CN203547504U - Telescopic ladder - Google Patents

Telescopic ladder Download PDF

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Publication number
CN203547504U
CN203547504U CN201320657757.9U CN201320657757U CN203547504U CN 203547504 U CN203547504 U CN 203547504U CN 201320657757 U CN201320657757 U CN 201320657757U CN 203547504 U CN203547504 U CN 203547504U
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CN
China
Prior art keywords
ladder
fixed
slideway
rolling
sliding
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.)
Active
Application number
CN201320657757.9U
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Chinese (zh)
Inventor
孙兵
张利
李孟兴
张永山
季宁
宋小光
高同武
张炳珍
张玉山
刘德才
袁春雨
赵李斌
杨勇
高雅龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Chengde Power Supply Co of State Grid Jibei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Chengde Power Supply Co of State Grid Jibei Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, Chengde Power Supply Co of State Grid Jibei Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201320657757.9U priority Critical patent/CN203547504U/en
Application granted granted Critical
Publication of CN203547504U publication Critical patent/CN203547504U/en
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Abstract

The utility model discloses a telescopic ladder. The telescopic ladder comprises a fixed ladder, a sliding way, a sliding ladder and a cross beam fixing device, wherein the sliding way is fixed on the fixed ladder; the sliding ladder is arranged in the sliding way; the cross beam fixing device is used for fixedly connecting a cross beam of the fixed ladder with a cross beam of the sliding ladder. In use, the sliding ladder slides downwards in the sliding way; when a total height of the sliding ladder and the fixed ladder reaches a required height, the cross beam fixing device is used for fixedly connecting the cross beam of the fixed ladder with the cross beam of the sliding ladder, so that the sliding ladder and the fixed ladder are fixed relatively; due to the adoption of a sliding way manner, the self height can be adjusted quickly; meanwhile, the cross beam fixing device is used for fixedly connecting the cross beam of the fixed ladder with the cross beam of the sliding ladder, so that the telescopic ladder is good in fixing effect and firm.

Description

A kind of extension ladder
Technical field
The utility model relates to cat ladder technical field, relates in particular to a kind of extension ladder.
Background technology
In power transmission and distribution technical field, insulating ladder is altitude hot-line operation necessary tool.In prior art, for the height that changes terraced body is to adapt to different working spaces, the form of structure of its ladder mainly contains conventional elevator, lift, A font ladder etc.Conventional elevator is wherein all generally to rely on or be connected on cross-arm to use, highly especially limited; Lift is mechanization facility, although highly adjustable, field of employment limited space system; Although and less being restricted in A font ladder field of employment, because himself is highly limited, generally can not exceed 12 meters, therefore application space is also limited.Also have a kind of two A font combination insulating ladder, although this ladder can strengthen the height of terraced body, during due to use, must lean on the two joint ladder alignment pins of body and the dismounting again in hole combination just can realize, therefore use very inconvenient.
Therefore, how providing a kind of extension ladder, to realize the quick adjustment of oneself height, is current those skilled in the art technical problems urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of extension ladder, to realize the quick adjustment of oneself height.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of extension ladder, comprise fixed ladder, slideway, side-rolling ladder and beams fixture, wherein, described slideway is fixed on described fixed ladder, described side-rolling ladder is arranged in described slideway, and described beams fixture is fixedly connected with the crossbeam of the crossbeam of described fixed ladder and described side-rolling ladder.
Preferably, above-mentioned slideway is fixedly clamped on the longeron of described fixed ladder by clamping device.
Preferably, above-mentioned extension ladder also comprises fixed pulley, and the setting corresponding to described slideway of described fixed pulley, described in described side-rolling ladder sandwiched between fixed pulley and described slideway.
Preferably, above-mentioned slideway comprises the first slideway and the second slideway, and described the first slideway is coated and fixed on the longeron of described fixed ladder by bolt, and described bolt is through the longeron of described the first slideway and described fixed ladder.
Preferably, above-mentioned extension ladder also comprises fixed pulley, the setting corresponding to described slideway of described fixed pulley, and between fixed pulley and described slideway, described fixed pulley is fixed on described bolt described in described side-rolling ladder sandwiched.
Preferably, above-mentioned beams fixture has first and buckles with second and buckle, and described first buckles and described second leave gap between buckling.
The extension ladder that the utility model provides, comprise fixed ladder, slideway, side-rolling ladder and beams fixture, wherein, described slideway is fixed on described fixed ladder, described side-rolling ladder is arranged in described slideway, and described beams fixture is fixedly connected with the crossbeam of the crossbeam of described fixed ladder and described side-rolling ladder.During use, by side-rolling ladder down sliding from slideway, when the overall height of side-rolling ladder and fixed ladder reaches after the height needing, by beams fixture, the crossbeam of the crossbeam of fixed ladder and side-rolling ladder is fixedly connected with, realizes the relative fixing of side-rolling ladder and fixed ladder, adopt the mode of slideway can realize the quick adjustment of oneself height, and, by beams fixture, the crossbeam of the crossbeam of fixed ladder and side-rolling ladder is fixedly connected with, fixed effect is better, more firm.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the extension ladder that Fig. 1 provides for the utility model embodiment;
The sectional structure schematic diagram of the extension ladder that Fig. 2 provides for the utility model embodiment.
In upper Fig. 1 and Fig. 2:
Fixed ladder 1, side-rolling ladder 2, slideway 3, beams fixture 4, fixed pulley 5, the first slideway 6, the second slideway 7, bolt 8.
The specific embodiment
The utility model embodiment provides a kind of extension ladder, to realize the quick adjustment of oneself height.
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1 and Fig. 2, the structural representation of the extension ladder that Fig. 1 provides for the utility model embodiment; The sectional structure schematic diagram of the extension ladder that Fig. 2 provides for the utility model embodiment.
The extension ladder that the utility model embodiment provides, comprise fixed ladder 1, slideway 3, side-rolling ladder 2 and beams fixture 4, wherein, slideway 3 is fixed on fixed ladder 1, side-rolling ladder 2 is arranged in slideway 3, and beams fixture 4 is fixedly connected with the crossbeam of fixed ladder 1 with the crossbeam of side-rolling ladder 2.During use, by side-rolling ladder 2 down sliding from slideway 3, when side-rolling ladder 2 and the overall height of fixed ladder 1 reach after the height needing, by beams fixture 4, the crossbeam of fixed ladder 1 is fixedly connected with the crossbeam of side-rolling ladder 2, realizes the relative fixing of side-rolling ladder 2 and fixed ladder 1, adopt the mode of slideway 3 can realize the quick adjustment of oneself height, and, by beams fixture 4, the crossbeam of fixed ladder 1 is fixedly connected with the crossbeam of side-rolling ladder 2, fixed effect is better, more firm.And fixed ladder 1 can be conventional elevator, when realizing highly adjusting, be not subject to spatial limitation.
Wherein, slideway 3 is fixedly clamped on the longeron of fixed ladder 1 by clamping device.While arranging, can make the width of side-rolling ladder 3 be less than fixed ladder 1, facilitate the slip of side-rolling ladder 1, so now, slideway 3 can be arranged on to the inner side of fixed ladder 1, slideway 3 is two, lay respectively on two longerons of fixed ladder 1, then limit slippage ladder 2 can only slide up and down, slideway 3 is fixedly clamped on the longeron of fixed ladder 1 by clamping device, easy to use, and, can to the strong point of slideway 3, move fast by clamping device, can regulate according to on-the-spot service condition, and when fixed ladder 1 is conventional elevator, can on-the-spot carry out the installation of side-rolling ladder 2, very convenient.
Wherein, above-mentioned extension ladder also comprises fixed pulley 5, and fixed pulley 5 setting corresponding to slideway 3, between side-rolling ladder 2 sandwiched fixed pulleys 5 and slideway 3.Frictional force when reducing side-rolling ladder 2 and slide by fixed pulley 5, convenient slip, and fixed pulley 5 can also play certain supporting role, has further improved the stability of side-rolling ladder 2,
Wherein, slideway 3 comprises that the first slideway 6 and the second slideway 7, the first slideways 6 are coated and fixed on the longeron of fixed ladder 1 by bolt 8, and bolt 8 is through the longeron of the first slideway 6 and fixed ladder 1.The second slideway 7 slides for side-rolling ladder 2, this fixed form can better be fixed on slideway 3 on fixed ladder 1, because the first slideway 6 is coated on the longeron of fixed ladder 1, then fixing by bolt 8, between the first slideway 6 and the longeron of fixed ladder 1, there is very large frictional force so, now, by bolt 8, the longeron of the first slideway 6 and fixed ladder 1 is clamped, fixed effect is better so, when side-rolling ladder 2 slides in the second slideway 7, more stable.
So now, if fixed pulley 5 is also set, fixed pulley 5 setting corresponding to slideway 3, between side-rolling ladder 2 sandwiched fixed pulleys 5 and slideway 3, can be fixed on fixed pulley 5 on bolt 8 so, and structure has obtained optimization, thereby reduces cost of manufacture.
Wherein, beams fixture 4 has first and buckles with second and buckle, and first buckles and second leave gap between buckling.During use, in the time need to realizing relative the fixing of side-rolling ladder 2 and fixed ladder 1, the crossbeam of fixed ladder 1 can be buckled through hanging over first from gap, then the crossbeam of side-rolling ladder 2 is also buckled through hanging over second from this gap, first buckles with second and buckles itself and link together, together with side-rolling ladder 2 can being hung with fixed ladder 1, simple in structure, easy to use, cost is lower.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (6)

1. an extension ladder, it is characterized in that, comprise fixed ladder, slideway, side-rolling ladder and beams fixture, wherein, described slideway is fixed on described fixed ladder, described side-rolling ladder is arranged in described slideway, and described beams fixture is fixedly connected with the crossbeam of the crossbeam of described fixed ladder and described side-rolling ladder.
2. extension ladder according to claim 1, is characterized in that, described slideway is fixedly clamped on the longeron of described fixed ladder by clamping device.
3. extension ladder according to claim 1, is characterized in that, also comprises fixed pulley, and the setting corresponding to described slideway of described fixed pulley, described in described side-rolling ladder sandwiched between fixed pulley and described slideway.
4. extension ladder according to claim 1, it is characterized in that, described slideway comprises the first slideway and the second slideway, and described the first slideway is coated and fixed on the longeron of described fixed ladder by bolt, and described bolt is through the longeron of described the first slideway and described fixed ladder.
5. extension ladder according to claim 4, is characterized in that, also comprises fixed pulley, the setting corresponding to described slideway of described fixed pulley, and between fixed pulley and described slideway, described fixed pulley is fixed on described bolt described in described side-rolling ladder sandwiched.
6. extension ladder according to claim 1, is characterized in that, described beams fixture has first and buckles with second and buckle, and described first buckles and described second leave gap between buckling.
CN201320657757.9U 2013-10-23 2013-10-23 Telescopic ladder Active CN203547504U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320657757.9U CN203547504U (en) 2013-10-23 2013-10-23 Telescopic ladder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320657757.9U CN203547504U (en) 2013-10-23 2013-10-23 Telescopic ladder

Publications (1)

Publication Number Publication Date
CN203547504U true CN203547504U (en) 2014-04-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104389507A (en) * 2014-10-28 2015-03-04 浙江同泰建设集团有限公司 Length-variable altitude outdoor operation device
CN105322463A (en) * 2015-11-19 2016-02-10 国家电网公司 Insulated outlet extending horizontal ladder for tension string on ultra-high voltage transmission line

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104389507A (en) * 2014-10-28 2015-03-04 浙江同泰建设集团有限公司 Length-variable altitude outdoor operation device
CN105322463A (en) * 2015-11-19 2016-02-10 国家电网公司 Insulated outlet extending horizontal ladder for tension string on ultra-high voltage transmission line

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