CN104627873A - Safety crawling ladder structure of tower crane - Google Patents
Safety crawling ladder structure of tower crane Download PDFInfo
- Publication number
- CN104627873A CN104627873A CN201310572335.6A CN201310572335A CN104627873A CN 104627873 A CN104627873 A CN 104627873A CN 201310572335 A CN201310572335 A CN 201310572335A CN 104627873 A CN104627873 A CN 104627873A
- Authority
- CN
- China
- Prior art keywords
- crawling ladder
- safety
- cat ladder
- tower crane
- connecting rods
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/18—Devices for preventing persons from falling
- E06C7/185—Devices providing a back support to a person on the ladder, e.g. cages
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses a safety crawling ladder structure of a tower crane. The safety crawling ladder structure comprises a crawling ladder frame arranged on a tower crane support frame, and pedaling rods which are arranged on the crawling ladder frame and are used for climbing, wherein hinged shafts are arranged at the upper and lower ends of steel pipes on two sides of the crawling ladder frame; two upper swing rods and two lower swing rods are respectively and rotationally arranged on two sides of the top end and two sides of the bottom end of the crawling ladder frame by virtue of the hinged shafts; the free ends of the upper and lower swing rods are respectively hinged to the upper and lower ends of two longitudinal connecting rods; the top ends and bottom ends of the two longitudinal connecting rods are respectively connected by virtue of two transverse connecting rods; the joints of the two ends of the transverse connecting rods and the longitudinal connecting rods are of hinged structures; the safety crawling ladder structure also comprises safety ropes which are arranged along the height direction of the longitudinal connecting rods at intervals; the safety ropes sequentially pass through one end of the crawling ladder frame; and the longitudinal connecting rods at the end and the longitudinal connecting rods at the other end are finally fixed at the other end of the crawling ladder frame.
Description
Technical field
The present invention relates to security device field, building site, be specifically related to the safety protection equipment of tower crane.
Background technology
Tower crane is called for short tower machine, is commonly called as tower crane.Batch micro operations and application has been started in the thirties in 20th century.The tower machine industry of China is started in the 1950's, and current domestic Ta Ji manufacturer has family more than 400.The sales volume of 2010 is 40000, and tower machine recoverable amount has reached 200,000, can be rated as No.1 Ta Ji big country of the world.But safety problem becomes the sharp sword be suspended on tower machine industry head already, the development of serious restriction tower machine industry, works the mischief to people's lives and properties.National security production supervision Public Roads Administration security expert, Zhu Jianbu building safety Committee of Experts committee member expert Li Shoulin point out, in recent years, the use amount of tower crane, elevator is on the increase, grave accident occurs again and again, bring heavy losses to people's lives and properties, cause serious social harmful effect.According to statistics, China's tower crane accidents rate was in ascendant trend year by year in recent years, and within 2006, being 7.20 ‰, 2007 is 7.90 ‰, within 2008, is 8.15 ‰, within 2009, is 11.2 ‰.
Tower crane accident rate remains high for years, causes the concern of government.Within 2008, country has promulgated GB/T5031-2008 " tower crane " new standard, is that the management of China crane safety is stepped into the international rank of advanced units and laid a good foundation from technical regulation aspect.
Existing safety of tower crane cat ladder does not mostly arrange protection guardrail in the outside of cat ladder framework, therefore climbs process quite dangerous; Some up-to-date tower cranes its take into account this point; so the protect-ing frame structure of U-shaped structure in cat ladder framework outer setting, although it serves the effect of protection climbing personnel, because existing protect-ing frame structure is fixing framework; therefore it takes up room greatly, and assembling process takes time and effort.
Summary of the invention
The present invention is directed to the deficiency that above-mentioned prior art exists, provide a kind of safety climbing ladder structure of tower crane, it has the structure can protecting climbing personnel, and meanwhile, this structure takes up room little, and assembling is simple.
The technical solution adopted for the present invention to solve the technical problems is: the safety climbing ladder structure of tower crane, comprise the cat ladder framework be arranged on tower crane bracing frame, and be arranged at cat ladder framework tramples bar for what climb, the upper and lower side of described cat ladder framework both sides steel pipe is provided with jointed shaft; Two upper pendulum bars and two draft links are rotatably installed in both sides, top and the both sides, bottom of cat ladder framework respectively by jointed shaft;
The free end of above-mentioned upper draft link is hingedly mounted on the upper and lower side of two longitudinal rods respectively; The top of two longitudinal rods is also connected respectively by two transverse links with bottom, and the two ends of transverse link and the junction of longitudinal rod are similarly articulated structure;
Also comprise the spaced apart safety rope of connecting rod short transverse along the longitudinal, safety rope is successively through one end of cat ladder framework, and the longitudinal rod of this end, and the longitudinal rod of the other end, is finally fixed on the other end of cat ladder framework.
Further: above-mentioned safety rope, through while cat ladder framework both sides and two longitudinal rods, is also bundled in the position that it passes.
The invention has the beneficial effects as follows:
The safety climbing ladder structure of tower crane of the present invention, installs longitudinal rod, upper pendulum bar by arranging articulated structure, and draft link is assembled into the framework of protection climbing personnel, passes through safety rope protection climbing personnel simultaneously; Because this protect-ing frame structure can be rotated, it can well be packed up when not using, and make it touch tower crane support itself, take up room little, packaging efficiency is high, climbing personnel is served to the effect of protection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Description of reference numerals:
1-draft link, 2-tramples bar, 3-longitudinal rod, 4-safety rope, 5-cat ladder framework, 6-upper pendulum bar, 7-jointed shaft, 8-transverse link.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the invention is described:
Fig. 1 shows the specific embodiment of the present invention, as shown in the figure, the safety climbing ladder structure of tower crane of the present invention, comprise the cat ladder framework 5 be arranged on tower crane bracing frame, and be arranged at cat ladder framework 5 tramples bar 2 for what climb, the upper and lower side of described cat ladder framework 5 both sides steel pipe is provided with jointed shaft 7; Two upper pendulum bars 6 and two draft links 1 are rotatably installed in both sides, top and the both sides, bottom of cat ladder framework 5 respectively by jointed shaft 7;
The free end of above-mentioned upper draft link is hingedly mounted on the upper and lower side of two longitudinal rods 3 respectively; The top of two longitudinal rods 3 is also connected respectively by two transverse links 8 with bottom, and the two ends of transverse link 8 and the junction of longitudinal rod 3 are similarly articulated structure;
Also comprise the spaced apart safety rope 4 of connecting rod 3 short transverse along the longitudinal, safety rope is successively through one end of cat ladder framework 5, and the longitudinal rod of this end, and the longitudinal rod of the other end, is finally fixed on the other end of cat ladder framework 5.
Preferably, above-mentioned safety rope, through while cat ladder framework 5 both sides and two longitudinal rods, is also bundled in the position that it passes.
By reference to the accompanying drawings the preferred embodiment for the present invention is explained in detail above; but the invention is not restricted to above-mentioned embodiment, all improvement in the ken that those of ordinary skill in the art possess carried out based on thought of the present invention all drop in protection scope of the present invention.
Do not depart from the spirit and scope of the present invention and can make other changes many and remodeling.Should be appreciated that and the invention is not restricted to specific embodiment, scope of the present invention is defined by the following claims.
Claims (2)
1. the safety climbing ladder structure of tower crane, comprise the cat ladder framework (5) be arranged on tower crane bracing frame, and be arranged at cat ladder framework (5) tramples bar (2) for what climb, it is characterized in that: the upper and lower side of described cat ladder framework (5) both sides steel pipe is provided with jointed shaft (7); Two upper pendulum bars (6) and two draft links (1) are rotatably installed in both sides, top and the both sides, bottom of cat ladder framework (5) respectively by jointed shaft (7);
The free end of above-mentioned upper pendulum bar (6) and draft link (1) is hingedly mounted on the upper and lower side of two longitudinal rods (3) respectively; The top of two longitudinal rods (3) is also connected respectively by two transverse links (8) with bottom, and the two ends of transverse link (8) and the junction of longitudinal rod (3) are similarly articulated structure;
Also comprise the spaced apart safety rope of connecting rod (3) short transverse (4) along the longitudinal, safety rope is successively through one end of cat ladder framework (5), and the longitudinal rod of this end (3), the longitudinal rod (3) of the other end, is finally fixed on the other end of cat ladder framework (5).
2. the safety climbing ladder structure of tower crane as claimed in claim 1, is characterized in that: described safety rope (4), through while cat ladder framework (5) both sides and two longitudinal rods (3), is also bundled in the position that it passes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572335.6A CN104627873A (en) | 2013-11-13 | 2013-11-13 | Safety crawling ladder structure of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310572335.6A CN104627873A (en) | 2013-11-13 | 2013-11-13 | Safety crawling ladder structure of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104627873A true CN104627873A (en) | 2015-05-20 |
Family
ID=53207188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310572335.6A Pending CN104627873A (en) | 2013-11-13 | 2013-11-13 | Safety crawling ladder structure of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104627873A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179227A (en) * | 2018-10-14 | 2019-01-11 | 张家港市天运建筑机械有限公司 | A kind of safe climbing mechanism applied to derrick crane |
| CN110984841A (en) * | 2019-11-28 | 2020-04-10 | 张重阳 | Protective function cat ladder that outdoor building or factory building used |
| CN111042730A (en) * | 2019-11-28 | 2020-04-21 | 张重阳 | Ladder stand |
-
2013
- 2013-11-13 CN CN201310572335.6A patent/CN104627873A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179227A (en) * | 2018-10-14 | 2019-01-11 | 张家港市天运建筑机械有限公司 | A kind of safe climbing mechanism applied to derrick crane |
| CN109179227B (en) * | 2018-10-14 | 2023-12-01 | 张家港市天运建筑机械有限公司 | Be applied to tower crane's safe climbing mechanism |
| CN110984841A (en) * | 2019-11-28 | 2020-04-10 | 张重阳 | Protective function cat ladder that outdoor building or factory building used |
| CN111042730A (en) * | 2019-11-28 | 2020-04-21 | 张重阳 | Ladder stand |
| CN110984841B (en) * | 2019-11-28 | 2021-11-09 | 山东鑫润机电安装工程有限公司 | Protective function cat ladder that outdoor building or factory building used |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |