CN206221891U - A kind of duct closing type device - Google Patents

A kind of duct closing type device Download PDF

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Publication number
CN206221891U
CN206221891U CN201621253943.6U CN201621253943U CN206221891U CN 206221891 U CN206221891 U CN 206221891U CN 201621253943 U CN201621253943 U CN 201621253943U CN 206221891 U CN206221891 U CN 206221891U
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CN
China
Prior art keywords
elastic bag
screw sleeve
closing type
take
type device
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Active
Application number
CN201621253943.6U
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Chinese (zh)
Inventor
孙慎林
雷少华
裴跃锋
丁党盛
廖杰新
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.)
Fourth Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
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Fourth Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
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Priority to CN201621253943.6U priority Critical patent/CN206221891U/en
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Abstract

It is capable of the elastic bag of sealing gas the utility model discloses a kind of duct closing type device, including inside.Screw sleeve is set through the inside of elastic bag, sealing is kept between elastic bag and screw sleeve, internal air is filled in the space between elastic bag and screw sleeve.Inserting take-up device in screw sleeve, nearly water side and the screw sleeve of take-up device are sealed, and when filling in pipeline, the nearly water side of elastic bag is contacted with water, and the purpose of current is stopped to reach.By pulling take-up device so that the two ends of screw sleeve are gathered to center, such that it is able to make elastic bag deformed dilation, so that the sidewall extrusion contact inner-walls of duct of elastic bag, take-up device pulls more to center, elastic bag is also bigger with the area of tube contacts, and the effect of sealing is better.The duct closing type device provided using the utility model, can just be matched, with versatility very high to the degree that center is gathered by adjusting take-up device from different pipe diameters.

Description

A kind of duct closing type device
Technical field
The utility model is related to construction equipment technical field, further sets a kind of duct closing type device.
Background technology
Building is required to set drainage system when building, by pipeline and auxiliary equipment, rainwater and life roofing Produce, domestic water is discharged in time.Hidden or buried drainage pipeline must do water filling test before hidden, it is therefore intended that inspection peace Whether the drainage pipeline for installing has breakthrough, prevents from breakthrough occur and cannot confirm particular location after pipeline is hidden.
When water filling test is done, traditional way is to weld interim blind flange at the mouth of pipe or set to block to drainage pipeline Air bag;The centre of blind flange does not set through hole, and for blocking pipe mouthful, closure air bag is also referred to as water blockoff air bag, inflation pipe close, mainly should For construction works such as draining, sewage conduct repairing, closed-water test leak detections, sealing is reached using the frictional force with pipeline Effect.
Ring flange is used for the sealing of the metallic conduit mouth of pipe, and long construction period is costly, and destruction can be produced to pipeline.Pipe Road closure air bag is applied to the pipeline of Large Diameter Pipeline, and the air bag of every kind of model only can be suitably used for the pipeline of specific model, versatility Difference, need to be equipped with the air bag of Multiple Type, costly.
Therefore, for a person skilled in the art, a kind of good orifice sealing device of versatility how is designed, is mesh The preceding technical issues that need to address.
Utility model content
The utility model provides a kind of duct closing type device, can be used for blocking the pipeline of various different tube diameters sizes, leads to It is high with property.Concrete scheme is as follows:
The elastic bag of sealing gas is capable of in a kind of duct closing type device, including inside, in the elastic bag Portion sets screw sleeve, and sealing is kept between the elastic bag and the screw sleeve;Inserting is tensed in the screw sleeve Device, nearly water side and the screw sleeve of the take-up device are sealed;The take-up device can be by the screw sleeve Two ends are gathered to center so that the elastic bag expands.
Alternatively, the take-up device is the harness cord screw rod and nut coordinated by screw thread, the end of the harness cord screw rod The nearly water side of the screw sleeve is fixed on, the nut screw connection is arranged on the harness cord screw rod, and is resisted against the screw rod The far water side of sleeve.
Alternatively, the end of the harness cord screw rod sets metallic gasket, and the metallic gasket can be pressed on the screw rod Sentence realization sealing in the opening of sleeve.
Alternatively, the harness cord screw rod subscript sets caliber mark, to match the internal diameter of the pipeline of Multiple Type.
Alternatively, the elastic bag is in ellipsoid, and the screw sleeve is set along the major axis of the elastic bag, so that The short axle expansion of the elastic bag.
Alternatively, the screw sleeve is rubber tube, and the elastic bag is rubber pneumatic bag;The screw sleeve with it is described Elastic bag is integrally formed.
Alternatively, the far water side on the elastic bag sets inflation inlet.
The utility model provides a kind of duct closing type device, including the elastic bag of sealing gas is capable of in inside, passes through Extruding elastic bag can make it produce dilatancy.Through the inside of elastic bag, screw sleeve, elastic bag and screw rod are set Sealing is kept between sleeve, internal air is filled in the space between elastic bag and screw sleeve.Screw sleeve interpolation Dress take-up device, nearly water side and the screw sleeve of take-up device are sealed, the nearly water side of elastic bag and water when filling in pipeline Contact, the purpose of current is stopped to reach.By pulling take-up device so that the two ends of screw sleeve are gathered to center, so that can So that elastic bag deformed dilation, so that the sidewall extrusion contact inner-walls of duct of elastic bag, take-up device is to center pulling Ground is more, and elastic bag is also bigger with the area of tube contacts, and pressure is also higher, and the effect of sealing is better.Using this reality With the duct closing type device of new offer, just can be straight from different pipelines to the degree that center is gathered by adjusting take-up device Footpath matches, with versatility very high.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 has just been put into the state diagram in pipeline for duct closing type device that the utility model is provided;
Fig. 2 is the state diagram when duct closing type device that the utility model is provided is contacted with inner-walls of duct just;
Fig. 3 is the state diagram when duct closing type device that the utility model is provided is contacted with pipe expansion.
Including:
Elastic bag 1, screw sleeve 2, harness cord screw rod 3, metallic gasket 31, nut 4, pipeline 5.
Specific embodiment
Core of the present utility model is to provide a kind of duct closing type device, can be used for blocking various different tube diameters sizes Pipeline, versatility is high.
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with accompanying drawing and Specific embodiment, the duct closing type device to the application is described in detail explanation.
As shown in Figure 1 to Figure 3, represent respectively the duct closing type device that the utility model is provided be put into pipeline just, it is proper It is good to be contacted with inner-walls of duct and state diagram during expansion contact.
Duct closing type device provided by the utility model, ties including elastic bag 1, screw sleeve 2 and take-up device etc. Structure.The inside of elastic bag 1 can accommodate gas and keep sealing, and elastic bag 1 is the housing body portion of whole device, interior The gas of certain air pressure is filled in portion, and expansion can be deformed in 1 stress of elastic bag, and the position of stress caves inward, makes not There is expansion in the position of stress.
Screw sleeve 2 is set through the inside of elastic bag 1, screw sleeve 2 is through the both sides of elastic bag 1, and bullet Property between air bag 1 and screw sleeve 2 keep sealing, both junction fixed seal connections.Inserting tenses dress in screw sleeve 2 Put, nearly water side and the screw sleeve 2 of take-up device keep sealing, and take-up device can drive the two ends of screw sleeve 2 to center Gather, the two ends of screw sleeve 2 are applied with the pressure to center, so that elastic bag 1 is produced on the direction of screw sleeve 2 Raw expansion.
Compared with traditional air bag, the elastic bag 1 in the utility model applies two by take-up device to elastic bag 1 The pressure of side, because the gas inside elastic bag 1 is flowable, therefore gas is moved to the position not stressed when pressure is applied Dynamic, the position that elastic bag 1 can be made not stress expands, and is fitted so as to mutually be compressed with inner-walls of duct.Take-up device pair Elastic bag 1 applies the pressure to center, while elastic bag 1 also can apply opposite effect power to take-up device, tenses dress The poised state for maintaining elastic bag 1 is put, makes elastic bag 1 produce elastic deformation to be crimped in pipeline, pipeline is reached stop The effect of current.
Take-up device pulls more to center, and elastic bag is also bigger with the area of tube contacts, and pressure is also higher, The effect of sealing is better.The duct closing type device provided using the utility model, is gathered by adjusting take-up device to center Degree can just be matched from different pipe diameter, with versatility very high.
Specifically, the take-up device in the utility model is the entirety that harness cord screw rod 3 and nut 4 are constituted.On harness cord screw rod 3 It is threaded, nut 4 is screwed cooperation with harness cord screw rod 3 by screw thread.The end of harness cord screw rod 3 is fixed on the near of screw sleeve 2 Water side, nut 4 is equipped with harness cord screw rod 3, and is resisted against the far water side of screw sleeve 2.By turn nut 4 adjust with The spacing of the nearly water side of harness cord screw rod 3, to change the deformation degree of elastic bag 1, so as to realize the different caliber of matching.
Further, metallic gasket 31 is set in the end of harness cord screw rod 3, metallic gasket 31 is fixed with harness cord screw rod 3 and connected Connect, can be fixed by the form welded, form the structure of approximate umbrella.The surrounding of metallic gasket 31 can be pressed on screw sleeve At 2 opening, to realize sealing, so as to the inner chamber of screw sleeve 2 mutually be completely cut off with the current in pipeline.
Preferably, the outer wall subscript in harness cord screw rod 3 sets caliber mark, to match the internal diameter of the pipeline of Multiple Type.Harness cord Screw rod 3 exerts a force when deforming to elastic bag 1, in order to reach effective sealing effectiveness, it is necessary to ensure to reach certain pressure, therefore Position according to where nut when requirement pressure is reached in the pipeline of different tube diameters 4, corresponding position sets on harness cord screw rod 3 Mark is put, nut 4 is rotated to corresponding position on harness cord screw rod 3 and ensured that by the selection according to line size when in use Sealing under this caliber.
In any of the above-described technical scheme and its in the case of be combineding with each other, the elastic bag 1 in the utility model is in ellipsoid Shape, screw sleeve 2 is set along the major axis of elastic bag 1, namely through the major axis of screw sleeve 2.In major axis forced compression, make The short axle expansion of elastic bag 1.The structure of elliposoidal can be such that dilatancy concentrates in short axle, can guarantee that better seal is imitated Really.Simultaneously the structure major axis of elliposoidal along pipeline bearing of trend, stability during placement is more preferable.Certainly, except elliposoidal with Outward, other structures are also possible, such as spheroid etc..
Specifically, the screw sleeve 2 in the utility model is rubber tube, and elastic bag 1 is rubber pneumatic bag, screw sleeve 2 It is made of same material with elastic bag 1, and is integrally formed setting, screw sleeve 2 applies in harness cord screw rod 3 and nut 4 Can also be deformed during compression stress.Furthermore, screw sleeve 2 is contour using rubber and fabric with elastic bag 1 Molecule synthesis material is made through high temperature curing process, inner sealing gas, production when inside filling gas, can nothing using process Need inflation.
In addition, far water side that can also be on elastic bag 1 sets inflation inlet, can be to internal inflating pressure.Inflation inlet can not The position of elastic bag 1 and tube contacts is arranged on, is preferably provided on the side wall of nut 4.
When in use, as shown in figure 1, first the device is placed into pipeline, then turning nut 4 presses elastic bag 1 Contracting expansion, as shown in Fig. 2 now the side wall of elastic bag 1 is contacted with inner-walls of duct just;As shown in figure 3, continuing to tighten nut 4, elastic bag 1 is increased with the pressure of inner-walls of duct, contact area increase, to reach effective sealing effectiveness;It is now elastic The major axis of air bag 1 shortens, and is expanded at short axle, overall closer to spheroid.Loosen nut 4 in dismounting, make elastic bag 1 time Original state is arrived again, the device not only goes for various sizes of pipeline, avoided with the process loosened closing is installed Elastic bag 1 produces friction, the effect of the protection also functioned to elastic bag 1 to can be applicable to different tube diameters, difference flat with pipeline Quick blocking pipeline on face and diverse location, is the ideal tools of mouth of pipe closure.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality Type.Various modifications to these embodiments will be apparent for those skilled in the art, determine herein The General Principle of justice, can in other embodiments realize in the case where spirit or scope of the present utility model are not departed from.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims (7)

1. a kind of duct closing type device, it is characterised in that be capable of the elastic bag (1) of sealing gas including inside, through described The inside of elastic bag (1) sets screw sleeve (2), keeps close between the elastic bag (1) and the screw sleeve (2) Envelope;Inserting take-up device in the screw sleeve (2), nearly water side and the screw sleeve (2) of the take-up device are sealed;Institute Stating take-up device can gather the two ends of the screw sleeve (2) to center so that the elastic bag (1) expands.
2. duct closing type device according to claim 1, it is characterised in that the take-up device is to be coordinated by screw thread Harness cord screw rod (3) and nut (4), the end of the harness cord screw rod (3) are fixed on the nearly water side of the screw sleeve (2), described Nut (4) is equipped with the harness cord screw rod (3), and is resisted against the far water side of the screw sleeve (2).
3. duct closing type device according to claim 2, it is characterised in that the end of the harness cord screw rod (3) sets gold Sentence realization sealing in category pad (31), the opening that the metallic gasket (31) can be pressed on the screw sleeve (2).
4. duct closing type device according to claim 2, it is characterised in that harness cord screw rod (3) subscript sets caliber mark Know, to match the internal diameter of the pipeline of Multiple Type.
5. the duct closing type device according to any one of Claims 1-4, it is characterised in that the elastic bag (1) is in ellipse Spherical, the screw sleeve (2) is set along the major axis of the elastic bag (1), so that the short axle of the elastic bag (1) is swollen It is swollen.
6. duct closing type device according to claim 5, it is characterised in that the screw sleeve (2) is rubber tube, described Elastic bag (1) is rubber pneumatic bag;The screw sleeve (2) is integrally formed with the elastic bag (1).
7. duct closing type device according to claim 5, it is characterised in that the far water side on the elastic bag (1) sets Put inflation inlet.
CN201621253943.6U 2016-11-15 2016-11-15 A kind of duct closing type device Active CN206221891U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621253943.6U CN206221891U (en) 2016-11-15 2016-11-15 A kind of duct closing type device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621253943.6U CN206221891U (en) 2016-11-15 2016-11-15 A kind of duct closing type device

Publications (1)

Publication Number Publication Date
CN206221891U true CN206221891U (en) 2017-06-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621253943.6U Active CN206221891U (en) 2016-11-15 2016-11-15 A kind of duct closing type device

Country Status (1)

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CN (1) CN206221891U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108163473A (en) * 2017-12-28 2018-06-15 胜帮科技股份有限公司 A kind of powder material conveying device
CN112846455A (en) * 2020-12-28 2021-05-28 中国化学工程第十三建设有限公司 Protective gas retaining device for pipeline installation
CN113085081A (en) * 2021-03-31 2021-07-09 广州欣凯裕生物科技有限公司 Injection molding cooling device for ETC panel production
CN113374963A (en) * 2020-02-25 2021-09-10 苏州诚河清洁设备有限公司 Pipe connecting device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108163473A (en) * 2017-12-28 2018-06-15 胜帮科技股份有限公司 A kind of powder material conveying device
CN108163473B (en) * 2017-12-28 2020-05-12 胜帮科技股份有限公司 Powder material conveying device
CN113374963A (en) * 2020-02-25 2021-09-10 苏州诚河清洁设备有限公司 Pipe connecting device
CN112846455A (en) * 2020-12-28 2021-05-28 中国化学工程第十三建设有限公司 Protective gas retaining device for pipeline installation
CN113085081A (en) * 2021-03-31 2021-07-09 广州欣凯裕生物科技有限公司 Injection molding cooling device for ETC panel production

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