CN205773157U - Tunnel arch installs light jacking apparatus - Google Patents
Tunnel arch installs light jacking apparatus Download PDFInfo
- Publication number
- CN205773157U CN205773157U CN201620509646.7U CN201620509646U CN205773157U CN 205773157 U CN205773157 U CN 205773157U CN 201620509646 U CN201620509646 U CN 201620509646U CN 205773157 U CN205773157 U CN 205773157U
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- jacking
- jack shaft
- supporting plate
- guide cylinder
- draw
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Abstract
The open a kind of tunnel arch of this utility model installs light jacking apparatus, and when tunnel excavation remaining core soil in advance, I-shaped steel arch-shelf is installed in supporting, and it includes jacking, lifting pin and chain block；Jacking includes draw-in groove, and for spacing I-steel bow member, jacking is arranged on rotary pin shaft；Lifting pin includes jack shaft, guide cylinder, supporting plate, guide cylinder is connected with supporting plate, jack shaft inserts guide cylinder and is connected with lifting packing ring through supporting plate, and lifting packing ring can move up and down with jack shaft and be landed on supporting plate, and jack shaft top is provided with the slip-knot joint installing rotary pin shaft；Two chain block upper ends are connected to two ends of bearing plate, and lower end is connected to bottom jack shaft.Manually being put in bottom bow member by this device during work, and fork bow member with jacking, then pull chain block is by the position of bow member jacking to needs.This utility model light and flexible, one man operation is easy to use, and efficiency is high, reduces workload and working time, lowers Tunnel Landslide risk, it is ensured that engineering safety.
Description
Technical field
This utility model relates to a kind of tunnel I-shaped steel arch-shelf and installs light jacking apparatus.
Background technology
Tunnel tunnel face excavates, run into Grades of Surrounding Rock higher time, it usually needs remaining core soil in advance, now bow member installing space is narrow, and it is the most inconvenient that I-steel bow member is installed, and general construction employing is carried people on the shoulder and shouldered, and takes a lot of work laborious.
Summary of the invention
For above-mentioned existing problems, this utility model aims to provide a kind of when tunnel excavation remaining core soil in advance, and the Simple jacking device of I-shaped steel arch-shelf is installed in supporting.
This utility model is realized by following technical proposals: a kind of tunnel arch installs light jacking apparatus, it includes jacking, lifting pin and chain block, described jacking includes draw-in groove, and described draw-in groove is welded by both sides steel plate and draw-in groove base, for spacing I-steel bow member；Described lifting pin includes jack shaft, guide cylinder, supporting plate, described guide cylinder is connected with supporting plate, described jack shaft inserts guide cylinder and is connected with lifting packing ring through supporting plate, described lifting packing ring can move up and down with jack shaft and be landed on supporting plate, described jack shaft top is provided with the slip-knot joint for installing rotary pin shaft, described jacking passes through draw-in groove floor installation on rotary pin shaft, described jacking maximum anglec of rotation around about rotary pin shaft is less than 45 °, two chain block upper ends are connected to two ends of bearing plate, two chain block lower ends are connected on the bottom of jack shaft by hook connecting.
This utility model also includes that the limiting plate in card grooved, described limiting plate are connected with lifting packing ring, is used for ensureing that about described jacking, the maximum anglec of rotation does not transfinites.
This utility model also includes being trapped among the cover body being made up of outside guide cylinder and jack shaft two equal leg angles, and two equal leg angle upper ends are connected with supporting plate, and lower end is connected with base plate, and it is 20mm～22mm that two equal leg angles close rear holding aperture pitch (a).
Guide cylinder described in the utility model and jack shaft are made up of steel pipe, after two steel pipes suits between to leave gap (b) be 2.2mm～2.4mm.
Both sides steel plate and the junction solid welding of draw-in groove base of draw-in groove described in the utility model have floor.
The big I of draw-in groove described in the utility model adjusts according to the I-steel model of bow member.
This utility model light and flexible, total the most about 25kg, artificial one man operation is easy to use.Utilize this device at narrow space Nei Zhili I-steel bow member, workload and working time can be reduced, be greatly improved efficiency of construction, lower Tunnel Landslide risk, it is ensured that engineering safety.
Accompanying drawing explanation
Fig. 1 is that tunnel arch installs light jacking apparatus front elevation and elevation；
Fig. 2 is the sectional view of I-I line along Fig. 1.
Detailed description of the invention
With embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
As shown in Fig. 1～2, the tunnel arch of this utility model embodiment installs light jacking apparatus, is mainly made up of jacking, lifting pin, chain block, cover body, and jacking includes draw-in groove 2, draw-in groove 2 is welded by both sides steel plate and draw-in groove base 4, for spacing I-steel bow member；Lifting pin includes supporting plate 9, guide cylinder 12, jack shaft 13, guide cylinder 12 is connected with supporting plate 9, jack shaft 13 inserts guide cylinder 12 and is connected with lifting packing ring 8 through supporting plate 9, lifting packing ring 8 can move up and down and be landed on supporting plate 9 with jack shaft 13, jack shaft top is provided with the slip-knot joint 7 for installing rotary pin shaft 5, and jacking is arranged on rotary pin shaft 5 by draw-in groove base 4, two chain blocks 10, its upper end is connected to supporting plate 9 two ends, and its lower end is connected to the bottom of jack shaft 13 by hook 14.Wherein, being arranged on the maximum anglec of rotation around about rotary pin shaft of the jacking on rotary pin shaft 5 and, less than 45 °, for making the maximum anglec of rotation about jacking not transfinite, be provided with limiting plate 6, to guarantee a vertical bow member safety, limiting plate 6 is connected with lifting packing ring 8；Cover body 11 is involuted by two equal leg angles, and aperture pitch a of latter two equal leg angle involutory is 22mm, and two equal leg angle upper ends are connected with supporting plate 9, and lower end is connected with base plate 15；Guide cylinder 12 and jack shaft 13 steel pipe manufacturing, guide cylinder steel pipe socket is on jack shaft steel pipe, and the gap b of two steel pipes is 2.4mm, to ensure that lifting pin vertically hoists；Draw-in groove 2 and draw-in groove base 4 junction solid welding have floor 3；The big I of draw-in groove 2 adjusts according to the model of I-steel 1 to be erected.
During construction, I-steel bow member 1 to be erected is transported to Core Soil position by excavator etc., manually lifts its bottom in installation site, then uses this utility model device fork to lift the other end of bow member to design attitude, and is connected with other I-steel bolts.This device multiple can be set during construction as required.
Claims (6)
1. tunnel arch installs a light jacking apparatus, and it includes jacking, lifting pin and chain block, it is characterised in that described jacking includes draw-in groove, and described draw-in groove is welded by both sides steel plate and draw-in groove base, for spacing I-steel bow member；Described lifting pin includes jack shaft, guide cylinder, supporting plate, described guide cylinder is connected with supporting plate, described jack shaft inserts guide cylinder and is connected with lifting packing ring through supporting plate, described lifting packing ring can move up and down with jack shaft and be landed on supporting plate, described jack shaft top is provided with the slip-knot joint for installing rotary pin shaft, described jacking is by draw-in groove floor installation on rotary pin shaft, and described jacking maximum anglec of rotation around about rotary pin shaft is less than 45 °；Two chain block upper ends are connected to two ends of bearing plate, and chain block lower end is connected on the bottom of jack shaft by hook connecting.
Tunnel arch the most according to claim 1 installs light jacking apparatus, it is characterised in that it also includes that the limiting plate in card grooved, described limiting plate are connected with lifting packing ring, is used for ensureing that about described jacking, the maximum anglec of rotation does not transfinites.
Tunnel arch the most according to claim 1 installs light jacking apparatus, it is characterized in that, it also includes being trapped among the cover body being made up of outside guide cylinder and jack shaft two equal leg angles, two equal leg angle upper ends are connected with supporting plate, lower end is connected with base plate, and it is 20～22mm that two equal leg angles close rear holding aperture pitch (a).
Tunnel arch the most according to claim 1 installs light jacking apparatus, it is characterised in that described guide cylinder and jack shaft are made up of steel pipe, after two steel pipes suits between to leave gap (b) be 2.2mm～2.4mm.
Tunnel arch the most according to claim 1 installs light jacking apparatus, it is characterised in that described jacking has floor at both sides steel plate and the junction solid welding of draw-in groove base.
Tunnel arch the most according to claim 1 installs light jacking apparatus, it is characterised in that the big I of described draw-in groove adjusts according to the I-steel model of bow member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620509646.7U CN205773157U (en) | 2016-05-31 | 2016-05-31 | Tunnel arch installs light jacking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620509646.7U CN205773157U (en) | 2016-05-31 | 2016-05-31 | Tunnel arch installs light jacking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205773157U true CN205773157U (en) | 2016-12-07 |
Family
ID=58137346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620509646.7U Active CN205773157U (en) | 2016-05-31 | 2016-05-31 | Tunnel arch installs light jacking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205773157U (en) |
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2016
- 2016-05-31 CN CN201620509646.7U patent/CN205773157U/en active Active
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| GR01 | Patent grant |