CN2108164U - Telescopic ladder - Google Patents
Telescopic ladder Download PDFInfo
- Publication number
- CN2108164U CN2108164U CN91231727U CN91231727U CN2108164U CN 2108164 U CN2108164 U CN 2108164U CN 91231727 U CN91231727 U CN 91231727U CN 91231727 U CN91231727 U CN 91231727U CN 2108164 U CN2108164 U CN 2108164U
- Authority
- CN
- China
- Prior art keywords
- ladder
- expansion coupling
- bar
- joint
- cleat stanchion
- 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.)
- Granted
Links
- 230000008878 coupling Effects 0.000 claims description 32
- 238000010168 coupling process Methods 0.000 claims description 32
- 238000005859 coupling reaction Methods 0.000 claims description 32
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
- E06C1/125—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic with tubular longitudinal members nested within each other
Landscapes
- Ladders (AREA)
Abstract
The utility model relates to a telescopic ladder comprising a lower ladder joint and a telescopic joint. The two ladder poles of the telescopic joint are respectively inserted in the two ladder poles of the lower ladder joint. The telescopic joint is provided with a movable ladder rod and a fixed ladder rod. The movable ladder rod and a ladder pole are the connecting construction of a sliding groove type or a sliding sleeve type. The insertion portion of the ladder pole of the telescopic joint is provided with a positioning pin. The ladder pole of the lower ladder joint is provided with a corresponding positioning hole. A ladder feet point is provided with a non-skid hinge pin seat. The telescopic ladder adopts an inserting type telescopic structure. The utility model has the advantages of simple structure, portability, lightness, convenient transport and storage and convenient and safe use.
Description
The utility model relates to a kind of telescopic helper, is particularly useful for indoor and family.
Existing extension ladder is pulley, the cable-styled structure of chain.By pulley, the pulling chain cable stretches expansion coupling, shrinks during counter drawing.The cable-styled extension ladder complex structure of chain, thick is confined to industrial use.
The utility model provides a kind of male telescope ladder, and expansion coupling directly inserts the bottom section of ladder, and is simple in structure, light and handy, easy to use.
The technical solution of the utility model is as follows:
Fig. 1 is a schematic structure diagram, and Fig. 2 is the I portion structure enlarged drawing of Fig. 1, and Fig. 3 is the II portion structure enlarged drawing of Fig. 1, Fig. 4 be the B of Fig. 3 to view, Fig. 5 is the A-A sectional drawing of Fig. 2.
The utility model is made of lower section of ladder 1 and telescopic joint 2, and two cleat stanchions of telescopic joint 2 are inserted in respectively in the two cleat stanchion epimeres of lower section of ladder; On the lower section of ladder terraced bar is arranged, autostairs bar 3 and fixed ladder bar 4 are arranged on the telescopic joint 2, the cleat stanchion inserting paragraph of telescopic joint 2 has alignment pin 6, and corresponding locating hole 7 is arranged on the cleat stanchion of lower section of ladder.
Autostairs bar 3 on the telescopic joint 2 and the two kinds of versions that are connected with of cleat stanchion. The one, the chute-type syndeton namely has chute 5 on two cleat stanchions of telescopic joint, and autostairs bar two ends section lays respectively in the chute on two cleat stanchions. Under external force, the autostairs bar can move in chute. Another kind is the sleeve type syndeton, sees Fig. 6, Fig. 7, namely establishes sliding sleeve 8 and sliding sleeve alignment pin 9 on two cleat stanchions of telescopic joint, and autostairs bar two ends are connected with sliding sleeve respectively.
Fig. 1 is the extended configuration of extension ladder.During contraction, press alignment pin 6, pin rod is recessed locating hole, drop-down expansion coupling, and in the section of ladder cleat stanchion, top mobile ladder bar was gone up in following section of ladder upper end, makes it along moving on the chute under the expansion coupling cleat stanchion inserted, and extension ladder promptly shrinks.Pull out expansion coupling and corresponding location and be stable state shown in Figure 1.When the mobile ladder bar is the sleeve type connection, also need press the sliding sleeve alignment pin, sliding sleeve is moved along cleat stanchion.In addition, when expansion coupling cleat stanchion when down section of ladder is inserted to sliding sleeve alignment pin place, also need press pin rod, so that make expansion coupling continue to insert down.
Expansion coupling of the present utility model has a joint at least, also can be more piece, Figure 8 shows that two expansion coupling structures, and expansion coupling 11 is following section of ladder with respect to expansion coupling 12, and Fig. 9 is the contraction state of two expansion coupling structures.In addition, the mobile ladder bar on the expansion coupling can be a bar, also can be many bars.
Embodiment.
Embodiment 1.The structure of embodiment 1 is provided by Fig. 1 to Fig. 5.Alignment pin 6 is a spring positioning pin, and spring 13 is packed into by the cleat stanchion port by holder, and pin 14 is established in expansion coupling cleat stanchion lower end, to improve intensity.For guaranteeing down the requisite space position, connection bearing pin top of section of ladder ladder bar, the inboard processing plane C of expansion coupling cleat stanchion sees Fig. 5.Expansion coupling has mobile ladder bar, each bar of fixed ladder bar, and the mobile ladder bar is that chute-type is connected with cleat stanchion, and installing hole 15 is established in chute 5 upper ends, so that the two ends section of mobile ladder bar is packed into.In addition, extension ladder upper and lower end cleat stanchion place establishes and strengthens gusset 16.Present embodiment adopts aluminum alloy material.
Embodiment 2.Fig. 6, Fig. 7 are example structure figure, and Fig. 7 is the III portion enlarged drawing of Fig. 6.The expansion coupling of present embodiment is a joint, and two bar mobile ladder bars are arranged on the expansion coupling, and following mobile ladder bar is that sliding sleeve is connected with cleat stanchion; Last mobile ladder bar is that chute-type is connected with cleat stanchion, and syndeton is with shown in Figure 3.When the mobile ladder bar on the expansion coupling was two bars, following mobile ladder bar was generally got the sliding sleeve connected mode, and last mobile ladder bar is generally got chute-type and connected.Sliding sleeve alignment pin 9 is a spring positioning pin.The foot of ladder place of present embodiment establishes hinge pin seat 17, and this seat is that hinge pin is connected with cleat stanchion, and when cleat stanchion tilted, this bottom surface was a plane contact with ground still, makes ladder stabilizer.For preventing that ladder from sliding, hinge pin seat bottom surface dress rubber pad 18.Other are with embodiment 1.
Embodiment 3.Fig. 8 is the shape assumption diagram of embodiment 3, and Fig. 9 shrinks the back state for it.Present embodiment has two joint expansion couplings, and expansion coupling 11 is section of ladder down with respect to expansion coupling 12, the connected structure of two expansion couplings, and the connected structure of expansion coupling 11 and following section of ladder is as shown in Figure 2.Having only a bar mobile ladder bar on the expansion coupling of present embodiment, is that chute-type is connected with cleat stanchion.The foot of ladder place establishes hinge pin seat, with embodiment 2.Other are with embodiment 1.
The utility model is the male telescope structure, and is simple in structure, easy to use, flexibly light and handy, is convenient to carrying, seasoning, and hinge pin seat is set, and can prevent sliding stop, safe and reliable.
Claims (7)
1, a kind of extension ladder, it is characterized in that by section of ladder 1 and expansion coupling 2 constitute down, two cleat stanchions of described expansion coupling are inserted in down respectively in the two cleat stanchion epimeres of section of ladder, on the following section of ladder terraced bar is arranged, mobile ladder bar 3 and fixed ladder bar 4 are arranged on the expansion coupling 2, the cleat stanchion of expansion coupling 2 inserts section alignment pin 6, and positioning hole corresponding 7 is arranged on the cleat stanchion of following section of ladder.
2, according to the described extension ladder of claim 1, what it is characterized in that mobile ladder bar on the expansion coupling 2 and cleat stanchion is connected to chute or shift sleeve structure.
3,, it is characterized in that expansion coupling 2 has a joint at least according to claim 1 or 2 described extension ladders.
4,, it is characterized in that the alignment pin 6 on the expansion coupling cleat stanchion is spring positioning pin according to claim 1 or 2 described extension ladders.
5,, it is characterized in that the cleat stanchion upper and lower end of extension ladder has the gusset 16 of reinforcement according to the described extension ladder of claim 1.
6,, it is characterized in that there is hinge pin seat 17 at the foot of ladder place according to the described extension ladder of claim 1.
7,, it is characterized in that there is rubber pad 18 bottom surface of hinge pin seat 17 according to the described extension ladder of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91231727U CN2108164U (en) | 1991-12-23 | 1991-12-23 | Telescopic ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91231727U CN2108164U (en) | 1991-12-23 | 1991-12-23 | Telescopic ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2108164U true CN2108164U (en) | 1992-06-24 |
Family
ID=4936902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91231727U Granted CN2108164U (en) | 1991-12-23 | 1991-12-23 | Telescopic ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2108164U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227539A (en) * | 2008-11-28 | 2011-10-26 | 马蒂纳斯尼尔森Aps公司 | Collapsible ladder |
| CN103445914A (en) * | 2013-09-05 | 2013-12-18 | 河南科技大学第一附属医院 | Telescopic stretcher |
| CN105857517A (en) * | 2016-05-29 | 2016-08-17 | 浙江国际海运职业技术学院 | Multifunctional retractable ladder for ships |
| CN110388040A (en) * | 2019-07-06 | 2019-10-29 | 北京世纪金鳄建筑装饰有限公司 | A kind of mobile steel builder's jack device |
| EP3617436A1 (en) * | 2018-08-29 | 2020-03-04 | Altrex B.V. | Telescopic ladders |
-
1991
- 1991-12-23 CN CN91231727U patent/CN2108164U/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227539A (en) * | 2008-11-28 | 2011-10-26 | 马蒂纳斯尼尔森Aps公司 | Collapsible ladder |
| CN103445914A (en) * | 2013-09-05 | 2013-12-18 | 河南科技大学第一附属医院 | Telescopic stretcher |
| CN103445914B (en) * | 2013-09-05 | 2016-07-06 | 河南科技大学第一附属医院 | A kind of Telescopic stretcher |
| CN105857517A (en) * | 2016-05-29 | 2016-08-17 | 浙江国际海运职业技术学院 | Multifunctional retractable ladder for ships |
| EP3617436A1 (en) * | 2018-08-29 | 2020-03-04 | Altrex B.V. | Telescopic ladders |
| CN110388040A (en) * | 2019-07-06 | 2019-10-29 | 北京世纪金鳄建筑装饰有限公司 | A kind of mobile steel builder's jack device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |