected, between first piston room and second piston room Filled with hydraulic oil, the cross-sectional area of first piston room is less than the cross-sectional area of second piston room, the first piston room setting In blocked shot, first piston room front end is equipped with first piston, and the second piston room is provided in limit plate inner circumferential Several, second piston room front end is provided with piston ring, and the rear portion of piston ring is circumferentially provided with several cooperation second piston rooms Second piston, the piston ring are withstood on hold-fast ring, and the front end of the first piston is provided with compatible with test bore Sealing plate.

Further, the connector is bolt, and fitted bolt is provided with mounting hole on the gripping sleeve and limit plate.

The above-mentioned technical proposal of the utility model has the advantages that the utility model by existing disposable plug It is changed to reusable plug, is cooperated by the tapered surface of gripping sleeve and hold-fast ring and clamps hold-fast ring, passing through gripping sleeve Connection with plug is self-locking to the clamping realization of hold-fast ring, and tightness is strong, is dismounted using connector, reusable, It is easy to operate, it avoids wasting.

Detailed description of the invention

Fig. 1 is the cross-sectional view that the utility model embodiment does not include pressing device；

Fig. 2 is the cross-sectional view that the utility model embodiment includes pressing device.

Specific embodiment

The embodiments of the present invention is described in further detail with reference to the accompanying drawings and examples.Following embodiment For illustrating the utility model, but cannot be used to limit the scope of the utility model.

In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term The orientation of the instructions such as "upper", "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot It is construed as a limitation of the present invention.In the description of the present invention, it should be noted that unless otherwise specific regulation And restriction, term " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through It is indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition Concrete meaning.

As shown in Figs. 1-2, the reusable duct test connector of one kind of the present embodiment, including plug 1, hold-fast ring 2 With gripping sleeve 3, plug 1 includes the blocked shot 11 that is inserted into developmental tube and limit plate 12 that 11 outer end of blocked shot is arranged in, and 2 sets of hold-fast ring Connect on developmental tube 4, the outside of hold-fast ring 2 is tapered surface, the direction of the pipeline outer end of the outer radial developmental tube 4 of hold-fast ring 2 by Cumulative big, gripping sleeve 3 is socketed in 2 outside of hold-fast ring, and the internal diameter of gripping sleeve 3 is adapted with the outer diameter of hold-fast ring 2, hold-fast ring 2 Length is greater than the length of gripping sleeve 3, and hold-fast ring 2 is withstood on limit plate 12, and gripping sleeve 3 passes through connector 5 after being pressed on hold-fast ring 2 It is connect with limit plate 12；Preferably, connector 5 is bolt, and fitted bolt is provided with installation on gripping sleeve 3 and limit plate 12 Hole；

Preferably, the section of hold-fast ring 2 is C-shaped, in order to which the clamping of hold-fast ring 2 is contracted on developmental tube 4 by gripping sleeve 3；

Suit is provided with several inner wall sealing ring 11a for withstanding 4 inner wall of developmental tube, the inside of limit plate 12 on blocked shot 11 The outer end of compatibility test pipe 4 is provided with end-face seal ring 12a.

Gripping sleeve 3 is pressed on hold-fast ring 2 and is adapted with the tapered surface 2a of hold-fast ring 2, and gripping sleeve 3 is connect with limit plate 12 When, gripping sleeve 3 is mobile to the direction of limit plate 12, and hold-fast ring 2 withstands on limit plate 12 and can not move simultaneously with gripping sleeve 3, So the inner surface of gripping sleeve 3 compresses hold-fast ring 2, developmental tube 4 is pressed on blocked shot 11, gripping sleeve 3 is apart from limit The more nearly then hold-fast ring 2 of plate 12 compresses more, i.e., this connector can be pressed abd fixed on developmental tube 4 by connector 5, operation Conveniently, when disassembly, connector 5 is unclamped, gripping sleeve 3 is detached from hold-fast ring 2, hold-fast ring 2 unclamps, then successively by plug 1, holding Ring 2 and gripping sleeve 3 are removed.

Preferably, the compression dress for being intended to force hold-fast ring 2 mobile to the direction far from limit plate 12 is provided on plug 1 Set 6, hold-fast ring 2 is mobile to the direction (i.e. 3 internal diameter of gripping sleeve reduce direction) far from limit plate 12, can make hold-fast ring 2 into One step holds developmental tube 4 tightly, avoids the connection of gripping sleeve 3 and limit plate 12 distance insufficient, causes the holding frictional force of hold-fast ring 2 not Foot, the situation that hold-fast ring 2, gripping sleeve 3 and plug 1 can be ejected together when 4 pressure of developmental tube is excessive；

Pressing device 6 includes the first piston room 61 and second piston room 62 being connected, and first piston room 61 and second live It fills in and is filled with hydraulic oil between room 62, the cross-sectional area of first piston room 61 is less than the cross-sectional area of second piston room 62, and first Piston chamber 61 is arranged in blocked shot 11, and 61 front end of first piston room is equipped with first piston 63, and second piston room 62 is limiting Position 12 inner circumferential of plate is provided with several, and 62 front end of second piston room is provided with piston ring 64, and the rear portion of piston ring 64 is circumferentially set It is equipped with the second piston 65 of several cooperation second piston rooms 62, piston ring 64 is withstood on hold-fast ring 2, and the front end of first piston 63 is set It is equipped with sealing plate 631 compatible with 4 internal diameter of developmental tube；

When pressure increases in developmental tube 4, the internal pressure of developmental tube 4 can force sealing plate 631 mobile to the direction of blocked shot 11, First piston 63 can compress first piston room 61, and the hydraulic oil between first piston room 61 and second piston room 62 can pass pressure Second piston room 62 is passed, since the cross-sectional area of first piston room 61 is less than the cross-sectional area of second piston room 62, according to " pressure Power=pressure/cross-sectional area ", the pressure that second piston room 62 passes to second piston 65 (piston ring 64) is larger, piston ring 64 Pressure is passed into hold-fast ring 2, the direction for reducing hold-fast ring 2 to 3 internal diameter of gripping sleeve is mobile, to keep hold-fast ring 2 further Hold developmental tube 4 tightly.

The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustively or to incite somebody to action The utility model is limited to disclosed form.Many modifications and variations are aobvious and easy for the ordinary skill in the art See.Embodiment was chosen and described in order to better illustrate the principle and practical application of the utility model, and makes this field Those of ordinary skill it will be appreciated that the utility model to designing various embodiments suitable for specific applications with various modifications.

Claims (3)

1. a kind of reusable duct test connector, it is characterised in that: described stifled including plug, hold-fast ring and gripping sleeve Head includes the blocked shot being inserted into developmental tube and the limit plate that blocked shot outer end is arranged in, and the hold-fast ring is socketed on developmental tube, is embraced The outside of tight ring is tapered surface, and the direction of the outer radial pipeline outer end of hold-fast ring is gradually increased, and the gripping sleeve is socketed in holding On the outside of ring, the internal diameter of gripping sleeve is adapted with the outer diameter of hold-fast ring, and the length of the hold-fast ring is greater than the length of gripping sleeve, is held tightly Ring is withstood on limit plate, and the gripping sleeve is connect by connector with limit plate after being pressed on hold-fast ring；

Suit is provided with several inner wall sealing rings for withstanding test inside pipe wall, the fit inside of the limit plate on the blocked shot The outer end of developmental tube is provided with end-face seal ring.

2. the reusable duct test connector of one kind according to claim 1, it is characterised in that: set on the plug It is equipped with to be intended to force and holds the mobile pressing device in the circumferential direction far from limit plate tightly, the pressing device includes being connected First piston room and second piston room are filled with hydraulic oil, the cross of first piston room between first piston room and second piston room Sectional area is less than the cross-sectional area of second piston room, and the first piston room is arranged in blocked shot, the cooperation of first piston room front end It is provided with first piston, the second piston room is provided with several in limit plate inner circumferential, and second piston room front end is provided with Piston ring, the rear portion of piston ring are circumferentially provided with the second piston of several cooperation second piston rooms, and the piston ring withstands on holding On ring, the front end of the first piston is provided with sealing plate compatible with test bore.

3. the reusable duct test connector of one kind according to claim 1, it is characterised in that: the connector is Bolt, fitted bolt is provided with mounting hole on the gripping sleeve and limit plate.