CN204459136U - A kind of unthreaded hole plug for pressure test - Google Patents

A kind of unthreaded hole plug for pressure test Download PDF

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Publication number
CN204459136U
CN204459136U CN201420829824.5U CN201420829824U CN204459136U CN 204459136 U CN204459136 U CN 204459136U CN 201420829824 U CN201420829824 U CN 201420829824U CN 204459136 U CN204459136 U CN 204459136U
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CN
China
Prior art keywords
unthreaded hole
bolt
rubber ring
sleeve
plug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201420829824.5U
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Chinese (zh)
Inventor
雷林光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU DAIWA THERMOMAGNETIC ELECTRONIC CO Ltd
Hangzhou Dahe Thermo Magnetics Co Ltd
Original Assignee
HANGZHOU DAIWA THERMOMAGNETIC ELECTRONIC CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by HANGZHOU DAIWA THERMOMAGNETIC ELECTRONIC CO Ltd filed Critical HANGZHOU DAIWA THERMOMAGNETIC ELECTRONIC CO Ltd
Priority to CN201420829824.5U priority Critical patent/CN204459136U/en
Application granted granted Critical
Publication of CN204459136U publication Critical patent/CN204459136U/en
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Abstract

The utility model discloses a kind of unthreaded hole plug for pressure test, comprise bolt, be sheathed on rubber ring on bolt successively with sleeve and be connected with bolt and the nut of clamp sleeve, one side end of sleeve has cone-shaped top surface and the rubber ring that reclines, plug of the present utility model directly embeds in unthreaded hole, utilize the nut on bolt and promote sleeve reach, barrel forward end cone-shaped top surface is made to extrude rubber ring, cause rubber ring radial deformation and elasticity external drum, thus the sealing reached unthreaded hole, the simply handy and highly versatile of plug, improve the leakage efficiency of unthreaded hole and effect is better.

Description

A kind of unthreaded hole plug for pressure test
Technical field
The utility model relates to a kind of plug, refer more particularly to a kind of for pressure test, simply handy and highly versatile unthreaded hole plug.
Background technique
When doing pressure test for component, following two kinds of modes are adopted usually to the shutoff of unthreaded hole, one is with end face seal, as shown in Figure 1, another kind is with the sealing of unthreaded hole self plug, as shown in Figure 2, but these two kinds of modes all need the screw using side to be fixed when arranging blank flange or plug, as unthreaded hole periphery does not have available screw or fixed structure, then need to adopt the large-scale tool such as support or base plate to fix flange or plug, cause complicated integral structure, cost higher and use loaded down with trivial details, efficiency is lower, cost is higher.
Model utility content
Available fixing threaded hole is not had to cause unthreaded hole shutoff not easily and the higher technical problem of cost at unthreaded hole periphery when the utility model mainly solves existing pressure test; Provide a kind of for pressure test, simply handy and highly versatile unthreaded hole plug.
In order to solve the technical problem of above-mentioned existence, the utility model mainly adopts following technical proposals:
A kind of unthreaded hole plug for pressure test of the present utility model, for the shutoff of unthreaded hole, described plug comprises bolt, the rubber ring be sheathed on successively on bolt is connected and the nut of clamp sleeve with sleeve and with described bolt thread, described bolt head external diameter is identical with described sleeve outer diameter and match with described unthreaded hole aperture, described rubber ring external diameter and described unthreaded hole aperture match, bolt, rubber ring and sleeve can embed in unthreaded hole, one side end of described sleeve has cone-shaped top surface and the rubber ring that reclines, can directly plug be embedded in unthreaded hole during unthreaded hole shutoff, utilize the tightening nut on bolt to screw and promote sleeve reach, make the cone-shaped top surface extruding rubber ring of barrel forward end, cause the radial deformation of rubber ring and elasticity external drum, thus the sealing reached unthreaded hole, the simply handy and highly versatile of plug, improve the leakage efficiency of unthreaded hole and effect is better.
As preferably, described bolt head external diameter coordinates with described unthreaded hole bore clearance, and unthreaded hole aperture is greater than bolt head external diameter 0.1 ~ 0.2mm, and the bolt of Spielpassung and sleeve all can embed in unthreaded hole easily.
As preferably, described bolt tail is provided with regular polygon dop or regular polygon shrinkage pool, the clamping anti-rotation to bolt when evagination dop or the shrinkage pool that caves in are convenient to shutoff.
As preferably, the tapering of described sleeve cone-shaped top surface is 8 ° ~ 10 °.
As preferably, described rubber ring external diameter coordinates with described unthreaded hole bore clearance, and unthreaded hole aperture is greater than seal ring external diameter 0.05 ~ 0.1mm, and the rubber ring of Spielpassung can conveniently embed in unthreaded hole, then can utilize the elasticity extrusion-deformation of rubber during shutoff, reach the effect of sealing.
As preferably, described rubber ring material is nitrile rubber or fluorine rubber, can adopt when Pressure of Ambient Temperature is tested the nitrile rubber that price is lower, then can adopt resistant to elevated temperatures fluorine rubber when Apparatus for Pressure at high-temp.
The beneficial effects of the utility model are: can directly embed in unthreaded hole by plug during unthreaded hole shutoff, utilize the tightening nut on bolt to screw and promote sleeve reach, make the cone-shaped top surface extruding rubber ring of barrel forward end, cause the radial deformation of rubber ring and elasticity external drum, thus the sealing reached unthreaded hole, the simply handy and highly versatile of plug, improves the leakage efficiency of unthreaded hole and effect is better.
Accompanying drawing explanation
Fig. 1 is the end face seal schematic diagram of prior art.
Fig. 2 is the hole sealing schematic diagram of prior art.
Fig. 3 is a kind of structural representation of the utility model unthreaded hole plug.
Fig. 4 is the tube-in-tube structure schematic diagram in Fig. 3.
1. unthreaded holes, 2. bolt, 3. rubber ring, 4. sleeve in figure, 5. nut .6. cone-shaped top surface, 7. dop.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of unthreaded hole plug for pressure test of the present embodiment, for the shutoff of unthreaded hole 1, plug comprises bolt 2, be set in rubber ring 3 on bolt successively with sleeve 4 and be connected with bolt thread and the nut 5 of clamp sleeve, bolt head external diameter is identical with sleeve outer diameter and coordinate with unthreaded hole bore clearance, bolt head external diameter is less than unthreaded hole aperture 0.2mm, rubber ring material is nitrile rubber, rubber ring external diameter also coordinates with unthreaded hole bore clearance and is less than unthreaded hole aperture 0.1mm, Spielpassung is convenient to bolt, seal ring and sleeve embed unthreaded hole, a recline side end of seal ring of sleeve has cone-shaped top surface 6, the tapering of cone-shaped top surface is 10 °, bolt tail is also designed with orthohexagonal dop 7, be convenient to the clamping of instrument.
When Pressure of Ambient Temperature is tested, rubber ring and sleeve are inserted on the screw rod of bolt successively, and nut of screwing on, then plug to be embedded in unthreaded hole and to control depth, the regular hexagon dop utilizing instrument to clamp bolt tail prevents bolt from rotating, fastening nut also promotes sleeve reach, the cone-shaped top surface of barrel forward end is made to push rubber ring, rubber ring is squeezed and causes radial deformation and elasticity external drum, the outer edge surface of rubber ring is tightly fitted unthreaded hole hole wall, the front-end face laminating bolt head inner side end of rubber ring, thus the sealing reached unthreaded hole, plug does not need support or flange, simply handy and highly versatile, improve the leakage efficiency of unthreaded hole and effect is better.
In description of the present utility model, technical term " on ", D score, " front ", " afterwards ", " interior ", " outward " etc. represent that direction or position relationship are based on direction shown in the drawings or position relationship, be only for convenience of description with understand the technical solution of the utility model, more than illustrate and not restriction has been done to the utility model, the utility model is also not limited only to the citing of above-mentioned explanation, the change that those skilled in the art make in essential scope of the present utility model, remodeling, increase or replace, all should be considered as protection domain of the present utility model.

Claims (6)

1. the unthreaded hole plug for pressure test, for the shutoff of unthreaded hole (1), it is characterized in that: described plug comprises bolt (2), be sheathed on rubber ring (3) on bolt successively with sleeve (4) and be connected with described bolt thread and the nut of clamp sleeve (5), described bolt head external diameter is identical with described sleeve outer diameter and match with described unthreaded hole aperture, described rubber ring external diameter and described unthreaded hole aperture match, bolt, rubber ring and sleeve can embed in unthreaded hole, one side end of described sleeve has cone-shaped top surface (6) and the rubber ring that reclines.
2. a kind of unthreaded hole plug for pressure test according to claim 1, it is characterized in that: described bolt head external diameter coordinates with described unthreaded hole bore clearance, unthreaded hole aperture is greater than bolt head external diameter 0.1 ~ 0.2mm.
3. a kind of unthreaded hole plug for pressure test according to claim 2, is characterized in that: described bolt tail is provided with regular polygon dop (7) or regular polygon shrinkage pool.
4. a kind of unthreaded hole plug for pressure test according to claim 1, is characterized in that: the tapering α of described cone-shaped top surface (6) is 8 ° ~ 10 °.
5. a kind of unthreaded hole plug for pressure test according to claim 1, it is characterized in that: described rubber ring (3) external diameter coordinates with described unthreaded hole bore clearance, unthreaded hole aperture is greater than seal ring external diameter 0.05 ~ 0.1mm.
6. a kind of unthreaded hole plug for pressure test according to claim 1 or 5, is characterized in that: described rubber ring (3) material is nitrile rubber or fluorine rubber.
CN201420829824.5U 2014-12-24 2014-12-24 A kind of unthreaded hole plug for pressure test Active CN204459136U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420829824.5U CN204459136U (en) 2014-12-24 2014-12-24 A kind of unthreaded hole plug for pressure test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420829824.5U CN204459136U (en) 2014-12-24 2014-12-24 A kind of unthreaded hole plug for pressure test

Publications (1)

Publication Number Publication Date
CN204459136U true CN204459136U (en) 2015-07-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420829824.5U Active CN204459136U (en) 2014-12-24 2014-12-24 A kind of unthreaded hole plug for pressure test

Country Status (1)

Country Link
CN (1) CN204459136U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105466643A (en) * 2015-11-20 2016-04-06 沈阳黎明航空发动机(集团)有限责任公司 Sealing method of aviation casting machine box cavity pressure test
CN106015567A (en) * 2016-08-16 2016-10-12 贵州航锐航空精密零部件制造有限公司 Technology-hole quick plug
CN107518882A (en) * 2017-08-15 2017-12-29 长飞光纤光缆股份有限公司 A kind of intrusive pressure probe calibrating installation
CN110967148A (en) * 2019-11-19 2020-04-07 中国航发沈阳黎明航空发动机有限责任公司 Cavity plugging tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105466643A (en) * 2015-11-20 2016-04-06 沈阳黎明航空发动机(集团)有限责任公司 Sealing method of aviation casting machine box cavity pressure test
CN106015567A (en) * 2016-08-16 2016-10-12 贵州航锐航空精密零部件制造有限公司 Technology-hole quick plug
CN107518882A (en) * 2017-08-15 2017-12-29 长飞光纤光缆股份有限公司 A kind of intrusive pressure probe calibrating installation
CN110967148A (en) * 2019-11-19 2020-04-07 中国航发沈阳黎明航空发动机有限责任公司 Cavity plugging tool

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