CN105035326A - Pedal angle adjustable-type ladder - Google Patents
Pedal angle adjustable-type ladder Download PDFInfo
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- CN105035326A CN105035326A CN201510345411.9A CN201510345411A CN105035326A CN 105035326 A CN105035326 A CN 105035326A CN 201510345411 A CN201510345411 A CN 201510345411A CN 105035326 A CN105035326 A CN 105035326A
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- pedal
- connecting rod
- side bar
- bearing pin
- ladder
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Abstract
The invention provides a pedal angle adjustable-type ladder, and relates to the field of airplane structure design. The pedal angle adjustable-type ladder comprises two boundary beams and pedals; the pedals are arranged between the two boundary beams at equal spacing, and the ends, near the same long side, of two broad sides of each pedal are fixed to the boundary beams through boundary beam and pedal hinge pins; the other ends of the two broad sides of each of the pedals in a parallel state are respectively connected by connecting rods and pedal connecting hinge pins; regulating connecting rod fixing holes are formed in the boundary beams and near the top ends of the boundary beams; regulating connecting rods respectively penetrate through the regulating connecting rod fixing holes, and one end of each of the regulating connecting rod and the corresponding connecting rod are fixedly connected with the pedal at the top end of the ladder by adopting the same pedal connecting hinge pin. The pedal angle adjustable-type ladder provided by the invention is simple and reasonable in structure; by arranging the connecting rods and the regulating connecting rods, the angles of the pedals relative to the boundary beams can be adjusted, so that personnel can conveniently climb up and down the ladder; the pedal angle adjustable-type ladder is convenient to disassemble, high in stability, safe and reliable.
Description
Technical field
The present invention relates to technical field of aircraft structure design, in particular to the adjustable ladder of a kind of pedal angle.
Background technology
Aircraft two layers of rear floor hang with two ladders, and one end hangs over behind floor on side bar, and the other end both may be supported on cargo deck by roller, also may be supported on sloping platform.Sloping platform self has to be received upper and puts down two states, and namely this ladder at least must adapt to oblique three kinds of states on floor level, sloping platform declivity and sloping platform.There is side bar ladder both sides, and multiple pedal is connected on side bar by being spirally connected or welding, tread width 175mm.Ladder that horizontal floor is designed is ridden on sloping platform is received or after putting down according to ladder one end, pedal can deflect 28 degree or 31 degree (with the angle of formation plane) downward or upward, now personnel are inconvenient up and down, and this using state is identical with existing aircraft.In Typical loading process, generally believe that this ladder uses inconvenience, the personnel that are not easy to are upper and lower.For the ladder having military use, the step degree of depth (tread width) has requirement, and when lifting angle is 50 degree, the step degree of depth is not less than 150, and the pedal of ladder and the side bar supporting it are all generally by be spirally connected or together with being welded and fixed.It is most convenient that the lifting angle of ladder uses when certain value, and when lifting angle changes, pedal plane, also along with change, no longer keeps horizontality, and personnel are inconvenient up and down.The problem needing now solution badly how to design a kind of ladder, and the pedal of ladder can be changed with the change of the lifting angle of ladder, keeps horizontality, facilitate personnel upper and lower.
Summary of the invention
The object of the invention is to solve above-mentioned deficiency of the prior art, provide a kind of simple and reasonable, device stability is high, pedal and side bar angulation is adjustable, keep the adjustable ladder of the pedal angle of level always.
Object of the present invention is achieved through the following technical solutions: the adjustable ladder of a kind of pedal angle, comprise side bar, pedal, pedal spaced set is between two side bars and by side bar pedal bearing pin, two broadsides of pedal are closed on same long limit end and be fixed on side bar, also comprise connecting rod, regulating connecting rod, wherein, the other end of two broadsides of the described pedal under parastate passes through to connect pedal pinned connection by connecting rod respectively, on side bar, side bar top end is provided with regulating connecting rod fixed orifice, regulating connecting rod is through regulating connecting rod fixed orifice and one end of regulating connecting rod and connecting rod are adopted and be samely connected the described pedal that pedal bearing pin is fixedly connected with ladder top.
, equidistantly on regulating connecting rod being provided with spacing hole in such scheme preferably, regulating the angle of described pedal and described side bar by regulating on described regulating connecting rod with the spacing hole of described side bar pinned connection.
In above-mentioned either a program preferably, side bar pedal bearing pin is dicyclo groove bearing pin, the thickness of the distance between bearing pin baffle head with first order annular groove and described side bar is identical, and the frame thickness of the distance between first order annular groove with second stage annular groove and described pedal is identical, is provided with back-up ring in annular groove; Connecting pedal bearing pin is dicyclo groove bearing pin, and the distance between bearing pin baffle head with first order annular groove is identical with the thickness of connecting rod, and first order annular groove is identical with the frame thickness of the distance between the annular groove of the second stage and described pedal, is provided with back-up ring in annular groove.
In above-mentioned either a program preferably, the pedal coupling end of connecting rod and ladder top end is ears structure, and described regulating connecting rod and described connecting rod fit through the described pedal bearing pin that is connected and be connected on pedal.
In above-mentioned either a program preferably, regulating connecting rod is fixed on side bar through the spacing hole on side bar and regulating connecting rod by Quick-release pin by regulating connecting rod.
In above-mentioned either a program preferably, the quantity of the spacing hole on regulating connecting rod sets according to the degree of regulation of angle between pedal and side bar.
The beneficial effect of the adjustable ladder of pedal angle provided by the present invention is, structure is simple, easy to operate, the angle between pedal and side bar is regulated by the combined action of regulating connecting rod and connecting rod, when ladder lifting angle is changed, pedal and side bar angulation also change, and make pedal be in horizontality, facilitate that personnel's is upper and lower, convenient disassembly, device stability are high, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiment according to the adjustable ladder of pedal angle of the present invention;
Fig. 2 is the local structure schematic diagram embodiment illustrated in fig. 1 according to the adjustable ladder of pedal angle of the present invention;
Fig. 3 is the regulating connecting rod structural representation embodiment illustrated in fig. 1 according to the adjustable ladder of pedal angle of the present invention;
Fig. 4 is the structural representation of the connection pedal bearing pin embodiment illustrated in fig. 1 according to the adjustable ladder of pedal angle of the present invention;
Fig. 5 is connecting rod embodiment illustrated in fig. 1 according to the adjustable ladder of pedal angle of the present invention and pedal connection diagram.
Reference numeral:
1-side bar, 2-pedal, 3-connecting rod, 4-regulating connecting rod, 5-connect pedal bearing pin, 6-side bar pedal bearing pin, 7-back-up ring a, 8-back-up ring b, 9-back-up ring c, 10-back-up ring d, 11-Quick-release pin, 101-regulating connecting rod fixed orifice.
Detailed description of the invention
In order to understand according to the adjustable ladder of the pedal angle of the present invention program better, be further elaborated explanation below in conjunction with the preferred embodiment of accompanying drawing to the adjustable ladder of pedal angle of the present invention.
Embodiment 1:
As shown in figures 1 to 6, the adjustable ladder of pedal angle provided by the present invention, comprise side bar 1, pedal 2, pedal 2 spaced set is between two side bars 1 and be fixed on side bar 1 on by two broadsides of pedal 2 near same long limit end by side bar pedal bearing pin 6, also comprise connecting rod 3, regulating connecting rod 4, wherein, the other end of two broadsides of the pedal 2 under parastate connects by connecting pedal bearing pin 5 by connecting rod 3 respectively, on side bar 1, side bar 1 top end is provided with regulating connecting rod fixed orifice 101, regulating connecting rod 4 is through regulating connecting rod fixed orifice 101 and one end of regulating connecting rod 4 and connecting rod 3 are adopted and be samely connected the pedal 2 that pedal bearing pin 5 is fixedly connected with ladder top.Equidistantly on regulating connecting rod 4 be provided with spacing hole, by regulating the angle described regulating connecting rod 4 regulating pedal 2 and side bar 1 with the spacing hole of side bar 1 pinned connection.
Side bar pedal bearing pin 6 is dicyclo groove bearing pin, and the thickness of the distance between bearing pin baffle head with first order annular groove and side bar 1 is identical, and the frame thickness of the distance between first order annular groove with second stage annular groove and pedal 2 is identical, is provided with back-up ring in annular groove; Connecting pedal bearing pin 5 is dicyclo groove bearing pin, and the thickness of the distance between bearing pin baffle head with first order annular groove and connecting rod 3 is identical, and the frame thickness of the distance between first order annular groove with second stage annular groove and pedal 2 is identical, is provided with back-up ring in annular groove.
Connecting rod 3 is ears structure with pedal 2 coupling end of ladder top end, and described regulating connecting rod 4 and connecting rod 3 fit through and be connected pedal bearing pin 5 and be connected on pedal 2.Regulating connecting rod 4 is fixed on side bar 1 through the spacing hole on described side bar 1 and regulating connecting rod 4 by Quick-release pin 11 by regulating connecting rod 4.The quantity of the spacing hole on regulating connecting rod 4 sets according to the degree of regulation of angle between pedal 2 and side bar 1.
In concrete use procedure, as Fig. 2, Fig. 3, equidistantly on regulating connecting rod 4 be provided with four spacing holes, regulating connecting rod 4 is through the regulating connecting rod fixed orifice 101 that side bar 1 is arranged, the spacing hole of regulating connecting rod 4 one end is also fixedly connected on the pedal 2 on ladder top by being connected pedal bearing pin 5 with the ears respective outer side edges of connecting rod 3 end, regulating connecting rod 4, through one in all the other spacing holes on side bar 1 and regulating connecting rod 4, is fixedly connected with side bar 1 by Quick-release pin 11.Spacing hole on the regulating connecting rod 4 be fixedly connected with side bar 1 bearing pin by change, Quick-release pin 11 can be changed and be connected distance between pedal bearing pin with ladder top, thus the angle residing for plane residing for ladder top pedal 2 and two side bars 1 between plane can be regulated.
The side bar pedal bearing pin 6 of the adjustable ladder of the pedal angle that the present embodiment provides is identical with connection pedal bearing pin 5 structure, is dicyclo fluted shaft pin.As shown in Fig. 4, Fig. 5, Fig. 6, side bar pedal bearing pin 6 is dicyclo groove bearing pin, the thickness of the distance between bearing pin baffle head with first order annular groove and described side bar 1 is identical, the frame thickness of the distance between first order annular groove with second stage annular groove and described pedal 2 is identical, be provided with back-up ring a7 in first order annular groove, in the annular groove of the second stage, be provided with back-up ring b8; Connecting pedal bearing pin 5 is dicyclo groove bearing pin, the thickness of the distance between bearing pin baffle head with first order annular groove and connecting rod 3 is identical, the frame thickness of the distance between first order annular groove with second stage annular groove and described pedal 2 is identical, be provided with back-up ring c9 in first order annular groove, in the annular groove of the second stage, be provided with back-up ring d10.Side bar pedal bearing pin 6, connect pedal bearing pin 5 arranges back-up ring be in order to prevent pedal 2 come off with prevent side bar pedal bearing pin 6, is connected pedal bearing pin 5 from side bar 1 or connecting rod 3 come off, the stability of increase device.
Pedal 2 on ladder connects by two connecting rods 3, regulates the angle between pedal 2 and side bar by the spacing hole on adjustment Quick-release pin 11 lock adjustment connecting rod 4.Distance between connection pedal bearing pin 5 on Quick-release pin 11 and ladder top pedal 2 is less, and the angle between pedal 2 and side bar 1 is less; Distance between connection pedal bearing pin 5 on Quick-release pin 11 and ladder top pedal 2 is larger, and the angle between pedal 2 and side bar 1 is larger.The pedal 2 on whole ladder is driven to move around side bar pedal pivot pin by connecting rod 3.
Embodiment 2:
The adjustable ladder of pedal angle as described in above-described embodiment 1, difference is that the quantity in regulating connecting rod 4 upper limit hole is 5 with it.
More than be described in detail in conjunction with the adjustable ladder specific embodiment of pedal angle of the present invention, but be not limitation of the present invention, everyly according to technical spirit of the present invention, technical scope of the present invention is all belonged to any simple modification made for any of the above embodiments, also it should be noted that, comprise the combination in any between each part mentioned above according to the category of the adjustable ladder technical scheme of pedal angle of the present invention.
Claims (6)
1. the adjustable ladder of pedal angle, comprise side bar (1), pedal (2), the close same long limit end of two broadsides of described pedal (2) is also fixed on described side bar (1) by side bar pedal bearing pin (6) by described pedal (2) spaced set between side bar described in two (1), it is characterized in that: also comprise connecting rod (3), regulating connecting rod (4), wherein, the other end of two broadsides of the described pedal (2) under parastate connects by connecting pedal bearing pin (5) by connecting rod (3) respectively, on described side bar (1), described side bar (1) top end is provided with regulating connecting rod fixed orifice (101), regulating connecting rod (4) adopts through regulating connecting rod fixed orifice (101) and by one end of regulating connecting rod (4) and connecting rod (3) and is samely connected the described pedal (2) that pedal bearing pin (5) is fixedly connected with ladder top.
2. the adjustable ladder of pedal angle as claimed in claim 1, it is characterized in that: described regulating connecting rod (4) is above equidistant is provided with spacing hole, by the angle regulating described regulating connecting rod (4) spacing hole that is upper and described side bar (1) pinned connection to regulate described pedal (2) and described side bar (1).
3. the adjustable ladder of pedal angle as claimed in claim 1, it is characterized in that: described side bar pedal bearing pin (6) is dicyclo groove bearing pin, the thickness of the distance between bearing pin baffle head with first order annular groove and described side bar (1) is identical, the frame thickness of the distance between first order annular groove with second stage annular groove and described pedal (2) is identical, is provided with back-up ring in annular groove; Connecting pedal bearing pin (5) is dicyclo groove bearing pin, the thickness of the distance between bearing pin baffle head with first order annular groove and connecting rod (3) is identical, the frame thickness of the distance between first order annular groove with second stage annular groove and described pedal (2) is identical, is provided with back-up ring in annular groove.
4. the adjustable ladder of pedal angle as claimed in claim 1, it is characterized in that: described connecting rod (3) is ears structure with described pedal (2) coupling end of ladder top end, and described regulating connecting rod (4) and described connecting rod (3) fit through the described pedal bearing pin (5) that is connected and be connected on described pedal (2).
5. the adjustable ladder of pedal angle as claimed in claim 4, is characterized in that: described regulating connecting rod (4) is fixed on described side bar (1) through the spacing hole on described side bar (1) and described regulating connecting rod (4) by Quick-release pin (11) by described regulating connecting rod (4).
6. the adjustable ladder of pedal angle as claimed in claim 5, is characterized in that: the quantity of the spacing hole on described regulating connecting rod (4) sets according to the degree of regulation of angle between described pedal (2) and described side bar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345411.9A CN105035326A (en) | 2015-06-19 | 2015-06-19 | Pedal angle adjustable-type ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345411.9A CN105035326A (en) | 2015-06-19 | 2015-06-19 | Pedal angle adjustable-type ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105035326A true CN105035326A (en) | 2015-11-11 |
Family
ID=54442426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510345411.9A Pending CN105035326A (en) | 2015-06-19 | 2015-06-19 | Pedal angle adjustable-type ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105035326A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035129A (en) * | 2017-04-21 | 2017-08-11 | 五冶集团上海有限公司 | Adjustable stepping system |
| CN107697241A (en) * | 2017-11-03 | 2018-02-16 | 中船黄埔文冲船舶有限公司 | A kind of body section scaffold and its building method |
| CN108330984A (en) * | 2018-01-30 | 2018-07-27 | 中国华冶科工集团有限公司 | The adjustable assembly type cat ladder of pedal angle |
| CN109538108A (en) * | 2019-01-04 | 2019-03-29 | 汪志勇 | A kind of adjustable ladder of pedal angle |
-
2015
- 2015-06-19 CN CN201510345411.9A patent/CN105035326A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035129A (en) * | 2017-04-21 | 2017-08-11 | 五冶集团上海有限公司 | Adjustable stepping system |
| CN107035129B (en) * | 2017-04-21 | 2020-05-05 | 五冶集团上海有限公司 | Adjustable stepping system |
| CN107697241A (en) * | 2017-11-03 | 2018-02-16 | 中船黄埔文冲船舶有限公司 | A kind of body section scaffold and its building method |
| CN108330984A (en) * | 2018-01-30 | 2018-07-27 | 中国华冶科工集团有限公司 | The adjustable assembly type cat ladder of pedal angle |
| CN108330984B (en) * | 2018-01-30 | 2024-02-02 | 中国华冶科工集团有限公司 | Assembled cat ladder with adjustable pedal angle |
| CN109538108A (en) * | 2019-01-04 | 2019-03-29 | 汪志勇 | A kind of adjustable ladder of pedal angle |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |
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| RJ01 | Rejection of invention patent application after publication |