CN200996264Y - Internal ladder leg of liftable ladder - Google Patents
Internal ladder leg of liftable ladder Download PDFInfo
- Publication number
- CN200996264Y CN200996264Y CN 200720066880 CN200720066880U CN200996264Y CN 200996264 Y CN200996264 Y CN 200996264Y CN 200720066880 CN200720066880 CN 200720066880 CN 200720066880 U CN200720066880 U CN 200720066880U CN 200996264 Y CN200996264 Y CN 200996264Y
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- CN
- China
- Prior art keywords
- ladder leg
- lift
- connecting portion
- inner ladder
- leg
- 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 - Lifetime
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Abstract
The utility model relates to an internal ladder leg for a companion ladder. The internal ladder leg is positioned in the external ladder leg of the companion ladder and characterized in that the internal ladder leg comprises two supporting parts and a connecting part arranged between the supporting parts.
Description
Technical field
The utility model relates to a kind of terraced leg, relates in particular to a kind of inner ladder leg of lift.
Background technology
In by manhole ladder and the outer terraced lift of forming, generally be that outer ladder leg is made and had the rectangular hollow shape, have a rectangle outline and inner ladder leg is corresponding, so that hide in the outer ladder leg and do oscilaltion, the defective of this inner ladder leg is to use material more, and weight is also bigger, is unfavorable for carrying.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of inner ladder leg of saving the lift of material, weight reduction.
The utility model is to solve the problems of the technologies described above the inner ladder leg that the technical scheme that adopts provides a kind of lift, and described inner ladder leg comprises two support portions and is connected in connecting portion between described two support portions.
In the inner ladder leg of above-mentioned lift, described connecting portion both sides are connected to the middle part of described two support portions.
In the inner ladder leg of above-mentioned lift, described connecting portion respectively with vertical connection of described two support portions.
In the inner ladder leg of above-mentioned lift, the junction of described connecting portion and described support portion has arc transiting surface.
In the inner ladder leg of above-mentioned lift, the dual-side of described each support portion is respectively equipped with the kink to the bending of described connecting portion direction.
In the inner ladder leg of above-mentioned lift, has the arc corner between the side of described kink and described support portion.
In the inner ladder leg of above-mentioned lift, be interval with several connecting holes on the described connecting portion.
When above-mentioned inner ladder leg was inserted in the outer ladder leg, two support portions were against respectively on two opposite faces of outer ladder leg inwall, thereby made stable place in the outer ladder leg of inner ladder leg and do not rock.Therefore compared with prior art, the utility model advantage is to save the use of material in guaranteed strength, alleviates whole ladder thus, reduces the ladder manufacturing cost.
Description of drawings
Below in conjunction with the drawings and specific embodiments feature and advantage of the present utility model are described, wherein:
Fig. 1 is the perspective view of an embodiment of inner ladder leg of the utility model lift;
Fig. 2 is a cross sectional representation embodiment illustrated in fig. 1;
Fig. 3 is the user mode schematic diagram of the inner ladder leg of the utility model lift;
Fig. 4 is the schematic cross-section of user mode figure shown in Figure 3.
The specific embodiment
See also Fig. 1, shown in Figure 2, an embodiment of the inner ladder leg 10 of the utility model lift comprises a connecting portion 11 and two support portions 12, wherein two support portions 12 are oppositely arranged, and connecting portion 11 is connected between two support portions 12, the cross section of whole inner ladder leg 10 is simple light " I " type, therefore compare rectangular design in the past, this inner ladder leg is more saved material.Connecting portion 11 and two support portions 12 all can be adopted such as metal material such as aluminium alloyss and be made.
In the present embodiment, connecting portion 11 is straight plane tabular, and support portion 12 also is straight plane tabular.Two support portions 12 are parallel to each other, and the two ends of connecting portion 11 are connected to the middle part of two support portions 12, and connecting portion 11 is to be 90 ° vertical the connection with 12 of two support portions.Both sides in the junction of connecting portion 11 and two support portions 12 all have arc transiting surface 110, make the thickness of junction all bigger than connecting portion 11 and support portion 12, therefore can increase the intensity of connection.
Slightly curl to connecting portion 11 directions at the dual-side of each support portion 12, form and be about 90 ° kink 120, kink 120 has the thickness bigger than support portion 12, and and the side of support portion 12 between form arc corner 121.These kinks 120 with higher intensity help to make four dihedrals of support portion 12 and outer ladder leg inwall to become excellent contact, whereby enhanced stability.
In addition, several connecting holes 111 of space set on connecting portion 11 are in order to connect interior pedal.
See also consult in conjunction with Fig. 4 shown in Figure 3, with have a straight passage 21 in the outer ladder leg 20 that inner ladder leg 10 cooperates, when inner ladder leg 10 is inserted passage 21, two support portions 12 are against respectively on two opposite faces 22 of passage 21, and four jiaos of a plurality of kinks 120 and passage 21 offset, and inner ladder leg 10 is stable to be placed passage 21 and do not rock thereby make.
Above embodiment explanation only is preferred embodiment explanation of the present utility model, and those skilled in the art can make the replacement and the change of other all equivalence according to the foregoing description explanation of the present utility model.For example connecting portion 11 and support portion 12 are changed, replaced to the connecting portion of arc slightly and support portion etc.Yet these are replaced and change according to all equivalences that the utility model embodiment is done, and belong to invention spirit of the present utility model and reach by in the claim that claim defined.
Claims (7)
1. the inner ladder leg of lift is used for inserting the outer ladder leg of lift, it is characterized in that, described inner ladder leg comprises two support portions and is connected in connecting portion between described two support portions.
2. the inner ladder leg of lift as claimed in claim 1 is characterized in that, described connecting portion both sides are connected to the middle part of described two support portions.
3. the inner ladder leg of lift as claimed in claim 1 or 2 is characterized in that, described connecting portion respectively with vertical connection of described two support portions.
4. the inner ladder leg of lift as claimed in claim 1 is characterized in that, the junction of described connecting portion and described support portion has arc transiting surface.
5. the inner ladder leg of lift as claimed in claim 1 is characterized in that, the dual-side of described each support portion is respectively equipped with the kink to the bending of described connecting portion direction.
6. the inner ladder leg of lift as claimed in claim 5 is characterized in that, has the arc corner between the support portion side at described kink and its place.
7. the inner ladder leg of lift as claimed in claim 1 is characterized in that, is interval with several connecting holes on the described connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720066880 CN200996264Y (en) | 2007-01-31 | 2007-01-31 | Internal ladder leg of liftable ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720066880 CN200996264Y (en) | 2007-01-31 | 2007-01-31 | Internal ladder leg of liftable ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200996264Y true CN200996264Y (en) | 2007-12-26 |
Family
ID=38994694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720066880 Expired - Lifetime CN200996264Y (en) | 2007-01-31 | 2007-01-31 | Internal ladder leg of liftable ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200996264Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017190615A1 (en) * | 2016-05-03 | 2017-11-09 | 厦门新技术集成有限公司 | Telescopic ladder |
-
2007
- 2007-01-31 CN CN 200720066880 patent/CN200996264Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017190615A1 (en) * | 2016-05-03 | 2017-11-09 | 厦门新技术集成有限公司 | Telescopic ladder |
| US11142949B2 (en) | 2016-05-03 | 2021-10-12 | New-Tec Integration (Xiamen) Co., Ltd. | Retractable ladder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071226 |