CN210919766U - Integral bolt falling prevention device - Google Patents
Integral bolt falling prevention device Download PDFInfo
- Publication number
- CN210919766U CN210919766U CN201922103417.1U CN201922103417U CN210919766U CN 210919766 U CN210919766 U CN 210919766U CN 201922103417 U CN201922103417 U CN 201922103417U CN 210919766 U CN210919766 U CN 210919766U
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- China
- Prior art keywords
- bolt
- protective sleeve
- rubber
- hexagon head
- rubber rope
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- 230000002265 prevention Effects 0.000 title claims description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 45
- 230000032683 aging Effects 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses an integral bolt device that falls that prevents connects the rope by the protective sheath of ageing-resistant rubber preparation and the rubber of the whole preparation between the protective sheath and constitutes. On the rubber protective sheath was fixed in the high strength bolt, exerted great binding power to the bolt, simultaneously by rubber rope with a plurality of protective sheaths interconnect, made the production restraint of protective sheath room form overall structure, reached the purpose that prevents the bolt fracture and fall, avoided producing the incident. The utility model has the advantages of simple structure, reasonable structure, convenient installation, low manufacturing cost, easy installation and replacement, beautiful appearance and the like, and has good engineering application prospect.
Description
Technical Field
The utility model relates to a bridge engineering disaster prevention and reduction field, in particular to device of reply high strength bolt disease that falls, specific bolt device that falls that says so.
Background
With the wide application of steel bridges, particularly steel trusses, which are connected by bolts in domestic high-speed railway bridges and highway bridges, the falling diseases of high-strength bolts are more and more, the driving safety is seriously influenced, great potential safety hazards are caused for the safe operation of the bridges, and the life and property safety of people is threatened. At present, the coping method aiming at the diseases is very deficient, and falling bolts are mainly picked up through manual patrol. In order to ensure the safety of patrolmen, the traffic must be closed during patrolling, so that the efficiency of traffic facilities is reduced; meanwhile, the thoroughness of manual inspection and pickup is difficult to guarantee, and in case of missing inspection, serious consequences can be caused to vehicles running at high speed, particularly high-speed railway trains. Therefore, the development of a bolt falling prevention device is urgently needed.
The existing bolt anti-falling device adopts a separating device, so that the overall performance is poor, and the use effect is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a simple structure, convenient installation, economic and effective bolt falling prevention device.
The utility model adopts the technical proposal that: an integral bolt falling prevention device comprises a protective sleeve, a pressing and pulling rib, a positioning boss and a rubber rope;
the protective sleeve is made of aging-resistant rubber, has high durability and long service life, avoids frequent replacement of the anti-drop device, has a large hexagonal head shape in the inner diameter, is matched with the large hexagonal head high-strength bolt in the protective sleeve in shape, and can provide enough holding force for the bolt; the inner diameter of the protective sleeve is smaller than the outer diameter of the large hexagon head high-strength bolt and is tightly combined with the large hexagon head high-strength bolt;
pressing and pulling ribs for fixing are arranged at the top end and the bottom end of the outer surface of the protective sleeve, so that the protective sleeve can be quickly and accurately fixed to a joint surface of an installation tool, and quick installation is realized;
the protective sleeves are multiple, and adjacent protective sleeves are connected through rubber ropes, so that multiple bolts are connected, and the bolts are prevented from falling;
the side of the protective sleeve is provided with a positioning boss at the lower part of the rubber rope to assist in the installation and positioning of the protective sleeve.
Preferably, the inner diameter of the protective sleeve is in a large hexagon head shape, pre-pressure can be applied to the large hexagon head high-strength bolt, and the combination of the protective sleeve and the bolt can be strengthened.
Preferably, the rubber rope is a rubber rope with a gradually-changed section, so that the tensile capacity of the rubber rope can be increased, and the stress concentration at the joint of the rubber rope and the protective sleeve is reduced.
Preferably, the length of the rubber rope can be changed according to the distance between the bolts, and the requirements of different bolt arrangement modes are met.
The utility model has the advantages that: the utility model discloses effectively solved bolted connection steel construction bridge and adopted artifical patrol to pick up the not enough of bolt that drops, avoided the bolt to drop and cause serious consequence harm vehicle and pedestrian's safety, connect rubber rope and protective sheath and be whole continuous, do not establish connecting device between the two, have simple structure, structural style reasonable, simple to operate, low in manufacturing cost, easily install advantages such as change, the appearance is pleasing to the eye, have good engineering application prospect.
Drawings
Fig. 1 is a schematic view of the bolt fall prevention device of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a sectional view taken along line B-B in fig. 1.
In the figure: 1-protective sleeve; 2, pressing and pulling ribs; 3, positioning a boss; 4-rubber rope.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, 2 and 3: an integral bolt falling prevention device comprises a protective sleeve 1, a pressing and pulling rib 2, a positioning boss 3 and a rubber rope 4;
the protective sleeve 1 is made of aging-resistant rubber, the inner diameter of the protective sleeve 1 is in a large hexagon head shape, the inner diameter size is slightly smaller than the outer diameter size of a large hexagon head high-strength bolt, and the protective sleeve is pressed along the axial direction of the bolt manually or by means of a tool during installation and is sleeved on a nut at the end part of the bolt; protective sheath 1 all needs the installation at the both ends of bolt, can effectively prevent that the bolt of arbitrary one side from falling. The inner diameter of the protective sleeve 1 is slightly smaller than the outer diameter of the large hexagon head high-strength bolt, the inner diameter needs to be determined according to the requirement of friction force between the bolt and the protective sleeve, and the friction force is larger than the dead weight of the bolt;
the top end and the bottom end of the outer surface of the protective sleeve 1 are provided with press-pull ribs 2 for fixing, and the press-pull ribs 2 need to be connected with a press-pull rib junction surface of an installation tool for tight combination during installation and disassembly; the protective sleeves 1 are multiple, and the adjacent protective sleeves 1 are connected through rubber ropes 4, so that multiple bolts are connected, and the bolts are prevented from falling; the side of the protective sleeve 1 is provided with a positioning boss 3 at the lower part of the rubber rope 4, and the positioning boss needs to be aligned with the side rib of the large hexagon bolt during installation to assist quick installation.
The inner diameter of the protective sleeve 1 is in a large hexagon head shape, pre-pressure is applied to a large hexagon head high-strength bolt, and the combination of the protective sleeve and the bolt can be strengthened. The rubber rope 4 is a rubber rope with a gradually-changed section, so that the tensile capacity of the rubber rope 4 can be increased, and the stress concentration at the joint of the rubber rope 4 and the protective sleeve 1 is reduced. The length of the rubber rope 4 can be adjusted according to the bolt distance, only needs to be slightly larger than the bolt distance, more than two protective sleeves can be connected into a group, and when the rubber rope is installed, the vertical bolts are preferably taken as an installation group.
The embodiments of the present invention are described in detail with reference to the drawings, but the present invention is not limited to the described embodiments. Various changes, modifications, substitutions and alterations to these embodiments will occur to those skilled in the art and are intended to be within the scope of the present principles and the spirit of the invention.
Claims (4)
1. The utility model provides an integral bolt device that falls that prevents which characterized in that: comprises a protective sleeve, a pressing and pulling rib, a positioning boss and a rubber rope;
the protective sleeve is made of aging-resistant rubber, the inner diameter of the protective sleeve is in a large hexagon head shape, the shape of the protective sleeve is matched with that of a large hexagon head high-strength bolt in the protective sleeve, and the inner diameter of the protective sleeve is smaller than the outer diameter of the large hexagon head high-strength bolt and is tightly combined with the large hexagon head high-strength bolt;
pressing and pulling ribs for fixing are arranged at the top end and the bottom end of the outer surface of the protective sleeve; the protective sleeves are multiple, and adjacent protective sleeves are connected through rubber ropes; and a positioning boss is arranged on the lower part of the rubber rope on the side surface of the protective sleeve.
2. An integral bolt fall prevention device according to claim 1 wherein: the inner diameter of the protective sleeve is in a large hexagon head shape, is matched with the shape of the large hexagon head high-strength bolt, and applies pre-pressure to the large hexagon head high-strength bolt.
3. An integral bolt fall prevention device according to claim 1 wherein: the rubber rope is a rubber rope with a gradually-changed section.
4. An integral bolt fall prevention device according to claim 1 wherein: the length of the rubber rope is changed according to the distance between the bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922103417.1U CN210919766U (en) | 2019-11-29 | 2019-11-29 | Integral bolt falling prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922103417.1U CN210919766U (en) | 2019-11-29 | 2019-11-29 | Integral bolt falling prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210919766U true CN210919766U (en) | 2020-07-03 |
Family
ID=71348666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922103417.1U Active CN210919766U (en) | 2019-11-29 | 2019-11-29 | Integral bolt falling prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210919766U (en) |
-
2019
- 2019-11-29 CN CN201922103417.1U patent/CN210919766U/en active Active
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