CN213389719U

CN213389719U - Jacking suitable for assembled support

Info

Publication number: CN213389719U
Application number: CN202021207414.9U
Authority: CN
Inventors: 李玲玉; 黄灿; 丁志刚; 陈松洲
Original assignee: Road and Bridge International Co Ltd; China Communication South Road and Bridge Co Ltd
Current assignee: Road and Bridge International Co Ltd; China Communication South Road and Bridge Co Ltd
Priority date: 2020-06-25
Filing date: 2020-06-25
Publication date: 2021-06-08
Anticipated expiration: 2030-06-25

Abstract

The utility model relates to a top support suitable for an assembly type support, which comprises a stand column, wherein the stand column adopts double-spliced channel steel, a threaded sleeve with the same height as the stand column is arranged between two channel steel webs, a rectangular bottom plate is welded at the bottom of the stand column, a top plate is welded at the top of the stand column, and the bottom and the top of the threaded sleeve are respectively welded with the top surface of the bottom plate and the bottom surface of the top plate; a bolt hole is respectively arranged on the bottom plate corresponding to 4 corners, and a positioning hole is arranged in the middle of the bottom plate; a through hole with the same inner diameter as the threaded sleeve is arranged in the middle of the top plate; an adjusting screw is screwed in the threaded sleeve, an adjusting nut is screwed on the adjusting screw, the upper end of the adjusting screw is higher than the top of the upright column by a certain height, and a U-shaped seat is welded. The utility model is connected with the bracket only through the bolt, and the installation is convenient; the elevation of the top surface of the bracket is adjusted through the adjusting screw rod, the operation is convenient, the adjusting range is large, and the adjusting precision is high.

Description

Jacking suitable for assembled support

Technical Field

The utility model relates to a support that adopts among the bridge construction process, concretely relates to is used for installing the top at assembled support top and holds in the palm.

Background

The support is often adopted as bearing structure in the bridge construction process, wherein more commonly is full hall support. Traditional full hall support adopts the steel pipe scene to set up one by one, and installation rate is slower, can influence the construction progress sometimes, also commonly adopts assembled support at present for this. The assembled support adopts a plurality of standard segments that are processed in advance to be connected through the pin shaft and the bolt, so that the mounting progress of the support can be greatly accelerated.

The support top usually need set up the top and hold in the palm, and the top holds in the palm on the one hand and is used for installing the spandrel girder, and on the other hand can finely tune the support elevation. The traditional full-hall bracket is assembled by adopting independent rods, the top of the bracket can select a vertical rod with proper length, and a matched jacking support is arranged on the vertical rod, so that the elevation is easy to adjust; and the assembled support is difficult to control the elevation of the support due to the adoption of the standard segment combination with fixed height, and the common elevation adjusting devices such as sand cylinders or wedge blocks have large self weight, are inconvenient to install, have small adjusting amplitude and low control precision, and are not suitable for the assembled support.

Disclosure of Invention

The utility model aims at providing a top support that is used for assembled support specially, can adjust support elevation by a wide margin, and control accuracy is high, simple to operate.

The technical scheme of the utility model as follows:

the utility model provides a top holds in palm suitable for assembled support which characterized in that: the steel column is a double-spliced channel steel with opposite notches, a threaded sleeve which is as high as the column is arranged between webs of two channel steel of the double-spliced channel steel, a rectangular bottom plate is welded at the bottom of the column, a top plate is welded at the top of the column, and the bottom and the top of the threaded sleeve are respectively welded with the top surface of the bottom plate and the bottom surface of the top plate; a bolt hole is respectively arranged on the bottom plate corresponding to 4 corners, and a positioning hole is arranged in the middle of the bottom plate; a through hole with the same inner diameter as the threaded sleeve is arranged in the middle of the top plate opposite to the threaded sleeve; an adjusting screw is screwed in the threaded sleeve, the upper end of the adjusting screw is higher than the top of the upright column by a certain height, a U-shaped seat is welded, an adjusting nut is screwed on the adjusting screw, and the adjusting nut is positioned on the top surface of the top plate.

The utility model can be processed in advance in factories, and the field and the bracket only need to be connected through bolts, thus the installation is convenient; the jacking supports the top surface elevation of the support through the screw rod, the operation is convenient, the adjustable range is large, and the adjustment precision is high.

Drawings

Fig. 1 is a schematic elevation structure of the present invention;

fig. 2 is a schematic side view of the present invention;

FIG. 3 is a sectional view taken along line I-I of FIG. 1;

fig. 4 is a schematic view of the installation structure of the present invention on the fabricated bracket.

Detailed Description

As shown in fig. 1, 2 and 3, the utility model comprises a column 1, the column adopts double-spliced channel steel with opposite notches, a threaded sleeve 2 with the same height as the column is arranged between two channel steel webs of the double-spliced channel steel, a rectangular bottom plate 3 is welded at the bottom of the column, a top plate 4 is welded at the top of the column, and the bottom and the top of the threaded sleeve 2 are respectively welded with the top surface of the bottom plate 3 and the bottom surface of the top plate 4; a bolt hole 31 is respectively arranged on the bottom plate 3 corresponding to 4 corners, and a positioning hole 32 is arranged in the middle of the bottom plate; a through hole with the same inner diameter as the threaded sleeve is arranged in the middle of the top plate 4 opposite to the threaded sleeve; an adjusting screw rod 5 is screwed in the threaded sleeve, the upper end of the adjusting screw rod 5 is higher than the top of the upright post 1 by a certain height and is fixedly connected with a U-shaped seat 6, an adjusting nut 7 is screwed on the adjusting screw rod 5, and the adjusting nut 7 is positioned at the top of the top plate 4.

In order to ensure the stability of the jacking, the screw connection length of the adjusting screw 5 and the threaded sleeve 2 is preferably kept to be no less than half of the height of the threaded sleeve all the time.

For the structure of enhancement stand, the utility model discloses during the implementation, can weld a gusset plate 8 parallel with roof and bottom plate between 1 middle, two channel-section steel webs of stand, a through-hole is established to gusset plate 8 centre, threaded sleeve 2 passes by the through-hole on the gusset plate, and the peripheral and threaded sleeve 2's of gusset plate 8 through-hole outer wall welding.

In order to facilitate the transverse connection of the top support at the top of the bracket, a pair of ear plates 9 can be respectively welded on 4 side surfaces of the upright column at the upper end and the lower end of the upright column, the ear plate 9 at the upper end of the upright column is welded with the bottom surface of the top plate 4, and the ear plate 9 at the lower end of the upright column is welded with the top surface of the bottom plate 3.

The assembled support is generally formed by connecting a plurality of sections with standard heights, ear plates are arranged on four side faces of an upright post of each section, an upper connecting plate is arranged at the top of the upright post, a lower connecting plate is arranged at the bottom of the upright post, bolt holes are respectively arranged at 4 corners of a top plate and a bottom plate, a positioning pin is arranged in the middle of the top face of the upper connecting plate, and a positioning hole matched with the positioning column is arranged in the middle of the lower connecting plate. When the two sections are connected up and down, the positioning pin at the top of the upright column of the lower section is inserted into the positioning hole at the bottom of the upright column of the upper section, and the top plate is connected with the bottom plate through the bolt; when the two sections are transversely connected, the two sections are connected through the ear plates on the upright posts by the cross rods and the diagonal braces.

The utility model discloses locating hole 32 and bolt hole 31 that set up on the stand bottom plate are convenient for be connected with the top segment top of assembled support.

As shown in fig. 4, the top of each column of the assembled bracket 10 is installed, the top of the utility model is supported by the column bottom plate 3 and the column top plate of the bracket through the positioning holes and the positioning pins 11, and the column bottom plate and the column top plate are connected through the bolts 12 for bolt holes. In order to ensure that each jacking bracket is firmly installed at the top of the bracket, cross rods 13 and inclined support rods 14 are connected between adjacent jacking upright posts to form an integral structure through ear plates 9.

When the elevation of the top of the support needs to be adjusted, the adjusting nut 7 on the adjusting screw rod 5 is rotated by the wrench, and the height of the top support can be adjusted by adjusting the bolt connection length of the adjusting screw rod 5 in the threaded sleeve 2, so that the elevation of the top of the support is adjusted.

Claims

1. The utility model provides a top holds in palm suitable for assembled support which characterized in that: the steel column is a double-spliced channel steel with opposite notches, a threaded sleeve which is as high as the column is arranged between webs of two channel steel of the double-spliced channel steel, a rectangular bottom plate is welded at the bottom of the column, a top plate is welded at the top of the column, and the bottom and the top of the threaded sleeve are respectively welded with the top surface of the bottom plate and the bottom surface of the top plate; a bolt hole is respectively arranged on the bottom plate corresponding to 4 corners, and a positioning hole is arranged in the middle of the bottom plate; a through hole with the same inner diameter as the threaded sleeve is arranged in the middle of the top plate opposite to the threaded sleeve; an adjusting screw is screwed in the threaded sleeve, the upper end of the adjusting screw is higher than the top of the upright column by a certain height and is fixedly connected with a U-shaped seat, and an adjusting nut is screwed on the adjusting screw and is positioned on the top surface of the top plate.

2. The jacking device suitable for the fabricated bracket as claimed in claim 1, wherein: and a reinforcing plate parallel to the top plate and the bottom plate is welded between the two channel steel webs in the middle of the upright post, and the threaded sleeve penetrates through the reinforcing plate.

3. The jacking device suitable for the fabricated bracket as claimed in claim 1, wherein: a pair of ear plates are respectively welded on 4 side surfaces of the upright column at the upper end and the lower end of the upright column, the ear plate at the upper end of the upright column is welded with the bottom surface of the top plate, and the ear plate at the lower end of the upright column is welded with the top surface of the bottom plate.