CN102373878A - Steel pipe-cutting and riveting straight ladder - Google Patents
Steel pipe-cutting and riveting straight ladder Download PDFInfo
- Publication number
- CN102373878A CN102373878A CN2010102647959A CN201010264795A CN102373878A CN 102373878 A CN102373878 A CN 102373878A CN 2010102647959 A CN2010102647959 A CN 2010102647959A CN 201010264795 A CN201010264795 A CN 201010264795A CN 102373878 A CN102373878 A CN 102373878A
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- roller
- steel pipe
- column
- cuttage
- vertical ladder
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Abstract
The invention relates to a steel pipe-cutting and riveting straight ladder. Corresponding parts of two stand columns 1 are respectively provided with a riveting hole 4 in the shape of the outer edge of the end face of a treading roller 3, two ends of the treading roller 3 respectively penetrate through the riveting holes 4 from the inner sides of the stand columns 1, the ends of the treading roller 3 extend out of the stand columns 1, and flanges 5 are fixed on the ends of the treading roller 3. The stand columns 1 and the treading roller 3 are mounted and fixed by a mortise and tenon structure. The whole body is cold machined rather than welding, so that the straight ladder has high overall structure intensity, is firm, durable, safe, suitable for standardized industrial production and manufacture, concise and attractive in shape, free of weld joints, adapted to larger temperature change and higher-strength work requirement, convenient to install, use and transport, and suitable for popularization.
Description
Technical field:
The invention belongs to a kind of catladder, especially the cuttage fourth of the twelve Earthly Branches connects the steel pipe vertical ladder.
Background technology:
At present, vertical ladder has become the climbing aid of extensive use, such as vertical ladder fixing in the wind generator tower tube; The light aluminum vertical ladders of material that adopt are made with the cuttage anchoring more, such as; The lift of one Chinese patent application 200820124017.8 wind power generation stepped special uses, compared with prior art, this safe aluminum cat ladder adopts modularization manufacturing and Installation Modes; The each several part of ladder is fixedly connected through dismountable connector, multistage, segmentation installation that the column of ladder adopts, and it is fixing to adopt interface junction plate or socket connection piece to connect between its each section; Crossbeam is fixed on the corresponding column through the distortion plug-in, but because aluminium hardness is low slightly, the low temperature tolerance is lower; Phenomenons such as fracture can appear in embrittlement when temperature was low in the winter time, had hidden danger; In addition, as the vertical ladder of selecting for use the higher steel of intensity to process, generally need to adopt welding manufacturing; Requiring under the rigors such as the big temperature difference of open-air tolerance, high and low temperature, long-term safety is used, under the stable performance condition; Because welding is prone to cause the material structure Strength Changes, also have big potential safety hazard, and since physical property such as hardness and aluminium extruded sections differ greatly; Take the tenon structure of aluminum vertical ladder also to have many difficulties, therefore, it is open still not have correlation technique.
Summary of the invention:
Objects of the present invention are to propose a kind of steel tenon structure vertical ladder, and promptly the cuttage fourth of the twelve Earthly Branches connects the steel pipe vertical ladder.
The measure that realizes objects of the present invention is: two column correspondence positions are opened mortise to step on roller end face outer rim shape, step on the roller two ends and cross mortise from the inboard cuttage of column respectively, and the column outside is stretched out in the end, and fixing flange.
The invention has the advantages that: to adopt tenon structures to install fastening with stepping on roller 3 for column 1, because integral body does not adopt welding, and carries out cold working; Not only high, solid, durable, the safety of overall construction intensity is suitable for the manufacturing of standardization commercial production, and; Profile is succinctly attractive in appearance, and no weld seam can adapt to big variations in temperature; With than the hard intensity job requirement, be convenient to install, use and transport, the suitable popularization.
Description of drawings:
Fig. 1 is the structural representation of the embodiment of the invention 1
Fig. 2 is the syndeton sketch map of the embodiment of the invention 1
Fig. 3 is the syndeton sketch map of the embodiment of the invention 2
Reference numeral comprises: column 1, and card key 2 is stepped on roller 3, mortise 4, flange 5, mouth 6 rises.
The specific embodiment:
1: two column 1 correspondence position of embodiment is opened mortise 4 to step on roller 3 end face outer rim shapes, steps on roller 3 two ends and crosses mortise 4 from column 1 inboard cuttage respectively, and column 1 outside is stretched out in the end, and fixing flange 5.
Two 1 on columns are installed a plurality of rollers 3 of stepping on and are formed vertical ladder.Column 1 with step on roller 3 and be the square tube type, its central post 1 be flat square tube, stepping on roller 3 is positive square tube, mortise 4 is opened at column 1 broad side.Flat side's column 1 palm grip of being more convenient for.Perhaps, column 1 with step on roller 3 and be tubular type.Column 1 with step on roller 3 outer walls the decorative pattern projection arranged.These decorative pattern projections effectively increase grasping or enough frictional force are provided when foot-operated.
Step on connecting portion fixed card key 2 on the roller 3 in column 1 inboard.Card key 2 is 1-4.
Present embodiment during fabrication, mortise 4 is opened in punching press on the column 1, steps on roller 3 outer walls and goes out card key 2, will step on after roller 3 end cuttages go into mortise 4, card key 2 is stuck on column 1 inboard mortise 4 outers, steps on the part that roller 3 ends pass mortise 4, carries out anchoring.
In the present embodiment, to adopt tenon structures to install fastening with stepping on roller 3 for column 1, because integral body does not adopt welding, and carries out cold working; Not only high, solid, durable, the safety of overall construction intensity is suitable for the manufacturing of standardization commercial production, and; Profile is succinctly attractive in appearance, and no weld seam can adapt to big variations in temperature; With than the hard intensity job requirement, be convenient to install, use and transport, the suitable popularization.
Embodiment 2: step on the part of roller 3 in column 1 and form the mouth 6 that rises, mouthful 6 outer rims that rise are greater than mortise 4.The mouth 6 that rises makes that stepping on roller 3 end cuttages goes into mortise 4 backs and column 1 positioning and fixing.During fabrication, will step on earlier after roller 3 end cuttages go into mortise 4, mouthful 6 intramedullary expansions distortion is fastening from rising.
Claims (9)
1. the cuttage fourth of the twelve Earthly Branches connects the steel pipe vertical ladder, it is characterized in that, two columns (1) correspondence position is opened mortise (4) to step on roller (3) end face outer rim shape, steps on roller (3) two ends and crosses mortise (4) from the inboard cuttage of column (1) respectively, and column (1) outside is stretched out in the end, and fixing flange (5).
2. the cuttage as claimed in claim 1 fourth of the twelve Earthly Branches connects the steel pipe vertical ladder, it is characterized in that, and column (1) and step on roller (3) and be the square tube type, its central post (1) is flat square tube, steps on roller (3) and is positive square tube, mortise (4) is opened at column (1) broad side.
3. the cuttage as claimed in claim 1 fourth of the twelve Earthly Branches connects the steel pipe vertical ladder, it is characterized in that column (1) and step on roller (3) and be tubular type.
4. the cuttage as claimed in claim 1 fourth of the twelve Earthly Branches connects the steel pipe vertical ladder, it is characterized in that column (1) and step on roller (3) outer wall the decorative pattern projection is arranged.
5. the cuttage as claimed in claim 1 fourth of the twelve Earthly Branches connects the steel pipe vertical ladder, it is characterized in that, steps on roller (3) in column (1) inboard and goes up connecting portion fixed card key (2).
6. the cuttage as claimed in claim 5 fourth of the twelve Earthly Branches connects the steel pipe vertical ladder, it is characterized in that, card key (2) is 1-4.
7. the cuttage as claimed in claim 5 fourth of the twelve Earthly Branches connects the steel pipe vertical ladder, it is characterized in that, card key (2) is and steps on the projection that roller (3) outer wall is connected as a single entity.
8. the cuttage as claimed in claim 5 fourth of the twelve Earthly Branches connects the steel pipe vertical ladder, it is characterized in that, the card key (2) for can with step on the pin that roller (3) outer wall separates.
9. the cuttage as claimed in claim 1 fourth of the twelve Earthly Branches connects the steel pipe vertical ladder, it is characterized in that, steps on the part of roller (3) in column (1) and forms rise mouthful (6), and mouthful (6) outer rim that rises is greater than mortise (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102647959A CN102373878A (en) | 2010-08-27 | 2010-08-27 | Steel pipe-cutting and riveting straight ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102647959A CN102373878A (en) | 2010-08-27 | 2010-08-27 | Steel pipe-cutting and riveting straight ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102373878A true CN102373878A (en) | 2012-03-14 |
Family
ID=45793044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102647959A Pending CN102373878A (en) | 2010-08-27 | 2010-08-27 | Steel pipe-cutting and riveting straight ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102373878A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19831524A1 (en) * | 1998-07-14 | 2000-01-27 | Frank Rombey | Adjustable height ladder has four rails with movably located runs which can be set against wall and immediately accessed |
| US6032759A (en) * | 1998-08-03 | 2000-03-07 | Dofair Company, Ltd | Ladder with anti-deformed side rails |
| EP1061230B1 (en) * | 1999-06-16 | 2005-08-17 | Société Anonyme dite Tubesca | Metal ladder for scaffolding with crimped connection between rungs and stile |
| CN201155298Y (en) * | 2007-12-27 | 2008-11-26 | 天津市金锚集团有限责任公司 | Fixing and mounting structure of rungs and frame |
| CN201460705U (en) * | 2009-09-01 | 2010-05-12 | 天津市金锚集团有限责任公司 | Combined structure of stair and ladder frame |
-
2010
- 2010-08-27 CN CN2010102647959A patent/CN102373878A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19831524A1 (en) * | 1998-07-14 | 2000-01-27 | Frank Rombey | Adjustable height ladder has four rails with movably located runs which can be set against wall and immediately accessed |
| US6032759A (en) * | 1998-08-03 | 2000-03-07 | Dofair Company, Ltd | Ladder with anti-deformed side rails |
| EP1061230B1 (en) * | 1999-06-16 | 2005-08-17 | Société Anonyme dite Tubesca | Metal ladder for scaffolding with crimped connection between rungs and stile |
| CN201155298Y (en) * | 2007-12-27 | 2008-11-26 | 天津市金锚集团有限责任公司 | Fixing and mounting structure of rungs and frame |
| CN201460705U (en) * | 2009-09-01 | 2010-05-12 | 天津市金锚集团有限责任公司 | Combined structure of stair and ladder frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120314 |
|
| WD01 | Invention patent application deemed withdrawn after publication |