CN101666205B - Foundation pit escape ladder - Google Patents
Foundation pit escape ladder Download PDFInfo
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- CN101666205B CN101666205B CN200910152863XA CN200910152863A CN101666205B CN 101666205 B CN101666205 B CN 101666205B CN 200910152863X A CN200910152863X A CN 200910152863XA CN 200910152863 A CN200910152863 A CN 200910152863A CN 101666205 B CN101666205 B CN 101666205B
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- ladder
- cleat stanchion
- foundation pit
- cleat
- prolong
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Abstract
The invention discloses a foundation pit escape ladder, comprising a top ladder and one or a plurality of extension ladders (2), wherein, the top ladder is composed of two ladder posts (3) made of rigid materials and a plurality of bars (4) made of rigid materials, wherein, the bars (4) are fixed on the two ladder posts (3), the top ladder is fixed on the pressed capping beam of the foundation pit; the extension ladders (2) are composed of two ladder posts (3) made of rigid materials and a plurality of bars (4) made of rigid materials; each extension ladder (2) is connected with the ladder of the previous height in a detachable manner. The foundation pit escape ladder can not sway when climbing, and has favorable safety and durability.
Description
Technical field
The present invention relates to the safety device in a kind of civil engineering, specifically is a kind of particularly foundation pit escape ladder of the foundation ditch of super dark (degree of depth surpass 5m), super narrow the width of narrow place (be no more than 5m) of construction space anxiety of foundation ditch that is applicable to.
Background technology
Along with expanding economy, it is nervous that land resources is tending towards.Civil construction project particularly in the city civil construction project in bustling location begin to develop on a large scale and utilize the underground space.At present, China's building structure is some commercial building structures particularly, generally have one deck or two layers of basement.The building structure that some is large-scale even comprise three layers, four layers basement, the cutting depth of its foundation ditch reaches below the 16m.Simultaneously, along with the development of track traffic in recent years, the excavation of subway station foundation ditch is also more and more general, and the cutting depth of subway station foundation ditch generally surpasses 20m.There is certain danger in Foundation Pit Construction, and the excavation of foundation pit degree of depth is big more, and its degree of danger is high more.In case the base pit engineering serious accident occurs, constructing operation personnel's Casualty Vulnerability Number is often very big.In order to guarantee constructing operation personnel personal safety, according to the safety in production policy of " safety first, put prevention first ", should accomplish prevention in advance, later emergent safety measure takes place in the accident of carrying out again.Therefore, the measure that guarantee constructing operation personnel in time withdrew after the foundation ditch accident took place is extremely important.
In a single day at present, the emergency safety accident occurs in the foundation pit construction process, constructing operation personnel utilize Rope ladder for escaping to flee from from foundation ditch.Traditional Rope ladder for escaping by vertical two wire rope and level to some squares wood tabulas constitute, described wire rope is generally knitted nylon rope by the φ 18mm outsourcing in the zinc-plated rope punching of the φ 6mm at center and the outside and is constituted, and the top colligation of described wire rope is on the capping beam of foundation ditch.
But traditional Rope ladder for escaping has following shortcoming: at first, because wire rope is a flexible material, when people climbed rope ladder in the escape process, violent rocking can take place in rope ladder, made the people produce nervous sense and fear, increased the difficulty of escape and rescue work.Secondly, because the top colligation of rope ladder wire rope is on the foundation ditch capping beam, the rope ladder wire rope is sagging and be attached on the pattern foundation pit supporting structure wall under nature, if things go on like this, nylon rope is knitted in the outsourcing of wire rope and friction can appear between the walls unavoidably, cause the outsourcing of wire rope to knit nylon rope appearance wearing and tearing, like this, can reduce the safety and the durability of rope ladder; And, be fixed on tabula on the wire rope also along with wire rope is attached on the wall, when people climb, with hand, pin tabula and wall are separated earlier, again hand, pin are shelved on the tabula, like this, be unfavorable for climbing.Once more, because traditional Rope ladder for escaping length is certain, when the degree of depth of excavation of foundation pit surpassed rope ladder length, the rope ladder safety of job site butt joint did not reach requirement, can only get in touch with manufacturer, and special tailor-made, like this, process is loaded down with trivial details, use is inconvenient.
Summary of the invention
The technical problem to be solved in the present invention is, can not rock when a kind of the climbing is provided and the foundation pit escape ladder of its safety and good endurance.
Technical solution of the present invention is, a kind of foundation pit escape ladder with following structure is provided, it comprises a top ladder, and described top ladder is made of with the tabula that is fixed on some rigid materials on two cleat stanchions the cleat stanchion of two rigid materials, and described top ladder is fixed on the foundation ditch capping beam.
After adopting above structure, foundation pit escape ladder of the present invention compared with prior art has the following advantages:
Owing to adopted the cleat stanchion of rigid material, when old friends climb Emergency Ladder in the escape process, violent rocking can not take place again, reduced people's anxiety sense and fear, reduced the difficulty of escape and rescue work; Because cleat stanchion is a rigid material, stopped traditional Emergency Ladder again because fricative wearing and tearing have strengthened safety and durability.
As improvement, it also comprises one or more prolongation ladders, described prolongation ladder is made of the cleat stanchion of two rigid materials and the tabula of some rigid materials, each prolongs removable connection of ladder of a terraced and last height, and like this, people can be according to foundation depth, prolong with one or more that ladder is removable to be connected on last one highly the ladder to change the length of whole foundation pit escape ladder easily, so can be applicable to the foundation ditch of different depth, promptly more convenient, applicability is wider.
As improving again, each both sides that prolong the cleat stanchion upper end of ladder all is welded with two pad muscle parallel with cleat stanchion, described two hooks are welded on the side away from cleat stanchion of two pad muscle respectively, like this, distance between two hooks of this prolongation ladder is greater than the width of the ladder of a last height, avoided because the feasible distance that prolongs between two hooks of ladder of the operation error of job site can't be with prolonging the terraced puzzlement that is suspended on the last height ladder, so make that the hook that prolongs ladder is convenient less than the width of the ladder of a last height.
As further improvement, the lower end of two cleat stanchions of described top ladder and the lower end that each prolongs two cleat stanchions of ladder are respectively equipped with two welding holes, described two welding holes are all run through by the long reinforcing bar of a length greater than the ladder width, described long reinforcing bar plug welding in two welding holes and long reinforcing bar two ends protrude the cleat stanchion both sides, like this, utilize plug welding technology to strengthen the safety and the steadiness of this Emergency Ladder.
Improve as step also, described tabula is made of reinforcing bar, and every tabula is welded on two cleat stanchions, and like this, than traditional wooden tabula, reinforcing bar tabula of the present invention is more firm, and safety is better, and is more suitable for hand and climbs pedal.
As further improving again, side by foundation ditch on the described capping beam is embedded with pre-embedded steel slab, be welded with two parallel channel-section steels on the described pre-embedded steel slab, the upper end of two cleat stanchions of described top ladder is welded on the end of two channel-section steels away from pre-embedded steel slab respectively, like this, described cleat stanchion and tabula be away from the foundation ditch wall, promptly stopped the loss that the friction of cleat stanchion and wall causes, form the slit of tabula and foundation ditch between the walls again, be beneficial to climbing.
As also further improving, its stage casing is provided with some groups of reinforced support devices, like this, has further strengthened the safety and the steadiness of Emergency Ladder.
Description of drawings
Fig. 1 be foundation pit escape ladder of the present invention the prolongation ladder face structural representation.
Fig. 2 is the sectional structure enlarged diagram along the A-A line among Fig. 1.
Fig. 3 is the sectional structure enlarged diagram along the B-B line among Fig. 1.
Fig. 4 is the partial side TV structure schematic diagram of the prolongation ladder of foundation pit escape ladder of the present invention.
Fig. 5 is the partial side TV structure schematic diagram of the top ladder of foundation pit escape ladder of the present invention when being installed in foundation ditch capping beam place.
Fig. 6 be the prolongation ladder of foundation pit escape ladder of the present invention be installed in foundation ditch enclose the purlin place time partial side TV structure schematic diagram.
Shown in the figure 1, the top ladder, 2, prolong ladder, 3, cleat stanchion, 4, tabula, 5, capping beam, 6, hook, 7, the pad muscle, 8, welding hole, 9, long reinforcing bar, 10, pre-embedded steel slab, 11, channel-section steel, 12, enclose purlin, 13, reinforced steel.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, foundation pit escape ladder of the present invention, it comprises a top ladder 1 and a plurality of prolongation ladder 2.Described top ladder 1 is made of with the tabula 4 that is fixed on some rigid materials on two cleat stanchions 3 cleat stanchion 3 of two rigid materials.Described prolongation ladder 2 is made of the cleat stanchion 3 of two rigid materials and the tabula 4 of some rigid materials.The cleat stanchion 3 of described rigid material is meant the cleat stanchion 3 of angle steel material.Described tabula 4 is made of reinforcing bar, and every tabula 4 is welded on two cleat stanchions 3.Described top ladder 1 is fixed on the foundation ditch capping beam 5, be that the side by foundation ditch is embedded with pre-embedded steel slab 10 on the described capping beam 5, be welded with two parallel channel-section steels 11 on the described pre-embedded steel slab 10, the upper end of two cleat stanchions 3 of described top ladder 1 is welded on the end of two channel-section steels 11 away from pre-embedded steel slab 10 respectively.Each prolongs removable connection of ladder (comprising top ladder 1 and each prolongation terraced 2) of ladder 2 and a last height, be that the lower end of described top ladder 1 and the lower end of each prolongation ladder 2 are equipped with hanging device, each prolongs terraced 2 upper ends and is equipped with down hanging device, and the lower end that the lower end of described top ladder 1 and each prolong ladder 2 all prolongs terraced 2 upper ends by upper and lower hanging device and each and articulates.
Present embodiment adopts following concrete structure: the equal evagination in both sides that the both sides of cleat stanchion 3 lower ends of described top ladder 1 and each prolong terraced 2 cleat stanchion 3 lower ends have two levels to reinforcing bar, be that the lower end of 1 two cleat stanchions 3 of described top ladder and the lower end that each prolongs terraced 2 two cleat stanchions 3 are respectively equipped with two welding holes 8, described two welding holes 8 are all run through by the long reinforcing bar 9 of a length greater than the ladder width, described long reinforcing bar 9 plug weldings in two welding holes 8 and long reinforcing bar 9 two ends protrude cleat stanchion 3 both sides.Each both sides that prolong cleat stanchion 3 upper ends of ladder 2 is equipped with two hooks 6, and promptly each both sides that prolong cleat stanchion 3 upper ends of ladder 2 all is welded with two pad muscle 7 parallel with cleat stanchion 3, and described two hooks 6 are welded on two sides away from cleat stanchion 3 of filling up muscle 7 respectively.Each two hook 6 that prolong ladder 2 all can be suspended on highly two reinforcing bars of ladder lower end evagination.
The stage casing of the foundation pit escape ladder of present embodiment is provided with some groups of reinforced support devices, be to enclose the corresponding height of purlin 12 with every layer of foundation ditch on the foundation pit escape ladder of present embodiment to be provided with two parallel reinforced steels 13, one end of every reinforced steel 13 is welded on the cleat stanchion 3 of Emergency Ladder, and the other end is welded on the top end face that encloses purlin 12.
Claims (7)
1. foundation pit escape ladder, it is characterized in that: it comprises a top ladder (1), described top ladder (1) is made of the cleat stanchion (3) of two rigid materials and the tabula (4) that is fixed on some rigid materials on two cleat stanchions (3), and described top terraced (1) is fixed on the foundation ditch capping beam (5); It also comprises one or more prolongations ladders (2), and the described ladder (2) that prolongs is made of the cleat stanchion (3) of two rigid materials and the tabula (4) of some rigid materials, and each prolongs ladder (2) and last one highly removable connection of ladder; The lower end that the lower end of described top ladder (1) and each prolong ladder (2) is equipped with hanging device, each prolongs terraced (2) upper end and is equipped with down hanging device, and the lower end that the lower end of described top ladder (1) and each prolong ladder (2) all articulates by upper and lower hanging device and each prolongation ladder (2) upper end; The equal evagination in both sides that the both sides of cleat stanchion (3) lower end of described top ladder (1) and each prolong cleat stanchion (3) lower end of ladder (2) have two levels to reinforcing bar, each both sides that prolong cleat stanchion (3) upper end of ladder (2) is equipped with two hooks (6), and each two hook (6) that prolong ladder (2) all can be suspended on highly two reinforcing bars of ladder lower end evagination.
2. foundation pit escape ladder according to claim 1, it is characterized in that: the both sides of cleat stanchion (3) upper end of each prolongation ladder (2) are equipped with two hooks (6) and are meant, each both sides that prolong cleat stanchion (3) upper end of ladder (2) all is welded with two pad muscle (7) parallel with cleat stanchion (3), and described two hooks (6) are welded on the side away from cleat stanchion (3) of two pad muscle (7) respectively.
3. foundation pit escape ladder according to claim 1, it is characterized in that: the equal evagination in both sides that the both sides of cleat stanchion (3) lower end of described top ladder (1) and each prolong cleat stanchion (3) lower end of ladder (2) have two levels to reinforcing bar be meant, the lower end that the lower end of described top (1) two cleat stanchion of ladder (3) and each prolong (2) two cleat stanchions of ladder (3) is respectively equipped with two welding holes (8), described two welding holes (8) are all run through by the long reinforcing bar (9) of a length greater than the ladder width, described long reinforcing bar (9) plug welding in two welding holes (8) and long reinforcing bar (9) two ends protrude cleat stanchion (3) both sides.
4. foundation pit escape ladder according to claim 1 is characterized in that: described tabula (4) is made of reinforcing bar, and every tabula (4) is welded on two cleat stanchions (3).
5. foundation pit escape ladder according to claim 1, it is characterized in that: described top ladder (1) is fixed on the foundation ditch capping beam (5) and is meant, the side that described capping beam (5) is gone up by foundation ditch is embedded with pre-embedded steel slab (10), be welded with two parallel channel-section steels (11) on the described pre-embedded steel slab (10), the upper end of two cleat stanchions (3) of described top ladder (1) is welded on the end of two channel-section steels (11) away from pre-embedded steel slab (10) respectively.
6. foundation pit escape ladder according to claim 1 is characterized in that: its stage casing is provided with some groups of reinforced support devices.
7. according to any one described foundation pit escape ladder in the claim 1～6, it is characterized in that: the cleat stanchion of described rigid material (3) is meant the cleat stanchion (3) of angle steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910152863XA CN101666205B (en) | 2009-09-19 | 2009-09-19 | Foundation pit escape ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910152863XA CN101666205B (en) | 2009-09-19 | 2009-09-19 | Foundation pit escape ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101666205A CN101666205A (en) | 2010-03-10 |
| CN101666205B true CN101666205B (en) | 2011-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910152863XA Expired - Fee Related CN101666205B (en) | 2009-09-19 | 2009-09-19 | Foundation pit escape ladder |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870339A (en) * | 2010-06-21 | 2010-10-27 | 大连船舶重工集团舵轴有限公司 | Straight ladder for ship |
| CN102995915B (en) * | 2012-11-19 | 2014-12-17 | 天津二建建筑工程有限公司 | Structure for connecting tilted stair with rest platform of prefabricated assembled detachable type foundation pit ladder |
| CN106837163B (en) * | 2016-12-30 | 2019-06-14 | 浙江国丰集团有限公司 | Deep basal pit hook-hang type Emergency Ladder fabrication and installation construction method and Emergency Ladder |
| CN108561068A (en) * | 2018-05-02 | 2018-09-21 | 无锡泰源机器制造有限公司 | Deployable and collapsible Emergency Ladder with rain-baffling device |
| CN110025903A (en) * | 2019-04-10 | 2019-07-19 | 沈阳建筑大学 | A kind of best-effort path design method based on super high-rise building foundation pit movable type escape compartment |
| CN112727152B (en) * | 2020-12-28 | 2022-06-03 | 宜昌富海建设工程有限公司 | Connection structure between construction stair and floor in deep basal pit |
| CN117509460B (en) * | 2023-11-17 | 2024-10-18 | 山东普济建设集团有限公司 | Foundation pit escape structure and escape method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201598968U (en) * | 2009-09-19 | 2010-10-06 | 华丰建设股份有限公司 | Escape device for foundation pit |
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2009
- 2009-09-19 CN CN200910152863XA patent/CN101666205B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201598968U (en) * | 2009-09-19 | 2010-10-06 | 华丰建设股份有限公司 | Escape device for foundation pit |
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| CN101666205A (en) | 2010-03-10 |
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