CN210264751U - Lock foot anchor pipe positioner - Google Patents
Lock foot anchor pipe positioner Download PDFInfo
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- CN210264751U CN210264751U CN201920722763.5U CN201920722763U CN210264751U CN 210264751 U CN210264751 U CN 210264751U CN 201920722763 U CN201920722763 U CN 201920722763U CN 210264751 U CN210264751 U CN 210264751U
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Abstract
A locking leg anchor pipe positioning device comprises a positioning steel plate and a guide steel pipe. The positioning steel plate is provided with two directional holes, a 45-degree oblique rectangular hole matched with the cross section of the positioning steel plate in size is processed in the profile steel web plate, the positioning plate is firmly welded with the profile steel web plate after penetrating through the rectangular hole, the guiding steel pipe is installed, and the guiding pipe penetrates through the directional holes in the positioning steel plate and is firmly welded with the positioning steel plate. When the lock pin anchor pipe is manufactured, positioning, drilling and welding are carried out through the guide steel pipe. The device is convenient to machine, simple to operate and low in cost, can accurately control the construction angle of the lock pin anchor pipe, improves the connection firmness of the lock pin anchor pipe and the preliminary bracing steel frame, avoids the defect that the L-shaped connecting rib is not firmly welded, and can be widely applied to preliminary bracing construction of the tunnel adopting the profile steel frame.
Description
Technical Field
The utility model relates to a tunnel adopts the preliminary bracing construction technical field of shaped steel steelframe, concretely relates to lock foot anchor pipe positioner.
Background
The construction of the lock leg anchor pipe is an important process of primary support operation of the tunnel, the driving angle of the lock leg anchor pipe has direct influence on the settlement and convergence of the primary support structure which is not closed into a ring, and the accuracy of the driving direction of the lock leg anchor pipe and the welding quality of the steel arch directly relate to the deformation and the stability of the primary support of the tunnel. In the construction process, the driving angles of the lock pin anchor pipes are difficult to ensure uniformity due to factors of all aspects, the stress of the primary support steel frame is uneven due to the deviation of the driving angles every time, and the effects of settlement control and stress control of the lock pin anchor pipes are greatly weakened.
Disclosure of Invention
In order to overcome the not enough of above-mentioned prior art, the utility model aims at providing a lock foot anchor pipe positioner has solved prior art lock foot anchor pipe and has squeezed into the difficult control of angle, lock foot anchor pipe and the poor problem of shaped steel bow member welding quality. The method has the characteristics of convenience and quickness in processing, simplicity in operation, high working efficiency, low cost, high precision and the like.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
a rectangular hole with the 45-degree oblique angle and the cross section size matched with that of a positioning steel plate are machined in a section steel web plate, and the positioning steel plate penetrates through the 45-degree oblique rectangular hole of the section steel web plate and is welded with the section steel web plate.
The positioning steel plate is provided with two phi 53 directional holes, the guide steel pipe is processed by a phi 51mm multiplied by 3mm seamless steel pipe with the length of 20cm, and the guide steel pipe penetrates through the directional holes on the positioning steel plate and is welded with the steel plate.
And the finished lock pin anchor pipe is firmly welded at the lower opening and the end part of the guide steel pipe respectively.
The utility model has the advantages that:
compared with the prior art, the utility model, have characteristics such as processing is convenient, easy operation, work efficiency height, with low costs, precision height, safety.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a side view of the steel arch.
Fig. 3 is a schematic view of the positioning steel plate.
Wherein, 1 is a steel frame; 2, a guide steel pipe; 3, a positioning steel plate; 4, a rectangular hole with a 45-degree oblique section steel web plate; and 5, positioning holes in the positioning steel plate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figure 1, the locking leg anchor pipe positioning device comprises a positioning steel plate (2) and a guide steel pipe (3).
As shown in figures 1 and 2, a rectangular hole (4) with an inclined angle of 45 degrees and adapted to the section size of a positioning steel plate is machined in the steel section web plate (1).
The positioning steel plate (2) penetrates through a rectangular hole (4) which is inclined by 45 degrees on the section steel web plate (1) and is welded with the section steel web plate (1).
As shown in figure 3, two phi 53mm oriented holes are processed on the positioning steel plate (2), a phi 51mm multiplied by 3mm seamless steel pipe is used for processing the guide steel pipe (3), and the guide steel pipe (3) penetrates through the oriented holes (5) on the positioning steel plate (2) to be welded with the positioning steel plate (3).
And the guide steel pipe (3) is welded with the exposed part of the lock pin anchor pipe after construction.
The utility model discloses a theory of operation:
through the angle of processing the 45 rectangular hole control location steel sheets of slant on shaped steel web, the angle of further control direction steel pipe, through direction steel pipe to drilling and beat establish lock foot anchor pipe and carry out direction control, effectual control drilling in-process drilling rod swing causes defects such as inclined to one side hole, guaranteed drilling and beat the angle of establishing lock foot anchor pipe, lock foot anchor pipe exposes the part and welds with the direction steel pipe, avoided adopting "L" type splice bar welding not firm shortcoming.
Claims (3)
1. A locking leg anchor pipe positioning device comprises a positioning steel plate (2) and a guide steel pipe (3), and is characterized in that the positioning steel plate (2) is welded with a section steel web (1), and the guide steel pipe (3) is welded with the positioning steel plate (2); an oblique 45-degree rectangular hole (4) which is adaptive to the section size of the positioning steel plate (2) is machined in the section steel web plate (1), and the positioning steel plate (2) is welded with the oblique 45-degree rectangular hole (4) of the section steel web plate; the positioning steel plate (2) is provided with two phi 53 positioning holes (5).
2. The device for positioning a lock pin anchor pipe according to claim 1, wherein the guide steel pipe (3) with a length of 20cm is manufactured by a seamless steel pipe with a diameter of 51mm x 3mm, and passes through and is welded with the positioning hole (5) on the positioning steel plate (2).
3. The device for positioning an anchor tube for a lock pin according to claim 1, wherein the guide steel tube (3) is welded to an exposed portion of the anchor tube for the lock pin after the operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920722763.5U CN210264751U (en) | 2019-05-20 | 2019-05-20 | Lock foot anchor pipe positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920722763.5U CN210264751U (en) | 2019-05-20 | 2019-05-20 | Lock foot anchor pipe positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210264751U true CN210264751U (en) | 2020-04-07 |
Family
ID=70025546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920722763.5U Active CN210264751U (en) | 2019-05-20 | 2019-05-20 | Lock foot anchor pipe positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210264751U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814715A (en) * | 2021-01-07 | 2021-05-18 | 中铁十六局集团第三工程有限公司 | Novel locking anchor pipe construction fixing device and construction method thereof |
| CN114991824A (en) * | 2022-08-08 | 2022-09-02 | 中铁九局集团第七工程有限公司 | Fixing device for controlling angle of advanced small guide pipe in tunnel and construction method |
-
2019
- 2019-05-20 CN CN201920722763.5U patent/CN210264751U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814715A (en) * | 2021-01-07 | 2021-05-18 | 中铁十六局集团第三工程有限公司 | Novel locking anchor pipe construction fixing device and construction method thereof |
| CN114991824A (en) * | 2022-08-08 | 2022-09-02 | 中铁九局集团第七工程有限公司 | Fixing device for controlling angle of advanced small guide pipe in tunnel and construction method |
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