CN105927138B - Extension ladder - Google Patents
Extension ladder Download PDFInfo
- Publication number
- CN105927138B CN105927138B CN201610446912.0A CN201610446912A CN105927138B CN 105927138 B CN105927138 B CN 105927138B CN 201610446912 A CN201610446912 A CN 201610446912A CN 105927138 B CN105927138 B CN 105927138B
- Authority
- CN
- China
- Prior art keywords
- ladder bars
- ladder
- bearing pin
- bars
- machined
- 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.)
- Active
Links
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/02—Extending means
- E06C7/04—Hand-operated extending means carried by the ladder
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses a kind of extension ladder, it belongs to apparatus field, and it can shrink very little and facilitate portable.Its parallelogram connection-rod component comprising one group of vertically-arranged, ladder bars, the bearing pin of the parallelogram connection-rod component two side ends all makees the lengthening processing of forward direction, all set wears the ladder bars for the horizontal device that cross section is square on the part of lengthening, the left and right ends position of ladder bars is symmetrically respectively machined with chute penetrating before and after one section, and the connection of ladder bars and bearing pin is set on realization of coming together by the elongated portion of the chute at ladder bars two ends and the bearing pin of homonymy；Middle part in about one group two ladder bars on the lower is machined with each one opposite of vertical screw of the hand of spiral, screw internal thread is connected to a matched vertical screw mandrel, the middle part device of screw mandrel has other ladder bars beyond a handwheel, this group of ladder bars to be all machined with vertical perforation in middle part；A supporting leg is respectively connected downwards at the two ends of a ladder bars bottom.
Description
Technical field
The present invention is relevant with apparatus, specifically refers to a kind of extension ladder for ascending a height.
Background technology
Ladder is a kind of using extensive apparatus of climbing to a higher point, and reduces its gabarit length dimension people for the ease of portable and is made that
Ladder with folder function, the mode of folding is varied, has turnover type to have drawing and pulling type and rod-pulling type etc., but for artificial tune
The reduction of such a its length of ladder of section is all very limited, typically not less than 1/2, it is necessary to eliminate improvement.
The content of the invention
The purpose of the present invention is to provide a kind of new technical scheme extension ladder of ladder, and it can solve foregoing ask
Topic.
The content of technical solution of the present invention is as follows：Its parallelogram connection-rod component comprising one group of vertically-arranged, ladder bars, it is described
The bearing pin of parallelogram connection-rod component two side ends all makees the lengthening processing of forward direction, and all set dresses are horizontal on the part of lengthening
The ladder bars for the horizontal device that section is square, the left and right ends position of ladder bars is symmetrically respectively machined with cunning penetrating before and after one section
The connection of groove, ladder bars and bearing pin is exactly that the elongated portion of the bearing pin by the chute at ladder bars two ends and homonymy is set on reality of coming together
Existing；Middle part in about one group two ladder bars on the lower is machined with each one opposite of vertical screw of the hand of spiral, spiral shell
Hole internal thread is connected to a matched vertical screw mandrel, and the middle part device of screw mandrel has a handwheel, this group of ladder bars
Other ladder bars in addition are all machined with vertical perforation in middle part；Respectively connected downwards at the two ends of a ladder bars bottom
One supporting leg.
The beneficial effects of the invention are as follows：Ladder can be retracted to very short state, be easy to portable, be this apparatus of ladder
Useful improvement.
Brief description of the drawings：
Fig. 1 is the front view of the design ladder.
Fig. 2 is left side view.
In each figure, 1 is ladder bars, and 2 be bearing pin, and 3 be chute, and 4 be parallelogram connection-rod component, and 5 be perforation, and 6 be screw mandrel,
7 be screw, and 8 be handwheel, and 9 be supporting leg.
Embodiment：
Below in conjunction with the accompanying drawings to the design explanation for example.
As shown in Figure 1 and Figure 2, parallelogram connection-rod component 4 of the design comprising one group of vertically-arranged, ladder bars 1, described parallel
The bearing pin 2 of quadrilateral connecting rod component two side ends all makees the lengthening processing of forward direction, and all set dresses are transversal on the part of lengthening
The ladder bars 1 for the horizontal device that face is square, the left and right ends position of ladder bars is symmetrically respectively machined with cunning penetrating before and after one section
Groove 3, the connection of ladder bars 1 and bearing pin 2 be exactly worn with the elongated portion of the bearing pin of homonymy by the chute 3 at ladder bars two ends together with
Come what is realized；Middle part in about one group two ladder bars on the lower is machined with the opposite vertical screw 7 each one of the hand of spiral
It is individual, it is illustrated that in this group of ladder bars be several from the bottom up three, the 4th ladder bars, position is a little in order to be operated on the lower,
The internal thread of screw 7 is connected to a matched vertical screw mandrel 6, and the middle part device of screw mandrel has a handwheel 8, this group
Other ladder bars beyond ladder bars are all machined with vertical perforation 5 in order in ladder in its upper and lower each ladder bars in middle part
Screw mandrel 6 is accommodated when son is reclaimed；Meanwhile, a supporting leg 9 is respectively connected downwards at the two ends of a ladder bars bottom so that overall obtain
Stable support.Concrete operations in use, trailed by rotating handwheel or third and fourth the nearly root ladder bars that contract spacing, due to
The thread rotary orientation of screw on the contrary, rotate handwheel can obtain above and below ladder bars while away from or simultaneously close, and parallelogram
The design feature of link assembly again can be by this motion synchronous duplication, this telescopic variation process in each group connecting rod assembly
Horizontally slip process of the bearing pin in chute, the height of so whole ladder will the acceleration of equimultiple simultaneously elongate or shorten,
So that ladder obtains the use state of elongation and the recovery state of cripetura, the different needs for fully meeting portable and using are
The useful improvement of this apparatus of ladder, in general, the ladder of such a structure can obtain the cripetura amount more than more than 3/4, greatly
Facilitate portable the need for.
Claims (1)
1. a kind of extension ladder, its parallelogram connection-rod component comprising one group of vertically-arranged, ladder bars, parallelogram connection-rod component
The bearing pin of two side ends all makees the lengthening processing of forward direction, on the part of lengthening all set wear that cross section is square it is horizontal
The ladder bars of device, it is characterized in that the left and right ends position of the ladder bars is symmetrically respectively machined with chute penetrating before and after one section, ladder
The connection of bar and bearing pin is set on realization of coming together by the elongated portion of the chute at ladder bars two ends and the bearing pin of homonymy；
Middle part in about one group two ladder bars on the lower is machined with each one opposite of vertical screw of the hand of spiral, spiral shell in screw
Line is connected to a matched vertical screw mandrel, and the middle part device of screw mandrel has beyond a handwheel, this group of ladder bars
Other ladder bars are all machined with vertical perforation in middle part；One is respectively connected downwards at the two ends of a ladder bars bottom
Leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610446912.0A CN105927138B (en) | 2016-06-18 | 2016-06-18 | Extension ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610446912.0A CN105927138B (en) | 2016-06-18 | 2016-06-18 | Extension ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927138A CN105927138A (en) | 2016-09-07 |
| CN105927138B true CN105927138B (en) | 2017-07-28 |
Family
ID=56830685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610446912.0A Active CN105927138B (en) | 2016-06-18 | 2016-06-18 | Extension ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105927138B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561065B (en) * | 2018-01-30 | 2020-03-27 | 张凤菊 | Household ladder |
| CN108150086B (en) * | 2018-01-30 | 2020-05-22 | 永康市东旭梯业有限公司 | Ladder |
| CN108005567B (en) * | 2018-01-30 | 2019-11-19 | 泉州台商投资区一创工业设计有限公司 | A kind of telescopic ladder |
| CN109042558A (en) * | 2018-10-29 | 2018-12-21 | 罗城仫佬族自治县群富种养农民专业合作社 | Silkworm frame |
| CN109538109B (en) * | 2018-11-13 | 2020-10-13 | 张磊 | Foot-operated elevator convenient to use |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2400567Y (en) * | 1999-11-09 | 2000-10-11 | 吴盛福 | Extension ladder |
| JP2006052603A (en) * | 2004-08-16 | 2006-02-23 | Takanori Hatanaka | Expansible structure, foldable ladder, foldable support, foldable instrument, and foldable pipe |
| CN201627531U (en) * | 2010-02-10 | 2010-11-10 | 符宏军 | Expansion folding ladder |
| CN201818232U (en) * | 2010-09-19 | 2011-05-04 | 北京工业大学 | Emergency telescopic ladder with non-return function |
| CN204040882U (en) * | 2014-08-15 | 2014-12-24 | 祝建飞 | A kind of folding ladder |
-
2016
- 2016-06-18 CN CN201610446912.0A patent/CN105927138B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927138A (en) | 2016-09-07 |
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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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201229 Address after: Room 402, 4th floor, East, 125 zhenzhuhu Road, Weitang Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Suzhou Xingwei state owned Assets Management Co., Ltd Address before: 322000 no.9-7, District 1, Jiangdong District, Yiwu City, Jinhua City, Zhejiang Province Patentee before: Chen Shuo |
|
| TR01 | Transfer of patent right |