CN218373403U

CN218373403U - Bridge beam supports changes mechanism

Info

Publication number: CN218373403U
Application number: CN202222442321.XU
Authority: CN
Inventors: 陈慧; 赵红星; 张伟建
Original assignee: Jining Highway Engineering Co; Jining Lunan Highway Engineering Co; Shandong Ludong Road And Bridge Co ltd
Current assignee: Jining Highway Engineering Co; Jining Lunan Highway Engineering Co; Shandong Ludong Road And Bridge Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-24
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses a bridge beam supports changes mechanism, including base, symmetry setting jacking ware on the base and the roof of setting in the base top, be equipped with the positioning mechanism who is used for fixing a position the jacking ware on the base, the base intermediate position is equipped with the pneumatic cylinder of releasing the support, pneumatic cylinder tailpiece of the piston rod end is equipped with the push pedal. During maintenance, the base is conveyed between the bridge pier and the bridge body, the two lifters are started, the top plate moves upwards to jack the bridge body, and then the piston rod of the hydraulic cylinder extends out to push the support out. The counterforce that the jacking ware received passes through the base and transmits pier department, reduces the single-point atress of pier department, prevents that the pier from damaging. The support is pushed out through the extension of the piston rod of the hydraulic cylinder, the supporting legs do not need to be pushed out manually, and the labor intensity is reduced.

Description

Bridge beam supports changes mechanism

Technical Field

The utility model belongs to the technical field of the road bridge construction technique and specifically relates to a mechanism is changed to bridge beam supports.

Background

The bridge bearing is arranged between the upper structure and the abutment and is mainly used for transmitting each load of the upper structure to the abutment. However, after long-term use, the support is deformed due to the overlarge stress at the support, the bearing capacity is reduced, and the support needs to be replaced. The existing support replacing mode adopts a plurality of lifters to support a bridge body, and then the support is manually taken down to be replaced. This approach has the following problems: 1. the jacking device disperses bulk materials, the stress area of the bridge pier is small, the bridge pier is easy to damage, 2, the weight of the cushion block is large, the cushion block is manually taken down, and the labor intensity is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem, provide a mechanism is changed to bridge beam supports, increase the pier atress area among the jacking process, prevent to damage the pier, can release the cushion is automatic simultaneously, reduce intensity of labour.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a bridge beam supports changes mechanism, includes that base, symmetry set up the jacking ware on the base and set up the roof in the base top, be equipped with the positioning mechanism who is used for fixing a position the jacking ware on the base, the base both ends are equipped with the stand, sliding connection between roof both ends and the stand, the base intermediate position is equipped with the pneumatic cylinder that releases the support, pneumatic cylinder tailpiece of the piston rod end is equipped with the push pedal.

Furthermore, two cross beams are arranged on the base at positions corresponding to the jacking devices.

Furthermore, the positioning mechanism comprises a positioning head for positioning the rear end of the jacking device and a positioning bolt for positioning the front end of the jacking device, the positioning head is fixed on the cross beam, and the positioning bolt is connected with the cross beam through threads.

Furthermore, the upper end of the upright post is provided with a guide rod, and two ends of the top plate are provided with guide sleeves matched with the guide rod.

Further, the upper end of the top plate is provided with an I-shaped steel, and the I-shaped steel is connected with the top plate through a bolt.

Further, the push plate is arc-shaped.

The utility model has the advantages that:

1. the utility model discloses a jacking ware and the roof of setting in the base top of base, symmetry setting on the base, be equipped with the positioning mechanism who is used for fixing a position the jacking ware on the base, the base intermediate position is equipped with the pneumatic cylinder of releasing the support, pneumatic cylinder tailpiece of the piston rod end is equipped with the push pedal. During maintenance, the base is carried between the bridge pier and the bridge body, the two lifters are started, the top plate moves upwards to jack the bridge body, and then the piston rod of the hydraulic cylinder extends out to push the support out. The counterforce that the jacking ware received passes through the base and transmits pier department, reduces the single-point atress of pier department, prevents that the pier from damaging. The support is pushed out through the extension of the piston rod of the hydraulic cylinder, the supporting legs do not need to be pushed out manually, and the labor intensity is reduced.

2. The utility model discloses be equipped with the roof above the base, the base both ends are equipped with the stand, sliding connection between roof both ends and the stand through the roof jacking pontic, reduces the single-point atress of pontic department, prevents to damage the pontic.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a schematic structural diagram of the present invention.

In the figure: the device comprises a base 1, a jacking device 2, a top plate 3, a stand column 4, a hydraulic cylinder 5, a push plate 6, a cross beam 7, a positioning head 8, a positioning bolt 9, a guide rod 10, a guide sleeve 11 and an I-shaped steel 12.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

As shown in fig. 1 and 3, a bridge beam supports changes mechanism, including base 1, the symmetry sets up jacking ware 2 on base 1 and the roof 3 of setting in base 1 top, in this embodiment, jacking ware 2 is equipped with two, be equipped with the positioning mechanism who is used for fixing a position jacking ware 2 on base 1, base 1 both ends are equipped with stand 4, sliding connection between 3 both ends of roof and the stand 4, base 1 intermediate position is equipped with the pneumatic cylinder 5 of releasing the support, the piston rod end of pneumatic cylinder 5 is equipped with push pedal 6.

During maintenance, the base 1 is carried between the bridge pier and the bridge body, the two lifters 2 are started, the top plate 3 moves upwards to jack the bridge body, and then the piston rod of the hydraulic cylinder 5 extends out to push out the support. The counterforce that jacking ware 2 received transmits pier department through base 1, reduces the single-point atress of pier department, prevents that the pier from damaging. Jacking the bridge body through the top plate 3, reducing single-point stress at the bridge body and preventing the bridge body from being damaged. The support is pushed out through the extension of the piston rod of the hydraulic cylinder 5, the supporting leg does not need to be pushed out manually, and the labor intensity is reduced.

As shown in fig. 1, two beams 7 are arranged on the base 1 at positions corresponding to the lifters 2, and the lifters 2 are mounted on the beams 7.

As shown in fig. 1 and 3, the positioning mechanism includes a positioning head 8 for positioning the rear end of the jack 2 and a positioning bolt 9 for positioning the front end of the jack 2, each jack 2 corresponds to two positioning heads 8 and two positioning bolts 9, the positioning heads 8 are fixed on the cross beam 7, and the positioning bolts 9 are connected with the cross beam 7 through threads. During operation, at first place jacking ware 2 on two crossbeams 7 of homonymy to make 2 rear ends of jacking ware and the contact of locating head 8, later unscrew positioning bolt 9 location 2 front sides of jacking ware, thereby realize the fixed of 2 positions of jacking ware.

As shown in fig. 1 and fig. 2, a guide rod 10 is arranged at the upper end of the upright post 4, guide sleeves 11 matched with the guide rod 10 are arranged at two ends of the top plate 3, the guide rod 10 guides the top plate 3 to lift, the lower end of each guide sleeve 11 is contacted with the upper end of the upright post 4, and the upright post 4 positions the limit position of the guide sleeve 11 to move downwards, so that the jacking device 2 is prevented from being crushed.

As shown in fig. 1 and 2, the upper end of the top plate 3 is provided with an i-steel 12, the i-steel 12 is connected with the top plate 3 through a bolt, whether an i-steel is installed or not can be judged according to the size of the interval between the bridge body and the pier, and the stroke requirement of the jacking device 2 is reduced.

As shown in fig. 3, the push plate 6 has an arc shape.

In the description of the present invention, it should be noted that the terms "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be mechanically or electrically connected, directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Claims

1. The utility model provides a bridge beam supports changes mechanism, its characterized in that, sets up jacking ware (2) and roof (3) of setting in base (1) top on base (1) including base (1), symmetry, be equipped with the positioning mechanism who is used for fixing a position jacking ware (2) on base (1), base (1) both ends are equipped with stand (4), sliding connection between roof (3) both ends and stand (4), base (1) intermediate position is equipped with pneumatic cylinder (5) of releasing the support, pneumatic cylinder (5) tailpiece of the piston rod is equipped with push pedal (6).

2. A bridge beam support changing mechanism according to claim 1, characterized in that two cross beams (7) are provided on the base (1) at positions corresponding to the jacks (2).

3. A bridge support replacing mechanism according to claim 2, wherein the positioning mechanism comprises a positioning head (8) for positioning the rear end position of the jack (2) and a positioning bolt (9) for positioning the front end position of the jack (2), the positioning head (8) is fixed on the cross beam (7), and the positioning bolt (9) is in threaded connection with the cross beam (7).

4. A bridge bearer changing mechanism according to claim 1, wherein the upper end of the upright (4) is provided with a guide rod (10), and the two ends of the top plate (3) are provided with guide sleeves (11) matched with the guide rod (10).

5. The bridge bearer replacing mechanism according to claim 1, wherein the top plate (3) is provided with an I-shaped steel (12) at the upper end, and the I-shaped steel (12) is connected with the top plate (3) through a bolt.

6. A bridge bearer replacement mechanism according to claim 1, wherein the push plate (6) is arcuate.