CN201786238U - Telescopic ladder - Google Patents
Telescopic ladder Download PDFInfo
- Publication number
- CN201786238U CN201786238U CN2010202729206U CN201020272920U CN201786238U CN 201786238 U CN201786238 U CN 201786238U CN 2010202729206 U CN2010202729206 U CN 2010202729206U CN 201020272920 U CN201020272920 U CN 201020272920U CN 201786238 U CN201786238 U CN 201786238U
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- CN
- China
- Prior art keywords
- ladder
- telescopic unit
- expansion link
- cross bar
- extension ladder
- 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, which comprises a telescopic rod and a climbing ladder. The telescopic ladder is characterized in that the telescopic rod is a layering telescopic structure, the climbing ladder comprises a plurality of cross rods arranged at intervals and cross rod fixing and connecting devices which are arranged on two sides of each of the cross rods and used for connecting and fixing the cross rods, top ends of the cross rod fixing and connecting devices are hitched with the telescopic rod, and a climbing ladder fixing device is arranged at the bottom of the telescopic rod. Compared with the prior art, the telescopic ladder has the advantages of convenient and fast telescoping, stable structure and the like.
Description
One, technical field
The utility model relates to a kind of extension ladder.
Two, background technology
Along with the development of existing society, highrise building and high-rise operation increase gradually, when crisis situation and operation, need to use ladder.
Non-retractable ladder is because of transportation and deposit the comparison difficulty, is difficult to be adapted to current use.
Retractable ladder is also arranged, but generally all be to adopt two expansion links, expanding-contracting action is slow, and efficient is low, and ladder stand and expansion link are fixing insecure.
Three, summary of the invention
The utility model is at above weak point, and a kind of flexible convenience, extension ladder that safety factor is high are provided.
For achieving the above object, the utility model adopts following technological means:
A kind of extension ladder comprises expansion link, and described expansion link is a level telescopic assembling structure; Be provided with ladder stand, described ladder stand comprises some cross bars spaced apart and is positioned at the connection of cross bar both sides and the cross bar of the fixed transverse rod device that is connected, and the be connected top and the expansion link of device of cross bar articulates, and the bottom of expansion link is provided with the ladder stand fastening devices.
Above-mentioned extension ladder, the flexible sleeve type expansion link of level comprises the big or small from outside to inside telescopic unit ladder that successively decreases step by step, be provided with between the adjacent two-stage telescopic unit ladder and pull out a gripping mechanism, a described gripping mechanism of pulling out comprises fairlead, level telescopic unit ladder bottom inside in described fairlead places, be provided with elastomeric element in the fairlead, be provided with the chucking post in elastomeric element two ends, the fairlead, outer level telescopic unit ladder top is provided with the chucking hole corresponding with tightening post.
Above-mentioned extension ladder, the mode of articulating are that the be connected top of device of cross bar is provided with hook, and interior level telescopic unit masthead end is provided with and articulates bar, and the two ends that articulate bar are provided with and link up with the mount hole that cooperates.
Above-mentioned extension ladder, the two ends of described elastomeric element are provided with joint pin, and joint pin is connected with the chucking male screw.
Above-mentioned extension ladder, described chucking post are positioned at telescopic unit ladder inside part and are provided with envelope shelves dop.
Above-mentioned extension ladder, described expansion link are cylindric, are provided with telescopic unit ladder anti-rotation devices at different levels in the outermost level telescopic unit ladder, and described anti-rotation device contains the draw-in groove that is opening port from top to bottom, and the sleeve of telescopic unit ladders at different levels is positioned at draw-in groove.
Above-mentioned extension ladder, described expansion link bottom is provided with the ladder stand fastening devices, and described fastening devices one end is fixed on the ladder stand, and the other end is fixed on the expansion link.
Above-mentioned extension ladder, cross bar are a tubular structure, and the cross bar device that is connected is the cross bar static line, and described fastening devices is an inserted link that cooperates with the tubulose cross bar.
Above-mentioned extension ladder, at least one end of two links of described fastening devices is adjustable connection.
Above-mentioned extension ladder, described extension ladder is provided with felt pad, and described felt pad is positioned at the bottom of outermost level telescopic unit ladder.
The beneficial effects of the utility model show:
The utility model mainly contains two parts and forms: expansion link and ladder stand, and expansion link is made up of a plurality of telescopic unit bars that can slide mutually, and the top of ladder stand is removable to be fixed on the interior grade of unit of expansion link.
Pull out a gripping mechanism in the expansion link between the adjacent two-stage telescopic unit ladder, can tighten, become not fixed bar slidably after expansion link is stretched expansion link; An interior level expansion link outwards slides, and when tightening post and tightening the hole at once, the chucking post at two ends is protruding automatically under the effect of elastomeric element, passes to tighten the hole, thereby reaches the purpose that chucking is fixed.
For preventing that tightening post all passes the chucking hole, can adopt following dual mode: the chucking post is positioned at telescopic unit bar inside part and is provided with envelope shelves dop;
When the telescopic unit bar is circle, must be provided with anti-rotation device in the expansion link, the utility model adopts the anti-rotation device of horn mouth form, horn mouth is up big and down small, the flexible direction in its upper edge is provided with groove, and when stretching, the telescopic unit bar of interior level can not rotate, guarantee cooperating of chucking post and chucking hole, can not occur both misplace in grade phenomenon that the unit bar is drawn out of; When expansion link falls after rise,, also can be corrected when after the telescopic unit bar is fallen bell-mouthed position, continuing to fall by the groove in it even rotate in a circumferential direction when misplacing.
But the removable enclosed hook form of fixedly selecting for use has and articulates advantages such as simple and convenient, that speed fast, articulate firmly.
The ladder stand lower end is provided with fastening devices, and fastening devices can be selected fixing position according to the height that extension ladder raises.
This fixed form adopt to be pegged graft fixing: inserted link inserts in the tubulose cross bar and is strained and fixed, fixing and separate simple and convenient, speed is fast, be particularly suited for using under the crisis situation.
It is adjustable connection that the fastening devices of ladder stand lower end has an end at least, and the adjustable tightness that can regulate ladder stand under the fixing situation in ladder stand upper end that is connected is convenient to climbing.
The insulating layer that is provided with can insulate, and prevents the injury of electricity to human body.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is for pulling out a gripping mechanism structural representation;
Fig. 3 is the anti-rotation device schematic diagram;
Fig. 4 is an inserted link inserting state schematic diagram.
Five, the specific embodiment
The utility model is described in detail the adopted prior art of not addressing below in conjunction with the drawings and specific embodiments:
A kind of extension ladder comprises expansion link 1 and ladder stand 2.
Described expansion link 1 is a level telescopic assembling structure, and it comprises the big or small from outside to inside telescopic unit ladder 11 that successively decreases step by step, and the progression of telescopic unit ladder 11 is selected according to the needs of the flexible height of extension ladder; Be provided with between the adjacent two-stage telescopic unit ladder and pull out a gripping mechanism, pull out a gripping mechanism and comprise fairlead 3, level telescopic unit ladder 11 bottom inside in fairlead 3 places, be provided with spring 4 in the fairlead 3, spring 4 two ends are connected with joint pin 5, be provided with chucking post 6 in joint pin 5 two ends, the fairlead 4, joint pin 5 is threaded with chucking post 6, and terraced 11 tops of outer level telescopic unit are provided with the chucking hole corresponding with tightening post 6; Use as expansion link is extended, and this expansion link also can be used as flagpole and uses.
Described ladder stand 2 comprises some tubulose cross bars 21 spaced apart, and be positioned at the connection of cross bar 21 both sides and the cross bar static line 22 of fixed transverse rod, ladder stand 2 upper ends can articulate with the interior level of expansion link telescopic unit bar, and the lower end of ladder stand 2 can be fixed by ladder stand fastening devices on it and expansion link lower end.The described mode that articulates is: the top of cross bar static line 22 is provided with hook 23, and interior level telescopic unit masthead end is provided with and articulates bar 12, and the two ends that articulate bar are provided with and link up with the mount hole that cooperates.Described ladder stand fastening devices one end detachable is fixed on the ladder stand, the other end is fixed on the expansion link, wherein fixed form is that an end of fastening devices is provided with inserted link 8, and inserted link 8 is provided with the groove that matches with cross bar static line 22, and inserted link 8 can be plugged in the cross bar 21; At least one end is adjustable connection in two links of fastening devices, and adjustable connection can be adopted the form of being threaded.
Described expansion link 1 is cylindric, for preventing mutual slip circumferential between the telescopic unit ladder, be provided with telescopic unit ladder anti-rotation devices 7 at different levels in the outermost level telescopic unit ladder, described anti-rotation device contains the draw-in groove that is the loudspeaker opening port from top to bottom, and the sleeve of telescopic unit ladders at different levels is positioned at draw-in groove.
Described extension ladder is provided with felt pad, and described felt pad is positioned at the bottom of outermost level telescopic unit ladder.
The top of extension ladder is provided with adaptor plug, but hook, card, slides on high ceases to be busy, and the bottom is provided with the ladder stand holding tank.
During use, at first ladder stand 2 is taken out from the holding tank of being located at the expansion link lower end, hook 23 with the top of cross bar static line 22 is articulated in articulating on the bar 12 of interior level telescopic unit masthead end then, from inside to outside spur the telescopic unit ladder then in turn, be stretched to the chucking post and stretch out till the chucking hole.
When extension ladder is stretched to desired height, inserted link 8 is inserted in the afterbody cross bar of slinging, the device that is tightened then reaches the effect of tension ladder stand; So far extension ladder can be gone up the people and climbs.
After using end, at first unclamp fastening devices, inserted link 8 is extracted out from cross bar 21, fill in the telescopic unit ladder by tightening post 6 earlier on following the reaching then, drop-down then telescopic unit ladder is filled in it in expansion link of its upper level.After the telescopic unit bar is all regained, the hook 23 of ladder stand is taken off, ladder stand 2 is placed in the holding tank to get final product then.
Claims (10)
1. an extension ladder comprises expansion link, it is characterized in that, described expansion link is a level telescopic assembling structure; Be provided with ladder stand, described ladder stand comprises some cross bars spaced apart and is positioned at the connection of cross bar both sides and the cross bar of the fixed transverse rod device that is connected, and the be connected top and the expansion link of device of cross bar articulates, and the bottom of expansion link is provided with the ladder stand fastening devices.
2. extension ladder according to claim 1, it is characterized in that, the flexible sleeve type expansion link of described level comprises the big or small from outside to inside telescopic unit ladder that successively decreases step by step, be provided with between the adjacent two-stage telescopic unit ladder and pull out a gripping mechanism, a described gripping mechanism of pulling out comprises fairlead, level telescopic unit ladder bottom inside in described fairlead places, be provided with elastomeric element in the fairlead, be provided with the chucking post in elastomeric element two ends, the fairlead, outer level telescopic unit ladder top is provided with the chucking hole corresponding with tightening post.
3. extension ladder according to claim 1 is characterized in that, the described mode that articulates is that the be connected top of device of cross bar is provided with hook, and interior level telescopic unit masthead end is provided with and articulates bar, and the two ends that articulate bar are provided with and link up with the mount hole that cooperates.
4. extension ladder according to claim 1 and 2 is characterized in that the two ends of described elastomeric element are provided with joint pin, and joint pin is connected with the chucking male screw.
5. extension ladder according to claim 1 and 2 is characterized in that, described chucking post is positioned at telescopic unit ladder inside part and is provided with envelope shelves dop.
6. extension ladder according to claim 1 and 2, it is characterized in that, described expansion link is cylindric, be provided with telescopic unit ladder anti-rotation devices at different levels in the outermost level telescopic unit ladder, described anti-rotation device contains the draw-in groove that is opening port from top to bottom, and the sleeve of telescopic unit ladders at different levels is positioned at draw-in groove.
7. extension ladder according to claim 1 and 2 is characterized in that, described expansion link bottom is provided with the ladder stand fastening devices, and described fastening devices one end is fixed on the ladder stand, and the other end is fixed on the expansion link.
8. extension ladder according to claim 1 and 2 is characterized in that, cross bar is a tubular structure, and the cross bar device that is connected is the cross bar static line, and described fastening devices is an inserted link that cooperates with the tubulose cross bar.
9. extension ladder according to claim 8 is characterized in that, at least one end of two links of described fastening devices is adjustable connection.
10. extension ladder according to claim 1 is characterized in that described extension ladder is provided with felt pad, and described felt pad is positioned at the bottom of outermost level telescopic unit ladder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202729206U CN201786238U (en) | 2010-07-23 | 2010-07-23 | Telescopic ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202729206U CN201786238U (en) | 2010-07-23 | 2010-07-23 | Telescopic ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786238U true CN201786238U (en) | 2011-04-06 |
Family
ID=43818205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202729206U Expired - Fee Related CN201786238U (en) | 2010-07-23 | 2010-07-23 | Telescopic ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786238U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476757A (en) * | 2017-08-31 | 2017-12-15 | 北京金锐世纪高科技有限公司 | Climb equipment hanger |
| CN109184547A (en) * | 2018-09-29 | 2019-01-11 | 孟祥山 | High bar climbing device |
-
2010
- 2010-07-23 CN CN2010202729206U patent/CN201786238U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476757A (en) * | 2017-08-31 | 2017-12-15 | 北京金锐世纪高科技有限公司 | Climb equipment hanger |
| CN109184547A (en) * | 2018-09-29 | 2019-01-11 | 孟祥山 | High bar climbing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20140723 |
|
| EXPY | Termination of patent right or utility model |