CN202348108U - Telescopic ladder - Google Patents
Telescopic ladder Download PDFInfo
- Publication number
- CN202348108U CN202348108U CN2011204445519U CN201120444551U CN202348108U CN 202348108 U CN202348108 U CN 202348108U CN 2011204445519 U CN2011204445519 U CN 2011204445519U CN 201120444551 U CN201120444551 U CN 201120444551U CN 202348108 U CN202348108 U CN 202348108U
- Authority
- CN
- China
- Prior art keywords
- ladder
- lengthening
- holes
- seats
- legs
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a telescopic ladder and mainly solves the problem that the ladder cannot be safely used on an uneven ground. The telescopic ladder comprises a ladder face and four ladder legs, wherein the four ladder legs are fixedly connected with the lower part of the ladder face; a horizontal pin hole is formed at the lower end of each ladder leg; lengthening seats are cavities; the ladder legs are arranged in the lengthening seats; a plurality of through holes are correspondingly formed on two sides of each of the lengthening seats; a pin shaft passes through the through holes and the pin holes and then is fixed by a fixed screw cap. The through holes are formed on the two sides of each of the lengthening seat, so that the extension length of each lengthening seat can be adjusted according to requirement of use height; and if the ground is uneven, the lengthening seats with different lengths can extend out of the lower parts of the ladder legs to adapt to the uneven ground. The telescopic ladder can be flexibly and conveniently used.
Description
Technical field
The utility model relates to a kind of ladder, specifically a kind of extension ladder.
Background technology
People ascend a height to be needed by ladder, and the ladder height that generally uses is at present fixed, and only is adapted at flat ground surface and uses, when people during operation, can only play unsettled terraced leg pad the danger when having increased people's operation on broken terrain or stair.
The utility model content
The purpose of the utility model is to provide a kind of extension ladder, and this ladder can adapt to uneven ground through the swinging seat that adds of regulating terraced leg end in use, also can regulate the length of terraced leg according to the use needs.
The technical scheme that its technical problem of the utility model solution is taked is: a kind of extension ladder; Its structure comprises tread and terraced leg, and described tread below is fixedly connected four terraced legs, and described terraced leg lower end is respectively equipped with horizontal pin-and-hole; Add the cavity that swinging seat is an inner hollow; Described terraced leg places and adds the swinging seat inner chamber, is provided with a plurality of through holes adding swinging seat both sides correspondence, and bearing pin is fixed by hold-doun nut after passing through hole and pin-and-hole.
The beneficial effect of the utility model is: be respectively equipped with a plurality of through holes owing to add the swinging seat both sides, can be according to the needs that use height, and adjusting adds the length that swinging seat stretches out; If ground is uneven, also can the swinging seat that add of each terraced leg bottom be stretched out different length, to adapt to uneven ground, flexible and convenient to use.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1 terraced leg, 2 treads, 3 add swinging seat, 4 pin-and-holes, 5 through holes, 6 bearing pins, 7 hold-doun nuts.
The specific embodiment
As shown in Figure 1.A kind of extension ladder; Its structure comprises tread 2 and terraced leg 1, and described tread 2 belows are fixedly connected four terraced legs 1, and described terraced leg 1 lower end is respectively equipped with horizontal pin-and-hole 4; Add swinging seat 3 and be the cavity of inner hollow; Described terraced leg 1 places and adds swinging seat 3 inner chambers, is provided with a plurality of through holes 5 adding swinging seat 3 both sides correspondences, and it is fixing by hold-doun nut 7 with pin-and-hole 4 backs that bearing pin 6 passes through hole 5.
During use, be respectively equipped with a plurality of through holes 5 owing to add swinging seat 3 both sides, can be according to the needs that use height, adjusting adds the length that swinging seat 3 stretches out, and corresponding then through hole 5 is plugged bearing pin 6 with pin-and-hole 4, and is fastening through the hold-doun nut 7 of bearing pin 6 ends; If ground is uneven, also can the swinging seat 3 that add of each terraced leg bottom be stretched out different length, to adapt to uneven ground, flexible and convenient to use.
Claims (1)
1. an extension ladder comprises tread and terraced leg, and described tread below is fixedly connected four terraced legs; It is characterized in that; Described terraced leg lower end is respectively equipped with horizontal pin-and-hole, adds the cavity that swinging seat is an inner hollow, and described terraced leg places and adds the swinging seat inner chamber; Be provided with a plurality of through holes adding swinging seat both sides correspondence, bearing pin is fixed by hold-doun nut after passing through hole and pin-and-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204445519U CN202348108U (en) | 2011-11-11 | 2011-11-11 | Telescopic ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204445519U CN202348108U (en) | 2011-11-11 | 2011-11-11 | Telescopic ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348108U true CN202348108U (en) | 2012-07-25 |
Family
ID=46537117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204445519U Expired - Fee Related CN202348108U (en) | 2011-11-11 | 2011-11-11 | Telescopic ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229081A (en) * | 2014-09-03 | 2014-12-24 | 常熟市常连船舶设备有限公司 | Vertical ladder for ship |
-
2011
- 2011-11-11 CN CN2011204445519U patent/CN202348108U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229081A (en) * | 2014-09-03 | 2014-12-24 | 常熟市常连船舶设备有限公司 | Vertical ladder for ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121111 |