CN218116165U

CN218116165U - Bridge jacking device

Info

Publication number: CN218116165U
Application number: CN202222414893.7U
Authority: CN
Inventors: 董丞上
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-12-23
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses a bridge jacking device relates to jacking machine technical field, including bottom plate and hydraulic jack, hydraulic jack fixed connection is in the middle part at bottom plate top, and the equal first pillar of fixedly connected with in top four corners of bottom plate, and the outside of first pillar is provided with metal sleeve, and the logical groove that two symmetries set up is seted up on metal sleeve's surface, and the screw rod that two symmetries of outside fixedly connected with at first pillar top set up respectively in the inside in two logical grooves, and the outside cover of screw rod is equipped with the gasket, and the outside threaded connection of screw rod has fastening nut, and the gasket sets up in metal sleeve's surface, hydraulic jack's top is provided with the connecting plate, metal sleeve's top fixed connection is in the bottom surface of connecting plate, the middle part fixedly connected with stress column at connecting plate top, this kind of utility model, reduce the pressure that hydraulic jack bore, prevent hydraulic jack's jacking end deformation, avoid hydraulic jack's cylinder body impaired.

Description

Bridge jacking device

Technical Field

The utility model relates to a jacking machine technical field especially relates to a bridge jacking device.

Background

The bridge jacking is a novel bridge deviation rectifying technology which adopts jacking equipment such as a hydraulic jack and the like to lift the main bearing structure of the bridge on the premise of not changing the original bridge form, the bridge jacking adopts an integral hydraulic synchronous lifting scheme, namely, the original cast-in-place pile bearing is utilized, the connection among an original bridge deck pavement layer, a handrail, a sidewalk and beam slabs is not damaged, a 'liquid lifting' device is firstly used for integrally jacking the upper structure of the bridge, then the pillars below the piers and the table cap beams are cut off, then the 'liquid lifting' device is operated to integrally lift the bridge to the designed height, and finally, the upright columns are lengthened, and the reinforcing steel bars are vertically molded to pour the second-stage concrete.

At present, hydraulic jacks are commonly used for jacking existing bridges, but in the jacking process of the hydraulic jacks, due to the fact that the tonnage of the bridge is large, great pressure can be applied to the hydraulic jacks, the jacking ends of the hydraulic jacks can be deformed, or the internal cylinder bodies of the hydraulic jacks are damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a bridge jacking device.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a bridge jacking device, includes bottom plate and hydraulic jack, hydraulic jack fixed connection is in the middle part at bottom plate top, just the first pillar of the equal fixedly connected with in top four corners of bottom plate, the outside of first pillar is provided with metal sleeve, the logical groove that two symmetries set up is seted up on metal sleeve's surface, the screw rod that two symmetries set up at the outside fixedly connected with at first pillar top, two the screw rod sets up respectively in the inside in two logical grooves, the outside cover of screw rod is equipped with the gasket, just the outside threaded connection of screw rod has fastening nut, the gasket sets up in metal sleeve's surface.

Furthermore, a connecting plate is arranged at the top of the hydraulic jack, the top of the metal sleeve is fixedly connected to the bottom surface of the connecting plate, a stress column is fixedly connected to the middle of the top of the connecting plate, and a top plate is fixedly connected to the top of the stress column.

Further, the bottom of stress column sets up in the below of connecting plate, just the spread groove has been seted up to the bottom of stress column, hydraulic jack's jacking end fixedly connected with spliced pole, the spliced pole sets up in the inside of spread groove.

Furthermore, the through holes are formed in the connecting column and one side of the bottom of the metal sleeve, the pin shaft is fixedly arranged in the through holes, two screw holes are formed in the surface of the pin shaft, the surface of the connecting column and the surface of the bottom of the stress column, and screws are connected to the inner portions of the screw holes in a threaded mode.

Furthermore, second pillars are fixedly connected between the four corners of the bottom of the top plate and the four corners of the top of the connecting plate.

Furthermore, a plurality of reinforcing plates arranged in a W shape are fixedly connected to the edge between the top plate and the connecting plate.

Compared with the prior art, the beneficial effects of the utility model reside in that: through the cooperation of the first pillar, the metal sleeve, the screw rod, the gasket and the fastening nut that set up, after arriving appointed jacking height, overlap the gasket outside the screw rod to tighten fastening nut in the screw rod outside, can make the metal sleeve be fixed in outside the first pillar, carry out supporting operation to the connecting plate, reduce the pressure that hydraulic jack bore, prevent hydraulic jack's jacking end deformation, avoid hydraulic jack's cylinder body impaired.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic view of the overall structure of a bridge lifting device provided by the present invention;

fig. 2 is a structural diagram of a metal sleeve of a bridge jacking device provided by the utility model;

fig. 3 is the utility model provides a structure chart of bridge jacking device stress column.

In the figure: 1. a base plate; 2. a hydraulic jack; 3. a first support column; 4. a metal sleeve; 5. a connecting plate; 6. a top plate; 7. a through groove; 8. a screw; 9. a reinforcing plate; 10. a second support; 11. a gasket; 12. fastening a nut; 13. a stress column; 14. connecting columns; 15. connecting grooves; 16. a through hole; 17. a pin shaft; 18. and a screw hole.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention;

referring to fig. 1-3, a bridge jacking device comprises a bottom plate 1 and a hydraulic jack 2, wherein the hydraulic jack 2 is fixedly connected to the middle of the top of the bottom plate 1, four corners of the top of the bottom plate 1 are fixedly connected with first pillars 3, metal sleeves 4 are arranged on the outer sides of the first pillars 3, two symmetrically-arranged through grooves 7 are formed in the surfaces of the metal sleeves 4, two symmetrically-arranged screw rods 8 are fixedly connected to the outer sides of the tops of the first pillars 3, the two screw rods 8 are respectively arranged inside the two through grooves 7, gaskets 11 are sleeved on the outer sides of the screw rods 8, fastening nuts 12 are in threaded connection with the outer sides of the screw rods 8, and the gaskets 11 are arranged on the surfaces of the metal sleeves 4;

when hydraulic jack 2 begins work, and with roof 6 jacking to with the bridge contact in-process, connecting plate 5 upward movement should be followed to metal sleeve 4, behind the roof 6 contact bridge, screw rod 8 should be located the inside of leading to groove 7 bottom, earlier overlap on screw rod 8 gasket 11 this moment, then tighten fastening nut 12 again, can fix metal sleeve 4, it cooperates with first pillar 3 again, can play the auxiliary stay effect to hydraulic jack 2, reduce the pressure that hydraulic jack 2 bore.

Hydraulic jack 2's top is provided with connecting plate 5, metal sleeve 4's top fixed connection is in connecting plate 5's bottom surface, the middle part fixedly connected with stress column 13 at connecting plate 5 top, stress column 13's top fixedly connected with roof 6, stress column 13 acts as the adapting unit between connecting plate 5 and the roof 6, secondly can play the main supporting role to roof 6, when jacking work goes on, roof 6 can earlier with the bridge contact, because the top of roof 6 is trapezoidal, its pressure can be through the jacking point to dispersion all around, share the back through gusset plate 9 and second pillar 10, reduce the pressure that hydraulic jack 2 outputs received.

The bottom of stress column 13 sets up in the below of connecting plate 5, and stress column 13's bottom has seted up spread groove 15, and hydraulic jack 2's output fixedly connected with spliced pole 14, spliced pole 14 are used for being connected hydraulic jack 2 and stress column 13, and spliced pole 14 sets up in the inside of spread groove 15.

Through-hole 16 has all been seted up with one side of metal sleeve 4 bottom to the inside of spliced pole 14, the inside fixed of through-hole 16 is provided with round pin axle 17, the surface of round pin axle 17, two screw 18 have all been seted up on the surface of spliced pole 14 and the surface of stress column 13 bottom, the equal threaded connection in inside of two screw 18 has the screw, when connecting stress column 13 and spliced pole 14, align through-hole 16 earlier, then insert round pin axle 17 in through-hole 16, rotate round pin axle 17, align until between the screw 18, turn into the screw to screw 18 afterwards, can be fixed in through-hole 16 with round pin axle 17, and fix spliced pole 14 and stress column 13.

And second support columns 10 are fixedly connected between the four corners of the bottom of the top plate 6 and the four corners of the top of the connecting plate 5.

A plurality of reinforcing plates 9 which are arranged in a W shape are fixedly connected to the edge between the top plate 6 and the connecting plate 5, and the reinforcing plates 9 and the second pillars 10 are used for reinforcing the connection strength between the connecting plate 5 and the top plate 6 and can share the stress of the top plate 6 by a bridge.

Claims

1. The utility model provides a bridge jacking device, includes bottom plate (1) and hydraulic jack (2), its characterized in that, hydraulic jack (2) fixed connection is in the middle part at bottom plate (1) top, just the equal first pillar of fixedly connected with (3) in top four corners of bottom plate (1), the outside of first pillar (3) is provided with metal casing (4), logical groove (7) that two symmetries set up are seted up on the surface of metal casing (4), screw rod (8) that two symmetries of the outside fixedly connected with at first pillar (3) top set up, two screw rod (8) set up respectively in the inside of two logical grooves (7), the outside cover of screw rod (8) is equipped with gasket (11), just the outside threaded connection of screw rod (8) has fastening nut (12), gasket (11) set up in the surface of metal casing (4).

2. The bridge jacking device according to claim 1, wherein a connecting plate (5) is arranged at the top of the hydraulic jack (2), the top of the metal sleeve (4) is fixedly connected to the bottom surface of the connecting plate (5), a stress column (13) is fixedly connected to the middle of the top of the connecting plate (5), and a top plate (6) is fixedly connected to the top of the stress column (13).

3. The bridge jacking device as claimed in claim 2, wherein the bottom of the stress column (13) is arranged below the connecting plate (5), a connecting groove (15) is formed in the bottom of the stress column (13), a connecting column (14) is fixedly connected to the output end of the hydraulic jack (2), and the connecting column (14) is arranged inside the connecting groove (15).

4. The bridge jacking device as claimed in claim 3, wherein through holes (16) are formed in the connecting column (14) and one side of the bottom of the metal sleeve (4), a pin shaft (17) is fixedly arranged in each through hole (16), two screw holes (18) are formed in the surface of the pin shaft (17), the surface of the connecting column (14) and the surface of the bottom of the stress column (13), and screws are connected to the two screw holes (18) in a threaded manner.

5. A bridge lifting device as claimed in claim 2, characterised in that second struts (10) are fixedly connected between the four corners of the bottom of the top plate (6) and the four corners of the top of the connecting plate (5).

6. A bridge jacking device as claimed in claim 2, wherein a plurality of reinforcing plates (9) are fixedly connected to the edge between the top plate (6) and the connecting plate (5) in a W-shaped arrangement.