CN113931668B - Positioning device for tunnel primary support steel arch stock drilling - Google Patents
Positioning device for tunnel primary support steel arch stock drilling Download PDFInfo
- Publication number
- CN113931668B CN113931668B CN202111193030.5A CN202111193030A CN113931668B CN 113931668 B CN113931668 B CN 113931668B CN 202111193030 A CN202111193030 A CN 202111193030A CN 113931668 B CN113931668 B CN 113931668B
- Authority
- CN
- China
- Prior art keywords
- template
- threaded
- shaped plate
- drilling
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 29
- 239000010959 steel Substances 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000003028 elevating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Drilling And Boring (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a positioning device for drilling holes on a tunnel primary support steel arch anchor rod, which comprises a fixing mechanism, wherein the fixing mechanism comprises a first U-shaped plate, four clamping plates are arranged in the first U-shaped plate, first threaded rods are fixedly connected to opposite side walls of the four clamping plates, one ends of the four first threaded rods, which are far away from the four clamping plates, are arranged through the first U-shaped plate in a sliding mode, threaded sleeves are sleeved on the outer equal threads of the four first threaded rods, the four threaded sleeves are rotatably connected with the outer side wall of the first U-shaped plate, a rotating shaft is rotatably arranged on the first U-shaped plate in a penetrating mode, one end of the rotating shaft is coaxially and fixedly connected with a first rotating handle, and the rotating shaft is in transmission connection with the four threaded sleeves through a first transmission mechanism. In the positioning process, the positioning equipment does not need to be supported, the use is labor-saving, and in addition, when drilling, the drilling equipment does not deviate, so that the use effect is good.
Description
Technical Field
The invention relates to the technical field of tunnel machinery, in particular to a positioning device for drilling a tunnel primary support steel arch anchor rod.
Background
The tunnel is an engineering building embedded in the stratum, is a form of utilizing underground space by human beings, and can be divided into a traffic tunnel, a hydraulic tunnel, a municipal tunnel, a mine tunnel and a military tunnel; the tunnel structure comprises a main building and auxiliary equipment, wherein the main building consists of a tunnel body and a tunnel portal, the auxiliary equipment comprises a vehicle-avoiding tunnel, a fire-fighting facility, an emergency communication and water-proof facility and a long tunnel is provided with special ventilation and illumination equipment.
When current tunnel is just propped up steel bow member and is drilled, usually through manual handheld drilling equipment to it, the in-process of drilling appears drilling position offset's condition easily, current locating device when carrying out the location adjustment to drilling position, need pull down locating device and with the fixed centre gripping of steel bow member again, need whole journey to support locating device through the staff before the centre gripping, use comparatively laboriously.
Therefore, we propose a positioning device for drilling holes on tunnel primary support steel arch anchors to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the drilling of a steel arch is easy to deviate, the drilling position is inconvenient to position, and the positioning process is laborious.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a positioner of tunnel preliminary bracing steel arch stock drilling, includes fixed establishment, fixed establishment includes first U template, be equipped with four splint in the first U template, four the equal fixedly connected with first threaded rod of the relative lateral wall of splint, four the one end that four splint were kept away from to first threaded rod all slides and runs through first U template setting, four first threaded rod external uniform thread cover is equipped with the screw sleeve, four screw sleeve all rotates with first U template lateral wall to be connected, rotate on the first U template and run through and be equipped with the pivot, the first rotating handle of one end coaxial fixedly connected with of pivot, be connected through first drive mechanism transmission between pivot and the four screw sleeve.
Preferably, the first transmission mechanism comprises a first belt pulley and a second belt pulley, the first belt pulley is fixedly connected with the rotating shaft coaxially, the second belt pulley is fixedly connected with the threaded sleeve coaxially, and the first belt pulley is in transmission connection with the second belt pulley through a first belt.
Preferably, the external threads of the two first threaded rods on the two arms of the first U-shaped plate are opposite in rotation.
Preferably, the positioning mechanism comprises four adjusting plates, four first threaded rods respectively slide and penetrate through the four adjusting plates, adjusting mechanisms used for adjusting the four adjusting plates are arranged in the first U-shaped plates, four adjusting plates are close to the side walls in the middle of the first U-shaped plates and are provided with first idler wheels, second idler wheels are arranged at four corners of the upper end of the first U-shaped plates, grooves are formed in the left and right arms of the first U-shaped plates, a second U-shaped plate is arranged below the first U-shaped plates, two arms of the second U-shaped plates respectively slide and penetrate through the first U-shaped plates, two arms of the second U-shaped plates respectively extend into the two grooves to be arranged, positioning drilling holes are formed in the two arms of the second U-shaped plates, and lifting mechanisms used for lifting the second U-shaped plates are arranged on the first U-shaped plates.
Preferably, the adjustment mechanism is including setting up four recesses in first U template inner bottom, four the recess internal rotation runs through and is equipped with two-way threaded rods, two the equal thread bush in two-way threaded rod is equipped with the screw thread piece, four the screw thread piece respectively with four recess inside wall sliding connection, four the screw thread piece respectively with four regulating plate fixed connection, be equipped with the cavity in the first U template, two-way threaded rods all run through the cavity setting and pass through second drive mechanism transmission connection, one of them one end rotation of two-way threaded rods runs through first U template and coaxial fixedly connected with second rotating handle.
Preferably, the second transmission mechanism comprises two third belt pulleys, the two third belt pulleys are in transmission connection through a second belt, and the two third belt pulleys are respectively and fixedly connected with the two bidirectional threaded rods in a coaxial mode.
Preferably, the lifting mechanism comprises a second threaded rod rotatably connected with the lower end of the first U-shaped plate, and the lower end thread of the second threaded rod penetrates through the second U-shaped plate and is coaxially and fixedly connected with a third rotating handle.
Preferably, two thread blocks positioned outside the same bidirectional threaded rod are respectively provided with a threaded hole matched with the bidirectional threaded rod, and the threads in the two threaded holes are opposite in rotation direction.
Preferably, the inner bottom of the first U-shaped plate is fixedly connected with a magnet.
Compared with the prior art, the invention has the beneficial effects that:
1. the fixing mechanism is arranged, the rotating shaft is driven to rotate through the first rotating handle, the rotating shaft drives the four threaded sleeves to rotate, the four threaded sleeves drive the four first threaded rods to move relatively, the four first threaded rods drive the four clamping plates to move relatively until the clamping plates are in abutting contact with the steel arch and are fixed, and before the positioning and fixing, the weight of the positioning equipment can be completely supported through the attractive force of the magnet and the steel arch, the support force is not required to be applied by workers to support the positioning equipment, and the use is labor-saving;
2. through setting up positioning mechanism, rotate the second handle, the second handle drives two bi-directional threaded rods and rotates, two bi-directional threaded rods drive four screw thread piece relative movement, four screw thread piece drive four regulating plates relative movement, four regulating plates drive four first gyro wheels relative movement, until four gyro wheels offset contact with the steel bow member, promote first U template to suitable position this moment, then fix first U template through four splint, then rotate the third handle, the third handle drives the second threaded rod and rotates, the second threaded rod drives second U template lift, the second U template drives two location drilling and goes up and down, until suitable position can, thereby can accomplish the location to the drilling, the location is comparatively convenient, and is spacing by the location drilling in-process in addition, the condition of skew can not appear in the drilling process.
In the positioning process, the positioning equipment does not need to be supported, the use is labor-saving, and in addition, when drilling, the drilling equipment does not deviate, so that the use effect is good.
Drawings
FIG. 1 is a front perspective view of a positioning device for drilling holes in a primary support steel arch anchor rod of a tunnel according to the present invention;
FIG. 2 is a schematic side view of a positioning device for drilling holes in a primary steel arch anchor rod of a tunnel according to the present invention;
fig. 3 is a schematic top view of a positioning device for drilling holes on a tunnel primary support steel arch anchor rod according to the present invention;
FIG. 4 is a top perspective view of a positioning device for drilling holes in a tunnel primary support steel arch anchor;
fig. 5 is a structural perspective view of a second U-shaped plate in the positioning device for drilling the tunnel primary support steel arch anchor rod.
In the figure: the device comprises a first U-shaped plate, a 2 clamping plate, a 3 first threaded rod, a 4-thread sleeve, a 5 rotating shaft, a 6 first rotating handle, a 7 first transmission mechanism, a 8 first belt pulley, a 9 second belt pulley, a 10 adjusting plate, a 11 adjusting mechanism, a 12 first roller, a 13 second roller, a 14 slot, a 15 second U-shaped plate, a 16 positioning drilling hole, a 17 lifting mechanism, a 18 groove, a 19 bidirectional threaded rod, a 20-thread block, a 21 cavity, a 22 second transmission mechanism, a 23 second rotating handle, a 24 third belt pulley, a 25 second threaded rod, a 26 third rotating handle and a 27 magnet.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in the following examples, and it is obvious that the described examples are only some examples of the present invention, but not all examples.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-5, a positioning device for drilling holes on a tunnel primary support steel arch anchor rod comprises a fixing mechanism, wherein the fixing mechanism comprises a first U-shaped plate 1, a magnet 27 is fixedly connected to the inner bottom of the first U-shaped plate 1, four clamping plates 2 are arranged in the first U-shaped plate 1, first threaded rods 3 are fixedly connected to opposite side walls of the four clamping plates 2, external threads of the two first threaded rods 3 located on two arms of the first U-shaped plate 1 are opposite in rotation direction, one ends of the four first threaded rods 3, far from the four clamping plates 2, are all arranged in a sliding mode through the first U-shaped plate 1, and threaded sleeves 4 are sleeved on the external threads of the four first threaded rods 3.
In the invention, four threaded sleeves 4 are all in rotary connection with the outer side wall of a first U-shaped plate 1, a rotary shaft 5 is rotatably arranged on the first U-shaped plate 1 in a penetrating manner, one end of the rotary shaft 5 is coaxially and fixedly connected with a first rotary handle 6, the rotary shaft 5 is in transmission connection with the four threaded sleeves 4 through a first transmission mechanism 7, the first transmission mechanism 7 comprises a first belt pulley 8 and a second belt pulley 9, the first belt pulley 8 is coaxially and fixedly connected with the rotary shaft 5, the second belt pulley 9 is coaxially and fixedly connected with the threaded sleeves 4, the first belt pulley 8 is in transmission connection with the second belt pulley 9 through a first belt, the positioning mechanism comprises four adjusting plates 10, four first threaded rods 3 are respectively arranged in a sliding manner through the four adjusting plates 10, and an adjusting mechanism 11 for adjusting the four adjusting plates 10 is arranged in the first U-shaped plate 1, and the adjusting mechanism 11 comprises four grooves 18 arranged at the inner bottom of the first U-shaped plate 1.
In the invention, two bidirectional threaded rods 19 are rotatably and penetratingly arranged in four grooves 18, threaded blocks 20 are sleeved on the outer threads of the two bidirectional threaded rods 19, further, threaded holes matched with the bidirectional threaded rods 19 are formed in the two threaded blocks 20 positioned outside the same bidirectional threaded rods 19, threads in the two threaded holes are reversely rotated, four threaded blocks 20 are respectively and slidably connected with the inner side walls of the four grooves 18, four threaded blocks 20 are respectively and fixedly connected with four adjusting plates 10, a cavity 21 is formed in a first U-shaped plate 1, the two bidirectional threaded rods 19 are respectively and penetratingly arranged in the cavity 21 and are in transmission connection through a second transmission mechanism 22, the second transmission mechanism 22 comprises two third belt pulleys 24, the two third belt pulleys 24 are in transmission connection through a second belt, the two third belt pulleys 24 are respectively and fixedly connected with the two bidirectional threaded rods 19 in a coaxial manner, and one end of one bidirectional threaded rod 19 is rotatably and penetratingly connected with a first U-shaped plate 1 and is fixedly connected with a second rotating handle 23 in a coaxial manner.
According to the invention, the side walls of the four adjusting plates 10 close to the middle of the first U-shaped plate 1 are respectively provided with a first roller 12, four corners of the upper end of the first U-shaped plate 1 are respectively provided with a second roller 13, under the action of the first roller 12 and the second roller 13, friction force between the first U-shaped plate 1 and a steel arch can be greatly reduced when the first U-shaped plate 1 is pushed, the first U-shaped plate is conveniently pushed and positioned on the steel arch, the left arm and the right arm of the first U-shaped plate 1 are respectively provided with a groove 14, the lower part of the first U-shaped plate 1 is provided with a second U-shaped plate 15, the two arms of the second U-shaped plate 15 are respectively arranged in the two grooves 14 in a sliding way, the two arms of the second U-shaped plate 15 are respectively provided with positioning drilling holes 16, the first U-shaped plate 1 is provided with a lifting mechanism 17 for lifting the second U-shaped plate 15, the lifting mechanism 17 comprises a threaded rod 25 rotationally connected with the lower end of the first U-shaped plate 1, and the lower end of the second U-shaped plate 25 is coaxially connected with a third rotary handle 26 in a penetrating way.
In the invention, the second rotating handle 23 is rotated, the second rotating handle 23 drives one of the bidirectional threaded rods 19 to rotate, one of the bidirectional threaded rods 19 drives the other bidirectional threaded rod 19 to rotate through two third belt pulleys 24 and a second belt, the two bidirectional threaded rods 19 drive four threaded blocks 20 to move relatively, the four threaded blocks 20 drive four adjusting plates 10 to move relatively, the four adjusting plates 10 drive four first rollers 12 to move relatively until the four first rollers 12 contact with the steel arch frame, at the moment, the first U-shaped plate 1 is pushed to the proper position of the steel arch frame, at the moment, the rotating shaft 5 is driven to rotate through the first rotating handle 6, the four first belt pulleys 8 are driven to rotate through the first belt pulley 9, the four second belt pulleys 9 drive the four threaded sleeves 4 to rotate, the four threaded sleeves 4 drive the four first threaded rods 3 to move relatively until the four threaded rods 3 contact and fix the four first rollers 12, then the third rotating handle 26 is rotated, the second rotating handle 26 drives the second U-shaped plate 25 to rotate, and the second U-shaped plate 25 drives the second threaded rods 15 to move up and down until the two threaded rods 15 are positioned properly.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. The utility model provides a positioner of tunnel preliminary bracing steel arch stock drilling, includes fixed establishment, its characterized in that, fixed establishment includes first U template (1), be equipped with four splint (2) in first U template (1), four splint (2) opposite lateral wall equal fixedly connected with first threaded rod (3), four first threaded rod (3) keep away from the one end of four splint (2) and all slip through first U template (1) setting, four first threaded rod (3) external thread cover is equipped with threaded sleeve (4), four threaded sleeve (4) all rotate with first U template (1) lateral wall and are connected, rotate on first U template (1) and run through and be equipped with pivot (5), the one end coaxial fixedly connected with first twist grip (6) of pivot (5), be connected through first drive mechanism (7) transmission between pivot (5) and the four threaded sleeve (4), the interior bottom fixedly connected with magnet (27) of first U template (1);
still include positioning mechanism, positioning mechanism includes four regulating plates (10), four first threaded rod (3) slide respectively and run through four regulating plates (10) setting, be equipped with in first U template (1) and be used for carrying out adjustment mechanism (11) to four regulating plates (10), four regulating plates (10) are close to all install first gyro wheel (12) on the lateral wall in the middle of first U template (1), second gyro wheel (13) are installed in upper end four corners department of first U template (1), both arms all are equipped with fluting (14) about first U template (1), the below of first U template (1) is equipped with second U template (15), both arms of second U template (15) all slide and run through first U template (1) setting, both arms of second U template (15) extend to setting in two fluting (14) respectively, both arms of second U template (15) all are equipped with location drilling (16), be equipped with on first U template (1) and be used for carrying out elevating system (17) to second U template (15).
2. The positioning device for drilling of the tunnel primary support steel arch anchor rod according to claim 1, wherein the first transmission mechanism (7) comprises a first belt pulley (8) and a second belt pulley (9), the first belt pulley (8) is fixedly connected with the rotating shaft (5) coaxially, the second belt pulley (9) is fixedly connected with the threaded sleeve (4) coaxially, and the first belt pulley (8) is in transmission connection with the second belt pulley (9) through a first belt.
3. A positioning device for drilling holes in primary steel arch anchors according to claim 1, wherein the external threads of the two first threaded rods (3) on the two arms of the first U-shaped plate (1) are opposite in direction.
4. The positioning device for the drilling of the tunnel primary support steel arch anchor rod according to claim 1, wherein the adjusting mechanism (11) comprises four grooves (18) arranged at the inner bottom of the first U-shaped plate (1), two bidirectional threaded rods (19) are arranged in a penetrating mode in the grooves (18), threaded blocks (20) are sleeved outside the bidirectional threaded rods (19) in a threaded mode, the four threaded blocks (20) are respectively and slidably connected with the inner side walls of the four grooves (18), the four threaded blocks (20) are respectively and fixedly connected with the four adjusting plates (10), a cavity (21) is formed in the first U-shaped plate (1), the two bidirectional threaded rods (19) are all arranged through the cavity (21) and are in transmission connection through a second transmission mechanism (22), and one end of one bidirectional threaded rod (19) penetrates through the first U-shaped plate (1) in a rotating mode and is fixedly connected with a second rotating handle (23) in a coaxial mode.
5. A positioning device for drilling a tunnel primary support steel arch anchor rod according to claim 4, wherein the second transmission mechanism (22) comprises two third belt pulleys (24), the two third belt pulleys (24) are in transmission connection through a second belt, and the two third belt pulleys (24) are respectively and fixedly connected with two bidirectional threaded rods (19) in a coaxial way.
6. A positioning device for drilling a tunnel primary support steel arch anchor rod according to claim 1, wherein the lifting mechanism (17) comprises a second threaded rod (25) rotatably connected with the lower end of the first U-shaped plate (1), and the lower end thread of the second threaded rod (25) penetrates through the second U-shaped plate (15) and is coaxially and fixedly connected with a third rotating handle (26).
7. The positioning device for drilling holes in the primary support steel arch anchor rod of the tunnel according to claim 4, wherein threaded holes matched with the bidirectional threaded rod (19) are formed in two threaded blocks (20) positioned outside the same bidirectional threaded rod (19), and threads in the two threaded holes are opposite in rotation direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111193030.5A CN113931668B (en) | 2021-10-13 | 2021-10-13 | Positioning device for tunnel primary support steel arch stock drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111193030.5A CN113931668B (en) | 2021-10-13 | 2021-10-13 | Positioning device for tunnel primary support steel arch stock drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113931668A CN113931668A (en) | 2022-01-14 |
| CN113931668B true CN113931668B (en) | 2023-09-15 |
Family
ID=79278688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111193030.5A Active CN113931668B (en) | 2021-10-13 | 2021-10-13 | Positioning device for tunnel primary support steel arch stock drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113931668B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008169631A (en) * | 2007-01-12 | 2008-07-24 | Asahi Kasei Homes Kk | Construction member installation hole positioning device |
| CN106761494A (en) * | 2017-03-14 | 2017-05-31 | 中铁十七局集团有限公司 | A kind of guider and method for tunnel pre-grouting armature boring |
| CN207858144U (en) * | 2018-01-05 | 2018-09-14 | 中铁二十四局集团浙江工程有限公司 | A kind of auxiliary device for the processing of tunnel support frame |
| CN110395288A (en) * | 2019-07-08 | 2019-11-01 | 安徽晟源环保新型材料有限公司 | A kind of mining transportation device |
| CN210636846U (en) * | 2019-05-28 | 2020-05-29 | 信阳市水利勘测设计院 | Reservoir reinforcing bracket |
| CN210757305U (en) * | 2019-08-27 | 2020-06-16 | 日照华圣机械制造有限公司 | Fixing device convenient to clamp and used for machining |
| CN112901077A (en) * | 2021-05-06 | 2021-06-04 | 中铁九局集团第七工程有限公司 | Positioning device and positioning method for tunnel primary support steel arch anchor rod drilling |
-
2021
- 2021-10-13 CN CN202111193030.5A patent/CN113931668B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008169631A (en) * | 2007-01-12 | 2008-07-24 | Asahi Kasei Homes Kk | Construction member installation hole positioning device |
| CN106761494A (en) * | 2017-03-14 | 2017-05-31 | 中铁十七局集团有限公司 | A kind of guider and method for tunnel pre-grouting armature boring |
| CN207858144U (en) * | 2018-01-05 | 2018-09-14 | 中铁二十四局集团浙江工程有限公司 | A kind of auxiliary device for the processing of tunnel support frame |
| CN210636846U (en) * | 2019-05-28 | 2020-05-29 | 信阳市水利勘测设计院 | Reservoir reinforcing bracket |
| CN110395288A (en) * | 2019-07-08 | 2019-11-01 | 安徽晟源环保新型材料有限公司 | A kind of mining transportation device |
| CN210757305U (en) * | 2019-08-27 | 2020-06-16 | 日照华圣机械制造有限公司 | Fixing device convenient to clamp and used for machining |
| CN112901077A (en) * | 2021-05-06 | 2021-06-04 | 中铁九局集团第七工程有限公司 | Positioning device and positioning method for tunnel primary support steel arch anchor rod drilling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113931668A (en) | 2022-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1171683B2 (en) | Pipe running tool | |
| US6637526B2 (en) | Offset elevator for a pipe running tool and a method of using a pipe running tool | |
| US3340938A (en) | Semi-automated drilling rig | |
| BRPI0709008A2 (en) | manipulable spider components adapted for operation in conjunction with a vertical reciprocating control line guide | |
| CN113931668B (en) | Positioning device for tunnel primary support steel arch stock drilling | |
| CN104653127A (en) | Sleeve straightening mechanical arm | |
| CN210061636U (en) | Portal that wall fluting perforating device used | |
| CN201258695Y (en) | Portable drill stand | |
| CN211205068U (en) | Presplitting blasting and smooth blasting device based on overseas complex environment | |
| CN216355703U (en) | Electric threading device for building construction | |
| CN210858429U (en) | Sliding door structure | |
| CN211342758U (en) | Drilling machine for geological drilling with stable work | |
| CN115123906A (en) | Hanging basket auxiliary construction device and method for building outer wall construction | |
| US3080007A (en) | Roof drilling and bolting machine and wrench extension therefor | |
| US2283866A (en) | Drilling rig | |
| CN212376580U (en) | Semi-automatic drilling machine for mine greening | |
| CN213796467U (en) | Simple eye position calibration instrument for drilling on roadway roof | |
| CN214401234U (en) | Subway rail side ditch drilling equipment | |
| CN212837644U (en) | Geology reconnaissance probing device | |
| CN213461077U (en) | Auxiliary supporting device for laying pipeline for communication pipeline construction | |
| CN221074131U (en) | Workover rig well frame adjusting device | |
| CN212583621U (en) | Simple water drill device | |
| CN218809984U (en) | Slide rail type hoisting mechanism | |
| CN219130851U (en) | Auxiliary device punches of bridge steel construction | |
| CN213336133U (en) | Engineering topography survey and drawing auxiliary assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |