CN114215554A - Supporting device for rapidly installing tunnel steel arch frame - Google Patents
Supporting device for rapidly installing tunnel steel arch frame Download PDFInfo
- Publication number
- CN114215554A CN114215554A CN202111399372.2A CN202111399372A CN114215554A CN 114215554 A CN114215554 A CN 114215554A CN 202111399372 A CN202111399372 A CN 202111399372A CN 114215554 A CN114215554 A CN 114215554A
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- steel arch
- plate
- fixed
- rod
- tunnel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 67
- 239000010959 steel Substances 0.000 title claims abstract description 67
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 16
- 230000001788 irregular Effects 0.000 claims description 3
- 239000011253 protective coating Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 241000565675 Oncomelania Species 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 206010049565 Muscle fatigue Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
-
- 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
- E21D11/183—Supporting means for arch members, not provided for in E21D11/22
-
- 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
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention provides a supporting device for quickly mounting a tunnel steel arch, which comprises a device main body, a height adjusting mechanism, a fixing mechanism and a clamping mechanism, wherein the fixing mechanism comprises a fixing base and steel nails, a plurality of mounting holes are formed in the fixing base, the steel nails penetrate through the mounting holes and are fixed on the ground, the device main body comprises a bearing rod and a connecting plate, the bottom of the bearing rod is of a hollow structure, and the height adjusting mechanism comprises a transmission rod, an elastic block and a pressure reducing spring; the clamping mechanism comprises a transverse plate arranged above the device main body, a fixed plate and a push plate are arranged on the transverse plate, a fixed seat is arranged on the side face of the push plate, a pull rod is arranged on the fixed seat, a handle is arranged on the end face of the pull rod, a sliding groove is formed in the transverse plate, and the push plate is arranged in the sliding groove in a sliding mode. The steel arch fixing clamp can realize the fixed clamping of the steel arch, has high safety performance and long use time, protects the personal safety of workers, has high use value and has wide development prospect.
Description
Technical Field
The invention belongs to the technical field of tunnel steel arch mounting, and particularly relates to a supporting device for quickly mounting a tunnel steel arch.
Background
After the tunnel is excavated, in order to effectively restrain and control the deformation of the surrounding rock and strengthen the stability of the surrounding rock, a part of preliminary bracing in the tunnel needs to be provided with circumferential steel supports, also called steel arches, which are specially-made circumferential I-shaped steel or other section steel and are used for protecting and strengthening the strength and the self-stabilizing capability of the surrounding rock, and the installation process of the preliminary bracing steel arches of the tunnel is completely supported and operated manually, so that the construction risk is higher.
The strutting arrangement that is used for tunnel steel bow member to install fast at present generally can not effectual regulation altitude variation, because the steel bow member is too heavy, ground in the tunnel is not steady when supporting, the topography has the height to have and hangs down, need carry out strutting arrangement's not fixed of co-altitude according to different ground, easily cause workman hand muscle fatigue, and the installation effectiveness is lower, strutting arrangement needs fixed steel bow member simultaneously, the upper portion can not effectual fixed steel bow member, cause the landing easily, the construction risk is higher.
Therefore, how to design a supporting device for quickly installing a tunnel steel arch becomes a problem to be solved at present.
Disclosure of Invention
In order to solve the problem that manual assembly and supporting fixation according to different terrains are not enough in the background art, the invention provides a supporting device for quickly installing a tunnel steel arch.
The technical scheme of the invention is as follows: a supporting device for quickly mounting a tunnel steel arch comprises a device body, a height adjusting mechanism arranged at the bottom of the device body, a fixing mechanism arranged at the bottom of the height adjusting mechanism, and a clamping mechanism arranged at the top of the device body;
the fixing mechanism comprises a fixing base and steel nails arranged on the fixing base, a plurality of mounting holes are formed in the fixing base, and the steel nails penetrate through the mounting holes and are fixed on the ground;
the device main body comprises a bearing rod and a connecting plate arranged in the bearing rod, and the bottom of the bearing rod is of a hollow structure and is used for accommodating a height adjusting mechanism;
the height adjusting mechanism comprises a transmission rod fixed at the bottom of a connecting plate of the device body, an elastic block fixed at the bottom of the transmission rod and pressure reducing springs connected around the transmission rod, and the transmission rod can drive the bearing rod to adjust the height so as to adapt to the construction environment in the tunnel with different heights;
the clamping mechanism comprises a transverse plate arranged above the device main body, a fixed plate and a push plate are arranged on the transverse plate, a fixed seat is arranged on the side face of the push plate, a pull rod is arranged on the fixed seat, a handle is arranged on the end face of the pull rod, a sliding groove is formed in the transverse plate, and the push plate is arranged in the sliding groove in a sliding mode, so that the distance between the push plate and the fixed plate is adjusted, and the steel arch is clamped and fixed.
Further, for the position of kayser push pedal, the bottom both sides of fixed plate are equipped with metal splint, the last a plurality of screws that are equipped with of metal splint, the inside connecting block that is equipped with of handle, the both ends of handle are equipped with the ball-type screw, the ball-type screw sets up the both ends at the connecting block through the answer spring, the pull rod rotates through pivot and fixing base to be connected, and through the pull rod rotatory screw hole department to metal splint with the handle when using, through in the ball-type screw embedding screw of handle both sides, the ball-type oncomelania stretches out and draws back through the answer spring, and when metal splint is inboard, the ball-type screw is through extrusion withdrawal inside the handle, reaches screw hole department, and the ball-type oncomelania pops out the inside embedding screw of handle through the answer spring, accomplishes the fixed of push pedal position, realizes then the fixed of steel bow member to improve the security performance of device.
Furthermore, in order to improve the ground gripping force of the fixing base and improve the fixing stability of the whole device, barb rings are fixed around the bottom of the steel nail, four groups of barb rings are arranged according to the arrangement, and the barb rings are sequentially arranged in a surrounding manner along the height direction of the steel nail.
Furthermore, be equipped with the inoxidizing coating in the mounting hole, the inoxidizing coating can play protection unable adjustment base's effect, avoids damaging unable adjustment base in the steel nail installation.
Furthermore, the bottom of bullet piece is equipped with rubber base, rubber base and unable adjustment base's top fixed connection, rubber base's area is greater than load pole bottom cross sectional area, avoids load pole to damage at the height adjustment in-process, prolongs the life of whole device.
Furthermore, the fixed plate, the push plate, the pull rod and the handle are sequentially arranged from left to right along the top of the device main body in the transverse direction.
Furthermore, a sliding block is arranged at the contact end of the push plate and the transverse plate, and the sliding block is arranged in the sliding groove in a sliding mode and drives the push plate to move transversely.
Furthermore, the pressure reducing spring is in an irregular shape, and the pressure reducing spring, the transmission rod and the elastic block are in linkage connection with the rubber base.
Furthermore, the screw holes are arranged on the metal clamping plate in an arc shape and are consistent with the motion track of the pull rod.
Furthermore, the pull rod and the handle are arranged in a T shape vertically.
Further, the transmission rod comprises a sleeve and a telescopic rod arranged in the sleeve.
The invention has the beneficial effects that:
1. when the device is used, the steel arch is supported by the fixing plate and the push plate, the steel arch is placed between the fixing plate and the push plate, the push plate changes in size through the sliding groove, in order to prevent the steel arch from sliding down due to the fact that the push plate is too large or too small, and construction accidents are caused, the locking mechanism is arranged, the handle is pulled to the screw hole of the metal clamping plate through the pull rod when the device is used, the spherical screws on two sides of the handle are embedded into the screw hole, the spherical screws stretch out and retract through the return spring when the inner side of the metal clamping plate is reached, the spherical screws pop out from the handle through the return spring and are embedded into the screw hole when the inner side of the metal clamping plate reaches the screw hole, and the steel arch is fixed, so that the safety performance of the device is improved, the personal safety of workers is further protected, and the use value of the device is improved;
2. when the device is used, the steel arch frame is required to be installed in the tunnel, the device main body and the elastic block are connected through the transmission rod, a part of distance exists between the device main body and the elastic block when the ground in the tunnel is uneven, the pressure reducing spring is driven through the transmission rod, the supporting device is installed according to different terrains, the height of the device can be effectively changed, time is further saved, meanwhile, in order to prevent the device main body from colliding with the bottom to cause damage of the device, the rubber base is arranged on the base, the device can be effectively prevented from colliding during supporting, and the service life of the device is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of a supporting device for the quick installation of a steel arch of a tunnel according to the invention;
FIG. 2 is a schematic cross-sectional view of the support device for quick installation of a steel arch for a tunnel according to the present invention;
FIG. 3 is a schematic view of a ball screw installation of a support device for quick installation of a tunnel steel arch according to the present invention;
FIG. 4 is an enlarged schematic view of the supporting device for the quick installation of the steel arch of the tunnel according to the invention at the A position;
wherein: 1. bearing rod, 2, fixed plate, 3, pull rod, 4, transverse plate, 5, metal splint, 6, screw hole, 7, unable adjustment base, 8, push pedal, 9, fixing base, 10, handle, 11, spout, 12, connecting plate, 13, transfer line, 14, relief spring, 15, bullet piece, 16, rubber base, 17, ball-type screw, 18, answer spring, 19, connecting block, 20, steel nail, 21, inoxidizing coating, 22, barb ring.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which a person skilled in the art can, without any creative effort, fully implement the present invention.
The embodiment of the invention is as follows: as shown in fig. 1-4, a supporting device for quickly installing a tunnel steel arch comprises a device body, a height adjusting mechanism arranged at the bottom of the device body, a fixing mechanism arranged at the bottom of the height adjusting mechanism, and a clamping mechanism arranged at the top of the device body;
the fixing mechanism comprises a fixing base 7 and steel nails 20 arranged on the fixing base 7, a plurality of mounting holes are formed in the fixing base 7, and the steel nails 20 penetrate through the mounting holes and are fixed on the ground;
the device main body comprises a bearing rod 1 and a connecting plate 12 arranged inside the bearing rod 1, wherein the bottom of the bearing rod 1 is of a hollow structure and is used for accommodating a height adjusting mechanism;
the height adjusting mechanism comprises a transmission rod 13 fixed at the bottom of a connecting plate 12 of the device body, an elastic block 15 fixed at the bottom of the transmission rod 13 and a pressure reducing spring 14 connected around the transmission rod 13, and the transmission rod 13 can drive the bearing rod 1 to adjust the height so as to adapt to the construction environment in the tunnel with different heights;
fixture is including setting up transverse plate 4 in device main part top, be equipped with fixed plate 2, push pedal 8 on transverse plate 4, the side of push pedal 8 is equipped with fixing base 9, be equipped with pull rod 3 on the fixing base 9, the terminal surface of pull rod 3 is equipped with handle 10, pull rod 3 is the T type setting with handle 10 is perpendicular, be equipped with spout 11 on transverse plate 4, push pedal 8 is equipped with the slider with transverse plate 4 contact jaw, the slider slides and sets up and drives push pedal 8 and make lateral shifting in spout 11 to realize the adjustment of push pedal 8 and 2 intervals of fixed plate, realize that the centre gripping of steel bow member is fixed.
In order to lock the position of a push plate 8, metal clamping plates 5 are arranged on two sides of the bottom of a fixing plate 2, a plurality of screw holes 6 are formed in the metal clamping plates 5, a connecting block 19 is arranged inside a handle 10, spherical screws 17 are arranged at two ends of the handle, the spherical screws 17 are arranged at two ends of the connecting block 19 through return springs 18, a pull rod 3 is rotatably connected with a fixing seat 9 through a rotating shaft, the handle 10 is rotated to the screw holes 6 of the metal clamping plates 5 through the pull rod 3 when in use, the spherical screws 17 on two sides of the handle 10 are embedded into the screw holes 6, the spherical screws 17 are stretched through the return springs 18, when the inner side of the metal clamping plates 5 is arranged, the spherical screws 17 retract into the handle 10 through extrusion, when reaching the screw holes 6, the spherical screws 17 are popped out of the handle 10 through the return springs 18 and are embedded into the screw holes 6, so that the position of the push plate 8 is fixed, and then the fixation of the steel arch is realized, thereby improving the safety performance of the device.
In order to improve the ground gripping force of the fixed base 7 and improve the fixing stability of the whole device, barbed rings 22 are fixed around the bottom of the steel nail 20, four groups of barbed rings 22 are arranged, and the four groups of barbed rings 22 are sequentially arranged around the steel nail 20 in the height direction.
According to the invention, the protective layer 21 is arranged in the mounting hole, and the protective layer 21 can play a role of protecting the fixed base 7, so that the fixed base 7 is prevented from being damaged in the installation process of the steel nail 20.
The bottom of the elastic block 15 is provided with the rubber base 16, the rubber base 16 is fixedly connected with the top of the fixed base 7, the area of the rubber base 16 is larger than the area of the bottom section of the bearing rod 1, the bearing rod 1 is prevented from being damaged in the height adjusting process, and the service life of the whole device is prolonged.
The fixing plate 2, the push plate 8, the pull rod 3 and the handle 10 are sequentially arranged from left to right along the top of the device main body in a transverse direction.
The pressure reducing spring 14 is in an irregular shape, and the pressure reducing spring 14, the transmission rod 13 and the elastic block 15 are in linkage connection with the rubber base 16.
The transmission rod 13 of the present invention comprises a sleeve and a telescopic rod arranged in the sleeve.
The screw holes 6 are arranged on the metal clamping plate 5 in an arc shape and are consistent with the motion track of the pull rod 3.
The working principle of the invention is as follows: firstly, the device main body is fixed with the earth surface of a tunnel when in use, the steel nail 20 passes through the mounting hole of the fixed base 7 to be fixed with the ground, the grabbing force to the ground is increased through the barb ring 22 fixed at the bottom of the steel nail 20, after grabbing, in order to prevent the bottom of the fixed base 7 from being damaged by the barb, the use time efficiency is reduced and waste is caused, then the protective layer 21 is arranged on the inner surface of the mounting hole of the fixed base 7, the firmness of the device main body is effectively protected, after fixing, in order to prevent the steel arch from sliding off due to the overlarge distance between the push plate 8 and the fixed plate 2 and cause construction accidents, then the locking mechanism is arranged on the device main body, the steel arch is placed between the fixed plate 2 and the push plate 8 when in use, the push plate 8 is firstly pushed to move through the sliding groove 10 to clamp the steel arch, then the handle 10 is rotated to the screw hole 6 of the metal clamping plate 5 through the rotary pull rod 3, the ball screw 17 is extended and contracted through the return spring 18, when the inner side of the metal splint 5 is positioned, the ball screw 17 is retracted into the handle 10 through extrusion, when reaching the screw hole 6, the ball screw 17 is popped out of the handle 10 through the return spring 18 and is embedded into the screw hole 6, thus, the screw holes 6 at proper positions can be selected according to the size of the steel arch to be clamped, the steel arch is fixed, the device body and the elastic blocks 15 are connected through the transmission rod 13, when the heights in the tunnel are different, a part of distance is reserved between the device body and the elastic block 15, the pressure reducing spring 14 is driven by the transmission rod 13, the supporting device is installed according to different terrains, the height of the device can be effectively changed, a great deal of time is saved, the construction efficiency is improved, meanwhile, in order to prevent the device body from colliding with the bottom to cause damage to the device, the rubber base 16 is arranged, so that the device can be effectively prevented from being damaged due to collision during supporting.
While the preferred embodiments of the invention have been described, it is to be understood that the invention is not limited to the precise embodiments described, and that equipment and structures not described in detail are understood to be practiced as commonly known in the art; any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention by those skilled in the art can be made without departing from the technical scope of the present invention, and still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. A supporting device for quickly mounting a tunnel steel arch is characterized by comprising a device body, a height adjusting mechanism arranged at the bottom of the device body, a fixing mechanism arranged at the bottom of the height adjusting mechanism, and a clamping mechanism arranged at the top of the device body;
the fixing mechanism comprises a fixing base and steel nails arranged on the fixing base, a plurality of mounting holes are formed in the fixing base, and the steel nails penetrate through the mounting holes and are fixed on the ground;
the device main body comprises a bearing rod and a connecting plate arranged in the bearing rod, and the bottom of the bearing rod is of a hollow structure;
the height adjusting mechanism comprises a transmission rod fixed at the bottom of a connecting plate of the device body, an elastic block fixed at the bottom of the transmission rod and a pressure reducing spring connected around the transmission rod;
the clamping mechanism comprises a transverse plate arranged above the device main body, a fixed plate and a push plate are arranged on the transverse plate, a fixed seat is arranged on the side face of the push plate, a pull rod is arranged on the fixed seat, a handle is arranged on the end face of the pull rod, the pull rod and the handle are arranged in a T shape vertically, a sliding groove is formed in the transverse plate, and the push plate is arranged in the sliding groove in a sliding mode.
2. The supporting device for the quick installation of the steel arch centering of the tunnel according to claim 1, wherein the fixing plate is provided with metal clamping plates on both sides of the bottom, the metal clamping plates are provided with a plurality of screw holes, the handle is provided with a connecting block inside, the handle is provided with ball screws at both ends, the ball screws are arranged at both ends of the connecting block through return springs, and the pull rod is rotatably connected with the fixing seat through a rotating shaft.
3. The support device for the quick installation of the steel arch centering of the tunnel according to claim 2, wherein the barb rings are fixed around the bottom of the steel nail, four groups of barb rings are arranged, and the four groups of barb rings are arranged in sequence around the steel nail in the height direction.
4. A support arrangement for the quick installation of a tunnel steel arch as claimed in claim 3, wherein the mounting holes are provided with a protective coating.
5. The supporting device for the quick installation of the steel arch of the tunnel according to claim 4, wherein the bottom of the elastic block is provided with a rubber base, the rubber base is fixedly connected with the top of the fixed base, and the area of the rubber base is larger than the cross-sectional area of the bottom of the bearing rod.
6. A supporting device for the quick installation of a tunnel steel arch according to claim 5, wherein the fixing plate, the push plate, the pull rod and the pull handle are arranged in sequence from left to right along the top of the device body in the transverse direction.
7. A support device for the quick installation of a tunnel steel arch according to claim 6, wherein the end of the push plate, which is contacted with the transverse plate, is provided with a slide block, and the slide block is slidably arranged in the slide groove to drive the push plate to move transversely.
8. The support device for the quick installation of the steel arch of the tunnel according to claim 7, wherein the relief spring is irregular in shape, and the relief spring, the transmission rod and the elastic block are linked with the rubber base.
9. The supporting device for the quick installation of the steel arch of the tunnel according to claim 2, wherein the screw holes are arranged on the metal clamping plates in an arc shape and are consistent with the motion trail of the pull rod.
10. A support device for the quick installation of a tunnel steel arch according to claim 1, wherein the transmission rod comprises a sleeve and a telescopic rod arranged inside the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111399372.2A CN114215554A (en) | 2021-11-24 | 2021-11-24 | Supporting device for rapidly installing tunnel steel arch frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111399372.2A CN114215554A (en) | 2021-11-24 | 2021-11-24 | Supporting device for rapidly installing tunnel steel arch frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114215554A true CN114215554A (en) | 2022-03-22 |
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ID=80698025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111399372.2A Pending CN114215554A (en) | 2021-11-24 | 2021-11-24 | Supporting device for rapidly installing tunnel steel arch frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114215554A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607422A (en) * | 2022-04-19 | 2022-06-10 | 四川省交通建设集团股份有限公司 | Steel arch mounting device for tunnel construction |
-
2021
- 2021-11-24 CN CN202111399372.2A patent/CN114215554A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607422A (en) * | 2022-04-19 | 2022-06-10 | 四川省交通建设集团股份有限公司 | Steel arch mounting device for tunnel construction |
| CN114607422B (en) * | 2022-04-19 | 2023-01-03 | 四川省交通建设集团股份有限公司 | Steel arch mounting device for tunnel construction |
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