CN203500748U - Conical expansion sealing plug - Google Patents
Conical expansion sealing plug Download PDFInfo
- Publication number
- CN203500748U CN203500748U CN201320486274.7U CN201320486274U CN203500748U CN 203500748 U CN203500748 U CN 203500748U CN 201320486274 U CN201320486274 U CN 201320486274U CN 203500748 U CN203500748 U CN 203500748U
- Authority
- CN
- China
- Prior art keywords
- taper
- expansion core
- screw rod
- stuffing box
- box gland
- 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
Links
- 238000007789 sealing Methods 0.000 title abstract description 18
- 210000004907 gland Anatomy 0.000 claims description 34
- 238000003825 pressing Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 5
- 230000008961 swelling Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000007747 plating Methods 0.000 description 23
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- 239000000126 substance Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920002627 poly(phosphazenes) Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model discloses a conical expansion sealing plug. The conical expansion sealing plug is characterized by comprising a conical expansion core (1) and a sealing sleeve (2), wherein the sealing sleeve (2) is matched with the conical surface of the conical expansion core (1), the outer wall of the sealing sleeve (2) is in fit sealing with the inner wall of a pipe, the fine end of the conical surface of the conical expansion core (1) is provided with a press plate (4), one end, facing the pipe opening, of the conical expansion core (1) is provided with a screw rod (3), and the screw rod (3) is matched with a nut. When the nut is tightened, the conical expansion core (1) creeps to the sealing sleeve (2), and then the sealing sleeve (2) is extruded to expand. Compared with the prior art, the conical expansion sealing plug has the advantages that the sealing reliability is high, the detachment is convenient, and the structure is simple.
Description
Technical field
The utility model relates to a kind of pipe inner seal liner, is specially a kind of casting tapered expansion seal plug.
Background technique
At Surface Processing Industry, some part is only required processing local surfaces, for protection size, protection, avoids polluting treatment fluid, the reason such as reduces costs, and must, to not needing surface area to be processed all to carry out airtight capping reliably, keep away plating and process.For example the open tubular column stopper rod 11 in Fig. 1, only has periphery 14 to need to process, and surface treatment is not processed, do not carried out to endoporus 15, and endoporus 15 just needs airtight protection.
Conventional airtight protected-type has at present: taper plug, ring structure, spraying special paint etc.The taper plug of commonly using of take is example, the airtight protection situation of inner chamber when analysis open tubular column stopper rod carries out chemical nickel plating.Conical rubber plug structure is as shown in Figure 1:
11-processed pipe fitting, for example open tubular column stopper rod, requires only to process periphery
12-airtight point
13-taper plug
14-processed pipe fitting periphery
15-processed pipe fitting inner headed face
A-taper plug elastic expansion power
The propelling force of B-installation taper plug
apply external force B and plug is advanced to the endoporus two ends of open tubular column stopper rod 11, by the elastic force between taper plug 13 and plunger rod inner hole wall 15, form potted line 12, the size that seal-swelling power A enters the power B of stopper by wedge determines.
This plug is easy to damage under the factor effects such as wearing and tearing, high temperature, soda acid, airtight inefficacy, cause the impurity such as iron rust, scale, greasy dirt of tube intracavity to enter chemical plating fluid, and chemical plating fluid leaks into tube intracavity, cause raw materials waste, chemical plating fluid to pollute, and then have a strong impact on quality of product.In addition, plug scrappage is high, and cost of production increases; Plug does not have vent, and tube intracavity air heat expansion power, easily plug expansion, causes security incident.
Also there is Similar Problems in the airtight protection of O type coil structures, is coated with high temperature lacquer protection and easily comes off, severe contamination chemical plating fluid.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of tapered expansion seal plug, by taper expansion core and the stuffing box gland of cooperation are set, has advantages of good sealing effect, simple in structure.
For reaching above object, the technological scheme that the utility model adopts is:
A tapered expansion seal plug, comprises taper expansion core, and taper expansion core outer cover is established stuffing box gland, the outer wall of stuffing box gland and inner tube wall fitted seal; The fitting surface of taper expansion core and stuffing box gland is the conical surface, and taper expansion core is provided with pressing plate in the taper end of the conical surface, and taper expansion core is provided with screw rod towards one end of the mouth of pipe, is combined with nut on screw rod; Screw nut, taper expansion core is wriggled in stuffing box gland, the swelling of crush seal cover.
Further, described taper expansion core is being its taper end near nose end, and screw rod is arranged on taper end one side of taper expansion core, and screw rod is through pressing plate, and pressing plate is between nut and stuffing box gland.
Further, described taper expansion core is taper end away from nose end, and the middle part of taper expansion core is axially arranged with through hole along it, wears screw rod in through hole, and screw rod is wearing pressing plate away from nose end, and the other end is combined with nut through after taper expansion core; Pressing plate is positioned at a side of stuffing box gland and taper expansion core.
Further, described stuffing box gland external cylindrical surface is provided with protruding seal ring.
Further, described seal plug is provided with vent.
Further, described vent connects taper expansion core and screw rod vertically.
Further, described taper expansion core and the integrated mechanism of screw rod.
Further, described taper expansion core and screw rod are Split type structure.
Further, described taper expansion core is stainless steel, nylon, polyphosphazene polymer third or plain carbon steel material.
Further, described stuffing box gland is elastic colloidal material.
Working principle of the present utility model and intentionally effect show:
The utility model mainly comprises that taper expansion core, stuffing box gland and screw rod form.
Wherein, the outer wall of stuffing box gland and inner tube wall fitted seal, the inwall of stuffing box gland is also the conical surface and coordinates with the outer wall of taper expansion core, taper expansion core towards stuffing box gland extend into stuffing box gland time, to stuffing box gland, apply an outside expansive force, thereby stuffing box gland is coordinated with the seal of tube.
Be provided with vent, vent can balanced seal the pressure of stifled both sides, prevent that inner air tube pressure from raising and occur appearance that seal plug is gone out to mouth of pipe situation.
The structure that taper expansion core and screw rod can adopt one or separate, integrative-structure is convenient to that once-through is easy for installation, separate structure is conducive to reduce manufacture cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiments that record in the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing;
Fig. 1 is existing seal plug sealing structure schematic diagram;
Fig. 2 is embodiment's 1 structural representation;
Fig. 3 is embodiment's 2 structural representations;
Fig. 4 is embodiment's 3 structural representations;
Fig. 5 is that embodiment 1 uses phase diagram;
In figure: 1: taper expansion core, 2: stuffing box gland, 3: screw rod, 4: pressing plate, 5: vent, 6: packing ring, 7: seal ring, 8: nut, 9: piston rod.
Embodiment
The correlation technique content of not addressing below all can adopt or use for reference prior art.
In order to make those skilled in the art person understand better the technological scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technological scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiments.Embodiment based in the application, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all should belong to the scope of the application's protection.
A tapered expansion seal plug, comprises taper expansion core 1, and taper expansion core 1 outer cover is provided with stuffing box gland 2, the outer wall of stuffing box gland 2 and inner tube wall fitted seal.
Described taper expansion core 1 is stainless steel, nylon, polyphosphazene polymer third or plain carbon steel material; Described stuffing box gland 2 is elastic colloidal material.
The outer wall of taper expansion core 1 is the conical surface, and the inwall of stuffing box gland 2 is also the conical surface, and one end that in two conical surfaces, its cross section is less is its taper end, the other end is bottom, two conical surfaces cooperatively interact, and by taper expansion core 1, in stuffing box gland, wriggle, and crush seal cover 2 is realized swelling.
As shown in Figure 2, described taper expansion core 1 is being its taper end near nose end, the taper end of taper expansion core 1 is provided with screw rod 3, in the present embodiment, screw rod 3 is structure as a whole with taper expansion core 1, be that both are as a whole, relatively build and form, screw rod 3 is equipped with pressing plate 4 and is combined with nut 8, and pressing plate 4 is between nut 8 and stuffing box gland 2.
Middle part along taper expansion core 1 is provided with vent 5, and vent 5 is led to the end of screw rod always by the bottom of taper expansion core 1.
As shown in Figure 3, except screw rod 3 is Split type structure with taper expansion core 1, other structures are all identical with embodiment 1.
Described taper expansion core 1 is taper end away from nose end, and the middle part of taper expansion core 1 is axially arranged with through hole along it, is equipped with screw rod 3 in through hole, and screw rod 3 is wearing pressing plate 4 away from nose end, and the other end is combined with nut 8 through after taper expansion core 1; The present embodiment center platen 4 is positioned at a side of stuffing box gland 2 and expansion inner core 1, as shown in Figure 4.
On screw rod 3, be provided with vent 5, vent 5 connects the two ends of screw rod 3; Between nut and taper expansion core 1, be provided with packing ring 6.
In above embodiment 1-3, described stuffing box gland 2 outer walls are provided with protruding seal ring 7, and the width of seal ring 7 can be identical, also can be different, and the combination of shape or geometrical shape can be gathered for arc, trapezoidal, square etc. in the cross section of seal ring 7.
During use, as shown in Figure 5:
The first step, chemical nickel plating is produced the preparatory stage, the state that the stifled internal diameter of adjusting to plunger rod 9 of Expansion sealing is adapted.
Second step, by two stifled appropriate locations of putting into respectively plunger rod 9 two ends endoporus of the airtight glue that expands.
The 3rd step, screws nut 8, makes the abundant swelling colloid seal cover 2 of taper expansion core 1, to the inner chamber reliable sealing of plunger rod 9.
The 4th step, the plunger rod 9 of airtight protection enters nickel chemical plating technology flow process.
The 5th step, in plating pretreatment stage, Expansion sealing is stifled guarantees that degreaser, activator etc. do not enter the inner chamber of plunger rod 9.
The 6th step, in chemical nickel plating groove, Expansion sealing is stifled guarantees that plating solution does not enter the inner chamber of plunger rod 9, iron rust, scale and greasy dirt in plunger rod 9 inner chambers do not overflow and enter plating solution.
The 7th step, completes and sets after the functional chemical Ni-plating layer that plating time, plated Surface Creation are qualified, and plunger rod goes out coating bath.
The 8th step, plates reprocessing to plunger rod 9, cleans up, and completes nickel chemical plating technology.
The 9th step, unscrews tightening nut 8, and taper expansion core 1 exits swelling state, to the interior cavity direction of plunger rod 9, promotes taper expansion core, and colloid seal cover is separated with the bore area of pipe fitting.
The tenth step, the whole expandable sealant that takes out blocks up, and cleans up, and enters next process cycles, so Reusability.
In above-mentioned nickel chemical plating technology flow process, expandable sealant is stifled play crucial sealing plunger rod inner chamber keep away plating protective action.This model utility structure makes full use of tapered expansion principle, make the inner chamber of plated pipe fitting obtain reliable seal protection, effectively stop the impurity such as the surperficial scale of the non-plating of tube intracavity, iron rust, greasy dirt to leak in chemical plating fluid, extended bath life, guaranteed quality of coating; Effectively stop chemical plating fluid to enter tube intracavity, avoided invalid plating and plating solution to be taken out of the waste causing.
In a word, this invention has the advantages such as simple in structure, easy to operate, reliable performance, long service life.In chemical nickel plating and various process of surface treatment, play and ensure quality of coating, the key effect saving production cost.
The above is only the application's preferred implementation, makes those skilled in the art can understand or realize the application.To these embodiments' multiple modification, will be apparent to one skilled in the art, General Principle as defined herein can be in the situation that do not depart from the application's spirit or scope, realization in other embodiments.Therefore, the application will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a tapered expansion seal plug, is characterized in that: comprise taper expansion core (1), the outside sheathed stuffing box gland of taper expansion core (1) (2), the outer wall of stuffing box gland (2) and inner tube wall fitted seal; The fitting surface of taper expansion core (1) and stuffing box gland (2) is the conical surface, and taper expansion core (1) is provided with pressing plate (4) in the taper end of the conical surface, and taper expansion core (1) is provided with screw rod (3) towards one end of the mouth of pipe, and screw rod is combined with nut on (3); Screw nut, taper expansion core (1) is wriggled in stuffing box gland (2), crush seal cover (2) swelling.
2. tapered expansion seal plug according to claim 1, it is characterized in that: described taper expansion core (1) is being its taper end near nose end, screw rod (3) is arranged on taper end one side of taper expansion core (1), screw rod (3) is through pressing plate (4), and pressing plate (4) is positioned between nut and stuffing box gland (2).
3. tapered expansion seal plug according to claim 1, it is characterized in that: described taper expansion core (1) is taper end away from nose end, the middle part of taper expansion core (1) is axially arranged with through hole along it, in through hole, wear screw rod (3), screw rod (3) is wearing pressing plate (4) away from nose end, the other end is combined with nut through after taper expansion core (1); Pressing plate (4) is positioned at a side of stuffing box gland (2) and taper expansion core (1).
4. according to the tapered expansion seal plug described in claim 1 or 2 or 3, it is characterized in that: described stuffing box gland (2) external cylindrical surface is provided with protruding seal ring.
5. tapered expansion seal plug according to claim 1, is characterized in that: described seal plug is provided with vent (5).
6. tapered expansion seal plug according to claim 5, is characterized in that: described vent (5) connects taper expansion core (1) and screw rod (3) vertically.
7. tapered expansion seal plug according to claim 1 and 2, is characterized in that: described taper expansion core (1) and the integrated mechanism of screw rod (3).
8. tapered expansion seal plug according to claim 1 and 2, is characterized in that: described taper expansion core (1) is Split type structure with screw rod (3).
9. according to the tapered expansion seal plug described in claim 1 or 2 or 3, it is characterized in that: described stuffing box gland (2) is elastic colloidal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486274.7U CN203500748U (en) | 2013-08-11 | 2013-08-11 | Conical expansion sealing plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486274.7U CN203500748U (en) | 2013-08-11 | 2013-08-11 | Conical expansion sealing plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500748U true CN203500748U (en) | 2014-03-26 |
Family
ID=50331724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486274.7U Expired - Fee Related CN203500748U (en) | 2013-08-11 | 2013-08-11 | Conical expansion sealing plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500748U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167570A (en) * | 2017-12-25 | 2018-06-15 | 武汉静磁栅机电制造有限公司 | A kind of pipe sealing device |
| CN110265958A (en) * | 2019-07-31 | 2019-09-20 | 苏州华易亿全电力器材有限公司 | A kind of cable protection pipe pipe close |
| CN111456801A (en) * | 2020-04-14 | 2020-07-28 | 西安闪光能源科技有限公司 | Method for permeability-increasing coal seam in drilling holes in top plate and bottom plate of coal seam |
| CN112126917A (en) * | 2020-09-10 | 2020-12-25 | 中国航发贵州黎阳航空动力有限公司 | Chemical nickel plating structure for hollow part |
| CN112611516A (en) * | 2020-12-07 | 2021-04-06 | 沪东中华造船(集团)有限公司 | Hull low-pressure piping air tightness detection auxiliary device |
| CN113502465A (en) * | 2021-07-06 | 2021-10-15 | 中国航发贵州黎阳航空动力有限公司 | Protection tool and plating method for local chemical plating of tubular part |
| WO2022011528A1 (en) * | 2020-07-14 | 2022-01-20 | 昆山德安模具设计有限公司 | Sealed pipe |
| CN115117803A (en) * | 2022-05-31 | 2022-09-27 | 中铁电气化局集团北京建筑工程有限公司 | Double-expansion water stopper for reserved conduit of underground structure |
| KR20230071887A (en) * | 2021-11-16 | 2023-05-24 | 주식회사 케이씨 | Gas Supply Apparatus |
-
2013
- 2013-08-11 CN CN201320486274.7U patent/CN203500748U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167570A (en) * | 2017-12-25 | 2018-06-15 | 武汉静磁栅机电制造有限公司 | A kind of pipe sealing device |
| CN110265958A (en) * | 2019-07-31 | 2019-09-20 | 苏州华易亿全电力器材有限公司 | A kind of cable protection pipe pipe close |
| CN111456801A (en) * | 2020-04-14 | 2020-07-28 | 西安闪光能源科技有限公司 | Method for permeability-increasing coal seam in drilling holes in top plate and bottom plate of coal seam |
| WO2022011528A1 (en) * | 2020-07-14 | 2022-01-20 | 昆山德安模具设计有限公司 | Sealed pipe |
| CN112126917A (en) * | 2020-09-10 | 2020-12-25 | 中国航发贵州黎阳航空动力有限公司 | Chemical nickel plating structure for hollow part |
| CN112126917B (en) * | 2020-09-10 | 2022-12-06 | 中国航发贵州黎阳航空动力有限公司 | Chemical nickel plating structure for hollow part |
| CN112611516A (en) * | 2020-12-07 | 2021-04-06 | 沪东中华造船(集团)有限公司 | Hull low-pressure piping air tightness detection auxiliary device |
| CN113502465A (en) * | 2021-07-06 | 2021-10-15 | 中国航发贵州黎阳航空动力有限公司 | Protection tool and plating method for local chemical plating of tubular part |
| KR20230071887A (en) * | 2021-11-16 | 2023-05-24 | 주식회사 케이씨 | Gas Supply Apparatus |
| KR102605218B1 (en) * | 2021-11-16 | 2023-11-24 | 주식회사 케이씨 | Gas Supply Apparatus |
| CN115117803A (en) * | 2022-05-31 | 2022-09-27 | 中铁电气化局集团北京建筑工程有限公司 | Double-expansion water stopper for reserved conduit of underground structure |
| CN115117803B (en) * | 2022-05-31 | 2024-04-09 | 中铁电气化局集团北京建筑工程有限公司 | Double-expansion water stopper for reserved conduit of underground structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |