CN205136843U - All steel sealed interface of heavy -calibre reinforced concrete push pipe - Google Patents
All steel sealed interface of heavy -calibre reinforced concrete push pipe Download PDFInfo
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- CN205136843U CN205136843U CN201520890632.XU CN201520890632U CN205136843U CN 205136843 U CN205136843 U CN 205136843U CN 201520890632 U CN201520890632 U CN 201520890632U CN 205136843 U CN205136843 U CN 205136843U
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Abstract
The utility model belongs to the technical field of pipeline technology and specifically relates to an all steel sealed interface of heavy -calibre reinforced concrete push pipe, including bellmouth steel sleeve and socket steel sleeve, socket steel sleeve is the whole shaping steel bushing that the surface was equipped with two basic grooves, and two basic inslots are equipped with O type rubber seal and another O type rubber seal respectively, O type rubber seal and another O type rubber seal's the attached internal surface at bellmouth steel sleeve of terminal surface, and socket steel sleeve's internal surface is equipped with recess and another recess. Compared with the prior art, the utility model, the socket has designed the whole fashioned steel sleeve structure of high accuracy to has adopted 2 O type rubber seal, has made impervious structure precision, the impervious intensity of heavy -calibre reinforced concrete push pipe interface higher, thus the impervious performance who makes the interface more reliably, more stable.
Description
Technical field
The utility model relates to pipe technology field, specifically a kind of all-steel sealing interface of large-diameter steel reinforced concrete ceiling coil.
Background technique
Current, the draining of China or low pressure feed water, and the pipeline of other purposes underground pipe jacking methods, mostly adopt sealability reasonable F type interface RC pipejacking.Due to urban transportation and environmetal impact, embed pipe with trough method of construction has more and more been abandoned in the construction of similar this pipeline, and adopts the construction by pipeline jacking method technology of no-dig technique.
F type interface RC pipejacking is used for trenchless prop pipelining, has that pipeline patches fast, rectify a deviation control performance and the feature such as sealability is better, is specially adapted to heavy caliber curve and long-distance pipe jacking, applies increasingly extensive.
But F type interface RC pipejacking also exists following deficiency:
1, rubber seal is wedge-shaped structure, and wedge-shaped rubber seal ring structurally also exists the anti-inside and outside asymmetric deficiency of hydraulic pressure value, and its anti-outer hydraulic pressure differs more than five times with the ratio of anti-interior hydraulic pressure, and in pipeline actual design is anti-, hydraulic pressure value is generally no more than 0.2Mpa.This differs more than two grades with the concrete seepage-resistant grade P8 of push pipe, and that causes on structure anti-permeability strength is unbecoming.
2, the bottom of wedge-shaped rubber seal ring is fixed on the foundation trench of socket reinforced concrete, due to the defect such as degree of compaction, voids and pits, the template junction of the edges of two sheets of paper of concrete surface, and the factor such as the diameter of concrete forming and deviation from circular from, capital makes the anti-leakage hydraulic performance decline of interface, thus interface seepage probability is increased.
3, be that steel bushing is gone along with sb. to guard him for F type interface RC pipejacking bellmouth periphery, the concrete at socket position does not then have corresponding steel bushing to go along with sb. to guard him, cause the intensity of bellmouth, socket concrete structure transmission top power inconsistent, affect the performance of push pipe overall anti-top force intensity.
Therefore, design the all-steel sealing interface of large-diameter steel reinforced concrete ceiling coil of a kind of higher impervious structure precision, higher anti-permeability strength, there is the important meaning improving and improve F type push pipe interfacing further.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides the all-steel sealing interface of large-diameter steel reinforced concrete ceiling coil of a kind of higher impervious structure precision, higher anti-permeability strength.
In order to achieve the above object, the utility model is a kind of all-steel sealing interface of large-diameter steel reinforced concrete ceiling coil, comprise bellmouth steel bushing and socket steel bushing, socket steel bushing inserts in bellmouth steel bushing, it is characterized in that: described socket steel bushing is the global formation steel bushing that outer surface is provided with two foundation trenches, O type rubber seal and another O type rubber seal is respectively equipped with in two foundation trenches, the end face of O type rubber seal and another O type rubber seal is attached to the internal surface of bellmouth steel bushing, the internal surface of socket steel bushing is provided with groove and another groove, groove is between two foundation trenches, another groove is formed between the side of foundation trench and spacer bar one, first slow expanding sealing strips is pasted onto in groove, and around pressure testing pipe, second slow expanding sealing strips is pasted onto in another groove, and around slurry injection pipe, the internal surface of socket steel bushing is welded with connecting reinforcement and another connecting reinforcement, connecting reinforcement is connected with the reinforcement cage of another connecting reinforcement with large-diameter steel reinforced concrete ceiling coil.
Described first slow expanding sealing strips and the second slow expanding sealing strips are located between socket steel bushing and socket reinforced concrete.
The internal surface of described bellmouth steel bushing is provided with spacer bar two and spacer bar three, is provided with the 3rd slow expanding sealing strips between spacer bar two and spacer bar three.
Described the 3rd slow expanding sealing strips is located between bellmouth steel bushing and bellmouth reinforced concrete.
Described socket steel bushing end is provided with approaching face, and the angle of approaching face and socket steel bushing outer wall is 30 °.
Described socket steel bushing front end is S-type.
The utility model compared with the existing technology, the jack design steel bushing structure of highi degree of accuracy global formation, and have employed 2 O type rubber seal, make the impervious structure precision of large-diameter steel reinforced concrete ceiling coil interface, anti-permeability strength higher, thus make the impermeability of interface more reliably, more stable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Now by reference to the accompanying drawings the utility model is described further.
See Fig. 1, the utility model is a kind of all-steel sealing interface of large-diameter steel reinforced concrete ceiling coil, comprises bellmouth steel bushing and socket steel bushing, and socket steel bushing inserts in bellmouth steel bushing.Socket steel bushing 3 is global formation steel bushings that outer surface is provided with two foundation trenches, O type rubber seal 1a and another O type rubber seal 1b is respectively equipped with in two foundation trenches, the end face of O type rubber seal 1a and another O type rubber seal 1b is attached to the internal surface of bellmouth steel bushing 2, the internal surface of socket steel bushing 3 is provided with groove 13a and another groove 13b, groove 13a is between two foundation trenches, another groove 13b is formed between the side of foundation trench and spacer bar one 5a, first slow expanding sealing strips 6a is pasted onto in groove 13a, and around pressure testing pipe 8, second slow expanding sealing strips 6b is pasted onto in another groove 13b, and around slurry injection pipe 7, the internal surface of socket steel bushing 3 is welded with connecting reinforcement 4a and another connecting reinforcement 4b, connecting reinforcement 4a is connected with the reinforcement cage of large-diameter steel reinforced concrete ceiling coil with another connecting reinforcement 4b, thus make the anti-leakage intensity of large-diameter steel reinforced concrete ceiling coil and anti-leakage reliability have the raising of matter.
In the utility model, O type rubber seal 1a and another O type rubber seal 1b has inside and outside water-pressure sealed intensity symmetry and two-way selfsealings performance.After adopting O type rubber seal 1a and another O type rubber seal 1b, sealing joint intensity is minimum can bring up to more than 1Mpa.Consider the restriction of the internal hydraulic pressure of reinforced concrete pipiline structure, after adopting O type rubber seal 1a and another O type rubber seal 1b, hydraulic pressure design load in existing large-diameter steel reinforced concrete ceiling coil can be brought up to more than 0.5Mpa by 0.2Mpa.
The sealing be made up of O type rubber seal 1a, another O type rubber seal 1b and pressure testing hole and pressure testing device, there is two-way equal strength sealing function, the more original wedge-shaped rubber circle of the anti-interior hydraulic pressure intensity of large-diameter steel reinforced concrete ceiling coil can not only be made to be enhanced about more than once, and after each joint large-diameter steel reinforced concrete ceiling coil joint socket docking can be made, sealing joint reliability test can be carried out at once, to guarantee that each joint heads into the large-diameter steel reinforced concrete ceiling coil interface of soil layer, its sealability all has reliable sealing configuration and technologic guarantee.
Have the all-steel sealing structure that the steel structure foundation trench socket of the O type rubber ring of global formation and bellmouth steel bushing constitute large-diameter steel reinforced concrete ceiling coil jointly, the dimensional accuracy and sealing intensity, sealing stability and the reliability that effectively improve push pipe interface obtain further raising.
The slow expanding sealing strips 6b of first slow expanding sealing strips 6a and second is located between socket steel bushing 3 and socket reinforced concrete 9, the slow expanding sealing strips 6b water-swellable of first slow expanding sealing strips 6a and second, play the effect of water-impervious, the sealing effect between socket steel bushing 3 and socket reinforced concrete 9 can be guaranteed.
Before large-diameter steel reinforced concrete ceiling coil cast concrete, by the slow expanding sealing strips 6b of the first slow expanding sealing strips 6a and second, be pasted in the groove inside socket steel bushing 3 in advance, so not only during pouring concrete, can prevent rubber strip from conjugating and damage, and by the formula of slow expanding sealing strips and the selection of cover coat, guarantee that it starts to expand after the presetting time of cast concrete, thus Sealing Stress is produced between socket steel bushing 3 and socket reinforced concrete 9, guarantee the reliability of sealing and necessary intensity.
The internal surface of bellmouth steel bushing 2 is provided with spacer bar two 5b and spacer bar three 5c, be provided with the 3rd slow expanding sealing strips 6c between spacer bar two 5b and spacer bar three 5c, the 3rd slow expanding sealing strips 6c is located between bellmouth steel bushing 2 and bellmouth reinforced concrete 14.
Socket steel bushing 3 end is provided with approaching face 15, and approaching face 15 is 30 ° with the angle of socket steel bushing 3 outer wall, is convenient to socket steel bushing 3 and smoothly inserts.
Socket steel bushing 3 front end is S-type, socket steel bushing 3 adopts hot rolled steel sleeve, the anti-top force intensity of large-diameter steel reinforced concrete ceiling coil socket is strengthened, thus the interface anti-top force intensity formed with bellmouth steel bushing 2 is symmetrical, this is very favourable to heavy caliber long-distance pipe jacking.Hot rolled steel sleeve also makes its necessary dimensional accuracy reaching O type rubber seal and bulk strength, rigidity requirement.
The utility model remains slurry injection pipe 7 and pressure testing pipe 8, and steel connecting reinforcement 4a and another connecting reinforcement 4b, ensure that the bulk strength of outlet structure.Connecting reinforcement 4a is connected with the reinforcement cage of large-diameter steel reinforced concrete ceiling coil with another connecting reinforcement 4b, enhances the location of socket steel bushing 3 and bulk strength and rigidity, ensure that the necessary circularity of foundation trench and Geometrical Tolerance Principle.
Claims (6)
1. the all-steel sealing interface of a large-diameter steel reinforced concrete ceiling coil, comprise bellmouth steel bushing and socket steel bushing, socket steel bushing inserts in bellmouth steel bushing, it is characterized in that: described socket steel bushing (3) is the global formation steel bushing that outer surface is provided with two foundation trenches, O type rubber seal (1a) and another O type rubber seal (1b) is respectively equipped with in two foundation trenches, the end face of O type rubber seal (1a) and another O type rubber seal (1b) is attached to the internal surface of bellmouth steel bushing (2), the internal surface of socket steel bushing (3) is provided with groove (13a) and another groove (13b), groove (13a) is between two foundation trenches, another groove (13b) is formed between the side of foundation trench and spacer bar one (5a), first slow expanding sealing strips (6a) is pasted onto in groove (13a), and around pressure testing pipe (8), second slow expanding sealing strips (6b) is pasted onto in another groove (13b), and around slurry injection pipe (7), the internal surface of socket steel bushing (3) is welded with connecting reinforcement (4a) and another connecting reinforcement (4b), connecting reinforcement (4a) is connected with the reinforcement cage of large-diameter steel reinforced concrete ceiling coil with another connecting reinforcement (4b).
2. the all-steel sealing interface of a kind of large-diameter steel reinforced concrete ceiling coil according to claim 1, is characterized in that: the described first slow expanding sealing strips (6a) and the second slow expanding sealing strips (6b) are located between socket steel bushing (3) and socket reinforced concrete (9).
3. the all-steel sealing interface of a kind of large-diameter steel reinforced concrete ceiling coil according to claim 1, it is characterized in that: the internal surface of described bellmouth steel bushing (2) is provided with spacer bar two (5b) and spacer bar three (5c), between spacer bar two (5b) and spacer bar three (5c), be provided with the 3rd slow expanding sealing strips (6c).
4. the all-steel sealing interface of a kind of large-diameter steel reinforced concrete ceiling coil according to claim 3, is characterized in that: the described the 3rd slow expanding sealing strips (6c) is located between bellmouth steel bushing (2) and bellmouth reinforced concrete (14).
5. the all-steel sealing interface of a kind of large-diameter steel reinforced concrete ceiling coil according to claim 1, it is characterized in that: described socket steel bushing (3) end is provided with approaching face (15), approaching face (15) is 30 ° with the angle of socket steel bushing (3) outer wall.
6. the all-steel sealing interface of a kind of large-diameter steel reinforced concrete ceiling coil according to claim 1, is characterized in that: described socket steel bushing (3) front end is S-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520890632.XU CN205136843U (en) | 2015-11-10 | 2015-11-10 | All steel sealed interface of heavy -calibre reinforced concrete push pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520890632.XU CN205136843U (en) | 2015-11-10 | 2015-11-10 | All steel sealed interface of heavy -calibre reinforced concrete push pipe |
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| CN205136843U true CN205136843U (en) | 2016-04-06 |
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| CN201520890632.XU Active CN205136843U (en) | 2015-11-10 | 2015-11-10 | All steel sealed interface of heavy -calibre reinforced concrete push pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299332A (en) * | 2015-11-10 | 2016-02-03 | 上海万朗管业有限公司 | All-steel sealing connector of large-caliber reinforced concrete top pipe |
-
2015
- 2015-11-10 CN CN201520890632.XU patent/CN205136843U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299332A (en) * | 2015-11-10 | 2016-02-03 | 上海万朗管业有限公司 | All-steel sealing connector of large-caliber reinforced concrete top pipe |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201306, C, building 1758, 319 Hong Kong Road, reed tide Town, Shanghai, Pudong New Area Patentee after: Shanghai Wanlang Water Technology Co.,Ltd. Address before: 201306, C, building 1758, 319 Hong Kong Road, reed tide Town, Shanghai, Pudong New Area Patentee before: SHANGHAI VERYLONG PIPE CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201306, C, building 1758, 319 Hong Kong Road, reed tide Town, Shanghai, Pudong New Area Patentee after: Shanghai wanlang Water Technology Group Co.,Ltd. Address before: 201306, C, building 1758, 319 Hong Kong Road, reed tide Town, Shanghai, Pudong New Area Patentee before: Shanghai wanlang Water Group Co.,Ltd. Address after: 201306, C, building 1758, 319 Hong Kong Road, reed tide Town, Shanghai, Pudong New Area Patentee after: Shanghai wanlang Water Group Co.,Ltd. Address before: 201306, C, building 1758, 319 Hong Kong Road, reed tide Town, Shanghai, Pudong New Area Patentee before: Shanghai Wanlang Water Technology Co.,Ltd. |