CN204420379U - Corrugated pipe connector - Google Patents

Corrugated pipe connector Download PDF

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Publication number
CN204420379U
CN204420379U CN201420653027.6U CN201420653027U CN204420379U CN 204420379 U CN204420379 U CN 204420379U CN 201420653027 U CN201420653027 U CN 201420653027U CN 204420379 U CN204420379 U CN 204420379U
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CN
China
Prior art keywords
bellows
joint
gland nut
collar
seal ring
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Active
Application number
CN201420653027.6U
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Chinese (zh)
Inventor
冯余良
周伟冬
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ZHEJIANG DUNYUN INDUSTRIAL CO LTD
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ZHEJIANG DUNYUN INDUSTRIAL CO LTD
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Priority to CN201420653027.6U priority Critical patent/CN204420379U/en
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Publication of CN204420379U publication Critical patent/CN204420379U/en
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Abstract

A kind of corrugated pipe connector, comprising: joint body; Gland nut, the afterbody of gland nut has inward flange, and gland nut is set in bellows joint outer wall, utilizes the outside thread of bellows joint outer wall and joint body to fix; Collar, the external diameter of collar is less than the internal diameter of gland nut and is greater than the internal diameter of inward flange, and described collar is positioned at gland nut and offsets with inward flange, before gland nut is tightened, collar internal diameter is greater than the external diameter of bellows, and after gland nut is tightened, collar internal diameter is less than the external diameter of bellows; Seal ring, described seal ring is arranged at the inside of bellows joint.Because corrugated pipe connector of the present utility model is by blocking bellows at collar, before gland nut is tightened, collar internal diameter is greater than the external diameter of bellows, after gland nut is tightened, collar internal diameter is less than the external diameter of bellows, and bellows can not be pulled out, soundness is high, and structure is simple.

Description

Corrugated pipe connector
Technical field
The utility model relates to a kind of pipe joint technology, especially a kind of corrugated pipe connector.
Background technique
The mode of the conveying such as the traditional combustion gas such as connection LP gas cylinder, gas cylinder, gas cooker articles for use, Natural Water pipeline, sewer pipeline and fire fighting equipment liquid is: connected by rubber pipe and tighten with Drop-proof at the two ends galvanized wire of rubber pipe; There is many defects in this Placement: installs and exchange inconvenience, easily retardance gas circuit or water route under bending state, rubber pipe corrosion-resistant, easily aging, working life is short, easily gas leakage or water leakage phenomenon occurs.
Chinese patent ZL200510013536.3 discloses a kind of rapid pipe joint for corrugated flexible metal tube, adopt and a kind ofly there is certain flexibility can arbitrarily bend and the corrugated flexible metal tube that can not fracture, bellows is connected by a rapid pipe joint, be difficult to pull, but find through practice, the pipe joint of said structure needs sleeve and clamping sleeve, and structure is comparatively complicated, and installing engineering cost is higher, it is not very convenient to install.
Model utility content
Main purpose of the present utility model is to provide a kind of corrugated pipe connector, and structure is simple, installs firmly, and good airproof performance.
For this reason, the utility model embodiment provides a kind of corrugated pipe connector, comprising:
Joint body, described joint body has one can hold longitudinal jack that bellows inserts from back to front, the middle part of described joint body has positioning step, and the afterbody of described joint body is the bellows joint for connecting bellows, and described bellows joint outer wall has outside thread;
Gland nut, the afterbody of described gland nut has inward flange, and gland nut is set in bellows joint outer wall, utilizes the outside thread of bellows joint outer wall and joint body to fix;
Collar, the external diameter of collar is less than the internal diameter of gland nut and is greater than the internal diameter of inward flange, and described collar is positioned at gland nut and offsets with inward flange, before gland nut is tightened, collar internal diameter is greater than the external diameter of bellows, and after gland nut is tightened, collar internal diameter is less than the external diameter of bellows;
Seal ring, described seal ring is arranged at the inside of bellows joint, and be against the positioning step of described joint body, when being passed into after bellows is by gland nut in bellows joint, utilize gland nut to tighten permanent joint body, gland nut and bellows.
Optionally, also comprise: pressure ring, described pressure ring is between seal ring and collar, and when gland nut is tightened mutually with joint body, described seal ring extruding pressure ring, described pressure ring compresses collar.
Optionally, described collar has breach.
Optionally, described gland nut inward flange contacts surface for inclined surface with collar.
Optionally, described seal ring is elastic seal ring.
Optionally, the section shape of described seal ring is shape or L shape.
Optionally, described seal ring is tubular seals circle.
Optionally, after joint body, gland nut are tightened, the ripple of described seal ring and bellows fits.
Compared with prior art, the utility model at least has following technique effect:
Because corrugated pipe connector of the present utility model is by blocking bellows at collar, before gland nut is tightened, collar internal diameter is greater than the external diameter of bellows, after gland nut is tightened, collar internal diameter is less than the external diameter of bellows, and bellows can not be pulled out, soundness is high, and structure is simple.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the corrugated pipe connector of the utility model embodiment.
Embodiment
Set forth a lot of detail in the following description so that fully understand the utility model.But the utility model can be much different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public specific embodiment.
The utility model embodiment provide firstly a kind of corrugated pipe connector, please refer to Fig. 1, comprising:
Joint body 11, described joint body 11 has one can hold longitudinal jack that bellows inserts from back to front, the middle part of described joint body 11 has an inside positioning step 18, the internal diameter of described positioning step 18 is less than the outdoor scene of seal ring 13, also the external diameter of bellows 17 is less than, make bellows 17 and the spacing afterbody at joint body 11 of seal ring 13, the afterbody of described joint body 11 is the bellows joint 12 for connecting bellows, and described bellows joint 12 outer wall has outside thread;
Gland nut 16, the afterbody of described gland nut 16 has inward flange, and gland nut 16 is set in bellows joint 12 outer wall, the outside thread of bellows joint 12 outer wall and joint body 11 is utilized to fix, the internal diameter of described gland nut 16 inward flange is a bit larger tham the external diameter of bellows 17, makes bellows 17 can enter in bellows joint 12 through gland nut 16;
Collar 15, the external diameter of collar 15 is less than the internal diameter of gland nut 16 and is greater than the internal diameter of inward flange, and described collar 15 to be placed in gland nut 16 and to offset jail with inward flange;
Seal ring 13, described seal ring 13 is arranged at the inside of bellows joint 12, and be against the positioning step 18 of described joint body 11, the internal diameter of described seal ring 13 is a bit larger tham the external diameter of bellows 17, make when bellows 17 is inserted into the inside of bellows joint 12, seal ring 13 is arranged between bellows 17 and bellows joint 12, significantly can improve sealing.
Pressure ring 14, described pressure ring 14 is between seal ring 14 and collar 15, when gland nut 16 is tightened mutually with joint body 11, described seal ring 14 extrudes pressure ring 14, described pressure ring 14 compresses collar 15, and the internal diameter of collar 15 is shunk, and collar 15 can be stuck in the indent circle of bellows 17, thus fix bellows 17, make bellows 17 be not easy to be pulled out.
In the present embodiment, described collar 15 for section be circular annulus, described gland nut 16 inward flange contacts surface for inclined surface with collar 15, before gland nut 16 is tightened, collar 15 internal diameter is greater than the external diameter of bellows 17, after gland nut 16 is tightened, extruded by pressure ring 14 pairs of collars 15, collar 15 can be out of shape slightly, inwardly shrink, collar 15 internal diameter is less than the external diameter of bellows 17, and collar 15 can be stuck in the indent circle of bellows 17.
In other embodiments, also can, without pressure ring, utilize seal ring to extrude collar, collar can be out of shape slightly, inwardly shrink, collar can be stuck in the indent circle of bellows.
In other embodiments, described collar has breach, and the length of described breach is less than 10 millimeters, makes after gland nut is tightened, and to collar extruding, collar is inwardly shunk, and internal diameter diminishes, and collar can be stuck in the indent circle of bellows.
In the present embodiment, described seal ring 13 is elastic seal ring, such as rubber seal, extrude in the process that described rubber seal can be tightened at gland nut, extruded by pressure ring 14 pairs of collars 15 by seal ring 13 on the one hand, collar 15 is made to block bellows 17, work as joint body on the other hand, after gland nut is tightened, described seal ring 13 deforms, fill full and between bellows 17 and bellows joint 12 space, seal ring 13 is made also to become corrugated, fit with the ripple of bellows 17, fastness can be improved further, full and between bellows 17 and bellows joint 12 space filled by seal ring 13 simultaneously, greatly can improve sealing.
In the present embodiment, the section shape of described seal ring 13 is shape or L shape.In other embodiments, described seal ring can also be tubular seals circle, and after joint body, gland nut are tightened, described tubular seals circle also can deform, and fills full and between bellows and bellows joint space.
Although last it is noted that the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment, the scope that therefore protection domain of the present utility model should define with the utility model claim is as the criterion.

Claims (7)

1. a corrugated pipe connector, is characterized in that, comprising:
Joint body, described joint body has one can hold longitudinal jack that bellows inserts from back to front, the middle part of described joint body has positioning step, and the afterbody of described joint body is the bellows joint for connecting bellows, and described bellows joint outer wall has outside thread;
Gland nut, the afterbody of described gland nut has inward flange, and gland nut is set in bellows joint outer wall, utilizes the outside thread of bellows joint outer wall and joint body to fix;
Collar, the external diameter of collar is less than the internal diameter of gland nut and is greater than the internal diameter of inward flange, and described collar is positioned at gland nut and offsets with inward flange, before gland nut is tightened, collar internal diameter is greater than the external diameter of bellows, and after gland nut is tightened, collar internal diameter is less than the external diameter of bellows;
Seal ring, described seal ring is arranged at the inside of bellows joint, and be against the positioning step of described joint body, when being passed into after bellows is by gland nut in bellows joint, utilize gland nut to tighten permanent joint body, gland nut and bellows.
2. corrugated pipe connector as claimed in claim 1, is characterized in that, also comprise: pressure ring, and described pressure ring is between seal ring and collar, and when gland nut is tightened mutually with joint body, described seal ring extruding pressure ring, described pressure ring compresses collar.
3. corrugated pipe connector as claimed in claim 1, it is characterized in that, described collar has breach.
4. corrugated pipe connector as claimed in claim 1, is characterized in that, described gland nut inward flange contacts surface for inclined surface with collar.
5. corrugated pipe connector as claimed in claim 1, it is characterized in that, described seal ring is elastic seal ring.
6. corrugated pipe connector as claimed in claim 1, it is characterized in that, described seal ring is tubular seals circle.
7. corrugated pipe connector as claimed in claim 1, it is characterized in that, after joint body, gland nut are tightened, the ripple of described seal ring and bellows fits.
CN201420653027.6U 2014-11-04 2014-11-04 Corrugated pipe connector Active CN204420379U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420653027.6U CN204420379U (en) 2014-11-04 2014-11-04 Corrugated pipe connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420653027.6U CN204420379U (en) 2014-11-04 2014-11-04 Corrugated pipe connector

Publications (1)

Publication Number Publication Date
CN204420379U true CN204420379U (en) 2015-06-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420653027.6U Active CN204420379U (en) 2014-11-04 2014-11-04 Corrugated pipe connector

Country Status (1)

Country Link
CN (1) CN204420379U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110337557A (en) * 2017-01-27 2019-10-15 奥美嘉福来克斯公司 Accessory for medical pipeline system
CN110762597A (en) * 2019-01-31 2020-02-07 山东大学 Carbon thermal infrared electric heating device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110337557A (en) * 2017-01-27 2019-10-15 奥美嘉福来克斯公司 Accessory for medical pipeline system
CN110762597A (en) * 2019-01-31 2020-02-07 山东大学 Carbon thermal infrared electric heating device
CN110762597B (en) * 2019-01-31 2021-03-23 山东大学 Carbon thermal infrared electric heating device

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