CN102897679A - Movable railing device of a tower-type crane upper supporting seat outboard crawling ladder and a crawling ladder - Google Patents
Movable railing device of a tower-type crane upper supporting seat outboard crawling ladder and a crawling ladder Download PDFInfo
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- CN102897679A CN102897679A CN2012104285896A CN201210428589A CN102897679A CN 102897679 A CN102897679 A CN 102897679A CN 2012104285896 A CN2012104285896 A CN 2012104285896A CN 201210428589 A CN201210428589 A CN 201210428589A CN 102897679 A CN102897679 A CN 102897679A
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- cat ladder
- steel pipe
- shaped lever
- crawling ladder
- baffle plate
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Abstract
The invention discloses a movable railing device of a tower-type crane upper supporting seat outboard crawling ladder and a crawling ladder. The height of the crawling ladder exceeds a tower-type crane upper supporting seat, a first end of a U-shaped stop bar (4) is hinged with the upper end of a crawling ladder first vertical steel pipe on one side of the crawling ladder, one end of a chain (6) is fixedly connected with a second end of the U-shaped stop bar (4), and the other end of the chain (6) is fixedly connected with a bushing (7); and the second end of the U-shaped stop bar (4) is arranged between the crawling ladder first vertical steel pipe and a crawling ladder second vertical steel pipe on the other side of the crawling ladder, or under the state that the second end of the U-shaped stop bar (4) is contacted with the crawling ladder second vertical steel pipe, the bushing (7) can be sleeved on the upper end of the crawling ladder second vertical steel pipe. According to the movable railing device of the tower-type crane upper supporting seat outboard crawling ladder and the crawling ladder, the movable U-shaped stop bar is added, so that the safety and the individualized design of the crawling ladder are improved; and moreover, the structural form is simple and easiness in production is realized.
Description
Technical field
The present invention relates to technical field of engineering machinery, relate in particular to a kind of movable hurdle device and cat ladder of tower crane upper bracket external cat ladder.
Background technology
The version of existing tower crane upper bracket external cat ladder is too simple and easy, and the consideration of hommization aspect is short of to some extent in the design process, and safety prevention measure is not in place, is prone to the problem of personal safety aspect.
In existing upper bracket external cat ladder structure design, normally used have following two kinds, such as the tower crane upper bracket external cat ladder among Figure 1A to Fig. 1 D.Figure 1A is the cat ladder upper end version concordant with upper bracket with cat ladder among the 1B, and wherein, Figure 1A is front view, and Figure 1B is left view.The relevant personnel must walk around from cat ladder one side the version of the cat ladder of could coming in and going out although the cat ladder among Fig. 1 C and the 1D exceeds the certain distance of upper bracket, and Fig. 1 C is front view, and Fig. 1 D is left view.These two kinds of cat ladder versions are not very perfect cat ladder version: the cat ladder structure is too simple and easy, and safety prevention measure is not in place, and human oriented design is low, has following technical disadvantages:
1. there is potential safety hazard.Main steel pipe discrepancy cat ladder or the discrepancy cat ladder of bending over to creep of upper bracket external cat ladder both sides lack personal safe protection's device because the people need detour, and have potential safety hazard when causing the staff to come in and go out cat ladder.
2. human oriented design level is low.Owing to need to detour or the upper bracket external cat ladder of coming in and going out of bending over to creep, the requirement of this and human oriented design aspect is not inconsistent.
3. increased the difficulty of the cat ladder of coming in and going out.Detour or the discrepancy mode of upper bracket external cat ladder of coming in and going out of bending over to creep owing to adopt, to cause to be unfavorable for staff's cat ladder of coming in and going out, effort, time-consuming when causing the staff to come in and go out cat ladder.
Summary of the invention
In view of this, the technical matters that the present invention will solve provides a kind of movable hurdle device of tower crane upper bracket external cat ladder, increases mobilizable U-shaped lever.
A kind of movable hurdle device of tower crane upper bracket external cat ladder, the height of cat ladder surpasses the tower crane upper bracket, comprising: U-shaped lever 4, chain 6 and sleeve pipe 7; The first end of described U-shaped lever 4 is hinged with the upper end of cat ladder the first perpendicular steel pipe that is positioned at cat ladder one side, and wherein, described U-shaped lever 4 can rotate around described cat ladder the first perpendicular steel pipe; One end of described chain 6 is captiveed joint with the second end of described U-shaped lever 4, and the other end of described chain 6 is captiveed joint with described sleeve pipe 7; Wherein, the second end at described U-shaped lever 4 erects between steel pipe and cat ladder the second perpendicular steel pipe at the cat ladder opposite side at described cat ladder first, perhaps under the second end of described U-shaped lever 4 and the state that described cat ladder the second perpendicular steel pipe contact, described sleeve pipe 7 can be enclosed within the upper end that described cat ladder second erects steel pipe.
According to an embodiment of movable hurdle of the present invention device, further, also comprise: connector bushing 3 and baffle plate 5; Described connector bushing 3 is captiveed joint with the upper end of described cat ladder the first perpendicular steel pipe, described baffle plate 5 is arranged on the top of described connector bushing 3, the first end of described U-shaped lever 4 pass described connector bushing 3 and, described baffle plate 5 is captiveed joint with the top of the first end of described U-shaped lever 4, so that the upper end of the first end of described U-shaped lever 4 and described cat ladder the first perpendicular steel pipe forms hinged; Wherein, described baffle plate 5 is circular or square, and the width of described baffle plate 5 or diameter are greater than the diameter of described connector bushing 3.
According to an embodiment of movable hurdle of the present invention device, further, also comprise: the width of described U-shaped lever 4 equals the width of described cat ladder.
According to an embodiment of movable hurdle of the present invention device, further, described connector bushing 3 is steel pipe; Described connector bushing 3 welds with the upper end of described cat ladder the first perpendicular steel pipe.
According to an embodiment of movable hurdle of the present invention device, further, described baffle plate 5 is circular steel plate; The welded top of the first end of described baffle plate 5 and described U-shaped lever 4.
According to an embodiment of movable hurdle of the present invention device, further, an end of described chain 6 and the welding of the second end of described U-shaped lever 4, the other end of described chain 6 and 7 welding of described sleeve pipe.
According to an embodiment of movable hurdle of the present invention device, further, described sleeve pipe 7 is two steel pipes side by side, that be welded to connect.
A kind of tower crane upper bracket external cat ladder comprises the movable hurdle device of aforesaid tower crane upper bracket external cat ladder.
Movable hurdle device and the cat ladder of tower crane upper bracket external cat ladder of the present invention by increasing by a mobilizable U-shaped lever, have improved safety and the human oriented design level thereof of cat ladder, and version simple, be easy to produce.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1A to 1D is the scheme drawing of tower crane upper bracket external cat ladder of the prior art;
Fig. 2 A and 2B are the scheme drawing according to an embodiment of the movable hurdle device of tower crane upper bracket external cat ladder of the present invention.
The specific embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention wherein is described.Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.Below in conjunction with figure and embodiment technical scheme of the present invention is carried out many-sided description.
For the shortcomings and deficiencies that exist in the existing upper bracket external cat ladder structure design, in order to reach in process of production simple, efficient, in use reach safe, reliable, convenient, so the movable hurdle device of design tower crane upper bracket external cat ladder.
Fig. 2 is the scheme drawing according to an embodiment of the movable hurdle device of tower crane upper bracket external cat ladder of the present invention.As shown in Figure 2, Fig. 2 A is front view, and Fig. 2 B is left view:
The height of cat ladder surpasses the upper bracket at the top of tower crane agent structure 1.The movable hurdle device of tower crane upper bracket external cat ladder comprises: U-shaped lever 4, chain 6 and sleeve pipe 7; The first end of U-shaped lever 4 is hinged with the upper end of cat ladder the first perpendicular steel pipe that is positioned at cat ladder one side, and U-shaped lever 4 can rotate around cat ladder the first perpendicular steel pipe.
The first end of U-shaped lever 4 and the second end are used for distinguishing the two ends of U-shaped lever 4 among the present invention, only distinguish on describing, not actual implication.
One end of chain 6 is captiveed joint with the second end of U-shaped lever 4, and the other end of chain 6 is captiveed joint with sleeve pipe 7; Between cat ladder the first perpendicular steel pipe and cat ladder the second perpendicular steel pipe at the cat ladder opposite side, perhaps under the second end of U-shaped lever 4 and the state that cat ladder the second perpendicular steel pipe contacts, sleeve pipe 7 can be enclosed within the upper end that cat ladder second erects steel pipe at the second end of U-shaped lever 4.
Cat ladder the first perpendicular steel pipe and cat ladder the second perpendicular steel pipe are two perpendicular steel pipes of cat ladder among the present invention, lay respectively at the both sides of cat ladder, and " first " and " second " only distinguishes on describing, not actual implication.
According to one embodiment of present invention, the upper end of the first end of U-shaped lever 4 and cat ladder the first perpendicular steel pipe forms hingedly can adopt various ways, and hinge for example is installed, or hinge is installed is carried out hinged etc.
The movable hurdle device of tower crane upper bracket external cat ladder of the present invention has greatly improved safety and the human oriented design level thereof of cat ladder by increasing by a mobilizable U-shaped lever.
According to one embodiment of present invention, connector bushing 3 can be set captives joint with the upper end of cat ladder the first perpendicular steel pipe, the first end of U-shaped lever 4 passes connector bushing 3 and at the top of the first end of U-shaped lever 4 baffle plate 5 is set, so that the upper end of the first end of U-shaped lever 4 and cat ladder the first perpendicular steel pipe forms hinged.
Baffle plate 5 is above connector bushing 3, and baffle plate 5 is captiveed joint with the top of the first end of U-shaped lever 4, and the width of baffle plate 5 or diameter are greater than the diameter of connector bushing 3.
Baffle plate 5 can be for square or circular, or other shape guarantees that U-shaped lever 4 can landing from connector bushing 3.According to an embodiment, baffle plate 5 is circular steel plate, the welded top of the first end of baffle plate 5 and U-shaped lever 4.
According to one embodiment of present invention, the width of U-shaped lever 4 equals the width of cat ladder, also can be greater than or less than the width of cat ladder.Connector bushing 3 is to be steel pipe, and connector bushing 3 welds with the upper end of cat ladder the first perpendicular steel pipe.
According to one embodiment of present invention, an end of chain 6 and the welding of the second end of U-shaped lever 4, the other end of chain 6 and sleeve pipe 7 welding.Sleeve pipe 7 can be two steel pipes side by side, that be welded to connect.
According to one embodiment of present invention, U-shaped lever 4 one ends of activity and cat ladder are wherein formed mobilizable chain connection mode in the main steel pipe of a side (cat ladder the first perpendicular steel pipe) end, the other end is connected with the gimmal of certain-length; The free end of gimmal then with two side by side integrally welded steel-pipe welding get up; During use, two side by side any one in the integrally welded steel pipe be inserted in the cat ladder opposite side master steel pipe (cat ladder the second perpendicular steel pipe).
Cat ladder both sides master's steel pipe of tower crane upper bracket external cat ladder exceeds the suitable distance of upper bracket, a steel pipe is welded in a side master steel pipe (cat ladder first perpendicular steel pipe) end therein, U-shaped lever is penetrated wherein and weld a baffle plate in U-shaped lever end, make mobilizable chain connection of formation between U-shaped lever and the cat ladder master steel pipe.
Get the gimmal of certain-length, an end and movable U-shaped lever are welded and fixed and are integral, the other end with two side by side integrally welded steel-pipe welding be connected.By with two side by side any one in the integrally welded steel pipe be inserted in the cat ladder opposite side master steel pipe (cat ladder the second perpendicular steel pipe), can play the effect of safety precaution.
By with two side by side the welding steel pipe in any one be inserted in the cat ladder opposite side master steel pipe, can form simple, safe and reliable cat ladder safety device.This kind version is made simple, easy for installation, safe and reliable.
According to one embodiment of present invention, a kind of tower crane upper bracket external cat ladder comprises the movable hurdle device of aforesaid tower crane upper bracket external cat ladder.
Movable hurdle device and the cat ladder of tower crane upper bracket external cat ladder of the present invention since version simple, be easy to produce, safe and reliable, have following advantage:
Version simple, be easy to produce.Because simple in structure, production and processing just realizes easily, and the stock size precision just can satisfy operating needs, thereby saved work and the trouble in the production process, promoted the efficient of production and processing.
2. safe and reliable.In the process of using; personnel after having crossed from cat ladder turn over U-shaped lever, get up with the steel pipe socket of the sleeve pipe on the gimmal with U-shaped lever and ladder one end; form a space safety, that the protection fence is arranged in the aerial agent structure of height like this, avoid high aerial potential safety hazard.
3. sleeve pipe human oriented design level is high.Weld two side by side steel pipes, one of them is inserted in the staircase steel pipe, and another is inserted in the U-shaped lever, and is easy to use like this, and effect is very better.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the present invention's design is suitable for special-purpose.
Claims (8)
1. the movable hurdle device of a tower crane upper bracket external cat ladder, the height of cat ladder surpasses the tower crane upper bracket, it is characterized in that, comprising:
U-shaped lever (4), chain (6) and sleeve pipe (7);
The first end of described U-shaped lever (4) is hinged with the upper end of cat ladder the first perpendicular steel pipe that is positioned at cat ladder one side, and wherein, described U-shaped lever (4) can rotate around described cat ladder the first perpendicular steel pipe;
One end of described chain (6) is captiveed joint with the second end of described U-shaped lever (4), and the other end of described chain (6) is captiveed joint with described sleeve pipe (7);
Wherein, the second end at described U-shaped lever (4) erects between steel pipe and cat ladder the second perpendicular steel pipe at the cat ladder opposite side at described cat ladder first, perhaps under the second end of described U-shaped lever (4) and the state that described cat ladder the second perpendicular steel pipe contact, described sleeve pipe (7) can be enclosed within the upper end that described cat ladder second erects steel pipe.
2. movable hurdle as claimed in claim 1 device is characterized in that, also comprises:
Connector bushing (3) and baffle plate (5);
Described connector bushing (3) is captiveed joint with the upper end of described cat ladder the first perpendicular steel pipe, described baffle plate (5) is arranged on the top of described connector bushing (3), the first end of described U-shaped lever (4) pass described connector bushing (3) and, described baffle plate (5) is captiveed joint with the top of the first end of described U-shaped lever (4), so that the upper end of the first end of described U-shaped lever (4) and described cat ladder the first perpendicular steel pipe forms hinged;
Wherein, described baffle plate (5) is circular or square, and the width of described baffle plate (5) or diameter are greater than the diameter of described connector bushing (3).
3. movable hurdle as claimed in claim 2 device is characterized in that:
The width of described U-shaped lever (4) equals the width of described cat ladder.
4. movable hurdle as claimed in claim 2 device is characterized in that:
Described connector bushing (3) is steel pipe;
Described connector bushing (3) welds with the upper end of described cat ladder the first perpendicular steel pipe.
5. movable hurdle as claimed in claim 4 device is characterized in that:
Described baffle plate (5) is circular steel plate;
The welded top of the first end of described baffle plate (5) and described U-shaped lever (4).
6. movable hurdle as claimed in claim 1 device is characterized in that:
The second end welding of one end of described chain (6) and described U-shaped lever (4), the other end of described chain (6) and described sleeve pipe (7) welding.
7. movable hurdle as claimed in claim 5 device is characterized in that:
Described sleeve pipe (7) is two steel pipes side by side, that be welded to connect.
8. tower crane upper bracket external cat ladder is characterized in that:
Comprise the movable hurdle device such as the described tower crane upper bracket of claim 1 to 7 any one external cat ladder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210428589.6A CN102897679B (en) | 2012-10-31 | 2012-10-31 | Movable railing device of a tower-type crane upper supporting seat outboard crawling ladder and a crawling ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210428589.6A CN102897679B (en) | 2012-10-31 | 2012-10-31 | Movable railing device of a tower-type crane upper supporting seat outboard crawling ladder and a crawling ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102897679A true CN102897679A (en) | 2013-01-30 |
| CN102897679B CN102897679B (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210428589.6A Expired - Fee Related CN102897679B (en) | 2012-10-31 | 2012-10-31 | Movable railing device of a tower-type crane upper supporting seat outboard crawling ladder and a crawling ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102897679B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179224A (en) * | 2018-10-14 | 2019-01-11 | 张家港市天运建筑机械有限公司 | A kind of secondary safety applied to derrick crane internal platform entrance |
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| CN201027147Y (en) * | 2007-04-11 | 2008-02-27 | 上海盛东国际集装箱码头有限公司 | Overhead operation flat base for examining and repairing pulling rails of quayside container crane |
| US20080128204A1 (en) * | 2006-11-30 | 2008-06-05 | Ardisam, Inc. | Hunting stand |
| CN101448552A (en) * | 2006-04-04 | 2009-06-03 | 塔物流有限公司 | Climbing assistant device |
| CN201665487U (en) * | 2009-08-11 | 2010-12-08 | 周明忠 | Standard section for high strength tower crane |
| CN201778641U (en) * | 2010-07-14 | 2011-03-30 | 广州永联钢结构有限公司 | Safety door for vertical ladder exit/entrance |
| CN202924625U (en) * | 2012-10-31 | 2013-05-08 | 徐州重型机械有限公司 | Movable bar device of upper support external ladder stand of tower crane and ladder stand |
-
2012
- 2012-10-31 CN CN201210428589.6A patent/CN102897679B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101448552A (en) * | 2006-04-04 | 2009-06-03 | 塔物流有限公司 | Climbing assistant device |
| US20080128204A1 (en) * | 2006-11-30 | 2008-06-05 | Ardisam, Inc. | Hunting stand |
| CN201027147Y (en) * | 2007-04-11 | 2008-02-27 | 上海盛东国际集装箱码头有限公司 | Overhead operation flat base for examining and repairing pulling rails of quayside container crane |
| CN201665487U (en) * | 2009-08-11 | 2010-12-08 | 周明忠 | Standard section for high strength tower crane |
| CN201778641U (en) * | 2010-07-14 | 2011-03-30 | 广州永联钢结构有限公司 | Safety door for vertical ladder exit/entrance |
| CN202924625U (en) * | 2012-10-31 | 2013-05-08 | 徐州重型机械有限公司 | Movable bar device of upper support external ladder stand of tower crane and ladder stand |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179224A (en) * | 2018-10-14 | 2019-01-11 | 张家港市天运建筑机械有限公司 | A kind of secondary safety applied to derrick crane internal platform entrance |
| CN109179224B (en) * | 2018-10-14 | 2023-12-01 | 张家港市天运建筑机械有限公司 | Be applied to auxiliary safety mechanism of tower crane inside platform access & exit |
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| Publication number | Publication date |
|---|---|
| CN102897679B (en) | 2015-03-11 |
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Granted publication date: 20150311 Termination date: 20171031 |
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