CN214836421U - A quick installation device of steel bow member for tunnel preliminary bracing - Google Patents
A quick installation device of steel bow member for tunnel preliminary bracing Download PDFInfo
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- CN214836421U CN214836421U CN202120267401.9U CN202120267401U CN214836421U CN 214836421 U CN214836421 U CN 214836421U CN 202120267401 U CN202120267401 U CN 202120267401U CN 214836421 U CN214836421 U CN 214836421U
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Abstract
The utility model relates to the field of tunnel arch centering, in particular to a steel arch centering quick installation device for tunnel preliminary bracing, which comprises a plurality of sections of arc arch centering sections which are connected in sequence, wherein two adjacent sections of arc arch centering sections are rotationally connected through a rotating mechanism; the rotating mechanism comprises a first connecting plate and a second connecting plate which are fixedly connected with two adjacent arc arch frame sections respectively, and one ends of the first connecting plate and the second connecting plate, which are opposite, are hinged; one of the two adjacent arc arch sections is connected with a clamping rod in a sliding manner and is provided with a limiting mechanism for limiting the sliding of the clamping rod, and the first connecting plate and the second connecting plate are provided with limiting holes through which the clamping rod passes. When the steel arch is installed, only the first connecting plate and the second connecting plate need to be unfolded around the hinged central line, and the first connecting plate and the second connecting plate are contacted simultaneously, so that the steel arch is unfolded in place, the construction time for installing the steel arch is greatly reduced, and the labor intensity of operators is reduced.
Description
Technical Field
The utility model relates to a tunnel bow member field especially relates to a quick installation device of steel bow member for tunnel preliminary bracing.
Background
At present, in tunnel steel arch support engineering, manual or mechanical single-section installation is mostly adopted, when a steel arch is transported to a designated position, multiple sections of steel arches need to be lifted to a certain height manually or mechanically, bolt connecting holes in the steel arches of adjacent sections are aligned in place manually or mechanically, and finally the steel arches are connected and fixed through steel arch connecting bolts, so that the whole steel arch is connected into a whole. In the whole installation process of the steel arch frame, no matter manual or mechanical installation is adopted, the time consumption is long, the bolt connecting hole is aligned to the steel arch frame to be in place, the bolt connecting hole is longest, in the whole installation process, personnel are exposed under the tunnel face, and the steel arch frame installation method has great safety risk and low construction efficiency for long-time, multi-process and high-strength operation.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem among the prior art, the utility model provides a quick installation device of steel bow member for tunnel preliminary bracing has solved among the prior art tunnel bow member and has adopted single section to install in proper order, has the longer problem that has great safety risk of engineering time.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:
the steel arch rapid installation device comprises a plurality of arc arch sections which are sequentially connected, wherein two adjacent arc arch sections are rotationally connected through a rotating mechanism;
the rotating mechanism comprises a first connecting plate and a second connecting plate which are fixedly connected with two adjacent arc arch frame sections respectively, and one ends of the first connecting plate and the second connecting plate, which are opposite, are hinged;
one of two sections adjacent arc bow member sections is gone up sliding connection has the screens pole and is equipped with the stop gear who is used for restricting the gliding of screens pole, all sets up the spacing hole that supplies the screens pole to pass on first connecting plate and the second connecting plate.
Further, the number of the arc arch sections is three.
Furthermore, a first sleeve is arranged on the first connecting plate, a second sleeve is arranged on the second connecting plate, the first sleeve and the second sleeve are both sleeved on a loop bar with a T-shaped section, and an anti-sliding pin is arranged at the end part of the vertical end of the loop bar.
Further, the first sleeve and the first connecting plate are welded, and the second connecting plate and the second sleeve are also welded.
Further, the number of the first sleeves is one, the number of the second sleeves is two, and the first sleeves are located between the two second sleeves.
Furthermore, stop gear includes the barre of being connected perpendicularly with the screens pole and sets gradually two cowl on the arc bow member section.
Furthermore, the first connecting plate and the second connecting plate are both provided with locking connecting holes for the locking bolts to pass through.
The utility model has the advantages that:
the two adjacent arc arch sections of the utility model are rotationally connected through the rotating mechanism, therefore, the steel arch can be prefabricated outside the tunnel in advance, and the steel arch can be folded due to the rotational connection, is convenient to transport and is especially suitable for the narrow space of the tunnel; when the steel arch is installed, the steel arch is unfolded only by winding the hinged central line of the first connecting plate and the hinged central line of the second connecting plate, and the first connecting plate is contacted with the second connecting plate, so that the steel arch is unfolded in place, the construction time for installing the steel arch is greatly reduced, the labor intensity of operators is reduced, the safety risk of the operators exposed to the exposed surrounding rock for a long time is reduced, and the installation efficiency of the steel arch is improved;
after the steel arch frame is unfolded and the clamping rod is clamped into the limiting holes of the first connecting plate and the second connecting plate, the limiting mechanism limits the clamping rod to slide, the phenomenon that one section of the adjacent two sections of arc-shaped arch frame sections falls down under the action of gravity to influence the installation of the steel arch frame is effectively avoided, the time for manually lifting the steel arch frame is shortened, and the labor intensity of operators is reduced.
Drawings
Fig. 1 is a folding schematic view of a steel arch quick installation device for tunnel preliminary bracing.
Fig. 2 is a development view of a steel arch quick installation device for tunnel preliminary bracing.
Fig. 3 is a schematic diagram of a limiting mechanism of a steel arch quick installation device for tunnel preliminary bracing.
Fig. 4 is a front view of a rotating mechanism of a steel arch quick installation device for tunnel preliminary bracing.
Fig. 5 is a left side view of a turning mechanism of a steel arch quick installation device for tunnel preliminary bracing.
Wherein, 1, an arc arch frame section; 4. a first connecting plate; 5. a second connecting plate; 6. a position clamping rod; 7. a first sleeve; 8. a second sleeve; 9. a loop bar; 10. an anti-slip pin; 11. a handle bar; 12. an arc baffle.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.
As shown in fig. 1-3, the scheme provides a steel arch quick installation device for tunnel primary support, which comprises a plurality of arc arch sections 1 connected in sequence, wherein two adjacent arc arch sections 1 are rotationally connected through a rotating mechanism;
the rotating mechanism comprises a first connecting plate 4 and a second connecting plate 5 which are fixedly connected with the two adjacent arc arch frame sections 1 respectively, and one ends of the first connecting plate 4 opposite to the second connecting plate 5 are hinged;
one section of arc bow member section 1 in two sections adjacent arc bow member sections 1 goes up sliding connection has screens pole 6 and is equipped with the stop gear who is used for restricting screens pole 6 gliding, all sets up the spacing hole that screens pole 6 passed on first connecting plate 4 and the second connecting plate 5.
In this embodiment, the number of the arc-shaped arch sections 1 is preferably three, and besides, the number of the arc-shaped arch sections 1 may also be five or seven, and the specific number may be determined according to actual requirements. As shown in fig. 4 and 5, the first connecting plate 4 and the second connecting plate 5 are hinged: the first connecting plate 4 is provided with a first sleeve 7, the second connecting plate 5 is provided with a second sleeve 8, the first sleeve 7 and the second sleeve 8 are both sleeved on a loop bar 9 with a T-shaped section, and the vertical end part of the loop bar 9 is provided with an anti-sliding pin 10. The first sleeve 7 and the second sleeve 8 are both positioned between the anti-sliding pin 10 and the horizontal end of the loop bar 9, and the loop bar 9 can be prevented from sliding in the installation process through the anti-sliding pin 10.
The first sleeve 7 and the first connecting plate 4 are welded, and the second connecting plate 5 and the second sleeve 8 are also welded; the number of the first sleeves 7 is one, the number of the second sleeves 8 is two, and the first sleeves 7 are located between the two second sleeves 8.
As shown in fig. 3, the limiting mechanism includes a handle bar 11 vertically connected to the position-locking bar 6 and two arc-shaped baffles 12 sequentially arranged on the arc-shaped arch section 1. After the screens pole 6 card goes into spacing hole, be close to the cowl 12 of first connecting plate 4 and avoid screens pole 6 from the spacing downthehole roll-off, keep away from cowl 12 of first connecting plate 4 and avoided screens pole 6 to influence the cooperation of first connecting plate 4 and second connecting plate 5.
Claims (7)
1. A steel arch rapid installation device for tunnel primary support is characterized by comprising a plurality of arc arch sections (1) which are sequentially connected, wherein the adjacent two arc arch sections (1) are rotationally connected through a rotating mechanism;
the rotating mechanism comprises a first connecting plate (4) and a second connecting plate (5) which are fixedly connected with two adjacent arc arch frame sections (1) respectively, and one ends of the first connecting plate (4) and the second connecting plate (5) opposite to each other are hinged;
adjacent two sections sliding connection has screens pole (6) and is equipped with and is used for the restriction on one section arc bow member section (1) in arc bow member section (1) the gliding stop gear of screens pole (6), all seted up the confession on first connecting plate (4) and second connecting plate (5) the spacing hole that screens pole (6) passed.
2. The steel arch quick-mounting device for preliminary tunnel support according to claim 1, characterized in that the number of arch segments (1) is three.
3. The steel arch quick installation device for tunnel preliminary bracing according to claim 1, characterized in that a first sleeve (7) is arranged on the first connecting plate (4), a second sleeve (8) is arranged on the second connecting plate (5), the first sleeve (7) and the second sleeve (8) are sleeved on a loop bar (9) with a T-shaped section, and an anti-sliding pin (10) is arranged at the vertical end of the loop bar (9).
4. The device for the quick installation of steel arches for the preliminary support of tunnels according to claim 3, characterized in that said first sleeve (7) is welded to a first connection plate (4) and said second connection plate (5) is welded to a second sleeve (8).
5. The steel arch quick-mounting device for tunnel preliminary support according to claim 3, characterized in that the number of said first sleeves (7) is one, the number of said second sleeves (8) is two, said first sleeves (7) being located between two second sleeves (8).
6. The quick installation device of steel arch for tunnel preliminary bracing according to claim 1, characterized in that, the limiting mechanism includes a rod (11) vertically connected with the clamping rod (6) and two arc-shaped baffles (12) sequentially arranged on the arc-shaped arch section (1).
7. The quick installation device of steel arch for tunnel preliminary bracing according to any one of claims 1-6, characterized in that the first connecting plate (4) and the second connecting plate (5) are provided with locking connection holes for the passing of locking bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120267401.9U CN214836421U (en) | 2021-01-29 | 2021-01-29 | A quick installation device of steel bow member for tunnel preliminary bracing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120267401.9U CN214836421U (en) | 2021-01-29 | 2021-01-29 | A quick installation device of steel bow member for tunnel preliminary bracing |
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| Publication Number | Publication Date |
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| CN214836421U true CN214836421U (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120267401.9U Active CN214836421U (en) | 2021-01-29 | 2021-01-29 | A quick installation device of steel bow member for tunnel preliminary bracing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220731A (en) * | 2023-03-14 | 2023-06-06 | 广东威恒输变电工程有限公司 | Method for installing tunnel pipe joint arc-shaped support |
-
2021
- 2021-01-29 CN CN202120267401.9U patent/CN214836421U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220731A (en) * | 2023-03-14 | 2023-06-06 | 广东威恒输变电工程有限公司 | Method for installing tunnel pipe joint arc-shaped support |
| CN116220731B (en) * | 2023-03-14 | 2023-11-10 | 广东威恒输变电工程有限公司 | Method for installing tunnel pipe joint arc-shaped support |
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