CN201386499Y - Straight-shape and Y-shape change staircase - Google Patents
Straight-shape and Y-shape change staircase Download PDFInfo
- Publication number
- CN201386499Y CN201386499Y CN200920065159U CN200920065159U CN201386499Y CN 201386499 Y CN201386499 Y CN 201386499Y CN 200920065159 U CN200920065159 U CN 200920065159U CN 200920065159 U CN200920065159 U CN 200920065159U CN 201386499 Y CN201386499 Y CN 201386499Y
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- China
- Prior art keywords
- ladder
- fixed
- fixed head
- band
- lift
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Abstract
The utility model relates to a straight-shape and Y-shape change staircase, comprising: a fixing ladder, a lifting ladder and a positioning device. The lifting ladder is connected with the fixing ladder in slide way, the lifting ladder slides with respect to the fixing ladder, rotation fixing devices are arranged at the top end of the fixing ladder and the bottom end of the lifting ladder to form a rotational connection, each rotation fixing device comprises a plug pin or bolt and a fixing plate with through holes, fixing plates with through holes are fixedly arranged at the top end of the fixing ladder and the bottom end of the lifting ladder, and plug pin holes corresponding to the through holes on the fixing plates with through holes are arranged on the fixing ladder and the lifting ladder. The utility model has the advantages that the structure is simple and the free change between the straight ladder and the Y-shaped ladder is achieved. The utility model is suitable for industrial production.
Description
Technical field
The utility model relates to a kind of multipurpose stair, especially a kind of word herringbone conversion stair.
Background technology
Early stage double ladder comprises that two fixed ladders and are located at the positioner between two fixed ladders, constitutes between this two fixed ladders top to be rotatably connected, and the expansible location is to form double ladder or to amount to the location to form yi shaped ladder between two fixed ladders.This double ladder is that free-standing ladder is widely used owing to its stability, but can not be as list lifting and stretch out in the fixed ladder top with a word lift owing to amount to the yi shaped ladder that forms after the location when two fixed ladders, make that then adjustable height is little, the height adjustment range of whole double ladder or yi shaped ladder is little, the ladder application places in height is subjected to certain limitation, can't support the upper end and the place that can't use yi shaped ladder for the work that need change at high and low layered enterprising road wheel and lifting yi shaped ladder, often need be with two stair to run, very inconvenient.
The utility model content
The purpose of this utility model be to overcome the deficiency of prior art and provide a kind of simple in structure, can be between yi shaped ladder and double ladder the word herringbone conversion stair of fast free conversion.
The purpose of this utility model is achieved by following technical proposals:
A kind of word herringbone conversion stair, comprise fixed ladder, lift, positioner, described lift and described fixed ladder are slidingly connected, and described lift slides with respect to described fixed ladder, and the top of described fixed ladder and the bottom of described lift are provided with rotational fixation device formation and are rotationally connected.
As a kind of mode of the present utility model, described rotational fixation device comprises the fixed head of latch or screw, band through hole, be fixed with the fixed head of described band through hole on described fixed ladder top and the described lift bottom, described fixed ladder and described lift are provided with the corresponding pin hole of through hole on the fixed head with described band through hole.
As another kind of mode of the present utility model, described rotational fixation device comprises the fixed head of being with groove, the fixed head of the band projection that is complementary with the fixed head of described band groove, two inboards on described fixed ladder top are fixed with the fixed head of band groove, are fixed with the fixed head of described band projection on two outsides of described lift bottom.
As another kind of mode of the present utility model, described rotational fixation device comprises the fixed head of being with groove, the fixed head of the band projection that is complementary with the fixed head of described band groove, two inboards on described fixed ladder top are fixed with the fixed head of band projection, are fixed with the fixed head of described band groove on two outsides of described lift bottom.
The utility model adopts such scheme: lift relative fixed ladder slides, when the bottom of lift during near the top of fixed ladder, the rotational fixation device makes the bottom of lift and the top of fixed ladder constitute rotating the connection, make that the expansible location is to form double ladder between fixed ladder and the lift, so both can keep yi shaped ladder that the advantage of high height is arranged, can convert the higher double ladder of stability again to, and change very convenient.
In sum, advantage such as that described utility model---a kind of word herringbone conversion stair have is simple in structure, can freely change between yi shaped ladder and double ladder is applicable to industrial production.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation in the utility model implementation process.
Fig. 3 is the structural representation in the utility model implementation process.
Fig. 4 is the structural representation of the utility model rotational fixation device.
Fig. 5 is another structural representation of the utility model rotational fixation device.
Fig. 6 is the third structural representation of the utility model rotational fixation device.
In the accompanying drawing in 1 to 6: fixed head, the 6-positioner of the fixed head of 1-fixed ladder, 2-lift, 3-band groove, the fixed head of 4-band projection, 5-band through hole.
The specific embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of word herringbone conversion stair in detail.
As shown in Figure 1, 2, 3, a kind of word herringbone conversion stair, comprise fixed ladder 1, lift 2, positioner 6, described lift 2 is slidingly connected with described fixed ladder 1, described lift 2 slides with respect to described fixed ladder 1, and the top of described fixed ladder 1 and the bottom of described lift are provided with rotational fixation device formation and are rotationally connected.
As shown in Figure 4, as a kind of mode of the present utility model, described rotational fixation device comprises the fixed head 5 of latch or screw, band through hole, be fixed with the fixed head 5 of described band through hole on described fixed ladder 1 top and described lift 2 bottoms, described fixed ladder 1 and described lift 2 are provided with the corresponding pin hole of through hole on the fixed head 5 with described band through hole.Upwards slide into the top of fixed ladder 1 when lift 2 after, make that the through hole of fixed head 5 of the band through hole on fixed head 5 and the fixed ladder of the band through hole on the lift 2 is relative, after allowing latch or screw are inserted from pin hole, make that lift 2 and fixed ladder 1 are that rotating shaft is freely rotated with latch or screw, with after lift 2 and the fixed ladder 1 rotation adjustment angle, fixing by positioner 6 more at last.
Shown in Fig. 5,6, as another kind of mode of the present utility model, described rotational fixation device comprises the fixed head 3 of being with groove, the fixed head 4 of the band projection that is complementary with the fixed head 3 of described band groove, two inboards on described fixed ladder 1 top are fixed with the fixed head 3 of band groove, be fixed with the fixed head 4 of described band projection on two outsides of described lift 2 bottoms, two inboards on perhaps described fixed ladder 1 top are fixed with the fixed head 4 of band projection, are fixed with the fixed head 3 of described band groove on two outsides of described lift 2 bottoms.Upwards slide into the top of fixed ladder 1 when lift 2 after, projection on the fixed head 4 of band projection slides in the groove in the fixed head 3 of band groove and engages, make the fixed head 4 of band projection to rotate relative to fixed head 3 with groove, formation is rotationally connected, with after lift 2 and the fixed ladder 1 rotation adjustment angle, fixing by positioner 6 more at last.
Claims (4)
1, word herringbone conversion stair, comprise fixed ladder (1), lift (2), positioner (6), described lift (2) is slidingly connected with described fixed ladder (1), it is characterized in that: described lift (2) slides with respect to described fixed ladder (1), and the bottom of the top of described fixed ladder (1) and described lift (2) is provided with rotational fixation device formation and is rotationally connected.
2, word herringbone conversion stair according to claim 1, it is characterized in that: described rotational fixation device comprises the fixed head (5) of latch or screw, band through hole, be fixed with the fixed head (5) of described band through hole on described fixed ladder (1) top and described lift (2) bottom, described fixed ladder (1) and described lift (2) are provided with the fixed head (5) of described band through hole and go up the corresponding pin hole of through hole.
3, word herringbone conversion stair according to claim 1, it is characterized in that: described rotational fixation device comprises the fixed head (3) of being with groove, the fixed head (4) of the band projection that is complementary with the fixed head (3) of described band groove, two inboards on described fixed ladder (1) top are fixed with the fixed head (3) of band groove, are fixed with the fixed head (4) of described band projection on two outsides of described lift (2) bottom.
4, word herringbone conversion stair according to claim 1, it is characterized in that: described rotational fixation device comprises the fixed head (3) of being with groove, the fixed head (4) of the band projection that is complementary with the fixed head (3) of described band groove, two inboards on described fixed ladder (1) top are fixed with the fixed head (4) of band projection, are fixed with the fixed head (3) of described band groove on two outsides of described lift (2) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920065159U CN201386499Y (en) | 2009-04-28 | 2009-04-28 | Straight-shape and Y-shape change staircase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920065159U CN201386499Y (en) | 2009-04-28 | 2009-04-28 | Straight-shape and Y-shape change staircase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386499Y true CN201386499Y (en) | 2010-01-20 |
Family
ID=41579031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920065159U Expired - Fee Related CN201386499Y (en) | 2009-04-28 | 2009-04-28 | Straight-shape and Y-shape change staircase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201386499Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696677A (en) * | 2012-09-27 | 2014-04-02 | 赵百华 | Multi-purpose ladder |
-
2009
- 2009-04-28 CN CN200920065159U patent/CN201386499Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696677A (en) * | 2012-09-27 | 2014-04-02 | 赵百华 | Multi-purpose ladder |
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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: 20100120 Termination date: 20120428 |