CN204267977U - A kind of seal for pipe joints plug - Google Patents
A kind of seal for pipe joints plug Download PDFInfo
- Publication number
- CN204267977U CN204267977U CN201420651523.8U CN201420651523U CN204267977U CN 204267977 U CN204267977 U CN 204267977U CN 201420651523 U CN201420651523 U CN 201420651523U CN 204267977 U CN204267977 U CN 204267977U
- Authority
- CN
- China
- Prior art keywords
- platen
- screw mandrel
- locking screw
- pallet
- seal
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of seal for pipe joints plug, comprising the pallet that is parallel to each other and arranges and platen, to be arranged between pallet and platen and circumferential surface is the elastic seal ring of cydariform and connecting trays and platen and by axially pushing up the locking screw mandrel that compression elasticity seal ring makes its circumferential surface bulge; The axis part of described pallet is shaped with a screw matched with locking screw mandrel, the axis of screw and the axis coaxle of locking screw mandrel; The axis part of described platen is shaped with the through hole that a locking screw mandrel passes through, and described platen upper-end surface is provided with outward extending backstop flange.Adopt the utility model to reach good seal performance, dismounting uses convenient, and theftproof performance avoids well the effect of illegal dismounting.
Description
Technical field
The utility model belongs to duct occlusion device technique field, is specifically related to the pipe close by radial expansion or distortion fixing seal.
Background technique
Chinese patent literature (number of patent application 201320424525.9) discloses a kind of seal for pipe joints plug, its structure comprises the pallet that is parallel to each other and arranges and platen, to be arranged between pallet and platen and circumferential surface is the elastic seal ring of cydariform and connecting trays and platen and by axially pushing up the locking screw mandrel that compression elasticity seal ring makes its circumferential surface bulge, the axis part of pallet is shaped with a screw matched with locking screw mandrel, the axis of screw and the axis coaxle of locking screw mandrel; The axis part of platen is shaped with the through hole that a locking screw mandrel passes through, and is also provided with the seal ring for sealing between platen upper-end surface and locking screw mandrel.This seal for pipe joints plug when laying the various pipelines such as sewer, water inlet, waste pipe or raceway, can take seal isolation measure to pipeline.But the platen of sealing plug is diametrically less than or equal to internal diameter of the pipeline outward, the various impurity such as rainwater, silt easily enters pipe interior by platen, space between elastic seal ring and pipeline and causes line clogging or damage, its stop bit is also wayward, stressed improper or external force reason easily causes whole the entering in pipeline of sealing plug to make sealing influenced, and operation not easily.
Summary of the invention
The purpose of this utility model overcomes the not easy-operating defect of prior art seal for pipe joints plug, provides a kind of seal for pipe joints plug, and this seal for pipe joints plug should have good airproof performance, applied widely, easy to use, structure is simple and lower-cost feature.
The technical solution of the utility model is:
Seal for pipe joints plug, comprising the pallet that is parallel to each other and arranges and platen, to be arranged between pallet and platen and circumferential surface is the elastic seal ring of cydariform and connecting trays and platen and by axially pushing up the locking screw mandrel that compression elasticity seal ring makes its circumferential surface bulge; The axis part of described pallet is shaped with a screw matched with locking screw mandrel, the axis of screw and the axis coaxle of locking screw mandrel; The axis part of described platen is shaped with the through hole that a locking screw mandrel passes through, and described platen upper-end surface is provided with outward extending backstop flange.
Further for improving sealability, the lower end surface of described backstop flange is shaped with the pad be connected as a single entity.
Further, for preventing illegal dismounting, the peripheral shape on the top of described locking screw mandrel or internal via shape are the shape that non-universal instrument is corresponding.The end of existing screw mandrel or endoporus are hexagonal, just can illegally dismantle with general utility tool, and the periphery of the end of the screw mandrel that the utility model provides or endoporus are abnormity, simultaneously the supporting special spanner providing the operation that matches.The utility model, by changing peripheral shape or the internal via shape of the end of screw mandrel, reaches the order preventing illegal dismounting.
Use the utility model, seal for pipe joints plug to be positioned in pipeline with corresponding spanner rotational lock screw mandrel thus the axis promoting platen and pallet edge to lock screw mandrel is close to each other, platen and pallet is made to push up compression elasticity seal ring from two ends respectively and make it that deformation occur, elastic seal ring radial direction expansion outward under axial pressure effect, circumferential surface enlarges markedly, and the circumferential surface of final elastic seal ring is tightly attached on inner-walls of duct and is sealed completely by pipeline.
The beneficial effects of the utility model are:
1. good seal performance.When sealing plug uses, the circumferential surface of elastic seal ring can bloat to the outer diameter and tightly touch inner-walls of duct, the seal ring of configuration can also reliably realize sealing between locking screw mandrel and platen through hole, described platen upper-end surface is provided with outward extending backstop flange, the external diameter of platen upper-end surface is more than or equal to the external diameter of pipeline, platen backstop flange is close to pipe surface, sealing between sealing plug platen and pipeline is strengthened, better avoids the impurity such as rainwater, silt and enter in pipeline.Sealability is stablized, and can repeatedly use, significantly can reduce operating cost.
2. dismounting uses convenient.Only need turn to lock screw mandrel just to install or remove, very easy to use; And the external diameter of the platen upper-end surface of sealing plug is more than or equal to the external diameter of pipeline, and disassembly process has Point of Strength, in installation or using process, also can not cause that sealing plug is whole to be entered in pipeline because of stressed improper or external force reason.
3, the utility model is by changing peripheral shape or the internal via shape of the end of locking screw mandrel, and theftproof performance avoids illegal dismounting well.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is piping drawing of the present utility model.
Fig. 3 is the main TV structure schematic diagram of the locking screw mandrel in the utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail.
Seal for pipe joints plug as shown in figure 1 – Fig. 2 comprises pallet, platen, elastic seal ring and locking screw mandrel; , pallet 5 and platen 3 are parallel to each other layout, arrange the elastic seal ring 4 that a circumferential surface is cydariform between pallet and platen; Locking screw mandrel 2 connecting trays and platen, and its circumferential surface can be bulged by axially pushing up compression elasticity seal ring; The axis part of pallet is shaped with a screw 6 matched with locking screw mandrel, the axis of screw and the axis coaxle of locking screw mandrel; The axis part of described platen is shaped with the through hole that a locking screw mandrel passes through; Pallet circle edge is along being shaped with the 5-1 that begins to speak, and platen circle edge, along being shaped with down the 3-1 that begins to speak, is provided with the seal ring 1 for sealing between platen upper-end surface and locking screw mandrel.
Described platen upper-end surface is provided with outward extending backstop flange 3-2, the lower end surface of described backstop flange 3-2 is shaped with the pad be connected as a single entity, sealing between seal for pipe joints plug and pipeline 7 is strengthened, better avoid the impurity such as rainwater, silt to enter in pipeline, and then effective sealing can be realized.
The periphery of the end of the screw mandrel that the utility model provides or endoporus are abnormity, and non-universal instrument can be opened, the supporting special spanner providing the operation that matches.The utility model avoids illegal dismounting by the peripheral shape or internal via shape changing the end of screw mandrel.
The above is only preferred embodiment of the present utility model, is not limited to the utility model.
Claims (3)
1. a seal for pipe joints plug, comprises the pallet (5) that is parallel to each other and arranges and platen (3), to be arranged between pallet and platen and circumferential surface is the elastic seal ring (4) of cydariform and connecting trays and platen and pushes up by axis the locking screw mandrel (2) that compression elasticity seal ring makes its circumferential surface bulge; The axis part of described pallet is shaped with a screw (6) matched with locking screw mandrel, the axis of screw and the axis coaxle of locking screw mandrel; The axis part of described platen is shaped with the through hole that a locking screw mandrel passes through, and it is characterized in that: described platen upper-end surface is provided with outward extending backstop flange (3-2).
2. a kind of seal for pipe joints plug according to claim 1, is characterized in that: the lower end surface of described backstop flange (3-2) is shaped with the pad be connected as a single entity.
3. a kind of seal for pipe joints plug according to claim 2, is characterized in that: the peripheral shape on the top of described locking screw mandrel or internal via shape are the shape that non-universal instrument is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651523.8U CN204267977U (en) | 2014-11-04 | 2014-11-04 | A kind of seal for pipe joints plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651523.8U CN204267977U (en) | 2014-11-04 | 2014-11-04 | A kind of seal for pipe joints plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267977U true CN204267977U (en) | 2015-04-15 |
Family
ID=52802844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420651523.8U Expired - Fee Related CN204267977U (en) | 2014-11-04 | 2014-11-04 | A kind of seal for pipe joints plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267977U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294020A (en) * | 2017-06-15 | 2017-10-24 | 国网浙江省电力公司衢州供电公司 | Self-expanding cable channel sealing-plug |
| CN113719689A (en) * | 2021-08-03 | 2021-11-30 | 国网福建省电力有限公司检修分公司 | Transformer pipeline sealing device |
-
2014
- 2014-11-04 CN CN201420651523.8U patent/CN204267977U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294020A (en) * | 2017-06-15 | 2017-10-24 | 国网浙江省电力公司衢州供电公司 | Self-expanding cable channel sealing-plug |
| CN107294020B (en) * | 2017-06-15 | 2019-01-29 | 国网浙江省电力公司衢州供电公司 | Self-expanding cable channel sealing-plug |
| CN113719689A (en) * | 2021-08-03 | 2021-11-30 | 国网福建省电力有限公司检修分公司 | Transformer pipeline sealing device |
| CN113719689B (en) * | 2021-08-03 | 2023-08-04 | 国网福建省电力有限公司检修分公司 | Transformer pipeline sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20201104 |