CN202300167U - Ratchet type telescopic ladder - Google Patents
Ratchet type telescopic ladder Download PDFInfo
- Publication number
- CN202300167U CN202300167U CN2011204248794U CN201120424879U CN202300167U CN 202300167 U CN202300167 U CN 202300167U CN 2011204248794 U CN2011204248794 U CN 2011204248794U CN 201120424879 U CN201120424879 U CN 201120424879U CN 202300167 U CN202300167 U CN 202300167U
- Authority
- CN
- China
- Prior art keywords
- ladder
- ratchet
- shaft
- type telescopic
- stay cord
- 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 belongs to a living and construction elevation appliance, and particularly relates to a ratchet type telescopic ladder, which comprises a lower ladder (1), an elastic stop block (2), a stay cord (3), pulleys (4), an extending ladder (5), and countersunk head screws (10), wherein the two sides of the upper end of the extending ladder (5) are respectively and fixedly provided with an elastic folding mechanism (6) through the countersunk head screws (10), and a rotating shaft (7) and a ratchet shaft (8) are respectively arranged on the elastic folding mechanism (6); and an unidirectionally rotated ratchet (9) penetrates through the ratchet shaft (8). The ratchet type telescopic ladder is directly leaned against the wall, and the stay cord is pulled, so that the extending ladder extends out; and the downslide of the ladder is avoided in a climbing process by the unidirectional rotation of a ratchet wheel, and the ladder can be pulled by the unidirectional rotation of the ratchet wheel to walk in carrying, so the labor intensity of the carrying is reduced.
Description
Technical field
The utility model belongs to a kind of life, the apparatus of ascending a height of constructing, particularly a kind of ratchet-type extension ladder.
Background technology
Common extension ladder is in the process of stretching out, on one side the operator need hold up ladder, Yi Bian spur rope ladder is stretched out, and it is very inconvenient to operate, and carries carrying and also relatively require great effort.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned technical deficiency, provides a kind of simple in structure, easy to use, can carry the ratchet-type extension ladder of carrying.
The technical scheme that the utility model technical solution problem adopts is: the ratchet-type extension ladder comprises descending stair, flexible block, stay cord, pulley, stretches out ladder, sunk screw; The both sides, upper end that are characterized in stretching out ladder are respectively with the fixing elastic force fold mechanism of sunk screw; Be respectively equipped with rotating shaft and ratchet shaft on the elastic force fold mechanism, install the ratchet of unidirectional rotation on the ratchet shaft.
The beneficial effect of the utility model is: the ratchet-type extension ladder directly leans against on the wall; The pulling rope will stretch out ladder and stretch out; In the climbing process, avoid the downslide of ladder by the unidirectional rotatory of ratchet; Move when carrying the also unidirectional rotation of ratchet capable of using and haul the ladder walking, reduced the labour intensity that carrying is carried.
Description of drawings
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 is a ratchet-type extension ladder structural front view.
Fig. 2 is the left side view of Fig. 1.
Among the figure, the 1-descending stair; The 2-flexible block; The 3-stay cord; The 4-pulley; 5-stretches out ladder; 6-elastic force fold mechanism; The 7-rotating shaft; The 8-ratchet shaft; The 9-ratchet; The 10-sunk screw.
The specific embodiment
Embodiment, with reference to accompanying drawing 1,2, the ladder 5 that stretches out of ratchet-type extension ladder slides at descending stair 1 inboard slideway.The crossbeam bottom upper and lower terraced 1 that stretches out ladder 5 is equipped with pulley 4 respectively on the crossbeam topmost; One end of stay cord 3 is fixed on and stretches out ladder 5 bottom on the pulley 4 on the crossbeam; Stay cord 3 other ends are wrapped on the pulley 4 on descending stair 1 the top crossbeam; Stretch out on ladder 5 the crossbeam two flexible blocks 2 are housed, flexible block 2 snaps on the crossbeam of descending stair 1 and locatees.The both sides, upper end of stretching out ladder 5 are respectively equipped with rotating shaft 7 and ratchet shaft 8 respectively with sunk screw 10 fixing elastic force fold mechanisms 6 on the elastic force fold mechanism 6, install the ratchet 9 of unidirectional rotation on the ratchet shaft 8.
The use of ratchet-type extension ladder is: during use, with the ladder rested against the wall, spur stay cord 3; Ratchet 9 unidirectional rotation on wall is rolled, and stretches out terraced 5 parts and stretches out and arrive the precalculated position, flexible block 2 is stuck on the crossbeam of descending stair 1 to locate; Firmly one press ladder; Folding 90 degree of the ratchet cantilever arm of elasticity fold mechanism 6 forward the ladder opposite side to, and ladder normally contacts with wall, and ratchet 9 can roll along the unidirectional rotation of wall and descend.When carrying, flexible block 2 is unclamped, stretch out ladder 3 withdrawals, during the withdrawal of ladder extension, can ladder be overturn, its opposite side is contacted with wall, ratchet 9 is unidirectional rotation rolling on ground, hauls the ladder walking and gets final product.
Claims (1)
1. ratchet-type extension ladder; Comprise descending stair (1), flexible block (2), stay cord (3), pulley (4), stretch out ladder (5), sunk screw (10); It is characterized in that the both sides, upper end of stretching out ladder (5) use sunk screw (10) to fix an elastic force fold mechanism (6) respectively; Be respectively equipped with rotating shaft (7) and ratchet shaft (8) on the elastic force fold mechanism (6), install the ratchet (9) of unidirectional rotation on the ratchet shaft (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204248794U CN202300167U (en) | 2011-11-01 | 2011-11-01 | Ratchet type telescopic ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204248794U CN202300167U (en) | 2011-11-01 | 2011-11-01 | Ratchet type telescopic ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202300167U true CN202300167U (en) | 2012-07-04 |
Family
ID=46369089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204248794U Expired - Fee Related CN202300167U (en) | 2011-11-01 | 2011-11-01 | Ratchet type telescopic ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202300167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817551A (en) * | 2012-09-10 | 2012-12-12 | 国家电网公司 | Multifunctional insulation ladder for power transmission and transformation construction |
-
2011
- 2011-11-01 CN CN2011204248794U patent/CN202300167U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817551A (en) * | 2012-09-10 | 2012-12-12 | 国家电网公司 | Multifunctional insulation ladder for power transmission and transformation construction |
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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: 20120704 Termination date: 20121101 |