CN208381548U - A kind of RC pipejacking tube coupling connector - Google Patents
A kind of RC pipejacking tube coupling connector Download PDFInfo
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- CN208381548U CN208381548U CN201820966700.XU CN201820966700U CN208381548U CN 208381548 U CN208381548 U CN 208381548U CN 201820966700 U CN201820966700 U CN 201820966700U CN 208381548 U CN208381548 U CN 208381548U
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- tube coupling
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- pipejacking
- bellmouth
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Abstract
The utility model relates to trenchless engineering pipe-jacking technology fields, more particularly to a kind of RC pipejacking tube coupling connector, interface between adjacent preceding tube coupling and rear tube coupling, including at least the bellmouth steel collar for being located at preceding tube coupling rear end outer wall and positioned at the socket steel ring of rear tube coupling front end outer wall, socket steel ring is equipped with the above annular groove together, annular groove is embedded with the olecranon rubber ring of annular, bellmouth steel collar and socket steel ring pass through fixed steel bars and are connected on reinforcement cage skeleton, bellmouth steel collar, the joint gap position of socket steel ring and fixed steel bars is equipped with water expandable waterstop；The mutual corresponding annular groove in position is had in the middle part of preceding tube coupling and the tube wall of rear tube coupling contact face, is equipped with water expandable waterstop in two annular grooves, and elastic sheeting caps is equipped between preceding tube coupling and rear tube coupling contact face.The technical program can fully meet the needs that electric power push pipe etc. has high waterproof requirement engineering, and the complicated constructions environment such as can adapt to high hydraulic pressure, soft stratum.
Description
Technical field
The utility model relates to trenchless engineering pipe-jacking technology fields more particularly to a kind of RC pipejacking tube coupling to connect
Head.
Background technique
In recent years, with the quickening of social modernization's process, trenchless technology especially pipe-jacking technology is promptly pushed away
Wide and application.Pipe-jacking technology is widely used in municipal works field, and wherein electric power push pipe is laid with for the underground crossing of cable,
Based on Large-diameter Steel reinforced concrete pipe, interface form is mainly F fashioned iron bellmouth.Waterproof of the electric power jacking construction to tube coupling connector
Performance requirement is high, but occurs the case where tube coupling connector leak in numerous engineering projects.Especially high hydraulic pressure flabbily
Layer, traditional wedge-shaped rubber circle or O-ring can not bear enough hydraulic pressure and achieve the effect that be fully sealed, such as China is real
It is exactly wedge-shaped rubber circle with what is used in new patent " jacking pipe joints joint waterproofing structure " (CN201420365024).In addition,
Due to the differential settlement of pipeline, the compression unevenness on the one hand easily causing sealing rubber ring weakens its sealing effect, separately
On the one hand can then biggish load action be generated to tube coupling bellmouth steel collar, steel bushing annular strain is caused to hinder tube coupling jacking construction.
Summary of the invention
To solve the above-mentioned problems, need to design a kind of connector for adapting to seal demand in tube coupling jack-in process.
Technical solution provided by the utility model is a kind of RC pipejacking tube coupling connector, positioned at adjacent preceding tube coupling
With the interface between rear tube coupling, including at least the bellmouth steel collar for being located at preceding tube coupling rear end outer wall and it is located at outside rear tube coupling front end
The socket steel ring of wall, socket steel ring be equipped with together the above annular groove, annular groove be embedded with annular rubber ring, preceding tube coupling and
Tube coupling is equipped with reinforcement cage skeleton afterwards, and bellmouth steel collar and socket steel ring pass through fixed steel bars and be connected on reinforcement cage skeleton,
The rubber ring is olecranon rubber ring, and it is swollen that the joint gap position of bellmouth steel collar, socket steel ring and fixed steel bars is equipped with chance water
Swollen sealing rod；The mutual corresponding annular groove in position, two rings are had in the middle part of preceding tube coupling and the tube wall of rear tube coupling contact face
It is equipped with water expandable waterstop in shape slot, elastic sheeting caps is equipped between preceding tube coupling and rear tube coupling contact face.
Moreover, preceding tube coupling and rear tube coupling inner wall are respectively provided with a steel collar, steel collar includes at least the steel loop and ring of annular
The beam slab of shape, beam slab are located on the inside of steel loop, and the adjacent side of two steel loops offers the mutual corresponding groove of notch respectively, and two
A high elastic rubber plate is equipped in groove, the gap between the high elastic rubber plate and two grooves is filled out respectively equipped with tile
Pressing steel plate；Beam slab front and rear sides are uniformly distributed floor, and beam slab is provided with bolt hole, and the position of floor and bolt hole is interlaced,
Preceding tube coupling is corresponded to each other with the bolt hole position on rear tube coupling beam slab, and mutual corresponding bolt hole is connected by bolt and nut.
Moreover, the high elastic rubber plate surface is coated with sealing material, high elastic rubber plate and tile pressing steel plate
The sum of thickness is thicker than groove width of rebate, and the high elastic rubber plate, tile pressing steel plate and groove notch are interference fitted.
Moreover, one end of tile pressing steel plate is provided with baffle, tile pressing steel plate longitudinal section is L-shaped, transversal
Face is arc-shaped.
Moreover, elastic sheeting caps outer circumference surface extends to bellmouth steel collar inner wall, elastic sheeting caps and bellmouth steel bushing interannular
Sealing material is filled at gap.
Moreover, the gap location between bellmouth steel collar and preceding tube coupling is filled with sealing material.
Moreover, olecranon rubber ring gradually thickens from top to lip, the lip of olecranon rubber ring is in olecranon type and after
Tube coupling rear end.
Moreover, being parallel with bellmouth steel collar after olecranon rubber ring and the edge portions compression that bellmouth steel collar is in contact
Plane.
Moreover, socket steel ring is equipped with injected hole, the injected hole is connected with Grouting Pipe.
Compared with prior art, the beneficial effect of the technical solution is: 1, in the base of traditional steel bellmouth joint form
On plinth, using the olecranon rubber ring of optimization, olecranon rubber ring lip is obviously deepened relative to the lip of traditional rubber ring, olecranon rubber
Cushion rubber can reduce the region of stress concentration that rubber ring lip position and top and bellmouth steel collar contact site generate, and avoid installing
Power is excessive to cause rubber ring to destroy；2, when connector is in level of ground water hereinafter, the effect of water pressure can make olecranon rubber ring lip
It opens, increases olecranon rubber ring and bellmouth steel collar contact pressure, improve sealing performance；3, bellmouth steel collar, socket steel ring with
The joint gap position of fixed steel bars is pasted with water expandable waterstop, the interior stickup of the tube wall of preceding tube coupling and rear tube coupling contact face
There is water expandable waterstop, in tube coupling contact surface before and after having water infiltration, water expandable waterstop can play water-stagnating effect, prevent
Tube coupling contacts sweat；4, when having the case where water leaks, hydraulic pressure can make tile pressing steel plate squeeze high elastic rubber
Plate realizes notch sealing, to keep front and back tube coupling inner wall completely enclosed, reaches the purpose of leak stopping；5, there are gaps for tube coupling connector
Position is filled with sealing material, strengthens sealing anti-seepage effect；6, preceding tube coupling and rear tube coupling inner wall are provided with inner band beam
The steel collar of plate, steel collar are fixedly connected by bolt nut structure, can reduce tube coupling connector steel in pipeline differential settlement
Lantern ring stress deformation guarantees the smooth jacking of tube coupling；7, when pipeline is rectified a deviation, the elastic journey of adjusting two end nut of bolt can be passed through
Degree adapts to the deflection angle between the tube coupling of front and back, and can prevent from excessively rectifying a deviation, while can be applied to curved jacking；8, inner band beam
The steel collar of plate has the function of that the preceding tube coupling of limitation and rear tube coupling are displaced, and preceding tube coupling will not occur under external force with rear tube coupling
The case where contact face misplaces.The technical program can fully meet the needs that electric power push pipe etc. has high waterproof requirement engineering,
And the complicated constructions environment such as can adapt to high hydraulic pressure, soft stratum.
Detailed description of the invention
Fig. 1 is the top schematic cross-section of the utility model a kind of tube coupling connector and tube coupling tube wall；
Fig. 2 is the schematic cross-section that a kind of tube coupling connector of the utility model contains slip casting tube portion；
Fig. 3 is two steel collars of the utility model and the top schematic cross-section of bolt fastening structure；
Fig. 4 is the steel loop and beam slab overall schematic of the inner band beam slab of the utility model；
Fig. 5 is the steel loop 1-1 ' cross-sectional view of the inner band beam slab of the utility model；
Fig. 6 is the steel loop 2-2 ' cross-sectional view of the inner band beam slab of the utility model；
Fig. 7 is the tile pressing steel plate schematic diagram of the utility model；
Fig. 8 is conventional wedge rubber ring cross-sectional view；
Fig. 9 is olecranon rubber ring cross-sectional view；
Description of symbols: 1- bellmouth steel collar, 2- socket steel ring, 3- olecranon rubber ring, 4- water expandable waterstop, 5-
Bi-component polysulfide sealing compound, 6- elasticity sheeting caps, 7- fixed steel bars, tube coupling before 8-, tube coupling after 9-, 10- injected hole, 11- slip casting
It manages, 12- screw, 13- gasket seal, 14- pea gravel concreten, the steel collar of tube coupling inner band beam slab before 15-, after 16- in tube coupling
Steel collar of the side with beam slab, 17- high elastic rubber plate, 18- tile pressing steel plate, 19- bolt, 20- nut, 21- steel loop,
22- beam slab, floor before 23-, floor after 24-, 25- bolt hole, 26- lip.
Specific embodiment
The utility model is illustrated in detail with reference to the accompanying drawings and examples, the content of the utility model not office
It is limited to following embodiment.
A kind of RC pipejacking tube coupling connector provided by the utility model contacts section and pipe from tube coupling outer wall, tube coupling
It saves inner wall and comprehensive sealing is carried out to tube coupling, tube coupling and tube coupling connector are integrally ring-shaped, and are that a kind of reinforcing bar is mixed shown in Fig. 1
The topmost schematic cross-section of soil jacking pipe joints connector and front and back tube coupling tube wall is coagulated, is successively tube coupling from top to bottom in the schematic diagram
Outer wall section, tube coupling contact section part and tube coupling inner wall section.A kind of RC pipejacking tube coupling connector is located at adjacent
Interface between preceding tube coupling 8 and rear tube coupling 9 including at least the bellmouth steel collar 1 for being located at preceding tube coupling rear end and is located at adjacent
Rear tube coupling front end socket steel ring 2, preceding tube coupling and rear tube coupling be equipped with reinforcement cage skeleton, and bellmouth steel collar and socket steel ring are equal
It is connected on reinforcement cage skeleton by fixed steel bars 7, socket steel ring is equipped with bipassage ring at the position being in contact with bellmouth steel collar
Connected in star, annular groove is embedded with the olecranon rubber ring 3 of annular, between bellmouth steel collar, socket steel ring and the connection of fixed steel bars
Gap position is pasted with water expandable waterstop 4, and the gap filling between bellmouth steel collar and preceding tube coupling concrete tube wall has double groups
Divide polysulfide sealing compound 5, the utility model passes through bellmouth steel collar, socket steel ring and the olecranon in socket steel ring annular groove
Rubber ring is sealed tube coupling outer wall.
The top of olecranon rubber ring is towards the contact face of front and back tube coupling, and the lip of olecranon rubber ring 3 is towards after rear tube coupling
End, olecranon rubber ring gradually thicken from top to lip, and the lip of olecranon rubber ring is in olecranon type.As shown in figure 8, conventional wedge
Rubber ring lip form is arc-shaped, and olecranon rubber ring shown in Fig. 9 obviously adds compared to conventional wedge rubber ring lip 26
Deep, lip form changes.The distance between the lip of olecranon rubber ring and top are shorter, and the seamed edge of olecranon rubber ring is longer.
The olecranon rubber ring belongs to self-tightening type, and rubber ring generates certain compressive deformation in tube coupling installation process, makes it and connects
Head rigid face fits closely generation contact pressure, under real use state, rib that olecranon rubber ring is in contact with bellmouth steel collar
Rim portion is pressed into the plane parallel with bellmouth steel collar by external force；Olecranon rubber ring can reduce rubber ring lip during the installation process
The region of stress concentration that oral area position and top and bellmouth steel collar contact site generate avoids installing force is excessive from causing rubber ring broken
Bad, when connector is in level of ground water hereinafter, effect of water pressure makes its opening in olecranon rubber ring lip, lip position is in water pressure
Under the action of open after be capable of increasing contact pressure with bellmouth steel collar, improve sealing performance.
As shown in Fig. 2, socket steel ring 2 reserves injected hole 10, RC pipejacking tube coupling connector can be stayed when actual fabrication
There is 2-3 injected hole for testing sealing effect, injected hole is connected with Grouting Pipe 11, and Grouting Pipe is adopted close to the end of tube coupling inner wall
Gasket 13 is encrypted with screw 12 to block, when test sealing effect terminates, can be smoothed out using pea gravel concreten 14 after the completion of slip casting,
Seal injected hole and Grouting Pipe.
As shown in Figure 1, having the mutual corresponding annular in position in the middle part of preceding tube coupling and the tube wall of rear tube coupling contact face
Slot, annular groove is interior to be equipped with water expandable waterstop 4, and an elastic sheeting caps 6 is equipped between preceding tube coupling and rear tube coupling contact face,
The utility model is sealed tube coupling contact face by the water expandable waterstop in annular groove, elastic in jack-in process
Sheeting caps can play the role of buffering top power, reduce the destruction to concrete tube wall.
Under normal circumstances, the sealing structures such as above-mentioned bellmouth steel collar and socket steel ring can meet waterproof sealing demand, this
Utility model furthermore presents the scheme being sealed in tube coupling inner wall: in Fig. 1 the amplified steel collar of dotted box portion and
The top section of bolt fastening structure is as shown in figure 3, preceding tube coupling and rear tube coupling inner wall are respectively provided with a steel collar, and steel collar is at least
Including annular a steel loop 21 and beam slab 22, beam slab is located on the inside of steel loop, and the adjacent side of two steel loops offers slot respectively
The mutual corresponding groove of mouth, notch is interior to be arranged a high elastic rubber plate 17, and between high elastic rubber plate and two grooves
Gap squeezes high elastic rubber plate using tile pressing steel plate 18 and is sealed.One end of tile pressing steel plate is provided with gear
Plate, tile pressing steel plate longitudinal section is L-shaped, and cross section is arc-shaped, as shown in Figure 7.Front and back tube coupling 8,9 tube wall medial gaps
It is bonded 17 surface of high elastic rubber plate and coats bi-component polysulfide sealing compound 5.The utility model passes through the steel bushing positioned at tube coupling inner wall
Ring is sealed tube coupling inner wall.
High elastic rubber plate thickness is less than groove width of rebate, and rubber board width is slightly larger than twice and notch of depth of rebate
Between apart from sum, use this interference fit to adapt to tube coupling correction；It is set in steel bushing annular groove mouth described in the tube coupling of front and back
It is equipped with tile pressing steel plate, for squeezing high elastic rubber plate, the pressing steel plate is obtained by doughnut-shaped steel plate equal part, and steel plate is long
Degree is identical as depth of rebate, and thickness is less than groove width of rebate, but high elastic rubber plate and the tile pressing steel plate thickness
The sum of be slightly larger than width of rebate, the practical structure for interference fit more can increase leakproofness.
Fig. 4 is the steel loop and beam slab overall schematic of inner band beam slab, steel loop 1-1 ' cross-sectional view such as Fig. 5 institute in Fig. 4
Show, steel loop 2-2 ' cross-sectional view in Fig. 4 is as shown in fig. 6, beam slab two sides are respectively arranged with preceding floor 23, rear floor 24 and bolt
Hole 25；Preceding floor 23, rear floor 24 and bolt hole 25 are arranged along beam slab circle distribution, and the position of floor and bolt hole is mutually handed over
Mistake setting；Preceding tube coupling is corresponded to each other with the bolt hole position on rear tube coupling beam slab, is interspersed with bolt 19 in bolt hole, on bolt 19
Four nuts 20 are set.The quantity of position, Bolt sizes and bolt hole and floor setting is arranged in beam slab and position can foundation
Specific embodiment is reasonably adjusted.
When needing to carry out tube coupling correction in jack-in process, it can be adapted to by adjusting the tightness of two end nut of bolt
Deflection angle between the tube coupling of front and back adapts to different tube coupling deviation adjustment angles, and can prevent from excessively rectifying a deviation, while can be applied to song
Line jacking.Steel collar is fixedly connected by bolt nut structure, can reduce tube coupling connector steel collar in pipeline differential settlement
Stress deformation guarantees the smooth jacking of tube coupling；Steel collar also has the function of that the preceding tube coupling of limitation and rear tube coupling are displaced, and preceding tube coupling is with after
Tube coupling will not be in contact the case where end surface dislocation under external force.The technical program can fully meet the tool such as electric power push pipe
The complicated constructions environment such as there are the needs of high waterproof requirement engineering, and can adapt to high hydraulic pressure, soft stratum.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, in this reality
With in novel range of the technology design, a variety of simple variants can be carried out to the technical solution of the utility model, these simple changes
Type belongs to the protection scope of the utility model.
Claims (9)
1. a kind of RC pipejacking tube coupling connector, the interface between adjacent preceding tube coupling and rear tube coupling, are at least wrapped
The socket steel ring positioned at the bellmouth steel collar of preceding tube coupling rear end outer wall and positioned at rear tube coupling front end outer wall is included, socket steel ring is equipped with one
The above annular groove in road, annular groove are embedded with the rubber ring of annular, it is characterised in that: preceding tube coupling and rear tube coupling are equipped with reinforcing bar
Cage skeleton, bellmouth steel collar and socket steel ring pass through fixed steel bars and are connected on reinforcement cage skeleton, and the rubber ring is olecranon
The joint gap position of rubber ring, bellmouth steel collar, socket steel ring and fixed steel bars is equipped with water expandable waterstop；Preceding tube coupling with
The mutual corresponding annular groove in position is had in the middle part of the tube wall of tube coupling contact face afterwards, is equipped with water-swellable in two annular grooves
Sealing rod is equipped with elastic sheeting caps between preceding tube coupling and rear tube coupling contact face.
2. RC pipejacking tube coupling connector according to claim 1, it is characterised in that: preceding tube coupling and rear tube coupling inner wall
It is respectively provided with a steel collar, steel collar includes at least the steel loop of annular and the beam slab of annular, beam slab are located on the inside of steel loop, two steel
The adjacent side of ring offers the mutual corresponding groove of notch respectively, and a high elastic rubber plate is equipped in two grooves, described
Gap between high elastic rubber plate and two grooves is filled out respectively equipped with tile pressing steel plate；Beam slab front and rear sides are uniformly distributed rib
Plate, beam slab are provided with bolt hole, and the position of floor and bolt hole is interlaced, the bolt hole position on preceding tube coupling and rear tube coupling beam slab
It corresponds to each other, mutual corresponding bolt hole is connected by bolt and nut.
3. RC pipejacking tube coupling connector according to claim 2, it is characterised in that: the high elastic rubber plate table
Face is coated with sealing material, and the sum of high elastic rubber plate and tile pressing steel plate thickness are thicker than groove width of rebate, the height
Elastic rubber slab, tile pressing steel plate and groove notch are interference fitted.
4. RC pipejacking tube coupling connector according to claim 2, it is characterised in that: the one of tile pressing steel plate
End is provided with baffle, and tile pressing steel plate longitudinal section is L-shaped, and cross section is arc-shaped.
5. RC pipejacking tube coupling connector according to claim 1, it is characterised in that: elastic sheeting caps outer circumference surface
Bellmouth steel collar inner wall is extended to, elastic sheeting caps and bellmouth steel collar gap location are filled with sealing material.
6. RC pipejacking tube coupling connector according to claim 1, it is characterised in that: bellmouth steel collar and preceding tube coupling
Between gap location be filled with sealing material.
7. RC pipejacking tube coupling connector according to claim 1, it is characterised in that: olecranon rubber ring from top to
Lip gradually thickens, and the lip of olecranon rubber ring is in olecranon type and towards rear tube coupling rear end.
8. RC pipejacking tube coupling connector according to claim 1, it is characterised in that: olecranon rubber ring and bellmouth steel
The edge portions that lantern ring is in contact are the plane parallel with bellmouth steel collar after being pressurized.
9. RC pipejacking tube coupling connector according to claim 1, it is characterised in that: socket steel ring is equipped with slip casting
Hole, the injected hole are connected with Grouting Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820966700.XU CN208381548U (en) | 2018-06-21 | 2018-06-21 | A kind of RC pipejacking tube coupling connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820966700.XU CN208381548U (en) | 2018-06-21 | 2018-06-21 | A kind of RC pipejacking tube coupling connector |
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| Publication Number | Publication Date |
|---|---|
| CN208381548U true CN208381548U (en) | 2019-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820966700.XU Active CN208381548U (en) | 2018-06-21 | 2018-06-21 | A kind of RC pipejacking tube coupling connector |
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| Country | Link |
|---|---|
| CN (1) | CN208381548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322458A (en) * | 2020-03-18 | 2020-06-23 | 长江勘测规划设计研究有限责任公司 | Pipe jacking interface structure for improving longitudinal rigidity and construction method thereof |
| CN113639097A (en) * | 2021-08-13 | 2021-11-12 | 中亿丰建设集团股份有限公司 | Multi-curve small-radius micro-disturbance pipe gallery pipe jacking construction method |
-
2018
- 2018-06-21 CN CN201820966700.XU patent/CN208381548U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322458A (en) * | 2020-03-18 | 2020-06-23 | 长江勘测规划设计研究有限责任公司 | Pipe jacking interface structure for improving longitudinal rigidity and construction method thereof |
| CN113639097A (en) * | 2021-08-13 | 2021-11-12 | 中亿丰建设集团股份有限公司 | Multi-curve small-radius micro-disturbance pipe gallery pipe jacking construction method |
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