CN104775747A - Folding ladder - Google Patents
Folding ladder Download PDFInfo
- Publication number
- CN104775747A CN104775747A CN201510168931.7A CN201510168931A CN104775747A CN 104775747 A CN104775747 A CN 104775747A CN 201510168931 A CN201510168931 A CN 201510168931A CN 104775747 A CN104775747 A CN 104775747A
- Authority
- CN
- China
- Prior art keywords
- column
- foot
- operated
- pedal
- hinge hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- 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
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/081—Rungs or other treads comprising anti-slip features
-
- 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
- E06C7/46—Non-skid equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention provides a folding ladder which comprises a first stand pillar, a second stand pillar, at least two pedal beams and positioning pins, wherein the first stand pillar and the second stand pillar are vertically arranged, and the cross sections of the first stand pillar and the second stand pillar are respectively in a C shape; the pedal beams are arranged in a polygonal line mode, each pedal beam comprises a first pedal and a second pedal which are mutually parallelly arranged at the two ends of the pedal beam, each first pedal is arranged at a lower position, each second pedal is arranged at a higher position, and an oblique connecting part is arranged between each first pedal and the corresponding second pedal by connecting; the end part of each first pedal is hinged with a stand pillar hinged hole of the first stand pillar by a pedal hinged hole; the end part of each second pedal is hinged with a stand pillar hinged hole of the second stand pillar by a pedal hinged hole; one positioning pin is arranged below each stand pillar hinged hole of the first stand pillar; and one positioning pin is arranged above each stand pillar hinged hole of the second stand pillar. The folding ladder disclosed by the invention can be folded for storage; and each pedal beam is designed in a two-pedal mode, thereby greatly saving raw materials.
Description
Technical field
The present invention relates to cat ladder field, be specifically related to a kind of folded ladder.
Background technology
Cat ladder is widely used in all trades and professions, and operating personnel can be helped to climb high-rise working from lower.Have a kind of ladder needing to tilt to lean on metope use, structure is simple, but himself cannot fold, and thus needs larger parking space.And every grade, ladder all adopts a straight foot-operated crossbeam, the gear number that crossbeam ridden by highly higher ladder is more, and so the consumptive material of ladder entirety is more, causes cost and raw-material waste.
Being not difficult to find out, also there is certain defect in prior art.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of folded ladder, collapsible to deposit, and foot-operated crossbeam have employed the design of bi-pedal, significantly saves raw material.
For achieving the above object, the present invention is by the following technical solutions:
A kind of folded ladder, comprises the first column, the second column, at least two grades of foot-operated crossbeams and alignment pin; First column and the second column are vertically arranged, the cross section of the first column and the second column is c-shaped, on first column and the second column, all vertically equidistant arrangement is provided with column hinge hole, and column hinge hole on the first column and the second column mutually height shift to install, the hinge hole of the first column is located at low level, and the hinge hole of the second column is located at a high position; Foot-operated crossbeam is that broken line is arranged, every bar is ridden crossbeam and is comprised the first foot-operated and second to ride of the two ends being located at foot-operated crossbeam that are parallel to each other, and first foot-operated is located at low level, second foot-operated is located at a high position, first foot-operated and second foot-operated between be connected with the connecting portion be obliquely installed, the two ends of foot-operated crossbeam are provided with foot-operated hinge hole; First end ridden is hinged by the column hinge hole of foot-operated hinge hole and the first column; Second end ridden is hinged by the column hinge hole of foot-operated hinge hole and the second column; Foot-operated crossbeam is embedded within the first column and the second column; Be provided with an alignment pin below each column hinge hole of the first column, the first foot-operated rotation offsets to the first bottom surface ridden and alignment pin during horizontal position; Be provided with an alignment pin above each column hinge hole of the second column, the second foot-operated rotation offsets to the second end face ridden and alignment pin during horizontal position.
Further, the bottom of described first column and the second column is provided with skid-proof rubber.
Further, also comprise at least one for folding fixing tightening device, the middle part of the first column or the second column is located at by tightening device.
A kind of folded ladder provided by the present invention, has the following advantages:
Can stored collapsed, save parking space, carrying of being more convenient for is mobile, is particularly useful for the occasion needing frequent ladder movement;
Every bar rides the design that crossbeam have employed bi-pedal, saves the gear number of foot-operated crossbeam, has saved consumptive material;
Structure is simple, and stability is strong, light portable.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The overall structure schematic diagram of a kind of folded ladder that Fig. 1 provides for the present embodiment.
Fig. 2 is the folded state schematic diagram of folded ladder.
Description of reference numerals:
1, the first column 2, second column
3, foot-operated crossbeam 4, first is ridden
5, the second foot-operated 6, connecting portion
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the embodiment of the present invention and accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.It should be noted that, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment
Refer to Fig. 1 and Fig. 2, the invention provides a kind of folded ladder, comprise the first column 1, second column 2, at least two grades of foot-operated crossbeams 3 and alignment pin; First column 1 and the second column 2 are vertically arranged, the cross section of the first column 1 and the second column 2 is c-shaped, on first column 1 and the second column 2, all vertically equidistant arrangement is provided with column hinge hole, and column hinge hole on the first column 1 and the second column 2 mutually height shift to install, the hinge hole of the first column 1 is located at low level, and the hinge hole of the second column 2 is located at a high position; Foot-operated crossbeam 3 is arranged in broken line, every bar ride that crossbeam 3 comprises the two ends being located at foot-operated crossbeam 3 that are parallel to each other first foot-operated 4 and second foot-operated 5, and first foot-operated 4 is located at low level, second foot-operated 5 is located at a high position, be connected with the connecting portion 6 be obliquely installed between first foot-operated 4 and second foot-operated 5, the two ends of foot-operated crossbeam 3 are provided with foot-operated hinge hole; The end of first foot-operated 4 is hinged by the column hinge hole of foot-operated hinge hole and the first column 1; The end of second foot-operated 5 is hinged by the column hinge hole of foot-operated hinge hole and the second column 2; Foot-operated crossbeam 3 is embedded within the first column 1 and the second column 2; Be provided with an alignment pin below each column hinge hole of the first column 1, first foot-operated 4 rotate to during horizontal position first foot-operated 4 bottom surface and alignment pin offset; Be provided with an alignment pin above each column hinge hole of the second column 2, second foot-operated 5 rotate to during horizontal position second foot-operated 5 end face and alignment pin offset.
The present invention is different from general ladder, and it makes use of the hinged characteristic of four bars can fold.General ladder is not folding, and the space needed when depositing is comparatively large, is also unfavorable for transport.Some occasion needs often to carry ladder, such as municipal engineering operation, and operating location changes often, and thus the carrying of ladder is very frequent.It is extremely inconvenience that operating personnel shoulders ladder movement between each operating location with hand.The present invention then can move in carrying or fold when depositing, when first column 1 and the second column 2 are fit together, namely foot-operated crossbeam 3 is concealed in the inside of the first column 1 and the second column 2, whole ladder is made to become a long rod, be convenient to carrying mobile, operating personnel only needs a hand just can hold the ladder after folding.
The present invention also has an important improvement to be exactly the structure that foot-operated crossbeam 3 have employed bi-pedal.The foot-operated crossbeam 3 of general ladder is all straight crossbeam, and every grade foot-operated is exactly a foot-operated crossbeam 3, and consumptive material is comparatively serious.And in the process of climbing, the situation that in fact two pin are trampled on one grade of foot-operated crossbeam 3 is little simultaneously.In view of this, foot-operated crossbeam 3 of the present invention is broken-line types, comprises height two grades and rides, and user first sets foot on when climbing and is in first foot-operated 4 of low level, then sets foot on and be in high-order second foot-operated 5.As needs continue upwards to climb, can continue set foot on one grade of foot-operated crossbeam 3 first foot-operated 4, repeating this action can constantly upwards climb.Ride because one grade of foot-operated crossbeam 3 includes two grades, foot-operated crossbeam 3 gear number of reality of the present invention decreases half relative to the gear number of the foot-operated crossbeam 3 of straight formula, significantly decreases consumptive material, has saved material resources and product cost, and make product lighter.
The hinged stability of four bars is more weak, stability when using is launched in order to ensure ladder, the below of the first column 1 each column hinge hole and the top of each column hinge hole of the second column 2 are equipped with alignment pin, when ladder launches, first foot-operated 4 and second foot-operated 5 of foot-operated crossbeam 3 is in horizontal position, the bottom surface of first foot-operated 4 and the end face of second foot-operated 5 all offset with alignment pin, position thus.
It should be noted that, the material of ladder is in the claims and for limiting.The material of ladder should be selected according to actual conditions, can adopt light solid material.As further preferably, the insulation materials such as highstrenghtpiston, solid wood also can be adopted to ensure some operational securities relevant to power engineering.
As preferably, the bottom of described first column 1 and the second column 2 is provided with skid-proof rubber.Skid-proof rubber more effectively prevents the bottom of ladder from skidding, thus ensures the safety that ladder uses.
As preferably, folded ladder of the present invention also comprises at least one for folding fixing tightening device, and the middle part of the first column 1 or the second column 2 is located at by tightening device.Tightening device when ladder collapses is received by the first column 1 and the second column 2 fastening, can be fixed to receive.The form of tightening device is varied, can be belt, rope, and also can be the buckling clamping part of rigidity, the effect of fastening is actual be the same, and therefore not to repeat here.
A kind of folded ladder provided by the invention, can stored collapsed, saves parking space, and carrying of being more convenient for is mobile, is particularly useful for the occasion needing frequent ladder movement.Every bar rides the design that crossbeam 3 have employed bi-pedal, saves the gear number of foot-operated crossbeam 3, has saved consumptive material.And the structure of product is simple, stability is strong, light portable.
The above embodiment only have expressed one embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (3)
1. a folded ladder, is characterized in that: comprise the first column, the second column, at least two grades of foot-operated crossbeams and alignment pin; First column and the second column are vertically arranged, the cross section of the first column and the second column is c-shaped, on first column and the second column, all vertically equidistant arrangement is provided with column hinge hole, and column hinge hole on the first column and the second column mutually height shift to install, the hinge hole of the first column is located at low level, and the hinge hole of the second column is located at a high position; Foot-operated crossbeam is that broken line is arranged, every bar is ridden crossbeam and is comprised the first foot-operated and second to ride of the two ends being located at foot-operated crossbeam that are parallel to each other, and first foot-operated is located at low level, second foot-operated is located at a high position, first foot-operated and second foot-operated between be connected with the connecting portion be obliquely installed, the two ends of foot-operated crossbeam are provided with foot-operated hinge hole; First end ridden is hinged by the column hinge hole of foot-operated hinge hole and the first column; Second end ridden is hinged by the column hinge hole of foot-operated hinge hole and the second column; Foot-operated crossbeam is embedded within the first column and the second column; Be provided with an alignment pin below each column hinge hole of the first column, the first foot-operated rotation offsets to the first bottom surface ridden and alignment pin during horizontal position; Be provided with an alignment pin above each column hinge hole of the second column, the second foot-operated rotation offsets to the second end face ridden and alignment pin during horizontal position.
2. folded ladder according to claim 1, is characterized in that: the bottom of described first column and the second column is provided with skid-proof rubber.
3. folded ladder according to claim 1, is characterized in that: also comprise at least one for folding fixing tightening device, the middle part of the first column or the second column is located at by tightening device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510168931.7A CN104775747A (en) | 2015-04-06 | 2015-04-06 | Folding ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510168931.7A CN104775747A (en) | 2015-04-06 | 2015-04-06 | Folding ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104775747A true CN104775747A (en) | 2015-07-15 |
Family
ID=53617472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510168931.7A Pending CN104775747A (en) | 2015-04-06 | 2015-04-06 | Folding ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104775747A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2602202A1 (en) * | 1976-01-22 | 1977-07-28 | Orenstein & Koppel Ag | Reduced slip industrial ladder - has rung ends curved upwards to prevent climber from slipping due to badly positioned angle |
| KR20020074359A (en) * | 2001-03-20 | 2002-09-30 | 이광용 | Ladder |
| CN201531214U (en) * | 2009-10-29 | 2010-07-21 | 陶园 | Longitudinal folding ladder |
| CN201723144U (en) * | 2010-07-23 | 2011-01-26 | 许昌义 | Folding hidden ladder |
| CN203050478U (en) * | 2013-01-06 | 2013-07-10 | 刘祥瑞 | Rapid folding ladder |
| CN204532022U (en) * | 2015-04-06 | 2015-08-05 | 陈超 | A kind of folded ladder |
-
2015
- 2015-04-06 CN CN201510168931.7A patent/CN104775747A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2602202A1 (en) * | 1976-01-22 | 1977-07-28 | Orenstein & Koppel Ag | Reduced slip industrial ladder - has rung ends curved upwards to prevent climber from slipping due to badly positioned angle |
| KR20020074359A (en) * | 2001-03-20 | 2002-09-30 | 이광용 | Ladder |
| CN201531214U (en) * | 2009-10-29 | 2010-07-21 | 陶园 | Longitudinal folding ladder |
| CN201723144U (en) * | 2010-07-23 | 2011-01-26 | 许昌义 | Folding hidden ladder |
| CN203050478U (en) * | 2013-01-06 | 2013-07-10 | 刘祥瑞 | Rapid folding ladder |
| CN204532022U (en) * | 2015-04-06 | 2015-08-05 | 陈超 | A kind of folded ladder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150715 |