CN206545175U - Bridge jack support meanss - Google Patents
Bridge jack support meanss Download PDFInfo
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- CN206545175U CN206545175U CN201720211744.7U CN201720211744U CN206545175U CN 206545175 U CN206545175 U CN 206545175U CN 201720211744 U CN201720211744 U CN 201720211744U CN 206545175 U CN206545175 U CN 206545175U
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- jack
- steel slab
- embedded steel
- bridge
- cylinder
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Abstract
The utility model discloses a kind of bridge jack support meanss, including the upper pre-embedded steel slab and lower pre-embedded steel slab being embedded in beam body and bridge pier, lower carriage is fixedly installed on lower pre-embedded steel slab, lower bolster is provided between lower carriage, jack is provided with lower bolster, upper padding plate is connected with the top of jack, upper bracket is fixedly installed on upper pre-embedded steel slab, be provided with upper bracket withstand on upper padding plate sidepiece tighten bolt, the deep-slotted chip breaker for being provided with and being accommodated at the top of jack on the fastening bolt for withstanding on very heavy top side portion, upper padding plate lower surface is provided with lower carriage；The utility model in beam body and bridge pier by being respectively arranged with pre-embedded steel slab and lower pre-embedded steel slab, respectively symmetrically there are upper bracket and lower carriage on upper pre-embedded steel slab and lower pre-embedded steel slab, upper padding plate and jack are fixed respectively using the fastening bolt on upper bracket and lower carriage, be conducive to fixing jack, adjust very heavy topmast loading angle, in jack up girder, it is to avoid very heavy top support failure.
Description
Technical field
The utility model belongs to the technical field of the method or equipment that are exclusively used in setting up or assemble bridge, is specifically related to one
Plant bridge jack support meanss.
Background technology
Currently for the jack-up construction method of bridge, the outside of abutment or pier column cap structure is used in mostly, with
Bolt anchoring Support bracket mode, sets up the job platform for setting jack, however, the working security of such a construction,
Depending on the bolt and concrete strength at grappling, and bolt and concrete strength are by material category, with when local environment shadow
Ring influence very huge, moreover as used construction bracket to be supported for point, in jacking such as because difference conjugates bridge superstructure weight, meeting
Side is concentrated on because tilting transfer, the stress increase of construction bracket is caused, triggers very heavy top support failure, will probably be caused chain anti-
Should, cause crossstructure to be damaged.
The content of the invention
In view of this, the purpose of this utility model is to provide a kind of bridge jack support meanss, a kind of bridge
Jack with support meanss by being respectively arranged with pre-embedded steel slab and lower pre-embedded steel slab in beam body and bridge pier, in upper pre-buried steel
Respectively symmetrically there are upper bracket and lower carriage on plate and lower pre-embedded steel slab, it is solid respectively using the fastening bolt on upper bracket and lower carriage
Determine upper padding plate and jack, be conducive to fixing jack, jack loading angle adjusted, in jack up girder, it is to avoid jack
Support failure.
In order to achieve the above object, a kind of bridge jack support meanss of the utility model, including be embedded in beam body and
The lower branch of a pair of opposing is fixedly installed on upper pre-embedded steel slab and lower pre-embedded steel slab on bridge pier, the lower pre-embedded steel slab
It is provided between frame, the lower carriage on lower bolster, the lower bolster and is provided with jack, is connected with the top of the jack
It is fixedly installed to be provided with the upper bracket of a pair of opposing, the upper bracket on backing plate, the upper pre-embedded steel slab and is no less than
The fastening that very heavy top side portion is withstood on no less than a pair is provided with the bolt of tightening for withstanding on upper padding plate sidepiece a pair, the lower carriage
The deep-slotted chip breaker at the top of receiving jack is provided with bolt, the upper padding plate lower surface.
Further, the jack preferably includes flat oil cylinder, is arranged on the in-oil cylinder piston of flat and piston rod, institute
State piston and piston rod and flat oil cylinder be separated into rodless cavity and rod chamber, the piston and piston rod with flat oil cylinder casing wall
Between be respectively arranged with seal assembly I and seal assembly II, the rodless cavity is communicated with oil inlet pipe, the flat cylinder block
No less than 2 vertical fuel feed holes are evenly equipped with wall, the vertical fuel feed hole lower end is connected with rodless cavity, on the vertical fuel feed hole
End is connected by horizontal fuel feed hole with rod chamber, and the piston rod is set to 2~10mm with flat oil cylinder inner wall gap.
Further, the piston rod extends is fixed with horizontally disposed displacement detecting piece on the wall of flat oil cylinder end side,
Displacement detecting instrument corresponding with displacement detecting piece is provided with the outside of the flat oil cylinder.
Further, the flat oil cylinder includes integrally formed cylinder body and cylinder seat, and the cylinder body is close by sealing ring
It is enclosed on cylinder seat, the oil inlet pipe is connected on the wall of cylinder seat side.
Further, the cylinder seat is set to arcwall face positioned at the middle side part of rodless cavity one.
Further, the cylinder body bottom inside is provided with annular groove, and the vertical fuel feed hole is arranged in annular groove.
The beneficial effects of the utility model are：
1st, a kind of bridge jack of the utility model is pre- by being respectively arranged with beam body and bridge pier with support meanss
Steel plate and lower pre-embedded steel slab are buried, respectively symmetrically has upper bracket and lower carriage on upper pre-embedded steel slab and lower pre-embedded steel slab, using upper
Fastening bolt on support and lower carriage fixes upper padding plate and jack respectively, is conducive to fixing jack, adjustment jack by
Power angle, in jack up girder, it is to avoid very heavy top support failure；
2nd, a kind of bridge jack of the utility model with support meanss by being evenly equipped with not in flat cylinder block inwall
The vertical fuel feed hole interconnected less than 2 pairs and horizontal fuel feed hole, using vertical fuel feed hole and horizontal fuel feed hole by flat oil cylinder
Rod chamber connected with rodless cavity, make the oil-feed simultaneously of rod chamber and rodless cavity, using rod chamber formation back pressure and rod chamber and
The difference in areas of rodless cavity, being reached by controlling input pressure makes jack slowly rise or decline, it is to avoid jack cylinder
Fluctuation, it is to avoid bridge declines too fast, the security of raising bridge construction.
Brief description of the drawings
In order that the purpose of this utility model, technical scheme and beneficial effect are clearer, the utility model provides as follows
Accompanying drawing is illustrated：
Fig. 1 is a kind of structural representation of bridge jack support meanss of the utility model；
Fig. 2 is the front sectional view of jack in a kind of bridge jack support meanss of the utility model；
Fig. 3 is the vertical view cutaway drawing of jack in a kind of bridge jack support meanss of the utility model.
Reference：1- cylinder bodies；2- piston rods；3- pistons；4- cylinders seat；5- sealing rings；6- oil inlet pipes；7- rodless cavities；8-
Vertical fuel feed hole；The horizontal fuel feed holes of 9-；10- rod chambers；11- displacement detecting instrument；12- displacement detecting pieces；13- seal assemblies I；
14- seal assemblies II；15- beam bodies；The upper pre-embedded steel slabs of 16-；Pre-embedded steel slab under 17-；18- jack；19- upper padding plates；Propped up on 20-
Frame；21- lower carriages；22- lower bolsters；23- fastening bolts.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
It is a kind of structural representation of bridge jack support meanss of the utility model, the utility model as shown in Figure 1
A kind of bridge jack support meanss, including the upper pre-embedded steel slab 16 and lower pre-embedded steel slab being embedded in beam body 15 and bridge pier
17, it is fixedly installed on the lower pre-embedded steel slab 17 between the lower carriage 21 of a pair of opposing, the lower carriage 21 and is provided with
Jack 18 is provided with lower bolster 22, the lower bolster 22, the top of jack 18 is connected with upper padding plate 19, described pre-
Bury to be provided with the upper bracket 20 for being fixedly installed a pair of opposing on steel plate 16, the upper bracket 20 and withstand on no less than 1 Dui
The sidepiece of upper padding plate 19 tightens the fastening spiral shell for being provided with bolt, the lower carriage 21 and the sidepiece of jack 18 being withstood on no less than 1 pair
The deep-slotted chip breaker for accommodating the top of jack 18 is provided with bolt 23, the lower surface of upper padding plate 19.
The present embodiment in beam body and bridge pier by being respectively arranged with pre-embedded steel slab and lower pre-embedded steel slab, in upper pre-buried steel
Respectively symmetrically there are upper bracket and lower carriage on plate and lower pre-embedded steel slab, it is solid respectively using the fastening bolt on upper bracket and lower carriage
Determine upper padding plate and jack, be conducive to fixing jack, be conducive to adjusting very heavy topmast loading angle using deep-slotted chip breaker, in jacking
During beam body, it is to avoid very heavy top support failure.
It is illustrated in figure 2 the front sectional view of jack in a kind of bridge jack support meanss of the utility model；Such as
Fig. 3, which show jack described in the vertical view cutaway drawing of jack in a kind of bridge jack support meanss of the utility model, to be included
Flat oil cylinder, the in-oil cylinder piston 3 of flat and piston rod 2 are arranged on, flat oil cylinder is separated into by the piston 3 and piston rod 2
Rodless cavity 7 and rod chamber 10, the piston 3 and piston rod 2 are respectively arranged with seal assembly I13 between flat oil cylinder casing wall
With seal assembly II14, the rodless cavity 7 is communicated with oil inlet pipe 6, the inwall of flat cylinder block 1 and is evenly equipped with no less than 2
Individual vertical fuel feed hole 8, the vertical lower end of fuel feed hole 8 is connected with rodless cavity 7, and the vertical upper end of fuel feed hole 8 is entered by level
Oilhole 9 is connected with rod chamber 10, and the piston rod 2 is set to 2~10mm with flat oil cylinder inner wall gap.
The present embodiment by be evenly equipped with flat cylinder block inwall the vertical fuel feed hole interconnected no less than 2 pairs and
Horizontal fuel feed hole, the rod chamber of flat oil cylinder is connected, make rod chamber using vertical fuel feed hole with horizontal fuel feed hole with rodless cavity
With rodless cavity oil-feed simultaneously, back pressure and the difference in areas of rod chamber and rodless cavity are formed using rod chamber, by controlling into oil pressure
Power makes jack slowly rise or decline to reach, it is to avoid jack cylinder is fluctuated, it is to avoid bridge declines too fast, raising bridge
The security of construction.
Further, the piston rod 2 extends is fixed with horizontally disposed displacement detecting piece on the wall of flat oil cylinder end side
12, the flat oil cylinder outside is provided with displacement detecting instrument 11 corresponding with displacement detecting piece 12, and the structure is conducive to raising thousand
Jin top data accuracy, improves bridge construction security.
Further, the flat oil cylinder preferably includes integrally formed cylinder body and cylinder seat 4, and the cylinder body passes through close
Seal 5 is sealed on cylinder seat 4, and the oil inlet pipe 6 is connected on cylinder seat side wall, by bolt is passed through cylinder body in the structure close
Seal 5 is fixed on cylinder seat 4, is conducive to processing flat oil cylinder, is improved the intensity of flat oil cylinder.
Further, cylinder seat 4 preferably is set to arcwall face positioned at the middle side part of rodless cavity 7 one, and the structure is conducive to keeping away
Exempt from pressure oscillation during jacking, improve construction safety.
Further, the cylinder body bottom inside preferably is provided with annular groove, and the vertical fuel feed hole 7 is arranged at ring
In shape groove, the structure is conducive to flat cylinder structure simple, easy to process.
Finally illustrate, preferred embodiment above is only unrestricted to illustrate the technical solution of the utility model, to the greatest extent
The utility model is described in detail by above preferred embodiment for pipe, but those skilled in the art should manage
Solution, can make various changes, without departing from the utility model claims institute to it in the form and details
The scope of restriction.
Claims (6)
1. a kind of bridge jack support meanss, including the upper pre-embedded steel slab and lower pre-buried steel being embedded in beam body and bridge pier
Plate, it is characterised in that：It is fixedly installed between the lower carriage of a pair of opposing, the lower carriage and sets on the lower pre-embedded steel slab
It is equipped with lower bolster, the lower bolster and is provided with jack, upper padding plate, the upper pre-embedded steel slab is connected with the top of the jack
On be fixedly installed to be provided with the upper bracket of a pair of opposing, the upper bracket and withstand on upper padding plate sidepiece no less than 1 pair
Tighten the fastening bolt for being provided with bolt, the lower carriage and very heavy top side portion being withstood on no less than 1 pair, the upper padding plate lower surface
On be provided with accommodate jack at the top of deep-slotted chip breaker.
2. a kind of bridge jack support meanss as claimed in claim 1, it is characterised in that：The jack includes flat
Oil cylinder, be arranged on the in-oil cylinder piston of flat and piston rod, the piston and piston rod by flat oil cylinder be separated into rodless cavity and
Rod chamber, the piston and piston rod are respectively arranged with seal assembly I and seal assembly II, institute between flat oil cylinder casing wall
State rodless cavity and be communicated with oil inlet pipe, the flat cylinder block inwall and be evenly equipped with no less than 2 vertical fuel feed holes, it is described vertical
Fuel feed hole lower end is connected with rodless cavity, and the vertical fuel feed hole upper end is connected by horizontal fuel feed hole with rod chamber, the piston
Bar is set to 2~10mm with flat oil cylinder inner wall gap.
3. a kind of bridge jack support meanss as claimed in claim 2, it is characterised in that：The piston rod extends flat
It is fixed with the outside of horizontally disposed displacement detecting piece, the flat oil cylinder and is provided with and displacement detecting piece on the wall of shape oil cylinder end side
Corresponding displacement detecting instrument.
4. a kind of bridge jack support meanss as claimed in claim 2, it is characterised in that：The flat oil cylinder includes one
Body formed cylinder body and cylinder seat, the cylinder body are sealed on cylinder seat by sealing ring, and the oil inlet pipe is connected to cylinder seat side
On wall.
5. a kind of bridge jack support meanss as claimed in claim 4, it is characterised in that：The cylinder seat is located at rodless cavity
One middle side part is set to arcwall face.
6. a kind of bridge jack support meanss as claimed in claim 4, it is characterised in that：The cylinder body bottom inside
Annular groove is provided with, the vertical fuel feed hole is arranged in annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720211744.7U CN206545175U (en) | 2017-03-03 | 2017-03-03 | Bridge jack support meanss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720211744.7U CN206545175U (en) | 2017-03-03 | 2017-03-03 | Bridge jack support meanss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206545175U true CN206545175U (en) | 2017-10-10 |
Family
ID=59994463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720211744.7U Active CN206545175U (en) | 2017-03-03 | 2017-03-03 | Bridge jack support meanss |
Country Status (1)
| Country | Link |
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| CN (1) | CN206545175U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751026A (en) * | 2018-07-12 | 2018-11-06 | 肖松南 | A kind of jack and jacking apparatus for bridge jacking |
| CN110700113A (en) * | 2019-11-05 | 2020-01-17 | 中建交通建设集团有限公司 | Prestress applying device of non-prestressed beam bridge and construction method thereof |
-
2017
- 2017-03-03 CN CN201720211744.7U patent/CN206545175U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751026A (en) * | 2018-07-12 | 2018-11-06 | 肖松南 | A kind of jack and jacking apparatus for bridge jacking |
| CN110700113A (en) * | 2019-11-05 | 2020-01-17 | 中建交通建设集团有限公司 | Prestress applying device of non-prestressed beam bridge and construction method thereof |
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