CN216512579U - Make things convenient for hoisting apparatus of tunnel bow member construction - Google Patents
Make things convenient for hoisting apparatus of tunnel bow member construction Download PDFInfo
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- CN216512579U CN216512579U CN202123312670.1U CN202123312670U CN216512579U CN 216512579 U CN216512579 U CN 216512579U CN 202123312670 U CN202123312670 U CN 202123312670U CN 216512579 U CN216512579 U CN 216512579U
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- lifting rod
- arch
- fixed pulley
- arch centering
- installed arch
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Abstract
The utility model relates to the technical field of tunnel construction, in particular to a hoisting device convenient for tunnel arch center construction. The hoisting device comprises an installed arch centering and a pre-installed arch centering, wherein an installed arch centering lifting rod is arranged on the installed arch centering, a pre-installed arch centering lifting rod is arranged on the pre-installed arch centering, the position height of the installed arch centering lifting rod is consistent with that of the pre-installed arch centering lifting rod, the outer end portions of the installed arch centering lifting rod and the pre-installed arch centering lifting rod are both arranged in a bent mode, a pulley block is arranged between the installed arch centering lifting rod and the pre-installed arch centering lifting rod, and the pulley block comprises a fixed pulley block installed on the installed arch centering lifting rod, a movable pulley installed on the pre-installed arch centering lifting rod and a traction steel strand wound between the fixed pulley block and the movable pulley. The hoisting device can shorten the installation time of the arch frame, reduce personnel and equipment on the operation surface, greatly reduce safety risks and meet accurate butt joint.
Description
Technical Field
The utility model relates to the technical field of tunnel construction, in particular to a hoisting device convenient for tunnel arch center construction.
Background
In the construction of a single-line soft rock large-deformation tunnel, due to the fact that the deformation rate of surrounding rocks is high, the tunnel excavation with a long continuous deformation period and the arch support operation surface are narrow, large equipment cannot meet construction requirements, meanwhile, the weight of an arch for supporting the soft rock large-deformation tunnel is too heavy, the weight of the arch per extended meter is larger than 40kg, the weight of the single arch to be installed is 200 kg-300 kg, the large equipment or manpower cannot quickly install the arch under the narrow operation surface, the surrounding rocks cannot be supported for a long time, the upper installed arch is in an unconstrained state, the time is too long, the tunnel collapse probability is greatly improved under the condition, the life safety of field operation personnel is difficult to guarantee, and serious potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that large equipment or workers cannot quickly install the arch centering in the construction of the single-line soft rock large-deformation tunnel, the collapse probability of the tunnel is greatly improved, serious potential safety hazards exist and the like, the utility model provides the hoisting device which is convenient for the construction of the tunnel arch centering, and can reduce personnel and equipment on the operation surface and greatly reduce safety risks.
The technical scheme adopted by the utility model for realizing the purpose is as follows: a hoisting device convenient for tunnel arch construction comprises an installed arch and a pre-installed arch, wherein the installed arch is provided with an installed arch lifting rod, the pre-installed arch is provided with a pre-installed arch lifting rod, the position height of the installed arch lifting rod is basically consistent with that of the pre-installed arch lifting rod, the outer end parts of the installed arch lifting rod and the pre-installed arch lifting rod are both arranged in a bending way, a pulley block is installed between the installed arch lifting rod and the pre-installed arch lifting rod, the pulley block comprises a fixed pulley block installed on the installed arch lifting rod, a movable pulley installed on the pre-installed arch lifting rod and a traction steel strand wound between the fixed pulley block and the movable pulley, the fixed end of the traction steel strand is connected with the movable pulley, the free end of the traction steel strand is provided with a traction handle, and the fixed pulley block comprises a fixed pulley block hanger, the upper portion of the fixed pulley block lifting appliance is installed on the installed arch frame lifting rod, a first fixed pulley is installed in the middle of the fixed pulley block lifting appliance, a second fixed pulley is installed on the lower portion of the fixed pulley block lifting appliance, and a braking movable clamp is installed on the fixed pulley block lifting appliance above the first fixed pulley.
Further, the second fixed pulley is smaller than the first fixed pulley in size.
Furthermore, the fixed end of the traction steel strand is sequentially wound and penetrates through the first fixed pulley, the second fixed pulley and the movable pulley to be connected with the movable pulley.
Furthermore, the braking movable clamp comprises a clamp and a baffle for limiting the clamp, the baffle is installed on one side of the fixed pulley block lifting appliance, the clamp is installed on the fixed pulley block lifting appliance in a rotating mode through a rotating shaft, the clamp is in a triangular prism shape, the clamp comprises a clamping end and a limiting end, the clamping end located at the bottom of the clamp is clamped with the traction steel strand, and the limiting end of the clamp is located on one side of the baffle.
Furthermore, the distance between the clamping end at the bottom of the clamping apparatus and the first fixed pulley is smaller than the diameter of the traction steel strand.
Furthermore, the movable pulley is installed on the pre-installed arch frame lifting rod through a movable pulley lifting appliance, one end of the movable pulley lifting appliance is connected with the fixed end of the traction steel strand, the movable pulley is installed in the middle of the movable pulley lifting appliance, and the other end of the movable pulley lifting appliance is connected with the pre-installed arch frame lifting rod.
Furthermore, the traction steel strand can also be a gear chain or a chain.
Furthermore, the installed arch center lifting rod and the pre-installed arch center lifting rod are both made of deformed steel with the diameter of 22 mm.
Furthermore, the installed arch centering and the pre-installed arch centering have the same structure and respectively comprise an A unit positioned at the arch part at the top end, a B unit respectively connected with two ends of the A unit, a C unit respectively connected with two ends of the B unit and a D unit respectively connected with two ends of the C unit, and the pulley block is respectively installed on the C unit and the D unit of the installed arch centering and the pre-installed arch centering.
The utility model has the technical effects and advantages that: the hoisting device convenient for tunnel arch construction provided by the utility model can shorten the arch installation time, reduce personnel and equipment on the operation surface, greatly reduce safety risk and meet accurate butt joint; the free end of the traction steel strand is provided with a traction handle, so that the operation of a person in the installation process of the arch frame is facilitated;
the hoisting device reduces 200 kg-300 kg of arch centering to 60 kg-100 kg of operation weight by using a pulley block, the number of operation people is reduced to 3 people from 8 people (1 person controls braking and installs a bolt, and 2 people lift the arch centering);
the movable braking clamp is mounted on the fixed pulley block lifting appliance above the fixed pulley, the movable braking clamp can only rotate anticlockwise and move, the baffle plate plays a limiting role, the clamping tool and the traction steel strand generate friction force to stop the traction steel strand from sliding leftwards, the effect of stopping the falling of the movable pulley is achieved, safety is improved, and the installation of the arch frame is facilitated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a brake release clip mounting structure according to the present invention;
FIG. 3 is a side view of the brake release mounting structure of the present invention;
FIG. 4 is a schematic view of the arch structure of the present invention;
wherein: 1-installed arch frame lifting rod, 2-fixed pulley I, 3-fixed pulley II, 4-traction steel stranded wire, 5-movable pulley, 6-traction handle, 7-pre-installed arch frame lifting rod, 8-installed arch frame, 9-pre-installed arch frame, 10-fixture, 11-rotating shaft, 12-baffle, 13-clamping end, 14-limiting end, 15-fixed end of traction steel stranded wire, 16-fixed pulley hanger and 17-movable pulley hanger.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Example (b):
as shown in fig. 1-4, a lifting device for facilitating tunnel arch construction comprises an installed arch 8 and a pre-installed arch 9, the installed arch 8 is provided with an installed arch lifting rod 1, the pre-installed arch 9 is provided with a pre-installed arch lifting rod 7, the installed arch lifting rod 1 and the pre-installed arch lifting rod 7 are both made of deformed steel with the diameter of 22mm, the installed arch lifting rod 1 and the pre-installed arch lifting rod 7 are basically consistent in position height, the outer end portions of the installed arch lifting rod 1 and the pre-installed arch lifting rod 7 are both arranged in a bending way, a pulley block is arranged between the installed arch lifting rod 1 and the pre-installed arch lifting rod 7, the pulley block comprises a fixed pulley block arranged on the installed arch lifting rod 1, a movable pulley 5 arranged on the pre-installed arch lifting rod 7 and a traction steel stranded wire 4 wound between the fixed pulley block and the movable pulley 5, a fixed end 15 of a traction steel strand is connected with a movable pulley 5, a traction handle 6 is arranged at the free end of the traction steel strand, a fixed pulley block comprises a fixed pulley block lifting appliance 16, the upper part of the fixed pulley block lifting appliance 16 is arranged on an installed arch frame lifting rod 1, a fixed pulley I2 is arranged in the middle of the fixed pulley block lifting appliance 16, a fixed pulley II 3 is arranged at the lower part of the fixed pulley block lifting appliance 16, the size of the fixed pulley II 3 is smaller than that of the fixed pulley I2, the fixed end 15 of the traction steel strand sequentially winds through the fixed pulley I2, the movable pulley 5 and the fixed pulley II 3 and then is connected with the movable pulley 5, a braking movable clamp is arranged on the fixed pulley block lifting appliance 16 above the fixed pulley I2 and comprises a clamp 10 and a baffle 12 for limiting the clamp 10, the baffle 12 is arranged on one side of the fixed pulley block lifting appliance 16, in the embodiment, a left side, a rotating shaft 11 is arranged on the fixed pulley block lifting appliance 16, the clamp 10 is rotatably arranged on the fixed pulley block lifting appliance 16 through the rotating shaft 11, the fixture 10 is triangular prism-shaped, the fixture 10 comprises a clamping end 13 positioned at the bottom and a limiting end 14 positioned at the left side, the traction steel strand 4 is arranged between the clamping end 13 and the fixed pulley I2, the clamping end 13 positioned at the bottom of the fixture 10 can be clamped with the traction steel strand 4, the distance between the clamping end 13 positioned at the bottom of the fixture 10 and the fixed pulley I2 is smaller than the diameter of the traction steel strand 4, the limiting end 14 of the fixture 10 is positioned at one side of the baffle 12, when the clamping end 13 positioned at the bottom of the fixture 10 is clamped with the traction steel strand 4, the limiting end 14 positioned at the left side of the fixture 10 is abutted against the baffle 12, the movable pulley 5 is arranged on the pre-installed arch frame lifting rod 7 through a movable pulley hanger 17, one end of the movable pulley hanger 17 is connected with a fixed end 15 of the traction steel strand, the movable pulley 5 is arranged at the middle part of the movable pulley hanger 17, the other end of the movable pulley hanger 17 is connected with the pre-installed arch frame lifting rod 7, the installed arch frame 8 and the pre-installed arch frame 9 have the same structure, the pulley block is respectively arranged on the C unit and the D unit of the installed arch centering 8 and the pre-installed arch centering 9.
The traction steel strand 4 can also be a gear chain or a chain.
In the application process, firstly, an installed arch center lifting rod 1 is arranged on an installed arch center 8, a pre-installed arch center lifting rod 7 is arranged on a pre-installed arch center 9, a pulley block is installed between the installed arch center lifting rod 1 and the pre-installed arch center lifting rod 7, a traction steel strand 4 is installed, after installation of each part is completed, a traction handle 6 is pulled, a fixed pulley I2 is positioned through a brake movable clamp after the pre-installed arch center 9 is attached to the end portion of the installed arch center 8, the brake movable clamp can only rotate anticlockwise, a baffle plate 12 plays a role in limiting clockwise rotation of the clamp 10, when the movable pulley 5 is pulled to ascend, the traction steel strand 4 penetrates through the bottom end of the clamp 10 of the brake movable clamp from left to right, the clamp 10 can be driven to rotate anticlockwise to open, when the arch center is pulled to a preset position, when the traction steel strand 4 is loosened, the clamp 10 automatically falls on the traction steel strand 4 to be clamped with the traction steel strand 4, and the fixture 10 can not rotate leftwards along with the traction steel strand 4 through the baffle 12, the fixture 10 and the traction steel strand 4 generate friction force to stop the traction steel strand 4 from sliding leftwards, the purpose of stopping the falling of the movable pulley 5 is achieved, finally, subsequent connection and fixation between arches are carried out, after the arches are connected, the fixture 10 is manually lifted rightwards, the traction steel strand 4 can be loosened, and the next arch is installed.
Can be fast accurate through this hoisting apparatus dock the installation to the bow member, reduce the input of manpower, material resources, reduce the input cost when improving work efficiency.
While embodiments of the utility model have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (9)
1. The utility model provides a make things convenient for hoisting apparatus of tunnel bow member construction which characterized in that: the device comprises an installed arch centering and a pre-installed arch centering, wherein an installed arch centering lifting rod is arranged on the installed arch centering, a pre-installed arch centering lifting rod is arranged on the pre-installed arch centering, the position height of the installed arch centering lifting rod is basically consistent with that of the pre-installed arch centering lifting rod, the outer end parts of the installed arch centering lifting rod and the pre-installed arch centering lifting rod are both arranged in a bending mode, a pulley block is arranged between the installed arch centering lifting rod and the pre-installed arch centering lifting rod, the pulley block comprises a fixed pulley block arranged on the installed arch centering lifting rod, a movable pulley arranged on the pre-installed arch lifting rod and a traction steel strand wound between the fixed pulley block and the movable pulley, the fixed end of the traction steel strand is connected with the movable pulley, the free end of the traction steel strand is provided with a traction handle, the fixed pulley block comprises a fixed pulley block lifting appliance, and the upper part of the fixed pulley block lifting appliance is arranged on the installed arch centering lifting rod, the middle part of the fixed pulley block lifting appliance is provided with a first fixed pulley, the lower part of the fixed pulley block lifting appliance is provided with a second fixed pulley, and a braking movable clamp is arranged on the fixed pulley block lifting appliance above the first fixed pulley.
2. A lifting device for facilitating tunnel arch construction according to claim 1, wherein: the second fixed pulley is smaller than the first fixed pulley in size.
3. A lifting device for facilitating tunnel arch construction according to claim 1, wherein: and the fixed end of the traction steel strand is sequentially wound and penetrates through the first fixed pulley, the second fixed pulley and the movable pulley and then is connected with the movable pulley.
4. A lifting device for facilitating tunnel arch construction according to claim 1, wherein: the braking loose clamp comprises a clamp and a baffle for limiting the clamp, the baffle is installed on one side of the fixed pulley block lifting appliance, the clamp is rotatably installed on the fixed pulley block lifting appliance through a rotating shaft and is in a triangular prism shape, the clamp comprises a clamping end and a limiting end, the clamping end positioned at the bottom of the clamp is clamped with the traction steel strand, and the limiting end of the clamp is positioned on one side of the baffle.
5. A lifting device for facilitating tunnel arch construction according to claim 4, wherein: and the distance between the clamping end at the bottom of the clamping apparatus and the first fixed pulley is smaller than the diameter of the traction steel strand.
6. A lifting device for facilitating tunnel arch construction according to claim 1, wherein: the movable pulley is installed on the pre-installed arch center lifting rod through a movable pulley hanger, one end of the movable pulley hanger is connected with the fixed end of the traction steel strand, the movable pulley is installed in the middle of the movable pulley hanger, and the other end of the movable pulley hanger is connected with the pre-installed arch center lifting rod.
7. A lifting device for facilitating tunnel arch construction according to claim 1, wherein: the traction steel strand can also be a gear chain or a chain.
8. A lifting device for facilitating tunnel arch construction according to claim 1, wherein: the installed arch center lifting rod and the pre-installed arch center lifting rod are both made of deformed steel with the diameter of 22 mm.
9. A lifting device for facilitating tunnel arch construction according to claim 1, wherein: the installed arch centering and the pre-installed arch centering have the same structure and respectively comprise an A unit positioned at the arch part at the top end, a B unit respectively connected with the two ends of the A unit, a C unit respectively connected with the two ends of the B unit and a D unit respectively connected with the two ends of the C unit, and the pulley block is respectively installed on the C unit and the D unit of the installed arch centering and the pre-installed arch centering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123312670.1U CN216512579U (en) | 2021-12-27 | 2021-12-27 | Make things convenient for hoisting apparatus of tunnel bow member construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123312670.1U CN216512579U (en) | 2021-12-27 | 2021-12-27 | Make things convenient for hoisting apparatus of tunnel bow member construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216512579U true CN216512579U (en) | 2022-05-13 |
Family
ID=81505123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123312670.1U Active CN216512579U (en) | 2021-12-27 | 2021-12-27 | Make things convenient for hoisting apparatus of tunnel bow member construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216512579U (en) |
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2021
- 2021-12-27 CN CN202123312670.1U patent/CN216512579U/en active Active
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