CN200996269Y - External ladder leg for liftable ladder - Google Patents
External ladder leg for liftable ladder Download PDFInfo
- Publication number
- CN200996269Y CN200996269Y CN 200720066887 CN200720066887U CN200996269Y CN 200996269 Y CN200996269 Y CN 200996269Y CN 200720066887 CN200720066887 CN 200720066887 CN 200720066887 U CN200720066887 U CN 200720066887U CN 200996269 Y CN200996269 Y CN 200996269Y
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- CN
- China
- Prior art keywords
- ladder
- leg
- lift
- ladder leg
- pedal
- 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 discloses an external leg for a companion ladder. The utility model is characterized in that the external leg comprises a hollow body, the body has an opening on the internal side, the side of the body having the opening is provided with a fixed plate that bends towards the other side, and a clearance is arranged between the fixed plate and the opening to form a through hole.
Description
Technical field
The utility model relates to a kind of terraced leg, relates in particular to a kind of outer ladder leg by manhole ladder and the outer terraced lift of forming.
Background technology
It number is 85205094 lift that Fig. 1 illustrates a kind of Chinese patent application, form by manhole ladder 10 and outer ladder 11, two outer ladder legs 111 of outer ladder 11 are hollow, its inboard is provided with open slot 112, ladder leg cross section roughly is " C " shape, and two inner ladder legs 101 of manhole ladder 10 can be hidden in the outer ladder leg 111, and interior pedal 102 links to each other with two inner ladder legs 101.But because the inboard of outer ladder leg 111 has been provided with open slot 112, cause the pedal 113 of outer ladder 11 can only be designed to less thickness, be installed on the cell wall 114 of outer ladder leg 111, its comfort and intensity are all undesirable.
For addressing this problem, common design is to be located at outer ladder leg front (promptly towards user one side) with outer pedal is outstanding, but that outstanding outer pedal not only influences is attractive in appearance, and its shared space is also unfavorable to the transportation of product in batch.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of outer ladder leg of lift of the outer pedal that big thickness can be installed.
The utility model is to solve the problems of the technologies described above the outer ladder leg that the technical scheme that adopts provides a kind of lift, described outer ladder leg comprises a hollow body, side opening in the described body, body has fixed head to the bending of opening opposite side port in a side ports of described opening, have the gap between the opposite side port of described fixed head and described opening, form a groove.
In the outer ladder leg of above-mentioned lift, described fixed head is provided with positioning convex strip at a side channel mouth place of described groove.Described positioning convex strip can be provided with continuously along described fixed head, perhaps according to the lift location interval setting of pedal outward.
In the outer ladder leg of above-mentioned lift, described body is provided with reinforcing rib at described opening opposite side port.
The fixed head of outer ladder leg of the present utility model is used for fixing the outer pedal of lift, and groove is used for the interior pedal activity for lift.Owing to have the existence of the fixed head of big thickness, feasible outer pedal is corresponding can to have big thickness, therefore its comfort level and intensity are obviously promoted, and compare the outstanding design of the sort of outer pedal in the past, the utility model will be located at two outer ladder leg inboards by outer pedal, make the ladder overall appearance succinct, and take less space.
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 a kind of structural representation of existing lift;
Fig. 2 is the perspective view of preferred embodiment of the outer ladder leg of the utility model lift;
Fig. 3 is the inboard schematic diagram of the preferred embodiment of outer ladder leg shown in Figure 2;
Fig. 4 is the schematic cross-section of the preferred embodiment of outer ladder leg shown in Figure 2;
Fig. 5 is the outer pedal schematic diagram in positioning convex strip location of the preferred embodiment of outer ladder leg shown in Figure 2;
Fig. 6 is the user mode schematic diagram that outer ladder leg shown in Figure 2 is applied to lift;
Fig. 7 is the collapse state schematic diagram of lift shown in Figure 6.
The specific embodiment
See also Fig. 2～shown in Figure 4, outer ladder leg 20 of the present utility model comprises straight elongated metal (for example aluminium alloys) hollow body 200, in the body 200 inner straight channels 201 along terraced leg that form, in order to insert the inner ladder leg of lift.Body 200 has opening inboard (even time spent two relative faces of outer ladder leg) and other sidewalls 207～209.Wherein a side ports 202a of interior side opening has a fixed head 204 to opening opposite side port 202b bending.Have the gap between fixed head 204 and the opening opposite side port 202b, form a groove 203.Fixed head 204 extends to the bottom from outer ladder leg 20 tops, and correspondingly, groove 203 also connects to the bottom from outer ladder leg 20 tops.Whole thus outer ladder leg presents the cross sectional shape of similar " G " type as shown in Figure 4.
Groove 203 be used to make the interior pedal of lift be able to place passage 201 in inner ladder leg be connected, thereby the manhole ladder that makes whole lift is up and down in the ladder outside.And can be used for fixing several outer pedals with fixed head 204 that groove 203 is positioned at terraced inboard leg equally, and make outer pedal still place the inboard of outer ladder leg 20, play the effect of saving the space.Can offer link slot, screw etc. on the fixed head 204, so that with fixing outer pedal such as the variety of way of welding, rivet, be spirally connected.Fixed head 204 can be provided with positioning convex strip 205 at a side channel mouth of groove 203, is used for external pedal and positions.As shown in Figure 5, outer pedal 21 props up positioning convex strip 205 and obtains the location with the back side 210 of its end, and is connected in fixed head 204 in modes such as welding, rivet, be spirally connected.In embodiment of the present utility model, positioning convex strip 205 can be (as shown in Figure 3) that is provided with continuously, also can be according to the location interval setting of outer pedal 21.
On the opposite side port 202b of terraced outside inboard leg opening, be provided with the reinforcing rib 206 to groove 203 bendings, as shown in Figure 4, this reinforcing rib 206 is connected in a sidewall 207 adjacent with terraced inboard leg, and roughly vertical with this sidewall 207.Compare with sidewall 207, reinforcing rib 206 has bigger thickness, thereby the port 202b of opening is played booster action, with sufficient intensity inner ladder leg is limited in the outer ladder leg passage 201.
In the present embodiment, fixed head 204, the sidewall 207～209 of outer ladder leg 20 are the plane, mutually vertical connection the between them, and the corner is curved surface, forms semi-enclosed rectangular cross sectional shape as shown in Figure 4.This shape is compared existing design and is more saved material when keeping intensity.It is worthy of note that this cross sectional shape is not construed as limiting, in other embodiments, can the sidewall 207～209 of outer ladder leg 20 be changed, form other polygons or curved wall.
Fig. 6 illustrates the user mode schematic diagram that outer ladder leg shown in Figure 2 is applied to lift.This lift comprises outer ladder 2 and manhole ladder 3, and its China and foreign countries' ladder 2 comprises two outer ladder legs 20 and several (shown in Fig. 6 3) outer pedal 2 1a～21c, and manhole ladder 3 comprises the interior pedal 31a～31c of two inner ladder legs 30 and several (shown in Fig. 6 3).Two outer ladder legs 20 of its China and foreign countries ladder 2 be arranged in parallel, and a plurality of outer pedal 21a～21c are connected in two of two outer ladder legs 20 in modes such as weld, rivet, be spirally connected respectively and are relatively fixed between the plate 204, thereby outside constituting terraced 2.And each inner ladder leg 30 of manhole ladder 3 places respectively in the passage 202 of corresponding outer ladder leg 20, and a plurality of interior pedal 31a～31c pass the groove 203 of two outer ladder legs 20 and are connected in two inner ladder legs 30, constitute manhole ladder 3 thus.Like this, whole manhole ladder 3 is just can be outside up and down in the ladder 2, and and the outer pedal 21a～21c that is located between two outer ladder legs 20 do not interfere with each other.Locking position outside manhole ladder 3 is implemented in retaining mechanism 4 on the ladder 2.When relativeness that manhole ladder 20 and outer ladder 30 are in as shown in Figure 6, pedal 31a just overlaps pedal 21c position outward with outer terraced 20 the third level in the first order of manhole ladder 3, forms a big pedal jointly.And, manhole ladder 3 one-level that can descend, overlap with the outer pedal 21c position of the third level of outer ladder 2 with pedal 31b in the second level, one-level more more can descend, be hidden in fully in the outer ladder 2, form folded position as shown in Figure 7, this moment, three interior pedal 31a～31c overlapped with three outer pedal 21a～21c respectively.
Outer ladder leg of the present utility model is owing to have the existence of the fixed head 204 of big thickness, making that outer pedal 21 is corresponding can have thickness greatly, therefore its comfort level of trampling and intensity are obviously promoted, and compare the outstanding design of the sort of outer pedal in the past, the utility model will outer pedal be located at the inboard of outer ladder leg, make the ladder overall appearance succinct, and take less space.
Above embodiment explanation only is preferred embodiment explanation of the present utility model, is not in order to limit the utility model.Those skilled in the art can make the replacement and the modification of other all equivalence according to the foregoing description explanation of the present utility model.Yet these are replaced and revise 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 (5)
1. the outer ladder leg of a lift, it is characterized in that, described outer ladder leg comprises a hollow body, side opening in the described body, body has fixed head to the bending of opening opposite side port in a side ports of described opening, have the gap between the opposite side port of described fixed head and described opening, form a groove.
2. the outer ladder leg of lift as claimed in claim 1 is characterized in that, described fixed head is provided with positioning convex strip at a side channel mouth place of described groove.
3. the outer ladder leg of lift as claimed in claim 2 is characterized in that, described positioning convex strip is provided with continuously along described fixed head.
4. the outer ladder leg of lift as claimed in claim 2 is characterized in that, described positioning convex strip is provided with at interval along described fixed head.
5. the outer ladder leg of lift as claimed in claim 1 is characterized in that, described body is provided with reinforcing rib at described opening opposite side port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720066887 CN200996269Y (en) | 2007-01-31 | 2007-01-31 | External ladder leg for liftable ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720066887 CN200996269Y (en) | 2007-01-31 | 2007-01-31 | External ladder leg for liftable ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200996269Y true CN200996269Y (en) | 2007-12-26 |
Family
ID=38994699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720066887 Expired - Lifetime CN200996269Y (en) | 2007-01-31 | 2007-01-31 | External ladder leg for liftable ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200996269Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982460A (en) * | 2021-10-25 | 2022-01-28 | 安徽信息工程学院 | Telescopic multi-section ascending ladder structure |
-
2007
- 2007-01-31 CN CN 200720066887 patent/CN200996269Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982460A (en) * | 2021-10-25 | 2022-01-28 | 安徽信息工程学院 | Telescopic multi-section ascending ladder structure |
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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 |