CN106150334A - Novel extension ladder - Google Patents
Novel extension ladder Download PDFInfo
- Publication number
- CN106150334A CN106150334A CN201610773204.8A CN201610773204A CN106150334A CN 106150334 A CN106150334 A CN 106150334A CN 201610773204 A CN201610773204 A CN 201610773204A CN 106150334 A CN106150334 A CN 106150334A
- Authority
- CN
- China
- Prior art keywords
- split ring
- tension force
- cleat stanchion
- stanchion pipe
- force split
- 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
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
-
- 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
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
- E06C1/125—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic with tubular longitudinal members nested within each other
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/06—Securing devices or hooks for parts of extensible ladders
-
- 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
- E06C7/082—Connections between rungs or treads and longitudinal members
- E06C7/086—Connections between rungs or treads and longitudinal members with a connecting piece inserted in a hollow rung
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
A kind of Novel extension ladder, including at least three sections of bench, described bench includes cleat stanchion pipe and step, the two ends of described step are all connected with step bracket, described step bracket is connected with described cleat stanchion pipe, in described neighbouring bench, in the cleat stanchion pipe of the nested adjacent lower section of cleat stanchion pipe above, described Novel extension ladder also includes tension force split ring slow descending device, described tension force split ring slow descending device includes tension force split ring and tension force split ring support, fixing button hole it is arranged on described tension force split ring support, the lower end of described tension force split ring support is provided with a cannelure, described tension force split ring it is set with in described cannelure, the inwall lower end of cleat stanchion pipe above arranges button bit, described button bit coordinates in described fixing button hole, described tension force split ring is close to the inwall of the cleat stanchion pipe of adjacent lower section.The Novel extension ladder that the present invention provides that a kind of simple operation, safety be higher, connectivity robustness is good between step.
Description
Technical field
The present invention relates to ladder, especially a kind of extension ladder.
Background technology
Ladder is the necessary in people's daily life, engineer operation, and ladder is the most long and volume big, thus
There is a lot of inconvenience when carrying and storage, just have for this some producers to devise telescopic ladder to solve the problems referred to above.Currently
In more representational a few class extension ladder, the most preferably solve usual ladder problem of inconvenience in carrying and storage,
But in actual use, but there is contraction expansion process time-consumingly long, bench decrease speed the most easily hurt sb.'s feelings and between step, connect jail
The problems such as solidity is the strongest.
Summary of the invention
In order to overcome the contraction of the most existing extension ladder launch process time-consumingly long, bench decrease speed the most easily hurt sb.'s feelings and
The deficiency that between step, connectivity robustness is the strongest, the present invention provides that a kind of simple operation, safety be higher, connectivity robustness between step
Good Novel extension ladder.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of Novel extension ladder, including at least three sections of bench, described bench includes cleat stanchion pipe and step, the two of described step
End is all connected with step bracket, and described step bracket is connected with described cleat stanchion pipe, in described neighbouring bench, above
The nested adjacent lower section of cleat stanchion pipe cleat stanchion pipe in, described Novel extension ladder also includes tension force split ring slow descending device, described
Power split ring slow descending device includes tension force split ring and tension force split ring support, described tension force split ring support is arranged over solid
Determining button hole, the lower end of described tension force split ring support is provided with a cannelure, is set with described tension force split ring in described cannelure,
The inwall lower end of cleat stanchion pipe above arranges button bit, and described button bit coordinates with described fixing button hole, described tension force split ring
It is close to the inwall of the cleat stanchion pipe of adjacent lower section；
The external diameter of described tension force split ring support is bigger than the internal diameter of the cleat stanchion pipe of top with position, and the tension force under naturalness is opened
The external diameter of choma is more than the internal diameter of the cleat stanchion pipe of adjacent lower section.
Further, described step bracket arranging software buffer unit, described software buffer unit is outer lug shape.
Further, described cleat stanchion pipe has interior fixing post holes, described step bracket has extenal fixation post holes, fixing
Post passes described extenal fixation post holes and interior fixing post holes, and described fixing post has pin hole, and fixing post latch is through step bracket
Through described pin hole.
Further, in addition to the bench of top and lowermost end, in the step bracket of remaining each bench, install three
Angle swing arm tripper, described triangle swing arm tripper include hand pushing switch, release boss, triangle swing arm, cylinder, spring and
Alignment pin, described hand pushing switch links with alignment pin, and described alignment pin one end contacts at spring one end, the other end of described spring
Being positioned at cylinder, described cylinder is fixed in step bracket, and the other end of described alignment pin coordinates with the hole, location of cleat stanchion pipe, institute
State the first motion end linkage with triangle swing arm, the second motion end of described triangle swing arm and the three of adjacent lower section in the middle part of alignment pin
The boss of angle swing arm tripper coordinates.
Beneficial effects of the present invention is mainly manifested in: simple operation, and contraction expansion process is the shortest, and safety is higher,
Between step, connectivity robustness is good.
Accompanying drawing explanation
Fig. 1 is the organigram stretching use state of Novel extension ladder.
Fig. 2 is bench fixing and locking device, the organigram of triangle swing arm tripper.
Fig. 3 is the organigram of tension force split ring slow descending device, and wherein, (a) is tension force split ring support and be positioned at
The decomposing schematic representation of the cleat stanchion pipe of side；B () is the structure chart of the tension force split ring slow descending device after assembling；C () is tension force opening
The schematic diagram of ring.
Fig. 4 is the organigram of software buffer unit, and wherein, (a) is deployed condition；B () is rounding state.
Fig. 5 is the organigram of step bracket fixing device.
Fig. 6 is the sectional view at the A of Fig. 5, and wherein, (a) is section plan, and (b) is three dimensional sectional view.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
With reference to Fig. 1～Fig. 6, a kind of Novel extension ladder, including at least three sections of bench, described bench includes cleat stanchion pipe 1 and ladder
Level 2, the two ends of described step 2 are all connected with step bracket 3, and described step bracket 3 is connected with described cleat stanchion pipe 1, described up and down
In adjacent bench, in the cleat stanchion pipe of the nested adjacent lower section of cleat stanchion pipe above, described Novel extension ladder also includes tension force
Split ring slow descending device, described tension force split ring slow descending device includes tension force split ring 14 and tension force split ring support 11, described
Tension force split ring support 11 is arranged over fixing button hole 12, and the lower end of described tension force split ring support 11 is provided with a cannelure,
Being set with described tension force split ring in described cannelure, the inwall lower end of cleat stanchion pipe above arranges button bit, described button bit with
Described fixing button hole 12 coordinates, and described tension force split ring 14 is close to the inwall of the cleat stanchion pipe of adjacent lower section；
The external diameter of described tension force split ring support 11 is bigger than the internal diameter of the cleat stanchion pipe 1 of top with position, opening under naturalness
The external diameter of power split ring 14 is more than the internal diameter of the cleat stanchion pipe 1 of adjacent lower section.
Further, described step bracket 3 arranging software buffer unit 15, described software buffer unit 15 is in outer lug
Shape.
Further, described cleat stanchion pipe 1 has interior fixing post holes 19, described step bracket has extenal fixation post holes
18, fixing post 16, through described extenal fixation post holes 18 and interior fixing post holes 19, described fixing post 16 has pin hole, fixing
Post latch 17 passes described pin hole through step bracket.
Further, in addition to the bench of top and lowermost end, in the step bracket of remaining each bench, install three
Angle swing arm tripper, described triangle swing arm tripper include hand pushing switch 8, release boss 9, triangle swing arm 10, cylinder 4,
Spring 5 and alignment pin 6, described hand pushing switch 8 links with alignment pin 6, and described alignment pin 6 one end contacts in spring 5 one end, described
The other end of spring 5 is positioned at cylinder 4, and described cylinder 4 is fixed in step bracket 3, the other end of described alignment pin 6 and cleat stanchion
The hole, location of pipe 1 coordinates, and in the middle part of described alignment pin 6, the first motion end with triangle swing arm 10 links, described triangle swing arm 10
Second motion end coordinates with the boss of the triangle swing arm tripper of adjacent lower section.
Seeing Fig. 2, triangle swing arm tripper is arranged on except end step 2 (1) and remaining in addition to top step 2 (n)
The two ends of step 2 are each a set of, and often set fixing and locking device includes the cylinder 4 of a horizontally set, and the one end in cylinder 4 is provided with
Spring 5, the other end of cylinder 4 is provided with alignment pin 6, and triangle swing arm tripper the most also includes being arranged on step 2 (2) two ends
Hand push solution lock-switch 8, release boss 9 and triangle swing arm 10.When extended ladder pulls open, bench rises to alignment pin 6 and cleat stanchion
When circular hole 7 on pipe 1 is corresponding, alignment pin 6 i.e. can be automatically inserted in circular hole 7 by the effect of spring 5, thus lock this bench
Will not fall, the bench continuing to extend to it following is fully open, can use.When the needs telescopic ladder period of the day from 11 p.m. to 1 a.m, promote 2 liang of step
The hand pushing switch 8 of end, to direction shown in arrow, drives the equidirectional motion of alignment pin 6 (1) the hole, location 7 from cleat stanchion pipe 1 (2)
(1) exiting in, its above bench is landed immediately, and when a upper step drop on step 2, the release boss on step 2 is upwards
Top presses the triangle swing arm 10 of a step, and triangle swing arm 10 is by along himself axis of rotation and drive alignment pin 6 (2) to arrow
The motion of shown direction is also exited from the hole, location 7 (2) of cleat stanchion 1 (3), and its above bench is landed, by that analogy, until completing
The contraction of whole ladder.
See Fig. 3, be provided with the slow fall of tension force split ring in the bottom of all cleat stanchion pipes in addition to lowermost end cleat stanchion pipe
Device, including the button bit 13 on tension force split ring support 11, fixing button hole 12, cleat stanchion pipe, tension force split ring 14.Tension force split ring
Pedestal upper end is provided with several fixing button holes, for being anchored and fixed at the button bit of cleat stanchion pipe lower end processing, tension force split ring
The lower end of support is provided with a groove, and for installation tension split ring, tension force split ring 14 is not when loading in cleat stanchion pipe, and it is straight
Footpath is more than the internal diameter of cleat stanchion pipe, and after loading cleat stanchion pipe, it then can rely on the tension force of self to be close to the inwall of cleat stanchion pipe, plays increase
The effect of frictional force.When bench declines, under the effect of frictional force, this bench will slowly decline.
Seeing Fig. 4, the top half at ladder has several to be arranged on step bracket projection, soft software buffering
Device 15.If ladder occurs surprisingly to topple over, it is avoided that the important structuring of ladder top half is (such as cleat stanchion pipe, step, step
Support etc.) occur directly to clash into ground, shift stress point, and be software part owing to toppling over impact attenuation device, can have
The impulsive force that effect reduction ladder is toppled over and produced, thus protection ladder can keep normal function after toppling over and just meet effectively
The mechanical performance often used.
See Fig. 5 and Fig. 6, step bracket fixing device, specifically include that fixing post 16, fixing post latch 17, extenal fixation post
Hole 18, interior fixing post holes 19.The extenal fixation post holes 18 and interior solid that fixing post 16 is arranged is aimed at step bracket and cleat stanchion Guan Shangyou
Fixed column hole 19, after fixing post 16 inserts extenal fixation post holes 18 and interior fixing post holes 19, is axially inserted into fixing post at step bracket
Latch 17, in the extenal fixation post holes 18 be fixed on fixing post 16 on step bracket, so that step bracket is held in cleat stanchion pipe
On will not be pulled out, it is ensured that the safety and stability of ladder.
Obviously, the examples detailed above of the present invention is only for clearly demonstrating example of the present invention, and is not to this
The restriction of the embodiment of invention.For those of ordinary skill in the field, the most all right
Make other changes in different forms.Here cannot all of embodiment be given exhaustive.Every belong to the present invention
The obvious change extended out of technical scheme or variation still in the row of protection scope of the present invention.
Claims (4)
1. a Novel extension ladder, including at least three sections of bench, described bench includes cleat stanchion pipe and step, the two ends of described step
All being connected with step bracket, described step bracket is connected with described cleat stanchion pipe, in described neighbouring bench, above
In the cleat stanchion pipe of the nested adjacent lower section of cleat stanchion pipe, it is characterised in that: described Novel extension ladder also includes tension force split ring slow fall dress
Putting, described tension force split ring slow descending device includes tension force split ring and tension force split ring support, on described tension force split ring support
Side is provided with fixing button hole, and the lower end of described tension force split ring support is provided with a cannelure, described of suit in described cannelure
Power split ring, the inwall lower end of cleat stanchion pipe above arranges button bit, and described button bit coordinates with described fixing button hole, described
Power split ring is close to the inwall of the cleat stanchion pipe of adjacent lower section；
The external diameter of described tension force split ring support is bigger than the internal diameter of cleat stanchion pipe above, the tension force split ring under naturalness
External diameter more than the internal diameter of cleat stanchion pipe of adjacent lower section.
2. Novel extension ladder as claimed in claim 1, it is characterised in that: software buffer unit is set on described step bracket,
Described software buffer unit is outer lug shape.
3. Novel extension ladder as claimed in claim 1 or 2, it is characterised in that: have interior fixing post holes, institute on described cleat stanchion pipe
Stating and have extenal fixation post holes on step bracket, fixing post is through described extenal fixation post holes and interior fixing post holes, on described fixing post
Having pin hole, fixing post latch passes described pin hole through step bracket.
4. Novel extension ladder as claimed in claim 1 or 2, it is characterised in that: in addition to the bench of top and lowermost end, its
Installing triangle swing arm tripper in the step bracket of each bench remaining, described triangle swing arm tripper includes that hand push is opened
Pass, release boss, triangle swing arm, cylinder, spring and alignment pin, described hand pushing switch links with alignment pin, described alignment pin one
End contacts at spring one end, and the other end of described spring is positioned at cylinder, and described cylinder is fixed in step bracket, described location
The other end of pin coordinates with the hole, location of cleat stanchion pipe, and in the middle part of described alignment pin, the first motion end with triangle swing arm links, described
Second motion end of triangle swing arm coordinates with the boss of the triangle swing arm tripper of adjacent lower section.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610773204.8A CN106150334A (en) | 2016-08-30 | 2016-08-30 | Novel extension ladder |
| PCT/CN2016/098631 WO2018040122A1 (en) | 2016-08-30 | 2016-09-10 | New extension ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610773204.8A CN106150334A (en) | 2016-08-30 | 2016-08-30 | Novel extension ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106150334A true CN106150334A (en) | 2016-11-23 |
Family
ID=57344799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610773204.8A Pending CN106150334A (en) | 2016-08-30 | 2016-08-30 | Novel extension ladder |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106150334A (en) |
| WO (1) | WO2018040122A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338789A (en) * | 2021-06-30 | 2021-09-03 | 佛山市顺德区万怡家居用品有限公司 | Slowly descending structure of extension ladder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1088949A (en) * | 1996-09-12 | 1998-04-07 | Kazuo Yasunaga | Telescopic stepladder |
| WO2008064532A1 (en) * | 2006-11-29 | 2008-06-05 | Wanxing Wang | An extensible ladder with anti-pinch device |
| WO2010034135A1 (en) * | 2008-09-25 | 2010-04-01 | Kuo Chingyao | An extension ladder |
| CN202194549U (en) * | 2011-07-18 | 2012-04-18 | 沈小秋 | Extension ladder |
| GB2536347A (en) * | 2015-03-13 | 2016-09-14 | Teletower Com Ltd | Pneumatic damper |
| CN206111065U (en) * | 2016-08-30 | 2017-04-19 | 潘跃进 | Novel extension ladder |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100270106A1 (en) * | 2006-03-10 | 2010-10-28 | Mei-Hua Chen | Securing device for extending ladder |
| CN2898256Y (en) * | 2006-04-29 | 2007-05-09 | 郭晶耀 | Telescopic ladder |
| CN201273132Y (en) * | 2008-09-12 | 2009-07-15 | 胡正江 | Novel extension ladder |
| CN102278059B (en) * | 2011-07-08 | 2013-06-05 | 王万兴 | Extension ladder with finger-protected device |
| CN205445454U (en) * | 2015-12-24 | 2016-08-10 | 东莞威信运动用品有限公司 | Flexible pipe uide bushing and flexible pipe staircase |
-
2016
- 2016-08-30 CN CN201610773204.8A patent/CN106150334A/en active Pending
- 2016-09-10 WO PCT/CN2016/098631 patent/WO2018040122A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1088949A (en) * | 1996-09-12 | 1998-04-07 | Kazuo Yasunaga | Telescopic stepladder |
| WO2008064532A1 (en) * | 2006-11-29 | 2008-06-05 | Wanxing Wang | An extensible ladder with anti-pinch device |
| WO2010034135A1 (en) * | 2008-09-25 | 2010-04-01 | Kuo Chingyao | An extension ladder |
| CN202194549U (en) * | 2011-07-18 | 2012-04-18 | 沈小秋 | Extension ladder |
| GB2536347A (en) * | 2015-03-13 | 2016-09-14 | Teletower Com Ltd | Pneumatic damper |
| CN206111065U (en) * | 2016-08-30 | 2017-04-19 | 潘跃进 | Novel extension ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018040122A1 (en) | 2018-03-08 |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |