CN110593113B - Portable telescopic compression-resistant bending-resistant bracket and installation method - Google Patents
Portable telescopic compression-resistant bending-resistant bracket and installation method Download PDFInfo
- Publication number
- CN110593113B CN110593113B CN201910916444.2A CN201910916444A CN110593113B CN 110593113 B CN110593113 B CN 110593113B CN 201910916444 A CN201910916444 A CN 201910916444A CN 110593113 B CN110593113 B CN 110593113B
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- steel pipe
- block
- stop block
- steel
- bolt
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- 230000006835 compression Effects 0.000 title claims abstract description 55
- 238000007906 compression Methods 0.000 title claims abstract description 55
- 238000005452 bending Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000009434 installation Methods 0.000 title abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 205
- 239000010959 steel Substances 0.000 claims abstract description 205
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012999 compression bending Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
- E04G1/04—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section
- E04G1/06—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section comprising members with rod-like or tubular portions fitting together end to end, with or without separate connecting pieces
Abstract
The invention relates to the technical field of bridge engineering, in particular to a portable telescopic compression-resistant bending-resistant bracket and an installation method, wherein the portable telescopic compression-resistant bending-resistant bracket comprises a first steel pipe, a second steel pipe, an upper stop block, a lower stop block, a first cross beam and a second cross beam; a first steel block and a second steel block which are semi-circular are respectively arranged at one end, close to the first cross beam and the second cross beam, of the first cross beam, and the first steel block and the second steel block are butted to form an annular structure sleeved outside the second steel pipe; the upper stop block and the lower stop block are of square structures, and are respectively connected through a first compression spring and a second compression spring; the upper stop block and the lower stop block are respectively provided with a first arc-shaped groove and a second arc-shaped groove which are used for being matched and clamped with the end faces of the first steel block and the second steel block. The invention can be extended and contracted up and down through the first steel pipe and the second steel pipe, other parts can be detached, the transportation space is saved, the invention is convenient to carry, convenient to install, reusable and easy to popularize.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a portable telescopic compression-resistant bending-resistant bracket and an installation method.
Background
As modern infrastructure construction proceeds, the demand for bridge construction in various areas is also increasing, and there is also a greater concern about it. The bridge is divided into a plurality of parts according to the structural composition, the parts are the next-stage classification of the parts, and the parts comprise cast-in-situ beams. Cast-in-place beams are commonly used for large and medium-sized bridges, and the bridges are manufactured on the construction site because of inconvenient transportation. For bridges, the superstructure refers to the primary load bearing structure that spans an obstacle when the line is interrupted by such an obstacle. When the superstructure is constructed, the support needs to be built, and the built support temporarily used for bearing bridge loads needs to have enough strength and rigidity, so that the stability is required to reach the standard.
At present, bridge workers in China generally adopt dense brackets, reduce bracket spans and the like, but the problems of inconvenient bracket disassembly and transportation, more consumed materials and the like exist, the problem of stress concentration exists when an upper bracket is contacted with other structures, and the problem of material waste is caused by adopting uniform-section steel pipes and adopting large-diameter steel pipes for coping with the stress concentration of the upper part.
Based on the above consideration, the invention designs a portable telescopic compression-resistant bending-resistant bracket and an installation method.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a portable telescopic compression-resistant bending-resistant bracket and an installation method thereof, which greatly improve the compression-resistant bending-resistant performance and effectively solve the problem of concentrated contact stress between the upper part and other parts. The support can be disassembled into various parts, each steel pipe can stretch out and draw back from top to bottom, and finally the steel pipe with smaller diameter can stretch out and draw back into the steel pipe with larger diameter, so that the transportation space is saved, the transportation is convenient, the use is repeated, and the resources are fully utilized.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
the invention discloses a portable telescopic compression-resistant bending-resistant bracket which comprises a first steel pipe, a second steel pipe, an upper stop block, a lower stop block, a first cross beam and a second cross beam, wherein one end of the second steel pipe is sleeved outside the first steel pipe; a first steel block and a second steel block which are semi-circular are respectively arranged at one end, close to the first cross beam and the second cross beam, of the first cross beam, and the first steel block and the second steel block are butted to form an annular structure sleeved outside the second steel pipe; the upper stop block and the lower stop block are of square structures, the upper stop block and the lower stop block are respectively connected through a first compression spring and a second compression spring, and a first steel pipe upper positioning hole and a second steel pipe upper positioning hole which are used for the end part of the upper stop block to pass through, and a first steel pipe lower positioning hole and a second steel pipe lower positioning hole which are used for the end part of the lower stop block to pass through are respectively formed in one sleeved end of the first steel pipe and one sleeved end of the second steel pipe; the upper stop block and the lower stop block are respectively provided with a first arc-shaped groove and a second arc-shaped groove which are used for being matched and clamped with the end faces of the first steel block and the second steel block.
The upper stop block and the lower stop block respectively pass through the upper positioning holes of the first steel pipe and the second steel pipe and the lower positioning holes of the first steel pipe, and the horizontal projection of the extension lines of the upper stop block and the lower stop block is vertical.
The thickness of the first steel block and the second steel block is not greater than the width of the first arc-shaped groove and the width of the second arc-shaped groove.
The upper stop block and the lower stop block are respectively provided with a first limit lug and a second limit lug on the side walls of two ends, which are respectively connected with the first compression spring and the second compression spring.
The outside of first compression spring and second compression spring is equipped with first empty case and second empty case respectively, first, second empty case is cavity both ends open-ended square structure, be equipped with on the tip lateral wall of first, second empty case with first breach and the second breach of first, second spacing lug assorted.
The outer walls of the end parts of the first steel block and the second steel block are respectively provided with a first lug plate and a second lug plate, and the first lug plate and the second lug plate are respectively provided with a first steel block bolt hole and a second steel block bolt hole for the fixing bolt to pass through.
The first beam and the second beam are respectively provided with a first beam bolt and a second beam bolt which penetrate through the outer wall of the first beam and the second beam; the first steel pipe and the second steel pipe are respectively provided with a first steel pipe bolt and a second steel pipe bolt which penetrate through the outer wall of the first steel pipe and the second steel pipe, and the end parts of the first steel pipe bolt and the second steel pipe bolt are respectively connected with the end parts of the first beam bolt and the second beam bolt through supporting frames.
The support frame is square structure, is equipped with the support frame through-hole on its both ends lateral wall.
The included angle between the adjacent supporting frames is 90 degrees.
A method for installing a portable telescopic compression-resistant bending-resistant bracket comprises the following steps:
s1: selecting a bracket with proper specification through stress analysis;
s2: putting the lower stop block and the upper stop block into the first steel pipe from the top in sequence, and enabling the end parts of the upper stop block and the lower stop block to extend out from the upper positioning hole of the first steel pipe and the lower positioning hole of the first steel pipe;
s3: pressing the two ends of the upper stop block and the lower stop block to compress the first compression spring and the second compression spring, sleeving the first steel pipe in the second steel pipe, and stretching the first steel pipe and the second steel pipe to enable the end parts of the upper stop block and the lower stop block to extend out from the upper positioning hole and the lower positioning hole of the second steel pipe;
s4: the first steel block and the second steel block are clamped with the first arc-shaped groove and the second arc-shaped groove on the upper stop block and the lower stop block, and the end parts of the first steel block and the second steel block are connected by bolts;
s5: the support frame is fixed by a first steel pipe bolt, a second steel pipe bolt and a first beam bolt and a second beam bolt.
The invention has the beneficial effects that:
1. according to the invention, the cross section area of the second steel pipe is larger than that of the first steel pipe, so that the problem of overlarge contact stress concentration between the upper part of the bracket and other parts is solved, the compression resistance of the bracket is improved, and materials are fully utilized;
2. according to the invention, the first steel pipe and the second steel pipe can be telescopic up and down, other parts can be detached, the transportation space is saved, the portable and convenient installation are realized, the repeated use is realized, and the popularization is easy;
3. according to the invention, the bending resistance and compression resistance of the support are obviously improved by installing the support frame.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of an uninstalled support stand of the present invention;
FIG. 3 is a schematic view of the structure of the first beam and the second beam according to the present invention;
FIG. 4 is a schematic structural view of a first steel pipe and a second steel pipe according to the present invention;
FIG. 5 is a perspective view showing the construction of first and second steel pipes according to the present invention;
FIG. 6 is a schematic view of the structure of the lower stopper of the present invention;
FIG. 7 is a schematic view of the structure of the upper stopper in the present invention;
FIG. 8 is a schematic view of the structure of the first and second empty boxes in the present invention;
fig. 9 is a schematic structural view of a support frame according to the present invention.
In the drawing, a first steel pipe, a second steel pipe, a 3 upper stop block, a 31 first compression spring, a 32 first arc-shaped groove, a 33 first limit lug, a 34 first notch, a 4 lower stop block, a 41 second compression spring, a 42 second arc-shaped groove, a 43 second limit lug, a 44 second notch, a 5 first beam, a 6 second beam, a 7 second steel pipe upper positioning hole, a 8 second steel pipe lower positioning hole, a 9 first steel block, a 10 second steel block, a 11 first empty box, a 12 second empty box, a 13 first lug plate, a 14 second lug plate, a 15 fixing bolt, a 16 first steel block bolt hole, a 17 second steel block bolt hole, a 18 first beam bolt, a 19 second beam bolt, a 20 first steel pipe bolt, a 21 second steel pipe bolt, a 22 support frame and a 23 support frame through hole.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
see fig. 1-9.
The invention discloses a portable telescopic compression-resistant bending-resistant bracket which comprises a first steel pipe 1, a second steel pipe 2, an upper stop block 3, a lower stop block 4, a first cross beam 5 and a second cross beam 6, wherein one end of the second steel pipe 2 is sleeved outside the first steel pipe 1; a first steel block 9 and a second steel block 10 which are semi-circular are respectively arranged at one end, close to the first cross beam 5 and the second cross beam 6, of each steel block, and the first steel block and the second steel block are butted to form an annular structure sleeved outside the second steel pipe 2; the upper stop block and the lower stop block are in a square structure, wherein the upper stop block and the lower stop block are respectively connected through a first compression spring 31 and a second compression spring 41, and a first steel pipe upper positioning hole, a second steel pipe upper positioning hole 7 and a first steel pipe lower positioning hole and a second steel pipe lower positioning hole 8 for the end part of the lower stop block 4 to pass through are respectively formed in one sleeved end of the first steel pipe 1 and one sleeved end of the second steel pipe 2 and the first steel pipe 1; the upper stop block and the lower stop block are respectively provided with a first arc-shaped groove 32 and a second arc-shaped groove 42 which are used for being matched and clamped with the end surfaces of the first steel block and the second steel block, the cross section area of the second steel pipe 2 is larger than that of the first steel pipe 1, the problem that the contact stress concentration between the upper part of the bracket and other parts is overlarge is solved, the compression resistance of the bracket is improved, and materials are fully utilized; each steel pipe can stretch out and draw back from top to bottom, and other parts can all be dismantled, practice thrift the transportation space, portable, and the installation is convenient, repeatedly usable easily promotes.
After the upper stop block 3 and the lower stop block 4 respectively pass through the upper positioning holes of the first steel pipe and the second steel pipe and the lower positioning holes of the first steel pipe and the second steel pipe, the horizontal projection of the extension lines thereof is vertical,
the thickness of the first steel block 9 and the second steel block 10 is not greater than the width of the first arc-shaped groove 32 and the second arc-shaped groove 42, so that the first steel block 9 and the second steel block 10 can be better inserted into the first arc-shaped groove and the second arc-shaped groove.
The upper stop block 3 and the lower stop block 4 are respectively provided with a first limit bump 33 and a second limit bump 43 on the side walls of two ends, which are respectively connected with the first compression spring 31 and the second compression spring 41, so that the upper stop block and the lower stop block cannot be separated from the upper positioning holes of the first steel pipe and the second steel pipe and the lower positioning holes of the first steel pipe and the second steel pipe under the reset action of the first compression spring and the second compression spring.
The outside of first compression spring 31 and second compression spring 41 is overlapped respectively and is equipped with first empty case 11 and second empty case 12, first, second empty case is cavity both ends open-ended square structure, be equipped with on the tip lateral wall of first, second empty case with first breach 34 and second breach 44 of first, second spacing lug assorted, through setting up first, second empty case ensures that the user presses upper and lower dog both ends for when first, second compression spring compresses, it can keep the level, and can not take place middle part arch etc. condition, ensures that upper and lower dog can normal work.
The end outer walls of the first steel block 9 and the second steel block 10 are respectively provided with a first lug plate 13 and a second lug plate 14, the first lug plate and the second lug plate are respectively provided with a first steel block bolt hole 16 and a second steel block bolt hole 17 for a fixing bolt 15 to penetrate through, and the end parts of the first steel block and the second steel block are better connected by arranging the first lug plate, the second lug plate, the first steel block bolt hole, the second steel block bolt hole, the bolt and the nut.
The first beam 5 and the second beam 6 are respectively provided with a first beam bolt 18 and a second beam bolt 19 which penetrate through the outer walls of the first beam 5 and the second beam 6; the first steel pipe 1 and the second steel pipe 2 are respectively provided with a first steel pipe bolt 20 and a second steel pipe bolt 21 penetrating through the outer walls of the first steel pipe 1 and the second steel pipe, the end parts of the first steel pipe bolt and the second steel pipe bolt are respectively connected with the end parts of the first beam bolt and the second beam bolt through a supporting frame 22, and the bending resistance and the compression resistance of the bracket are obviously improved by installing the supporting frame 22.
The support frame 22 is square structure, is equipped with support frame through-hole 23 on its both ends lateral wall, and support frame 22 passes through support frame through-hole 23 through first, second crossbeam bolt and first, second steel pipe bolt after passing, cooperates with lock nut and installs it.
The included angle between the adjacent support frames 22 is 90 degrees, so that the bending resistance and compression resistance of the support are further improved obviously.
The invention discloses a method for installing a portable telescopic compression-resistant bending-resistant bracket, which comprises the following steps:
s1: selecting a bracket with proper specification through stress analysis;
s2: putting the lower stop block 4 and the upper stop block 3 into the first steel pipe 1 from the top in sequence, and enabling the end parts of the upper stop block 3 and the lower stop block 4 to extend out from the first steel pipe upper positioning hole and the first steel pipe lower positioning hole;
s3: pressing the two ends of the upper stop block and the lower stop block to compress the first compression spring and the second compression spring, retracting the end parts of the upper stop block and the lower stop block into the upper positioning hole and the lower positioning hole of the first steel pipe, sleeving the first steel pipe 1 in the second steel pipe 2, stretching the first steel pipe 1 and the second steel pipe 2, and when the upper stop block and the lower stop block move to the upper positioning hole and the lower positioning hole of the second steel pipe, resetting the first compression spring and the second compression spring to enable the end parts of the upper stop block and the lower stop block to extend out from the upper positioning hole 7 of the second steel pipe and the lower positioning hole 8 of the second steel pipe, so that the limit of the vertical direction of the first steel pipe and the second steel pipe can be completed;
s4: the first steel block 9 and the second steel block 10 are clamped with the first arc-shaped groove and the second arc-shaped groove on the upper stop block and the lower stop block, and the end parts of the first steel block and the second steel block are connected by bolts, so that the upper stop block and the lower stop block cannot retract into the first steel pipe and the second steel pipe in the working process, and the shrinkage of the first steel pipe and the second steel pipe is avoided;
s5: the support frame 22 is fixed by the first steel pipe bolt, the second steel pipe bolt and the first beam bolt and the second beam bolt, and the beam is connected with the steel pipe, so that the bending resistance and the compression resistance are obviously improved.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes or direct or indirect application in the relevant art utilizing the present specification and drawings are included in the scope of the present invention.
Claims (5)
1. The utility model provides a portable telescopic resistance to compression bending support which characterized in that: the steel pipe comprises a first steel pipe (1), a second steel pipe (2) one end of which is sleeved outside the first steel pipe (1), an upper stop block (3), a lower stop block (4), a first cross beam (5) and a second cross beam (6);
a first steel block (9) and a second steel block (10) which are semi-circular are respectively arranged at one end, close to the second cross beam (6), of the first cross beam (5), and the first steel block and the second steel block are butted to form an annular structure sleeved outside the second steel pipe (2);
the upper stop block and the lower stop block are of square structures, wherein the upper stop block and the lower stop block are respectively connected through a first compression spring (31) and a second compression spring (41), and a first steel pipe upper positioning hole, a second steel pipe upper positioning hole (7) and a first steel pipe lower positioning hole and a second steel pipe lower positioning hole (8) which are used for the end part of the lower stop block (4) to pass through are respectively formed in one sleeved end of the first steel pipe (1) and one sleeved end of the second steel pipe (2); the upper stop block and the lower stop block are respectively provided with a first arc-shaped groove (32) and a second arc-shaped groove (42) which are matched and clamped with the end surfaces of the first steel block and the second steel block; the upper stop block (3) and the lower stop block (4) respectively penetrate through the upper positioning holes of the first steel pipe and the second steel pipe and the lower positioning holes of the first steel pipe and the second steel pipe, and the horizontal projection of the extension lines of the upper stop block and the lower stop block is vertical; the two end side walls of the upper stop block (3) and the lower stop block (4) which are respectively connected with the first compression spring (31) and the second compression spring (41) are respectively provided with a first limit lug (33) and a second limit lug (43); the outer parts of the first compression spring (31) and the second compression spring (41) are respectively sleeved with a first empty box (11) and a second empty box (12), the first empty box and the second empty box are of square structures with two open ends, and a first notch (34) and a second notch (44) which are matched with the first limit lug and the second limit lug are arranged on the side walls of the end parts of the first empty box and the second empty box; the first cross beam (5) and the second cross beam (6) are respectively provided with a first cross beam bolt (18) and a second cross beam bolt (19) which penetrate through the outer walls of the first cross beam and the second cross beam; a first steel pipe bolt (20) and a second steel pipe bolt (21) penetrating through the outer walls of the first steel pipe (1) and the second steel pipe (2) are respectively arranged on the first steel pipe and the second steel pipe, and the end parts of the first steel pipe bolt and the second steel pipe bolt are respectively connected with the end parts of the first beam bolt and the second beam bolt through a supporting frame (22); the included angle between the adjacent supporting frames (22) is 90 degrees.
2. The portable telescopic compression-resistant bending-resistant stand according to claim 1, wherein: the thicknesses of the first steel block (9) and the second steel block (10) are not larger than the widths of the first arc-shaped groove (32) and the second arc-shaped groove (42).
3. The portable telescopic compression-resistant bending-resistant stand according to claim 1, wherein: the outer walls of the end parts of the first steel block (9) and the second steel block (10) are respectively provided with a first lug plate (13) and a second lug plate (14), and the first lug plate and the second lug plate are respectively provided with a first steel block bolt hole (16) and a second steel block bolt hole (17) for the fixing bolt (15) to penetrate through.
4. The portable telescopic compression-resistant bending-resistant stand according to claim 1, wherein: the support frame (22) is square structure, is equipped with support frame through-hole (23) on its both ends lateral wall.
5. A method of installing a portable telescopic compression-resistant bracket according to any one of claims 1-4, comprising the steps of:
s1: selecting a bracket with proper specification through stress analysis;
s2: the lower stop block (4) and the upper stop block (3) are sequentially put in from the top of the first steel pipe (1), and the end parts of the upper stop block (3) and the lower stop block (4) extend out from the upper positioning hole and the lower positioning hole of the first steel pipe;
s3: pressing the two ends of the upper stop block and the lower stop block to compress the first compression spring and the second compression spring, sleeving the first steel pipe (1) in the second steel pipe (2), and stretching the first steel pipe (1) and the second steel pipe (2) to enable the end parts of the upper stop block and the lower stop block to extend out from the second steel pipe upper positioning hole (7) and the second steel pipe lower positioning hole (8);
s4: the first steel block (9) and the second steel block (10) are clamped with the first arc-shaped groove and the second arc-shaped groove on the upper stop block and the lower stop block, and the end parts of the first steel block and the second steel block are connected by bolts;
s5: the support frame (22) is fixed by a first steel pipe bolt, a second steel pipe bolt and a first beam bolt and a second beam bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916444.2A CN110593113B (en) | 2019-09-26 | 2019-09-26 | Portable telescopic compression-resistant bending-resistant bracket and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916444.2A CN110593113B (en) | 2019-09-26 | 2019-09-26 | Portable telescopic compression-resistant bending-resistant bracket and installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110593113A CN110593113A (en) | 2019-12-20 |
| CN110593113B true CN110593113B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910916444.2A Active CN110593113B (en) | 2019-09-26 | 2019-09-26 | Portable telescopic compression-resistant bending-resistant bracket and installation method |
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| CN (1) | CN110593113B (en) |
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|---|---|
| CN110593113A (en) | 2019-12-20 |
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