CN107178306B - Assembled stair for bridge detection and application method thereof - Google Patents
Assembled stair for bridge detection and application method thereof Download PDFInfo
- Publication number
- CN107178306B CN107178306B CN201710593366.8A CN201710593366A CN107178306B CN 107178306 B CN107178306 B CN 107178306B CN 201710593366 A CN201710593366 A CN 201710593366A CN 107178306 B CN107178306 B CN 107178306B
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- China
- Prior art keywords
- ladder body
- chassis
- pedal
- supporting rod
- connection point
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/383—Foldable ladders in which the longitudinal members are brought together on folding
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Abstract
The invention discloses an assembled stair for bridge detection, which comprises a ladder body, a supporting rod, a chassis and a protective fence, wherein the supporting rod is used for providing supporting force for the ladder body, and the protective fence is arranged at the top of the ladder body, and the protective fence comprises the following components: the bottom of the ladder body is rotationally connected to the chassis; the first end of the supporting rod is erected on the chassis, and the position, close to the second end, of the supporting rod is rotationally connected with the ladder body; the protective fence comprises a protective frame and an armrest, wherein the protective frame is a right trapezoid, a right-angle waist of the right trapezoid is positioned on the upper portion, the armrest is fixedly connected to a joint of the right-angle waist and the bottom edge of the right trapezoid, and the armrest is positioned on an extension line of the right-angle waist.
Description
Technical Field
The invention relates to the field of bridge detection auxiliary equipment, in particular to an assembled stair for bridge detection and a using method thereof.
Background
In the process of building and using the bridge, the bridge structure is damaged and deteriorated to different degrees before reaching the design age due to the influence of external effects such as environment and harmful substances, vehicles, wind, earthquakes, human factors and the like, fatigue, material structure change and the like. If the damage cannot be detected and maintained in time, the service life of the bridge is shortened if the damage is light, and the bridge is suddenly damaged and collapsed if the damage is heavy. Therefore, the bridge needs to be detected regularly, and the bridge detection vehicle is a common device for bridge health inspection.
However, some bridges in narrow spaces or upper portions of bridges are located in narrow spaces, and large bridge inspection vehicles cannot be used, so that all points to be inspected cannot be covered, and at this time, health inspection of the bridges needs to be achieved by means of convenient mobile stairs.
In addition, the space at the top of the existing stair, which can be used for a worker to stand, is smaller, the work is not easy to spread, and in view of the defects of the existing bridge detection, the inventor actively researches and innovates based on the rich practical experience and professional knowledge of the design and manufacture of the product for many years and the application of the theory, so as to create a movable stair for the low-space bridge detection, and the movable stair has practicability. After continuous research and design and repeated sample test and improvement, the invention with practical value is finally created.
Disclosure of Invention
The invention aims to overcome the defects of the existing bridge detection stairs, and provides the assembled stairs for bridge detection and the use method thereof, which are convenient to use and safe and reliable to operate, thereby being more suitable for practical use and having industrial utilization value.
The aim and the technical problems of the invention are realized by adopting the following technical proposal.
The utility model provides an assembled stair for bridge detects, includes the ladder body, is used for the bracing piece, chassis and the setting of ladder body provides holding power are in the rail guard at ladder body top, wherein:
the bottom of the ladder body is rotationally connected to the chassis;
the first end of the supporting rod is erected on the chassis, and the position, close to the second end, of the supporting rod is rotationally connected with the ladder body;
the protective fence comprises a protective frame and an armrest, wherein the protective frame is a right trapezoid, a right-angle waist of the right trapezoid is positioned on the upper portion, the armrest is fixedly connected to a joint of the right-angle waist and the bottom edge of the right trapezoid, and the armrest is positioned on an extension line of the right-angle waist.
Further, the ladder body comprises two groups of square outer frames and pedals which are arranged in parallel;
at least two cross bars are arranged on the square outer frame, the cross bars are horizontally arranged, and the bottom of the square outer frame is rotationally connected with the chassis;
the pedal is at least two layers, and two opposite sides of the pedal are respectively connected to the corresponding cross bars on the two square outer frames in a rotating mode.
Further, the square outer frame comprises two groups of connecting rods which are arranged in parallel, one end of each connecting rod is rotatably arranged on the chassis, and the other end of each connecting rod is connected with the protective guard.
Further, the pedal comprises an expandable top plate, wherein the length of the expandable top plate is equal to that of the pedal;
the first side of the expandable top plate is rotationally connected with the top pedal, and the second side opposite to the first side is erected on the second end of the supporting rod.
Further, the relationship among the distance B1 between the connection point of the ladder body and the support rod and the first end of the support rod, the distance B2 between the connection point and the second end of the support rod, the distance A1 between the connection point of the ladder body and the chassis and the connection point, and the distance A2 between the connection point of the ladder body and the top layer and the pedal is:
A1:A2=B1:B2。
further, a square groove is formed in the chassis, and the size ratio of the groove to the square outer frame is 1-1.1.
Further, a positioning device is arranged on the side wall of the groove and used for fixing the supporting rod.
Further, the positioning device comprises fixing blocks arranged on the side walls of the grooves, at least two fixing blocks are arranged, and the space formed between every two adjacent fixing blocks can accommodate the first ends of the supporting rods.
Further, fine lines are arranged on the fixing blocks.
Further, the chassis is provided with wheels, and the number of the wheels is 4, and the wheels are respectively arranged on four corners of the chassis.
Further, a connecting part for bearing the expandable top plate is arranged at the second end of the supporting rod, and a bearing surface of the connecting part is parallel to the top pedal.
Further, the fabricated stairway is used for bridge health detection.
By adopting the technical scheme, the following technical effects can be realized:
1) The bottom of the ladder body is rotationally connected with the chassis, so that the ladder body can be completely contained in the chassis, the movement is convenient, the supporting rod is adopted to provide supporting force for the ladder body, and one end of the supporting rod is erected on the chassis, so that the height and the gradient of the ladder body can be completely adjusted through the supporting rod, the operation is convenient, and the ladder can adapt to environments with different height requirements, therefore, the ladder has high universality;
2) The expandable top plate arranged at the top of the ladder body provides a larger and safer working platform for workers;
3) The safety of the staff on the top layer of standing can be guaranteed through the arrangement of the guard rail, and when the ladder body is retracted, the safety guard rail forms a handle of a stair, so that the stair can be moved conveniently.
Drawings
FIG. 1 is a schematic view of an assembled stairway according to the invention;
FIG. 2 is a schematic view of the assembled stair of the present invention when retracted;
FIG. 3 is a partial schematic view of an assembled stair of the present invention;
FIG. 4 is a schematic view of the chassis of the present invention;
wherein:
1-ladder body, 11-square outer frame, 111-connecting rod, 12-pedal and 13-cross bar;
2-supporting rods and 21-connecting parts;
3-chassis, 31-groove, 32-positioning device, 321-fixed block;
4-guard rails, 41-guard frames and 42-armrests;
5-expandable top plate; 6-wheels.
Detailed Description
In order to further describe the technical means and effects adopted by the invention to achieve the preset aim, the specific implementation mode, the characteristics and the effects of the assembled stair for bridge detection and the using method thereof provided by the invention are described in detail below.
As shown in fig. 1, the invention discloses an assembled stair for bridge detection, which comprises a ladder body 1, a supporting rod 2 for providing supporting force for the ladder body 1, a chassis 3 and a protective rail 4 arranged at the top of the ladder body 1, wherein: the bottom of the ladder body 1 is rotationally connected to the chassis 3, specifically, the ladder body 1 comprises two groups of square outer frames 11 and pedals 12 which are arranged in parallel, at least two cross bars 13 are arranged on the square outer frames 11, the cross bars 13 are horizontally arranged, and the bottom of the square outer frames 11 is rotationally connected with the chassis 3. The pedal 12 is at least two layers, and two opposite sides of the pedal 12 are respectively connected to corresponding cross bars 13 on two square outer frames 11 in a rotating way, so that the pedal 12 can be folded and unfolded along with the square outer frames 11 when the ladder body 1 is folded and unfolded, further space is saved, and by utilizing the four-bar principle, when the ladder is unfolded, the pedal 12 is rotationally connected to the cross bars 13 of the ladder, but due to the fact that the connecting point between the ladder body 1 and the support rods 2 is fixed and the bottom of the ladder is fixed, the pedal 12 can bear certain pressure, and due to the fact that two opposite sides of the pedal 12 are respectively connected to the cross bars 13 corresponding to the two square outer frames 11, the two opposite sides of the pedal 12 are located on the same horizontal plane, the pedal 12 is located in a horizontal position, and workers working on the pedal 12 can stand on the pedal 12 more stably, so that comfort in the use process of the ladder is further improved.
Further, the square outer frame 11 includes two sets of parallel connection bars 111, one end of each connection bar 111 is rotatably disposed on the chassis 3, the other end is connected with the guard rail 4, and specifically, one end of each connection bar 111 is hinged on the chassis 3 and can perform rotational movement along the chassis 3. The first end of the supporting rod 2 is erected on the chassis 3, the position of the supporting rod 2, which is close to the second end, is rotationally connected with the ladder body 1, and specifically, the position is hinged, and the second end extends out along the direction of the supporting rod 2 and is used for expanding the supporting force of the top plate. And the second end part is directly connected with the ladder body 1, so that the support rod 2 is easy to be damaged such as cracks, and the service life is reduced.
The protective fence 4 comprises a protective frame 41 and an armrest 42, the protective frame 41 is a right trapezoid, a right-angle waist of the right trapezoid is positioned on the upper portion, the armrest 42 is fixedly connected to a joint of the right-angle waist and the bottom edge of the right trapezoid, and the armrest 42 is positioned on an extension line of the right-angle waist. The arrangement of the protective guard 4 not only can ensure the safety of staff standing on the top-layer pedal 12, but also can be used as the handrail of a flat car formed by the whole stair when the ladder is retracted, so that the staff can conveniently move the stair, and the comfort level of the stair is further increased.
Further, the novel bicycle comprises an expandable top plate 5, the length of the expandable top plate 5 is equal to that of the pedal 12, connection between the expandable top plate 5 and the top pedal 12 is facilitated, in addition, a first side edge of the expandable top plate 5 is rotatably connected with the top pedal 12, and a second side edge opposite to the first side edge is erected on a second end of the support rod 2.
In order to enable the expandable roof 5 and the top floor 12 to be horizontal, the standing stability of the staff is increased, and the relationship among the distance B1 between the connection point of the ladder body 1 and the support rod 2 and the first end of the support rod 2, the distance B2 between the connection point and the second end of the support rod 2, the distance A1 between the connection point of the ladder body 1 and the chassis 3 and the distance A2 between the connection point of the ladder body 1 and the top floor 12 is that:
A1:A2=B1:B2，
by utilizing the principle of similar triangle, the plane formed by the second end of the supporting rod 2 and the top pedal 12 can be horizontal to the chassis 3, so that the expandable top plate 5 arranged between the second end of the supporting rod 2 and the top pedal 12 is in a horizontal position.
In order to facilitate the storage of the ladder body 1, the chassis 3 is provided with a square groove 31, and the size ratio of the groove 31 to the square outer frame 11 is 1-1.1.
In order to increase the supporting force provided by the supporting rod 2 to the ladder body 1, a positioning device 32 is arranged on the side wall of the groove 31 and is used for fixing one end of the supporting rod 2 which is erected on the chassis 3.
Specifically, the positioning device 32 includes fixing blocks 321 disposed on the side walls of the groove 31, at least two fixing blocks 321 are disposed, and a distance between two adjacent fixing blocks 321 can accommodate the first end of the support rod 2, so that safety of workers is endangered in order to increase friction between the end of the support rod 2 and the fixing rod, and accordingly fine lines are disposed on the fixing blocks 321.
In order to improve the effect of the second end of the supporting rod 2 on supporting the expandable top plate 5, the second end of the supporting rod 2 is provided with a connecting portion 21 for bearing the expandable top plate 5, and a bearing surface of the connecting portion 21 is arranged in parallel with the top pedal 12.
In order to facilitate the movement of the stairs, the chassis 3 is provided with 4 wheels 6, and the wheels 6 are respectively arranged at four corners of the chassis 3.
Further, the assembled stair is used for bridge health detection, the stair capable of being stored and adjusted in height is firstly applied to bridge health detection, before the detection, all points to be detected cannot be covered completely in bridge detection in some narrow spaces, so that detection results are affected, data in some narrow spaces and importance thereof, particularly, some connecting parts 21 are located, the beam plates are more, a large-size detection vehicle cannot enter, manual detection is needed, common stair cannot meet different height requirements, detection tools are needed to be carried in manual detection, the common cross bar 13-type stair is not used for accommodating places where workers place tools, and the stair is extremely inconvenient. By adopting the assembled stair, the height is adjustable, the capacity of the pedals 12 is large, particularly the top layer is provided with the expandable top plate 5, so that tools are convenient to put, and in addition, the guard rail 4 can effectively ensure the safety of staff.
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present invention can be made by those skilled in the art without departing from the scope of the present invention.
Claims (6)
1. An assembled stair for bridge detection, characterized by, include ladder body (1), be used for give bracing piece (2), chassis (3) and the setting of ladder body (1) top rail guard (4) of holding power are provided to ladder body (1), wherein:
the bottom of the ladder body (1) is rotationally connected to the chassis (3);
the first end of the supporting rod (2) is erected on the chassis (3), and the position, close to the second end, of the supporting rod (2) is rotationally connected with the ladder body (1);
the two guard rails (4) are symmetrically arranged at the top of the ladder body (1) respectively, each guard rail (4) comprises a guard frame (41) and a handrail (42), the guard frame (41) is a right trapezoid, the right-angle waist of the right trapezoid is positioned at the upper part, the handrail (42) is fixedly connected to the joint of the right-angle waist and the longer bottom edge of the right trapezoid, and the handrail (42) is positioned on the extension line of the right-angle waist;
the ladder body (1) comprises two groups of square outer frames (11) and pedals (12) which are arranged in parallel;
at least two cross bars (13) are arranged on the square outer frame (11), the cross bars (13) are horizontally arranged, and the bottom of the square outer frame (11) is rotationally connected with the chassis (3);
the pedal (12) is at least two layers, and two opposite side edges of the pedal (12) are respectively and rotatably connected to the corresponding cross bars (13) on the two square outer frames (11);
the pedal structure further comprises an expandable top plate (5), wherein the length of the expandable top plate (5) is equal to the length of the pedal (12);
the first side of the expandable top plate (5) is rotationally connected with the top pedal (12), and the second side opposite to the first side is erected on the second end of the supporting rod (2).
2. The fabricated stairway for bridge inspection according to claim 1, wherein the square outer frame (11) comprises two sets of parallel connecting rods (111), one end of each connecting rod (111) is rotatably arranged on the chassis (3), and the other end is connected with the top-layer pedal (12);
the relation among the distance B1 between the connection point of the ladder body (1) and the supporting rod (2) to the first end of the supporting rod (2), the distance B2 between the connection point and the second end of the supporting rod (2), the distance A1 between the connection point of the ladder body (1) and the chassis (3) and the connection point, and the distance A2 between the connection point of the ladder body (1) and the pedal (12) at the top layer and the connection point is that:
A1:A2=B1:B2；
the chassis (3) is provided with a square groove (31), and the size ratio of the groove (31) to the square outer frame (11) is 1-1.1.
3. Fabricated stairway for bridge inspection according to claim 2, characterised in that the side walls of the groove (31) are provided with positioning means (32) for fixing the support bar (2).
4. A fabricated stairway for bridge inspection according to claim 3, characterised in that the positioning means (32) comprises fixed blocks (321) provided on the side walls of the groove (31), the fixed blocks (321) being provided with at least two.
5. The fabricated stairway for bridge inspection according to claim 4, wherein the fixing block (321) is provided with fine lines thereon.
6. Use of a fabricated stairway for bridge inspection according to any of claims 1-5, characterised in that the fabricated stairway is used for bridge health inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593366.8A CN107178306B (en) | 2017-07-20 | 2017-07-20 | Assembled stair for bridge detection and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593366.8A CN107178306B (en) | 2017-07-20 | 2017-07-20 | Assembled stair for bridge detection and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107178306A CN107178306A (en) | 2017-09-19 |
| CN107178306B true CN107178306B (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710593366.8A Active CN107178306B (en) | 2017-07-20 | 2017-07-20 | Assembled stair for bridge detection and application method thereof |
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| Country | Link |
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| CN (1) | CN107178306B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707122A (en) * | 2019-02-14 | 2019-05-03 | 安徽不凡建筑科技有限公司 | A kind of integral type assembling stair for integrated house |
| CN110485909A (en) * | 2019-08-26 | 2019-11-22 | 中原工学院 | Convenient storage ladder |
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|---|---|---|---|---|
| WO1995018286A1 (en) * | 1993-12-30 | 1995-07-06 | Lehmann Pierre Alain | Stepladder having foldable steps |
| JP2002054378A (en) * | 2000-08-08 | 2002-02-20 | Alinco Inc | Locking device for folding ladder |
| CN201486460U (en) * | 2009-08-03 | 2010-05-26 | 广州市新惠宝日用品有限公司 | Ladder and handcart combined device |
| CN101864890A (en) * | 2010-07-01 | 2010-10-20 | 天津市金锚集团有限责任公司 | Assembling structure of ladder landing and ladder thereof |
| CN103233675A (en) * | 2013-05-09 | 2013-08-07 | 苏州飞华铝制工业有限公司 | Ladder type working platform |
| CN103498635A (en) * | 2013-10-07 | 2014-01-08 | 孟昕然 | Climbing ladder |
| CN204024435U (en) * | 2014-06-30 | 2014-12-17 | 廖兴明 | A kind of portable electronic working stand |
| CN106741052A (en) * | 2016-12-09 | 2017-05-31 | 龙岩学院 | A kind of Multifunctional carrier |
| CN207144796U (en) * | 2017-07-20 | 2018-03-27 | 苏交科集团股份有限公司 | A kind of assembled stair for bridge machinery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9587434B2 (en) * | 2009-08-21 | 2017-03-07 | Rory Frick | Ladder |
-
2017
- 2017-07-20 CN CN201710593366.8A patent/CN107178306B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995018286A1 (en) * | 1993-12-30 | 1995-07-06 | Lehmann Pierre Alain | Stepladder having foldable steps |
| JP2002054378A (en) * | 2000-08-08 | 2002-02-20 | Alinco Inc | Locking device for folding ladder |
| CN201486460U (en) * | 2009-08-03 | 2010-05-26 | 广州市新惠宝日用品有限公司 | Ladder and handcart combined device |
| CN101864890A (en) * | 2010-07-01 | 2010-10-20 | 天津市金锚集团有限责任公司 | Assembling structure of ladder landing and ladder thereof |
| CN103233675A (en) * | 2013-05-09 | 2013-08-07 | 苏州飞华铝制工业有限公司 | Ladder type working platform |
| CN103498635A (en) * | 2013-10-07 | 2014-01-08 | 孟昕然 | Climbing ladder |
| CN204024435U (en) * | 2014-06-30 | 2014-12-17 | 廖兴明 | A kind of portable electronic working stand |
| CN106741052A (en) * | 2016-12-09 | 2017-05-31 | 龙岩学院 | A kind of Multifunctional carrier |
| CN207144796U (en) * | 2017-07-20 | 2018-03-27 | 苏交科集团股份有限公司 | A kind of assembled stair for bridge machinery |
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| CN107178306A (en) | 2017-09-19 |
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